WORLDBASE

WORLDBASE Players GM Obregon Rivero, J

Stockfish
GameID: 0
FIDE Country B-Year Gender Standard Rapid Blitz
3507815 MEX 1989 M 2463 2503 2515
696 games
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3530029 GM Obregon Rivero, J (2473) GM Tan, Zhongyi (2520) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.d3 Qf6 8.Be3 Bxf3 9.Qxf3 Qxf3 10.gxf3 f6 11.f4 exf4 12.Bxf4 O-O-O 13.Nd2 g5 14.Be3 Ne7 15.f4 Bh6 16.f5 Rdg8 17.Rae1 g4 18.h4 Rd8 19.Bxh6 Rxh6 20.Kg2 c5 21.Rf2 Nc6 22.b3 Rh7 23.Nf1 Ne5 24.Ne3 c6 25.Nc4 Re7 26.Nxe5 Rxe5 27.Kg3 b5 28.Rd2 Kc7 29.a3 a5 30.Kf4 b4 31.axb4 axb4 32.Ra1 Kb7 33.Rdd1 Ra8 34.Rxa8 Kxa8 35.d4 cxd4 36.Rxd4 Rc5 37.Rd6 Rxc2 38.Rxf6 Rf2+ 39.Ke5 c5 40.Rc6 g3 41.Rxc5 Kb7 42.Rd5 Kc6 43.Rd6+ Kc5 44.Rg6 g2 45.f6 Kc6 46.Ke6 Rf4 47.Rxg2 Rxe4+ 48.Kf5 Rxh4 49.f7 Rh3 50.Rf2 1-0
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529778 GM Obregon Rivero, J (2473) CM Sava, Robert-Gabriel (2292) 0-1
1.Nf3 Nf6 2.g3 b5 3.Bg2 Bb7 4.O-O e6 5.d3 c5 6.Nbd2 d5 7.e4 Nc6 8.Re1 Be7 9.e5 Nd7 10.c3 O-O 11.Nf1 a5 12.Bf4 b4 13.h4 a4 14.a3 bxc3 15.bxc3 Ba6 16.N1h2 Na5 17.Ra2 Rb8 18.Qxa4 Bxd3 19.Nd2 Nc4 20.Qd1 Nxd2 21.Rxd2 c4 22.h5 Rb1 23.Qxb1 Bxb1 24.Rxb1 Bg5 25.Rb7 Nxe5 26.Bxg5 Qxg5 27.f4 Qxg3 28.fxe5 Qxc3 29.Nf3 Qe3+ 30.Rf2 d4 31.Rc7 c3 32.Rc4 Rd8 33.Bf1 h6 34.Kg2 Qe4 35.Re2 Qg4+ 36.Kf2 Qf4 37.Re1 Qf5 38.Rd1 Qc2+ 39.Ke1 d3 40.Rc5 d2+ 41.Ke2 Qd3+ 42.Kf2 Qc2 43.Be2 Qb2 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529580 FM Ocampos, I (2286) GM Obregon Rivero, J (2473) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Bc4 e6 6.Nf3 a6 7.O-O b5 8.Bd3 Nge7 9.Bf4 Ng6 10.Bg3 d6 11.Qe2 Be7 12.Rfd1 O-O 13.e5 d5 14.h4 Re8 15.h5 Nf8 16.h6 g6 17.Bf4 Bb7 18.Rac1 Rc8 19.Bb1 Qb6 20.Bg5 Bc5 21.Qd2 Nd7 22.Re1 Ne7 23.Re2 a5 24.a3 Bc6 25.Qf4 b4 26.axb4 axb4 27.Nd1 Nf5 28.g4 Nd4 29.Nxd4 Bxd4 30.Ne3 Bb5 31.Rec2 Rxc2 32.Nxc2 Bxe5 33.Qf3 Bxb2 34.Re1 b3 35.Nb4 Ne5 36.Qf6 Nc4 37.Qf3 Qd4 38.Nxd5 Qxd5 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529862 Koc, P (2346) GM Obregon Rivero, J (2473) 0-1
1.d4 Nf6 2.Nf3 g6 3.Nbd2 Bg7 4.e4 O-O 5.Bd3 d6 6.O-O c6 7.a4 Qc7 8.c3 e5 9.h3 Nbd7 10.Re1 Re8 11.Qc2 a5 12.Nc4 b6 13.dxe5 dxe5 14.Be3 Ba6 15.Rad1 Bf8 16.Qb3 Nc5 17.Bxc5 Bxc5 18.g4 h6 19.Kg2 Kg7 20.Qc2 Nh7 21.Ne3 Bb7 22.Bc4 Nf8 23.h4 Ne6 24.Bxe6 Rxe6 25.h5 Qe7 26.Rh1 Bxe3 27.fxe3 c5 28.Kf2 Rd6 29.hxg6 fxg6 30.Rxd6 Qxd6 31.Rd1 Qe7 32.Qd3 Re8 33.Qd6 Bxe4 34.Qxe7+ Rxe7 35.Kg3 Kf6 36.Rd6+ Re6 37.Rxe6+ Kxe6 38.Nd2 Bc2 39.Nc4 Bxa4 40.Nxb6 Bb3 41.c4 Kd6 42.e4 Kc6 43.Nd5 Bxc4 44.Ne7+ Kd6 45.Nxg6 Be6 46.Nh4 c4 47.Nf3 c3 48.bxc3 a4 49.Ne1 Bb3 50.Nd3 a3 51.Nc1 Bf7 52.Kh4 a2 53.Nxa2 Bxa2 54.Kh5 Be6 55.Kxh6 Bxg4 56.Kg5 Be2 57.Kf5 Bc4 58.Kf6 Be6 59.c4 Bxc4 60.Kf5 Bd3 61.Kg4 Bxe4 62.Kg3 Kd5 63.Kf2 Kd4 64.Ke2 Bd3+ 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3530120 GM Obregon Rivero, J (2473) FM Cumpe, Lucas (2340) 1-0
1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg2 d6 6.d3 c5 7.h3 Nc6 8.Be3 e5 9.Qd2 Re8 10.Bh6 Bh8 11.Bg5 Qa5 12.e4 Be6 13.h4 h5 14.Bxf6 Bxf6 15.Bh3 Nd4 16.Nxd4 exd4 17.Ne2 Qxd2+ 18.Kxd2 b5 19.Bxe6 fxe6 20.cxb5 Rab8 21.a4 a6 22.Nf4 axb5 23.axb5 Rxb5 24.Kc2 d5 25.exd5 exd5 26.Rhe1 Reb8 27.Rab1 c4 28.Nxg6 cxd3+ 29.Kxd3 Rb3+ 30.Ke2 d3+ 31.Kd2 Bxb2 32.Ne7+ Kf7 33.Nxd5 R8b5 34.Re7+ Kf8 35.Rd7 Rc5 36.Rd1 Be5 37.Ke3 d2+ 38.Ke4 Bg7 39.Rxd2 Rc4+ 40.Kf5 Rf3+ 41.Kg6 Rc6+ 42.Kg5 Bh6+ 43.Kxh5 Bxd2 44.Nf4 Bxf4 45.Kg4 Rxf2 46.gxf4 Rf6 47.Rd4 Kf7 48.Rd7+ Kg6 49.Rd4 Kf7 50.h5 Re2 51.Rd7+ Re7 52.Rd5 Re8 53.Rd7+ Re7 54.Rd5 Re8 55.Rd4 Rg8+ 56.Kf3 Rf5 57.Rd7+ Ke6 58.Rb7 Rf6 59.Rb6+ Kf7 60.Rb5 Re6 61.Rb7+ Re7 62.Rb5 Re6 63.Rf5+ Rf6 64.Rd5 Rg4 65.Rd7+ Ke6 66.Rd4 Rgxf4+ 67.Rxf4 Rh6 68.Re4+ Kf5 69.Rh4 Kf6 70.Rh2 Rxh5 71.Rf2 1-0
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529612 GM Obregon Rivero, J (2473) Vazelakis, D (1871) 1-0
1.Nf3 f5 2.c4 Nf6 3.Nc3 d6 4.d4 e6 5.Qc2 Be7 6.e4 fxe4 7.Nxe4 O-O 8.Bd3 h6 9.Bd2 Nc6 10.O-O-O Qe8 11.Nxf6+ Bxf6 12.Be3 e5 13.Rhe1 Nb4 14.Qb3 Nxd3+ 15.Rxd3 e4 16.Bd2 exd3 17.Rxe8 Rxe8 18.Qxd3 Bg4 19.h3 Bh5 20.g4 Bf7 21.g5 hxg5 22.Bxg5 Bxg5+ 23.Nxg5 Bg6 24.Qxg6 Re1+ 25.Kd2 Rae8 26.Qh7+ Kf8 27.Qh8+ Ke7 28.Qxe8+ Kxe8 29.Kxe1 Ke7 30.Ke2 Kf6 31.Ne4+ Kf5 32.Nc3 a6 33.Ke3 g5 34.f3 c6 35.Ne4 1-0
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529900 GM Obregon Rivero, J (2473) FM Manvelyan, Mikayel (2358) 0-1
1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 e6 6.Bc4 Nc6 7.Qe4 f5 8.Qe2 Qa5 9.Nf3 Be7 10.O-O O-O 11.a4 a6 12.b4 Qc7 13.a5 d6 14.exd6 Bxd6 15.Bxd5 exd5 16.Be3 f4 17.Bb6 Qf7 18.Nbd2 Bf5 19.Nb3 Rae8 20.Qd1 Bg4 21.h3 Bxf3 22.gxf3 Re5 23.Kh2 Rh5 24.Rg1 Qe6 25.Rg4 Ne5 26.Nd4 Qh6 27.Qf1 Nxg4+ 28.fxg4 f3+ 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3530174 FM Causo, D (2222) GM Obregon Rivero, J (2473) 0-1
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Nc6 6.dxc5 Qxc5 7.Be3 Qa5 8.Nbd2 e6 9.Qb3 Be7 10.Be2 O-O 11.O-O Qc7 12.Rfe1 b6 13.Nd4 Nxd4 14.Bxd4 Bb7 15.Bf3 Bxf3 16.Nxf3 Rac8 17.Re2 Nd5 18.Rae1 Bc5 19.Be5 Qb7 20.Qa4 Be7 21.Qg4 Bf6 22.h4 b5 23.h5 h6 24.Bd4 Bxd4 25.Nxd4 b4 26.cxb4 Qxb4 27.a3 Qb6 28.Nf3 Nf6 29.Qh4 Rc5 30.Ne5 Qc7 31.b4 Rc1 32.Ng4 Rxe1+ 33.Rxe1 Nd5 34.Ne5 Qc3 35.Qe4 Qxa3 36.b5 a6 37.bxa6 Qxa6 38.Ng4 Rc8 39.Qf3 Qa5 40.Re5 Rc1+ 41.Kh2 Qa1 42.Rxd5 exd5 43.Qxd5 Rh1+ 44.Kg3 Qc3+ 45.f3 Qc7+ 46.f4 Rc1 47.Ne5 Rc3+ 48.Kh2 Rc5 49.Qd4 Qe7 50.Kh3 Rc8 51.g3 Rd8 52.Qc4 Qd6 53.Qxf7+ Kh7 54.Qf5+ Kg8 55.Qf7+ Kh8 56.Ng6+ Kh7 57.Qf5 Kg8 58.Ne5 Qf6 59.Qxf6 gxf6 60.Ng4 Kg7 61.Ne3 Re8 62.Nf5+ Kh7 63.Kg4 Rb8 64.Kf3 Rb3+ 65.Kg4 Rb5 66.Nh4 Kg7 67.Ng6 f5+ 68.Kh3 Kf6 69.Nh4 Rb1 70.Nf3 Rh1+ 71.Nh2 Rg1 72.Nf3 Ra1 73.Ne5 Ra3 74.Kh4 Re3 75.Ng6 Rf3 76.g4 Rf1 77.g5+ Kg7 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3530202 GM Sarana, A (2666) GM Obregon Rivero, J (2473) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3 a6 8.O-O-O Bd7 9.Nxc6 Bxc6 10.f4 Be7 11.Qd4 Qa5 12.Bd3 e5 13.Qe3 exf4 14.Bxf4 Nd7 15.Nd5 Bxd5 16.exd5 Qb6 17.Rhe1 Qxe3+ 18.Rxe3 Kd8 19.Rde1 Ne5 20.Bxe5 dxe5 21.Rxe5 Bd6 22.Rf5 f6 23.h3 Re8 24.Rff1 h6 25.Bf5 Rxe1+ 26.Rxe1 Be5 27.c3 Kc7 28.Kc2 Kd6 29.Be6 b6 30.Re4 Ra7 31.h4 g5 32.h5 f5 33.Bxf5 Kxd5 34.g4 Rc7 35.Rb4 b5 36.Bd3 Kc5 37.a4 Rb7 38.Re4 Kd6 39.axb5 axb5 40.Rb4 Kc5 41.Re4 Kd6 42.Kb3 Rb8 43.Re1 b4 44.cxb4 Kd5 45.Rd1 Kd4 46.Bf5+ Ke3 47.Re1+ Kd4 48.Rd1+ Ke3 49.Rd5 Kf4 50.b5 Ra8 51.b6 Ra6 52.Rb5 Bb8 53.b7 Rd6 54.Kc4 Ke3 55.Rb3+ Kf4 56.Kc5 Ke5 57.Re3+ Kf6 58.Re8 1-0
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529958 FM Sreyas, Payyappat (2200) GM Obregon Rivero, J (2473) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.g4 h5 11.Be2 hxg4 12.fxg4 Ne5 13.h4 Nfxg4 14.Bxe7 Qxe7 15.Rdg1 Rxh4 16.Rxh4 Qxh4 17.Bxg4 Nxg4 18.Nf3 Qf2 19.Rxg4 Qxf3 20.Rxg7 O-O-O 21.Qxd6 Bc6 0-1
2026.08.20 2nd 3-0 Thu 20th Aug 2026
3529716 GM Bok, B (2560) GM Obregon Rivero, J (2473) 1-0
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 c5 6.dxc5 Qa5 7.Qa4 Qxc5 8.Be3 Qh5 9.Nh3 Nc6 10.Nf4 Qe5 11.O-O d6 12.Rad1 Bd7 13.Qb3 Na5 14.Qb4 Nc6 15.Qa3 Qa5 16.Qxa5 Nxa5 17.b3 Rfc8 18.Ncd5 Nxd5 19.Nxd5 Kf8 20.Bg5 Nc6 21.c5 h6 22.Be3 e6 23.Nf4 d5 24.Bc1 a5 25.Nd3 Nb4 26.Ba3 Nc2 27.c6+ Nxa3 28.cxb7 Rab8 29.bxc8=Q+ Rxc8 30.Rc1 Bc3 31.Rfd1 Bb5 32.Bf1 Ke7 33.e3 Bd7 34.Nf4 g5 35.Ne2 Bb2 36.Rxc8 Bxc8 37.Nd4 Bd7 38.Rd2 Bc3 39.Rd3 Bb4 40.Rd1 e5 41.Ne2 Be6 42.Rc1 Nb5 43.Bg2 d4 44.exd4 Nxd4 45.Nxd4 exd4 46.Be4 f5 47.Bd3 Kd6 48.Kf1 Bd5 49.Ke2 Be4 50.f3 Bd5 51.Bc4 a4 52.Bxd5 Kxd5 53.Kd3 axb3 54.axb3 Bc3 55.Rxc3 dxc3 56.Kxc3 g4 57.fxg4 fxg4 58.Kd3 h5 59.Ke3 Ke5 60.b4 Kd5 61.Kf4 Kc4 62.Kg5 Kxb4 63.Kxh5 Kc5 64.Kxg4 Kd6 65.h4 Ke7 66.h5 Kf8 67.Kg5 Kg8 68.h6 Kh8 69.g4 Kg8 70.Kh5 Kh8 71.g5 Kg8 72.g6 Kh8 73.Kg5 Kg8 74.Kf6 Kf8 75.h7 1-0
2026.08.09 IV Aguascalientes Int
3508968 FM Perez Rodriguez, Cesar Alejandro (2391) GM Obregon Rivero, J (2473) 1-0
1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.Bc4 Be7 6.a4 c6 7.O-O Qc7 8.Re1 O-O 9.h3 a5 10.b3 exd4 11.Nxd4 Ne5 12.Bf1 Re8 13.Bb2 Qb6 14.Kh1 Ng6 15.Qd2 Bf8 16.Rad1 Bd7 17.g3 Rad8 18.Bg2 Qc5 19.f4 Bc8 20.Qf2 Qb6 21.g4 d5 22.e5 Nd7 23.Qg3 Bc5 24.Nce2 Bb4 25.Rf1 Bf8 26.h4 c5 27.Nf5 d4 28.h5 Ngxe5 29.fxe5 Nxe5 30.Nf4 g6 31.hxg6 fxg6 32.Nd5 Qe6 33.Nf6+ Qxf6 34.Nh6+ Bxh6 35.Rxf6 Nxg4 36.Rf3 Ne3 37.Re1 Bf5 38.Bc1 Bxc2 39.Bxe3 Bxe3 40.Rfxe3 1-0
2026.08.08 IV Aguascalientes Int
3508930 FM Garcia de Dios, Jose Antonio (2301) GM Obregon Rivero, J (2473) 0-1
1.d4 d6 2.Nf3 Nf6 3.c4 g6 4.g3 Bg7 5.Bg2 O-O 6.Nc3 Nc6 7.d5 Nb8 8.O-O e5 9.e4 Nbd7 10.Ne1 Ne8 11.Be3 f5 12.Nd3 Nef6 13.f3 Nh5 14.Bf2 Bh6 15.b4 a5 16.a3 Ndf6 17.exf5 gxf5 18.c5 Qe8 19.Re1 axb4 20.Nxb4 Qg6 21.Qc2 e4 22.f4 Ng4 23.Nb5 Nxf2 24.Qxf2 Ra5 25.a4 Bg7 26.Ra2 Nf6 27.cxd6 Ng4 28.Qc5 Qxd6 29.Qxd6 cxd6 30.h3 Nf6 31.Rc1 Bd7 32.Nxd6 Nxd5 33.Nxd5 Rxd5 34.Nxb7 Rb8 35.Rc7 Bd4+ 36.Kh2 Bb6 37.Rac2 Bxc7 38.Rxc7 Rc8 0-1
2026.08.08 IV Aguascalientes Int
3508946 GM Obregon Rivero, J (2473) IM Torres Rosas, L (2342) 1-0
1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O g6 5.b3 Bg7 6.Bb2 c5 7.c4 O-O 8.d4 cxd4 9.Qxd4 d6 10.Nc3 Nbd7 11.Qd2 a6 12.Nd4 Bxg2 13.Kxg2 Qc8 14.e4 Qb7 15.f3 e6 16.Rfd1 Rfd8 17.Qe2 Rac8 18.Nc2 Ne8 19.Ne3 b5 20.Rac1 Rb8 21.Rd2 Rdc8 22.Ncd1 Ne5 23.Nf2 bxc4 24.Bxe5 Bxe5 25.Nxc4 Bg7 26.Rcd1 Qb5 27.Qe3 Bf8 28.Qf4 h5 29.h4 a5 30.Nh3 a4 31.Ng5 Qb7 32.e5 d5 33.Nb6 Rc6 34.Nxd5 exd5 35.Rxd5 Rc7 36.e6 fxe6 37.Nxe6 Rf7 38.Qg5 Rf6 39.Nf4 Qf7 40.Rd7 Be7 41.Qe5 Bd6 42.R1xd6 Nxd6 43.Rxf7 Kxf7 44.Nd5 Re6 45.Qf4+ Kg8 46.Nc7 Re2+ 47.Kh3 Nf7 48.Qf6 Nh8 49.Ne6 Rb7 50.Qf8+ 1-0
2026.08.07 IV Aguascalientes Int
3508877 FM Avila Rodriguez, Joshua Adrian (2256) GM Obregon Rivero, J (2473) 1-0
1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O h6 9.Nxc6 bxc6 10.Bf4 d5 11.Qe3 Qa5 12.Be2 dxe4 13.Nxe4 Nd5 14.Qg3 Nxf4 15.Qxf4 Ra7 16.Nd6+ Bxd6 17.Qxd6 Qb6 18.Bf3 Bd7 19.Rd3 Rb7 20.Rhd1 Qxb2+ 21.Kd2 f6 22.Bxc6 Bxc6 23.Qxe6+ Re7 24.Qxc6+ Kf7 25.Qc4+ Kg6 26.Rg3+ Kh7 27.Qd3+ f5 28.Qxf5+ Kg8 29.Qd5+ Rf7 30.Rf3 Qb7 31.Qxf7+ Qxf7 32.Rxf7 Kxf7 33.c4 Ke6 34.Kc3 Rb8 35.h4 Rf8 36.Rd2 a5 37.c5 Rb8 38.Rb2 Rf8 39.Kc4 Kd7 40.Rb7+ Kc6 41.Rb6+ Kc7 42.Rg6 Rxf2 43.Rxg7+ Kc6 44.Rg6+ Kc7 45.a4 Rc2+ 46.Kb5 Rb2+ 47.Kxa5 h5 48.g3 Rb3 49.Ka6 Rb4 50.Rb6 Rxa4+ 51.Kb5 Ra3 52.Rg6 Rb3+ 53.Kc4 Rxg3 1-0
2026.08.07 IV Aguascalientes Int
3508903 GM Obregon Rivero, J (2473) CM Paredes Guzman, Francisco Javier (2137) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.Qd2 Nbd7 11.a4 Rc8 12.a5 Qc7 13.Rfc1 Rfe8 14.f3 Qb8 15.Kh1 Bf8 16.Qd1 h6 17.Nd5 Nxd5 18.exd5 Bf5 19.c4 Bh7 20.Nd2 Be7 21.b4 Bg5 22.Bxg5 hxg5 23.Ne4 Bxe4 24.fxe4 Nf6 25.Bd3 Qa7 26.c5 dxc5 27.Qg1 Nd7 28.b5 Red8 29.Qe3 axb5 30.Bxb5 Nf6 31.Bc4 Nh7 32.Rcb1 Rd6 33.Rb5 Rc7 34.Qc3 Re7 35.Qa3 Rc7 36.Qb2 Re7 37.Rb6 Rxb6 38.axb6 Qb8 39.Qb5 Re8 40.Qxc5 Rc8 41.Qb4 Nf6 42.Bb5 Rd8 43.Ra7 Qc8 44.Ra1 Qb8 45.Qe7 Nxe4 46.Rc1 Nf6 47.Rc7 Rf8 48.Qxe5 Qa8 49.h3 g4 50.d6 gxh3 51.d7 hxg2+ 52.Kg1 Qa2 53.Qc5 Qb1+ 54.Kxg2 Qb2+ 55.Kf3 Qb3+ 56.Kg2 Qb2+ 57.Kg1 Qb1+ 58.Bf1 Qg6+ 59.Bg2 Qb1+ 60.Kh2 Qd3 61.Bd5 Qd2+ 62.Kg1 Qg5+ 63.Kh1 Qh4+ 64.Kg1 Nxd7 1/2-1/2
2026.08.06 IV Aguascalientes Int
3508834 FM Ramos Silvera, Roberto Alejandro (2349) GM Obregon Rivero, J (2473) 0-1
1.e4 c5 2.Nc3 Nc6 3.Nf3 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O O-O 9.Bb3 d6 10.h3 Bd7 11.Re1 Rfe8 12.Nf3 Rac8 13.Qe2 h6 14.Rad1 Qh5 15.Nd4 Na5 16.Nd5 Nxe4 17.Qxh5 gxh5 18.Bxh6 Nxb3 19.axb3 Bxh6 20.Rxe4 Kf8 21.Rde1 Rc5 22.c4 Bg7 23.Nf3 e6 24.b4 Rcc8 25.Nc3 f5 26.Rh4 Bf6 27.Rxh5 Rxc4 28.Rh7 Re7 29.Rxe7 Bxe7 30.b5 Bd8 31.Rd1 Ke7 32.h4 Be8 33.Ra1 Bb6 34.Na4 Ba5 35.Nc5 Rxc5 36.Rxa5 Rxb5 37.Rxb5 Bxb5 38.h5 Kf6 39.h6 Kg6 40.Ng5 Kxh6 41.Nxe6 Kg6 42.f3 Bc4 43.Nd4 Kf6 44.f4 a5 45.Kf2 a4 46.Ke3 b5 47.Kd2 b4 48.Nc2 b3 49.Nd4 Bd5 50.g3 Be6 51.Nb5 Kg6 52.Nxd6 Kh5 53.Nb7 Bd7 54.Nc5 Be8 55.Nb7 Kg4 56.Nd6 Bd7 57.Nc4 Kxg3 58.Ke3 Be6 59.Na3 Kg2 60.Ke2 Bc8 61.Nb1 Bb7 62.Na3 Ba6+ 63.Ke3 Kf1 64.Nb1 Bc8 65.Nc3 Bd7 66.Nb1 Ke1 67.Nc3 Be8 68.Kd3 Kf2 69.Kd4 Kf3 70.Ke5 Ke3 71.Nb1 Kd3 72.Na3 Bd7 73.Kd5 Bc8 74.Ke5 Kd2 75.Kd4 Bd7 76.Nc4+ Kc2 77.Kc5 Be6 78.Nb6 a3 79.Kd4 0-1
2026.08.06 IV Aguascalientes Int
3508853 GM Obregon Rivero, J (2473) GM Galaviz Medina, Sion Radamantys (2522) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.c4 a6 5.Ba4 e5 6.O-O Ne7 7.Nc3 Nc6 8.d3 Be7 9.Nd5 O-O 10.Bd2 a5 11.Bxc6 bxc6 12.Nxe7+ Qxe7 13.a4 f5 14.exf5 Rxf5 15.Re1 Qf6 16.Qe2 Nf8 17.Qe4 Bd7 18.Ra3 Ne6 19.Rb3 Rf8 20.Rb7 Be8 21.Rb8 h6 22.Be3 Nd4 23.Bxd4 cxd4 24.Rxe8 Rxe8 25.Qxc6 Rf8 26.Qd5+ Kh8 27.Qe4 Rf4 28.Qe2 Qg6 29.Kh1 Qg4 30.b3 R8f6 31.h3 Qh5 32.Ng1 Qxe2 33.Nxe2 Rxf2 34.Kg1 Rf8 35.Ng3 Rd2 36.c5 Rxd3 37.Kh2 Re3 38.Rxe3 dxe3 39.cxd6 Rd8 40.Kg1 Rxd6 41.Kf1 Rd3 0-1
2026.08.05 IV Aguascalientes Int
3508793 WIM Ortez, Andrea (1977) GM Obregon Rivero, J (2473) 0-1
1.e4 c5 2.c3 g6 3.d4 Qc7 4.Nf3 Bg7 5.Be3 d6 6.h3 Nd7 7.Nbd2 Ngf6 8.Bd3 O-O 9.O-O b6 10.Re1 Bb7 11.a4 c4 12.Bc2 e5 13.Qe2 Rac8 14.a5 exd4 15.Nxd4 a6 16.axb6 Nxb6 17.Bf4 Rfe8 18.Qe3 Nbd5 19.Qf3 Nxf4 20.Qxf4 Qb6 21.N2f3 Re7 22.Re2 Qxb2 23.Rb1 Qxc3 24.Re3 Qa5 25.Qxd6 Rd7 26.Qb6 Qxb6 27.Rxb6 Rdc7 28.Re1 Nd7 29.Rbb1 Nc5 30.Rb4 Nd3 31.Bxd3 cxd3 32.Re3 a5 33.Rb2 f5 34.e5 Be4 35.Ne6 Rc2 36.Rb1 Bh6 37.Neg5 Bxg5 38.Nxg5 Rc1+ 0-1
2026.08.05 IV Aguascalientes Int
3508813 GM Obregon Rivero, J (2473) IM Larduet Despaigne, C (2274) 1-0
1.Nf3 Nf6 2.g3 d5 3.Bg2 g6 4.c4 c6 5.b3 Bg7 6.Bb2 O-O 7.O-O Bg4 8.d4 Bf5 9.Nh4 Be6 10.Nd2 a5 11.e3 Qd7 12.Re1 Bh3 13.Bh1 Rd8 14.Qc2 e6 15.Rad1 Na6 16.Bc3 Qc7 17.a3 b5 18.Bb2 Rab8 19.Ndf3 Rdc8 20.Ng5 Bf5 21.Nxf5 gxf5 22.c5 Qe7 23.Nh3 Nc7 24.f3 Nce8 25.Bc3 Ra8 26.Bg2 Ra7 27.Nf4 Qd8 28.Kh1 Bh6 29.Nd3 Bg7 30.Re2 Nd7 31.Rg1 Nf8 32.Be1 Nf6 33.h4 Ng6 34.Bh3 Kh8 35.Rh2 Qe7 36.Bf1 Nf8 37.Qf2 N8d7 38.Bc3 a4 39.b4 Rg8 40.Qe1 Raa8 41.Nf2 e5 42.Bh3 Rae8 43.Bxf5 exd4 44.exd4 Qxe1 45.Rxe1 Rxe1+ 46.Bxe1 Re8 47.Nd3 Nf8 48.Bc3 N6d7 49.Rd2 Kg8 50.Kg2 Ne6 51.Nf2 Ndf8 52.f4 Ng6 53.Bc2 Nexf4+ 54.gxf4 Re3 55.Bxg6 Rxc3 56.Bf5 Rxa3 57.Bd7 Rb3 58.Bxc6 Rxb4 59.Nd3 Rxd4 60.Bxb5 1-0
2026.07.28 Titled Tue 28th Jul 2026
3499384 FM Hartge, Gedeon (2307) GM Obregon Rivero, J (2468) 1-0
1.e4 c5 2.Nc3 e6 3.Nf3 Nc6 4.d4 cxd4 5.Nxd4 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O Nxd4 9.Bxd4 Bc5 10.Bxc5 Qxc5 11.Na4 Qc7 12.c4 b6 13.Nc3 h5 14.Qe2 Ng4 15.f4 g5 16.h3 Qc5+ 17.Kh1 gxf4 18.Rxf4 Ne5 19.Raf1 Bb7 20.Nd5 exd5 21.exd5 d6 22.Rxf7 O-O-O 23.Re7 Kb8 24.b3 Rdf8 25.Bf5 Rhg8 26.Be6 Rxf1+ 27.Qxf1 Rd8 28.Qf6 Bc8 29.Qg7 b5 30.cxb5 axb5 31.a4 bxa4 32.bxa4 Ba6 33.Qg5 Rf8 34.Bf7 Rxf7 35.Rxf7 Nxf7 36.Qg8+ Bc8 37.Qxf7 h4 38.Qe7 Qc1+ 39.Kh2 Qf4+ 40.Kg1 Qd4+ 41.Kh2 Qxd5 42.Qxh4 Qe5+ 43.Qg3 Qd4 44.h4 Qc5 45.Qf4 Kc7 46.g4 Qc2+ 47.Kg3 Bb7 48.h5 Qc3+ 49.Kh4 Qe1+ 50.Kg5 Qe7+ 51.Qf6 Qe3+ 52.Kh4 d5 53.h6 Qe1+ 54.Kg5 Qe3+ 55.Qf4+ 1-0
2026.07.28 Titled Tue 28th Jul 2026
3499138 GM Obregon Rivero, J (2468) FM Zouaghi, Amir (2374) 1-0
1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 O-O 5.Bg2 d6 6.O-O e5 7.c4 Nc6 8.Nc3 Re8 9.e3 Bg4 10.h3 Bd7 11.d4 Qc8 12.Kh2 a6 13.d5 Ne7 14.e4 Rf8 15.Rc1 b6 16.b4 a5 17.a3 axb4 18.axb4 Qa6 19.c5 bxc5 20.bxc5 Bb5 21.Re1 Ba4 22.Qd2 Bb3 23.Bf1 Bc4 24.Ra1 Bxf1 25.Rxa6 Bxa6 26.cxd6 cxd6 27.Ba3 Rfd8 28.Nxe5 Nc8 29.Nc6 Re8 30.Bb4 Bc4 31.e5 dxe5 32.d6 Nd7 33.Ne7+ Kh8 34.Nxc8 Raxc8 35.Nd5 Bxd5 36.Qxd5 Rb8 37.Qxf7 1-0
2026.07.28 Titled Tue 28th Jul 2026
3499664 GM Obregon Rivero, J (2468) IM Czerw, D (2364) 1-0
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.c4 Bg7 5.Nc3 e5 6.O-O Nge7 7.Ne1 d6 8.Nc2 Be6 9.Ne3 O-O 10.Ned5 h6 11.d3 Kh7 12.Rb1 a5 13.a3 f5 14.Bd2 Rb8 15.b4 axb4 16.axb4 b6 17.b5 Bxd5 18.Nxd5 Nd4 19.e3 Ne6 20.Ra1 f4 21.Ra7 Nxd5 22.Bxd5 Nc7 23.exf4 Nxd5 24.cxd5 exf4 25.Bc3 Rg8 26.Qa1 Qf8 27.Re1 fxg3 28.hxg3 Kh8 29.Ree7 Bxc3 30.Rh7# 1-0
2026.07.28 Titled Tue 28th Jul 2026
3499961 WIM Mohammadi, Melika (2342) GM Obregon Rivero, J (2468) 1-0
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bd3 Nc6 5.Bc2 e5 6.h3 d5 7.exd5 Nxd5 8.O-O Be7 9.Re1 Qc7 10.d4 cxd4 11.cxd4 exd4 12.Bb3 Nf6 13.Nxd4 O-O 14.Nxc6 bxc6 15.Nc3 Bc5 16.Qf3 Bd6 17.Bg5 Nd7 18.Rad1 Ne5 19.Qh5 Ng6 20.Ne4 Be5 21.Be3 Nf4 22.Bxf4 Bxf4 23.g3 Bh6 24.Nf6+ Kh8 25.Ne8 Bg4 26.hxg4 Raxe8 27.Rxe8 Rxe8 28.Qxf7 Qxf7 29.Bxf7 Rf8 30.Rd7 Bg5 31.Rxa7 Bf6 32.b3 Bd4 33.Rb7 g6 34.Kg2 g5 35.f4 gxf4 36.gxf4 h6 37.a4 Bc3 38.Kf3 Rd8 39.Ke4 Rd4+ 40.Kf5 Bd2 41.Be6 Rd6 42.Rb8+ Kg7 43.Rb7+ Kf8 44.Rf7+ Ke8 45.Rh7 Rd4 46.Ke5 Bc3 47.Rh8+ Ke7 48.Rh7+ Kd8 49.Rh8+ Kc7 50.Rc8+ Kb7 51.Kf5 Bd2 52.Re8 Rxf4+ 53.Kg6 Bc3 54.Bf5 h5 55.gxh5 Rf2 56.h6 Rg2+ 57.Kf7 Rh2 58.h7 Kb6 59.Kg8 Rg2+ 60.Kf7 Rf2 61.Kg6 Rg2+ 62.Kf7 Rg5 63.Ke6 Rh5 64.Rg8 Rh6+ 65.Bg6 Ka5 66.Kf7 Kb4 67.h8=Q Bxh8 68.Rxh8 Rxh8 69.Bc2 Rh4 70.Bg6 Rf4+ 71.Ke6 Rf2 72.Kd7 Re2 73.Be4 Rd2+ 74.Kc7 Rd4 75.Bxc6 Rd3 76.Bb5 Rc3+ 77.Kb7 Rxb3 78.Ba6 1-0
2026.07.28 Titled Tue 28th Jul 2026
3498973 Ocampos, I (2325) GM Obregon Rivero, J (2468) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.a4 Be7 9.O-O O-O 10.f4 Bd7 11.h3 Rc8 12.Ba2 Qc7 13.Kh1 Na5 14.f5 Nc4 15.Bc1 Qb6 16.fxe6 fxe6 17.Qd3 Qc5 18.Nb3 Qc7 19.Nd2 b5 20.axb5 axb5 21.Bb3 Kh8 22.Nf3 Nh5 23.Rd1 Ng3+ 24.Kg1 d5 25.exd5 Bc5+ 26.Nd4 Qe5 27.Bxc4 bxc4 28.Qe3 Bxd4 29.Rxd4 Rf1+ 30.Kh2 Rh1# 0-1
2026.07.28 Titled Tue 28th Jul 2026
3500253 Nguyen Tung Quan (2175) GM Obregon Rivero, J (2468) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Nf6 5.Nc3 g6 6.O-O Bg7 7.d4 cxd4 8.Nxd4 O-O 9.Bxd7 Qxd7 10.b3 Nc6 11.Bb2 Rfc8 12.Rc1 Rab8 13.Re1 a6 14.a4 Qd8 15.Nd5 Nd7 16.Re2 e6 17.Ne3 Nc5 18.Nxc6 bxc6 19.Bxg7 Kxg7 20.Rb1 a5 21.f3 Rb7 22.Rd2 Rd7 23.Qc1 Rb8 24.Qc3+ Qf6 25.Qc2 h5 26.Nf1 Qe5 27.Rdd1 Rdb7 28.Nd2 Kg8 29.h3 Qd4+ 30.Kh2 Qf2 31.Rf1 Qe2 32.Rfe1 Qd3 33.Qxd3 Nxd3 34.Red1 Nc5 35.Nf1 Rd7 36.Nd2 Kf8 37.f4 Ke7 38.Re1 Rdb7 39.Re3 Nxa4 40.Ra1 Nc5 41.Ra3 a4 42.bxa4 Ra7 43.a5 Rba8 44.e5 Rxa5 45.exd6+ Kxd6 46.Rac3 Ra2 47.Nf3 Rf2 48.Rc1 Raa2 49.Rg1 f6 50.Kh1 Rac2 51.Nh4 Rxf4 52.Nxg6 Rfxc4 53.Rf3 f5 54.Rd1+ Kc7 55.Kh2 Ra4 56.Ne5 h4 57.Ng6 Kb6 58.Rb1+ Kc7 59.Re1 Rb4 60.Rfe3 Rcc4 61.Ne5 Re4 62.Nf3 Rxe3 63.Rxe3 Kd6 64.Rc3 Kd5 65.Rc1 Kd6 66.Rd1+ Kc7 67.Ne5 Re4 68.Nf7 e5 69.Rc1 Nd3 70.Rc3 Nf4 71.Rc5 Re2 72.Nxe5 Rxg2+ 73.Kh1 Kd6 74.Rxc6+ Kxe5 75.Rc5+ Kf6 76.Rxf5+ Kg6 77.Rxf4 Ra2 78.Rxh4 Kg5 79.Rg4+ Kh5 80.Rg2 Ra1+ 81.Kh2 Ra3 82.Rg3 Ra7 83.Rg2 Rb7 84.Rg4 Rc7 85.Kg3 Rc3+ 86.Kh2 Rb3 87.Rg2 Rb4 88.Rg3 Rb1 89.Rg2 Rb8 90.Rf2 Rc8 91.Rg2 Kh4 92.Rg4+ Kh5 93.Rg2 Ra8 94.Rg4 Ra7 95.Rg2 Re7 96.Rg4 Re3 97.Rg2 Re6 98.Rg4 Rb6 99.Rg2 Kh6 100.Rg4 Kh7 101.Rg2 Rc6 102.Rf2 Rc3 103.Rg2 Rd3 104.Rg3 Rd2+ 105.Rg2 Rd7 106.h4 Re7 107.Kh3 Kh6 108.Rg3 Re2 109.Rg4 Re1 110.Rg3 Rh1+ 111.Kg4 Ra1 112.Rf3 Ra4+ 113.Rf4 Ra1 114.Rf6+ Kg7 115.Rf5 Rg1+ 116.Kh5 Rh1 117.Rg5+ Kh7 118.Kg4 Rh2 119.Rh5+ Kg7 120.Rg5+ Kf6 121.Rf5+ Ke6 122.Kg5 Rg2+ 123.Kh6 1-0
2026.07.28 Titled Tue 28th Jul 2026
3500006 GM Obregon Rivero, J (2468) GM Jankovic, A (2560) 1-0
1.Nf3 d6 2.g3 e5 3.Bg2 f5 4.O-O Nf6 5.c4 Be7 6.Nc3 O-O 7.b4 c6 8.a4 Na6 9.b5 Nc7 10.c5 Bd7 11.cxd6 Bxd6 12.d4 e4 13.Ne5 Be8 14.bxc6 bxc6 15.Ba3 Ncd5 16.Nxd5 cxd5 17.Bh3 g6 18.Qb3 Rb8 19.Qa2 Kg7 20.Rfc1 a5 21.Bxd6 Qxd6 22.e3 Rb4 23.Qc2 Kh6 24.Bf1 Ng4 25.Nxg4+ fxg4 26.Qc5 Qf6 27.Rc2 Bxa4 28.Rd2 Qd8 29.Rda2 Bb3 30.Rxa5 Qf6 31.Qxb4 Qxf2+ 32.Kh1 Bc4 33.Bg2 Rf5 34.Qe7 Qxe3 35.Ra7 Qxd4 36.Qxh7+ Kg5 37.Qh4# 1-0
2026.07.28 Titled Tue 28th Jul 2026
3499501 GM Obregon Rivero, J (2468) FM ABDULRAHEEM, Abdulrahman Akintoye (2364) 1-0
1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O g6 5.d3 Bg7 6.Nbd2 O-O 7.c4 a5 8.b3 a4 9.Rb1 axb3 10.axb3 Ra2 11.b4 Na6 12.Qb3 Rxd2 13.Bxd2 dxc4 14.Qxc4 Be6 15.Qc2 Nc7 16.Ng5 Bg4 17.Bc3 Nb5 18.Ba1 Na3 19.Qd2 Nxb1 20.Rxb1 Nd5 21.Bxg7 Kxg7 22.b5 e6 23.Ne4 e5 24.bxc6 bxc6 25.Rc1 Bd7 26.Qb2 f6 27.Qb7 Qc8 28.Qa7 Kg8 29.Nd6 Qd8 30.Bxd5+ cxd5 31.Rc7 1-0
2026.06.10 19th American Continental
2290926 GM Obregon Rivero, J (2446) GM Cori, J (2613) 1-0
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 d6 8.Be2 O-O 9.O-O Bd7 10.Nc2 Rc8 11.f3 Na5 12.b3 Ng4 13.Bd2 Ne5 14.Nd5 e6 15.Bxa5 b6 16.Nxb6 axb6 17.Bb4 f5 18.Bxd6 Re8 19.exf5 gxf5 20.Qd2 Nf7 21.Rad1 Bc6 22.Bg3 Qf6 23.Qd4 Qg6 24.Qxb6 f4 25.Bd3 Qg5 26.Be1 Bf8 27.h4 Qg7 28.Kh1 Bc5 29.Qa5 Ne5 30.Qc3 Kh8 31.Rd2 Be7 32.Re2 Bf6 33.Be4 Bxe4 34.Rxe4 Nxc4 35.Qd3 Rg8 36.Qe2 Nd6 37.Rxf4 Nf5 38.Rg4 Qe7 39.g3 1-0
2026.06.09 19th American Continental
2290879 GM Fier, A (2553) GM Obregon Rivero, J (2446) 1-0
1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nf6 6.d4 Be7 7.Bd3 O-O 8.h3 a6 9.O-O b5 10.a4 b4 11.Ne2 Re8 12.Ng3 Bf8 13.a5 Bb7 14.c4 bxc3 15.bxc3 c5 16.c4 cxd4 17.Nxd4 Nbd7 18.Bc2 Rc8 19.Ndf5 Qc7 20.Bb2 Qxc4 21.Ba4 Red8 22.Bxd7 Nxd7 23.Nh6+ Kh8 24.Qh5 Re8 25.Rfd1 f6 26.Nf7+ Kg8 27.Nxd6 Bxd6 28.Rxd6 Ne5 29.Rad1 Qf7 30.Bxe5 Qxh5 31.Nxh5 Rxe5 32.Rd8+ Rxd8 33.Rxd8+ Kf7 34.Rd7+ Kf8 35.Nxf6 Bc6 36.Rc7 Bb5 37.Ng4 Re1+ 38.Kh2 Ra1 39.Ne3 Rxa5 40.Nf5 Be8 41.g4 Bg6 42.Nd4 Re5 43.Ra7 Re4 44.Nc6 Re2 45.Kg3 Re6 46.Ra8+ Be8 47.Nb4 Rb6 48.Nd5 Rc6 49.Kf4 Rc5 50.Ke5 a5 51.f4 a4 52.f5 Rc1 53.Nf4 Re1+ 54.Kd4 Rd1+ 55.Ke3 Ke7 56.Nd3 Rh1 57.Ra7+ Kf6 58.Nf2 Re1+ 59.Kd4 Bc6 60.Ra6 Rc1 61.Nd3 Rc2 62.Nb4 Rd2+ 63.Ke3 Rd6 64.Rxc6 Rxc6 65.Nxc6 a3 66.Nb4 Ke5 67.Kf3 h6 68.Ke3 g6 69.fxg6 Kf6 70.Kf4 Kxg6 71.h4 Kf6 72.Na2 Ke6 73.g5 Kf7 74.Kf5 hxg5 75.hxg5 1-0
2026.06.08 19th American Continental
2290818 GM Obregon Rivero, J (2446) IM Martinez Ramirez, L (2395) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Ba7 7.O-O Nc6 8.Qg4 Qf6 9.N1d2 h5 10.Qe2 d6 11.Nc4 e5 12.Be3 Nge7 13.Bxa7 Rxa7 14.Qe3 O-O 15.Rad1 b5 16.Nca5 Rd7 17.c4 b4 18.Nxc6 Nxc6 19.Be2 h4 20.Qb6 d5 21.c5 d4 22.Na5 Nxa5 23.Qxa5 h3 24.Qxb4 Bb7 25.f3 Qg5 26.Rf2 f5 27.c6 fxe4 28.cxb7 Rdd8 29.Qb3+ Kh8 30.fxe4 d3 31.Rxd3 Qc1+ 32.Bf1 1-0
2026.06.07 19th American Continental
2283722 IM Jimenez Garcia, Emmanuel (2349) GM Obregon Rivero, J (2446) 1-0
1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e3 Bb4 5.Qc2 Bxc3 6.Qxc3 Qe7 7.a3 d5 8.d4 exd4 9.Nxd4 Nxd4 10.Qxd4 c5 11.Qh4 O-O 12.cxd5 Rd8 13.Bd2 Rxd5 14.Bc3 Bf5 15.Bc4 Rd6 16.O-O Qe4 17.Qg3 Rad8 18.Rad1 Rxd1 19.Bxf6 g6 20.Bxd8 Rxd8 21.Qc7 Rd7 22.Qxc5 b6 23.Qc8+ Kg7 24.Bb5 Rd6 25.Qc3+ Kg8 26.f3 Qc2 27.Qxc2 Bxc2 28.g4 Bb3 29.Rf2 g5 30.Kg2 Rd5 31.Bc6 Rd3 32.f4 h6 33.Kf3 Bd1+ 34.Ke4 Rd6 35.Bd5 Bxg4 36.Ke5 Rd7 37.fxg5 hxg5 38.h4 Kg7 39.hxg5 Re7+ 40.Kd6 Rd7+ 41.Kc6 Re7 42.e4 Bh5 43.Kd6 Re8 44.Rc2 Kg6 45.Rc7 Kxg5 46.Rxa7 f5 47.exf5 Kxf5 48.Bf7 Bxf7 49.Rxf7+ Ke4 50.Rb7 Rc8 51.Rxb6 Rc1 52.a4 Ra1 53.Rb4+ Kf5 54.Rb5+ Kf6 55.a5 Rd1+ 1-0
2026.06.06 19th American Continental
2283673 GM Obregon Rivero, J (2446) GM Galaviz Medina, Sion Radamantys (2513) 1/2-1/2
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.g3 d5 7.exd5 exd5 8.Bg2 Nf6 9.O-O Be7 10.b3 O-O 11.Bb2 Bc5 12.Na4 Ba7 13.Nxc6 bxc6 14.Bd4 Re8 15.Bxa7 Rxa7 16.Qd4 Rae7 17.c4 a5 18.Rad1 Bg4 19.f3 Be6 20.Nc3 Qb8 21.cxd5 Nxd5 22.f4 Rd7 1/2-1/2
2026.06.05 19th American Continental
2283563 GM Shankland, Sam (2647) GM Obregon Rivero, J (2446) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 d6 5.O-O Nf6 6.exf5 a6 7.Ba4 Bxf5 8.d4 b5 9.Bb3 exd4 10.Re1+ Be7 11.Bg5 Kf8 12.a4 h6 13.Bh4 g5 14.Bg3 Rh7 15.h4 Bg4 16.axb5 axb5 17.Rxa8 Qxa8 18.Qd3 Nb4 19.Qxb5 Bxf3 20.gxf3 gxh4 21.Bxh4 Rg7+ 22.Kf1 Nbd5 23.Nd2 Qc8 24.Bxd5 Nxd5 25.Qxd5 Qh3+ 26.Ke2 Bxh4 27.Qa8+ Kf7 28.Kd1 Be7 29.Qd5+ Kf8 30.Qxd4 Qf5 31.Re4 Bg5 32.c3 Re7 33.b4 d5 34.Qc5 Qd7 35.Re5 Qa4+ 36.Ke2 Qa6+ 37.c4 dxc4 38.Nxc4 Qa2+ 39.Kf1 Qb1+ 40.Kg2 Qg6 41.Kh3 Qh5+ 42.Kg2 Qg6 1/2-1/2
2026.06.05 19th American Continental
2283625 GM Obregon Rivero, J (2446) IM Sandoval Mercado, Carlos (2422) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Nc6 5.d4 cxd4 6.Nxd4 Nf6 7.Nc3 g6 8.h3 Nxd4 9.Bxd7+ Qxd7 10.Qxd4 Bg7 11.Be3 O-O 12.Qd3 Rfc8 13.O-O Qe6 14.b3 Nd7 15.Bd4 Bxd4 16.Qxd4 Qe5 17.Qd2 Nf6 18.f4 Qc5+ 19.Kh2 b5 20.Nxb5 Nxe4 21.Qe2 d5 22.Rac1 Nd6 23.b4 Qb6 24.Nc3 e6 25.cxd5 Qxb4 26.Qf3 Qb7 27.Rb1 Qc7 28.Rfc1 Qd7 29.dxe6 Qxe6 30.Re1 Qc4 31.Nd5 Kg7 32.Rbc1 Qxa2 33.Nc7 Rab8 34.Qc3+ Kg8 35.Qe5 Rb2 36.Rg1 Nc4 37.Ne6 f6 38.Qxf6 Rb7 39.Rgd1 Qb2 40.Rd8+ Rxd8 41.Qxd8+ Kf7 42.Ng5+ 1-0
2026.06.04 19th American Continental
2283501 IM Noboa Silva, Kevin (2398) GM Obregon Rivero, J (2446) 0-1
1.d4 d6 2.e4 Nf6 3.Nc3 e5 4.Nge2 c6 5.g3 b5 6.Bg2 b4 7.dxe5 dxe5 8.Qxd8+ Kxd8 9.Nd1 a5 10.f3 Nbd7 11.Be3 Bc5 12.Nc1 Ke7 13.Bf1 Rd8 14.Bc4 Ne8 15.Nd3 Bd4 16.Bxd4 exd4 17.a3 Nd6 18.Bb3 Ba6 19.N1f2 a4 20.Ba2 bxa3 21.bxa3 Nb5 22.Nb4 Bb7 23.O-O Nxa3 24.Bxf7 c5 25.Nd5+ Bxd5 26.Bxd5 Nxc2 27.Bxa8 Nxa1 28.Bc6 Nb3 29.Nd3 a3 30.Bd5 Rb8 31.Rf2 Na5 32.Ra2 c4 33.Rxa3 cxd3 34.Rxd3 Ne5 35.Rd1 Rb2 36.Rf1 d3 37.f4 Ng4 38.Ra1 Ne3 39.Rxa5 d2 40.Ra7+ Kd6 41.Ra6+ Kc5 42.Ra5+ Kb4 0-1
2026.06.03 19th American Continental
2283388 FM Avila Rodriguez, Joshua Adrian (2274) GM Obregon Rivero, J (2446) 0-1
1.c4 e5 2.g3 Nc6 3.Bg2 Bc5 4.Nc3 a6 5.e3 d6 6.Nge2 Ba7 7.a3 h5 8.h4 Nf6 9.b3 Bf5 10.d3 Ng4 11.Nd5 Rb8 12.f3 Nf6 13.e4 Be6 14.Be3 Bxd5 15.Bxa7 Nxa7 16.exd5 c6 17.dxc6 Nxc6 18.d4 Qb6 19.O-O exd4 20.Kh1 O-O 21.Ra2 d5 22.c5 Qxc5 23.b4 Qc4 24.Rd2 Rfe8 25.Nxd4 Re3 26.Nc2 Re7 27.Nd4 Nxd4 28.Rxd4 Qa2 29.Qa1 Qc2 30.Qb1 Rc8 31.Qxc2 Rxc2 32.Rfd1 Kf8 33.R4d3 Ree2 34.Bf1 Rf2 35.Kg1 Ke7 36.Bh3 Kd6 37.Bf1 Ra2 38.Bh3 Rfc2 39.Bf1 Rab2 40.Bh3 b6 41.Bf1 a5 42.bxa5 bxa5 43.g4 hxg4 44.fxg4 Rc5 45.Bg2 Nxg4 46.Rxd5+ Rxd5 47.Rxd5+ Ke6 48.Rd3 Rb1+ 49.Bf1 Ne5 50.Rg3 g6 51.Kf2 a4 52.Re3 Rb2+ 53.Ke1 Kd5 54.Be2 Kd4 55.Rg3 Rb3 56.Kf2 f5 57.Bd1 Rb2+ 58.Kf1 f4 59.Rg1 Ke3 60.Rg2 Rxg2 61.Kxg2 f3+ 62.Kg3 f2 63.Kg2 Nc4 64.Bc2 Ke2 65.Bd3+ Kxd3 66.Kxf2 Nxa3 0-1
2026.06.03 19th American Continental
2283446 GM Obregon Rivero, J (2446) IM Plotkin, Mark (2360) 1-0
1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nf6 5.Be2 O-O 6.Be3 c5 7.d5 e6 8.Nf3 exd5 9.cxd5 b5 10.e5 dxe5 11.Bxc5 Re8 12.Bxb5 e4 13.Nd2 Bg4 14.Qa4 Nbd7 15.Be3 Nb6 16.Qb3 Bd7 17.Bc6 Rb8 18.Bf4 Rc8 19.O-O Bxc6 20.dxc6 Rxc6 21.Rad1 Qc8 22.Nb5 Qg4 23.Bg3 Nbd5 24.Nc4 Qg5 25.Nbd6 Re6 26.Qb5 Rcxd6 27.Bxd6 h5 28.Qb8+ Re8 29.Qxa7 Nf4 30.Bxf4 Qxf4 31.Nd6 Ng4 32.g3 Qf3 33.Nxe8 h4 34.Nd6 e3 35.Qxf7+ 1-0
2026.06.02 19th American Continental
2283327 GM Obregon Rivero, J (2446) CM Toro Castaneda, Elizabeth (2030) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Nb3 d5 7.Bg5 Be6 8.Bxf6 gxf6 9.exd5 Qxd5 10.Qxd5 Bxd5 11.Nc3 Be6 12.Bb5+ Nd7 13.O-O-O O-O-O 14.Nd5 Rg8 15.g3 Rg6 16.Bc4 Nc5 17.Nxc5 Bxc5 18.Bb3 Rh6 19.Rd3 Kb8 20.Nf4 Rxd3 21.Nxd3 Bd4 22.Bxe6 fxe6 23.Kd2 Kc7 24.c3 Bb6 25.Ke2 Kd7 26.a4 Ke7 27.b4 f5 28.Nxe5 Bc7 29.f4 Kf6 30.Nf3 e5 31.fxe5+ Bxe5 32.Rc1 f4 33.g4 Ke6 34.Kd3 Bc7 35.Re1+ Kd6 36.h4 Rg6 37.g5 Rg8 38.Re5 Rd8 39.Ke4 1-0
2026.04.04 LXXI Mexican Open 2026
2230640 IM Torres Rosas, L (2302) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 e5 6.Nf3 O-O 7.O-O Nc6 8.d5 Ne7 9.b4 a5 10.Ba3 Nd7 11.bxa5 f5 12.Bb4 Nc5 13.Nd2 Na6 14.Ba3 c5 15.dxc6 bxc6 16.Nb3 Rf6 17.Qd2 c5 18.Rfd1 Qf8 19.Nd5 Re6 20.Bf3 Nxd5 21.exf5 e4 22.fxe6 Nc3 23.Bg4 Nxd1 24.Rxd1 Be5 25.Qd5 Nc7 26.Qxe4 Bxe6 27.Bxe6+ Nxe6 28.Bb2 Re8 29.Bxe5 dxe5 30.Rd7 Qf6 31.a6 Rf8 32.f3 Ng5 33.Qd5+ Kh8 34.a7 Nh3+ 35.gxh3 Qg5+ 36.Kf1 Qf5 1-0
2026.04.03 LXXI Mexican Open 2026
2230598 GM Obregon Rivero, J (2463) Magana Morales, Roberto (2006) 1-0
1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.g3 Be7 5.Bg2 Ne4 6.O-O f5 7.Nc3 c6 8.Ne5 Nd7 9.Bf4 g5 10.e3 h5 11.Nxd7 Bxd7 12.Be5 Bf6 13.Nxe4 dxe4 14.Qb3 b6 15.f3 exf3 16.Bxf3 g4 17.Bg2 h4 18.Rad1 Qe7 19.Qc3 Rh6 20.e4 hxg3 21.hxg3 fxe4 22.Qe3 Bg5 23.Qxe4 O-O-O 24.Rf2 Qh7 25.Qe2 Rg8 26.c5 Kb7 27.b4 a6 28.a4 Bd8 29.Be4 Qe7 30.b5 a5 31.Rdf1 Qe8 32.bxc6+ Bxc6 33.Rf7+ Be7 34.Qb5 Rh1+ 35.Bxh1 1-0
2026.04.03 LXXI Mexican Open 2026
2230614 FM Lopez Raygoza, Luis Albert (2283) GM Obregon Rivero, J (2463) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.Bb5 Qc7 4.O-O a6 5.Bxc6 Qxc6 6.Re1 e6 7.c4 d6 8.a4 Nf6 9.d4 Be7 10.d5 Qc7 11.dxe6 Bxe6 12.b3 Nd7 13.Bg5 f6 14.Bh4 g5 15.Bg3 h5 16.h4 Ne5 17.Nc3 Bg4 18.Nd5 Qd8 19.Bxe5 fxe5 20.Qd3 gxh4 21.b4 cxb4 22.c5 Rc8 23.Nxe7 Kxe7 24.Nxh4 dxc5 25.Qg3 Rg8 26.Qxe5+ Kf7 27.Nf5 Rc6 28.Rac1 Bxf5 29.Qxf5+ Qf6 30.Qxh5+ Qg6 31.Qd5+ Ke7 32.g3 Rd8 33.Qe5+ Qe6 34.Qg7+ Qf7 35.Qe5+ Qe6 36.Rxc5 Qxe5 37.Rxe5+ Kf6 38.Rf5+ Ke6 39.Rb1 Rd4 1/2-1/2
2026.04.02 LXXI Mexican Open 2026
2230553 GM Obregon Rivero, J (2463) Hernandez Torres, Paulo De Jesus (1980) 1-0
1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.e3 c5 5.d4 Nc6 6.a3 a6 7.dxc5 Bxc5 8.b4 Ba7 9.Bb2 O-O 10.Qc2 d4 11.exd4 Nxd4 12.Nxd4 Qxd4 13.Nb5 Qxf2+ 14.Qxf2 Bxf2+ 15.Kxf2 axb5 16.Bxf6 gxf6 17.cxb5 Bd7 18.Be2 Rfc8 19.Rhd1 Be8 20.a4 Rc2 21.Rdb1 Kg7 22.Ke1 f5 23.a5 Kf6 24.Rc1 Rac8 25.Kd1 Rxe2 26.Kxe2 Bxb5+ 27.Kf2 Rd8 28.Rc5 Bc6 29.b5 Be4 30.Ra2 Rg8 31.g3 h5 32.a6 bxa6 33.bxa6 h4 34.a7 hxg3+ 35.hxg3 Rh8 36.Ra3 Rh2+ 37.Ke1 Rh8 38.Rb5 Rh3 39.Rb8 f4 40.a8=Q Bxa8 41.Rbxa8 fxg3 42.Kf1 e5 43.Rf3+ Ke6 44.Ra6+ Kd5 45.Rxf7 1-0
2026.04.02 LXXI Mexican Open 2026
2230568 IM Otero Acosta, D (2269) GM Obregon Rivero, J (2463) 1/2-1/2
1.d4 g6 2.c4 Bg7 3.Nc3 c5 4.d5 d6 5.e4 Bxc3+ 6.bxc3 e5 7.f4 Qh4+ 8.g3 Qe7 9.Nf3 exf4 10.Bxf4 Nf6 11.Bd3 Bh3 12.Qe2 Nbd7 13.e5 dxe5 14.Nxe5 O-O 15.O-O-O Nxe5 16.Qxe5 Qxe5 17.Bxe5 Ng4 18.Bd6 Nf2 19.Bxc5 Nxd1 20.Rxd1 Rfe8 21.Kd2 Rad8 22.a4 a6 23.a5 h5 24.Rb1 Rd7 25.Rb6 Bg4 26.Bd4 Bf3 27.d6 Bc6 28.c5 Bg2 1/2-1/2
2026.04.01 LXXI Mexican Open 2026
2230517 CM Garcia de Dios, Jose Antonio (2257) GM Obregon Rivero, J (2463) 1-0
1.d4 d6 2.Nf3 Nf6 3.c4 g6 4.g3 Bg7 5.Bg2 O-O 6.Nc3 c6 7.O-O Qa5 8.e4 Bg4 9.h3 Bxf3 10.Bxf3 Nbd7 11.Rb1 c5 12.d5 a6 13.Bd2 b5 14.Nxb5 Qxa2 15.Ra1 Qxc4 16.Be2 Qxe4 17.Ra4 Qxa4 18.Qxa4 axb5 19.Qc2 c4 20.h4 Nxd5 21.Bf3 e6 22.Bc3 Nxc3 23.Bxa8 Ne2+ 24.Qxe2 Rxa8 25.Qd2 d5 26.Qb4 Bf8 27.Qxb5 Nc5 28.h5 Nb3 29.Qb7 Ra2 30.hxg6 hxg6 31.Kg2 Nc5 32.Qc8 Ra7 33.Rh1 Nd7 34.Qd8 Rb7 35.Ra1 Kg7 36.Qc8 Rxb2 37.Qxd7 Bc5 38.Qc8 Rxf2+ 39.Kh3 Bd4 40.Ra8 Kh7 41.Qg8+ Kh6 42.Rf8 c3 43.Rxf7 Rxf7 44.Qxf7 Be3 45.Qxe6 d4 46.Qe4 Kg5 47.Kg2 Kf6 48.Kf3 Kg5 49.Qe5+ Kh6 50.Qh8+ Kg5 51.Ke4 1-0
2026.03.31 LXXI Mexican Open 2026
2230496 GM Obregon Rivero, J (2463) CM Hernandez Elizondo, C (1973) 1-0
1.Nf3 c6 2.g3 d5 3.Bg2 Bg4 4.d4 Nd7 5.O-O Ngf6 6.c4 e6 7.Qb3 Qb6 8.Nc3 Be7 9.c5 Qa6 10.Re1 b6 11.cxb6 Qxb6 12.Qd1 Bb4 13.h3 Bxf3 14.Bxf3 O-O 15.a3 Bxc3 16.bxc3 e5 17.a4 Rfe8 18.a5 Qc7 19.Qa4 Rab8 20.c4 exd4 21.Bf4 Ne5 22.cxd5 c5 23.Rec1 Rbc8 24.Bg2 Qd6 25.e4 h6 26.Qa3 g5 27.Bd2 Ng6 28.Re1 Qe5 29.Rac1 c4 30.Bb4 Red8 31.Bc5 c3 32.Qb4 d3 33.Bd4 d2 34.Bxe5 dxe1=Q+ 35.Rxe1 Nxe5 36.Qd4 Nfd7 37.f4 Rc4 38.Qe3 Ng6 39.Bf1 Rc5 40.e5 c2 41.e6 Rxd5 42.exf7+ Kg7 43.Qc3+ Nf6 44.Re6 Rf5 45.Qxc2 Rdd5 46.Bd3 Rxf4 1-0
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221082 GM Obregon Rivero, J (2463) Lai, Duc Minh (2126) 0-1
1.Nf3 g6 2.c4 c5 3.Nc3 Bg7 4.g3 Nc6 5.Bg2 d6 6.d3 Bf5 7.h3 e5 8.Be3 h6 9.Qd2 Qd7 10.Nd5 Nge7 11.Nxe7 Nxe7 12.g4 Be6 13.Qc2 O-O 14.Qc1 Kh7 15.g5 h5 16.Nd2 Nf5 17.Ne4 Rab8 18.Nc3 a6 19.a4 Nh4 20.Bd5 Bxh3 21.Qd2 Ng2+ 22.Kd1 Nxe3+ 23.Qxe3 Be6 24.Bxe6 fxe6 25.Ne4 Rf5 26.Kc2 a5 27.b3 b6 28.Ng3 Rf4 29.Nxh5 gxh5 30.Rxh5+ Kg6 31.Rah1 Qf7 32.Qh3 Qf5 33.Rh6+ Bxh6 34.Qh5+ Kg7 35.Qxh6+ Kf7 36.f3 Rg8 37.g6+ Qxg6 38.Qh3 Rf5 39.Qh4 Qf6 40.Qe4 Rg7 41.Qb7+ Kg6 42.Qc8 Qf7 43.Qd8 Rg5 44.Qxd6 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221095 IM Flores Quillas, Diego Saul Rodri (2421) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.Bc4 Nf6 4.Nc3 Nc6 5.h3 e6 6.O-O Be7 7.Re1 O-O 8.d4 cxd4 9.Nxd4 a6 10.Nxc6 bxc6 11.Bd3 e5 12.f4 exf4 13.Bxf4 Nd7 14.Bc4 Qb6+ 15.Kh1 Qxb2 16.Qd2 Ne5 17.Bb3 Qa3 18.Rad1 a5 19.Re2 a4 20.Bxe5 axb3 0-1
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219576 GM Obregon Rivero, J (2463) CM Mirzhanov, Arlan (1888) 1-0
1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Nbd2 Nf6 6.Bg2 Be7 7.O-O O-O 8.e5 Nd7 9.Re1 Qc7 10.Qe2 b5 11.Nf1 a5 12.h4 h6 13.Bf4 b4 14.Ne3 Ba6 15.Nxd5 exd5 16.e6 Bd6 17.Bxd6 Qxd6 18.exd7 Qxd7 19.Ne5 Nxe5 20.Qxe5 Rad8 21.Qh5 Bb7 22.Re5 Rfe8 23.Rae1 Rxe5 24.Qxe5 Kf8 25.c3 Re8 26.Qxe8+ Qxe8 27.Rxe8+ Kxe8 28.d4 cxd4 29.cxb4 axb4 30.Kf1 Ba6+ 31.Ke1 Bc4 32.b3 Bd3 33.Bxd5 f6 34.Kd2 Bf5 35.f3 Kd7 36.Be4 Be6 37.Kd3 f5 38.Ba8 g5 39.hxg5 hxg5 40.f4 Kd6 41.Kxd4 gxf4 42.gxf4 Bf7 43.Bf3 Bg8 44.Be2 Bf7 45.Bc4 Bh5 46.Bd3 Bf7 47.Bc4 Kc6 48.Bxf7 Kb5 49.Bg6 Ka5 50.Bxf5 Kb5 51.Bd3+ Kb6 52.f5 Kc6 53.f6 Kd6 54.Kc4 Ke6 55.Kxb4 Kxf6 56.a4 Ke6 57.a5 Kd6 58.a6 Kc6 59.Ka5 Kc7 60.b4 Kb8 61.b5 Ka8 62.b6 Kb8 63.a7+ Ka8 64.Be4# 1-0
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2220878 FM Lopez del Alamo, An (2125) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nb3 g6 7.Be2 Bg7 8.O-O O-O 9.Bg5 b6 10.f4 Bb7 11.Bf3 Nd7 12.Qd2 Rc8 13.Rad1 Nc5 14.Kh1 Ne6 15.Bh4 Ned4 16.Nxd4 Nxd4 17.Be2 Nxe2 18.Qxe2 Bxc3 19.bxc3 Rxc3 20.f5 f6 21.fxg6 hxg6 22.Qg4 Qe8 23.Rd2 Qf7 24.Rdf2 Kg7 25.Bg3 Rc4 26.Rf4 Rxc2 27.h4 Rh8 28.R4f2 Rxf2 29.Rxf2 Qc4 30.Kh2 Qxe4 31.Qd1 Qd5 32.Re2 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221135 IM Mahdavi, Reza (2490) GM Obregon Rivero, J (2463) 0-1
1.b3 Nf6 2.Bb2 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 c5 6.Nf3 Nc6 7.O-O d6 8.d4 cxd4 9.Nxd4 Qb6 10.Nc2 Be6 11.Qc1 Rfc8 12.Nc3 Rab8 13.Rb1 a6 14.Ne3 Qa5 15.Ned5 b5 16.Nxf6+ Bxf6 17.cxb5 Nd4 18.Qd2 Nxb5 19.Ne4 Qxd2 20.Nxd2 Rc2 21.Bxf6 exf6 22.Ne4 f5 23.Ng5 Nc3 24.Rbe1 Nxe2+ 25.Kh1 Rxa2 26.Rd1 Rb6 27.Rfe1 Bxb3 28.Rd3 Bc4 29.Re3 Nd4 30.Kg1 h6 31.Nf3 Nxf3+ 32.Bxf3 Be6 33.h4 h5 34.Rc1 a5 35.Rec3 a4 36.Rc7 Ra6 37.Rb7 a3 38.Re1 Rb2 39.Rc7 a2 40.Rcc1 Rab6 41.Ra1 Rb1 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2220893 GM Ohanyan, Emin (2481) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f4 d6 6.Nf3 e5 7.dxe5 dxe5 8.Qxd8 Rxd8 9.fxe5 Ng4 10.Nd5 Na6 11.Bf4 Re8 12.c5 Be6 13.Bxa6 Bxd5 14.exd5 bxa6 15.O-O-O Nxe5 16.Rhe1 Nxf3 17.gxf3 Bf8 18.Rxe8 Rxe8 19.Bxc7 Bxc5 20.d6 1-0
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219872 GM Klekowski, M (2460) GM Obregon Rivero, J (2463) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 c5 6.O-O Nc6 7.e3 b6 8.Qe2 Bb7 9.Rd1 Qc7 10.c4 e5 11.Nc3 Rfe8 12.d3 a6 13.a3 d6 14.Rab1 Rad8 15.Ba1 Qb8 16.b4 Nd4 17.exd4 exd4 18.Ne4 Nxe4 19.dxe4 Bxe4 20.Rbc1 Qa8 21.Re1 d3 22.Qe3 Bxf3 23.Qxf3 d2 24.Red1 Qxf3 25.Bxf3 dxc1=Q 26.Rxc1 Bxa1 27.Rxa1 b5 28.Rc1 Re5 29.Kg2 cxb4 30.axb4 Rc8 31.c5 dxc5 32.Bb7 Rc7 33.Bxa6 c4 34.Rc3 Rd5 35.h4 f5 36.Rc2 Kf7 37.Kf3 Ra7 38.Bc8 Rd8 39.Bxf5 gxf5 40.Kf4 Rc7 41.Ke3 c3 42.f3 Rd2 43.Rc1 Rd5 44.Rc2 Rd2 45.Rc1 Rb2 46.g4 c2 47.Kd3 Rb1 48.Rxc2 Rxc2 49.Kxc2 Rxb4 50.g5 Rf4 51.Kc3 Kg6 52.Kd3 Kh5 53.Ke3 Rxh4 54.f4 Kg6 55.Kf3 Rg4 56.Ke3 b4 57.Kf3 b3 58.Ke3 b2 59.Kf3 b1=Q 60.Ke3 Qe4+ 61.Kf2 Rxf4+ 62.Kg1 1-0
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221161 GM Obregon Rivero, J (2463) GM Vakhidov, J (2506) 0-1
1.Nf3 g6 2.d4 Nf6 3.e3 Bg7 4.Be2 O-O 5.O-O d5 6.c4 c5 7.Nc3 cxd4 8.Nxd4 dxc4 9.Bxc4 a6 10.a4 Qc7 11.Ba2 e5 12.Nde2 Nc6 13.e4 Rd8 14.Nd5 Nxd5 15.Bxd5 Be6 16.Nc3 Nb4 17.Qb3 Nxd5 18.exd5 Bf5 19.Be3 Bd3 20.Bb6 Qc4 21.Qxc4 Bxc4 22.Bxd8 Bxf1 23.Rxf1 Rxd8 24.Rd1 f5 25.f3 Bf8 26.Kf1 Bd6 27.Ke2 Rc8 28.Rc1 Kf7 29.Na2 Rd8 30.Rc4 Kf6 31.b4 Ke7 32.Nc3 Kd7 33.g4 Rg8 34.h3 Be7 35.b5 h5 36.b6 Bd6 37.Kd3 e4+ 38.fxe4 fxg4 39.hxg4 h4 40.e5 Bxe5 41.Ne4 h3 42.Nc5+ Kd6 43.Nxb7+ Kxd5 44.Rc5+ Ke6 45.Rc1 h2 46.Nc5+ Kd5 47.Nxa6 Rh8 48.Rh1 Rh3+ 49.Ke2 Rb3 50.Nc7+ Ke4 0-1
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219630 GM Obregon Rivero, J (2463) GM Pranesh, M (2633) 1/2-1/2
1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 Bf5 5.Bc4 e6 6.O-O Nc6 7.exd6 Bxd6 8.Re1 O-O 9.c3 Nce7 10.Nbd2 c5 11.Ne4 Bxe4 12.Rxe4 Qc7 13.Qe2 cxd4 14.Rxd4 Nf5 15.Rd1 Nf4 16.Bxf4 Bxf4 17.g3 Bd6 18.Rd2 Rfd8 19.Rad1 Bf8 20.Rxd8 Rxd8 21.Rxd8 Qxd8 22.Bxe6 Nd6 23.Bb3 a5 24.a4 g6 25.Qd3 Qb6 26.Qd5 Bg7 27.Ng5 Qc7 28.h4 h6 29.Nf3 Bf6 30.Kg2 Kg7 31.h5 g5 32.Ne1 Nc8 33.Nc2 Nd6 34.Ne3 Kf8 35.Ng4 Bg7 36.Ne3 Bf6 37.Bc2 Qb6 38.Bb3 Qc7 1/2-1/2
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219393 WGM Mikhailova, I (2166) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Nxd4 10.Bxd4 a5 11.Rc1 Bd7 12.Qd2 Bc6 13.f3 Nd7 14.Rfd1 Bxd4+ 15.Qxd4 a4 16.Nd5 e5 17.Qe3 Bxd5 18.cxd5 Qa5 19.Qc3 Qxc3 20.Rxc3 Rfc8 21.Rdc1 Rxc3 22.Rxc3 Nc5 23.Kf2 b5 24.Ke3 b4 25.Rc1 Kf8 26.Bb5 Ke7 27.Bc6 Rb8 28.g4 f5 29.g5 fxe4 30.fxe4 b3 31.a3 Rf8 32.Rc4 Rf1 33.Bxa4 Rb1 34.Kd2 Rxb2+ 35.Kc3 Rc2+ 36.Kb4 Rxh2 37.Bxb3 Rb2 38.Rc3 Nxe4 39.Re3 Nc5 40.a4 Kd7 41.a5 Kc7 42.Ka3 Rxb3+ 43.Rxb3 Nxb3 44.Kxb3 Kb7 45.Kb4 Ka6 46.Ka4 e4 47.Kb4 e3 48.Kc3 Kxa5 49.Kd3 Kb5 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221189 GM Obregon Rivero, J (2463) GM Rustemov, A (2525) 1-0
1.Nf3 d5 2.g3 c6 3.Bg2 Bf5 4.O-O e6 5.d4 Nf6 6.c4 h6 7.Nc3 Nbd7 8.Qb3 Qb6 9.c5 Qa6 10.Re1 b6 11.cxb6 axb6 12.Nd2 Be7 13.e4 Bg6 14.exd5 cxd5 15.Nb5 Rc8 16.Bf1 Qb7 17.Nf3 O-O 18.Bf4 Ne4 19.Rac1 Rxc1 20.Rxc1 Rc8 21.Nc7 Rf8 22.Bb5 Ndf6 23.Ne5 Bf5 24.Ba6 Qb8 25.Nc6 g5 26.Nxe7+ Kg7 27.Nc6 gxf4 28.Nxb8 Rxb8 29.Bd3 Rc8 30.f3 Nd2 31.Qd1 Bxd3 32.Nxe6+ fxe6 33.Rxc8 Nxf3+ 34.Qxf3 fxg3 35.Qxd3 gxh2+ 36.Kxh2 Ne4 37.Qf3 1-0
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2220958 GM Obregon Rivero, J (2463) WIM Nguyen Hong Anh (2010) 0-1
1.Nf3 Nf6 2.g3 d5 3.Bg2 g6 4.O-O Bg7 5.c4 O-O 6.cxd5 Nxd5 7.Nc3 c6 8.Qb3 Na6 9.d3 Nac7 10.Bd2 b6 11.Rac1 Bb7 12.Rfd1 Qd7 13.Ne4 c5 14.h4 Qb5 15.Qxb5 Nxb5 16.Nc3 Nd6 17.Ng5 e6 18.Nxd5 exd5 19.b4 Rac8 20.bxc5 bxc5 21.Nh3 c4 22.Bb4 Rfd8 23.Bxd6 Rxd6 24.dxc4 Bh6 25.Rb1 Ba6 26.Bxd5 Kf8 27.Kg2 Bxc4 28.Bxc4 Rxd1 29.Rxd1 Rxc4 30.a3 Rc2 31.Kf3 Ra2 32.Rd3 Bc1 33.Ng5 h6 34.Ne4 Bxa3 35.Rd7 Bb4 36.Rb7 a5 37.Nf6 Ra3+ 38.e3 Rc3 39.Nd7+ Ke8 40.Ne5 Rc2 41.Nxf7 Be1 42.Nd6+ Kd8 43.Nf7+ Ke8 44.Nd6+ Kf8 45.Ne4 a4 46.Ra7 Rc4 47.Nd6 Rb4 48.e4 Rb3+ 49.Ke2 a3 50.Kxe1 Rb1+ 51.Ke2 Rb2+ 52.Kf3 a2 53.e5 Rb3+ 54.Kg2 Rb5 55.e6 Re5 56.Ra8+ Ke7 57.Rxa2 Kxd6 58.Rd2+ Kxe6 59.Rd3 Kf6 60.Re3 Kg7 61.Rf3 Re6 62.Re3 Rf6 63.Re7+ Rf7 64.Re3 Rf6 65.Rf3 g5 66.Re3 Rf5 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2220960 GM Obregon Rivero, J (2463) CM Li, Aiden Linyuan (2112) 1-0
1.Nf3 c6 2.g3 d6 3.Bg2 Nf6 4.O-O g6 5.c4 Bg7 6.Nc3 O-O 7.b3 Nbd7 8.Bb2 Re8 9.Rc1 Nf8 10.d4 Qc7 11.d5 a6 12.Qd2 c5 13.e4 e5 14.dxe6 Bxe6 15.Ng5 Bd7 16.Nd5 Nxd5 17.exd5 Bxb2 18.Qxb2 b5 19.Ne4 Rxe4 20.Bxe4 Re8 21.Rfe1 bxc4 22.bxc4 Rb8 23.Qf6 Bh3 24.Bg2 Bf5 25.Re7 Qxe7 26.Qxe7 Rb6 27.Qd8 Rb2 28.Qxd6 Rxa2 29.Qxc5 Nd7 30.Qd4 Ra4 31.d6 Ra5 32.c5 Rb5 33.c6 Nf8 34.d7 Ne6 35.d8=Q+ Nxd8 36.Qxd8+ Kg7 37.c7 Rb6 38.Qd4+ Rf6 39.Rc6 Be6 40.c8=Q h5 41.Rxe6 h4 42.Qxf6+ Kh7 43.Qch8# 1-0
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219954 GM Obregon Rivero, J (2463) IM Fiorito, Joaquin (2433) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Qf6 6.d3 Bg4 7.h3 Bxf3 8.Qxf3 Qxf3 9.gxf3 Ne7 10.f4 exf4 11.Bxf4 O-O-O 12.Nd2 Ng6 13.Bg3 Bc5 14.Kg2 Rhf8 15.Nf3 f6 16.Rad1 Bd6 17.Nh4 Nf4+ 18.Bxf4 Bxf4 19.Rfe1 c5 20.b3 g6 21.Kf3 Be5 22.Kg2 b5 23.Nf3 Bc3 24.Re2 Rfe8 25.Nh2 Kb7 26.f4 Kb6 27.Nf3 Ka5 28.e5 fxe5 29.Nxe5 Kb4 30.a4 Ka3 31.axb5 axb5 32.Kf3 Rf8 33.Re4 Kb2 34.d4 Rxd4 35.Rdxd4 cxd4 36.Re2 Rf5 37.Nd3+ Ka3 38.Re7 Ka2 39.Rxc7 Kb1 40.Rxh7 Kxc2 41.Ke4 Rf8 0-1
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219469 GM Sjugirov, S (2599) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.h3 d6 6.Be3 c5 7.Nf3 cxd4 8.Nxd4 Nc6 9.Be2 Bd7 10.Nc2 Be6 11.O-O Nd7 12.Nd4 Nxd4 13.Bxd4 Bxd4 14.Qxd4 a5 15.b3 Qb6 16.Qd2 Nc5 17.Rab1 Rfe8 18.Kh1 Qb4 19.f4 f6 20.Qe3 a4 21.bxa4 Qa3 22.e5 dxe5 23.fxe5 f5 24.Bf3 Nxa4 25.Rb3 Qc5 26.Nd5 Qxe3 27.Rxe3 Rac8 28.Rb1 Nc5 29.Rb6 Kf7 30.h4 Nd7 31.Rxb7 Rxc4 32.Nc7 Rc1+ 33.Kh2 Rb8 34.Nxe6 Rxb7 35.Nd8+ Ke8 36.Nxb7 1-0
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221021 IM Estrada Nieto, J (2161) GM Obregon Rivero, J (2463) 0-1
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Ng5 e6 6.Bd3 Ngf6 7.Qe2 Nb6 8.N1f3 h6 9.Nxf7 Kxf7 10.Ne5+ Kg8 11.Ng6 Qxd4 12.O-O Bd7 13.Rd1 Qg4 14.f3 Qh5 15.Nxh8 Kxh8 16.Be3 Nbd5 17.Bd2 Bc5+ 18.Kh1 Bd6 19.g4 Qh3 20.c4 Nf4 21.Bxf4 Bxf4 22.Qg2 Qxg2+ 23.Kxg2 c5 24.Bg6 Kg8 25.Rd3 Kf8 26.Rad1 Ke7 27.h4 Bc6 28.Kh3 Rf8 29.a3 a5 30.Re1 Nd7 31.Be4 Ne5 32.Rc3 Bxe4 33.Rxe4 Kd6 34.Rb3 Kc7 35.Kg2 b6 36.Rc3 g5 37.h5 Rd8 38.Rc2 Rd3 39.Rce2 Kd6 40.Rf2 Nc6 41.Rfe2 e5 42.Rc2 Nd4 43.Rf2 Be3 44.Rf1 Ne6 0-1
2026.03.19 1st 3-0 Thu 19th Mar 2026
2219760 IM Mendes Aaron Reeve (2343) GM Obregon Rivero, J (2463) 0-1
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 c5 6.O-O Nc6 7.Rb1 d6 8.d3 b6 9.Ne5 dxe5 10.Bxc6 Rb8 11.a3 h6 12.b4 cxb4 13.axb4 Bb7 14.Bxb7 Rxb7 15.Be3 Qc8 16.f3 Rd7 17.Qb3 Ne8 18.Ra1 Nd6 19.Ra3 Nf5 20.Bf2 Nd4 21.Qa2 Qb7 22.Ra1 Ra8 23.Bxd4 exd4 24.Nb5 Qc6 25.Nxa7 Qe6 26.Qd2 h5 27.Nb5 Rxa3 28.Rxa3 Kh7 29.Ra2 Bh6 30.Qd1 Qh3 31.Qe1 h4 32.Ra1 Be3+ 33.Kh1 Qf5 34.g4 Qg5 35.h3 Bd2 36.Qf2 Bxb4 37.Ra7 Rxa7 38.Nxa7 e5 39.Nc6 Bd2 40.Kg2 Be3 41.Qf1 Kg7 42.Nb4 Qf4 43.Nd5 Qg3+ 44.Kh1 Bf4 45.Nxf4 Qxf4 46.Qf2 g5 47.Kg2 Qd2 48.Qe1 Qxe1 0-1
2026.03.19 3rd 3-0 Thu 19th Mar 2026
2221043 GM Obregon Rivero, J (2463) CM Novikov, E (2276) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.b3 O-O 6.Bb2 c5 7.e3 Nc6 8.c4 dxc4 9.bxc4 Qc7 10.Nc3 b6 11.Qe2 Bb7 12.Rad1 Rad8 13.d3 Qb8 14.Ne1 Ne5 15.f4 Bxg2 16.Nxg2 Nc6 17.f5 exf5 18.Rxf5 Qc8 19.Rff1 Qg4 20.Qxg4 Nxg4 21.h3 Nge5 22.Nd5 Rfe8 23.Bxe5 Nxe5 24.a4 Bf8 25.Kf2 Rd6 26.Ke2 Rb8 27.Rb1 g6 28.Rfd1 Bg7 29.Ne1 f5 30.Nf3 Nxf3 31.Kxf3 Kf7 32.Rb3 Bf6 33.Rdb1 Bd8 34.a5 Rb7 35.axb6 axb6 36.Rb5 h6 37.Rxc5 Ra7 38.Rcb5 Ra3 39.R5b3 Ra2 40.R3b2 Ra3 41.Ke2 g5 42.Rb3 Ra2+ 43.R1b2 Ra1 44.Nxb6 Rh1 45.Nd5 Rh2+ 46.Kf3 Rxh3 47.Kg2 g4 48.Rb7+ Kg6 49.Nf4+ 1-0
2026.03.12 3rd 3-0 Thu 12th Mar 2026
2213632 GM Obregon Rivero, J (2463) IM Mahdavi, Reza (2490) 0-1
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 b6 5.d4 Bb7 6.Be2 O-O 7.O-O e6 8.c4 d5 9.Nc3 Qe7 10.Rc1 Rd8 11.Qc2 Na6 12.Rfd1 Rac8 13.cxd5 exd5 14.Nb5 Nb4 15.Ba3 c5 16.Qb1 a6 17.Nc3 Ne4 18.Na4 Qd6 19.dxc5 bxc5 20.Rxc5 Nxc5 21.Bxb4 Nxa4 22.Bxd6 Nc3 23.Qd3 Nxd1 24.Be5 Bxe5 25.Nxe5 d4 26.exd4 Nc3 27.Bf1 Nxa2 28.h4 Nb4 29.Qe3 Nd5 30.Qf3 f6 31.Ng4 Kg7 32.Bc4 Rd6 33.Ne3 Rcd8 34.h5 R8d7 35.Qg3 Ne7 36.Ng4 Nf5 37.Qf4 Rxd4 38.h6+ Kf8 39.Qb8+ Ke7 40.Nxf6 Kxf6 41.Qf8+ Kg5 42.Qe8 Re7 43.Qb8 Re1+ 0-1
2026.03.12 3rd 3-0 Thu 12th Mar 2026
2213652 Guha, Eshan (2076) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 c5 5.d5 d6 6.Nc3 O-O 7.Nf3 e6 8.O-O exd5 9.cxd5 Re8 10.Re1 Bd7 11.a4 Ne4 12.Nxe4 Rxe4 13.Qc2 Rb4 14.Nd2 a5 15.Nc4 Ra6 16.Bd2 Be8 17.e4 Nd7 18.Bxb4 cxb4 19.Bf1 Nc5 20.e5 b3 21.Qc1 dxe5 22.Nxe5 Qxd5 23.Bxa6 Bxe5 24.Bc4 Qd6 25.Qe3 Nd7 26.Rad1 Qc7 27.Bxb3 Kg7 28.Rxd7 1-0
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213153 FM Deichmann, Esteban Horacio (2349) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Nc6 6.Be3 cxd4 7.cxd4 e6 8.Nc3 Qd8 9.Bc4 Be7 10.O-O O-O 11.Qe2 b6 12.Rad1 Nb4 13.Ne5 Bb7 14.f4 Rc8 15.f5 exf5 16.Rxf5 Nbd5 17.Rdf1 a6 18.Bd3 Nxc3 19.bxc3 Rxc3 20.Rg5 b5 21.Rf4 Rxd3 22.Qxd3 Nd5 23.Rh5 g6 24.Rg4 Nf6 25.Rg3 Nxh5 26.Nxg6 fxg6 27.Rxg6+ hxg6 28.Qxg6+ Ng7 29.h4 Qd6 30.h5 Qxg6 31.hxg6 Nf5 0-1
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2212974 GM Obregon Rivero, J (2463) WCM Atassi, Celine (1895) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 b6 6.Be2 Bb7 7.O-O d6 8.c4 Nbd7 9.Nc3 e5 10.Rc1 Qe7 11.Qc2 Rfe8 12.Rfd1 Nf8 13.dxe5 dxe5 14.Nd5 Nxd5 15.cxd5 Rac8 16.Bb5 Nd7 17.e4 f6 18.Bc6 Ba6 19.h3 Red8 20.a3 Nb8 21.b4 Nxc6 22.dxc6 Rxd1+ 23.Rxd1 Rd8 24.a4 Bc8 25.Qc4+ Kh8 26.Rxd8+ Qxd8 27.Qf7 Qf8 28.Qxc7 Be6 29.b5 h5 30.Qxa7 Qb4 31.Qb8+ Kh7 32.Qe8 Qc4 33.Bxe5 fxe5 34.Ng5+ Kh6 35.Nxe6 Qxe4 36.c7 1-0
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213232 GM Obregon Rivero, J (2463) Golsefidy, Sepehr (2062) 1-0
1.e4 e5 2.Nf3 d5 3.d4 dxe4 4.Nxe5 Nd7 5.Nc4 Ngf6 6.Nc3 Bd6 7.Nxd6+ cxd6 8.Bc4 Nb6 9.Bb3 d5 10.O-O O-O 11.f3 exf3 12.Qxf3 Bg4 13.Qg3 Bh5 14.Bg5 Bg6 15.Bxf6 gxf6 16.Qf4 Kg7 17.Rae1 Rc8 18.Re3 Nc4 19.Rh3 h5 20.Rg3 Qd6 21.Qxd6 Nxd6 22.Nxd5 Ne4 23.Rd3 Rfd8 24.Ne7 Nc5 25.Rc3 Nxb3 26.Rxc8 Rxc8 27.Nxc8 Nxd4 28.Nxa7 Bxc2 29.Kf2 Ne6 30.Rc1 Be4 31.g3 f5 32.Nb5 Kf6 33.Nd6 Bc6 34.b4 Ke5 35.Nxf7+ Kd4 36.Nd6 Ke5 37.Nc4+ Kf6 38.Na5 Be4 39.a4 Nd4 40.Rc7 Ke5 41.Nxb7 Ne6 42.Rh7 f4 43.Rxh5+ Kf6 44.Nc5 Bg6 45.Nxe6 fxg3+ 46.hxg3 Bxh5 47.Nd4 Be8 48.a5 Ke5 49.Ke3 Kd5 50.a6 Kd6 51.a7 Bf7 52.a8=Q Bd5 53.Qa5 Ke5 54.Qc5 Kf6 55.Qxd5 Kg6 56.Qf5+ Kh6 57.Qg4 Kh7 58.Kf4 Kh8 59.Kf5 Kh7 60.Kf6 Kh8 61.Qg7# 1-0
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213291 GM Henriquez Villagra, C (2603) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 Nc6 8.h4 h5 9.Qd2 d5 10.exd5 Nxd5 11.Nxd5 Qxd5 12.Bf3 Qc4 13.b3 Qa6 14.Be2 Qa5 15.Qxa5 Nxa5 16.O-O-O O-O 17.Nb5 Nc6 18.Bf3 Bg4 19.Bxg4 hxg4 20.Rd7 b6 21.Rhd1 Rfc8 22.c4 Bf6 23.Bg5 Bxg5+ 24.hxg5 a6 25.Na3 b5 26.Kb2 bxc4 27.Nxc4 Rab8 28.Ka3 Rb5 29.R1d5 e6 30.Rxb5 axb5 31.Nd6 b4+ 32.Kb2 Ne5 33.Nxc8 Nxd7 34.Ne7+ Kf8 35.Nc6 Nc5 36.Nxb4 Ne4 37.f3 gxf3 38.gxf3 Nxg5 39.f4 Ne4 40.Nd3 Ke7 41.a4 Kd6 42.b4 g5 43.fxg5 Nxg5 44.Kc3 Ne4+ 45.Kd4 f5 46.b5 Kc7 47.a5 Nd6 48.Kc5 Nb7+ 49.Kb4 Nd6 50.b6+ Kc6 51.Ne5+ Kb7 52.Kc5 Ne4+ 53.Kb5 Nd6+ 54.Kc5 Ne4+ 55.Kb4 Nd6 56.Nd3 Ne4 57.Nc5+ Nxc5 58.Kxc5 f4 59.a6+ Kxa6 60.Kc6 f3 61.b7 1-0
2026.03.12 3rd 3-0 Thu 12th Mar 2026
2213552 GM Erigaisi, Arjun (2745) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Ne2 Nc6 3.Nbc3 Nf6 4.d4 cxd4 5.Nxd4 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2 d5 9.Nxc6 bxc6 10.O-O-O O-O 11.Bh6 Be6 12.Bxg7 Kxg7 13.e5 Nd7 14.h4 Nxe5 15.h5 Rh8 16.h6+ Kg8 17.Qe3 Qc7 18.Rh4 Rb8 19.Ra4 Rb6 20.b3 Bd7 21.Rxa7 Qxa7 22.Qxe5 Qa3+ 23.Kb1 f6 24.Qc7 Rxb3+ 25.axb3 Kf7 26.Qxd7 Ra8 27.Na4 Rxa4 28.bxa4 Qb4+ 29.Kc1 Qa3+ 30.Kd2 Qb4+ 31.c3 Qb2+ 32.Ke1 1-0
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213064 GM Sjugirov, S (2599) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Nc6 7.Nf3 Ng4 8.Bg5 f6 9.Bd2 e5 10.d5 Ne7 11.h3 Nh6 12.g4 Nf7 13.Rg1 c6 14.h4 a6 15.h5 g5 16.Be3 c5 17.a3 a5 18.Nd2 Bd7 19.b3 b6 20.Nf1 Nh6 21.f3 Qc8 22.Ng3 Rd8 23.Nf5 Nhxf5 24.exf5 h6 25.Ne4 Be8 26.Kf2 Kf7 27.Qd2 Qc7 28.b4 Nc8 29.Rgb1 Bf8 30.bxc5 dxc5 31.Rb2 Nd6 32.Nc3 Rdb8 33.Rab1 Be7 34.Qd3 Bd8 35.Kg2 Qe7 36.Bd1 Bc7 37.Ba4 Bxa4 38.Nxa4 Qd7 39.Nc3 Qe8 40.Rb5 Qd7 41.Ne4 Nxb5 42.Rxb5 Bd6 43.Qb3 Qc7 44.Qa4 Ra7 45.Rb3 Rab7 46.Qc6 Ke7 47.Qb5 Qd7 48.Nc3 Qxb5 49.Nxb5 Kd7 50.Kf2 Ra8 51.Ke2 Rab8 52.Kd3 Ra8 53.Ke4 a4 54.Rb1 Ra5 55.Bd2 Rxb5 56.Rxb5 Kc7 57.Bc3 Ra7 58.Bd2 Ra8 59.Kd3 Ra7 60.Rb1 Ra8 61.Bc3 Rb8 62.Ke4 Ra8 63.Rb2 Rb8 64.Rb5 Rb7 65.Rb1 Rb8 66.Rb2 Rb7 67.f4 gxf4 68.g5 hxg5 69.h6 Rb8 70.h7 Rh8 71.Rh2 Kd7 72.Rh6 Ke7 73.Kf3 Bc7 74.Kg4 Bd8 75.Kh5 Kf7 76.Kg4 Be7 77.Bd2 Bf8 78.Rh3 Bd6 79.Rh6 Bf8 80.Rh3 Bd6 81.Rd3 Be7 82.Rf3 Bd6 83.Rh3 Be7 84.Rh6 Bd6 85.Rh3 Kg7 86.Rh6 Rxh7 87.Rg6+ Kf7 88.Bxf4 Rg7 89.Kg3 Rxg6 90.Kg2 Rg7 91.Bxe5 Rg8 92.Kf3 Re8 93.Kf2 1-0
2026.03.12 3rd 3-0 Thu 12th Mar 2026
2213579 GM Obregon Rivero, J (2463) CM Brown, Akeem (2061) 1-0
1.Nf3 Nf6 2.b3 e6 3.Bb2 Be7 4.e3 O-O 5.g3 b6 6.Bg2 Bb7 7.O-O d6 8.c4 Nbd7 9.Nc3 c5 10.d4 cxd4 11.exd4 a6 12.d5 e5 13.Nh4 Re8 14.Nf5 Bf8 15.f4 e4 16.b4 Rc8 17.Qb3 Qc7 18.Ne3 h5 19.Rac1 Ng4 20.Ncd1 Ndf6 21.h3 Nxe3 22.Nxe3 Qe7 23.Rce1 Rc7 24.Nf5 Qd8 25.g4 hxg4 26.hxg4 b5 27.g5 bxc4 28.Qh3 Nxd5 29.Bxe4 Rxe4 30.Rxe4 c3 31.Re2 f6 32.g6 Be7 33.Qh7+ Kf8 34.Qh8# 1-0
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213347 GM Obregon Rivero, J (2463) FM Hartge, Gedeon (2301) 0-1
1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4 h5 5.c4 e6 6.Nc3 Bb4 7.cxd5 cxd5 8.Ne2 Nc6 9.a3 Be7 10.g3 Nh6 11.Nf4 g6 12.Be2 Rc8 13.O-O Qb6 14.Bb5 a6 15.Ba4 Kf8 16.Bxc6 Qxc6 17.Be3 Kg7 18.Rc1 Ng4 19.Qd2 b5 20.Ne4 Qb6 21.Nc5 Nxe3 22.fxe3 Bxc5 23.dxc5 Rxc5 24.Rxc5 Qxc5 25.Rc1 Qb6 26.Qd4 Qb7 27.b4 Rc8 28.Rxc8 Qxc8 29.Qc5 Qa8 30.Kf2 Be4 31.Qe7 Bf5 32.Ne2 Qc6 33.Qc5 Qa8 34.Nd4 a5 35.Qxb5 axb4 36.axb4 Qa2+ 37.Qe2 Qb1 38.b5 Be4 39.Qd2 Qh1 40.Qb4 Qg2+ 41.Ke1 Qg1+ 42.Kd2 Qg2+ 43.Kc3 Qxg3 44.b6 Qe1+ 45.Kb3 Qb1+ 46.Ka4 Qa2+ 47.Kb5 Bd3+ 48.Kc5 Qa8 49.Qb2 Qc8+ 50.Kd6 Qd8+ 51.Kc6 Qc8+ 52.Kd6 Ba6 53.Nc6 Bb7 54.Qb5 Qb8+ 0-1
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213113 GM Obregon Rivero, J (2463) CM Taylor Rodriguez, Juan Jose (2152) 0-1
1.Nf3 d5 2.b3 Nf6 3.Bb2 g6 4.e3 Bg7 5.d4 O-O 6.Be2 c5 7.O-O Nc6 8.dxc5 Qa5 9.a3 Qxc5 10.b4 Qb6 11.Nbd2 Bf5 12.c4 Rad8 13.c5 Qc7 14.Nb3 a6 15.Nbd4 Ne4 16.Rc1 e5 17.Nxc6 bxc6 18.Bxa6 Bg4 19.Be2 d4 20.exd4 exd4 21.Qd3 Bf5 22.Qb3 d3 23.Bd1 Be6 24.Qa4 Ra8 25.Bxg7 Kxg7 26.Qxa8 Rxa8 27.a4 Bg4 28.b5 cxb5 29.axb5 Nxc5 30.Rc4 Bxf3 31.Bxf3 Rd8 32.g3 Qb6 33.Rb4 d2 34.Rb2 h5 35.Rd1 Qa5 36.b6 Na4 37.Ra2 Qxb6 38.Rxa4 Qb3 39.Rf4 g5 40.Rf5 g4 41.Be2 Re8 42.Kf1 Qb7 43.f3 gxf3 44.Rxf3 Qe4 45.Rxd2 Qb1+ 46.Kf2 Qb6+ 47.Kg2 Qg6 0-1
2026.03.12 2nd 3-0 Thu 12th Mar 2026
2213374 IM Baches Garcia, G (2305) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nd5 Bd7 7.Nxf6+ gxf6 8.Nxc6 bxc6 9.Bd3 Rg8 10.O-O Qb6 11.Qh5 h6 12.Kh1 a5 13.b3 a4 14.Be3 Qa5 15.Qe2 f5 16.f4 fxe4 17.Bxe4 Qb4 18.Bf3 Qc3 19.Rad1 e6 20.Bd4 Qa5 21.c4 Qf5 22.c5 d5 23.Qe3 Be7 24.b4 h5 25.a3 h4 26.h3 Rg3 27.Kh2 f6 28.Rde1 Kf7 29.Qd2 Rag8 30.Rf2 Qg6 31.Qe2 Ke8 32.Bh5 1-0
2026.03.10 Titled Tue 10th Mar 2026
2210081 Manukian, Ar (2059) GM Obregon Rivero, J (2463) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.Qe2 Nc6 7.c3 e6 8.d4 cxd4 9.cxd4 d5 10.e5 Ne4 11.Nbd2 Nxd2 12.Bxd2 Bb4 13.Rac1 Bxd2 14.Qxd2 O-O 15.Rc3 Rfc8 16.Rfc1 Rc7 17.h4 Rac8 18.h5 h6 19.g4 Ne7 20.Kg2 Rxc3 21.Rxc3 Rxc3 22.Qxc3 Nc6 23.Nd2 Qe7 24.Kg3 Qb4 25.Nb3 Qb5 26.Nc5 b6 27.Nd3 Qc4 28.f4 Nxd4 29.Qxc4 dxc4 30.Nb4 a5 31.Na6 Kf8 32.Kf2 Ke7 33.Ke3 Nc6 34.Nc7 Nb4 35.a3 Nd3 36.b3 Kd7 37.Nb5 Nb2 38.bxc4 Nxc4+ 39.Kd4 Nd2 40.Nd6 f6 41.exf6 gxf6 42.Nb5 Ke7 43.a4 Nf3+ 44.Ke3 Nh2 45.g5 fxg5 46.fxg5 hxg5 47.Na3 Kd6 48.Nc4+ Kd5 49.Nxb6+ Kc5 50.Nd7+ Kd6 51.Nf6 Ke7 52.Ne4 Ng4+ 53.Kd4 Nf6 54.Nxg5 Nxh5 55.Kc5 e5 56.Kb5 Ng3 57.Kxa5 Kf6 58.Nf3 e4 59.Ne1 Nf5 60.Kb6 Nd6 61.a5 Nc4+ 62.Kb5 Nxa5 63.Kxa5 Ke5 64.Kb4 Kd4 65.Kb3 Ke3 66.Kc2 Ke2 67.Ng2 Kf2 68.Nf4 Kf3 69.Nd5 e3 70.Nxe3 1/2-1/2
2026.03.10 Titled Tue 10th Mar 2026
2211631 FM Vakhlamov, I (2413) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.d4 cxd4 5.Qxd4 Nc6 6.Bb5 Bd7 7.Bxc6 Bxc6 8.Bg5 e6 9.O-O-O Be7 10.Rhe1 O-O 11.e5 dxe5 12.Nxe5 Qc7 13.Qc4 Rac8 14.Nxc6 bxc6 15.Ne4 Nd5 16.Bxe7 Qxe7 17.Qc5 Qh4 18.g3 Qxh2 19.c4 Qh6+ 20.f4 Nf6 21.Nd6 Rb8 22.Rd2 Qg6 23.Re3 Qh5 24.Qxc6 Rb6 25.Qf3 Qc5 26.Red3 Nd5 27.Kb1 Nb4 28.Rd4 Nc6 29.R4d3 Nb4 30.Rd4 Nc6 31.R4d3 h6 32.b3 Rfb8 33.Ka1 Nb4 34.Ne4 Qa5 35.Rd8+ Rxd8 36.Rxd8+ Kh7 37.Qe2 Qf5 38.Rd7 Ra6 39.a4 e5 40.Ng5+ Kg6 41.Rxf7 Qc2 42.Qxc2+ Nxc2+ 43.Kb2 hxg5 44.Rf8 Nd4 45.fxe5 Rb6 46.Kc3 Nxb3 47.Rd8 Nc5 48.a5 Na4+ 49.Kd4 Rb1 50.Rd6+ Kf5 51.c5 Rd1+ 52.Kc4 Rxd6 53.exd6 Ke6 54.Kb5 Nxc5 55.Kc6 1-0
2026.03.10 Titled Tue 10th Mar 2026
2211389 GM Obregon Rivero, J (2463) FM Vingris, Mikelis (2331) 1-0
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.c4 Bg7 5.Nc3 e5 6.O-O Nge7 7.Ne1 O-O 8.Nc2 d6 9.Ne3 Be6 10.Ned5 f5 11.d3 h6 12.a3 Qd7 13.b4 cxb4 14.axb4 f4 15.b5 Nd4 16.e3 fxe3 17.Nxe7+ Qxe7 18.Bxe3 Qd7 19.Bxd4 exd4 20.Nd5 Kh7 21.Re1 Bxd5 22.Bxd5 Rf6 23.Ra2 Raf8 24.f4 g5 25.f5 b6 26.Be6 Qb7 27.Qg4 Re8 28.Rea1 Re7 29.Re2 Qc7 30.Rae1 Bf8 31.Qh5 Qc5 32.Bd5 Rxe2 33.Rxe2 Qa3 34.Qe8 Rxf5 35.Qe4 Kg6 36.g4 Qc1+ 37.Re1 1-0
2026.03.10 Titled Tue 10th Mar 2026
2210672 WFM Sneha Halder (2101) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.h3 e5 7.d5 Nh5 8.g3 Qe8 9.Bg2 f5 10.Ng5 Nf6 11.Nb5 Na6 12.O-O f4 13.gxf4 exf4 14.e5 dxe5 15.d6 c6 16.d7 Qxd7 17.Nd6 h6 18.Nge4 Nxe4 19.Nxe4 Qe7 20.f3 Rd8 21.Qe1 Bf5 22.b3 Rd3 23.Nf2 Rd7 24.Bb2 Rad8 25.Rd1 Rxd1 26.Nxd1 Nc5 27.Qb4 b6 28.Nf2 Kf7 29.Re1 Nd3 30.Nxd3 Rxd3 31.Qxe7+ Kxe7 32.Bxe5 Bxe5 33.Rxe5+ Kd6 34.Re2 Kc5 35.Kf2 a5 36.Ke1 Re3 37.Rxe3 fxe3 38.f4 Kd4 39.Bxc6 Bxh3 40.Bf3 Bf5 41.a3 Bc2 42.b4 axb4 43.axb4 Kxc4 44.Ke2 Kd4 45.Ke1 Bd3 46.Bg4 Kc4 47.b5 Kxb5 48.Be6 Kc5 49.Bf7 Kd4 50.Be8 b5 51.Bf7 b4 52.Kd1 h5 53.Ke1 h4 54.Be6 Ke4 0-1
2026.03.10 Titled Tue 10th Mar 2026
2210178 GM Obregon Rivero, J (2463) FM Demchenko, Yaroslav (2303) 1-0
1.Nf3 d5 2.g3 e6 3.Bg2 Nf6 4.b3 Be7 5.Bb2 O-O 6.O-O b6 7.e3 Bb7 8.c4 c5 9.Nc3 Nc6 10.cxd5 Nxd5 11.Nxd5 Qxd5 12.Ne5 Qd6 13.d4 Qc7 14.Nxc6 Bxc6 15.Bxc6 Qxc6 16.dxc5 Bxc5 17.Qg4 f6 18.b4 Be7 19.b5 Qd5 20.Rfd1 Qf5 21.Qxf5 exf5 22.Rd5 Rfd8 23.Rxf5 Rd2 24.Bd4 Rc8 25.a4 Kf7 26.a5 Ke6 27.g4 g6 28.Rf3 Rcc2 29.axb6 axb6 30.Ra6 Bd8 31.Bxb6 1-0
2026.03.10 Titled Tue 10th Mar 2026
2211766 GM Obregon Rivero, J (2463) CM Avanesian, Artem (2134) 0-1
1.Nf3 g6 2.d4 Bg7 3.e3 c5 4.Be2 cxd4 5.Nxd4 d5 6.O-O Nc6 7.Nxc6 bxc6 8.c4 Nf6 9.Nc3 O-O 10.Qa4 Bb7 11.Rd1 Qc8 12.Qc2 Rd8 13.b3 e5 14.Bb2 d4 15.exd4 exd4 16.Na4 c5 17.Ba3 Ne4 18.Bd3 Nc3 19.Nxc5 Nxd1 20.Nxb7 Ne3 21.fxe3 Qxb7 22.e4 Qa6 23.Be7 Rd7 24.Bg5 Rc8 25.Rc1 Qa5 26.Bd2 Qh5 27.c5 Bh6 28.b4 Be3+ 29.Kh1 Qg5 30.Rd1 a5 31.a3 axb4 32.axb4 Rb7 33.c6 Rb6 34.b5 Rxb5 35.Bxb5 Qxb5 36.c7 Qe2 37.h3 Rxc7 38.Qa4 Bxd2 39.Qe8+ Kg7 40.Qe5+ Kh6 41.Rg1 Rc1 42.Rxc1 Bxc1 43.Qxd4 Be3 44.Qa1 Qf2 45.Qd1 Qg3 46.Qf1 Bf4 47.Kg1 f6 48.Qe2 Qe3+ 49.Qxe3 Bxe3+ 50.Kf1 Bd4 51.Ke2 Be5 52.Kf3 Kg5 53.g3 h5 54.h4+ Kh6 55.Kg2 g5 56.Kh3 g4+ 0-1
2026.03.10 Titled Tue 10th Mar 2026
2211026 GM Bryakin, M (2481) GM Obregon Rivero, J (2463) 1-0
1.b3 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 O-O 5.g3 c5 6.Bg2 Nc6 7.O-O d6 8.Nc3 Bd7 9.e3 e5 10.d4 Qe7 11.dxc5 dxc5 12.Nd5 Nxd5 13.cxd5 Nb4 14.a3 Na6 15.d6 Qe8 16.Ng5 Rb8 17.Qc2 h6 18.Ne4 Qe6 19.Nxc5 Nxc5 20.Qxc5 Qxb3 21.Bxe5 Rfc8 22.Qd4 Bxe5 23.Qxe5 Qe6 24.Qxe6 Bxe6 25.Rac1 b5 26.Rc7 Rxc7 27.dxc7 Rc8 28.Rc1 Bc4 29.a4 a6 30.Bb7 Rxc7 31.Bxa6 Rd7 32.Bxb5 Bxb5 33.axb5 Rb7 34.Rb1 Kf8 35.Kf1 Ke7 36.Ke2 Kd6 37.b6 Kc6 38.Kd3 Rd7+ 39.Ke4 Kb7 40.Rb2 Rd6 41.Ke5 Re6+ 42.Kd5 Rf6 43.f4 Re6 44.e4 Rc6 45.e5 Re6 46.g4 Rc6 47.f5 h5 48.e6 fxe6+ 49.fxe6 Rc1 50.gxh5 gxh5 51.e7 1-0
2026.03.10 Titled Tue 10th Mar 2026
2210778 GM Obregon Rivero, J (2463) WFM Nivedita V C (2028) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d6 6.Be2 Nbd7 7.O-O c5 8.c4 cxd4 9.Nxd4 a6 10.Nc3 Qc7 11.Rc1 Nc5 12.Qc2 Ne6 13.Nf3 b6 14.Rfd1 Bb7 15.Qd2 Nc5 16.Nd5 Nxd5 17.cxd5 Bxb2 18.Qxb2 Qd7 19.Qd4 a5 20.Qh4 Kg7 21.e4 Rac8 22.Nd4 Rc7 23.Bg4 Qd8 24.Nb5 Rd7 25.Bxd7 Qxd7 26.Nd4 Rc8 27.f3 b5 28.a3 Ba6 29.b4 axb4 30.axb4 Na4 31.Rxc8 Qxc8 32.Qxe7 Kg8 33.Qxd6 Nb2 34.Nc6 Qb7 35.Ra1 Qb6+ 36.Qc5 1-0
2026.03.10 Titled Tue 10th Mar 2026
2210529 CM Boutikos, Eleftherios (2091) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.O-O a6 8.a4 Be7 9.Be3 O-O 10.Qe2 Bd7 11.Nxc6 Bxc6 12.a5 Rc8 13.f3 Qc7 14.Bb6 Qb8 15.Rfd1 Nd7 16.Bd4 Rfd8 17.Qf2 Ne5 18.Ba7 Qa8 19.Bf1 Be8 20.Bb6 Rd7 21.Bd4 Nc6 22.Na4 Bd8 23.Bb6 Be7 24.Be3 Bd8 25.Bb6 Qb8 26.Bxd8 Rcxd8 27.Nb6 Rc7 28.Qg3 Re7 29.Nc4 Red7 30.Nb6 Re7 31.Nc4 Qc7 32.Rxd6 e5 33.Rxd8 Qxd8 34.Qf2 Rd7 35.c3 f6 36.Ne3 Rd2 37.Bc4+ Kh8 38.Qh4 Nxa5 39.Bf1 Qb6 40.Qe1 Nb3 41.Kh1 h6 42.Nc4 Qd8 43.Nxd2 Nxa1 44.Qc1 Bb5 45.Bxb5 axb5 46.h3 Qd3 47.b4 Nc2 48.Nb3 Ne3 49.Nc5 Qe2 50.Qg1 b6 51.Ne6 Nd1 52.Nd8 Nf2+ 53.Kh2 Qe3 54.Nf7+ Kg8 55.Nd6 Qf4+ 56.g3 Qd2 57.Nf5 Nxh3+ 58.Qg2 Qxg2+ 59.Kxg2 Ng5 60.Ne7+ Kf7 61.Nd5 Nxe4 62.Nxb6 Nxc3 63.Nd5 1-0
2026.03.10 Titled Tue 10th Mar 2026
2211307 GM Obregon Rivero, J (2463) IM Pribelszky, Bence (2396) 1/2-1/2
1.Nf3 c5 2.g3 d5 3.Bg2 Nc6 4.d4 Nf6 5.O-O e6 6.c4 dxc4 7.Qa4 Bd7 8.dxc5 Na5 9.Qa3 Rc8 10.b4 cxb3 11.axb3 Rxc5 12.b4 Rh5 13.Nd4 Nc6 14.Nxc6 bxc6 15.Qa4 Rb5 16.Bd2 c5 17.Na3 Rb8 18.Qxa7 cxb4 19.Nc4 Be7 20.Bf4 O-O 21.Bxb8 Qxb8 22.Qxb8 Rxb8 23.Rfb1 Bb5 24.Ne5 Nd5 25.Bxd5 exd5 26.Ra7 Bf6 27.Nd7 Bxd7 28.Rxd7 b3 29.Rxd5 b2 30.Rd2 g5 31.e3 Rc8 32.Rbxb2 Bxb2 33.Rxb2 Kg7 34.Kg2 Kg6 35.g4 h5 36.h3 hxg4 37.hxg4 Rc4 38.Kg3 Ra4 39.Rb6+ f6 40.Rb5 Rc4 41.Ra5 Rb4 42.Rd5 Ra4 43.Rd7 Rb4 44.Rd4 Rb1 45.Rc4 Rg1+ 46.Kf3 Ra1 47.Rc5 Ra2 48.Rd5 Ra4 49.Rd4 Ra2 50.Kg3 Rb2 51.Rd6 Rb3 52.Kg2 Ra3 53.e4 Kf7 54.f3 Ke7 55.Rd5 Ra2+ 56.Kg3 Ra3 57.Rf5 Ke6 58.e5 fxe5 59.Rxg5 e4 60.Rf5 e3 61.Rf8 Ke5 62.Re8+ Kd4 63.g5 Kd3 64.Kg4 e2 65.f4 Ra4 66.Rxe2 Kxe2 67.g6 Ke3 68.g7 Rxf4+ 69.Kh5 Rf5+ 70.Kh6 Rf6+ 71.Kh5 Rf5+ 72.Kg6 Rf1 73.g8=Q Rg1+ 74.Kf7 Rf1+ 75.Ke8 Re1 76.Qf7 Re2 77.Qe7+ Kd2 78.Qxe2+ Kxe2 1/2-1/2
2026.03.05 3rd 3-0 Thu 5th Mar 2026
2208592 CM Foerster-Yialamas, Lucas (2176) GM Obregon Rivero, J (2463) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 h6 10.Bh4 Nxe4 11.Nxe4 Qxh4 12.Nxc6 Bxc6 13.Nxd6+ Bxd6 14.Qxd6 Rd8 15.Qxd8+ Qxd8 16.Rxd8+ Kxd8 17.Bd3 g5 18.Rf1 Ke7 19.g3 f5 20.Kd2 Kf6 21.Ke3 h5 22.Be2 h4 23.Bf3 hxg3 24.Bxc6 bxc6 25.hxg3 Rh3 26.Kf3 gxf4 27.Kxf4 e5+ 28.Kf3 f4 29.Rg1 Kf5 30.Kf2 Rh2+ 31.Rg2 Rxg2+ 32.Kxg2 Kg4 33.gxf4 exf4 34.Kf2 f3 35.c4 Kf4 36.b4 Ke4 37.a4 Kd4 38.b5 cxb5 39.cxb5 axb5 40.axb5 Kc5 41.Kxf3 Kxb5 1/2-1/2
2026.03.05 3rd 3-0 Thu 5th Mar 2026
2208606 GM Obregon Rivero, J (2463) Smail, Benedict (2075) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 b6 6.Be2 Bb7 7.O-O d6 8.c4 Nbd7 9.Nc3 e5 10.d5 a5 11.a3 Nc5 12.b4 axb4 13.axb4 Nce4 14.Nb5 Qe7 15.Qc2 Ba6 16.Bd3 Bxb5 17.cxb5 Rxa1 18.Bxa1 Nxd5 19.Bxe4 Nxb4 20.Qb3 d5 21.Bxd5 Nxd5 22.Qxd5 Rd8 23.Qc4 e4 24.Nd4 Ra8 25.Nc6 Qd6 26.Bxg7 Kxg7 27.Qd4+ Qxd4 28.Nxd4 Kf6 29.g3 Ke5 30.Rc1 Ra7 31.Nc6+ 1-0
2026.03.05 3rd 3-0 Thu 5th Mar 2026
2208652 GM Rustemov, A (2525) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.c4 f5 5.Nc3 h5 6.h4 d6 7.g3 Nd7 8.Nh3 Nf6 9.Nf4 Bh6 10.Bg2 c6 11.Qd3 Qe7 12.e3 Kf8 13.O-O-O Kg7 14.Rhe1 Re8 15.Kb1 Ne4 16.Qc2 a6 17.a3 b5 18.cxb5 axb5 19.Nxe4 fxe4 20.Qxc6 Bg4 21.Rc1 b4 22.a4 Bd7 23.Qb7 Reb8 24.Qxe4 Bf5 25.Qxf5 gxf5 26.Bxa8 Rxa8 27.b3 Qe4+ 28.Kb2 Bxf4 29.gxf4 Qf3 30.Rc2 Kf6 31.Rg1 Rc8 32.Rgc1 Rg8 33.a5 Ra8 34.Ra1 Qd5 35.a6 Ra7 36.Rc4 Qb5 37.Ra4 Rxa6 38.Raxb4 Qa5 39.Ra4 Qd2+ 40.Rc2 Qd3 41.Rxa6 Qxa6 42.b4 Ke6 43.Kb3 Kd5 44.f3 Qd3+ 45.Rc3 Qd1+ 46.Ka3 Qa1+ 47.Kb3 Qd1+ 48.Ka3 Qxf3 49.b5 Qe2 50.Kb4 Qb2+ 51.Rb3 Qc2 52.Rc3 Qb1+ 53.Rb3 Qc1 54.Rc3 Qb1+ 55.Rb3 Qf1 56.Ka5 Qe1+ 57.Kb6 Qxh4 58.Kc7 Qe7+ 59.Kb6 Qd8+ 60.Kb7 h4 61.b6 h3 62.Rb2 Qd7+ 63.Ka6 Qa4+ 64.Kb7 Qc6+ 65.Kb8 Qe8+ 66.Ka7 Qa4+ 67.Kb7 Qd7+ 68.Ka8 Qc8+ 69.Ka7 Qd7+ 70.b7 Qa4+ 71.Kb8 Qe8+ 72.Ka7 1-0
2026.03.05 3rd 3-0 Thu 5th Mar 2026
2208684 GM Obregon Rivero, J (2463) IM Padmini, R (2354) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d5 6.Be2 c5 7.O-O Ne4 8.c4 Nc6 9.Qc1 cxd4 10.exd4 Bg4 11.Rd1 e6 12.h3 Bxf3 13.Bxf3 Ng5 14.Be2 dxc4 15.Bxc4 Nxd4 16.Na3 e5 17.Nb5 a6 18.Nxd4 exd4 19.Qf4 Ne6 20.Qe4 Qd7 21.Bxe6 Qxe6 22.Qxe6 fxe6 23.Bxd4 Rfd8 24.Bb6 Rd5 25.Rxd5 exd5 26.Rd1 d4 27.Rd2 Rc8 28.Bxd4 Rc1+ 29.Kh2 Bxd4 30.Rxd4 Rc2 31.Rd8+ Kg7 32.Rd7+ Kh6 33.Rxb7 Rxa2 34.f3 Rb2 35.Kg3 a5 36.Rb5 Kg7 37.h4 h5 38.Kh3 Kf6 39.g4 hxg4+ 40.fxg4 Rc2 41.Kg3 Rb2 42.Rb6+ Kg7 43.Kf4 a4 44.Kg5 Rxb3 45.Rxg6+ Kh7 46.Ra6 a3 47.h5 Rf3 48.Ra7+ Kg8 49.Kg6 Rb3 50.Ra8+ 1-0
2026.03.05 3rd 3-0 Thu 5th Mar 2026
2208715 IM Terry, R (2508) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.c3 h6 5.Bh4 O-O 6.Nbd2 d5 7.e3 b6 8.Be2 c5 9.O-O Nc6 10.a3 Bb7 11.h3 Nd7 12.b4 Re8 13.bxc5 bxc5 14.Rb1 Na5 15.Qa4 Bc6 16.Bb5 Bxb5 17.Rxb5 Nc6 18.Rfb1 Qc8 19.R5b2 e5 20.Bg3 exd4 21.exd4 cxd4 22.Nxd4 Nxd4 23.cxd4 Nb6 24.Qb4 Qf5 25.Nf3 Rac8 26.Be5 Rc2 27.Rxc2 Qxc2 28.Re1 Qc4 29.Qd6 Qb5 30.Qc7 Qd7 31.Qc3 f6 32.Bf4 Rxe1+ 33.Nxe1 Qf5 34.Nd3 Nc4 35.a4 Bf8 36.Bg3 Qe4 37.Nc5 Qe2 38.Qc1 Qd2 39.Qb1 f5 40.Ne6 Qb2 41.Qe1 Qd2 42.Qb1 Qb2 43.Qd3 Qc1+ 44.Qf1 1-0
2026.02.24 Titled Tue 24th Feb 2026
2200346 IM Reprintsev, A (2283) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.b3 e6 3.Bb2 Nc6 4.Nf3 Nf6 5.e5 Nd5 6.g3 Be7 7.c4 Nc7 8.Bg2 b6 9.d4 cxd4 10.Nxd4 Bb7 11.O-O Qc8 12.Qg4 O-O 13.Rd1 Nxe5 14.Qe2 f6 15.f4 Nf7 16.Nc3 Bxg2 17.Qxg2 Re8 18.Rd2 Rb8 19.Rad1 Bc5 20.Ne4 d5 21.Nxc5 bxc5 22.Nc6 Rb6 23.cxd5 exd5 24.Na5 Qa6 25.b4 Rxb4 26.Nb3 Qb6 27.Ba3 Rb5 28.Kh1 Nd6 29.Rxd5 Nxd5 30.Qxd5+ Nf7 31.Bxc5 Qb7 32.Qxb7 Rxb7 33.Rd2 h6 34.Kg2 Rd8 35.Re2 Rc7 36.g4 Rdc8 37.Bf2 Rc2 38.Rxc2 Rxc2 39.a4 Ra2 40.Nc5 Nd6 41.Kf3 Nc4 42.h4 Nb6 43.g5 hxg5 44.hxg5 fxg5 45.fxg5 Nxa4 46.Ne6 Ra3+ 47.Kg4 Nc3 48.Bd4 g6 49.Nf4 Kf7 50.Bh8 Ne4 51.Nd5 Ra4 52.Nc7 Nc5+ 53.Kf3 Ne6 54.Nb5 Nxg5+ 55.Ke3 Ne4 56.Bd4 a6 57.Nc7 Nd6 58.Bc5 Nf5+ 59.Kd3 g5 60.Nd5 g4 61.Ke2 Ra5 62.Nc7 Rxc5 63.Nxa6 Rc4 0-1
2026.02.24 Titled Tue 24th Feb 2026
2201123 IM Pham Le Thao Nguyen (2348) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 c5 5.c3 cxd4 6.cxd4 O-O 7.O-O d6 8.Nc3 Nc6 9.h3 Bd7 10.Be3 Qa5 11.d5 Nb4 12.Nh4 Rfc8 13.a3 Na6 14.Bd4 Qd8 15.Nf3 Nc5 16.Nd2 Ne8 17.Bxg7 Kxg7 18.Nde4 Nxe4 19.Nxe4 Qb6 20.Qd2 Rc7 21.Rac1 Rac8 22.Rxc7 Rxc7 23.Rc1 Bf5 24.Rxc7 Nxc7 25.Qc3+ f6 26.Nd2 Nb5 27.Qc4 Qc5 28.a4 Nc7 29.Qxc5 dxc5 30.a5 Nb5 31.e3 Kf8 32.Kf1 Bd3+ 33.Ke1 Nd6 34.Nb3 b6 35.axb6 axb6 36.Nc1 Bc4 37.e4 e5 38.dxe6 Ke7 39.Kd2 Kxe6 40.f4 Ba6 41.b3 Bb7 42.Ke3 Ke7 43.Ne2 f5 44.Nc3 b5 45.Bf3 fxe4 46.Nxe4 Nf5+ 47.Kf2 Nd4 48.Nd2 Bxf3 49.Nxf3 Nxb3 50.Ng5 h6 51.Nf3 Kf6 52.Ke3 Na5 53.Ne5 c4 54.Kd4 g5 55.Ng4+ Kg6 56.f5+ Kg7 57.Ne3 Nb3+ 58.Kc3 Kf6 59.Kb4 Nd4 60.Kc5 Nxf5 61.Ng4+ Kg6 62.Kxb5 Nxg3 63.Ne5+ Kf5 64.Nxc4 h5 65.Ne3+ Kf4 66.Nd5+ Kf3 0-1
2026.02.24 Titled Tue 24th Feb 2026
2200947 GM Obregon Rivero, J (2463) FM Bouska, Jiri (2334) 0-1
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.c4 O-O 6.b3 d4 7.e3 c5 8.exd4 cxd4 9.Ne5 Qc7 10.f4 Nbd7 11.Nd3 e5 12.fxe5 Nxe5 13.Nxe5 Qxe5 14.d3 Bg4 15.Bf3 Bxf3 16.Qxf3 Rfe8 17.Bf4 Qf5 18.Nd2 Bb4 19.Rad1 Qd7 20.Bg5 Ng4 21.Ne4 Ne3 22.Bxe3 dxe3 23.g4 Rad8 24.Qxe3 Qxg4+ 25.Qg3 Rxe4 26.dxe4 Bc5+ 27.Kg2 Qe2+ 28.Kh3 Rxd1 29.Rxd1 Qh5+ 30.Kg2 Qe2+ 31.Kh3 Qxd1 32.Qf4 h6 33.Qf5 Qd3+ 34.Kg2 Qe2+ 35.Kh3 Qe3+ 36.Kg2 g6 37.Qc8+ Kg7 0-1
2026.02.24 Titled Tue 24th Feb 2026
2200190 GM Obregon Rivero, J (2463) CM Yildiz, Ali Aras (1983) 1-0
1.Nf3 d5 2.g3 c5 3.Bg2 Nf6 4.O-O Nc6 5.d4 cxd4 6.Nxd4 e5 7.Nxc6 bxc6 8.c4 Be6 9.Nc3 Be7 10.Bg5 e4 11.Qa4 Qd7 12.Rfd1 O-O 13.Bxf6 Bxf6 14.Bxe4 Bxc3 15.bxc3 Qe7 16.cxd5 cxd5 17.Bf3 Rac8 18.Rd3 Rc4 19.Qa5 Rc5 20.Qa3 Rfc8 21.Rad1 h6 22.Qb4 Qf6 23.Bxd5 Bxd5 24.Rxd5 Rxc3 25.R5d2 R3c7 26.Qe4 g6 27.h4 h5 28.Kg2 Kg7 29.Rd7 Rxd7 30.Rxd7 Rc5 31.Rxa7 Re5 32.Qc4 Rf5 33.f4 Qb6 34.Re7 Rf6 35.a4 Qd6 36.Re3 Qd2 37.Qc3 Qa2 38.Qa3 Qd5+ 39.Kh2 Qd2 40.Qc3 Qd1 41.Re4 Qf1 42.Qf3 Qa1 43.Rc4 Qa2 44.Qd3 Re6 45.Re4 Rf6 46.Kg2 Rc6 47.Qd4+ Rf6 48.Qe5 Qc2 49.a5 Kg8 50.Qxf6 Qxe4+ 51.Kf2 Qd5 52.Qe5 Qa2 53.Qe8+ Kg7 54.Qe5+ Kh7 55.f5 Qc2 56.fxg6+ fxg6 57.a6 Qc6 58.Qe7+ Kg8 59.a7 Qb6+ 60.Kg2 Qc6+ 61.Kh2 Qa8 62.Qc7 Qf8 63.Qb8 Qxb8 64.axb8=Q+ Kf7 65.Qe5 Kg8 66.Qg5 Kf8 67.e4 Kf7 68.e5 Ke6 69.Qf6+ Kd5 70.Qxg6 Kxe5 71.Qxh5+ Kd4 72.Qg5 Kd3 73.h5 Ke2 74.h6 Kd1 75.h7 Kc2 76.h8=Q Kb1 77.Qe3 Ka2 78.Qa8+ Kb1 79.Qb7+ Kc2 80.Qc6+ Kd1 81.Qd5+ Kc2 82.Qec5+ Kb2 83.Qb7+ Ka2 84.Qca7# 1-0
2026.02.24 Titled Tue 24th Feb 2026
2199432 FM Hercegovac, Neven (2336) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Bb3 a6 8.Be3 Na5 9.f3 b5 10.Qe2 Qc7 11.O-O-O Nxb3+ 12.axb3 Be7 13.Kb1 b4 14.Na4 Nd7 15.h4 Nc5 16.h5 Bd7 17.Qc4 Rc8 18.Nxc5 dxc5 19.h6 g6 20.Qxa6 cxd4 21.Bxd4 Qxc2+ 22.Ka1 O-O 0-1
2026.02.24 Titled Tue 24th Feb 2026
2201244 GM Obregon Rivero, J (2463) CM Kaminskii, Daniil (2049) 0-1
1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg2 d6 6.d3 c6 7.h3 Qc7 8.Be3 Nbd7 9.Qd2 Re8 10.Bh6 a6 11.Bxg7 Kxg7 12.h4 h5 13.O-O b5 14.b3 Bb7 15.Rac1 b4 16.Nd1 c5 17.e4 e5 18.Ne3 Nh7 19.Nh2 Ndf8 20.f4 exf4 21.Rxf4 Ne6 22.Rf2 Nd4 23.Rcf1 Re7 24.Nf3 Nxf3+ 25.Bxf3 Kg8 26.g4 hxg4 27.Bxg4 Rf8 28.h5 Re5 29.hxg6 fxg6 30.Rxf8+ Nxf8 31.Qf2 Qe7 32.Qf3 Nh7 33.Rf2 Kg7 34.Rg2 Rg5 35.Rh2 Nf6 36.Qh3 Nh5 37.Kh1 Qf6 38.Bxh5 Rxh5 39.Qd7+ Kg8 40.Rxh5 Qf3+ 41.Kh2 Qxh5+ 42.Kg3 Qe5+ 43.Kg2 Qb2+ 44.Kf3 Qf6+ 45.Kg4 Ba8 46.Qe8+ Kg7 47.Qxa8 Qe6+ 48.Kg3 Qe5+ 49.Kf3 Qf6+ 50.Kg2 Qg5+ 51.Kf2 Qh4+ 52.Ke2 Qh2+ 53.Kf1 Qh1+ 54.Ke2 Qh2+ 55.Ke1 Qg3+ 56.Kd2 Qf2+ 57.Kd1 Qf3+ 58.Kd2 Qf2+ 59.Kd1 Qxe3 60.Qd5 Qd4 61.Qxd4+ cxd4 62.Ke2 Kf6 63.Kf3 g5 64.Kg3 a5 65.Kf3 Kg6 66.Kg4 Kf6 67.Kh5 g4 68.Kxg4 Ke5 69.Kg5 Ke6 70.Kf4 Kf6 71.Kg4 Ke6 72.Kg5 Ke5 73.Kg6 a4 74.bxa4 Ke6 75.a5 Kd7 76.a6 Kc6 77.Kf6 d5 78.exd5+ Kb6 79.Ke5 b3 80.axb3 Kc5 81.Ke4 Kb4 0-1
2026.02.24 Titled Tue 24th Feb 2026
2199985 FM Elci, Eren (2240) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bd3 g6 5.h3 Bg7 6.O-O O-O 7.Bc2 Nc6 8.a3 e5 9.d4 Qc7 10.d5 Ne7 11.c4 h6 12.Nc3 Nh7 13.Ne1 f5 14.exf5 gxf5 15.f3 Ng6 16.Be3 a6 17.Rc1 Qf7 18.Bf2 Kh8 19.Bb1 Rg8 20.Kh1 Nf4 21.Be3 Nh5 22.Bf2 Nf4 23.Be3 Ng6 24.Bf2 Nf6 25.b4 cxb4 26.axb4 Nf4 27.c5 Qh5 28.Bg3 Nxh3 29.Bh2 Nf4 30.Kg1 Qg5 31.Kh1 N6h5 32.Qd2 Ng3+ 33.Bxg3 Qxg3 34.Qf2 Qg5 35.Nd3 Nxd3 36.Bxd3 e4 37.fxe4 Be5 38.Qf3 fxe4 39.Qxe4 Qh5+ 40.Kg1 Qh2+ 41.Kf2 Qg3+ 42.Ke2 Bg4+ 43.Kd2 Rg7 44.Ne2 Qh4 45.Kc2 Qg5 46.Kb1 a5 47.b5 dxc5 48.Rc4 h5 49.Rxc5 Bd6 50.Rc2 Re7 51.Qd4+ Be5 52.Qc4 a4 53.Nc3 Rc8 54.Qb4 a3 55.Qxa3 Rxc3 56.Rxc3 Bxc3 57.Qxc3+ Kg8 58.d6 Qg7 59.Qc4+ Rf7 60.Rxf7 Qxf7 61.Qxf7+ Kxf7 62.Bg6+ 1-0
2026.02.24 Titled Tue 24th Feb 2026
2200767 GM Obregon Rivero, J (2463) CM Rojas Linares, Nicolas Gabriel (2068) 1-0
1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Nc3 d5 5.cxd5 Nxd5 6.h4 h6 7.Bg2 O-O 8.Qb3 Nb6 9.O-O Nc6 10.d3 Be6 11.Qc2 Bg4 12.Be3 Nb4 13.Qd2 N4d5 14.Bxh6 Nxc3 15.bxc3 Qd6 16.Bxg7 Kxg7 17.a4 f6 18.a5 Nd7 19.a6 bxa6 20.Qa2 Be6 21.Qxa6 Bd5 22.Nd4 Bxg2 23.Kxg2 Kf7 24.Qc4+ e6 25.Nb5 Qb6 26.Rfb1 Rfc8 27.Nd4 Qd6 28.Ra6 Nb6 29.Qc6 e5 30.Qxd6 cxd6 31.Nb5 Ke6 32.Nxa7 Nd5 33.c4 Nc3 34.Rbb6 Rd8 35.e3 Rd7 36.Nc6 Rxa6 37.Rxa6 f5 38.Ra3 Nb1 39.Rb3 Rc7 40.Nxe5 Nd2 41.Rb2 dxe5 42.Rxd2 Rc6 43.Ra2 Rc7 44.Ra6+ Kf7 45.Kf3 Rd7 46.Ke2 Rc7 47.f4 exf4 48.gxf4 Rb7 49.c5 Rb2+ 50.Kf3 Rh2 51.c6 Rxh4 52.c7 Rh3+ 53.Kg2 Rh8 54.Rc6 Rc8 55.Kf3 Ke7 56.Rxg6 1-0
2026.02.24 Titled Tue 24th Feb 2026
2199766 GM Obregon Rivero, J (2463) FM Arshpreet Singh (2312) 0-1
1.Nf3 Nf6 2.c4 e6 3.b3 b6 4.Bb2 Bb7 5.g3 Be7 6.Bg2 O-O 7.O-O c5 8.e3 d5 9.Nc3 dxc4 10.bxc4 Nc6 11.Qe2 Na5 12.d3 Nd7 13.Ne1 Bxg2 14.Nxg2 Bf6 15.f4 Nc6 16.Rad1 Re8 17.g4 h6 18.Rf3 e5 19.f5 e4 20.Nxe4 Bxb2 21.Qxb2 Nce5 22.Rf4 Qc7 23.Nc3 Nf6 24.Qe2 Rad8 25.h4 Qd7 26.g5 hxg5 27.hxg5 Nh7 28.Nd5 Nxg5 29.Qh5 f6 30.Kf2 Qf7 31.Qh4 Rxd5 32.cxd5 Qxd5 33.Qh5 Rd8 34.d4 Qxa2+ 35.Kg3 Nef7 36.dxc5 Rc8 37.Rfd4 bxc5 38.Rd7 Qb2 39.Qg4 Re8 40.Qc4 Qb8+ 41.Kf2 Qh2 42.Rd8 Nh3+ 43.Kf3 Ng5+ 44.Kf2 Rxd8 45.Rxd8+ Kh7 46.Qh4+ Qxh4+ 47.Nxh4 Nxd8 48.Ng2 Nc6 49.Nf4 Ne5 50.Ne6 Nxe6 51.fxe6 Nc6 52.Kf3 Ne7 53.Ke4 Kg6 54.Kd3 Kf5 55.Kc4 Kxe6 56.Kxc5 Ke5 0-1
2026.02.24 Titled Tue 24th Feb 2026
2200543 GM Obregon Rivero, J (2463) CM Petersen, Marcel (2278) 0-1
1.Nf3 g6 2.g3 Bg7 3.c4 e5 4.Nc3 Ne7 5.d3 O-O 6.h4 h6 7.Bd2 c6 8.Qc1 Kh7 9.h5 g5 10.Bxg5 hxg5 11.Nxg5+ Kg8 12.h6 Bf6 13.h7+ Kh8 14.Nce4 Ng6 15.c5 d5 16.cxd6 Bxg5 17.Nxg5 Qxd6 18.Qd2 Nd7 19.O-O-O Nf6 20.Kb1 Be6 21.Rh6 Ng4 22.Rh4 Nxf2 23.Rc1 Ng4 24.Rh5 Qd5 25.b3 a5 26.e4 Qd4 27.Be2 Qe3 28.Qxe3 Nxe3 29.Nxe6 fxe6 30.Rg5 Kxh7 31.Bh5 Rf6 32.Re1 Nf1 33.Rxg6 Raf8 34.Rxf6 Rxf6 35.Bg4 Nxg3 36.Rg1 Nf1 37.Kc1 Ne3 38.Bh3 Rf2 39.Bxe6 Ng2 40.Bf5+ Kh6 41.Rh1+ Kg5 42.Rh2 Kf4 43.Rh7 Ke3 44.Rxb7 Nf4 45.Rc7 Nxd3+ 46.Kb1 c5 47.a3 Kd4 48.Be6 Kc3 49.Ka1 Kc2 50.b4 axb4 51.axb4 Nxb4 52.Rxc5+ Kd3 53.Rc4 Nc2+ 54.Kb2 Nd4+ 55.Ka3 Kxe4 56.Kb4 Kd3 57.Bf5+ Ke3 58.Rc3+ Kf4 59.Rc5 Rb2+ 0-1
2026.02.24 Titled Tue 24th Feb 2026
2200555 CM Klys, Kacper (2215) GM Obregon Rivero, J (2463) 0-1
1.Nc3 c6 2.e4 d6 3.Qe2 Qc7 4.d4 e5 5.Nf3 Nf6 6.h3 Be7 7.g4 Nbd7 8.Bg2 b5 9.a3 a5 10.d5 Ba6 11.dxc6 Qxc6 12.g5 b4 13.Qe3 bxc3 14.gxf6 cxb2 15.Bxb2 Nxf6 16.Nd2 Qxc2 17.Bc3 Rc8 0-1
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196232 IM Terry, R (2508) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.Bg5 g6 3.Nd2 Bg7 4.c3 O-O 5.e4 d6 6.Ngf3 h6 7.Bh4 g5 8.Bg3 Nh5 9.Bd3 Nxg3 10.hxg3 c5 11.d5 e6 12.dxe6 Bxe6 13.Bc4 d5 14.exd5 Bxd5 15.O-O Nc6 16.Re1 a6 17.Qc2 b5 18.Bxd5 Qxd5 19.Ne4 Rfe8 20.g4 Ne5 21.Nxe5 Qxe5 22.Re2 Qf4 23.Rae1 Re5 24.f3 b4 25.Qd3 Re6 26.Qd5 Rae8 27.Qxc5 bxc3 28.bxc3 Be5 29.Kf1 Qh2 30.Qg1 Qh4 31.g3 Qh3+ 32.Qg2 Qxg2+ 33.Kxg2 Kg7 34.Nc5 Rc6 35.Rxe5 1-0
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196261 CM Brown, Akeem (2060) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 Ng4 7.Nxc6 bxc6 8.Bc1 Qb6 9.Qf3 g6 10.h3 Ne5 11.Qe3 Bg7 12.f4 Nd7 13.Qxb6 axb6 14.Bd2 O-O 15.Be2 Nc5 16.Bf3 b5 17.a3 b4 18.Nd1 b3 19.cxb3 Nxb3 20.Rb1 Ba6 21.Bc3 Bd3 22.Bxg7 Kxg7 23.Nc3 Bxb1 24.Nxb1 Rfb8 25.Rf1 Nd4 26.Rf2 Nxf3+ 27.gxf3 Rb3 28.Nc3 Rab8 29.Nd1 R3b5 30.Kd2 Rh5 31.Rh2 h6 32.Kc3 d5 33.a4 dxe4 34.fxe4 Rh4 35.a5 Rxf4 36.Ne3 Rxe4 37.Nc4 Re1 38.Rd2 Rc1+ 39.Kd4 Rd8+ 0-1
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196305 GM Obregon Rivero, J (2463) GM Zhigalko, S (2572) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 Bg5 12.Nc2 Ne7 13.a4 bxa4 14.Nce3 O-O 15.Rxa4 a5 16.Bc4 Bd7 17.Ra2 Bxe3 18.Nxe3 Bc6 19.Nd5 Bxd5 20.Bxd5 Rb8 21.O-O Kh8 22.b3 f5 23.exf5 Rxf5 24.Bc4 d5 25.Bd3 e4 26.Bc2 Qb6 27.Qd4 Qxd4 28.cxd4 Nc6 29.Rd1 Rf7 30.Rd2 Rb4 31.Bd1 g6 32.f3 Nxd4 33.fxe4 dxe4 34.Rxa5 e3 35.Rb2 e2 36.Bxe2 Rxb3 37.Bc4 Ne2+ 38.Bxe2 Rxb2 39.Bf3 Kg7 40.h3 Rb1+ 41.Kh2 Rb2 42.Kg3 Re7 43.Ra6 Rc2 44.Ra5 Rcc7 45.Ra6 Ra7 46.Rb6 Rf7 47.Rb5 Rfc7 48.Rb6 Ra5 49.Rb4 Rg5+ 50.Kh2 Rgc5 51.Rb3 Rc4 52.Rb5 Rc3 53.Rb6 Ra7 54.Rb5 Re3 55.Rb6 Re5 56.Kg3 Rf5 57.Kh2 Rfa5 58.Kg3 R5a6 59.Rb4 Ra4 60.Rb5 Rf7 61.h4 h5 62.Rb6 Rd4 63.Be2 Rff4 64.Rc6 Rxh4 65.Bf3 Rhf4 0-1
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196322 GM Obregon Rivero, J (2463) IM Herrera Ortiz, M (2187) 1-0
1.Nf3 Nf6 2.g3 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg2 d6 6.d3 c5 7.h3 Nc6 8.Be3 e5 9.Qd2 Re8 10.Bg5 Qa5 11.h4 Nd4 12.h5 Ne6 13.Bxf6 Bxf6 14.hxg6 fxg6 15.Qh6 Nf8 16.Kf1 Bg7 17.Qh4 Qd8 18.Ng5 h6 19.Bd5+ Be6 20.Nxe6 Nxe6 21.Qg4 Qf6 22.Ne4 Qf5 23.Qxf5 gxf5 24.Nxd6 Re7 25.Nxf5 Ree8 26.Nxh6+ Kf8 27.Nf5 Nd4 28.Nxd4 exd4 29.b3 Re5 30.Bxb7 Rd8 31.Be4 Rd6 32.Kg2 Rf6 33.Rh4 Rg5 34.Rb1 a5 35.a3 Rb6 36.f4 1-0
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196355 Amaya, Brayan Angel (1982) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.g3 c5 6.Bg2 cxd4 7.Nxd4 Nc6 8.O-O Qb6 9.Nc2 d6 10.b3 Be6 11.Bb2 Bxc4 12.Na4 Qa6 13.Re1 Be6 14.Nd4 Nxd4 15.Bxd4 Rac8 16.Qd2 Nd7 17.Bxg7 Kxg7 18.e4 Ne5 19.f4 Qd3 20.Rad1 Qxd2 21.Rxd2 Nc6 22.e5 dxe5 23.Bxc6 Rxc6 24.Rxe5 Rfc8 25.b4 R8c7 26.Nc5 Bh3 27.Rde2 b6 28.Nd3 e6 29.Kf2 Rc3 30.Ne1 Ra3 31.R5e3 Rcc3 32.Rxc3 Rxc3 33.Rd2 Rc4 34.Nf3 Rxb4 35.Ng5 Bf5 36.Rd7 Rb2+ 37.Ke3 Rxa2 38.Rxf7+ Kg8 39.Rxh7 b5 40.Rb7 a6 41.Kd4 Rxh2 42.Ke5 Kf8 43.Kf6 Ke8 44.Nf7 Rd2 45.Ne5 Kf8 46.Rb8+ 1-0
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196383 CM Li, Aiden Linyuan (2021) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Bd3 Nc6 6.Nxc6 bxc6 7.O-O g6 8.Qe2 Bg7 9.f4 O-O 10.h3 a5 11.Nc3 Ba6 12.Bxa6 Qb6+ 13.Be3 Qxa6 14.Qf2 a4 15.b3 Ng4 16.hxg4 Bxc3 17.Rad1 axb3 18.axb3 Qb5 19.Rd3 Bg7 20.c4 Qb4 21.Bd4 Bxd4 22.Qxd4 Ra2 23.f5 f6 24.Qe3 g5 25.Qh3 Qc5+ 26.Kh1 Qe5 27.Re1 Ra1 28.Re3 Rb8 29.Rxa1 Qxa1+ 30.Kh2 Qd4 31.Qf3 Ra8 32.Rd3 Qe5+ 33.Qg3 Qc5 34.Rd1 Ra3 35.Rb1 Qd4 36.Re1 Qb2 37.Re3 Ra1 38.Qf3 Qc1 39.Kg3 Qh1 40.Qf2 Rf1 41.Rf3 Qh4# 0-1
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196128 WCM Morales Flores, Monserrat (1936) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bb5 Bd7 7.O-O g6 8.Ba4 Bg7 9.Be3 O-O 10.h3 Rc8 11.Bb3 Nxd4 12.Bxd4 Bc6 13.f3 a5 14.a4 Nd7 15.Bxg7 Kxg7 16.Qd4+ Kg8 17.Rad1 Qb6 18.Qxb6 Nxb6 19.Nb5 Bxb5 20.axb5 a4 21.Bd5 Rxc2 22.Bxb7 Rxb2 23.Bc6 Rc8 24.Rb1 Rxb1 25.Rxb1 Kf8 26.Kf2 e6 27.Ke3 Ke7 28.Kd4 Rc7 29.f4 Ra7 30.Ra1 f6 31.g3 h6 32.g4 g5 33.fxg5 hxg5 34.h4 gxh4 35.Rh1 a3 36.Rxh4 Ra4+ 37.Kc3 a2 38.Rh7+ Kf8 39.Rh8+ Kg7 0-1
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196422 GM Obregon Rivero, J (2463) FM Atwell, Rose (2337) 1/2-1/2
1.Nf3 d5 2.g3 Bf5 3.Bg2 e6 4.O-O c6 5.d4 Nd7 6.c4 Ngf6 7.Nc3 Bd6 8.Qb3 Qc7 9.Nd2 O-O 10.e4 dxe4 11.Ndxe4 Nxe4 12.Nxe4 Bxe4 13.Bxe4 Nf6 14.Bf3 Rad8 15.Be3 b6 16.Rad1 c5 17.Rfe1 cxd4 18.Bxd4 Bc5 19.Be5 Qe7 20.a3 Rxd1 21.Rxd1 Rd8 22.Rxd8+ Qxd8 23.Qc3 Bf8 24.b4 Nd7 25.Bf4 a5 26.Bc6 Qc8 27.Bxd7 Qxd7 28.bxa5 bxa5 29.Qxa5 Qd3 30.Qa8 Qxa3 31.Qc6 h6 32.Be3 Qd6 33.Qe4 Qc7 34.Qd4 Bd6 35.c5 Be5 36.Qe4 Bf6 37.c6 e5 38.Qd5 Bd8 39.Bc5 Qc8 40.Bd6 Bc7 41.Qxe5 Bxd6 42.Qxd6 Qe8 43.Qd5 Qc8 44.Qd7 Qb8 45.Kg2 Qb5 46.Qd6 Qb6 47.Qd7 Qb5 48.h4 h5 49.Qd8+ Kh7 50.c7 Qc6+ 51.Kh2 Qc2 52.Kg2 Qc6+ 53.Kg1 Qc1+ 54.Kg2 Qc6+ 1/2-1/2
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196173 IM Mahdavi, Reza (2490) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.Re1 Nc6 7.c3 e6 8.d4 cxd4 9.cxd4 d5 10.e5 Ne4 11.a3 Be7 12.Nbd2 Nxd2 13.Bxd2 O-O 14.Rc1 Rfc8 15.Rc3 b5 16.Rd3 b4 17.Ng5 bxa3 18.bxa3 Bxg5 19.Bxg5 Ne7 20.Qh5 Ng6 21.Rh3 h6 22.Be3 Qa4 23.Rg3 Qxa3 24.Qg4 Qc3 25.Rf1 Qc2 26.h4 Qe4 27.h5 Qxg4 28.Rxg4 Ne7 29.Bxh6 Nf5 30.Bxg7 Kh7 31.Bf6 a5 32.Rb1 Rc7 33.Rg5 a4 34.g4 Nxd4 35.Rg7+ Kh6 36.Kg2 Nf5 37.gxf5 exf5 38.Rb6 a3 39.e6 a2 40.exf7 Rf8 41.Be5+ Kxh5 42.Bf4 1-0
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196437 GM Obregon Rivero, J (2463) Nguyen Truong An Khang (2021) 1/2-1/2
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.b3 O-O 6.Bb2 c5 7.e3 Nc6 8.c4 d4 9.exd4 cxd4 10.d3 e5 11.Re1 Qc7 12.Na3 Nd7 13.Nb5 Qb6 14.Bh3 a6 15.Bxd7 Bxd7 16.Nxe5 Nxe5 17.Rxe5 Bf6 18.Bxd4 Qd8 19.Rd5 axb5 20.Bxf6 gxf6 21.Qh5 Qe7 22.Qh6 f5 23.Rxd7 Qxd7 24.Qg5+ Kh8 25.Qf6+ Kg8 26.Qg5+ Kh8 27.Qf6+ Kg8 28.Qg5+ 1/2-1/2
2026.02.19 3rd 3-0 Thu 19th Feb 2026
2196210 GM Obregon Rivero, J (2463) IM Pham Le Thao Nguyen (2348) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Bd6 7.Qe2+ Qe7 8.Qxe7+ Kxe7 9.O-O Be6 10.Re1 Nd7 11.d4 Nb6 12.Bd3 Kd7 13.b3 Bb4 14.Bd2 Bxd2 15.Nxd2 Nd5 16.a3 Nf4 17.Bf1 Bf5 18.c4 g5 19.g3 Ng6 20.b4 h5 21.Ne4 Bxe4 22.Rxe4 f5 23.Re2 f4 24.Rae1 Rhe8 25.Rxe8 Rxe8 26.Rxe8 Kxe8 27.Bd3 fxg3 28.fxg3 Nf8 29.Be2 g4 30.Kf2 Ke7 31.Ke3 f5 32.c5 Kf6 33.Bc4 Ng6 34.d5 Ne5 35.Bb3 h4 36.d6 h3 37.Bc2 b6 38.cxb6 axb6 39.a4 Nc4+ 40.Kf4 Nxd6 41.a5 Nb5 42.Bxf5 bxa5 43.bxa5 c5 44.Bxg4 c4 45.a6 c3 46.Bd1 Na7 47.Kg4 Ke5 48.Kxh3 Kd4 49.Kg4 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178569 GM Obregon Rivero, J (2463) IM Suyarov, Mukhammadzokhid (2449) 0-1
1.e4 e5 2.Nf3 Nf6 3.d3 Nc6 4.h3 d5 5.Nbd2 Bc5 6.c3 O-O 7.Qc2 a5 8.Be2 dxe4 9.dxe4 Qe7 10.a4 Rd8 11.O-O h6 12.Bc4 Be6 13.Qb3 Bxc4 14.Qxc4 Bb6 15.Qe2 Nh5 16.Qb5 Nf4 17.Nc4 Nd3 18.Nxb6 cxb6 19.Qxb6 Rd6 20.Qb5 Rad8 21.Be3 R8d7 22.Rad1 Qe6 23.Rd2 Qg6 24.Rfd1 Qxe4 25.b3 f5 26.c4 Rg6 27.Kf1 Rgd6 28.c5 Rd5 29.Qc4 Ndb4 30.Rxd5 Rxd5 31.Rxd5 Qxd5 32.Qxd5+ Nxd5 33.Ke2 Kf7 34.Bd2 Ke6 35.g4 f4 36.Kd3 Nf6 37.Kc4 g5 38.Kb5 e4 39.Ne1 Nd5 40.Nc2 Ne5 41.Bxa5 Nd3 42.Bd2 Kd7 43.Nd4 Nc7+ 44.Kc4 Ne5+ 45.Kc3 Nd5+ 46.Kc2 Nd3 47.f3 Nxc5 48.fxe4 Nxe4 49.Kd3 Nf2+ 50.Kc4 Nc7 51.Nf5 Nxh3 52.Nxh6 Nf2 53.Nf7 Ne6 54.Nxg5 Nxg5 55.Bxf4 Ne6 56.Kb5 Nxf4 57.b4 Nxg4 58.a5 Nd5 59.a6 Nc7+ 60.Kb6 bxa6 61.Kb7 Ne5 62.Kb6 Nc6 63.b5 axb5 64.Kc5 b4 65.Kc4 Kd6 66.Kb3 Kc5 67.Kc2 Kb5 68.Kb2 Na6 69.Kc2 Nc5 70.Kb1 Kc4 71.Kc1 Ne5 72.Kb1 Ned7 73.Ka1 Nb6 74.Kb1 Nd5 75.Kc1 b3 76.Kb2 Nb4 77.Kb1 Kc3 0-1
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178591 GM Ibarra Jerez, JC (2533) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nc3 e6 3.d4 cxd4 4.Qxd4 Nc6 5.Qe3 d6 6.b3 Nf6 7.Bb2 Be7 8.O-O-O O-O 9.f4 Qa5 10.Kb1 d5 11.Nf3 Bc5 12.Qe1 Bb4 13.e5 Ne4 14.Rd3 Bd7 15.a3 Nxc3+ 16.Bxc3 Qxa3 17.Nd4 Bxc3 18.Qxc3 Nb4 19.Rh3 Rfc8 20.Qb2 Qxb2+ 21.Kxb2 h6 22.c3 Nc6 23.Nb5 Ne7 24.Nd6 Rc7 25.Bd3 Nc8 26.Nb5 Bxb5 27.Bxb5 Ne7 28.Ra1 a6 29.Bd3 Rac8 30.Rf3 Kf8 31.Be2 Nf5 32.g3 Ne7 33.Ra4 Nc6 34.Bd3 Ke7 35.g4 Nb8 36.f5 Rxc3 37.f6+ gxf6 38.exf6+ Kd6 39.h4 Nd7 40.g5 Ne5 41.Rg3 Nxd3+ 0-1
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178337 CM Li, Aiden Linyuan (2059) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.Be2 Bd7 9.O-O Be7 10.Rad1 O-O 11.f3 Rc8 12.Nxc6 Bxc6 13.Bxf6 Bxf6 14.Qxd6 Qb6+ 15.Kh1 Qxb2 16.e5 Qxc3 17.exf6 Qxf6 18.Bd3 g6 19.Qb4 Rfd8 20.Be4 Bxe4 21.Qxe4 Qb2 22.Rb1 Qxc2 23.Qxb7 a5 24.Qb5 Rc5 25.Qb6 Rd2 26.Rg1 Rg5 27.Rbc1 Qxa2 28.Rc8+ Kg7 29.Qb8 Rdxg2 30.Rg8+ Kh6 31.Rf1 Rxh2+ 32.Qxh2+ Rh5 33.Qxh5+ Kxh5 34.Rg7 Qe2 35.Rxh7+ Kg5 36.Rg1+ Kf6 37.Rh3 a4 38.Rg2 Qe1+ 39.Kh2 Qe5+ 40.f4 Qxf4+ 41.Kg1 Qd4+ 42.Rf2+ Ke7 43.Kf1 Qd1+ 44.Kg2 Qg4+ 45.Rg3 Qe4+ 46.Rgf3 a3 47.Kg3 Qg4+ 48.Kxg4 f5+ 49.Kg3 Kf6 50.Rxa3 g5 51.Ra4 g4 52.Ra5 Kg5 53.Raxf5+ exf5 54.Rf4 Kf6 55.Rd4 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178358 GM Obregon Rivero, J (2463) CM Zareba, Piotr (2131) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.Nc3 c5 7.d4 Nc6 8.d5 Na5 9.Nd2 a6 10.a4 Bd7 11.Qc2 b5 12.axb5 axb5 13.cxb5 Qc7 14.b3 Rfb8 15.Nc4 Bxb5 16.Nxb5 Rxb5 17.Bd2 Nd7 18.Rxa5 Rbxa5 19.Bxa5 Rxa5 20.Nxa5 Qxa5 21.Rb1 Nb6 22.h4 h5 23.Qe4 Bf6 24.b4 cxb4 25.Qxb4 Qxb4 26.Rxb4 Nd7 27.Rb7 Nc5 28.Ra7 g5 29.hxg5 Bxg5 30.e3 h4 31.gxh4 Bxh4 32.Bf3 Bf6 33.Kf1 Kg7 34.Ke2 Kg6 35.Ra8 Kf5 36.Bh5 e6 37.Bxf7 exd5 38.Bxd5 Ke5 39.Bg2 d5 40.Re8+ Kd6 41.Rf8 Ke7 42.Rc8 Kd6 43.Rb8 d4 44.Rb6+ Ke7 45.exd4 Bxd4 46.Rc6 Ne6 47.Ra6 Be5 48.Kf1 Nd4 49.Bd5 Bd6 50.f3 Nf5 51.Ra7+ Kf6 52.Ba2 Ke5 53.Ra5+ Kf4 54.Bd5 Be5 55.Ra4+ Bd4 56.Be4 Ng3+ 57.Kg2 Ne2 58.Bd3 Nc3 59.Rxd4+ Ke3 60.Rd8 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178633 GM Nguyen Ngoc Truong Son (2600) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.Nf3 Nf6 5.Na3 Nc6 6.Bc4 Qd8 7.O-O e6 8.Nc2 Be7 9.d4 O-O 10.Qe2 b6 11.Rd1 Qc7 12.g3 Bb7 13.Bf4 Qc8 14.dxc5 Bxc5 15.Bd6 Bxd6 16.Rxd6 Qc7 17.Rd2 Ng4 18.Nce1 Nce5 19.Bb5 a6 20.Ba4 b5 21.Bd1 Rfd8 22.h3 Nxf3+ 23.Nxf3 Nf6 24.Rxd8+ Rxd8 25.Bc2 Qc6 26.Rd1 Rxd1+ 27.Bxd1 h6 28.Qd3 Nd7 29.Kf1 Qc7 30.Qd4 Bd5 31.b3 Nc5 32.Nd2 Nb7 33.Ke1 Nd6 34.f4 Nf5 35.Qd3 Qc5 36.Nf1 Bg2 37.g4 Bxf1 38.Kxf1 Ne3+ 39.Ke2 Nd5 40.Kd2 Nxf4 41.Qd8+ Kh7 42.Bc2+ g6 43.Qf6 Qf2+ 44.Kd1 Qf3+ 45.Kd2 Qf2+ 46.Kd1 Nxh3 47.Bxg6+ fxg6 48.Qe7+ Kg8 49.Qxe6+ Qf7 50.Qxa6 Nf2+ 51.Kc2 Nxg4 52.Qc8+ Kh7 53.Qxg4 Qf5+ 54.Qxf5 gxf5 55.a4 bxa4 56.bxa4 h5 57.a5 h4 58.a6 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178402 WCM Sayce, Hannah (1889) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.f4 Be7 8.Qd2 a6 9.O-O-O Bd7 10.Nxc6 Bxc6 11.Kb1 Nxe4 12.Nxe4 Bxe4 13.Bxe7 Kxe7 14.Qd4 Bg6 15.Qxg7 Rg8 16.Qd4 Qc7 17.Bd3 Bxd3 18.Qxd3 Rxg2 19.Qxh7 Rc8 20.Rc1 Qc5 21.h4 Qd4 22.h5 Rh8 23.Qd3 Qxd3 24.cxd3 Kd7 25.Rc4 d5 26.Rd4 Kd6 27.Rb4 b5 28.Rb3 Rf2 29.Rh4 Rc8 30.Rc3 Rg8 31.a3 Rgg2 32.Rb3 Rf1+ 33.Ka2 Rgg1 34.Rc3 Rh1 35.Rxh1 Rxh1 36.f5 Rxh5 37.fxe6 fxe6 38.Rc8 Rh3 39.Ra8 Rxd3 40.Rxa6+ Ke5 41.Rb6 d4 42.Rxb5+ Ke4 43.a4 Rh3 44.a5 d3 45.Rb6 d2 46.Rxe6+ Kd5 47.Re8 Rd3 48.Rd8+ Kc4 49.Rc8+ Kb5 50.Rb8+ Ka6 51.Ra8+ Kb7 52.Rh8 d1=Q 53.Rh7+ Ka6 54.Rh4 Rd4 55.Rh6+ Kxa5 56.Rh3 Ra4+ 57.Ra3 Rxa3+ 58.bxa3 Qd3 59.Kb2 Ka4 60.Kc1 Qe2 61.Kb1 Kxa3 62.Ka1 Qd1# 0-1
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178658 GM Obregon Rivero, J (2463) GM Dudin, Gleb (2596) 1-0
1.e4 a6 2.d4 e6 3.Bd3 d5 4.Nf3 c5 5.c3 Nc6 6.O-O cxd4 7.cxd4 dxe4 8.Bxe4 Nf6 9.Bd3 Be7 10.a3 O-O 11.Nc3 b5 12.Re1 b4 13.axb4 Nxb4 14.Bc4 Bb7 15.Ne5 Rc8 16.Bb3 Nbd5 17.Bd2 Qb6 18.Nxd5 exd5 19.Ba5 Qd6 20.Bc3 Ne4 21.Qd3 Bh4 22.Re2 Bf6 23.f3 Ng5 24.Rae1 Qb6 25.Ba4 Rfd8 26.Nd7 Qd6 27.Nc5 Bc6 28.Bxc6 Qxc6 29.h4 Ne6 30.Nxe6 fxe6 31.Rxe6 Qb5 32.Qxb5 axb5 33.Rb6 Rb8 34.Ree6 b4 35.Rxb4 Rxb4 36.Bxb4 Bxd4+ 37.Kf1 Bxb2 38.Rd6 Rxd6 39.Bxd6 Kf7 40.h5 Ke6 41.Bb4 d4 42.Ke2 Kd5 43.Kd3 Bc1 44.g4 Bf4 45.Bf8 g6 46.hxg6 hxg6 47.Bg7 Be3 48.Bf6 Bf2 49.Bg7 Be3 50.Bf6 Bf2 51.Bg5 Be3 52.Bxe3 dxe3 53.Kxe3 Ke5 54.f4+ Kd5 55.Kd3 Kc5 56.Ke4 Kd6 57.Kd4 Ke6 58.Kc5 Ke7 59.Kd5 Kd7 60.Ke5 Ke7 61.g5 Kf7 62.Kd6 Kf8 63.Ke6 Kg7 64.Ke7 Kg8 65.Kf6 Kh7 66.Kf7 Kh8 67.Kxg6 Kg8 68.f5 Kf8 69.Kf6 Kg8 70.Ke7 Kg7 71.f6+ Kg6 72.f7 Kxg5 73.f8=Q 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178412 GM Obregon Rivero, J (2463) IM Taher, Yoseph Theolifus (2451) 0-1
1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 Nc7 6.Bc4 Nc6 7.Qe4 g6 8.a4 Bg7 9.Nf3 O-O 10.O-O d6 11.exd6 exd6 12.Rd1 d5 13.Bxd5 Bf5 14.Qc4 Be6 15.Qc5 Nxd5 16.c4 Qb6 17.Qa3 Ndb4 18.Be3 Qc7 19.Qb3 Rfd8 20.Nc3 a5 21.Nd5 Bxd5 22.cxd5 Ne5 23.Ng5 Qc4 24.Qa3 Nc2 25.Qe7 Rd7 26.d6 Nxa1 27.f4 Rxe7 28.dxe7 Re8 29.fxe5 Qe2 0-1
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178457 GM Obregon Rivero, J (2463) CM Nalbandyan, Vahan (2157) 1-0
1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 c5 6.Nc3 Be7 7.b3 O-O 8.Bb2 d5 9.e3 Nbd7 10.Qe2 Rc8 11.d3 a6 12.Rad1 Qc7 13.Ne1 dxc4 14.bxc4 Bxg2 15.Nxg2 Qb7 16.a4 Ne5 17.f4 Nc6 18.f5 exf5 19.Rxf5 Nb4 20.Rff1 Rfe8 21.Nf4 Rcd8 22.e4 Bd6 23.Ncd5 Nbxd5 24.cxd5 Be5 25.Bxe5 Rxe5 26.Qb2 Rde8 27.Rb1 g5 28.Ng2 Nd7 29.Ne3 f6 30.Nc4 Kg7 31.Nd6 Qb8 32.Nxe8+ Qxe8 33.Rf2 Qb8 34.Rbf1 Qd6 35.Qc3 a5 36.Qb3 h5 37.Qb5 h4 38.Qc6 Qe7 39.g4 Qd8 40.Qd6 Qe7 41.Qxe7+ Rxe7 42.Rf5 Rf7 43.Rb1 Kf8 44.h3 Ke7 45.Kf2 Kd6 46.Ke3 Kc7 47.Rbf1 Kd6 48.Rxg5 Re7 49.Rgf5 c4 50.d4 Kc7 51.Rxf6 1-0
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178503 GM Hansen, Eric (2609) GM Obregon Rivero, J (2463) 0-1
1.e4 d6 2.d4 c6 3.Nc3 Qc7 4.f4 Nd7 5.Nf3 e5 6.Be3 Ngf6 7.Qd2 b5 8.a3 Be7 9.Be2 O-O 10.h3 a6 11.O-O Bb7 12.Rae1 Rfe8 13.Kh1 Bf8 14.Bd3 c5 15.fxe5 dxe5 16.dxe5 Nxe5 17.Nxe5 Qxe5 18.Bf4 Qh5 19.e5 b4 20.exf6 bxc3 21.bxc3 c4 22.Bxc4 Qxh3+ 23.Bh2 Rxe1 24.Rxe1 Rd8 25.Qg5 h6 26.Qg3 Qxg3 27.Bxg3 gxf6 28.Rb1 Be4 29.Rb7 Bd5 30.Bxd5 Rxd5 31.c4 Rc5 32.Rb8 Rc6 33.c5 Kg7 34.Rb6 Rxc5 35.Rxa6 Rxc2 36.a4 Rc3 37.Bf2 Bc5 38.Bxc5 Rxc5 39.Kh2 Rc3 40.g3 Ra3 41.Kh3 Kg6 42.Kg4 Rb3 43.Kf4 Rb4+ 44.Kf3 Rb3+ 45.Kf4 Ra3 46.Kg4 h5+ 47.Kf4 Rb3 48.Ra5 Rb4+ 49.Kf3 Rb3+ 50.Kg2 f5 51.Kh3 Kg5 0-1
2026.01.29 3rd 3-0 Thu 29th Jan 2026
2178533 GM Obregon Rivero, J (2463) GM Preotu, Razvan (2497) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4 7.O-O Nge7 8.Nb5 O-O 9.a3 d5 10.axb4 dxc4 11.Nd6 Nxb4 12.e5 Nf5 13.Bf4 Nd3 14.Bg3 Nxd6 15.exd6 b5 16.b3 Bb7 17.bxc4 bxc4 18.Ne5 Qxd6 19.Nxc4 Qc6 20.Ne3 Rfd8 21.Qb3 f5 22.Rfd1 f4 23.Rxd3 fxe3 24.f3 Rxd3 25.Qxd3 Qc5 26.Re1 a5 27.Rxe3 a4 28.Bf2 Qd5 29.Qa3 Qd1+ 30.Be1 Bd5 31.Kf2 h6 32.h3 Rc8 33.Kg3 Rc2 34.Qd3 Qxd3 35.Rxd3 Ra2 36.Bb4 Kf7 37.Ba3 g5 38.h4 gxh4+ 39.Kh3 Kf6 40.Bb4 h5 41.Ba5 Kf5 42.Bb4 Rb2 43.Be7 Rb3 44.Rd2 a3 45.Ra2 Rb7 46.Rxa3 Rxe7 47.Kxh4 Rg7 48.Kh3 Kf4 49.Kh2 e5 50.Ra5 Bxf3 51.gxf3 h4 52.Ra4+ Kxf3 53.Rxh4 e4 54.Rh8 e3 55.Rf8+ Ke2 56.Rd8 Rg5 57.Kh3 Kf3 58.Kh4 Rf5 59.Rd3 Kf2 60.Kg4 Rf3 61.Ra3 Rg3+ 62.Kf4 Rf3+ 63.Ke4 e2 64.Rxf3+ Ke1 65.Re3 Kd2 66.Rd3+ 1-0
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121989 Lai, Duc Minh (2173) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.dxc5 Qa5+ 6.Nbd2 Qxc5 7.Bg2 O-O 8.O-O Nc6 9.Rb1 d6 10.Re1 Ng4 11.e3 Nge5 12.Nxe5 Nxe5 13.Qc2 Be6 14.Bxb7 Rab8 15.b4 Qc7 16.Bg2 Nxc4 17.Nxc4 Qxc4 18.Qxc4 Bxc4 19.a3 Ba2 20.Rb2 Bxb2 21.Bxb2 a5 22.Bc3 Rfc8 23.Bd2 Rc2 24.Rd1 Bc4 25.Be1 a4 26.Bc6 Bb3 27.Bf3 Ra2 28.Rb1 Rxa3 29.Be2 Ra2 30.Kf1 Bc2 31.Rc1 Be4 32.f3 Bd5 33.e4 Be6 34.b5 a3 35.Bc3 Rc8 36.b6 Rb8 37.Bd4 f6 38.Ke1 Bb3 39.Rc7 e5 40.Be3 Rc2 41.Ra7 a2 42.Ra3 Kg7 43.Bd1 Rb2 44.Ra7+ Kh8 45.b7 Bxd1 46.Ra8 Rxb7 47.Rxa2 Bxf3 48.Ra4 Bg4 49.Kf1 Rb2 50.Bc1 Rc2 51.Ba3 Rb1+ 0-1
2025.12.04 1st 3-0 Thu 4th Dec 2025
2121239 CM Baturin-Vinogradov, Miroslav (2061) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5 Bd7 8.Qd2 Be7 9.O-O O-O 10.Nxc6 bxc6 11.Bd3 Rb8 12.b3 Qc7 13.Rfe1 e5 14.Re3 Be6 15.Rae1 Rfe8 16.h3 a5 17.Bf1 Nd7 18.Bxe7 Rxe7 19.Rd3 Nb6 20.Rxd6 Bd5 21.Nxd5 Nxd5 22.Rxc6 Qxc6 23.exd5 Qc5 24.Bc4 h6 25.g3 Rd8 26.Kg2 Rd6 27.g4 h5 28.Qe3 Qa3 29.Qg5 Rg6 30.Qxh5 Qxa2 31.Bd3 Rh6 32.Qf5 Re8 33.Rxe5 Rf8 34.Re7 Qa3 35.Rd7 Qc5 36.g5 Rh4 37.Kg3 Qd4 38.Re7 g6 39.Qf3 Rh5 40.Kh2 Rxg5 41.Re4 Qxd5 42.Rf4 Qd6 43.h4 Re5 44.Kg2 Re6 45.Rg4 Kg7 46.h5 Rf6 47.Qg3 Qd5+ 48.Kh2 Qxh5+ 49.Rh4 Qf3 50.Qxf3 Rxf3 51.Kg2 Rf6 52.Ra4 Re8 53.Kf1 Re5 54.Rxa5 Rg5 55.Rxg5 Rf4 56.Rc5 Rf6 57.Rc4 1-0
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2122014 GM Obregon Rivero, J (2463) GM Pranav, Anand (2581) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d6 6.Be2 a5 7.O-O c6 8.c4 Nbd7 9.Nc3 Qc7 10.Rc1 e5 11.d5 Nc5 12.Nd2 Bd7 13.a3 Qb6 14.e4 Bh6 15.Rb1 Rac8 16.Kh1 Bxd2 17.Qxd2 Ncxe4 18.Nxe4 Nxe4 19.Qe1 cxd5 20.f4 f6 21.Bf3 Bf5 22.g4 Nf2+ 23.Rxf2 Bxb1 24.Bxd5+ Kg7 25.fxe5 dxe5 26.g5 Rce8 27.gxf6+ Rxf6 28.Rxf6 Qxf6 29.Qxb1 Qf2 30.Bc3 Qf4 31.Qe1 h5 32.Bxa5 Kh7 33.Bc3 e4 34.Qg3 Qc1+ 35.Kg2 Kh6 36.Be5 Qc2+ 37.Kh3 Qd1 38.Qf4+ Kh7 39.Qf7+ Kh6 40.Bg7+ Kh7 41.Bf6+ Kh6 42.Qg7# 1-0
2025.12.04 1st 3-0 Thu 4th Dec 2025
2120998 IM Buksa, N (2400) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.Nf3 g6 3.e3 Bg7 4.b3 O-O 5.Bb2 d6 6.Be2 Bf5 7.Nbd2 c6 8.c4 Ne4 9.Nxe4 Bxe4 10.Bd3 Bxf3 11.Qxf3 Nd7 12.O-O-O e5 13.Bc2 Qe7 14.h4 a5 15.h5 a4 16.Qh3 Rfd8 17.hxg6 hxg6 18.Qh7+ Kf8 19.Rh3 axb3 20.axb3 exd4 21.exd4 Qg5+ 22.Kb1 Nf6 23.Qh4 Qxh4 24.Rxh4 d5 25.f3 Ne8 26.Bc3 Nc7 27.Bb4+ Kg8 28.Bc3 Ne6 29.c5 Nxc5 30.f4 Ne4 31.Bb2 Re8 32.f5 gxf5 33.Rf4 Bh6 34.Rxf5 Nd2+ 35.Rxd2 Bxd2 36.Bd3 Bh6 37.Rf3 Re3 38.Rxe3 Bxe3 39.b4 Kg7 40.Kc2 Kf6 41.b5 Rg8 42.Bf1 Rg4 43.Kd3 Bg1 44.b6 Ke6 45.Bc3 f5 46.Bb2 Rg8 47.Bc3 Ra8 48.Bb4 Ra4 49.Bc5 Bh2 50.Bf8 Bd6 51.Bg7 Rb4 52.Be2 Rxb6 53.g4 Rb3+ 54.Kc2 Rg3 55.gxf5+ Kxf5 56.Bh6 Ke4 57.Bc1 Kxd4 58.Bh5 Kc5 59.Bd2 Kb6 60.Be1 Rg2+ 61.Kd3 c5 62.Bf7 Kc6 63.Be8+ Kc7 64.Bh4 c4+ 65.Kd4 Rg5 66.Bxg5 b5 67.Kxd5 b4 68.Ba4 b3 69.Kxc4 b2 70.Bc2 Be5 71.Bb1 Bg7 72.Kd5 1-0
2025.12.04 1st 3-0 Thu 4th Dec 2025
2121022 GM Obregon Rivero, J (2463) IM Florescu, C (2194) 1-0
1.Nf3 Nf6 2.b3 e6 3.Bb2 d5 4.e3 Be7 5.g3 O-O 6.Bg2 c6 7.O-O a5 8.a3 b5 9.d3 c5 10.Qe2 Nc6 11.e4 Ba6 12.Nbd2 b4 13.e5 Nd7 14.a4 Nb6 15.Rfc1 c4 16.dxc4 dxc4 17.Nxc4 Nxc4 18.bxc4 Qc7 19.Qe4 Rac8 20.Bf1 Bb7 21.Bd3 g6 22.Qg4 Nb8 23.Re1 Nd7 24.Bd4 Nc5 25.Bxc5 Qxc5 26.Re3 Rfd8 27.Rae1 Bc6 28.h4 Bxa4 29.h5 Be8 30.hxg6 hxg6 31.Ng5 Bxg5 32.Qxg5 a4 33.g4 Rd4 34.Rh3 Qf8 35.f3 b3 36.Kf2 bxc2 37.Reh1 Qg7 38.Qf6 1-0
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2122052 FM Hamidi, Amir Mohammad (2209) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f3 d6 6.Be3 c6 7.Qd2 a6 8.c5 b6 9.cxd6 exd6 10.Bd3 Re8 11.Nge2 b5 12.O-O Nbd7 13.Rac1 c5 14.b3 Bb7 15.Rfd1 Qe7 16.Bf2 Rac8 17.Bb1 h5 18.dxc5 dxc5 19.Nf4 Ne5 20.Ncd5 Nxd5 21.Nxd5 Bxd5 22.Qxd5 c4 23.Qd2 Red8 24.Qe2 Rxd1+ 25.Qxd1 c3 26.Qe2 Nc6 27.Kh1 Bd4 28.Be1 Qg5 29.Rd1 Qe5 30.Bg3 Qc5 31.Bc2 Nb4 32.a4 Nxc2 33.Qxc2 b4 34.h3 a5 35.Rd3 Rd8 36.Bf4 Bf6 37.Rxd8+ Bxd8 38.Qd3 Bb6 39.Qd1 c2 40.Qe1 h4 41.Kh2 Bc7 42.e5 Bxe5 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121801 GM Obregon Rivero, J (2463) GM Sarana, A (2675) 1-0
1.Nf3 d5 2.g3 c6 3.Bg2 Bf5 4.d4 Nf6 5.O-O h6 6.c4 e6 7.Nc3 Be7 8.Qb3 Qb6 9.c5 Qxb3 10.axb3 Na6 11.Ne5 Nb4 12.Ra4 a5 13.Bd2 O-O 14.Rc1 Rfb8 15.Na2 Nxa2 16.Rxa2 Bd8 17.Rca1 Bc2 18.Bxa5 Bxb3 19.Ra3 Bxa5 20.Rxa5 Rxa5 21.Rxa5 g5 22.Ra7 Bc4 23.Nxc4 dxc4 24.Ra4 Nd7 25.Rxc4 Ra8 26.Rb4 Ra7 27.e3 f5 28.Bf1 Kf7 29.Bc4 g4 30.Kg2 h5 31.Rb3 Nf6 32.Ra3 Rxa3 33.bxa3 Ne4 34.a4 Kf6 35.a5 Nd2 36.Bd3 Ke7 37.a6 bxa6 38.Bxa6 Kd7 39.Bd3 Ke7 40.Be2 Kf6 41.Bd1 Ke7 42.h3 Ne4 43.Ba4 Kd7 44.hxg4 hxg4 45.Bc2 Nd2 46.Bd1 Nc4 47.Kf1 Nd2+ 48.Ke2 Ne4 49.Bc2 Ng5 50.e4 fxe4 51.Ke3 e5 52.Bxe4 exd4+ 53.Kxd4 Nh3 54.Ke3 Ke6 55.Bxc6 Ng5 56.Bg2 Ke5 57.c6 Ne6 58.Bf1 Kd6 59.Be2 Kxc6 60.Bxg4 Nc5 61.Kd4 Kd6 62.f4 Nb3+ 63.Ke3 Ke7 64.Bf3 Nc5 65.g4 Ne6 66.g5 Ng7 67.Bg4 Kf7 68.Ke4 Kg6 69.Ke5 Ne8 70.Bd7 Nc7 71.Ba4 Na6 72.Bc2+ Kg7 73.Be4 Nc5 74.f5 Nd7+ 75.Kd6 Nf8 76.f6+ Kf7 77.Bf5 Ke8 78.g6 Nxg6 79.Bxg6+ Kf8 80.Ke6 Kg8 81.Ke7 Kh8 82.Be4 Kg8 83.f7+ Kg7 84.f8=Q# 1-0
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121823 GM Hansen, Eric (2609) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.O-O Nge7 5.Re1 a6 6.Bf1 d5 7.d3 dxe4 8.dxe4 Qxd1 9.Rxd1 Ng6 10.a4 Nge5 11.Nxe5 Nxe5 12.Bf4 Ng6 13.Be3 b6 14.Na3 Ne5 15.f4 Nd7 16.a5 b5 17.Nxb5 axb5 18.Bxb5 Ke7 19.Rd3 f5 20.e5 g5 21.Rad1 Ra7 22.Bxd7 Rxd7 23.Rxd7+ Bxd7 24.a6 Bc6 25.Rd6 Be4 26.fxg5 Bxc2 27.Bxc5 Kf7 28.Rd7+ Ke8 29.Rc7 Bxc5+ 30.Rxc5 Be4 31.Rc8+ 1-0
2025.12.04 1st 3-0 Thu 4th Dec 2025
2120817 GM Obregon Rivero, J (2463) FM Dudzinski, Pa (2169) 1-0
1.Nf3 g6 2.d4 f5 3.e3 Nf6 4.c4 Bg7 5.Be2 O-O 6.O-O d6 7.b4 Nbd7 8.Bb2 e5 9.dxe5 Ng4 10.Nbd2 Ngxe5 11.Qb3 Nxf3+ 12.Nxf3 Bxb2 13.Qxb2 Qf6 14.Qd2 Ne5 15.c5 Nxf3+ 16.Bxf3 dxc5 17.bxc5 c6 18.Rab1 Rf7 19.Rb4 Qe5 20.Rc1 Be6 21.Rd4 Kg7 22.g3 Re8 23.a4 Ree7 24.Qc3 Qf6 25.a5 a6 26.Rcd1 Rd7 27.Qb4 Rxd4 28.Qxd4 Qxd4 29.Rxd4 Rd7 30.Kf1 Rxd4 31.exd4 Bd5 32.Bd1 Kf6 33.Ke2 g5 34.Ke3 h6 35.Bh5 Bf7 36.Be2 Bd5 37.h4 Bf7 38.Bd3 Bd5 39.Kd2 f4 40.hxg5+ hxg5 41.Be2 fxg3 42.fxg3 Kf5 43.Ke3 Kf6 44.Bg4 Be6 45.Bxe6 Kxe6 46.Ke4 Kf6 47.d5 cxd5+ 48.Kxd5 Kf5 49.Kd6 Kg4 50.Kc7 b5 51.cxb6 Kxg3 52.b7 Kh2 53.b8=Q g4 54.Kb6+ g3 55.Kxa6 Kh1 56.Qh8+ Kg2 57.Kb7 Kg1 58.Qg7 g2 59.a6 Kh1 60.a7 g1=Q 61.Qxg1+ Kxg1 62.a8=Q Kf2 63.Kc6 Kg3 64.Kd5 Kh2 65.Qg8 Kh3 66.Ke4 Kh4 67.Kf4 Kh5 68.Qg5# 1-0
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2122107 IM Cieslak, Patryk (2481) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.Kb1 Be7 10.Nxc6 Bxc6 11.f3 h6 12.Be3 Rc8 13.Bd3 Nd7 14.Ne2 Ne5 15.Nd4 Nxd3 16.cxd3 Bd7 17.g4 b5 18.h4 Qc7 19.g5 h5 20.g6 f6 21.f4 Qb7 22.Rc1 Rxc1+ 23.Rxc1 d5 24.e5 b4 25.Nf3 O-O 26.exf6 Bxf6 27.Bd4 Bxd4 28.Nxd4 Qb8 29.Ne2 e5 30.Rf1 Bg4 31.Qe3 Qe8 32.Rf2 Qxg6 33.Nc1 e4 34.d4 Qf6 35.a3 Qxh4 36.axb4 Qh3 37.Qe1 Qg3 38.Qf1 e3 39.Rg2 Qxf4 40.Qg1 Qxd4 41.Ka1 Rf2 42.Rxf2 exf2 43.Qf1 Qe3 44.Ka2 Bh3 45.Qxa6 f1=Q 46.Qc6 d4 47.b3 Qd2+ 48.Kb1 Bf5+ 49.Qe4 Bxe4+ 50.Ka1 Qfxc1# 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121631 Ivanytska, Liudmyla (2041) GM Obregon Rivero, J (2463) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.h3 g6 7.Nde2 Bg7 8.g4 Rb8 9.Bg2 b5 10.O-O O-O 11.Nd5 Nd7 12.c3 e6 13.Ne3 Qc7 14.f4 b4 15.Kh1 bxc3 16.Nxc3 Nc5 17.f5 Ba6 18.Rf2 Nd3 19.Rf3 Nce5 20.f6 Nxf3 21.Qxf3 Bh6 22.Ned5 exd5 23.Nxd5 Qxc1+ 24.Rxc1 Bxc1 25.b3 Kh8 26.Qg3 Ne5 27.Qh4 Bb7 28.Ne7 a5 29.g5 a4 30.Qh6 Rg8 31.Nxg8 Rxg8 32.bxa4 Bd2 33.Qh4 Bc6 34.Qf2 Bb4 35.Qb6 Bc5 36.Qa6 Ra8 37.Qe2 Rxa4 38.Qb2 Ra8 39.Qb3 h5 40.Kh2 Kh7 41.Bf1 h4 42.Bc4 Nxc4 43.Qxc4 Be8 44.e5 Kg8 45.e6 Ra3 46.exf7+ Bxf7 47.Qe4 Rxa2+ 48.Kh1 Ra1+ 49.Kg2 Rd1 50.Qg4 Bd5+ 51.Kh2 Rh1# 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121887 GM Obregon Rivero, J (2463) CM Aynaoglu, Efe (2002) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 O-O 5.Nc3 d5 6.cxd5 Nxd5 7.h4 h5 8.Ng5 Nxc3 9.bxc3 c5 10.Rb1 Nc6 11.O-O Qc7 12.Qa4 Rd8 13.d3 Bg4 14.Re1 a6 15.Qc4 Ne5 16.Qe4 b5 17.Bf4 Bf5 18.Qe3 Rac8 19.d4 cxd4 20.cxd4 Nc4 21.Bxc7 Nxe3 22.Bxd8 Nxg2 23.Rbc1 Rxd8 24.Kxg2 Rxd4 25.Red1 Rxd1 26.Rxd1 Be5 27.e4 Bg4 28.f3 f6 29.fxg4 fxg5 30.gxh5 gxh4 31.gxh4 gxh5 32.Rd8+ Kf7 33.Ra8 Bf6 34.Kh3 Kg7 35.Rxa6 b4 36.Rb6 Bc3 37.Rb5 Kg6 38.Kg2 e5 39.Kf3 Kf6 40.Ke2 Kg6 41.Kd3 Be1 42.Rxe5 Bxh4 43.Rb5 Be1 44.Ke3 Bc3 45.Kf4 Kf6 46.Rb6+ Ke7 47.Kg5 Bd4 48.Rxb4 Be3+ 49.Kxh5 Ke6 50.Rb5 Bd4 51.Rd5 Kf6 52.Rxd4 Ke6 53.Rd1 Ke5 54.a4 Kxe4 55.a5 Ke3 56.a6 Ke2 57.Rd8 Ke1 58.a7 Ke2 59.a8=Q Ke3 60.Qa4 Ke2 61.Rb8 Ke3 62.Rb3+ Ke2 63.Qa2+ Ke1 64.Rb1# 1-0
2025.12.04 1st 3-0 Thu 4th Dec 2025
2120865 GM Obregon Rivero, J (2463) GM Lazavik, Denis (2605) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4 7.O-O Nge7 8.Nb5 O-O 9.Nd6 Ng6 10.a3 Bxd6 11.Qxd6 Qe7 12.Qd2 b6 13.b4 Bb7 14.Bb2 f5 15.exf5 Rxf5 16.Rfd1 Rd8 17.b5 Na5 18.Bd3 Rxf3 19.Bxg6 hxg6 20.gxf3 Nc4 21.Qd4 Nxb2 22.Qxb2 Qg5+ 23.Kf1 Bxf3 24.Rd3 Qg2+ 25.Ke1 Qg1+ 26.Kd2 Qxf2+ 27.Kc3 Qc5+ 28.Kd2 Qf2+ 29.Kc3 Rc8+ 30.Kb3 Bd5+ 31.Rxd5 Qxb2+ 32.Kxb2 exd5 33.Rd1 Rc5 34.a4 Kf7 35.Kb3 g5 36.Rf1+ Kg6 37.Re1 d4 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121657 IM Taher, Yoseph Theolifus (2451) GM Obregon Rivero, J (2463) 1-0
1.d4 Nf6 2.Nc3 g6 3.e4 d6 4.f4 Bg7 5.Nf3 c5 6.dxc5 Qa5 7.Bd2 Qxc5 8.Bd3 O-O 9.Qe2 Bg4 10.h3 Bxf3 11.Qxf3 a6 12.a3 Qc7 13.O-O Nc6 14.Kh1 b5 15.Rae1 Rac8 16.Qe3 Na5 17.e5 dxe5 18.fxe5 Ne8 19.Nd5 Qd8 20.Nxe7+ Qxe7 21.Bxa5 Qh4 22.Bb4 Nc7 23.Bxf8 Rxf8 24.Qf4 Qe7 25.c4 Ne6 26.Qe3 b4 27.Be4 Bxe5 28.Bd5 Bxb2 29.axb4 Qxb4 30.Bxe6 fxe6 31.Qxe6+ Kg7 32.Qe7+ 1-0
2025.12.04 1st 3-0 Thu 4th Dec 2025
2121151 GM Obregon Rivero, J (2463) FM Andreasyan, Edgar (2419) 0-1
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.e4 Nxe4 6.Bxg7 Kxg7 7.d4 d5 8.Bd3 Bg4 9.h3 Bxf3 10.Qxf3 Nf6 11.h4 h5 12.Nc3 Qd6 13.Ne2 Nbd7 14.O-O a6 15.c4 e5 16.cxd5 Rae8 17.dxe5 Nxe5 18.Qg3 Nxd3 19.Qxd3 Qxd5 20.Qxd5 Nxd5 21.Nd4 Nf4 22.Rac1 Re4 23.Nf3 Ne2+ 24.Kh2 Nxc1 25.Rxc1 c6 26.Rd1 Re7 27.Kg3 Rfe8 28.b4 Re4 29.a3 R8e7 30.Rd2 Re2 31.Rd3 f6 32.Nd4 R2e4 33.Nb3 Rg4+ 34.Kh3 g5 35.hxg5 fxg5 36.g3 Rf7 37.f3 Rc4 38.Nc5 g4+ 39.fxg4 hxg4+ 40.Kh4 Kf6 41.Rd6+ Kf5 42.Rh6 Ke5 43.Kg5 Kd4 44.Kxg4 Kc3+ 45.Kh5 Rf5+ 46.Kg6 Rf3 47.Rh3 Kb2 48.Kh5 Kxa3 49.Ne6 Kxb4 50.Ng5 Rf5 51.g4 Rff4 52.Rg3 a5 53.Ne6 Rxg4 54.Rxg4 Rxg4 55.Kxg4 a4 56.Kf3 a3 57.Nd4 Kc3 58.Ne2+ Kb2 59.Nf4 a2 60.Nd3+ Kc3 61.Nc1 a1=Q 62.Ne2+ Kd2 63.Ng3 Qc3+ 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121935 GM Obregon Rivero, J (2463) GM Martinez Alcantara, Jose Eduardo (2644) 0-1
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.h4 h6 5.c3 e5 6.h5 g5 7.e4 d6 8.c4 Nf6 9.Nc3 Bg4 10.d3 Bg7 11.Be3 O-O 12.Qd2 Nd4 13.Bxd4 cxd4 14.Nd5 Nxd5 15.cxd5 Rc8 16.Nh2 Bd7 17.g4 Qb6 18.O-O Bf6 19.Rfc1 Qa6 20.a3 Rc5 21.Bf3 Rfc8 22.Be2 Bd8 23.Nf1 Qa4 24.Bd1 Qb5 25.Be2 a5 26.Ng3 a4 27.Nf5 Bxf5 28.exf5 Ba5 29.Qd1 Kg7 30.Kg2 Kf6 31.Rxc5 Rxc5 32.Bf3 b6 33.Rb1 Qb3 34.Qxb3 axb3 35.Bd1 Rxd5 36.Bxb3 Rc5 37.Bxf7 Kxf7 38.b4 Rb5 39.Rc1 Bxb4 40.Rb1 Ra5 41.Rxb4 Ra6 42.a4 Ke7 43.Kf3 d5 44.Rb5 Kd6 45.f6 Kc6 46.Rb1 Ra8 47.Rc1+ Kd6 48.Rb1 Kc6 49.Rc1+ Kb7 50.a5 Rf8 51.axb6 Rxf6+ 52.Ke2 Rc6 53.Ra1 Rxb6 54.Ra5 Kc6 55.Ra7 e4 56.Rh7 Kc5 57.Rg7 Rb2+ 58.Kd1 Rxf2 59.Rg6 e3 60.Rxh6 Rd2+ 61.Ke1 Rxd3 62.Rh8 Rd2 63.h6 Rh2 64.h7 d3 65.Rc8+ Kd4 66.Kf1 d2 67.h8=Q+ Rxh8 0-1
2025.12.04 2nd 3-0 Thu 4th Dec 2025
2121702 GM Obregon Rivero, J (2463) FM Liu, Casper (2337) 1-0
1.Nf3 d5 2.b3 Bg4 3.Bb2 Nd7 4.e3 Ngf6 5.h3 Bh5 6.Be2 e6 7.d3 Be7 8.g4 Bg6 9.g5 Nh5 10.Nfd2 Bxg5 11.Bxh5 e5 12.Bxg6 hxg6 13.Nf3 Bf6 14.e4 c6 15.Nbd2 a5 16.a4 Nc5 17.Qe2 d4 18.Nc4 Qc7 19.Ba3 Ne6 20.Bd6 Qd8 21.Bxe5 Bxe5 22.Ncxe5 Nf4 23.Qd2 g5 24.O-O-O Qe7 25.Kb2 b5 26.Nxc6 Qc5 27.axb5 a4 28.Qb4 a3+ 29.Ka1 Qxc2 30.Qe7# 1-0
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107397 GM Obregon Rivero, J (2463) GM Tristan, L (2487) 0-1
1.Nf3 d5 2.b3 Bf5 3.Bb2 e6 4.e3 Nf6 5.d4 Nbd7 6.Bd3 c6 7.O-O h5 8.c4 Ne4 9.Nc3 h4 10.Ne1 h3 11.g3 Qf6 12.f3 Nxc3 13.Bxc3 Bxd3 14.Qxd3 Bd6 15.e4 dxc4 16.bxc4 e5 17.f4 exd4 18.e5 Qg6 19.exd6 dxc3 20.f5 Qf6 21.Rb1 O-O-O 22.Qe3 Qxd6 23.Qxc3 Qe5 24.Qxe5 Nxe5 25.f6 g6 26.Nf3 Nxc4 27.Ng5 Rd7 28.Rbd1 Nd2 29.Rxd2 Rxd2 30.Nxf7 Re8 31.Ng5 Rg2+ 32.Kh1 Ree2 33.Nf3 Rgf2 34.Kg1 Rxf1+ 35.Kxf1 Re6 36.Ng5 Rxf6+ 37.Kg1 Rf5 38.Nxh3 Ra5 39.Nf4 g5 40.Ne6 g4 41.Kf2 Rxa2+ 42.Ke3 Rxh2 43.Kf4 a5 44.Kxg4 a4 0-1
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107186 GM Obregon Rivero, J (2463) IM Cieslak, Patryk (2481) 0-1
1.Nf3 d6 2.d4 Nf6 3.Nc3 Nbd7 4.e4 e5 5.Bc4 Be7 6.O-O O-O 7.Re1 c6 8.a4 h6 9.b3 Re8 10.Bb2 Qc7 11.a5 Bf8 12.d5 Rb8 13.Bf1 cxd5 14.Nxd5 Nxd5 15.Qxd5 Nf6 16.Qd2 Bg4 17.Qe3 a6 18.c4 Nd7 19.Nd2 Nc5 20.h3 Bd7 21.b4 Ne6 22.Rac1 Be7 23.g3 Bg5 24.Qd3 g6 25.h4 Be7 26.Nb1 Qd8 27.Nc3 Bf8 28.Nd5 h5 29.Rc2 Nc7 30.Nb6 Be6 31.Bc1 Kh7 32.Bg5 Be7 33.Be3 f5 34.Rd2 Rf8 35.exf5 Bxf5 36.Qb3 Qe8 37.Bd3 Rd8 38.Bxf5 Rxf5 39.Qd3 Qf7 40.Qe4 Rb8 41.Ree2 Bf8 42.c5 dxc5 43.Bxc5 Bxc5 44.bxc5 Qg7 45.Rd7 Rf7 46.Rxf7 Qxf7 47.Qxe5 Re8 48.Qb2 Rxe2 49.Qxe2 Qf6 50.Qe4 Qc6 51.Qe7+ Kh6 52.Qf8+ Kh7 53.Qe7+ Kg8 54.Nd7 Nd5 55.Qe8+ Kg7 56.Qe5+ Kf7 57.Nb8 Qe6 58.Qh8 Qe1+ 59.Kg2 Qe4+ 60.Kg1 Nf6 61.Qd8 Qe1+ 62.Kg2 Qe4+ 63.Kg1 Qe7 64.Qc8 Qe1+ 65.Kg2 Qe4+ 66.Kg1 Qe7 67.Kg2 Nd5 68.c6 Qe4+ 69.Kg1 Qg2+ 0-1
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107455 CM Tikhonov, Viacheslav (2172) GM Obregon Rivero, J (2463) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.h3 Nc6 6.Qe3 g6 7.Be2 Bh6 8.Qc3 Qa5 9.Bxh6 Nxh6 10.O-O O-O 11.Qe3 Kg7 12.c4 Be6 13.Nc3 f6 14.Nd5 Nf7 15.Nd4 Nxd4 16.Qxd4 Bxd5 17.exd5 g5 18.b3 b5 19.c5 dxc5 20.Qxc5 Nd6 21.Bg4 Qd8 22.Be6 Qb8 23.Rfe1 Ra7 24.Rac1 b4 25.Qd4 a5 26.h4 Nb5 27.Qg4 Qf4 28.Qxf4 gxf4 29.Rc4 Nc3 30.a3 f3 31.gxf3 Rb8 32.axb4 axb4 33.Kh2 Rb5 34.Rg1+ Kh6 35.Rd4 Ra2 36.Rg2 Re2 37.Bf7 Re5 38.Rdg4 Nxd5 39.Rg7 Nf4 40.R2g4 Ng6 41.Bxg6 Kxg7 42.Bd3+ Kf7 43.Bxb5 Rxb5 44.Kg3 h5 45.Rc4 Ke6 46.f4 Rd5 47.Kf3 Rd3+ 48.Ke4 Rxb3 49.Rc6+ Kf7 50.Rc5 Rb2 51.Rxh5 b3 52.Rb5 Rb1 53.Kf3 b2 54.Kg2 Kg6 55.h5+ Kh6 56.Rb7 e6 57.Rb5 f5 58.f3 Kxh5 59.Rb4 Kg6 60.Rb7 Kf6 61.Kh2 Kg6 62.Kg2 Kh6 63.Kh2 Kh5 64.Kg2 Kg6 65.Kh2 Rf1 66.Rxb2 Rxf3 67.Re2 Kh5 68.Rxe6 Kg4 69.Re4 Rf2+ 70.Kg1 Ra2 71.Re1 Kg3 72.Rf1 Rg2+ 73.Kh1 Rh2+ 74.Kg1 Rh4 75.Rf2 Rg4 76.Rg2+ Kxf4 77.Kf1 1-0
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107238 GM Obregon Rivero, J (2463) IM Altini, N (2360) 1-0
1.Nf3 d5 2.b3 Nf6 3.Bb2 c5 4.e3 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Ne5 Rc8 8.O-O e6 9.f4 Be7 10.d3 O-O 11.Nd2 Be8 12.Rf3 Nd7 13.Rh3 f6 14.Nef3 Bd6 15.Qe1 Bg6 16.Nh4 e5 17.Nxg6 hxg6 18.Qf2 exf4 19.exf4 d4 20.Ne4 Nb6 21.f5 g5 22.Qf3 Bf4 23.Qh5 Nd5 24.Qh7+ Kf7 25.Qg6+ Ke7 26.Rh7 Rf7 27.Rxg7 Qf8 28.Rxf7+ Qxf7 29.Qxf7+ Kxf7 30.g3 Be3+ 31.Kg2 Ke7 32.c4 Nb4 33.Rd1 a5 34.Ba3 b6 35.Bxb4 axb4 36.Re1 Ra8 37.Re2 Kf7 38.Kf3 Rh8 39.Kg4 Rh7 40.h4 gxh4 41.gxh4 Rg7+ 42.Kf3 Rg1 43.Nd6+ Ke7 44.Nc8+ Kf7 45.Nxb6 Rd1 46.Ke4 Rh1 47.Nd7 Rxh4+ 48.Kd5 Rf4 49.Nxc5 Rxf5+ 50.Kc6 Re5 51.Ne4 f5 52.Nd6+ Kf6 53.Rh2 f4 54.Rh8 Ra5 55.Rf8+ Kg5 56.c5 Kg4 57.Kb6 Rxa2 58.c6 Rc2 59.Nc4 f3 60.c7 Bf4 61.c8=Q+ Kg3 62.Qf5 Be3 63.Qxf3+ 1-0
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2106985 CM Castro Lombana, Juan Pablo (2102) GM Obregon Rivero, J (2463) 0-1
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.e4 c5 6.Nge2 Nc6 7.d3 d6 8.O-O Ne8 9.Rb1 Nc7 10.a3 a5 11.Be3 Ne6 12.Nd5 Ned4 13.h3 Nxe2+ 14.Qxe2 e6 15.Nc3 Nd4 16.Qd1 Bd7 17.f4 a4 18.Kh2 Qc7 19.g4 b5 20.Bxd4 Bxd4 21.cxb5 Qa5 22.Qe1 Bxb5 23.Rf3 Rab8 24.f5 Bc6 0-1
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107266 GM Bok, B (2588) GM Obregon Rivero, J (2463) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 c5 6.dxc5 Qa5 7.Qa4 Qxc5 8.Be3 Qh5 9.Nh3 Nc6 10.Nf4 Qa5 11.Bxc6 Qe5 12.Bf3 d6 13.Qb5 Ng4 14.Qxe5 dxe5 15.Nfd5 Nxe3 16.Nxe7+ Kh8 17.fxe3 Be6 18.Bxb7 Rab8 19.Bd5 Rxb2 20.O-O Bh3 21.Rxf7 Rxf7 22.Bxf7 e4 23.Ned5 Rc2 24.Kf2 Bxc3 25.Nxc3 Rxc3 26.Bd5 Bf5 27.Rb1 Rc2 28.Rb8+ Kg7 29.Rb7+ Kh6 30.Bg8 Kg5 31.h4+ Kf6 32.Rf7+ Ke5 33.Rxa7 Bg4 34.Re7+ Kf5 35.Rf7+ Ke5 36.Re7+ Kf5 37.Rf7+ Ke5 38.Re7+ 1/2-1/2
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107023 GM Obregon Rivero, J (2463) FM Vaibhav, Jayant Raut (2351) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 O-O 5.Nc3 d6 6.d3 Nbd7 7.h3 e5 8.Be3 Re8 9.Qd2 a5 10.Bh6 Bh8 11.e4 Nc5 12.O-O a4 13.Rab1 Ne6 14.Nd5 c6 15.Ne3 Nc5 16.b4 axb3 17.axb3 Bd7 18.b4 Ne6 19.Ra1 Qb6 20.Nf5 Qc7 21.Rxa8 Rxa8 22.Ne7# 1-0
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107341 CM Zhukovskyi, Myhaylo (2181) GM Obregon Rivero, J (2463) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d4 cxd4 6.Nxd4 O-O 7.c4 Nc6 8.Nc3 Qb6 9.Nb3 d6 10.Nd5 Nxd5 11.cxd5 Ne5 12.Be3 Qa6 13.Bd4 Bd7 14.Qd2 Rfc8 15.a3 Nc4 16.Qf4 Bxd4 17.Nxd4 Nxb2 18.Qe3 Qa4 19.Qxe7 Nc4 20.Qf6 Re8 21.e3 Rad8 22.Rfb1 b5 23.Rb4 Qa6 24.a4 bxa4 25.Bf1 Rc8 26.Rc1 a3 27.Bxc4 a2 28.Ne6 fxe6 29.dxe6 Rxc4 30.Rbxc4 Rf8 31.exd7 Rxf6 32.d8=Q+ Rf8 33.Qe7 a1=Q 34.Qe6+ Kg7 35.Rc7+ Kh8 36.Rxa1 Qxa1+ 37.Kg2 Qb2 38.Rf7 Rxf7 39.Qxf7 Qb8 40.h4 Qg8 41.Qf6+ Qg7 42.Qd8+ Qg8 43.Qxd6 Qg7 44.Qb8+ Qg8 45.Qxa7 Qg7 46.Qxg7+ Kxg7 47.Kf3 Kf7 48.Kf4 Kg7 49.e4 h6 50.e5 Kf7 51.Ke4 Ke7 52.Kd5 1-0
2025.11.20 2nd 3-0 Thu 20th Nov 2025
2107134 GM Anton Guijarro, D (2648) GM Obregon Rivero, J (2463) 1/2-1/2
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 c5 6.c4 Nc6 7.O-O d6 8.d4 cxd4 9.Nxd4 Qb6 10.Nc2 Be6 11.Nc3 Bxc4 12.Na4 Qa6 13.Bxc6 bxc6 14.Nb4 Qb5 15.Nxc6 Qxc6 16.Rc1 Bxe2 17.Qxe2 Qb7 18.Rfe1 Nd5 19.Bxg7 Kxg7 20.Qe4 Rab8 21.h4 h5 22.Rcd1 e6 23.Nb2 Rfd8 24.Nc4 Qa6 25.Rd2 Nf6 26.Qf4 d5 27.Ne5 Rbc8 28.Qd4 Qb6 29.Qb2 Qc5 30.Rd4 Qc3 31.Qxc3 Rxc3 32.Ra4 Rc7 33.Re2 Ne4 34.Ra6 Rdc8 35.Kg2 f6 36.Nd3 Kf7 37.Nf4 Re7 38.f3 Nc3 39.Rd2 Rcc7 40.Nd3 e5 41.Nb2 d4 42.Nc4 Re6 43.Ra5 Rec6 44.Rd3 Ke7 45.Rd2 Rc5 46.Ra6 Nd5 47.f4 R5c6 48.Ra5 Nb6 49.fxe5 Rxc4 50.exf6+ Kf7 51.bxc4 Nxc4 52.Rxd4 Nxa5 53.Ra4 Nc4 54.Ra6 Nb6 55.Kf3 Kxf6 56.g4 hxg4+ 57.Kxg4 Rc4+ 58.Kg3 Ra4 59.Rxa4 Nxa4 60.Kf4 Nc3 61.a3 a5 62.Ke3 Nb5 63.a4 Nc3 64.Kd3 Nxa4 65.Kc4 Nb6+ 66.Kb5 a4 67.Kxb6 a3 68.Kc5 a2 69.h5 a1=Q 70.hxg6 Qe5+ 71.Kc6 Qg5 72.g7 Qxg7 73.Kc5 Qe7+ 74.Kd4 Qe6 75.Kc5 Ke5 76.Kb4 Qd5 77.Kc3 Qd4+ 78.Kc2 Qd5 79.Kb2 Qd4+ 80.Kc2 Qe3 81.Kb1 1/2-1/2
2025.11.18 Titled Tue 18th Nov 2025
2104066 IM Martinez Ramirez, L (2409) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.c4 g6 3.f3 Bg7 4.e4 O-O 5.Be3 d6 6.Ne2 c5 7.d5 e6 8.Nec3 exd5 9.cxd5 a6 10.a4 Nbd7 11.Nd2 Ne5 12.Be2 Rb8 13.O-O Re8 14.h3 Ned7 15.Nc4 Nb6 16.Na3 Nh5 17.Re1 Qh4 18.Bf2 Qg5 19.h4 Qf6 20.g3 Qd8 21.f4 Nf6 22.Bf3 h5 23.a5 Na8 24.Nc4 Ng4 25.Bxg4 Bxg4 26.Qd3 Nc7 27.e5 Bf5 28.Qd2 dxe5 29.fxe5 Nb5 30.Bxc5 Nxc3 31.bxc3 Qc7 32.Qd4 Rbc8 33.Nd6 Rxe5 34.Rxe5 Bxe5 35.Qxe5 Qxc5+ 36.Kg2 Qxc3 37.Qxc3 Rxc3 38.Nxf5 gxf5 39.Rf1 Rc5 40.Rxf5 Rxa5 41.Rxh5 Ra2+ 42.Kf3 b5 43.Rg5+ Kf8 44.Ke3 b4 45.Kd3 a5 46.d6 Ke8 47.h5 b3 48.Rg4 Rh2 49.Rh4 Rg2 50.h6 b2 51.Rh1 Rxg3+ 52.Kc2 Rg8 53.h7 Rh8 54.Kxb2 Kd7 55.Rh6 f5 56.Kc3 f4 57.Kd4 f3 58.Ke3 a4 59.Kxf3 a3 60.Ke4 a2 61.Rh1 Kxd6 62.Ra1 Rxh7 63.Rxa2 Rh4+ 0-1
2025.11.18 Titled Tue 18th Nov 2025
2103822 GM Obregon Rivero, J (2463) FM Voege, Tobias (2256) 1/2-1/2
1.Nf3 c5 2.g3 g6 3.c4 Bg7 4.Nc3 Nf6 5.d3 Nc6 6.Bg2 O-O 7.h3 Rb8 8.Bg5 d6 9.Qd2 a6 10.Bh6 b5 11.Bxg7 Kxg7 12.b3 b4 13.Nd5 Nxd5 14.cxd5 Na7 15.h4 h6 16.Qb2+ f6 17.d4 Nb5 18.O-O Bg4 19.dxc5 dxc5 20.Nh2 Bc8 21.h5 Nc3 22.hxg6 Bf5 23.Rfe1 Bxg6 24.Rac1 Qd6 25.Rxc3 bxc3 26.Qxc3 Rb4 27.e3 Rc8 28.Nf3 Qxd5 29.Nh4 Be4 30.Bxe4 Rxe4 31.Ng2 e5 32.Rc1 Rg4 33.e4 Rxe4 34.Ne3 Qe6 35.Qd3 f5 36.f3 Rxe3 37.Qxe3 c4 38.bxc4 Rxc4 39.Rxc4 Qxc4 40.Qxe5+ Kg6 41.Qd6+ Kg7 42.a3 Qe2 43.f4 Qe1+ 44.Kg2 Qe2+ 45.Kh3 Qg4+ 46.Kg2 Qe2+ 47.Kg1 Qe1+ 48.Kg2 Qe2+ 1/2-1/2
2025.11.18 Titled Tue 18th Nov 2025
2103574 FM Bagwe, Gaurang (2308) GM Obregon Rivero, J (2463) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.c4 O-O 6.d4 cxd4 7.Nxd4 Nc6 8.Nc3 Qb6 9.Nb3 d6 10.Be3 Qa6 11.Nd5 Nxd5 12.cxd5 Ne5 13.Bd4 Bd7 14.h3 Rac8 15.f4 Nc4 16.Bxg7 Kxg7 17.Qd4+ Kg8 18.Kh2 Qb6 19.e4 Ba4 20.Qxb6 Nxb6 21.Nd4 Rc7 22.b3 Bd7 23.Rf2 Rfc8 24.Re1 Rc3 25.Rd2 a5 26.e5 a4 27.e6 fxe6 28.Nxe6 Bxe6 29.Rxe6 Kf8 30.Rde2 R8c7 31.bxa4 Nxa4 32.h4 Nc5 33.R6e3 Rxe3 34.Rxe3 Na4 35.Ra3 Nc3 36.Bf3 Rc5 37.Rb3 Nxd5 38.Rxb7 Nf6 39.a4 Rc3 40.Kg2 Rc2+ 41.Kh3 Rc3 42.Kg2 Ra3 43.Ra7 e5 44.fxe5 dxe5 45.Bc6 Nh5 46.a5 Nxg3 47.a6 Nf5 48.h5 gxh5 49.Rxh7 Ra2+ 50.Kg1 Ra1+ 51.Kf2 Ra2+ 52.Kg1 Rxa6 53.Rxh5 Ne7 54.Be4 Ra5 55.Kf2 Ng8 56.Rh8 Kg7 57.Rh7+ Kf6 58.Kf3 Ne7 59.Kg4 Ra4 60.Rh6+ Kf7 61.Rh7+ Ke6 62.Rh6+ Kd7 63.Kf3 Ra3+ 64.Kg4 Ra4 65.Kf3 Rb4 66.Rh5 Ke6 67.Rh6+ Kd7 68.Rh5 Rb5 69.Rh6 Ra5 70.Kg4 Rc5 71.Kf3 Ke8 72.Bd3 Kf7 73.Ke4 Ng8 74.Ra6 Nf6+ 75.Ke3 Rc3 76.Kd2 Rb3 77.Bc4+ Ke7 78.Bxb3 Ne4+ 79.Kc2 Nc5 80.Ra5 Kd6 81.Rb5 Ne6 82.Rd5+ Kc7 83.Rxe5 Nd4+ 84.Kc3 Nc6 85.Rc5 Kd6 86.Rxc6+ Kxc6 1/2-1/2
2025.11.18 Titled Tue 18th Nov 2025
2103593 GM Obregon Rivero, J (2463) GM Nepomniachtchi, I (2732) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be6 8.O-O Nbd7 9.Be3 Rc8 10.Qd2 Be7 11.a4 Nb6 12.a5 Nc4 13.Bxc4 Rxc4 14.f3 O-O 15.Rfd1 Qd7 16.Nc1 Rfc8 17.Nd3 h6 18.Rdc1 Qc7 19.Ra4 Rxa4 20.Nxa4 d5 21.Nb6 Rd8 22.exd5 Nxd5 23.Nxd5 Rxd5 24.b4 Qc4 25.Qe1 Bf5 26.Bc5 Bg5 27.Be3 Bxe3+ 28.Qxe3 Bxd3 29.cxd3 Qxb4 30.Rc8+ Kh7 31.Rc7 Rxa5 32.Rxf7 Ra1+ 33.Kf2 Qh4+ 0-1
2025.11.18 Titled Tue 18th Nov 2025
2103341 FM Gubajdullin, A (2228) GM Obregon Rivero, J (2463) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d3 O-O 6.e4 Nc6 7.Nbd2 d6 8.Nc4 e5 9.Ne3 b6 10.Ng5 Bb7 11.f4 exf4 12.gxf4 Re8 13.f5 Ne5 14.fxg6 fxg6 15.Nd5 Nxd5 16.exd5 Rf8 17.Ne6 Rxf1+ 18.Qxf1 Qf6 19.Qe2 Qf5 20.Bg5 Nf7 21.Be4 Qe5 22.Bf4 Qxb2 23.Rf1 Qxa2 24.Qf3 Qxc2 25.Bg3 Ng5 26.Nxg5 Rf8 27.Qg4 Bd4+ 28.Bf2 Rxf2 29.Qe6+ Kg7 30.Qd7+ Rf7+ 31.Kh1 Rxd7 32.Ne6+ Kh6 33.Rf3 Qd1+ 34.Kg2 Qg1+ 35.Kh3 Re7 36.Rf4 Rxe6 37.dxe6 Bc8 0-1
2025.11.18 Titled Tue 18th Nov 2025
2104399 GM Krzyzanowski, M (2489) GM Obregon Rivero, J (2463) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 c5 5.dxc5 Qa5+ 6.Nc3 Qxc5 7.Bd2 O-O 8.Rc1 d6 9.h3 Nc6 10.b3 Qa5 11.Nf3 Be6 12.O-O Rfc8 13.Nd5 Qd8 14.Bc3 Bxd5 15.cxd5 Nb8 16.Nd4 Nbd7 17.e4 Nb6 18.f4 Rc5 19.Bb2 Nh5 20.Qd3 Rac8 21.Rcd1 Nd7 22.Kh2 Qa5 23.a3 Rc3 24.Bxc3 Rxc3 25.Qb5 Qxb5 26.Nxb5 Rxb3 27.Rb1 Re3 28.Rf3 Rxe4 29.Rc3 Re2 30.Rc8+ Bf8 31.Nc3 Rc2 32.Rxb7 Nc5 33.Ne4 Rxg2+ 34.Kxg2 Nxb7 35.Rc7 Nc5 36.Nxc5 dxc5 37.Rxa7 Nf6 38.Rc7 Nxd5 39.Rxc5 e6 40.Rc8 Kg7 41.a4 Nb6 42.Rb8 Nxa4 43.Kf3 Nc5 44.Rc8 Nd7 45.Rc6 Nf6 46.Ra6 h5 47.Ra7 Nd5 48.Rb7 Bd6 49.h4 Bc5 50.Rd7 Ne7 51.Rb7 Nf5 52.Rb5 Bd4 53.Ra5 Bc3 54.Ra3 Be1 55.g4 hxg4+ 56.Kxg4 Bxh4 57.Ra7 Be7 58.Rb7 Bd6 59.Ra7 Ne7 60.Rd7 Nf5 61.Kf3 Kf6 62.Ra7 Be7 63.Ra5 g5 64.fxg5+ Kxg5 65.Ke4 Kf6 66.Ra1 Nd6+ 67.Kf3 Nf5 68.Ra5 Bd6 69.Ra6 Be5 70.Ra5 Nd6 71.Ra8 Kf5 72.Ra7 f6 73.Ra4 Bc3 74.Rf4+ Ke5 75.Ra4 Kd5 76.Ra3 Bd4 77.Rd3 e5 78.Ra3 e4+ 79.Kf4 Be5+ 80.Kg4 f5+ 81.Kg5 f4 82.Ra5+ Kd4 83.Kg4 f3 84.Ra4+ Nc4 85.Ra2 Ke3 86.Kh3 Bd4 87.Ra1 f2 88.Kh2 Kf3 89.Rc1 Be3 90.Rf1 Nd2 91.Rd1 f1=Q 92.Rxf1+ Nxf1+ 93.Kh3 Nd2 94.Kh4 Ke2 95.Kh5 Bd4 96.Kg6 e3 97.Kf5 Nf3 98.Ke4 Ne5 99.Kf4 1/2-1/2
2025.11.18 Titled Tue 18th Nov 2025
2104157 GM Obregon Rivero, J (2463) FM Bardyk, Artem (2332) 1/2-1/2
1.e4 e5 2.Nc3 Nf6 3.a3 Nc6 4.Nf3 d5 5.exd5 Nxd5 6.Bb5 Nxc3 7.bxc3 Bd6 8.d4 exd4 9.cxd4 O-O 10.O-O Bg4 11.c3 Qf6 12.Be2 h6 13.h3 Bh5 14.Rb1 b6 15.Rb5 Bg6 16.Bd3 a6 17.Rb1 Rfe8 18.Qc2 Ne7 19.a4 Bxd3 20.Qxd3 Qf5 21.Qxf5 Nxf5 22.Bd2 Re4 23.Rfe1 Rae8 24.Rxe4 Rxe4 25.Kf1 f6 26.g4 Ne7 27.c4 Kf7 28.Be3 Nc6 29.Nd2 Re7 30.c5 bxc5 31.dxc5 Be5 32.Nf3 Ke6 33.Ke2 Re8 34.Rb7 Rb8 35.Nxe5 Nd4+ 36.Bxd4 Rxb7 37.Nd3 Kd5 38.Be3 Kc4 39.c6 Rb3 40.Nf4 Ra3 41.Ne6 Kd5 42.Nxc7+ Kxc6 43.Nxa6 Rxa4 44.Nc5 Ra7 45.Ne6 Re7 46.Nd4+ Kd5 47.Nf5 Rd7 48.Kf3 Ke6 49.h4 Kf7 50.h5 Rd1 51.Bf4 Kg8 52.Ne3 Ra1 53.Bg3 Kh7 54.Ke4 g6 55.hxg6+ Kxg6 56.f4 Ra4+ 57.Kf3 h5 58.f5+ Kg5 59.gxh5 Kxh5 60.Bf4 Ra3 61.Ke4 Ra4+ 62.Kf3 Ra3 63.Ke2 Ra4 64.Kf3 1/2-1/2
2025.11.18 Titled Tue 18th Nov 2025
2103163 GM Obregon Rivero, J (2463) FM Lechowski, Witold (2283) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 c6 5.d4 O-O 6.O-O d5 7.Qa4 Nbd7 8.cxd5 Nb6 9.Qa3 Nbxd5 10.Nc3 Re8 11.Re1 Bf5 12.Ne5 Nxc3 13.bxc3 Nd7 14.Nd3 Bxd3 15.exd3 e5 16.d5 cxd5 17.Bxd5 Qc7 18.Rb1 Nb6 19.Be4 Kh8 20.Be3 f5 21.Bg2 Red8 22.Red1 Nd5 23.Bd2 Nb6 24.c4 Qd7 25.c5 Nd5 26.Qb3 Nf6 27.Bxb7 Rab8 28.c6 Qc7 29.Qa3 Nd5 30.Qxa7 Ra8 31.Qc5 Rxa2 32.Ra1 Rxa1 33.Rxa1 e4 34.Ba5 Qd6 35.Qxd6 Rxd6 36.c7 Nxc7 37.Bxc7 Bxa1 38.Bxd6 exd3 39.Kf1 Bc3 40.Ba6 d2 41.Ke2 Bd4 42.f3 Bg1 43.h3 Bf2 44.Kxd2 Kg7 45.Ke2 Bb6 46.f4 h6 47.Kf3 g5 48.Be5+ Kg6 49.Bb5 Bd8 50.Be8+ Kh7 51.fxg5 hxg5 52.g4 fxg4+ 53.hxg4 Kh6 54.Ke4 Be7 55.Kf5 Bd8 56.Bf6 Ba5 57.Bxg5+ Kg7 58.Bf6+ Kf8 59.Bc6 Bd2 60.Bd5 Bh6 61.g5 Bg7 62.Bxg7+ Kxg7 63.g6 Kh8 64.Be4 Kg7 65.Kg5 Kg8 66.Kf6 Kh8 67.g7+ Kg8 68.Bd5+ Kh7 69.g8=Q+ Kh6 1-0
2025.11.18 Titled Tue 18th Nov 2025
2104741 GM Obregon Rivero, J (2463) CM Ganiev, Artur (2247) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Bd6 5.b3 O-O 6.Bb2 Nc6 7.c4 d4 8.d3 e5 9.Nbd2 a5 10.a3 h6 11.Qc2 Re8 12.Rfc1 Bf5 13.Ne4 Bxe4 14.dxe4 b6 15.Nh4 Nd7 16.Nf5 Bf8 17.Rd1 Nc5 18.Bc1 Qf6 19.Rb1 g6 20.Nh4 Ne6 21.Nf3 Ng5 22.Ne1 Ne6 23.h4 g5 24.hxg5 hxg5 25.Bh3 Kg7 26.Nd3 Nc5 27.f3 Nxd3 28.Qxd3 Bc5 29.Kg2 Rh8 30.Rh1 Rh7 31.Qd2 Rah8 32.Bb2 Qe7 33.Bf5 Rxh1 34.Rxh1 Rxh1 35.Kxh1 f6 36.Qc1 Qd6 37.Kg2 Ne7 38.Bg4 d3 39.exd3 Qxd3 40.b4 axb4 41.axb4 Bxb4 42.Qa1 Qe2+ 43.Kh3 Be1 44.Bxe5 Ng8 45.Bd4 c5 46.Qa7+ Kh6 47.Bf5 Qf1+ 48.Kh2 Qe2+ 49.Kg1 Ne7 1-0
2025.11.18 Titled Tue 18th Nov 2025
2104498 GM Obregon Rivero, J (2463) GM Vasquez Schroeder, R (2446) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.Nc3 c5 7.d4 Nc6 8.d5 Na5 9.Nd2 a6 10.a4 e6 11.e4 exd5 12.cxd5 c4 13.b4 cxb3 14.Nxb3 Ng4 15.Bd2 Nc4 16.Qe2 Nxd2 17.Qxd2 Bd7 18.a5 Rc8 19.Rfc1 Ne5 20.Kh1 b5 21.axb6 Qxb6 22.Na5 Ng4 23.Nd1 Bxa1 24.Rxa1 f5 25.h3 Ne5 26.exf5 Bxf5 27.Nc6 Rce8 28.Ne3 Bd7 29.Nxe5 dxe5 30.h4 Qd4 31.Qe1 Rxf2 32.Rxa6 Ref8 33.Rd6 Bb5 34.Rd8 Rxd8 35.Qxf2 Rf8 36.Qe1 Bd3 37.Kh2 Be4 38.Bh3 Rf3 39.Ng2 Rf2 40.Qa5 Qxd5 41.Qb6 Rf8 42.Be6+ Kg7 43.Bxd5 Bxd5 44.Qc5 Bxg2 45.Qxe5+ Kh6 46.Kxg2 Rf5 47.Qe3+ Kg7 48.g4 Rf7 49.Qe5+ Kg8 50.Kg3 h6 51.h5 g5 52.Qe6 Kg7 53.Qg6+ 1-0
2025.11.18 Titled Tue 18th Nov 2025
2104555 GM Szpar, Milosz (2499) GM Obregon Rivero, J (2463) 0-1
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.e3 f5 5.g3 h5 6.Nf3 Bh6 7.c4 O-O 8.Nc3 Re8 9.Bg2 f4 10.e4 fxg3 11.fxg3 d6 12.O-O Nc6 13.Nd5 Bg7 14.h3 Rxe4 15.Ng5 Qxg5 16.Bxe4 Qxg3+ 17.Bg2 Bxd4+ 18.Kh1 Be5 19.Kg1 Qh2+ 20.Kf2 Bg3+ 21.Kf3 Ne5+ 0-1
2025.10.19 I ch-MEX & Int Open 2025
2074773 GM Obregon Rivero, J (2462) IM Galaviz Medina, Sion Radamantys (2515) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.Ba4 Nf6 5.O-O a6 6.c4 e6 7.Nc3 Be7 8.d4 cxd4 9.Nxd4 O-O 10.Be3 Ne5 11.Bb3 Qc7 12.Qe2 Neg4 13.Bg5 d5 14.g3 dxc4 15.Bxc4 h6 16.Bd2 b5 17.Bb3 Qc5 18.Nc2 Bb7 19.h3 Ne5 20.Be3 Qc7 21.Nd4 b4 22.Na4 Bxe4 23.Bf4 Bd6 24.Rac1 Qa5 25.Nc5 Bxc5 26.Bxe5 Bxd4 27.Bxd4 Qf5 28.g4 Qf3 29.Qxf3 Bxf3 30.Rc7 Nd5 31.Rc5 Rfd8 32.Be5 a5 33.Rfc1 a4 34.Bc2 f6 35.Bc7 Rd7 36.Bg3 Kf7 37.Kh2 a3 38.bxa3 Rxa3 39.Bb3 Nc3 40.Rc4 Nxa2 41.Rc7 Nxc1 42.Rxd7+ Ke8 43.Bxe6 Ne2 44.Bd6 Ra1 45.Re7+ Kd8 46.Rd7+ Ke8 47.Re7+ Kd8 48.Rd7+ Ke8 49.Re7+ Kd8 50.Rd7+ 1/2-1/2
2025.10.18 I ch-MEX & Int Open 2025
2074731 GM Obregon Rivero, J (2462) GM Hernandez Guerrero, G (2401) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 Nf6 4.Nc3 Qc7 5.O-O Nd4 6.Re1 a6 7.Bf1 e5 8.d3 h6 9.a4 Be7 10.a5 d6 11.Nb1 Nc6 12.Bd2 O-O 13.Bc3 Be6 14.Nbd2 Nd7 15.Nc4 f5 16.Ne3 f4 17.Nd5 Qd8 18.Qb1 g5 19.b4 g4 20.Nd2 Rb8 21.bxc5 dxc5 22.Nc4 Bh4 23.g3 Bg5 24.Ra2 Nd4 25.Bxd4 cxd4 26.Rb2 Bxd5 27.exd5 Qf6 28.Re2 Qf7 29.d6 Kh8 30.Qe1 Qf6 31.c3 Rbc8 32.cxd4 exd4 33.Re7 Nc5 34.Qe5 f3 35.Qd5 Qf5 36.Re5 Qf7 37.Qxd4 Bf6 38.Qxg4 Nxd3 39.Bxd3 Bxe5 40.Nxe5 Rc1+ 41.Bf1 Qf6 42.Ng6+ Kg8 43.Nxf8+ Kxf8 44.Qf4 1-0
2025.10.18 I ch-MEX & Int Open 2025
2074750 CM Galaviz Medina, Atlas Adomaytis (2160) GM Obregon Rivero, J (2462) 0-1
1.Nf3 c5 2.b3 d5 3.Bb2 f6 4.e4 dxe4 5.Nh4 Nh6 6.Qh5+ g6 7.Bb5+ Nc6 8.Qxc5 g5 9.Bxc6+ bxc6 10.Qxc6+ Bd7 11.Qxe4 gxh4 12.Bxf6 Rg8 13.Nc3 Rg6 14.Be5 Ng4 15.O-O-O Bc6 16.Qe2 Nxe5 17.Qxe5 h3 18.d4 hxg2 19.Rhg1 Qd6 20.Qh5 Qf4+ 21.Kb1 Bf3 22.Qb5+ Kf7 23.Rd3 Kg7 24.Qe5+ Qxe5 25.dxe5 Bc6 26.Ne2 e6 27.Nf4 Bc5 28.Nxg6 hxg6 0-1
2025.10.17 I ch-MEX & Int Open 2025
2074685 GM Obregon Rivero, J (2462) FM Diaz Rosas, J (2384) 1/2-1/2
1.e4 e6 2.d3 d5 3.Nd2 Nc6 4.Ngf3 e5 5.c3 Nf6 6.Be2 Bd6 7.Qc2 O-O 8.b4 Ne7 9.a3 Ng6 10.c4 c6 11.Nb3 h6 12.O-O d4 13.Re1 Nh7 14.c5 Bc7 15.a4 Be6 16.Rb1 f5 17.exf5 Rxf5 18.Nbd2 Nf4 19.Bf1 Bd5 20.Ne4 Nh3+ 21.Kh1 Qf8 22.Rb2 g5 23.gxh3 Rxf3 24.Bg2 Rf7 25.Qe2 Kh8 26.Rg1 Nf6 27.Nxf6 Rxf6 28.Bxd5 cxd5 29.Qh5 e4 30.dxe4 dxe4 31.Re2 d3 32.Ra2 Bf4 33.Bxf4 Rxf4 34.Rxg5 Rh4 1/2-1/2
2025.10.17 I ch-MEX & Int Open 2025
2074712 IM Figueredo Losada, L (2303) GM Obregon Rivero, J (2462) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 a6 8.Bc4 b5 9.Bb3 Bb7 10.Qd2 Nbd7 11.O-O-O h5 12.Kb1 Qc7 13.Rhe1 Nb6 14.Bg5 Rc8 15.f4 Nc4 16.Bxc4 Qxc4 17.e5 dxe5 18.fxe5 Nd5 19.Nxd5 Bxd5 20.b3 Qc7 21.Bf6 Bh6 22.Bg5 Bg7 23.Bf6 Bh6 24.Bg5 Bg7 1/2-1/2
2025.10.16 I ch-MEX & Int Open 2025
2074636 IM Fus, Jakub (2420) GM Obregon Rivero, J (2462) 1/2-1/2
1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 c5 5.cxd5 Nxd5 6.g3 cxd4 7.Nxd5 Qxd5 8.Qxd4 Qxd4 9.Nxd4 Bc5 10.Nb5 Na6 11.Bg2 Ke7 12.a3 Bd7 13.Nc3 Rab8 14.Bf4 Bd6 15.Bxd6+ Kxd6 16.O-O-O+ Ke7 17.b4 Rhc8 18.Kb2 Nc7 19.Rd4 Be8 20.Rc4 Bd7 21.Rc1 Ne8 22.Rxc8 Bxc8 23.Nb5 Bd7 24.Nd4 e5 25.Nb3 b6 26.Nd2 Rd8 27.Nc4 Ba4 28.Nxe5 Rd2+ 29.Kc3 Rxe2 30.Bc6 Bxc6 31.Nxc6+ Kd7 32.Nxa7 Nd6 33.a4 Rxf2 34.Rc2 Rxc2+ 35.Kxc2 Kc7 36.b5 Nb7 37.Nc6 Nc5 38.a5 bxa5 39.Nxa5 Kb6 40.Nc4+ Kxb5 41.Nd6+ Kc6 42.Nxf7 Kd5 43.Kd2 Ke6 44.Ng5+ Kf5 45.Nxh7 Ne6 46.h4 Kg6 47.Ng5 Nxg5 48.hxg5 Kxg5 49.Ke3 Kg4 50.Kf2 Kh3 51.Kf3 g5 52.g4 Kh4 53.Kf2 Kxg4 54.Kg2 1/2-1/2
2025.10.16 I ch-MEX & Int Open 2025
2074663 GM Obregon Rivero, J (2462) WFM Starosta, Martyna (2185) 1-0
1.c4 e5 2.Nc3 Bb4 3.Qc2 Nf6 4.Nf3 Nc6 5.e3 O-O 6.d3 Re8 7.Bd2 Bf8 8.a3 d5 9.cxd5 Nxd5 10.Be2 a5 11.O-O Nf6 12.Rfd1 Bf5 13.Be1 Nd7 14.b3 Qe7 15.h3 Nc5 16.Nd2 Rad8 17.Nce4 Ne6 18.Nc4 Ra8 19.Ng3 Bg6 20.Bf3 Ned8 21.Ne4 f5 22.Nc3 e4 23.Be2 Ne6 24.d4 f4 25.d5 f3 26.dxc6 fxe2 27.Rd7 Qf6 28.cxb7 Rab8 29.Rb1 Ng5 30.Nxe2 Nf3+ 31.Kh1 Nxe1 32.Rxe1 Qxf2 33.Qd1 Bh5 34.Rd5 Bf7 35.Nf4 Bxd5 36.Qxd5+ Kh8 37.Re2 Qf1+ 38.Kh2 Bd6 39.Nxd6 cxd6 40.Rc2 Qa6 41.Rc7 Qb6 42.Qf7 Rg8 43.Qh5 d5 44.Re7 Rgf8 45.Qxd5 Qxe3 46.Rxe4 Qb6 47.Ne6 Rf1 48.Nc5 Qc7+ 49.Qe5 Rf7 50.Na6 Qxe5+ 51.Rxe5 Rfxb7 52.Nxb8 Rxb8 53.Rxa5 1-0
2025.10.15 I ch-MEX & Int Open 2025
2074610 CM Zaragoza Alanis, Miguel Arnulfo (2240) GM Obregon Rivero, J (2462) 1/2-1/2
1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nge2 Be7 5.h3 O-O 6.Be3 c6 7.a3 Re8 8.Qd2 exd4 9.Nxd4 Bf8 10.Bd3 Nbd7 11.O-O Nc5 12.f3 d5 13.exd5 Nxd3 14.Qxd3 Nxd5 15.Nxd5 Qxd5 16.c4 Qh5 17.Rad1 a6 18.Rfe1 c5 19.Ne2 b5 20.Nf4 Qh4 21.cxb5 axb5 22.Qxb5 Ba6 23.Qc6 Rec8 24.Qe4 Re8 25.Qc6 Rec8 26.Qe4 Rab8 27.Bf2 Qf6 28.Rd7 Rxb2 29.Nd5 Qg6 30.Ne7+ Bxe7 31.Qxg6 hxg6 32.Rexe7 Bc4 33.Rc7 Rd8 34.Red7 Rdb8 35.Bxc5 Be6 36.Rd4 Ra2 37.Bb4 Re8 38.Rd2 Ra1+ 39.Kf2 Bb3 40.Rc3 Be6 41.Rcd3 Kh7 42.Rd1 Rxd1 43.Rxd1 1/2-1/2
2025.10.14 I ch-MEX & Int Open 2025
2074585 GM Obregon Rivero, J (2462) Orellana, A. Carlos E (1993) 1-0
1.Nf3 c5 2.e4 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Be7 8.Be3 O-O 9.f4 Qc7 10.Qe1 b5 11.a3 Bb7 12.Bf3 Nbd7 13.Qg3 Kh8 14.Rae1 Nb6 15.Kh1 Nc4 16.Bc1 Rac8 17.Nd1 Rfd8 18.b3 Nb6 19.Bb2 Rf8 20.Nf2 Nbd7 21.e5 dxe5 22.fxe5 Nd5 23.Nh3 Bc5 24.Ng5 Bxd4 25.Bxd4 h6 26.Be4 N7b6 27.Nxe6 fxe6 28.Qg6 Rf5 29.Rxf5 exf5 30.Bxf5 Kg8 31.Qh7+ 1-0
2025.08.09 III Aguascalientes Int
1223024 GM Obregon Rivero, J (2462) GM Gonzalez Zamora, J (2447) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Be7 4.O-O d6 5.a4 Nf6 6.d3 O-O 7.Re1 a6 8.h3 h6 9.Nc3 Re8 10.d4 exd4 11.Nxd4 Bd7 12.Bf4 Ne5 13.Bb3 Bf8 14.Nf5 Bxf5 15.exf5 c6 16.Bxe5 Rxe5 17.Rxe5 dxe5 18.Qf3 Qe7 19.Re1 Rd8 20.g3 Qc7 21.Ne4 Be7 22.Kg2 Kf8 23.Re2 Nxe4 24.Qxe4 Bf6 25.c3 Kg8 26.h4 Qd7 27.Qg4 b5 28.axb5 axb5 29.Qf3 c5 30.Bc2 b4 31.Be4 Qb5 32.cxb4 Qxb4 33.Bd5 Qd4 34.Ba2 Qa4 35.Bd5 Qd4 36.Be4 c4 37.Rc2 Qc5 38.Rc3 Qb4 39.Qe2 Rd4 40.Qc2 Bd8 41.b3 Rxe4 42.Qxe4 Qxc3 43.bxc4 Qd4 44.Qc6 Be7 45.h5 e4 46.Qe8+ Bf8 47.c5 Qxc5 48.Qxe4 Qe7 49.Qc4 Qg5 50.g4 Qd2 51.Qc8 Qf4 52.f3 Qd2+ 53.Kh3 Qd6 54.Qa8 Qe7 55.Qd5 Qe8 0-1
2025.08.08 III Aguascalientes Int
1222972 GM Obregon Rivero, J (2462) GM Miranda Mesa, E (2484) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 a6 5.d4 b5 6.cxd5 cxd5 7.Ne5 e6 8.Bd3 Bb7 9.O-O Nbd7 10.f4 Be7 11.a3 Ne4 12.a4 b4 13.Nxe4 dxe4 14.Bc4 O-O 15.a5 Nf6 16.Bd2 Nd5 17.Qa4 Rc8 18.Bxd5 Bxd5 19.Rfc1 Qd6 20.Qd7 Rcd8 21.Qxd6 Bxd6 22.Nc6 Rd7 23.Nxb4 Bxb4 24.Bxb4 Rb8 25.Be1 h6 26.b4 g5 27.fxg5 hxg5 28.Rab1 Kg7 29.Bg3 Rb5 30.Bc7 f5 31.g3 Kg6 32.Rb2 Rb7 33.Bb6 f4 34.b5 axb5 35.Rxb5 fxe3 36.Re1 e2 37.Rb4 Rdc7 38.Rb2 Rc3 39.a6 Rh7 40.Rbxe2 Ra3 41.a7 Rf7 42.Bc5 Ra4 43.g4 Rf4 44.h3 Ra6 45.Re3 Ra2 46.R3e2 Ra6 47.Rf2 Rf3 48.Rxf3 exf3 49.Rf1 Ra5 50.Rc1 Ra2 51.Rc3 Rg2+ 52.Kf1 Ra2 53.Bb6 Bb7 54.d5 Bxd5 55.Bc5 Ra1+ 56.Kf2 Ra2+ 57.Kf1 Kf6 58.Bd4+ e5 59.Be3 Ra1+ 60.Kf2 Ra2+ 61.Kf1 Ra1+ 62.Rc1 Ra3 63.Bf2 e4 64.Bd4+ Ke6 65.Re1 Ra2 66.Be3 Rg2 67.Rc1 Rh2 68.Rc5 Ra2 69.Rc3 Bb7 70.Rc1 Ra3 71.Kf2 Ra2+ 72.Kf1 Bd5 73.Rd1 Bc4+ 74.Kg1 Rg2+ 75.Kh1 Ra2 76.Rd2 Ra1+ 77.Kh2 Bd5 78.Kg3 Ra3 79.Kf2 Ra1 80.Rb2 Ra4 81.Rb6+ Kd7 82.Rb2 Ke6 83.Rb6+ Kd7 84.Rb2 Ke6 85.Rd2 Ra3 86.Rc2 Ra4 87.Bc5 Ra1 88.Kg3 Ra5 89.Be3 Ra3 90.Kf2 Ra4 91.Bc5 Ra5 92.Kg3 Ra4 93.Rb2 Kd7 94.Rd2 Ke6 95.Kf2 Ra5 96.Ke3 Ra1 97.Rb2 Bc6 98.Kf2 Ra5 99.Bb6 Ra4 100.Rc2 Bd5 101.Rc8 Ra2+ 102.Ke3 Re2+ 103.Kd4 Rd2+ 104.Kc3 Rd3+ 105.Kc2 Ra3 106.Re8+ Kf7 107.Re5 Ba8 108.Kb2 Ra6 109.Rf5+ Kg6 110.Be3 Rf6 111.Rxg5+ Kf7 112.Rf5 Rxf5 113.gxf5 Kf6 114.Kc3 Kxf5 115.Kd4 Kg6 1/2-1/2
2025.08.08 III Aguascalientes Int
1222998 FM Sandoval Mercado, Carlos (2398) GM Obregon Rivero, J (2462) 1/2-1/2
1.d4 d6 2.c4 e5 3.d5 f5 4.e4 Nf6 5.exf5 Bxf5 6.Ne2 Nbd7 7.Ng3 Bg6 8.Bd3 Bxd3 9.Qxd3 Nc5 10.Qe2 Be7 11.Nc3 O-O 12.Be3 Ncd7 13.h4 c6 14.dxc6 bxc6 15.Rd1 Nb6 16.Nf5 Qd7 17.Qd3 Rad8 18.c5 Nbd5 19.Nxd5 Nxd5 20.cxd6 Bxd6 21.Nxd6 Qxd6 22.Qc4 Qg6 23.O-O Rf7 24.Rfe1 h6 25.Rc1 Rd6 26.Qc5 Rdf6 27.b4 Qg4 28.b5 Nxe3 29.fxe3 Qxh4 30.Rf1 cxb5 31.Qxb5 Qe4 32.Qb3 Kh7 33.Rxf6 Rxf6 34.Qc2 Qxc2 35.Rxc2 Kg6 36.Rc5 Kf5 37.Ra5 a6 38.Ra4 h5 39.Kf2 g5 40.g3 e4 41.Kg2 g4 42.Ra5+ Kg6 43.Re5 Rc6 44.a4 Rc2+ 45.Kf1 Rc6 46.Rxe4 Kf5 47.Rb4 Rc2 48.Rd4 Ke5 49.Rb4 a5 50.Rf4 Ra2 51.Rd4 Rb2 52.Rf4 Rb4 53.Kf2 Rb1 54.Rd4 Rc1 55.Rf4 Rc2+ 56.Kf1 Kd5 57.Rd4+ Kc5 58.Rf4 Rd2 59.Re4 Rd1+ 60.Kf2 Rc1 61.Rf4 Rc4 62.Ke2 Rb4 63.Rf5+ Kb6 64.Rf6+ Kc7 65.Rf4 Kd6 66.Rf6+ Ke5 67.Rf4 Ke6 68.Kf2 Rb2+ 69.Kf1 Rd2 70.Rc4 Rd5 71.Rf4 Rf5 72.Kf2 Kf6 73.Kg2 Kg5 74.Kf2 Rc5 75.Kf1 h4 76.Rf8 h3 77.Kg1 Rc1+ 78.Kh2 Rc2+ 79.Kh1 Rc1+ 80.Kh2 Rc2+ 81.Kh1 Rg2 82.Rg8+ Kf5 83.e4+ 1/2-1/2
2025.08.07 III Aguascalientes Int
1222914 GM Obregon Rivero, J (2462) GM Martinez Alcantara, Jose Eduardo (2636) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c6 6.d4 d5 7.Qa4 Nbd7 8.cxd5 Nb6 9.Qa3 cxd5 10.Bf4 Nh5 11.Bg5 Re8 12.Nbd2 h6 13.Be3 Nf6 14.Rac1 Bg4 15.Bf4 Bxf3 16.Bxf3 e6 17.Bc7 Qe7 18.Bd6 Qd8 19.Bc7 Qe7 20.Bd6 Qd8 21.Bc7 Qe7 22.Bd6 Qd8 23.Rc2 1/2-1/2
2025.08.07 III Aguascalientes Int
1222943 GM Quesada Perez, Luis Ernesto (2550) GM Obregon Rivero, J (2462) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 e5 6.d5 a5 7.h4 Na6 8.h5 Nc5 9.Qc2 a4 10.Be3 b6 11.Bf3 Bd7 12.Nge2 Qc8 13.Ng3 c6 14.dxc6 Qxc6 15.hxg6 fxg6 16.Nd5 Kf7 17.O-O-O Rac8 18.Kb1 Be6 19.Bg5 Ncd7 20.Nf5 gxf5 21.Nxf6 Nxf6 22.exf5 Qxc4 23.fxe6+ Qxe6 24.Bxf6 Rxc2 25.Bd5 Qxd5 26.Rxd5 Rc5 27.Bxg7 Kxg7 28.Rxd6 b5 29.a3 h5 30.f3 h4 31.Rd2 Kf6 32.g3 h3 33.Rdh2 e4 34.Rxh3 Rxh3 35.Rxh3 exf3 36.g4 f2 37.Rf3+ Kg5 1/2-1/2
2025.08.06 III Aguascalientes Int
1222867 GM Obregon Rivero, J (2462) CM Galaviz Medina, Atlas Adomaitis (2155) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Be2 Qc7 8.O-O b5 9.f3 Bb7 10.a3 Nbd7 11.Qe1 d5 12.exd5 Bxd5 13.Rd1 Bc5 14.Nxd5 Nxd5 15.Bf2 Nf4 16.Kh1 O-O 17.Bg3 Nf6 18.c4 N6h5 19.Bxf4 Nxf4 20.b4 Bxd4 21.Rxd4 Rfd8 22.Re4 f5 23.Re3 bxc4 24.g3 Nd5 25.Rxe6 c3 26.Bd3 f4 27.Qe4 Nf6 28.Qc4 Qf7 29.Rc6 Nd5 30.Be4 fxg3 31.hxg3 Qh5+ 32.Kg2 Kh8 33.Bxd5 Qxd5 34.Qxd5 Rxd5 35.Rxc3 a5 36.Rfc1 h6 37.Rc8+ Rxc8 38.Rxc8+ Kh7 39.Rc5 Rd2+ 40.Kh3 axb4 41.axb4 Rd3 42.f4 Rb3 43.Rb5 Kg6 44.Kg4 Kh7 45.f5 Rd3 46.Rb7 Rd4+ 47.Kf3 Rd3+ 48.Ke4 Rd6 49.b5 h5 50.b6 Kh6 51.Re7 Rd1 52.b7 Rb1 53.Kd5 Kg5 54.Rf7 g6 55.fxg6 Kxg6 56.Rc7 Kf5 57.Kc6 Kg4 58.Rg7+ 1-0
2025.08.06 III Aguascalientes Int
1222892 IM Figueredo Losada, L (2302) GM Obregon Rivero, J (2462) 0-1
1.e4 d6 2.Nc3 e5 3.Bc4 c6 4.d3 Nf6 5.Nf3 Be7 6.O-O b5 7.Bb3 O-O 8.a4 b4 9.Ne2 Nbd7 10.a5 Nc5 11.Ba2 Qc7 12.Ng3 Rb8 13.Re1 b3 14.Bb1 bxc2 15.Bxc2 Na6 16.d4 Rd8 17.Bd2 c5 18.d5 Rxb2 19.Bc3 Rb8 20.Nh4 g6 21.Qd2 Nb4 22.Nf3 Nxc2 23.Qxc2 Ba6 24.Qc1 Qd7 25.h3 Qb5 26.Qh6 Qe8 27.Nh2 Rb3 28.Rac1 Bf8 29.Qh4 Bg7 30.Bd2 Nd7 31.Ng4 f6 32.Bh6 Qe7 33.Bxg7 Qxg7 34.Re3 Rxe3 35.Nxe3 Kh8 36.Rc3 Bc8 37.Ne2 Rf8 38.Ng3 h5 39.Nc4 Qe7 40.Nxd6 Qxd6 41.Nf5 Qb8 42.Rg3 Qb1+ 43.Kh2 Qc1 44.Ne7 Qh6 45.Nxg6+ Kh7 46.Nxf8+ Nxf8 47.Rc3 Nd7 48.Rf3 c4 49.Rf5 Kg6 50.Qg3+ Kf7 51.Qa3 Qf8 52.Qf3 Qc5 53.Rxh5 c3 54.Rh7+ Ke8 55.Rh8+ Ke7 56.Qg4 Kd6 57.Qe6+ Kc7 58.Qe8 Kb8 59.Qxd7 a6 60.Qa4 c2 61.Rxc8+ Qxc8 0-1
2025.08.05 III Aguascalientes Int
1222840 FM Cofre Archibold, Nestor (2226) GM Obregon Rivero, J (2462) 1/2-1/2
1.c4 g6 2.Nc3 Bg7 3.g3 Nf6 4.Bg2 O-O 5.Nf3 c5 6.O-O Nc6 7.d4 cxd4 8.Nxd4 Qa5 9.Nb3 Qb4 10.c5 d6 11.cxd6 exd6 12.Bd2 Qc4 13.Rc1 Qa6 14.Bg5 h6 15.Bxf6 Bxf6 16.Qxd6 Bxc3 17.Rxc3 Qxe2 18.Qf6 Re8 19.Nc5 Qe5 20.Qh4 Qg7 21.Qa4 Rb8 22.h4 Be6 23.Re3 b5 24.Qf4 Nd4 25.b3 g5 26.hxg5 hxg5 27.Qe5 Qxe5 28.Rxe5 Bf5 29.Rfe1 Kf8 30.f4 gxf4 31.gxf4 f6 32.Rxe8+ Rxe8 1/2-1/2
2025.08.04 III Aguascalientes Int
1222813 GM Obregon Rivero, J (2462) Hernandez Rendon, Carlos A (2015) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 c6 5.e4 O-O 6.d4 d6 7.Bg2 Qc7 8.h3 Nbd7 9.O-O e5 10.Be3 Re8 11.d5 Nc5 12.Nd2 a5 13.a3 Bd7 14.b4 Na6 15.Qb3 axb4 16.axb4 Nh5 17.c5 Bf8 18.Qc4 Qc8 19.Kh2 Kg7 20.dxc6 bxc6 21.Na4 Be6 22.Qc3 Qb7 23.Nb6 Rad8 24.g4 Nf6 25.f4 Bxg4 26.fxe5 dxe5 27.Bg5 Re6 28.Rxf6 Rxf6 29.Bxf6+ Kxf6 30.hxg4 Kg7 31.Nf3 Nc7 32.Bf1 Ne6 33.Bc4 Nd4 34.Nxe5 Qe7 35.Qg3 Re8 36.Nxf7 Qxe4 37.Rf1 Nc2 38.Ng5 Qe5 39.Qxe5+ 1-0
2025.07.15 Titled Tue 15th Jul Late
15302 FM Brancaleoni, M (2185) GM Obregon Rivero, J (2462) 0-1
1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 O-O 5.e3 c6 6.Be2 d6 7.O-O a5 8.b5 a4 9.Na3 e5 10.d3 Nbd7 11.bxc6 bxc6 12.Rb1 Re8 13.h3 e4 14.dxe4 Nxe4 15.Bxg7 Kxg7 16.Qd4+ Qf6 17.Rfc1 Ndc5 18.Rb6 Bd7 19.Kf1 Rab8 20.Rbb1 Kg8 21.Qxf6 Nxf6 22.Nd2 Bf5 23.Rxb8 Rxb8 24.Ke1 Rb2 25.Ra1 Nfe4 26.Nxe4 Bxe4 27.f3 Bd3 28.Bxd3 Nxd3+ 29.Kf1 Rf2+ 30.Kg1 Rd2 31.Kf1 Kf8 32.Nb1 Rf2+ 33.Kg1 Rc2 34.Na3 Rc3 35.Nb1 Rc1+ 36.Kh2 a3 37.Kg3 Nb4 38.Kf2 Nc2 39.Nxa3 Rxa1 40.Nxc2 Rxa2 0-1
2025.07.01 Titled Tue 1st Jul Late
33042 GM Obregon Rivero, J (2477) FM Hadzovic, A (2354) 1-0
1.e4 e5 2.Nf3 Nc6 3.d3 Bc5 4.Nbd2 d6 5.c3 f5 6.Qc2 Nf6 7.h3 O-O 8.Be2 fxe4 9.dxe4 Qe8 10.g4 Kh8 11.Nc4 d5 12.exd5 Nxd5 13.Ne3 Nf4 14.Ng5 g6 15.Ne4 Bxe3 16.Bxe3 Ng2+ 17.Kd2 Nxe3 18.fxe3 Be6 19.Raf1 Bd5 20.Kc1 Qe7 21.h4 Rxf1+ 22.Rxf1 Rf8 23.Rxf8+ Qxf8 24.g5 Qf5 25.Nf6 Qxc2+ 26.Kxc2 Bf7 27.Bf3 Nd8 28.a3 Kg7 29.Kd3 h6 30.Ke4 hxg5 31.hxg5 Ne6 32.Kxe5 Nxg5 33.Bxb7 Ne6 34.b4 Kf8 35.Bd5 Ke7 36.Bxe6 Bxe6 37.Ne4 Bc8 38.Ng5 Bd7 39.e4 Bc8 40.c4 Ba6 41.b5 Bb7 42.Kf4 Kd6 43.Ke3 Kc5 44.Kd3 Bc8 45.Kc3 Bd7 46.e5 Bf5 47.a4 c6 48.bxc6 Kxc6 49.a5 Kc5 50.Kb3 1-0
2025.07.01 Titled Tue 1st Jul Late
32798 FM Dobrocmyslov, A (2260) GM Obregon Rivero, J (2477) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d4 cxd4 6.Nxd4 O-O 7.Nb3 Nc6 8.c4 d6 9.Nc3 Qb6 10.Be3 Qa6 11.c5 d5 12.Nxd5 Nxd5 13.Qxd5 Rd8 14.Qe4 Bxb2 15.Rad1 Rxd1 16.Rxd1 Qxe2 17.Bf3 Qa6 18.Rd2 Bf5 19.Qh4 Qxa2 20.Nd4 Nxd4 21.Bxd4 Qa1+ 22.Rd1 Qa3 23.Bxb7 Rd8 24.Qxe7 Rxd4 25.Qe8+ Kg7 26.Qe5+ Kh6 27.Rxd4 Qa1+ 28.Kg2 Bxd4 29.Qf4+ Kg7 30.c6 Be5 31.Qc4 Bc7 32.Ba6 Qe5 33.f3 Be6 34.Qe2 Qxe2+ 35.Bxe2 a5 36.Bb5 Bb3 37.f4 a4 38.Kf3 a3 0-1
2025.07.01 Titled Tue 1st Jul Late
33371 CM Baturin-Vinogradov, Miroslav (2046) GM Obregon Rivero, J (2477) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Nxc6 bxc6 7.Be2 g6 8.O-O Bg7 9.Be3 O-O 10.Qd2 Qc7 11.Bh6 Rb8 12.Bxg7 Kxg7 13.b3 Qa5 14.Rad1 Be6 15.Qe3 d5 16.exd5 cxd5 17.Na4 Rfc8 18.Bd3 Qc7 19.Rfe1 Kg8 20.Qg3 Qxg3 21.hxg3 Kf8 22.a3 Bf5 23.Bxf5 gxf5 24.Re2 e6 25.f3 Rc7 26.Kf2 Rbc8 27.Rdd2 h5 28.Nb2 Kg7 29.Nd3 Rh8 30.Ne5 h4 31.gxh4 Rxh4 32.Re1 Ne8 33.c4 Nf6 34.cxd5 Nxd5 35.Nc4 Rh8 36.Ne3 Nf6 37.Nc4 Rb8 38.Rd3 Nd5 39.Ne3 Nf4 40.Rd4 Ng6 41.b4 Rc3 42.Ra1 Ne5 43.Ke2 Kf6 44.Rd6 f4 45.Nd5+ Kf5 46.Nxc3 Rc8 47.Rc1 Nc4 48.Ne4 Ke5 49.Rd3 1-0
2025.07.01 Titled Tue 1st Jul Late
33189 GM Obregon Rivero, J (2477) IM Sabuk, P (2321) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 c5 4.O-O e6 5.d4 cxd4 6.Nxd4 e5 7.Nb3 Be6 8.c4 Nc6 9.cxd5 Bxd5 10.Nc3 Bxg2 11.Qxd8+ Rxd8 12.Kxg2 Bb4 13.Bg5 Bxc3 14.bxc3 Kd7 15.Bxf6 gxf6 16.Rfd1+ Kc7 17.Kf3 Ne7 18.Ke4 Rhg8 19.h3 b6 20.Rd3 Nc8 21.Rad1 Nd6+ 22.Ke3 f5 23.Rd5 Kc6 24.Kf3 f6 25.c4 Nf7 26.Rxd8 Nxd8 27.e4 fxe4+ 28.Kxe4 Nf7 29.Kf5 Nd6+ 30.Kxf6 Nxc4 31.Kf7 Rg5 32.g4 e4 33.Nd4+ Kb7 34.Nf5 Rg6 35.Rd4 Ne5+ 36.Kf8 Rf6+ 37.Kg8 h5 38.Rxe4 hxg4 39.hxg4 Nxg4 40.Rxg4 Rxf5 41.f4 Ra5 42.Rg2 Rf5 43.Rf2 Kc6 44.Kg7 Kd5 45.Kg6 Rf8 46.f5 b5 47.f6 a6 48.f7 Kc4 49.Kg7 Rc8 50.Rc2+ Kb4 51.Rxc8 Ka3 1-0
2025.07.01 Titled Tue 1st Jul Late
33460 FM Eswaran, Ashritha (2236) GM Obregon Rivero, J (2477) 1-0
1.e4 c5 2.Nf3 d6 3.Nc3 Nf6 4.e5 dxe5 5.Nxe5 Nbd7 6.d4 cxd4 7.Qxd4 e6 8.Bf4 a6 9.O-O-O Be7 10.g4 Nxe5 11.Qxe5 Qb6 12.g5 Nh5 13.Be3 Qc6 14.Be2 Nf6 15.gxf6 Bxf6 16.Qd6 Qxd6 17.Rxd6 O-O 18.Rhd1 Be5 19.Rd8 Bc7 20.Rxf8+ Kxf8 21.Bc5+ Ke8 22.Bf3 Bxh2 23.Bb6 Bd7 24.Kb1 Rc8 25.Rh1 Be5 26.Rxh7 g6 27.Be3 Bc6 28.Ne4 Rd8 29.Kc1 Bd4 30.Bg5 Rd5 31.Bf6 1-0
2025.05.20 Titled Tue 20th May Late
81669 GM Pranesh, M (2576) GM Obregon Rivero, J (2476) 1-0
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 h6 5.Bh4 O-O 6.e4 d6 7.Bd3 c5 8.dxc5 dxc5 9.e5 Ng4 10.Qe2 Nc6 11.e6 Bxe6 12.Bxg6 Bxb2 13.Rb1 Nd4 14.Nxd4 Qxd4 15.O-O Qe5 16.Qxe5 Bxe5 17.Be4 Bxh2+ 18.Kh1 Bf4 19.Nf3 Bd6 20.Rxb7 a5 21.Bxe7 Bxe7 22.Rxe7 Rab8 23.a3 Bc4 24.Bd3 Bxd3 25.cxd3 Rb3 26.d4 cxd4 27.Nxd4 Rxa3 28.Nf5 Kh7 29.f3 Nf6 30.Rc1 Nd5 31.Rd7 Ne3 32.Nd6 Kg6 33.Rc6 f6 34.Rcc7 Rg8 35.Nc8 Kg5 36.Rd4 Ra1+ 37.Kh2 Ra2 38.Kh3 Rxg2 39.Ne7 Rg1 40.Nxg8 Rh1+ 41.Kg3 Nf5+ 42.Kg2 Nxd4 43.Kxh1 Nxf3 44.Ra7 f5 45.Rxa5 h5 46.Ne7 Nh4 47.Nd5 f4 48.Ne3+ Kg6 49.Ng2 Nf5 50.Nxf4+ Kg5 1-0
2025.05.20 Titled Tue 20th May Late
82181 IM Tologontegin, S (2313) GM Obregon Rivero, J (2476) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.h3 d6 6.Nf3 e5 7.dxe5 dxe5 8.Qxd8 Rxd8 9.Bg5 c6 10.Nxe5 Re8 11.f4 Nh5 12.Kf2 f6 13.g4 fxg5 14.gxh5 gxf4 15.Nd3 Bxc3 16.bxc3 Rxe4 17.Kf3 Rxc4 18.hxg6 hxg6 19.Rg1 Bf5 20.Ne5 Rxc3+ 21.Kxf4 Kg7 22.Rd1 Na6 23.Rd6 Rf8 24.Nxg6 Bxg6+ 25.Ke5 Rc5+ 26.Kd4 Rf4+ 27.Ke3 Re4+ 28.Kf3 Rc3+ 29.Bd3 Rxd3+ 30.Rxd3 Re6 31.Rd7+ Kf6 32.Rxb7 Nc5 33.Rxa7 Nd3 34.a4 Bh5+ 35.Kg3 Re3+ 36.Kh2 Nf4 37.Rg3 Re2+ 38.Kh1 Bg6 39.a5 Ra2 40.Kg1 Ne2+ 41.Kf2 Nxg3+ 42.Kxg3 Ra3+ 43.Kg4 Bf5+ 44.Kf4 Ra4+ 45.Ke3 Bxh3 46.Kd3 Bg2 47.Kc3 Ke6 48.Kb3 Ra1 49.a6 Kd6 50.Ra8 Kc5 51.Ra7 Bd5+ 52.Kb2 Ra5 53.Kb1 Kb6 54.Ra8 Rxa6 0-1
2025.05.20 Titled Tue 20th May Late
81939 GM Obregon Rivero, J (2476) IM Materia, Marco (2489) 0-1
1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.c4 c6 5.Qa4 dxc4 6.Qxc4 Bg7 7.O-O O-O 8.d3 Nbd7 9.Qh4 e5 10.Nc3 Qe7 11.Bg5 Qd6 12.Rfd1 Re8 13.Nd2 Qf8 14.Rab1 a5 15.a3 h6 16.Be3 Nc5 17.Bxh6 Bxh6 18.Qxf6 Bg7 19.Qh4 f5 20.b4 axb4 21.axb4 Ne6 22.Qc4 Kh7 23.b5 Nd4 24.bxc6 bxc6 25.Bxc6 Be6 26.Bd5 Rac8 27.Bxe6 Rxe6 28.Qa2 Rxc3 29.e3 Rc2 30.Qd5 Rd6 31.Qg2 Ne2+ 32.Kf1 Nc3 33.Rbc1 Rxc1 34.Rxc1 Rxd3 35.Nf3 e4 36.Ng5+ Kg8 37.Qh3 Qf6 38.Qh7+ Kf8 39.Qh4 Ke8 40.Kg2 Rd2 41.Ra1 Nd1 42.Ra8+ Kd7 43.Ra7+ Kc8 44.Qh7 Qxg5 45.Qg8+ Qd8 46.Qc4+ Kb8 47.Qa6 Nxe3+ 48.Kh3 Qh8# 0-1
2025.05.20 Titled Tue 20th May Late
81744 GM Obregon Rivero, J (2476) FM Wartiovaara, Oliver (2323) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 d6 6.d3 e5 7.h3 Nc6 8.Bg5 h6 9.Be3 Re8 10.Qd2 Kh7 11.g4 Nd7 12.h4 Nc5 13.h5 g5 14.Bxg5 hxg5 15.Nxg5+ Kg8 16.h6 Bf6 17.h7+ Kg7 18.Nge4 Nxe4 19.Nxe4 Kh8 20.O-O-O Bxg4 21.Bh3 Bxh3 22.Rxh3 1-0
2025.05.20 Titled Tue 20th May Late
82028 FM Eminov, O (2239) GM Obregon Rivero, J (2476) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Nf6 5.Nc3 g6 6.d4 cxd4 7.Nxd4 Bg7 8.O-O O-O 9.f3 Nc6 10.Bxc6 bxc6 11.Be3 c5 12.Nde2 Bc6 13.Qd2 Nd7 14.Bh6 a5 15.Bxg7 Kxg7 16.f4 a4 17.Rad1 Qb6 18.f5 Rab8 19.Rb1 Qb4 20.b3 axb3 21.axb3 Qa3 22.fxg6 hxg6 23.Qg5 f6 24.Qg3 Ne5 25.Nf4 Rxb3 26.Rxb3 Qxb3 27.Ne6+ Kf7 28.Nxf8 Kxf8 29.Qh3 Qxc4 30.Qh8+ Kf7 31.Qh7+ Ke8 32.Qh8+ Kd7 33.Nd5 Qxe4 34.Nb6+ Kc7 35.Na8+ Bxa8 36.Rf2 Ng4 0-1
2025.05.20 Titled Tue 20th May Late
82286 GM Obregon Rivero, J (2476) GM Deac, Bogdan-Daniel (2668) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.c4 O-O 6.b3 b6 7.Bb2 Bb7 8.e3 c5 9.Nc3 Qc8 10.Qe2 Rd8 11.d3 Nc6 12.Ne1 d4 13.Nd1 dxe3 14.fxe3 Qd7 15.Nc3 Ne5 16.Rd1 Bxg2 17.Nxg2 Ng6 18.Nf4 Qc6 19.Nh5 Nxh5 20.Qxh5 f6 21.d4 cxd4 22.exd4 Rd7 23.d5 Bc5+ 24.Kg2 exd5 25.Nxd5 Re8 26.Qf3 Rd6 27.Rfe1 Ne5 28.Bxe5 fxe5 29.Rf1 h6 30.Qe4 Bd4 31.a4 a6 32.Rfe1 Rde6 33.Rc1 Qd6 34.Rf1 Kh8 35.Rf7 Rf8 36.Rcf1 Ree8 37.Ne7 Rxf7 38.Rxf7 Qe6 39.Ng6+ Kg8 40.Rf3 Rd8 41.h4 Re8 42.h5 Qd6 43.Qf5 Rd8 44.Qf7+ Kh7 45.Nf8+ Kh8 46.Ne6 Rg8 47.Nf8 e4 48.Ng6+ Kh7 49.Rf4 Bc5 50.Qf5 Qd2+ 51.Kh3 1-0
2025.05.20 Titled Tue 20th May Late
81539 GM Obregon Rivero, J (2476) GM Carlsen, Magnus (2837) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.a4 Nbd7 11.a5 Rc8 12.Qd2 Qc7 13.Rfd1 h6 14.f3 Rfd8 15.Bf1 Qb8 16.Nd5 Bxd5 17.exd5 e4 18.f4 Ng4 19.c4 Nxe3 20.Qxe3 Bf6 21.Rab1 Re8 22.Nd4 Bxd4 23.Rxd4 b6 24.axb6 Qxb6 25.b4 a5 26.b5 a4 27.Kf2 Nc5 28.Be2 Ra8 29.Rb2 a3 30.Ra2 Ra4 31.g3 Rea8 32.h4 Qa7 33.Kg2 Rb4 34.f5 Rb3 35.Qf4 Rb2 36.Rd2 Rxd2 37.Qxd2 Qa4 38.f6 Qb3 39.fxg7 e3 40.Qd4 Qxa2 41.Qg4 Qb2 0-1
2025.05.20 Titled Tue 20th May Late
81029 GM Leenhouts, K (2476) GM Obregon Rivero, J (2476) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 g6 7.O-O Bg7 8.Be3 O-O 9.Kh1 Nxd4 10.Bxd4 Bd7 11.f3 Bc6 12.Qd2 a5 13.Rad1 Nd7 14.Bxg7 Kxg7 15.Nd5 Bxd5 16.Qxd5 Qb6 17.Qd4+ Kg8 18.Qxb6 Nxb6 19.Rd4 Rfc8 20.c3 Rc5 21.Rfd1 Rac8 22.Kg1 Kf8 23.Kf2 Nd7 24.Ke3 b5 25.a4 bxa4 26.Rxa4 Nb6 27.Rad4 a4 28.R1d2 a3 29.bxa3 Rxc3+ 30.R2d3 Nc4+ 31.Kf2 Nxa3 32.Rxc3 Rxc3 33.Ra4 Nc2 34.h4 h6 35.g4 g5 36.hxg5 hxg5 37.Ra5 Nd4 38.Bd1 Rd3 39.Be2 Rc3 40.Bd1 f6 41.Ra2 Rc1 42.Rd2 Ne6 43.Bb3 Nc5 44.Bd5 Rc3 45.Rb2 Nd3+ 0-1
2025.05.20 Titled Tue 20th May Late
81290 GM Sarana, A (2686) GM Obregon Rivero, J (2476) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Be3 Nc6 7.d5 Ne5 8.f4 Neg4 9.Bd2 Nh6 10.Nf3 c6 11.O-O b5 12.dxc6 b4 13.Nd5 Nxe4 14.Be1 e6 15.Nxb4 Qb6+ 16.Kh1 Ng4 17.Nd3 Ne3 18.Qa4 Nxf1 19.Bxf1 a5 20.Rb1 Ra6 21.Nc1 Qxc6 22.Qxc6 Rxc6 23.Bxa5 Ba6 24.b3 d5 25.cxd5 exd5 26.Ne2 Bxe2 27.Bxe2 Rc2 28.Bb5 Rxa2 29.Bb4 Nc3 30.Bxc3 Bxc3 31.Bc6 d4 32.Bb5 Rfa8 33.Kg1 Ra1 34.Rxa1 Rxa1+ 35.Kf2 Kf8 36.Bc4 f6 37.g4 Ke7 38.g5 Ra2+ 39.Kf1 fxg5 40.fxg5 Kd6 41.h4 Kc5 42.Ne5 Rh2 43.Nf3 Rb2 44.Ne5 Rb1+ 45.Kg2 Kb4 46.Nd3+ Ka3 47.Bg8 Rd1 48.Nf2 Rd2 49.Bxh7 d3 50.Bxg6 Bd4 51.Bxd3 Bxf2 52.Kf3 Bxh4 53.Bc4 Bxg5 54.Ke4 Be7 55.Ke5 Bb4 56.Ke4 Kb2 57.Bg8 Kc3 58.Ke3 Bc5+ 59.Ke4 Bd4 60.Bc4 Rd1 61.Kd5 Re1 62.Kd6 Re5 63.Bd5 Rg5 64.Bc4 Be5+ 65.Kd5 Bg3+ 66.Ke4 Kb4 67.Kd4 Be5+ 68.Kd5 Bc3+ 69.Kd6 Ka5 70.Kc6 Be5 71.Kd5 Bg3+ 72.Kc6 Kb4 73.Kd7 Rg6 74.Bf7 Rd6+ 75.Ke7 Kc5 76.Be6 Kd4 77.Kf6 Bh4+ 78.Kf5 Rb6 79.Bc4 Rc6 80.Kg4 Bd8 81.Kf5 Rf6+ 82.Kg5 Ke5 83.Kg4 Rf4+ 84.Kg3 Bh4+ 85.Kg2 Kd4 86.Kh3 Ke3 87.Kg2 Be1 88.Bd5 Rg4+ 89.Kh3 Rg5 90.Bc6 Kf4 91.Bd7 Bg3 92.Be6 Rh5+ 93.Kg2 Rh2+ 94.Kg1 Ke3 95.Bd5 Bd6 96.Bc4 Kf3 97.Bd5+ Kg3 98.Kf1 Bb4 99.Bc4 Rf2+ 100.Kg1 Bc5 101.Kh1 Rg2 102.Bf1 Rg1# 0-1
2025.05.20 Titled Tue 20th May Late
81358 GM Obregon Rivero, J (2476) IM Galchenko, Matvey (2442) 1-0
1.Nf3 c5 2.g3 g6 3.c3 Bg7 4.d4 b6 5.Bg2 Bb7 6.O-O Nf6 7.Re1 O-O 8.Nbd2 cxd4 9.Nxd4 Bxg2 10.Kxg2 d5 11.Qa4 e5 12.N4b3 Qc7 13.e4 Qb7 14.exd5 Qxd5+ 15.Kg1 Nbd7 16.Ne4 Nxe4 17.Qxe4 Qxe4 18.Rxe4 f5 19.Re1 e4 20.Bf4 h6 21.Rad1 Rf7 22.Rd5 g5 23.Be3 Ne5 24.Red1 Nd3 25.Rd2 Re8 26.f4 gxf4 27.gxf4 h5 28.Rg2 Ne1 29.Rg3 h4 30.Rg6 Kh7 31.Rgd6 Rg8 32.Kf1 Nf3 33.h3 Bh6 34.Rd7 Rgg7 35.Rxf7 Rxf7 36.Nd4 Nxd4 37.cxd4 Kg6 38.Rd6+ Kh5 39.d5 Bf8 40.Rd8 Kg6 41.Bd4 Bc5 42.Be5 a5 43.d6 a4 44.d7 Be7 45.Rg8+ Kh5 46.Re8 1-0
2025.05.13 Titled Tue 13th May Late
89361 FM Denishev, M (2111) GM Obregon Rivero, J (2476) 0-1
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 c5 6.d5 d6 7.e4 a6 8.Nge2 b5 9.cxb5 a5 10.a4 Bb7 11.O-O e6 12.Nf4 e5 13.Nd3 Nbd7 14.b3 Nb6 15.Nb2 Nfd7 16.Nc4 Nxc4 17.bxc4 Nb6 18.Qd3 f5 19.Bb2 Bc8 20.f4 exf4 21.gxf4 fxe4 22.Bxe4 Qh4 23.Kh1 Bh3 24.Rf3 Bg4 25.Rg3 Rxf4 26.Rag1 Bd4 27.Bxg6 Bxg1 28.Kxg1 Raf8 29.Ne4 Rf1+ 30.Qxf1 Rxf1+ 31.Kxf1 hxg6 32.Rxg4 Qh3+ 33.Kg1 Qxg4+ 0-1
2025.05.13 Titled Tue 13th May Late
87827 GM Obregon Rivero, J (2476) CM Smieszek, W (2141) 1-0
1.Nf3 Nf6 2.c4 c5 3.g3 Nc6 4.Bg2 g6 5.Nc3 Bg7 6.d3 O-O 7.h3 d5 8.cxd5 Nxd5 9.Bd2 b6 10.O-O Bb7 11.Rc1 Nd4 12.Nxd4 Nxc3 13.bxc3 Bxg2 14.Kxg2 cxd4 15.Qb3 Rc8 16.c4 Rc5 17.a4 Qd7 18.f3 Re5 19.Rf2 Qe6 20.Re1 h5 21.Bf4 Rc5 22.Qb4 g5 23.Bd2 h4 24.g4 Qd6 25.Rh1 Rfc8 26.Qb3 a6 27.Bb4 Qg3+ 28.Kf1 Re5 29.Bd2 b5 30.Rg2 bxc4 31.Qb7 Qxg2+ 32.Kxg2 Rxe2+ 33.Kf1 Rxd2 34.Qxc8+ Kh7 1-0
2025.05.13 Titled Tue 13th May Late
88600 GM Obregon Rivero, J (2476) GM Martinez Alcantara, Jose Eduardo (2611) 0-1
1.Nf3 c5 2.c4 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nc3 d6 6.d3 e6 7.O-O Nge7 8.Rb1 O-O 9.a3 h6 10.Bd2 b6 11.b4 Bb7 12.Qa4 Qd7 13.Rfc1 Rad8 14.b5 Nd4 15.Nxd4 cxd4 16.Na2 Bxg2 17.Kxg2 f5 18.Nb4 Rc8 19.Qb3 Kh7 20.a4 g5 21.f3 g4 22.Ra1 gxf3+ 23.exf3 h5 24.a5 Ng6 25.axb6 axb6 26.Nc6 f4 27.Ra7 Rc7 28.Rxc7 Qxc7 29.Ra1 Qf7 30.Ra7 Qf5 31.Nxd4 Qf6 32.gxf4 Nh4+ 33.Kh3 Kg8 34.Ne2 Nxf3 35.Bc3 Qf5+ 36.Kg3 Qg4+ 37.Kf2 e5 38.c5+ Kh8 39.cxd6 Nh4 40.Qd5 Ng6 41.Ke1 Qxe2+ 42.Kxe2 Nxf4+ 43.Kd2 Nxd5 44.Bb2 Rd8 45.d7 Kg8 46.Ba3 Kf7 47.Rb7 Ke6 48.d4 Rxd7 49.Rxd7 Kxd7 50.dxe5 Bxe5 51.h3 Nf4 52.Ke3 Nxh3 53.Ke4 Bd6 54.Bc1 Nf2+ 55.Kf5 Nd3 56.Be3 Bc5 57.Bd2 Nf2 58.Be1 h4 59.Bd2 h3 60.Bf4 Bd6 0-1
2025.05.13 Titled Tue 13th May Late
88860 GM Bortnyk, Olexandr (2601) GM Obregon Rivero, J (2476) 1-0
1.d4 Nf6 2.Nc3 g6 3.e4 d6 4.Bg5 h6 5.Bh4 Bg7 6.e5 Nfd7 7.f4 g5 8.fxg5 dxe5 9.dxe5 Bxe5 10.Nf3 hxg5 11.Bxg5 Bf6 12.Qd2 Bxg5 13.Qxg5 e6 14.Qg3 Nf6 15.Bb5+ c6 16.Bd3 Nbd7 17.O-O-O Qa5 18.Rhe1 Rg8 19.Qh4 Rxg2 20.Ne5 Nxe5 21.Qxf6 Nxd3+ 22.Kb1 Qg5 23.Qh8+ Qg8 24.Qd4 Bd7 25.Rxd3 O-O-O 26.Qxa7 e5 27.Red1 Kc7 28.Ne4 Qg6 29.Nc5 1-0
2025.05.13 Titled Tue 13th May Late
89119 GM Leitao, R (2596) GM Obregon Rivero, J (2476) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.Kb1 Be7 10.Nxc6 Bxc6 11.f3 Qc7 12.h4 h6 13.Be3 h5 14.Bd3 d5 15.exd5 Nxd5 16.Nxd5 Bxd5 17.Bf4 Qb6 18.Be5 O-O 19.Bd4 Qc7 20.Rhe1 Rfd8 21.Be5 Qb6 22.Qf4 Rac8 23.Qg3 f6 24.Qg6 fxe5 25.Qh7+ Kf8 26.Qh8+ Kf7 27.Qxh5+ Kf8 28.Qh8+ Kf7 29.Qh5+ Kf8 30.Qh8+ Kf7 31.Qh5+ 1/2-1/2
2025.05.13 Titled Tue 13th May Late
88124 GM Khenkin, I (2499) GM Obregon Rivero, J (2476) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.c3 O-O 6.d4 Qc7 7.dxc5 Qxc5 8.Nfd2 d6 9.Nb3 Qh5 10.e4 Bg4 11.f3 Bd7 12.Be3 Nc6 13.Na3 g5 14.Qd2 g4 15.f4 Rac8 16.Rad1 Rfd8 17.Rfe1 a5 18.Bb6 Re8 19.Qf2 Be6 20.Be3 a4 21.Nc1 Qa5 22.Nc2 Nd7 23.a3 Nc5 24.Nb4 Nb3 25.Ncd3 Nxb4 26.Nxb4 Qb5 27.Nd5 Nc5 28.Nb4 Bb3 29.Rd2 Red8 30.Qe2 Qxe2 31.Rexe2 Bc4 32.Re1 Nb3 33.Rdd1 e6 34.Bb6 Rd7 35.e5 d5 36.Bd4 Nxd4 37.cxd4 Bf8 38.Rc1 Rdc7 39.Rc3 Bb3 40.Rec1 Rxc3 41.Rxc3 Rxc3 42.bxc3 Bc4 43.Kf2 h5 44.Bf1 Bxf1 45.Kxf1 b5 46.Ke2 Kh7 47.Kd3 Kg6 48.Ke3 h4 49.Nc2 h3 50.Nb4 Kf5 51.Nc2 Kg6 52.Nb4 Be7 53.Nc2 f6 54.Nb4 fxe5 55.fxe5 Bg5+ 56.Ke2 Bc1 57.Nc2 Kf5 58.Kd3 Kg5 59.Ke2 Kg6 60.Kd1 Bb2 61.Kd2 Kf5 62.Kd3 Bc1 63.Ke2 Ke4 64.Kd1 Bg5 65.Ke2 Bh6 66.Nb4 Be3 67.Nc2 Bg1 68.Nb4 Bxh2 69.Kf2 Bxg3+ 70.Kxg3 Ke3 71.Nc6 Kd2 72.Nd8 Kxc3 73.Nxe6 b4 74.Nf4 bxa3 75.e6 a2 76.Ne2+ Kb2 77.e7 a1=Q 78.e8=Q Qa3+ 79.Kxg4 Qd3 80.Nf4 Qxd4 81.Qe2+ Kb3 82.Qf3+ Kc4 83.Qxh3 Kb4 84.Qf1 Qg7+ 85.Kf3 Qc3+ 86.Kg4 Qc4 87.Qb1+ Ka5 88.Qb8 a3 89.Qa7+ Kb4 90.Qb6+ Kc3 91.Kf5 a2 92.Qa5+ Kb2 93.Qd2+ Ka3 94.Qa5+ Kb2 95.Qd2+ Ka3 96.Qa5+ Kb2 1/2-1/2
2025.05.13 Titled Tue 13th May Late
88396 WFM Zahedifar, Anahita (2143) GM Obregon Rivero, J (2476) 0-1
1.c4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 Qb6 9.Nc2 d6 10.b3 Be6 11.e4 Rfc8 12.Rb1 a6 13.a4 Qd8 14.Nd5 Nd7 15.f4 Rab8 16.f5 Bxd5 17.exd5 Nce5 18.fxg6 hxg6 19.Nd4 Nc5 20.Bg5 Qd7 21.Kh1 Rc7 22.Be3 Qg4 23.Qd2 Rbc8 24.Bg1 Bf6 25.Rf4 Bg5 26.Rbf1 Qh5 27.Qc3 Bxf4 28.Rxf4 Qd1 29.Rf1 Qd3 30.Qc2 Qxc2 31.Nxc2 Nxb3 32.Ne3 Nd2 33.Rd1 Ndxc4 34.Nf1 Nb2 35.Rb1 Nxa4 36.Bh3 Ra8 37.Ne3 b5 38.Nd1 f5 39.Ra1 Rac8 40.Bd4 Rc1 0-1
2025.05.13 Titled Tue 13th May Late
88654 GM Obregon Rivero, J (2476) FM Annaberdiyev, B (2208) 1-0
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.c3 e5 6.d3 Nge7 7.a3 a5 8.a4 O-O 9.e4 d6 10.Na3 h6 11.Nc4 f5 12.Nfd2 f4 13.g4 g5 14.f3 Kh7 15.b3 Ng6 16.Bb2 Nh4 17.h3 Be6 18.Re1 Rc8 19.Qe2 Qe7 20.Rad1 Rcd8 21.Nb6 Qf7 22.Ndc4 Bf6 23.Bh1 Qg7 24.Nd5 Bxd5 25.exd5 Ne7 26.Nxa5 Nxd5 27.Qe4+ Kh8 28.Qxd5 b6 29.Nc4 Be7 30.Nxb6 Rb8 31.Nd7 1-0
2025.05.13 Titled Tue 13th May Late
88193 GM Obregon Rivero, J (2476) IM Barseghyan, Armen Ar. (2348) 1-0
1.Nf3 Nf6 2.c4 c5 3.g3 g6 4.Nc3 Bg7 5.Bg2 O-O 6.d3 Nc6 7.h3 d6 8.Bg5 Rb8 9.Qd2 Re8 10.Bh6 Bh8 11.O-O a6 12.a4 Bd7 13.e4 Nd4 14.Nxd4 cxd4 15.Ne2 e5 16.b4 a5 17.b5 Bc8 18.Bg5 Qc7 19.Bxf6 Bxf6 20.f4 Bg7 21.f5 f6 22.h4 b6 23.Bh3 Rb7 24.Kh2 Qc5 25.Rf2 Rf7 26.Raf1 Qa3 27.Qd1 Bd7 28.Ng1 Ree7 29.Kg2 Re8 30.fxg6 hxg6 31.Bxd7 Rxd7 32.h5 gxh5 33.Qxh5 Rf7 34.Qd1 Re6 35.Nf3 Kf8 36.Ng5 Ree7 37.Nxf7 Rxf7 38.Rh1 Kg8 39.Rh3 Kf8 40.g4 Kg8 41.g5 fxg5 42.Rxf7 Kxf7 43.Qh5+ Ke6 44.Qe8+ 1-0
2025.05.13 Titled Tue 13th May Late
89054 GM Obregon Rivero, J (2476) FM Boci, Mateu (2268) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O b5 8.Bb3 Bc5 9.Bg5 f6 10.Bh4 Nge7 11.Rc1 d6 12.Ne2 O-O 13.Ned4 Nxd4 14.Nxd4 Ng6 15.Nxe6 Bxe6 16.Bxe6+ Kh8 17.Bg3 Qe7 18.Bf5 Rfe8 19.a3 a5 20.Qd3 Ne5 21.Qxb5 Reb8 22.Qe2 Rb3 23.Bxe5 fxe5 24.Qh5 g6 25.Bxg6 Rxb2 26.Rc3 Rf8 27.Bf5 Qf7 28.Qh6 Rfb8 29.Bxh7 Qxh7 30.Qf6+ Qg7 31.Rh3+ Kg8 32.Rg3 Qxg3 33.hxg3 Rf8 34.Qg6+ Kh8 35.Kh2 Bxf2 36.Qxd6 Rf7 37.Qxe5+ Kg8 38.Qg5+ Kf8 39.Qd8+ Kg7 40.Kh3 a4 41.Kg4 Rb5 42.Rxf2 Rxf2 43.Qd7+ Kf6 44.Qxb5 Ra2 45.Qc6+ Ke7 46.Qc5+ Kd8 47.Qd5+ Ke7 48.Qxa2 Kd7 49.Qd5+ Kc7 50.Qc4+ Kb6 51.Qxa4 Kc5 52.Qb4+ Kc6 53.Kf5 Kd7 54.e5 Ke8 55.e6 Kd8 56.Qd6+ Kc8 57.Qd7+ Kb8 58.e7 Ka8 59.e8=Q# 1-0
2025.05.13 Titled Tue 13th May Late
89311 GM Obregon Rivero, J (2476) IM Gelman, A (2403) 0-1
1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 6.Be2 O-O 7.O-O Re8 8.Re1 Bf8 9.Bf1 c6 10.Bf4 Nbd7 11.Qd2 Ne5 12.Rad1 Qb6 13.b3 Bg4 14.Be2 Bd7 15.Bg3 Rad8 16.Kh1 h6 17.f3 Be7 18.Bf2 Qc7 19.Bg1 b5 20.Bf1 a5 21.a4 b4 22.Nce2 d5 23.exd5 Nxd5 24.Qc1 Ng6 25.Ng3 Nc3 26.Rd3 Bg5 27.Qa1 Nf4 28.Rxc3 bxc3 29.Qxc3 Rxe1 30.Qxe1 Nd5 31.Ne4 Bf4 32.c4 Nb4 33.Qh4 c5 34.Ne2 Be5 35.f4 Bd4 36.Nxd4 cxd4 37.Bxd4 Bf5 38.Nf6+ gxf6 39.Qxf6 Rxd4 40.Qxd4 Qe7 41.Qf2 Nd3 42.Bxd3 Bxd3 43.h3 Kh7 44.Kh2 Be4 45.Qe3 f5 46.g4 Qd7 47.gxf5 Bxf5 48.Qc3 Qd6 49.Kg3 Qc5 50.Kf3 Bxh3 51.Qf6 Qc7 52.f5 Qg7 53.Qe5 Qxe5 54.f6 Qf5+ 55.Kg3 Qg4+ 56.Kf2 Qg2+ 57.Ke3 Qf1 58.c5 Qxf6 59.Kd3 Qc6 60.Kc4 Bg2 61.b4 Bd5+ 62.Kd4 Qxa4 63.Kxd5 axb4 64.c6 Qxc6+ 65.Kxc6 b3 66.Kc5 b2 67.Kc4 b1=Q 68.Kc3 Qf5 69.Kd2 h5 70.Ke3 h4 0-1
2025.05.06 Titled Tue 6th May Early
93990 GM Obregon Rivero, J (2476) Bryant, T (2066) 1-0
1.b3 e5 2.g3 Nc6 3.Bg2 d5 4.d3 Nf6 5.h3 Be6 6.e3 Bd6 7.Ne2 h5 8.Bb2 Qd7 9.a3 O-O-O 10.Nd2 h4 11.g4 Nxg4 12.hxg4 Bxg4 13.Bxd5 h3 14.c4 Ne7 15.Bf3 Be6 16.Qc2 Ng6 17.c5 Be7 18.c6 Qxd3 19.cxb7+ Kb8 20.Qxd3 Rxd3 21.Be4 Rd7 22.Bxg6 fxg6 23.Bxe5 Bf6 24.Bxf6 gxf6 25.Nf4 Bf5 26.e4 g5 27.exf5 gxf4 28.O-O-O h2 29.Nf3 Rdh7 30.Rd4 Kxb7 31.Rxf4 Rh3 32.Kd2 Rg8 33.Rxh2 Rd8+ 34.Ke3 Rxh2 35.Nxh2 Rd5 36.Nf3 Kc6 37.Ra4 a5 38.Re4 Rb5 39.Nd4+ 1-0
2025.05.06 Titled Tue 6th May Early
93751 WCM Ejsymont, Blanka (1907) GM Obregon Rivero, J (2476) 0-1
1.e4 d6 2.d4 c6 3.Nc3 Qc7 4.Be3 e5 5.Qd2 Nf6 6.O-O-O Be7 7.f3 b5 8.g4 Nbd7 9.h4 Nb6 10.h5 Nfd7 11.g5 Nc4 12.Bxc4 bxc4 13.dxe5 dxe5 14.Nge2 Rb8 15.Kb1 Qb7 16.b3 g6 17.hxg6 fxg6 18.f4 cxb3 19.cxb3 Qb4 20.f5 gxf5 21.exf5 Nc5 22.Qb2 Bxf5+ 23.Ka1 O-O 24.Ng3 Bg6 25.Nh5 Qa5 26.Bxc5 Qxc5 27.Rd7 Rf2 28.Rd2 Rxd2 29.Qxd2 Qd4 30.Qb2 Bxg5 31.Rg1 Bd2 32.Nf6+ Kf7 33.Rf1 Kg7 34.Nce4 Be3 35.Qxd4 Bxd4+ 36.Kb1 Rf8 37.Re1 Rxf6 0-1
2025.05.06 Titled Tue 6th May Early
94185 GM Obregon Rivero, J (2476) FM Gutierrez Olivares, D (2354) 0-1
1.b3 Nf6 2.h3 d6 3.g3 Nbd7 4.e3 e5 5.d3 Be7 6.Ne2 O-O 7.Bb2 a5 8.a3 a4 9.b4 c5 10.b5 Qa5+ 11.Nbc3 d5 12.d4 Ne4 13.dxe5 Nxe5 14.Qxd5 Nf3+ 15.Kd1 Rd8 16.Qxd8+ Qxd8+ 17.Kc1 Qd2+ 18.Kb1 Qe1+ 19.Bc1 Nxc3+ 20.Nxc3 Qxc3 21.Bd3 Bf6 22.Ra2 Be6 0-1
2025.04.19 LXX Mexican Open 2025
113946 GM Obregon Rivero, J (2485) CM Duarte Barahona (2256) 1-0
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Be3 e5 7.d5 c6 8.h3 Na6 9.Nf3 Nc5 10.Nd2 a5 11.O-O Nfd7 12.Nb3 Qe7 13.Nxc5 Nxc5 14.Qd2 cxd5 15.Nxd5 Qd8 16.Nc3 Ne6 17.Rad1 Qh4 18.Qxd6 Ra6 19.Qa3 f5 20.f3 f4 21.Bf2 Qg5 22.h4 Qh5 23.c5 Nd4 24.Rxd4 exd4 25.Bxa6 dxc3 26.Bc4+ Kh8 27.bxc3 g5 28.hxg5 Qxg5 29.Bd4 Bh3 30.Rf2 Rd8 31.Bd5 Re8 32.Qxa5 Qg3 33.Qb5 Re7 34.Qb6 Rd7 35.c6 bxc6 36.Qb8+ 1-0
2025.04.18 LXX Mexican Open 2025
113921 IM Figueredo Losada, L (2302) GM Obregon Rivero, J (2485) 1/2-1/2
1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.d3 Nf6 6.d4 Be7 7.Bd3 Bg4 8.h3 Bh5 9.O-O O-O 10.Re1 Re8 11.c3 Bf8 12.Rxe8 Qxe8 13.Nbd2 Nbd7 14.Qe2 Bg6 15.Qxe8 Rxe8 16.Bxg6 hxg6 17.Kf1 d5 18.Nb3 Bd6 19.Bd2 b6 20.Re1 Rxe1+ 21.Kxe1 c6 22.Ke2 Ne8 23.Nc1 f6 24.Nd3 Kf7 25.Ke1 Kf8 1/2-1/2
2025.04.18 LXX Mexican Open 2025
113899 GM Obregon Rivero, J (2485) CM Lopez Raygoza, Luis Albert (2243) 1/2-1/2
1.c4 e6 2.Nf3 d5 3.e3 Nf6 4.Nc3 a6 5.b3 Bd6 6.Bb2 O-O 7.d4 b6 8.Bd3 Bb7 9.Qe2 Ne4 10.Bxe4 dxe4 11.Nd2 f5 12.O-O-O Nd7 13.f3 exf3 14.gxf3 e5 15.Rhg1 exd4 16.exd4 Qe7 17.Qg2 Rae8 18.Kb1 Rf6 19.Qh3 Qf7 20.d5 Bc8 21.Rg2 Rg6 22.Ne2 Nf8 23.f4 Rxg2 24.Qxg2 Ng6 25.Rf1 Qe7 26.Rf2 Qe3 27.Bd4 Qd3+ 1/2-1/2
2025.04.17 LXX Mexican Open 2025
113851 GM Obregon Rivero, J (2485) FM Garcia Guerrero, I (2285) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O d4 12.Ne2 Bg4 13.b4 Qb6 14.Bb2 Rad8 15.Qd2 Bxe2 16.Bxe2 Rfe8 17.Rfe1 Ne4 18.Qf4 Nc3 19.Bc4 Rf8 20.h4 Na4 21.Bc1 Rd7 22.Qg4 Rd6 23.Bf4 Rg6 24.Qd7 Qd8 25.Qxb7 Qxh4 26.Qxf7+ Rxf7 27.Re8# 1-0
2025.04.17 LXX Mexican Open 2025
113873 FM Fernandez Hernandez, A (2305) GM Obregon Rivero, J (2485) 1/2-1/2
1.d4 d6 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 c5 7.Nc3 cxd4 8.Nxd4 Qb6 9.Nc2 Nc6 10.b3 Be6 11.e4 a6 12.Nd5 Qd8 13.Bb2 Nxd5 14.Bxg7 Ne3 15.Nxe3 Kxg7 16.Qd2 Qa5 17.Qxa5 Nxa5 18.Nd5 Nc6 19.f4 a5 20.Rad1 Bxd5 21.exd5 Nb4 22.Rd2 Rfc8 23.Re1 Kf8 24.Bf1 Na6 25.Rb1 Rab8 26.Kf2 Nc7 27.Rc1 Rd8 28.c5 Ne8 29.c6 bxc6 30.Rxc6 Nf6 31.Ke3 Nd7 32.Ra6 Ra8 33.Rxa8 Rxa8 34.Bb5 Nc5 35.Bc6 Rb8 36.Rc2 Rb4 37.Rc4 Rxc4 38.bxc4 h6 39.Bb5 Kg7 40.Be8 Kf6 41.Kd4 Kg7 42.Ke3 Kf8 43.Bb5 f5 44.Bc6 Kf7 45.Bb5 Kf6 46.Be8 g5 47.Bh5 g4 48.Be8 Kg7 49.a3 Kf6 50.Bh5 Kg7 51.Be8 Kh7 52.Bh5 Kg7 53.Be8 Kf6 54.Bh5 Ne4 55.Be8 Nc3 56.Kd3 Ne4 57.Ke3 Nc5 1/2-1/2
2025.04.16 LXX Mexican Open 2025
113802 GM Obregon Rivero, J (2485) CM Avila Rodriguez, Joshua Ad (2257) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.Ba4 Nf6 5.O-O g6 6.Re1 Bg7 7.c3 O-O 8.d4 Nb6 9.Bc2 Bg4 10.Nbd2 e5 11.dxe5 dxe5 12.h3 Bxf3 13.Qxf3 Bh6 14.Rd1 Qe7 15.b3 Rfd8 16.Qe2 Qe6 17.Ba3 Rac8 18.Nf1 Nbd7 19.Ne3 Bxe3 20.Qxe3 b6 21.Qe2 Kg7 22.Bc1 h6 23.Bd3 Nf8 24.Be3 g5 25.f3 Nh5 26.Bc4 Qf6 27.a4 Ng6 28.a5 Nhf4 29.Qf1 Rxd1 30.Rxd1 Rd8 31.Kh2 Qe7 32.g3 Ne6 33.Rd5 Nc7 34.Rxd8 Qxd8 35.b4 cxb4 36.cxb4 Qd6 37.b5 Ne6 38.Bxe6 Qxe6 39.axb6 axb6 40.Qf2 Qc4 41.Qb2 Qc7 42.Kg2 Ne7 43.h4 f6 44.h5 Nc8 45.Qa2 Nd6 46.Qd5 Qc2+ 47.Kh3 Qc8+ 48.Kh2 Qc2+ 49.Kh3 Qc8+ 50.g4 Qc7 51.Qc6 Qxc6 52.bxc6 Nc8 53.Bd2 Kf7 54.Bb4 Ke6 55.Kg2 Na7 56.c7 Nc8 57.Kf1 Kd7 58.Bf8 Kxc7 59.Bxh6 Kd7 60.Bf8 Ke8 61.Ba3 Kf7 62.h6 Kg6 63.Bf8 Na7 64.Be7 Nc6 65.Bf8 Nd4 66.Kf2 b5 67.Be7 Nc6 68.h7 Kxh7 69.Bxf6 Kg6 70.Bh8 b4 71.Ke3 Kf7 72.Kd3 Ke6 73.Bg7 Nd4 74.Bf8 b3 75.Ba3 Nxf3 76.Bc1 Kf6 77.Kc3 Nh2 78.Kxb3 Nxg4 79.Kc4 Nf2 80.Kd5 g4 81.Be3 g3 82.Bb6 Ng4 83.Bd8+ Kg6 84.Ke6 g2 85.Bb6 Kg5 0-1
2025.04.16 LXX Mexican Open 2025
113832 WGM Arribas Robaina, M (2171) GM Obregon Rivero, J (2485) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.O-O d6 7.c3 Nxb3 8.axb3 Bb7 9.Re1 g6 10.d4 Bg7 11.Bg5 f6 12.Bh4 Nh6 13.Nbd2 O-O 14.dxe5 dxe5 15.b4 Nf7 16.Qc2 Qe7 17.Nb3 Nd8 18.Nfd2 Ne6 19.f3 Bh6 20.Bf2 Rad8 21.Rad1 Rfe8 22.Na5 Ba8 23.Ndb3 Rxd1 24.Rxd1 Rd8 25.Nc5 Rd6 26.Nxe6 Qxe6 27.Bc5 Rd7 28.Rd3 Kf7 29.Kf2 f5 30.Be3 Bf8 31.exf5 gxf5 32.Rxd7+ Qxd7 33.Nb3 Kf6 34.Nc5 Qc6 35.Qd1 Bd6 36.Qb3 Bxc5 37.Bxc5 Qd7 38.Qg8 Qd2+ 39.Kg3 Qf4+ 40.Kf2 Qd2+ 41.Kg3 Qf4+ 42.Kf2 1/2-1/2
2025.04.15 LXX Mexican Open 2025
113779 IM Gongora Montes, B (2139) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 d5 5.e3 O-O 6.Bd3 c5 7.c3 b6 8.O-O Nc6 9.Re1 cxd4 10.exd4 Qc7 11.Nf1 h6 12.Bh4 Nh5 13.Ne3 Rd8 14.Bb5 Bf6 15.Bxf6 exf6 16.Bxc6 Qxc6 17.Nh4 Ng7 18.Ng4 Bxg4 19.Qxg4 Re8 20.Nf3 Re4 21.Qh3 h5 22.Nd2 Rxe1+ 23.Rxe1 Qa4 24.Qd3 Qxa2 25.Qb5 Rd8 26.Re7 Nf5 27.Rc7 Nd6 28.Qb4 Qa1+ 29.Nf1 Qe1 30.f3 Nf5 31.Qb5 h4 32.Rxa7 Ng3 33.Re7 Qxe7 34.hxg3 hxg3 35.Nxg3 Qe1+ 36.Nf1 Re8 37.Qxb6 Re2 38.Qb8+ Kg7 39.Qg3 Qc1 40.f4 Rxb2 41.Qf3 Qe1 42.Qe3 Re2 43.Qf3 Rc2 0-1
2025.04.14 LXX Mexican Open 2025
113756 GM Obregon Rivero, J (2485) Navarro, Roman N (1968) 1-0
1.c4 e6 2.Nf3 Nf6 3.g3 d5 4.Bg2 Be7 5.O-O O-O 6.d4 b6 7.cxd5 exd5 8.Nc3 Bb7 9.Bf4 c5 10.Rc1 Nc6 11.dxc5 bxc5 12.Ne5 Nxe5 13.Bxe5 Rc8 14.Qb3 Bc6 15.Bxf6 Bxf6 16.Nxd5 Bxd5 17.Bxd5 Rb8 18.Qf3 Rxb2 19.Rxc5 Qe7 20.Ra5 Rxe2 21.Rxa7 Qxa7 22.Qxe2 Rd8 23.Qf3 Qa5 24.Bb3 Qc3 25.Qb7 Rf8 26.Rd1 Bd4 27.Qe4 Bb6 28.Rd7 Qc8 29.Rb7 Bc7 30.Qc6 Be5 31.Rxf7 Qxc6 32.Rf6+ Kh8 33.Rxf8# 1-0
2025.04.08 Titled Tue 8th Apr Early
124174 GM Obregon Rivero, J (2485) FM Kurchenko, Egor (2130) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.c3 a5 7.Re1 O-O 8.h3 h6 9.Nbd2 a4 10.Bb5 Bd7 11.Bxa4 Rxa4 12.Qxa4 Nb4 13.Qd1 Nxd3 14.Rf1 Nh5 15.Nb3 Ndf4 16.Nxc5 dxc5 17.Nxe5 Qg5 18.Ng4 Rd8 19.Qf3 f5 20.exf5 Bc6 21.Qe3 Bxg2 22.Qe6+ Kh8 23.Qg6 Qh4 0-1
2025.04.08 Titled Tue 8th Apr Early
123929 WGM Paramzina, A (2133) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.h4 h6 11.Be3 h5 12.Kb1 Ne5 13.f4 Neg4 14.Bg1 b5 15.a3 Qc7 16.Rh3 Rb8 17.Re1 a5 18.Ndxb5 Qb7 19.a4 O-O 20.e5 dxe5 21.fxe5 Nd5 22.Nxd5 exd5 23.Rb3 Bb4 24.c3 Be7 25.Rd1 Bxh4 26.Bd4 Rfe8 27.Qf4 Qc6 28.Bd3 Qh6 29.Qf3 Nxe5 30.Bxe5 Rxe5 31.Nd6 Qxd6 32.Rxb8+ Qxb8 33.Rh1 Qd8 0-1
2025.04.08 Titled Tue 8th Apr Early
125225 IM Tologontegin, S (2358) GM Obregon Rivero, J (2485) 1-0
1.a3 Nf6 2.Nf3 g6 3.b4 Bg7 4.Bb2 O-O 5.d4 a5 6.b5 a4 7.c4 c6 8.e3 cxb5 9.cxb5 d5 10.Nc3 Qa5 11.Bd3 Bg4 12.O-O Nbd7 13.h3 Bxf3 14.Qxf3 Nb6 15.Rfc1 Rac8 16.Rc2 e6 17.Rac1 Nc4 18.Bxc4 Rxc4 19.e4 Nxe4 20.Nxd5 Rxc2 21.Ne7+ Kh8 22.Rxc2 Qe1+ 23.Kh2 Nd2 24.Qc3 Bh6 25.d5+ f6 26.Qxf6+ Rxf6 27.Bxf6+ 1-0
2025.04.08 Titled Tue 8th Apr Early
123706 GM Obregon Rivero, J (2485) Asish Panda (1911) 0-1
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 a6 8.Qd2 Be7 9.Bd3 b5 10.dxc5 Bxc5 11.Bxc5 Nxc5 12.O-O-O Qa5 13.Kb1 b4 14.Ne2 Bd7 15.h4 h5 16.Rh3 g6 17.Nfd4 Nxd4 18.Nxd4 Bb5 19.Nb3 Nxb3 20.axb3 Bxd3 21.Rxd3 Qb6 22.f5 gxf5 23.Qg5 Qc5 24.c3 a5 25.Qf6 Rg8 26.g3 a4 27.bxa4 Rxa4 28.cxb4 Qa7 29.Rc1 Ra1+ 30.Kc2 Qa4+ 31.Kd2 Qxb4+ 32.Rcc3 d4 33.Ke2 Qxb2+ 34.Kf3 Rf1# 0-1
2025.04.08 Titled Tue 8th Apr Early
124490 FM Kshatriya, Nitin Vekhande (2133) GM Obregon Rivero, J (2485) 1-0
1.e4 d6 2.d4 c6 3.Nf3 Qc7 4.Nc3 Nd7 5.a4 h6 6.h3 e5 7.Be3 Ngf6 8.Bc4 Be7 9.O-O Nf8 10.Bb3 g5 11.Qe2 g4 12.hxg4 Bxg4 13.dxe5 dxe5 14.Qc4 Ne6 15.Nh2 Rg8 16.Ne2 h5 17.Ng3 h4 18.Nxg4 Rxg4 19.Nf5 O-O-O 20.f3 Rgg8 21.Bxa7 Nh5 22.Qxe6+ fxe6 23.Bxe6+ Rd7 24.Rad1 Nf6 25.Nxe7+ Kd8 26.Nxg8 Nd5 27.Bxd7 Kxd7 28.exd5 b6 29.dxc6+ Kxc6 30.Rfe1 Qxa7 31.Nf6 Qxa4 32.Rxe5 Qxc2 33.Re6+ Kb7 34.Rde1 h3 35.gxh3 Qxb2 36.Ng4 Qc3 37.R6e3 Qc5 38.Kg2 b5 39.h4 Kb6 40.Re6+ Kb7 41.R6e5 Qc2+ 42.R1e2 Qc4 43.h5 b4 44.h6 Qd3 45.h7 1-0
2025.04.08 Titled Tue 8th Apr Early
125029 GM Obregon Rivero, J (2485) FM Kandil, Ahmed (2289) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 g6 4.d4 dxe4 5.Nxe4 Bg7 6.h3 Nf6 7.Nxf6+ exf6 8.Bc4 O-O 9.O-O a5 10.a4 Na6 11.Bf4 Nc7 12.Bxc7 Qxc7 13.Re1 Rd8 14.Qe2 Bf8 15.Rad1 Bf5 16.c3 Qd7 17.Nh2 Re8 18.Qf3 Bc2 19.Rc1 Bxa4 20.Ng4 Bg7 21.Nxf6+ Bxf6 22.Qxf6 b5 23.Ba2 b4 24.cxb4 axb4 25.Bc4 Rxe1+ 26.Rxe1 Re8 27.Qxf7+ Qxf7 28.Rxe8+ Kg7 29.Bxf7 Kxf7 30.Rb8 Bb5 31.d5 Ke7 32.dxc6 Bxc6 33.Rxb4 Kd6 34.Rb3 Ke5 35.Rc3 Bd5 36.h4 h5 37.g3 Be4 38.Rc1 Bf5 39.b4 Kd4 40.b5 Be4 41.b6 Kd3 42.Rc7 Ke2 43.b7 Kf3 44.b8=Q Kg4 45.Rc4 Kh3 46.Rxe4 g5 47.hxg5 h4 48.Rxh4# 1-0
2025.04.08 Titled Tue 8th Apr Early
123572 CM Akkara, Omer (2132) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Bd7 5.e5 dxe5 6.Nxe5 Nc6 7.Nxd7 Qxd7 8.O-O e6 9.d3 Be7 10.h3 O-O 11.Bf4 Rad8 12.Nd2 h6 13.Qc2 Bd6 14.Bxd6 Qxd6 15.Ne4 Qe7 16.Bf3 Nd5 17.Ng3 Ne5 18.Bxd5 Rxd5 19.Rad1 Rfd8 20.d4 cxd4 21.cxd4 Rxd4 22.Rxd4 Rxd4 23.Re1 Rd5 24.Qc3 Nc6 25.Re4 Qc5 26.Rc4 Rd1+ 27.Nf1 Qd5 28.Rg4 Nd4 29.Kh2 f5 30.Ne3 Qd6+ 31.Rg3 f4 32.Nxd1 fxg3+ 33.Qxg3 Qxg3+ 34.Kxg3 Kf7 35.Kf4 Ke7 36.Ke3 Nf5+ 37.Ke4 Nd6+ 38.Kd3 e5 39.Ne3 Ke6 40.f3 b6 41.b3 h5 42.a4 h4 43.Ng4 Kf5 44.Nf2 Kf4 45.Ke2 e4 46.Ng4 exf3+ 47.gxf3 Nf5 48.Nf2 Nd4+ 49.Kf1 Nxb3 50.Nd3+ Kxf3 51.Ne5+ Kg3 52.Nc6 Nc5 53.Nxa7 Nxa4 54.Nc6 Kxh3 55.Ne5 g5 56.Kg1 g4 57.Kh1 g3 58.Kg1 Nc5 59.Nc4 b5 60.Nd2 b4 61.Nf3 b3 62.Nd2 b2 63.Kh1 Kg4 64.Nb1 Ne4 65.Kg1 Kf3 66.Kh1 Ke3 67.Kg2 Kd3 68.Kh3 Kc2 69.Na3+ Kc1 70.Kxh4 g2 71.Kg4 g1=Q+ 72.Kf4 Qf2+ 73.Kxe4 b1=Q+ 74.Nxb1 Kxb1 75.Kd3 Qc2+ 76.Kd4 Kb2 77.Ke5 Qc4 78.Kd6 Kc3 79.Ke5 Qd4+ 80.Ke6 Qc5 81.Kf6 Kd4 82.Ke6 Qe5+ 83.Kd7 Qf6 84.Kc8 Qe7 85.Kb8 Kc5 86.Ka8 Kb6 87.Kb8 Qd8# 0-1
2025.04.08 Titled Tue 8th Apr Early
124596 GM Obregon Rivero, J (2485) Shevchenko, Yaroslav (2137) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6 7.O-O Nf6 8.Qe2 Be7 9.Rd1 e5 10.Be3 O-O 11.Rac1 Be6 12.b4 Bxc4 13.Qxc4 Qc8 14.Qb3 Qe6 15.Qa4 a6 16.Bg5 b5 17.Qa3 a5 18.Nxb5 axb4 19.Qd3 Rac8 20.Bxf6 Bxf6 21.Nxd6 Rfd8 22.Qa6 Nb8 23.Qxc8 1-0
2025.04.08 Titled Tue 8th Apr Early
124880 FM Sharipov, Davron (2246) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 c5 6.Nf3 cxd4 7.Nxd4 Nc6 8.O-O Qb6 9.Nb3 d6 10.Be3 Qa6 11.Nd5 Nxd5 12.cxd5 Ne5 13.Bd4 Bd7 14.f4 Nc4 15.Bxg7 Kxg7 16.Qd4+ Kg8 17.Kh1 Rac8 18.Rfc1 Nb6 19.e4 Rxc1+ 20.Nxc1 Rc8 21.Nb3 Qa4 22.Qf2 Qb4 23.Nd4 Nc4 24.b3 Qc3 25.Re1 Nb2 26.Ne2 Qd2 27.Rf1 Rc2 28.Kg1 Qxe2 29.Qxe2 Rxe2 30.Rf2 Rxf2 31.Kxf2 Nd3+ 32.Ke3 Nc1 33.Kd4 Nxa2 34.b4 Nxb4 35.Bf1 a5 36.e5 f6 37.e6 Ba4 38.Bc4 Kg7 39.g4 g5 40.Ke4 gxf4 41.Kxf4 b5 42.Be2 Nxd5+ 43.Kg3 b4 44.h4 b3 45.g5 fxg5 46.hxg5 b2 47.Bd3 Nc3 48.Kh4 b1=Q 49.Bxb1 Nxb1 50.Kh5 Bd1+ 51.Kh4 a4 52.Kg3 a3 53.g6 hxg6 54.Kf4 Kf6 55.Kg3 Kxe6 56.Kh4 Kf5 57.Kh3 a2 58.Kh2 a1=N 59.Kg3 e5 60.Kh4 Bf3 61.Kg3 Bb7 62.Kf2 Bc8 63.Ke3 Nb3 64.Ke2 Na3 65.Kd1 Nc5 66.Kd2 Nb5 67.Ke3 Nd7 68.Kf2 Nb8 69.Kg3 Nc7 70.Kh4 Ne6 0-1
2025.04.08 Titled Tue 8th Apr Early
125673 FM Kavyev, Ruslan (2279) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.Bf4 g6 3.Nc3 d5 4.e3 a6 5.h4 c5 6.h5 cxd4 7.exd4 Nxh5 8.Rxh5 gxh5 9.Qxh5 Be6 10.O-O-O Qd7 11.Nf3 Nc6 12.Be2 h6 13.Na4 Bg4 14.Qh4 Qf5 15.Be3 Nb4 16.Rd2 Rc8 17.Nc3 e6 18.a3 Nc6 19.Qg3 Bxf3 20.Bxf3 Na5 21.Re2 Be7 22.Qg7 Bf6 23.Qg3 Kf8 24.Bg4 Qg6 25.Qd6+ Kg7 26.Bf3 Nc4 27.Qf4 Nxa3 28.g4 b5 29.Rd2 Nxc2 30.Rxc2 b4 31.Bd2 bxc3 32.bxc3 Bg5 33.Qe5+ Bf6 34.Qd6 Qd3 35.Bd1 Rhd8 36.Qb6 Qb5 37.Qa5 Qxa5 38.c4 Qc7 39.c5 Qh2 40.f4 Qh1 41.f5 Bxd4 42.g5 hxg5 43.Bxg5 Rxc5 44.f6+ Kg6 45.Bd2 Rxc2+ 46.Kxc2 Be5 47.Kd3 Kxf6 48.Ke2 Qe4+ 49.Be3 Qf5 50.Ke1 Qe4 51.Be2 Qxe3 52.Kf1 d4 53.Kg2 Bg3 54.Kh1 Rh8+ 55.Kg2 Qf2# 0-1
2025.04.08 Titled Tue 8th Apr Early
125433 GM Obregon Rivero, J (2485) CM Asensio Ramos, E (2216) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Bd6 5.b3 O-O 6.Bb2 b6 7.d4 Bb7 8.Nbd2 Qe7 9.a4 Nc6 10.c3 e5 11.e3 e4 12.Ne1 Ba6 13.c4 Nb4 14.Nc2 Nd3 15.Bc3 c5 16.dxc5 Be5 17.Bxe5 Nxe5 18.Nb4 bxc5 19.Nxa6 Qd6 20.Nxc5 Qxc5 21.cxd5 Qxd5 22.Nxe4 Qe6 23.Nxf6+ Qxf6 24.Bxa8 Rxa8 25.f4 Ng6 26.Qf3 Rb8 27.e4 h5 28.e5 Qb6+ 29.Kh1 h4 30.Rae1 h3 31.f5 Nf8 32.g4 Qd4 33.Qxh3 Nd7 34.e6 Ne5 35.exf7+ Kxf7 36.g5 Rc8 37.g6+ Kg8 38.Qh7+ Kf8 39.Qh8+ Ke7 40.Qxg7+ Kd6 41.Rd1 Nd3 42.Qxd4+ 1-0
2025.04.01 Titled Tue 1st Apr Early
130822 GM Obregon Rivero, J (2485) CM Tang, Terrence (2068) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d5 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.c4 Nxd4 10.Bxd4 Be6 11.c5 Qc7 12.Nc3 Rfd8 13.Rc1 Ne4 14.Bxg7 Kxg7 15.Nxe4 dxe4 16.Qc2 Qc6 17.b4 a6 18.Rfd1 Rd5 19.Rxd5 Qxd5 20.a4 Rd8 21.b5 axb5 22.axb5 Ra8 23.h3 f6 24.Bc4 Qxc4 25.Qxc4 Bxc4 26.Rxc4 f5 27.g4 Kf6 28.c6 bxc6 29.Rxc6+ Ke5 30.gxf5 gxf5 31.b6 Rb8 32.Rh6 e6 33.Rxh7 Rxb6 34.Kg2 Kf6 35.Rc7 Rb8 36.Rc1 Rg8+ 37.Kh2 f4 38.Rg1 Rc8 39.exf4 Kf5 40.Rg4 Rc2 41.Kg3 Rc3+ 42.Kg2 Rc2 43.Rg3 Kxf4 44.h4 Rc5 45.Rg6 Rh5 46.Kh3 e3 47.fxe3+ Kf5 48.Rg8 e5 49.Kg3 Rh7 50.Rg4 Rh5 51.Ra4 Rh7 52.e4+ Kf6 53.Ra6+ Kf7 54.Ra7+ Kg6 55.Rxh7 Kxh7 56.Kg4 Kg6 57.h5+ Kf6 58.Kh4 Kg7 59.Kg5 Kh7 60.Kf5 Kh6 61.Kxe5 Kxh5 62.Kf6 1-0
2025.04.01 Titled Tue 1st Apr Early
131652 GM Obregon Rivero, J (2485) IM Purtseladze, M (2261) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Na6 7.O-O Nc7 8.Re1+ Be6 9.c3 Bd6 10.Nd4 Qd7 11.Nxe6 fxe6 12.Qb3 O-O-O 13.Bxe6 Nxe6 14.Qxe6 Qxe6 15.Rxe6 Be5 16.Re7 Rd3 17.Rxg7 Bf4 18.g3 Bh6 19.Rf7 Re8 20.Kf1 Bxd2 21.Bxd2 Rxd2 22.Re1 Rxe1+ 23.Kxe1 Rxb2 24.Rxh7 Rxa2 25.h4 a5 26.h5 a4 27.h6 Ra1+ 28.Kd2 Rh1 29.Kc2 Rh2 30.Kb1 a3 31.f4 f5 32.c4 b5 33.cxb5 cxb5 34.Ra7 Rxh6 35.Rxa3 Kc7 36.Re3 Kc6 37.Kc2 Rh3 38.Kc3 Rh1 39.Re6+ Kc7 40.Re5 Rg1 41.Re3 Rg2 42.Kb4 Kb6 43.Re6+ Kc7 44.Rg6 Rb2+ 45.Kc5 b4 46.Rg7+ Kd8 47.Kd6 Ke8 48.Ke6 Kf8 49.Rb7 Rg2 50.Rxb4 Rxg3 51.Kf6 Ra3 52.Rb8# 1-0
2025.04.01 Titled Tue 1st Apr Early
130124 Montano Vicente, Guadalupe (1970) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.h3 d6 6.Be3 a5 7.Qd2 Nc6 8.d5 Nb4 9.Nf3 e6 10.Be2 exd5 11.exd5 Re8 12.O-O Bf5 13.Rac1 Ne4 14.Nxe4 Bxe4 15.Rfe1 Nxa2 16.Ra1 Bxf3 17.Bxf3 Nb4 18.Rad1 b6 19.Bh6 Bxh6 20.Qxh6 Qf6 21.Rxe8+ Rxe8 22.Rb1 Nd3 23.b3 Nf4 0-1
2025.04.01 Titled Tue 1st Apr Early
130390 GM Obregon Rivero, J (2485) WCM Duarte Cramer, Lily Jeanette (1836) 1-0
1.Nf3 d5 2.b3 Bf5 3.Bb2 e6 4.e3 Bd6 5.Bxg7 Nf6 6.Bxh8 Nc6 7.a3 Qe7 8.Bb5 O-O-O 9.Bxf6 Qxf6 10.d4 Qg6 11.Nh4 Qg5 12.Nxf5 exf5 13.g3 h5 14.Bxc6 bxc6 15.Qe2 Re8 16.Nd2 f4 17.gxf4 Bxf4 18.O-O-O Bd6 19.Qa6+ Kb8 20.Qxc6 Bxa3+ 21.Kb1 Re6 22.Qa4 Be7 23.Nf3 Qf6 24.Ne5 Qxf2 25.Nc6+ Kb7 26.Nxe7 Rxe7 27.Qb4+ Ka8 28.Qxe7 h4 29.Qxc7 h3 30.Rhg1 Qe2 31.Qc8# 1-0
2025.04.01 Titled Tue 1st Apr Early
131170 GM Obregon Rivero, J (2485) GM Novik, Ma (2398) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 Nf6 7.e5 dxe5 8.Qxd8+ Nxd8 9.Nb5 Rb8 10.Nxe5 e6 11.Bf4 Bb4+ 12.Kf1 a6 13.Nd3 axb5 14.Bxb5+ Bd7 15.Bxd7+ Kxd7 16.Bxb8 Nc6 17.Ne5+ Nxe5 18.Bxe5 Rc8 19.a3 Be7 20.Rd1+ Ke8 21.Ke2 Nd5 22.Rc1 Rd8 23.Bxg7 Bg5 24.Rcd1 Rc8 25.h4 Bf4 26.g3 Bd6 27.Rc1 Rd8 28.Rhd1 f6 29.Rxd5 exd5 30.Bxf6 Rd7 31.Rc8+ Kf7 32.Bd4 Be7 33.Rh8 Kg6 34.Rg8+ Kf5 35.Rg7 Ke4 36.Bf6 Bxf6 37.Rxd7 1-0
2025.04.01 Titled Tue 1st Apr Early
131480 IM Ambartsumova, K (2405) GM Obregon Rivero, J (2485) 1-0
1.Nf3 Nf6 2.c4 g6 3.d4 Bg7 4.g3 c5 5.Bg2 cxd4 6.Nxd4 O-O 7.Nc3 Nc6 8.Nc2 d6 9.O-O Qb6 10.b3 Be6 11.Bb2 Bxc4 12.Rb1 Be6 13.Qd2 Rfd8 14.e4 Qa5 15.Ne3 Rac8 16.Rfd1 Ng4 17.Nxg4 Bxg4 18.f3 Be6 19.Rbc1 Nb4 20.a3 Nc6 21.b4 Qb6+ 22.Kh1 Ne5 23.Qe2 Nc4 24.Nd5 Bxd5 25.Bxg7 Kxg7 26.exd5 Qe3 27.Qd3 Qxd3 28.Rxd3 Nb6 29.Re1 Rc7 30.f4 Rdc8 31.Bh3 f5 32.Bg2 Kf7 33.Rde3 Nc4 34.R3e2 Nb6 35.h3 Rd7 36.g4 Rc3 37.Re3 Rxe3 38.Rxe3 Rc7 39.Rg3 Rc1+ 40.Kh2 Rc2 41.gxf5 Nxd5 42.fxg6+ hxg6 43.Rf3 b6 44.f5 g5 45.Kg3 Nf4 46.Bf1 Kf6 47.h4 Nh5+ 48.Kg4 Ng7 49.hxg5+ Kf7 50.f6 exf6 51.Rxf6+ Ke7 52.Bd3 Rc3 53.Bg6 Ne6 54.Rf7+ Kd8 55.Kf5 Nd4+ 56.Kf6 Nc6 57.Rh7 Rf3+ 58.Ke6 Nd4+ 59.Kxd6 Rd3 60.Rh8# 1-0
2025.04.01 Titled Tue 1st Apr Early
131002 CM Smieszek, W (2147) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be3 Ng4 7.Bb5 Nxe3 8.fxe3 Bd7 9.Bxc6 bxc6 10.O-O e6 11.e5 Be7 12.Qf3 O-O 13.Nxc6 Bxc6 14.Qxc6 dxe5 15.Rfb1 Qd2 16.Qe4 Bc5 17.Re1 Qd6 18.Rad1 Qc7 19.Na4 Be7 20.c4 Rad8 21.Nc3 f5 22.Qf3 Qxc4 23.Qb7 Bc5 24.Rd7 Rxd7 25.Qxd7 h6 26.h3 f4 27.Nd1 Qxa2 28.Kh1 Qd5 29.Qxd5 exd5 30.exf4 Rxf4 31.Kh2 Bd4 32.Nc3 Bxc3 33.bxc3 e4 34.Ra1 e3 35.Kg3 Re4 36.Kf3 e2 37.Re1 Kf7 38.c4 Ke6 39.g4 g5 40.h4 Kd6 41.hxg5 hxg5 42.cxd5 Kxd5 43.Kf2 Kd4 44.Ra1 e1=Q+ 45.Rxe1 Rxe1 46.Kxe1 Ke3 0-1
2025.04.01 Titled Tue 1st Apr Early
131813 CM Manvelyan, Mikayel (2176) GM Obregon Rivero, J (2485) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.O-O Bg7 8.d4 cxd4 9.Nxd4 O-O 10.f3 Rc8 11.b3 d5 12.exd5 Nxd5 13.Nxd5 e6 14.Bh6 exd5 15.Bxg7 Kxg7 16.c5 Na6 17.Rc1 Nxc5 18.Re1 b6 19.Qd2 Re8 20.h4 Rxe1+ 21.Rxe1 h6 22.Qe3 Qd6 23.h5 a5 24.hxg6 fxg6 25.a3 Kh7 26.b4 axb4 27.axb4 Na6 28.Qd3 Nxb4 29.Qd2 Ra7 30.Re6 Qc5 31.Qe3 Nc6 32.Rxc6 Qf8 33.Qe6 Rf7 34.Qxg6+ Kh8 35.Ne6 1-0
2025.03.25 Titled Tue 25th Mar Late
138243 GM Obregon Rivero, J (2485) FM Naranjo Moreno, A (2269) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 d5 9.c4 e5 10.Nf3 e4 11.Nd4 dxc4 12.Bxc4 Ng4 13.h3 Ne5 14.Nd2 Qh4 15.Qc2 Nxc4 16.bxc4 Re8 17.Nb5 Bxh3 18.gxh3 Qxh3 19.Rfd1 Be5 20.Bxe5 Rxe5 21.Nxe4 Nc6 22.Ng3 Rh5 23.Nxh5 Ne5 24.Nd4 Qxh5 25.Qe4 Ng4 26.Nf3 Qh3 27.Rd2 Nf6 28.Qf4 Nh5 29.Qxf7+ Kh8 30.Qxh7+ Kxh7 31.Ng5+ 1-0
2025.03.25 Titled Tue 25th Mar Late
139561 FM Kovalchuk, Al RUS (2304) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.Nb3 Be7 10.Bxf6 gxf6 11.f4 Qc7 12.f5 b5 13.Kb1 Ne5 14.a3 Rc8 15.Nd4 h5 16.Be2 h4 17.g4 Qb6 18.Rhf1 b4 19.axb4 Qxb4 20.h3 Rb8 21.b3 a5 22.Na2 Qa3 23.Qc1 Qc5 24.Ka1 Bf8 25.Qb2 Bh6 26.fxe6 fxe6 27.Rxf6 Bg7 28.g5 Bxf6 29.gxf6 Kf7 30.Rf1 Rbg8 31.Nc1 Rg3 32.Bd3 Rxh3 33.Nde2 Rg8 34.Nf4 Rh2 35.Be2 Rg5 36.Bh5+ Rxh5 37.Nxh5 Rxc2 0-1
2025.03.25 Titled Tue 25th Mar Late
139320 GM Obregon Rivero, J (2485) GM Salinas Herrera, P (2463) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 a6 6.Bc4 Nc6 7.O-O Nf6 8.Bf4 e5 9.Bg5 Be6 10.Bxe6 fxe6 11.Qb3 Qd7 12.Bxf6 gxf6 13.Na4 Rd8 14.Rfd1 Qf7 15.Nb6 Rg8 16.g3 f5 17.exf5 Qxf5 18.Nc4 Be7 19.Qxb7 Qxf3 20.Nd2 Qd5 21.Nb3 Qb5 22.Qc7 Rd7 23.Qc8+ Rd8 24.Qxe6 Rg7 25.Rd5 Qe2 26.Rad1 Qg4 27.Qh6 Rf7 28.Qc1 Nb4 29.R5d2 Rc8 30.Qb1 Qf5 31.Qa1 Bg5 32.Re2 Rc2 33.Nd4 Qg4 34.Rxc2 Nxc2 35.Nxc2 Qe2 36.f4 Qxc2 37.fxg5 Rf2 0-1
2025.03.25 Titled Tue 25th Mar Late
139092 GM Le, Quang Liem (2739) GM Obregon Rivero, J (2485) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.d4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Nxd4 10.Bxd4 a5 11.Qd3 Bd7 12.c5 dxc5 13.Bxc5 Bc6 14.Qe3 Qc8 15.Rac1 Qe6 16.f3 Nd7 17.Ba3 Rfd8 18.Rfd1 Ne5 19.Qb6 Rxd1+ 20.Rxd1 Nd7 21.Qe3 Ne5 22.Qc5 Bf6 23.Kf1 Nd7 24.Qe3 Kg7 25.h3 g5 26.Nd5 Bxd5 27.Rxd5 h6 28.Bb5 Nb6 29.Rd1 Nc4 30.Bxc4 Qxc4+ 31.Qe2 Rc8 32.Qxc4 Rxc4 33.Ke2 b5 34.b3 Rc7 35.Kd3 Be5 36.Bc1 a4 37.Bd2 e6 38.Rc1 Rd7+ 39.Ke2 Bd4 40.bxa4 bxa4 41.Rc4 a3 42.Bc1 Be5 43.Ra4 Rc7 44.Kd1 Bb2 45.Bd2 Kf6 46.Ra5 Rc4 47.Ra7 Rd4 48.Ke2 Rd8 49.Rb7 Rc8 50.Rb5 Rd8 51.Be3 Rc8 52.Bc5 Rc7 53.Kd3 Rd7+ 54.Kc2 Rc7 55.Kb3 Rd7 56.Bxa3 Bxa3 57.Kxa3 Rd2 58.Rb2 Rd1 59.Kb4 Ke5 60.a4 Ra1 61.a5 f5 62.exf5 exf5 63.Rb3 Kf4 64.Ra3 Rb1+ 65.Ka4 Rb2 66.a6 Rb8 67.a7 Ra8 68.Kb5 Kg3 69.Ra2 h5 70.Kb6 h4 71.Kb7 Rg8 72.a8=Q Rxa8 73.Kxa8 g4 74.fxg4 fxg4 75.hxg4 Kxg4 76.Kb7 Kg3 77.Kc6 1-0
2025.03.25 Titled Tue 25th Mar Late
138071 FM Aukhatov, Roman (2167) GM Obregon Rivero, J (2485) 0-1
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.d4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Nxd4 10.Bxd4 a5 11.Qd3 Bd7 12.f4 Bc6 13.Qe3 Nd7 14.e5 dxe5 15.fxe5 e6 16.Bf3 a4 17.Bxc6 bxc6 18.Rad1 Qa5 19.c5 Rab8 20.Ne4 Nxe5 21.Nf6+ Bxf6 22.Rxf6 Ng4 23.Qf4 e5 24.Qxg4 exd4 25.Qxd4 Rb4 26.Qe5 Qb5 27.Rfd6 Rc4 28.Rd8 Qxc5+ 29.Qxc5 Rxc5 30.Rxf8+ Kxf8 31.Rd4 Rc2 32.Rxa4 Rxb2 33.Rc4 Rb6 34.h4 h5 35.Kf2 Ke7 36.Ke3 Ra6 37.a4 Kd6 38.g3 c5 39.Ke4 Rb6 40.Kd3 Rb3+ 41.Rc3 Rb1 42.Rc4 Rg1 0-1
2025.03.25 Titled Tue 25th Mar Late
139140 GM Antonio, R (2363) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.h3 Bd7 5.Bd3 Nc6 6.Bc2 e5 7.d4 Be7 8.d5 Nb8 9.a4 O-O 10.O-O Ne8 11.Nfd2 Bg5 12.Na3 Qe7 13.Ndc4 Bxc1 14.Rxc1 Bc8 15.b4 Nd7 16.a5 cxb4 17.cxb4 Ndf6 18.Qe2 g6 19.Kh2 Bd7 20.Bd3 Nh5 21.g3 Neg7 22.Ne3 f5 23.exf5 gxf5 24.Rc7 e4 25.Bb5 Rad8 26.Rxb7 f4 27.Ng4 Bxb5 28.Rxe7 Bxe2 29.Nh6+ Kh8 30.Re1 fxg3+ 31.fxg3 Rf2+ 32.Kg1 Rdf8 33.Nf7+ R2xf7 34.Rxf7 Rxf7 35.Rxe2 Nxg3 36.Re3 N7f5 37.Rb3 Ne2+ 38.Kh2 Nfd4 39.Re3 Rf2+ 40.Kh1 Nf3 0-1
2025.03.25 Titled Tue 25th Mar Late
137883 GM Obregon Rivero, J (2485) FM Brancaleoni, M (2180) 1/2-1/2
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Bd6 7.Qe2+ Qe7 8.Qxe7+ Kxe7 9.O-O Be6 10.Re1 Kd7 11.Bf1 Re8 12.Nd4 Bc5 13.Nxe6 Rxe6 14.Rd1 Kc7 15.d4 Bd6 16.Bc4 Re7 17.a4 Nd7 18.a5 Nf8 19.c3 Rae8 20.Bd2 Ne6 21.g3 Ng5 22.Kg2 Ne4 23.Be1 f5 24.f3 Nf6 25.Bf2 h5 26.Re1 a6 27.Rxe7+ Rxe7 28.Re1 Kd7 29.Rxe7+ Kxe7 30.Bd3 g6 31.b4 Nd5 32.Be1 Ke6 33.Bc4 f4 34.Kf2 fxg3+ 35.hxg3 Be7 36.Bb3 Kf5 37.Bc2+ Ke6 38.Bb3 Kf5 39.Bd2 Bg5 40.f4 Be7 41.Kf3 Ke6 42.c4 Nxb4 43.c5+ Nd5 44.Ke4 f5+ 45.Kd3 h4 46.gxh4 Bxh4 47.Ke2 Bf6 48.Kd3 Bh4 49.Ke2 Bf6 50.Kd3 Bh4 1/2-1/2
2025.03.25 Titled Tue 25th Mar Late
138914 GM Obregon Rivero, J (2485) IM Ibrahimli, Murad (2421) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 Nbd7 6.Nf3 O-O 7.Be3 e5 8.d5 Ng4 9.Bg5 f6 10.Bh4 a5 11.Nd2 Nh6 12.f3 Nc5 13.Qc2 Bd7 14.b3 Nf7 15.Bf2 b6 16.Rb1 f5 17.O-O Bh6 18.a3 fxe4 19.Ndxe4 Bf5 20.b4 axb4 21.axb4 Nxe4 22.Nxe4 Ra3 23.Ra1 Qa8 24.Qb2 Rxa1 25.Rxa1 Qb7 26.Qa2 Rb8 27.Qa6 Kg7 28.Qxb7 Rxb7 29.Ra8 Bf4 30.g3 Bc1 31.Kg2 h5 32.b5 Bb2 33.Be3 Bd4 34.Bd2 Bb2 35.h4 Bd4 36.Bd3 Bb2 37.Kf1 Bd4 38.Ke2 Bb2 39.Ng5 Nxg5 40.Bxg5 Bd4 41.Be4 Kf7 42.Bd8 Bc5 43.Bg5 Bd4 44.Be3 Bc3 45.Bf2 Bb4 46.Kd3 Kg7 47.Kc2 Ba5 48.Kd1 Bb4 49.Be1 Bc5 50.Ke2 Kf7 51.Kd3 Bd4 52.f4 Bc5 53.fxe5 dxe5 54.Bc3 Bd6 55.Bd2 Bc5 56.Be3 Bd6 57.Bg5 Kg7 58.Ke3 Bc5+ 59.Kf3 Kf7 60.Be3 Bd6 61.Bg5 Bc5 62.Bd8 Bd6 63.Bg5 Bc5 1/2-1/2
2025.03.25 Titled Tue 25th Mar Late
138405 GM Obregon Rivero, J (2485) Sitbon, Itay (2195) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.e3 O-O 5.d4 d5 6.Be2 b6 7.O-O Bb7 8.c4 Nbd7 9.Nc3 dxc4 10.bxc4 c5 11.d5 Ne4 12.Qc2 Nxc3 13.Bxc3 Bxc3 14.Qxc3 f5 15.Ng5 Qb8 16.f4 Qd6 17.e4 fxe4 18.Nxe4 Qc7 19.Bg4 Nf6 20.Be6+ Kg7 21.g4 Bc8 22.g5 Bxe6 23.dxe6 Qc6 24.gxf6+ exf6 25.Rae1 Qxe6 26.f5 Qc6 27.fxg6 hxg6 28.Nxf6 1-0
2025.03.25 Titled Tue 25th Mar Late
138673 FM Degenbaev, Aziz (2289) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.f3 O-O 10.O-O Rc8 11.b3 a6 12.Na4 Qc7 13.Be3 Nbd7 14.Qd2 Rab8 15.Rac1 Nc5 16.Nc3 e6 17.Rfd1 Rd8 18.Qf2 Qa5 19.Qh4 Ne8 20.Kh1 Rdc8 21.Qf2 b5 22.cxb5 axb5 23.Qe2 b4 24.Nb1 e5 25.Nc2 Qxa2 26.Nd2 Nxb3 27.Nxb3 Qxb3 28.h3 Qc4 29.Qd2 b3 30.Nb4 Qe6 31.Rxc8 Rxc8 32.Nd5 Nc7 33.Nxc7 Rxc7 34.Qb4 Bf8 35.Bh6 Qc4 36.Qb8 Rc8 0-1
2025.03.25 Titled Tue 25th Mar Late
139486 GM Postny, E (2538) GM Obregon Rivero, J (2485) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.f3 g6 7.Be3 Bg7 8.Qd2 O-O 9.O-O-O d5 10.Nxc6 bxc6 11.e5 Nd7 12.f4 e6 13.Na4 f6 14.exf6 Qxf6 15.g3 e5 16.fxe5 Nxe5 17.Bd4 Qf5 18.Be2 Qh3 19.Qc3 Re8 20.Nc5 Bf5 21.Rhe1 Qxh2 22.Ba6 Bh6+ 23.Kb1 Nf3 24.Rh1 Qxc2+ 25.Qxc2 Bxc2+ 26.Kxc2 Nxd4+ 27.Rxd4 Be3 28.Kd3 Bxd4 29.Kxd4 Rab8 30.Bb7 Re2 31.b3 Rd2+ 32.Kc3 Rxa2 33.Bxc6 Rc8 34.Bxd5+ Kg7 35.b4 Ra3+ 36.Bb3 a5 37.Kb2 axb4 38.Ne6+ Kf6 39.Nf4 Rxb3+ 40.Kxb3 Rc3+ 41.Kxb4 Rxg3 42.Rf1 Rg4 43.Kc3 g5 44.Nd5+ Ke5 45.Ne3 Rg3 46.Kd2 h5 47.Nc4+ Ke4 48.Re1+ Kd4 49.Nd6 Rg2+ 50.Re2 Rxe2+ 51.Kxe2 Ke5 52.Nf7+ Kf5 53.Nxg5 Kxg5 54.Kf3 h4 55.Kg2 h3+ 56.Kh2 Kh4 57.Kh1 Kg3 58.Kg1 h2+ 59.Kh1 Kh3 1/2-1/2
2025.01.21 Titled Tue 21st Jan Early
204814 FM Melaa, Sondre (2329) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.Bf4 g6 3.Nf3 Bg7 4.e3 O-O 5.Be2 d6 6.h3 b6 7.O-O Bb7 8.Bh2 Nbd7 9.Nfd2 e5 10.c4 Re8 11.Nc3 Nf8 12.Qc2 exd4 13.exd4 Ne6 14.Qd3 d5 15.Bf3 dxc4 16.Qxc4 c6 17.Be5 b5 18.Qd3 a6 19.Rad1 Qb6 20.Nde4 Nxe4 21.Nxe4 Rad8 22.Qc3 b4 23.Qe3 Nxd4 24.Bxg7 Kxg7 25.Qf4 c5 26.Ng5 Re7 27.Bxb7 Ne2+ 28.Kh1 Nxf4 29.Rxd8 Qxd8 30.g3 Ne6 31.Ne4 Qd4 32.Re1 Ng5 33.f3 0-1
2025.01.21 Titled Tue 21st Jan Early
204316 GM Obregon Rivero, J (2485) CM Von Naso, L (2207) 1-0
1.Nf3 f5 2.d4 Nf6 3.c4 g6 4.Nc3 Bg7 5.h4 O-O 6.e3 d6 7.Be2 Nc6 8.d5 Ne5 9.Nxe5 dxe5 10.h5 g5 11.h6 Bh8 12.Qb3 e6 13.dxe6 c6 14.c5 Qe7 15.e4 f4 16.Bc4 Re8 17.f3 Bxe6 18.Bxe6+ Qxe6 19.Qxb7 g4 20.Qb3 Qxb3 21.axb3 g3 22.Bd2 Nd7 23.b4 Bf6 24.Ra6 Rec8 25.Ke2 Kf7 26.Rha1 Ke6 27.Rxa7 Rxa7 28.Rxa7 Rb8 29.Na4 Rg8 30.Rc7 Rg6 31.Rxc6+ Ke7 32.Nb6 Nxb6 33.cxb6 Rg8 34.b5 Rb8 35.Bb4+ Kf7 36.Bd6 Rb7 37.Rc7+ Rxc7 38.bxc7 Ke6 39.c8=Q+ 1-0
2025.01.21 Titled Tue 21st Jan Early
207912 WCM Dudkina, Uliana (2005) GM Obregon Rivero, J (2485) 0-1
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 c5 6.d5 d6 7.O-O b5 8.cxb5 a6 9.Nc3 axb5 10.Nxb5 Qa5 11.Nc3 Nbd7 12.Re1 Ng4 13.Bd2 Ba6 14.a4 Rfb8 15.Qc2 Qb6 16.Rab1 Qb3 17.Qc1 Nge5 18.Nxe5 Nxe5 19.Be4 Nc4 20.Bc2 Qb7 21.e4 Nxd2 22.Qxd2 Qb4 23.Kg2 Rb7 24.f4 Bd4 25.e5 Rab8 26.exd6 exd6 27.Re4 Bc4 28.Qd1 f5 29.Re6 Qa5 30.Qe1 Qd8 31.Kh3 Kf7 32.Qd2 Bxd5 33.Nxd5 Kxe6 34.Nc3 Kf7 35.Re1 Rxb2 36.Qd3 d5 37.Nb5 Bf6 38.Rd1 c4 39.Qe2 Kg7 40.Qg2 d4 41.Rd2 d3 42.Bd1 c3 43.Rxb2 cxb2 44.Na3 b1=Q 45.Nxb1 Rxb1 46.Qd2 Rb2 47.Qc1 h5 48.Bf3 d2 49.Qd1 Qd3 50.Be2 Qc2 0-1
2025.01.21 Titled Tue 21st Jan Early
205371 GM Obregon Rivero, J (2485) IM Maksimovic, Bojan (2505) 1/2-1/2
1.e4 g6 2.d4 Nf6 3.Nc3 d5 4.Bd3 dxe4 5.Nxe4 Bg7 6.Nf3 O-O 7.O-O b6 8.Re1 Bb7 9.Nxf6+ exf6 10.c3 Nd7 11.Be4 Bxe4 12.Rxe4 c5 13.Bf4 f5 14.Re2 Re8 15.d5 Rxe2 16.Qxe2 Nf6 17.c4 Ne4 18.Rd1 Qd7 19.Nd2 Re8 20.Nxe4 Rxe4 21.Be3 Bd4 22.Qd3 Bxb2 23.f3 Re8 24.Bf2 Be5 25.g3 h5 26.Kg2 f4 27.Re1 fxg3 28.Bxg3 Bd4 29.Rxe8+ Qxe8 30.Qe4 Qxe4 31.fxe4 Kf8 32.Bb8 a6 33.Kf3 b5 34.cxb5 axb5 35.e5 g5 36.h3 Ke7 37.Ke4 Bg1 38.Ba7 g4 39.hxg4 hxg4 40.Kf4 Bh2+ 41.Kxg4 Bxe5 42.Bxc5+ Bd6 43.Bd4 Bh2 44.Kf5 Kd6 45.Ke4 f5+ 46.Kxf5 Kxd5 47.Bb2 Kc4 48.Ke4 Bd6 49.Ke3 Bb4 50.Ke2 Bc3 51.Bc1 Bd4 52.Kd2 Be5 53.Kc2 Bd6 54.Bb2 Bc5 55.Bc1 Bb6 56.Bb2 Ba7 57.Bc1 Bd4 58.Bb2 Be3 59.Bc1 Bxc1 60.Kxc1 Kb4 61.Kb2 Ka4 62.a3 Ka5 63.Kb3 Ka6 64.Kb4 Kb6 65.a4 bxa4 66.Kxa4 1/2-1/2
2025.01.21 Titled Tue 21st Jan Early
206679 GM Obregon Rivero, J (2485) FM Fedotov, Nikita2 (2311) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 a6 7.O-O Nf6 8.Bf4 e6 9.Qe2 Be7 10.Rfd1 Qc7 11.Rac1 O-O 12.a3 Nd7 13.Ba2 Qb8 14.h3 Nde5 15.Nd2 b5 16.Bg3 Qa7 17.Kh2 Bb7 18.f4 Nd4 19.Qf1 Nd7 20.Bf2 e5 21.Nd5 Bd8 22.Nf3 Nxf3+ 23.gxf3 Qb8 24.Qg2 Nf6 25.Rg1 g6 26.Ne3 exf4 27.Nf5 d5 28.Bd4 dxe4 29.Qg5 Bd5 30.Bxf6 1-0
2025.01.21 Titled Tue 21st Jan Early
207204 IM Slaby, Je (2464) GM Obregon Rivero, J (2485) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 9.O-O-O Be7 10.Qd3 h6 11.Bd2 a6 12.Nd4 Bd7 13.f4 Qc7 14.f5 e5 15.Nde2 Rc8 16.Kb1 b5 17.Ng3 b4 18.Nd5 Nxd5 19.exd5 Bb5 20.Qe4 a5 21.Rc1 Qc4 22.b3 Qxe4 23.Nxe4 Bd7 24.g4 O-O 25.h3 f6 26.Kb2 Rb8 27.Ra1 Bc8 28.Rhd1 Rb5 29.c4 bxc3+ 30.Nxc3 Rb8 31.Be3 Bd7 32.Rac1 a4 33.Ne4 Rb7 34.Rc3 h5 35.Rdc1 hxg4 36.hxg4 axb3 37.axb3 Rfb8 38.Nd2 g6 39.fxg6 Kg7 40.Rc7 Bd8 41.Rxb7 Rxb7 42.Ne4 Be7 43.Ra1 Bxg4 44.Ra6 Rd7 45.b4 Bf3 46.Nc3 f5 47.b5 f4 48.Bg1 e4 49.b6 Rd8 50.Ra7 Kf8 51.g7+ Kf7 52.Rc7 e3 53.b7 Rb8 54.g8=Q+ Kxg8 55.Rc8+ Kf7 56.Rxb8 Bf6 57.Rc8 e2 58.Bf2 Bd4 59.Be1 Bxd5 60.b8=Q f3 61.Rf8+ Kg6 62.Qe8+ Kg5 63.Rg8+ Bxg8 64.Qxg8+ Kf4 65.Qf7+ Ke3 66.Kc2 d5 67.Qf5 Bxc3 68.Qd3+ Kf4 69.Bxc3 Kg3 70.Be1+ Kg2 71.Qe3 d4 72.Qf2+ 1-0
2025.01.21 Titled Tue 21st Jan Early
206181 CM Przybylski, Bartosz (2090) GM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3 a6 8.Nxc6 bxc6 9.Qg3 h6 10.Be3 Qa5 11.Bd3 Rb8 12.O-O-O Rxb2 13.Kxb2 Qb4+ 14.Kc1 Qxc3 15.Kb1 e5 16.Bc1 Qb4+ 17.Bb2 Be6 18.a3 Qa5 19.f4 Nh5 20.Qe1 Qxe1 21.Rhxe1 Nxf4 22.Bxa6 Nxg2 23.Rg1 Nf4 24.a4 Be7 25.Bb7 Kd7 26.Bxe5 Rb8 27.Bxf4 Rxb7+ 28.Kc1 g5 29.Bxd6 Bxd6 30.e5 Bd5 31.exd6 Rb4 32.Rgf1 Rxa4 33.Rf6 Rh4 34.Re1 Be6 35.Re2 Kxd6 36.Kd2 c5 37.c3 c4 38.Ke3 Ke5 39.Ref2 Re4+ 40.Kd2 Rh4 41.R6f3 Kd6 42.Kc1 Re4 43.Kd2 Rg4 44.Rf6 Rh4 45.R6f3 Ke7 46.Re3 Rg4 47.Rh3 Rh4 48.Rxh4 gxh4 49.Ke3 h3 50.Kd4 Kf8 51.Rf4 Kg7 52.Ke5 Kg6 53.Rf6+ Kg5 54.Rf3 h5 55.Rg3+ Bg4 56.Kd4 f5 57.Kxc4 f4 58.Rg1 f3 59.Kd4 Kf4 60.Rf1 Bc8 61.Rf2 Ba6 62.c4 Bb7 63.c5 Bc6 64.Rb2 Ba8 65.Rb8 Be4 66.Rf8+ Bf5 67.Ra8 f2 68.Ra1 Kf3 69.c6 Kg2 70.Ra2 Kg1 71.Ra1+ f1=Q 72.Rxf1+ Kxf1 73.Ke5 Bc8 74.Kf6 Kg2 75.Kg5 Kxh2 76.Kxh5 Kg2 77.Kh4 h2 78.Kg5 h1=Q 79.Kf6 Qh7 0-1
2025.01.21 Titled Tue 21st Jan Early
205675 GM Obregon Rivero, J (2485) GM Theodorou, Nikolas (2612) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 a6 6.Bc4 e6 7.O-O Nge7 8.Bg5 f6 9.Be3 b5 10.Bb3 Ng6 11.Nd2 Bb4 12.f4 O-O 13.Qh5 Qe8 14.Kh1 Na5 15.Bc2 Bb7 16.Rf3 Ne7 17.Qh4 Ng6 18.Qh5 Rf7 19.Rh3 Nf8 20.a4 Rc8 21.axb5 Re7 22.bxa6 Bxa6 23.Rxa5 g6 24.Rg5 fxg5 25.Qxg5 Bxc3 26.bxc3 Rxc3 27.Bd1 Rc1 28.Qg4 Qc8 29.Nb3 Rb1 30.Nd2 Ra1 31.Nb3 Ra3 32.Bd4 Qc4 33.Rf3 Rxb3 34.Bxb3 Qxd4 35.h3 Qxe4 36.Qg5 Rf7 37.Kh2 Bb7 38.Qg3 Qf5 39.Rf2 Qf6 40.Qe3 Kg7 41.Qb6 Bd5 42.Bxd5 exd5 43.Qc5 d4 44.Qd5 Ne6 45.f5 gxf5 46.Rf3 f4 0-1
2025.01.21 Titled Tue 21st Jan Early
206467 IM Taher, Yoseph Theolifus (2439) GM Obregon Rivero, J (2485) 1-0
1.d4 Nf6 2.Nc3 d5 3.Bf4 a6 4.e3 c5 5.dxc5 Qa5 6.Qd2 e6 7.Bd6 Bxd6 8.cxd6 O-O 9.O-O-O Rd8 10.Kb1 Rxd6 11.Nf3 Nc6 12.g4 Nxg4 13.Rg1 Nf6 14.e4 d4 15.e5 Nxe5 16.Qg5 Ne8 17.Ne4 Rd5 18.Nf6+ Kf8 19.Nxd5 Ng6 20.Bc4 exd5 21.Bb3 Be6 22.h4 h6 23.Qg3 Qc7 24.Qg2 Nf4 25.Qf1 d3 26.cxd3 Rd8 27.Nd4 Qe5 28.Nxe6+ Qxe6 29.Ka1 Qf6 30.d4 b5 31.f3 Nd6 32.Qe1 Nc4 33.Qb4+ Kg8 34.Qc5 Qxh4 35.Qc7 Qf6 36.Rg4 g5 37.Rgg1 Qd6 38.Qb7 Qb6 39.Qe7 Qd6 40.Qe1 a5 41.Bxc4 bxc4 42.Qxa5 Nd3 43.Rd2 Rb8 44.Rh1 Qc6 45.Qc3 Ra8 46.Rxd3 Qa4 47.a3 cxd3 48.Qxd3 Qc6 49.f4 Qg6 50.Qf3 Qe4 51.Qh5 1-0
2025.01.21 Titled Tue 21st Jan Early
207526 GM Obregon Rivero, J (2485) FM Zakrzewski, Mare (2288) 1-0
1.Nf3 Nc6 2.d4 d5 3.g3 Bg4 4.Bg2 Nf6 5.c4 e6 6.O-O Bxf3 7.Bxf3 h5 8.Nc3 h4 9.cxd5 Nxd5 10.Nxd5 exd5 11.g4 Qd7 12.h3 O-O-O 13.e3 Kb8 14.Kg2 f5 15.Bd2 f4 16.Rc1 fxe3 17.Bxe3 Be7 18.Qb3 Rhf8 19.Rc3 Bf6 20.Rd1 Ka8 21.Rc5 Ne7 22.Bf4 c6 23.Ra5 Ng6 24.Bh2 Be7 25.Qb6 a6 26.Rc1 Nf4+ 27.Kf1 g5 28.Rxc6 Qxc6 29.Rxa6+ Kb8 30.Qa7+ Kc7 31.Rxc6+ Kxc6 32.Qa4+ Kc7 33.Qc2+ Kb8 34.Qh7 Bd6 35.Bxf4 Bxf4 36.Qd3 Rf6 37.Qb3 Rfd6 38.a3 R8d7 39.Kg2 Kc8 40.Qb5 Kd8 41.b4 Ke7 42.a4 Ke6 43.Qe2+ Kf7 44.Qb5 Ke6 45.a5 Rc7 46.Qe2+ Kf7 47.Qd3 Kg7 48.b5 Rc4 49.b6 Ra4 50.Qf5 Rxa5 51.Qc8 Rf6 52.Bxd5 Rf7 53.Bxf7 Kxf7 54.Qxb7+ Ke6 55.Qc6+ Ke7 56.b7 Ra1 57.Qc8 Rb1 58.Qc5+ Kf7 59.Qd5+ Ke7 60.Qe4+ Kd6 61.d5 Kc5 62.Qe6 Rb6 63.Qe7+ Kxd5 64.Qd7+ Kc5 65.Qc8+ Kb5 66.Kf3 Ka5 67.Ke4 Rb5 68.Kd3 Rb3+ 69.Kc4 Rb4+ 70.Kd5 Rb5+ 71.Ke6 Rb6+ 72.Kd7 Kb5 73.Ke7 Kb4 74.Kf7 Kb5 75.Qd7+ Ka6 76.Qa4+ Kxb7 77.Ke7 Rc6 78.Qb5+ Kc7 79.Qa4 Bd6+ 80.Ke8 Bf4 81.Qa7+ Kd6 82.Qe7+ Kd5 83.Qd7+ Rd6 84.Qb5+ Ke6 85.Qc4+ Kf6 86.Qc3+ Ke6 87.Qb3+ Ke5 88.Qb2+ Ke4 89.Ke7 Kf3 90.Qb3+ Kxf2 91.Qc3 Kg2 92.Qb3 Rd2 93.Kf6 Rf2 94.Kg6 Rf3 95.Qc2+ Kg3 96.Qd1 Rf2 97.Qg1+ Rg2 98.Qe1+ Kxh3 99.Qh1+ Kg3 100.Kh5 Rh2 101.Qe1+ Kf3 102.Kg6 h3 103.Kf5 Re2 104.Qh1+ Kg3 105.Qg1+ Rg2 106.Qe1+ Rf2 107.Qg1+ Kf3 108.Qh1+ Kg3 109.Qg1+ Rg2 110.Qe1+ Kf3 111.Qf1+ Kg3 112.Qd3+ Kh2 113.Qf1 Rd2 114.Ke4 Kg3 115.Qg1+ Kh4 116.Kf5 1-0
2025.01.21 Titled Tue 21st Jan Early
207590 FM Novoselov, R (2261) GM Obregon Rivero, J (2485) 1-0
1.e4 c5 2.Nc3 e6 3.Nge2 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.d3 O-O 8.Be3 Nd4 9.f4 d5 10.e5 Nxe2+ 11.Nxe2 b6 12.d4 Ba6 13.dxc5 bxc5 14.Bxc5 Qc7 15.Bxe7 Qxe7 16.Rf2 Bxe2 17.Rxe2 Rab8 18.c3 Rfc8 19.Qd3 a5 20.Rd1 Bf8 21.g4 Rb6 22.f5 Rcb8 23.Rdd2 Qg5 24.Qf3 Bc5+ 25.Kh1 Rxb2 26.Rxb2 Rxb2 27.Rxb2 Qc1+ 28.Bf1 Qxb2 29.fxe6 fxe6 30.Qf6 Qb6 31.a4 Bf8 32.Bb5 Bg7 33.Qe7 h5 34.gxh5 gxh5 35.Qe8+ Bf8 36.Qg6+ Kh8 37.Qxh5+ Kg7 38.Qg5+ Kh7 39.Bd3+ Kh8 40.Qh5+ 1-0
2024.12.31 Titled Tue 31st Dec Late
235779 IM Pham Le Thao Nguyen (2384) GM Obregon Rivero, J (2496) 0-1
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 O-O 5.h3 d6 6.c4 Nfd7 7.Nc3 e5 8.Bg5 f6 9.Bh4 Nc6 10.Be2 Ne7 11.g4 Kh8 12.Qc2 b6 13.Rg1 Bb7 14.O-O-O Qe8 15.dxe5 dxe5 16.Nd2 Nc5 17.f4 exf4 18.exf4 Nc6 19.Bf2 Nb4 20.Qb1 Rd8 21.Bxc5 bxc5 22.a3 f5 23.Rge1 Nc6 24.Bf3 Qf7 25.g5 Ba8 26.Bd5 Qd7 27.Nf3 Nd4 28.Nxd4 cxd4 29.Bxa8 Rxa8 30.Nd5 c6 31.Nb4 Qd6 32.Nd3 Rae8 33.Qc2 Re4 34.h4 Rfe8 35.Qh2 Qe6 36.h5 Qxc4+ 37.Kd2 Rxe1 38.Rxe1 Rxe1 39.Nxe1 gxh5 40.Qxh5 Qe6 41.Nd3 c5 42.Nxc5 Qe3+ 43.Kd1 Qg1+ 44.Kd2 Qe3+ 45.Kd1 d3 46.Nb3 Bxb2 47.Nd2 Bc3 48.Nc4 Qe1# 0-1
2024.12.31 Titled Tue 31st Dec Late
235268 GM Obregon Rivero, J (2496) IM Oro, Faustino (2433) 0-1
1.Nf3 d5 2.b3 Nf6 3.Bb2 e6 4.e3 Be7 5.d4 O-O 6.Bd3 c5 7.O-O b6 8.Qe2 Bb7 9.Nbd2 Nbd7 10.e4 dxe4 11.Nxe4 Nxe4 12.Bxe4 Bxe4 13.Qxe4 Nf6 14.Qe2 cxd4 15.Nxd4 Qc7 16.c4 Rad8 17.Rad1 h6 18.Nb5 Qb7 19.Rxd8 Rxd8 20.Rd1 Rf8 21.h3 a6 22.Nd6 Qc6 23.Bxf6 Bxf6 24.Ne4 Be5 25.a4 Qc7 26.Nd2 Bh2+ 27.Kf1 Bf4 28.Nf3 Bd6 29.Qe4 Qe7 30.Rd3 Bc5 31.g3 Qf6 32.Qe5 Qe7 33.Qe4 Qf6 34.Qe5 Qg6 35.Ke2 h5 36.h4 Qg4 37.Qc3 a5 38.Qe5 f6 39.Qc3 e5 40.Ke1 e4 41.Nh2 Qh3 42.Rd7 Qxh2 43.Qd2 Qg1+ 0-1
2024.12.31 Titled Tue 31st Dec Late
235564 GM Obregon Rivero, J (2496) IM Estrada Nieto, J (2199) 1-0
1.Nf3 d5 2.b3 Nf6 3.Bb2 Bf5 4.e3 e6 5.d4 h6 6.Bd3 Nbd7 7.O-O Bd6 8.c4 c6 9.Nc3 Bxd3 10.Qxd3 O-O 11.e4 dxe4 12.Nxe4 Nxe4 13.Qxe4 Nf6 14.Qe2 a5 15.a4 Be7 16.Rad1 Qb6 17.Rd3 Rfd8 18.Rfd1 Qa6 19.Kf1 b5 20.Ne5 bxa4 21.bxa4 Rab8 22.Bc3 Nd7 23.d5 cxd5 24.cxd5 exd5 25.Nxd7 Rxd7 26.Bxg7 Bg5 27.Be5 Re8 28.f4 Rde7 29.h4 Bf6 30.Rg3+ Kh8 31.Qxa6 Re6 32.Qxa5 Bxe5 33.fxe5 Rxe5 34.Qc3 Kh7 35.Qd3+ f5 36.Qd4 h5 37.Rg5 Kh6 38.Qf4 Re4 39.Qxf5 R4e6 40.Rxh5+ Kg7 41.Rh7+ 1-0
2024.12.31 Titled Tue 31st Dec Late
235821 GM Obregon Rivero, J (2496) GM Yoo, Christopher Woojin (2588) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O d6 8.Bf4 Nf6 9.Qe2 Be7 10.Rfd1 Qc7 11.Rac1 O-O 12.a3 b5 13.Ba2 Nh5 14.Be3 Qd7 15.e5 f5 16.Nd5 Bd8 17.exd6 Nf6 18.Ne7+ Nxe7 19.dxe7 Qxe7 20.Bc5 Qe8 21.Bxf8 Kxf8 22.Ng5 e5 23.Rxc8 Rxc8 24.Ne6+ Ke7 25.Qxe5 1-0
2024.12.31 Titled Tue 31st Dec Late
235619 GM Obregon Rivero, J (2496) Haraguchi, Diego Sashaki (2058) 1-0
1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.d3 Be7 6.Nbd2 d5 7.e4 dxe4 8.Ng5 Nbd7 9.Ngxe4 Qc8 10.Re1 O-O 11.Qe2 Nxe4 12.dxe4 e5 13.Nc4 f6 14.Ne3 Qe8 15.Nd5 Bd6 16.Rd1 Rd8 17.a4 a5 18.Be3 Kh8 19.b3 Nc5 20.Rd2 Ne6 21.Rad1 Qf7 22.Nxb6 Nd4 23.Bxd4 exd4 24.Rxd4 Qe7 25.Nc4 Bb4 26.Rxd8 Rxd8 27.Rxd8+ Qxd8 28.e5 Bxg2 29.Kxg2 fxe5 30.Qxe5 h6 31.Qe4 Qf6 32.h4 Bc5 33.Qa8+ Kh7 34.Qf3 Qe6 35.Nxa5 1-0
2024.12.31 Titled Tue 31st Dec Late
234861 GM Obregon Rivero, J (2496) CM Nersissian, G (2035) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 b6 4.O-O Bb7 5.c4 e6 6.d4 Be7 7.Nc3 O-O 8.Nd2 Nbd7 9.e4 dxe4 10.Ndxe4 Nxe4 11.Nxe4 Rb8 12.Qa4 Nf6 13.Nxf6+ Bxf6 14.Qxa7 Bxg2 15.Kxg2 Qxd4 16.Qxc7 Rfc8 17.Qf4 Qxc4 18.Qf3 Qc6 19.Qxc6 Rxc6 20.Bf4 Rbc8 21.Rab1 Rc2 22.b4 Rxa2 23.Rfc1 Rcc2 24.Rxc2 Rxc2 25.Be3 b5 26.Bc5 h5 27.Rd1 Rb2 28.Rd3 Kh7 29.Ra3 g5 30.Ra5 Bc3 31.Rxb5 Kg6 32.h3 g4 33.h4 f5 34.Rb8 e5 35.Rb6+ Kf7 36.Rh6 f4 37.gxf4 exf4 38.Rxh5 Ke6 39.Rg5 g3 40.h5 gxf2 41.h6 f3+ 42.Kf1 Bd2 43.h7 1-0
2024.12.31 Titled Tue 31st Dec Late
235137 GM Xiong, Jeffery (2636) GM Obregon Rivero, J (2496) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Be3 Nc6 7.d5 Ne5 8.f4 Neg4 9.Bd2 Nh6 10.h3 e6 11.Bf3 exd5 12.cxd5 Re8 13.Nge2 c6 14.dxc6 bxc6 15.O-O d5 16.e5 Nd7 17.Nd4 Bb7 18.Rc1 f6 19.e6 Nf8 20.Re1 c5 21.Nxd5 Bxd5 22.e7 Qd7 23.exf8=Q+ Bxf8 24.Bxd5+ Qxd5 25.Qb3 Rxe1+ 26.Bxe1 Rd8 27.Ne6 Qxb3 28.axb3 Rd3 29.Nxf8 Kxf8 30.Rxc5 Rxb3 31.Bc3 Rb7 32.Bxf6 Nf5 33.g4 Nd6 34.Bd4 Ne4 35.Ra5 Rd7 36.Bxa7 Rd2 37.Rb5 Ng3 38.Be3 Rc2 39.b4 Ne2+ 40.Kh1 Ng3+ 41.Kg1 Ne2+ 42.Kf1 Ng3+ 43.Kg1 1/2-1/2
2024.12.31 Titled Tue 31st Dec Late
234657 FM Ponce Cano, Adrian (2197) GM Obregon Rivero, J (2496) 1-0
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Bd7 5.Qc2 Nc6 6.d4 cxd4 7.cxd4 Nb4 8.Qb3 Qb6 9.Nc3 e6 10.Be3 d5 11.exd5 Nfxd5 12.O-O Bd6 13.Ne4 Be7 14.Nc5 Bc6 15.Ne5 Bxc5 16.dxc5 Qc7 17.Nc4 O-O 18.a3 Nxe3 19.Nxe3 Nd5 20.Rac1 Nf4 21.Bb5 a6 22.Bxc6 Ne2+ 23.Kh1 Nxc1 24.Rxc1 Qxc6 25.h3 Rac8 26.Rc4 Rfd8 27.Qc3 Qd7 28.Rg4 g6 29.Rh4 Qd2 30.Qf6 Rxc5 31.Ng4 h5 32.Nh6+ Kh7 33.Nxf7 Rf8 34.Qe7 Kg8 35.Nd6 Qc1+ 36.Kh2 Re5 37.Ne4 1-0
2024.12.31 Titled Tue 31st Dec Late
235466 Muniz, Francisco Allysson da S. (2096) GM Obregon Rivero, J (2496) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f3 d6 6.Be3 c6 7.Qd2 a6 8.a4 a5 9.Rc1 Na6 10.Bd3 e5 11.d5 Nh5 12.Nge2 f5 13.dxc6 bxc6 14.Bg5 Bf6 15.Bxf6 Qxf6 16.Bb1 Nc5 17.Rd1 Rd8 18.O-O Ba6 19.Ba2 f4 20.b3 Rab8 21.Rb1 g5 22.g4 Ng7 23.Kg2 Nge6 24.Nd1 Rb4 25.Nf2 Nf8 26.Nc1 Ng6 27.Nfd3 Nh4+ 28.Kh1 Nxd3 29.Nxd3 c5 30.Nxb4 axb4 31.Qd5+ Qf7 32.Rf2 Qxd5 33.cxd5 Kf7 34.Rd1 Ke7 35.Bb1 Ra8 36.Bd3 Bc8 37.Bb5 Ra5 38.Bc6 Ba6 39.Rc1 Kd8 40.h3 Kc7 41.Kh2 Kb6 42.Kh1 Bc8 43.Kh2 Ra7 44.Kh1 Ka5 45.Bb5 Rc7 46.Rcf1 h5 47.Rc2 hxg4 48.hxg4 Rh7 49.Kg1 Kb6 50.Rh2 Rh6 51.Kf2 Rh7 52.Rfh1 Bd7 53.Bxd7 Rxd7 54.Rxh4 gxh4 55.Rxh4 c4 56.bxc4 b3 57.Ke2 Kc5 58.Kd3 Kb4 59.Rh1 Ra7 60.g5 Rxa4 61.g6 Ra7 62.Rh7 Ra8 63.Rb7+ Ka3 64.Kc3 Ka2 65.Rxb3 Rg8 66.Rb6 Rxg6 67.c5 Rg3 68.Kc2 Ka3 69.cxd6 Rg7 70.Kc3 Ka4 71.Kc4 1-0
2024.12.31 Titled Tue 31st Dec Late
234456 GM Obregon Rivero, J (2496) CM Padalka, A (2093) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 c5 6.d4 d6 7.Nc3 Nc6 8.d5 Na5 9.Nd2 e6 10.e4 exd5 11.cxd5 Rb8 12.a3 b5 13.b4 Nd7 14.Qc2 Nc4 15.Nxc4 bxc4 16.b5 Ne5 17.a4 Nd3 18.Bd2 f5 19.Qa2 fxe4 20.Qxc4 Bf5 21.Bxe4 Ne5 22.Qe2 Bxe4 23.Nxe4 Nf3+ 24.Kg2 Nxd2 25.Qxd2 Bxa1 26.Rxa1 Qe7 27.Re1 Rbe8 28.f4 Rd8 29.Ng5 Qf6 30.Ne6 Rde8 31.Nxf8 Rxe1 32.Qxe1 Kxf8 33.Qe6 Qxe6 34.dxe6 Ke7 35.a5 Kxe6 36.b6 axb6 37.a6 1-0
2024.12.31 Titled Tue 31st Dec Late
234988 Ferreira, VitorH (2128) GM Obregon Rivero, J (2496) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.Kb1 Qc7 11.g4 h5 12.gxh5 Nxh5 13.Bxe7 Nxe7 14.f4 O-O-O 15.Be2 Kb8 16.Qe3 d5 17.e5 g6 18.Bg4 Rc8 19.Rd2 Ka8 20.Nf3 Qc5 21.Qxc5 Rxc5 22.Ng5 Be8 23.Ne2 Rc7 24.Bxh5 Rxh5 25.Ng3 Rh4 26.Ne2 Nf5 27.Nf3 Rh3 28.Ng5 Rh4 29.Nf3 Rh5 30.Rdd1 Bb5 31.Ned4 Nxd4 32.Nxd4 Bd7 33.Rdg1 Rc8 34.Rg5 Rh4 35.Ne2 Bb5 36.Nd4 Rxf4 37.Nxb5 axb5 38.b3 Rh8 39.Kb2 b4 40.Rg3 Rh5 41.Re3 Rff5 42.Rd1 Rxh2 43.Rc1 Kb8 44.Rd3 Rxe5 45.Rd4 Re4 46.Rd3 g5 47.Rf1 f5 48.Rh3 Rxh3 0-1
2024.12.18 34th Carlos Torre Mem
246999 IM Otero Acosta, D (2351) GM Obregon Rivero, J (2496) 1/2-1/2
1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.Rc1 Bb7 9.Bxf6 Bxf6 10.cxd5 exd5 11.g3 c6 12.Bg2 Nd7 13.O-O a5 14.Re1 Re8 15.Re2 Be7 16.a3 Bd6 17.Na4 1/2-1/2
2024.12.17 34th Carlos Torre Mem
246961 FM Hidalgo Diaz, Daniel (2405) GM Obregon Rivero, J (2496) 1/2-1/2
1.d4 Nf6 2.Nf3 c5 3.e3 g6 4.Be2 Bg7 5.O-O b6 6.b3 O-O 7.Bb2 Bb7 8.c4 cxd4 9.Nxd4 Nc6 10.Nxc6 dxc6 11.Nc3 Ne4 12.Qc2 Nxc3 13.Bxc3 c5 14.Rfd1 Qc7 15.Bxg7 Kxg7 16.Qc3+ f6 17.Rd2 Rad8 18.Rad1 Bc6 19.Rxd8 Rxd8 20.Rxd8 Qxd8 21.Qd3 Qa8 22.f3 Qb8 23.g3 Kf7 24.Qc3 Qd6 25.Kf2 Qd7 26.Kg2 Qf5 27.e4 Qd7 28.Bd3 Qd6 29.Kf2 Ke8 30.Be2 Qe6 31.Bf1 Kd8 32.Qd2+ Kc7 33.Qh6 Qf7 34.Bh3 e5 35.Qd2 Qe7 36.Qh6 a6 37.a4 Qf7 38.Qd2 Qe7 39.Qh6 Be8 40.Qd2 Bf7 41.Qh6 Bg8 42.Qd2 g5 43.Ke1 Bf7 44.Bf5 h6 45.Kd1 Qd8 46.Qxd8+ Kxd8 47.Kc2 Kc7 48.Kc3 Bh5 49.g4 Bf7 50.Kd3 h5 51.Kc3 h4 52.Kd3 Be8 53.Be6 Bc6 54.Bd5 Bd7 55.Kc3 Bc8 56.Kd3 Kd6 57.Kc3 Bd7 58.Bb7 a5 59.Bd5 1/2-1/2
2024.12.17 34th Carlos Torre Mem
246978 GM Obregon Rivero, J (2496) GM Cori, J (2595) 0-1
1.Nf3 d5 2.g3 Bg4 3.Bg2 c6 4.d4 Nf6 5.Nbd2 Nbd7 6.h3 Bh5 7.c4 e6 8.g4 Bg6 9.Nh4 Bd6 10.Nxg6 hxg6 11.e3 g5 12.cxd5 exd5 13.a3 Nf8 14.b4 Ng6 15.Nf3 Ne4 16.Nd2 Nxd2 17.Bxd2 Nh4 18.Bf1 Qf6 19.Bc3 Kf8 20.Qe2 Rh6 21.Kd1 Kg8 22.Kc2 Qe7 23.Qd2 a5 24.Bd3 b6 25.bxa5 bxa5 26.a4 c5 27.dxc5 Bxc5 28.Bb5 Rd6 29.Qd3 d4 30.exd4 Bb4 31.Bb2 Rc8+ 32.Kb3 Nf3 33.d5 Nd2+ 34.Ka2 Rcd8 35.Rhe1 Qb7 36.Re5 f6 37.Re2 Rxd5 38.Bc4 Qf7 39.Rae1 Rxd3 40.Re8+ Bf8 0-1
2024.12.16 34th Carlos Torre Mem
246926 GM Obregon Rivero, J (2496) CM Garcia de Dios, Jose Antonio (2213) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 b6 8.Bb5+ Bd7 9.Bd3 Ba4 10.O-O c4 11.Be2 Na6 12.g3 Nc7 13.Nh4 Qd7 14.f4 O-O-O 15.f5 exf5 16.Nxf5 Nxf5 17.Rxf5 Qxf5 18.Bg4 Qxg4 19.Qxg4+ Ne6 20.Bg5 Rd7 21.Rf1 h6 22.Bc1 Re8 23.Rf2 Kc7 24.Kg2 Kc8 25.Qh5 Nd8 26.h4 Rde7 27.Kh2 Re6 28.Qg4 g5 29.hxg5 hxg5 30.Bxg5 Rh8+ 31.Kg2 Rg8 32.Qh4 Nc6 33.Rxf7 Bxc2 34.Qh3 Be4+ 35.Kg1 Re8 36.Be7 Nd8 37.Rg7 1-0
2024.12.16 34th Carlos Torre Mem
246942 GM Obregon Rivero, J (2496) GM Martinez Duany, L (2449) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c3 Be7 6.O-O O-O 7.Re1 Re8 8.Nbd2 Bf8 9.Nf1 a6 10.Ba4 b5 11.Bc2 g6 12.Ng3 Bg7 13.a3 a5 14.d4 a4 15.h3 Bd7 16.Bg5 h6 17.Be3 Na5 18.Qc1 Kh7 19.Nd2 Qc8 20.Kh2 c5 21.dxe5 dxe5 22.f4 Qc7 23.Rf1 Be6 24.fxe5 Nd7 25.Kh1 Nc4 26.Bg1 Bxe5 27.Ne2 Ndb6 28.Nf3 Bg7 29.Nf4 Rad8 30.Nxe6 Rxe6 31.Rb1 Rd7 32.b3 axb3 33.Rxb3 Qc6 34.Qf4 Rf6 35.Qg4 Rxf3 36.Rxf3 Nd2 37.e5 Nxf3 38.Qxf3 Qxf3 39.gxf3 Nc4 40.Rxb5 Nxa3 41.Rb2 Nc4 42.e6 Re7 43.Ra2 fxe6 44.Be4 Rd7 45.Rg2 Nd2 46.Bxg6+ Kh8 47.Bxc5 Nxf3 48.Bc2 Ne1 49.Re2 Nxc2 50.Rxc2 Rd3 51.Kg2 Rxc3 52.Rxc3 Bxc3 1/2-1/2
2024.12.15 34th Carlos Torre Mem
246907 FM Gutierrez Delgado, Y (2311) GM Obregon Rivero, J (2496) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6 7.Nb3 Bd7 8.Be2 e6 9.Bf4 Ne5 10.Qd2 a6 11.O-O-O Qc7 12.Bg3 b5 13.f4 Nc4 14.Qd4 e5 15.fxe5 dxe5 16.Nd5 Nxd5 17.exd5 Bd6 18.Qc3 Rc8 19.Bxc4 b4 20.Qd3 Qxc4 21.Qxc4 Rxc4 22.Nd2 Rc8 23.Ne4 Bb8 24.Bf2 Bf5 25.Rhe1 Rc4 26.Rd4 exd4 27.Nd6+ Kd7 28.Nxc4 Bf4+ 29.Kb1 d3 30.Nb6+ Kd6 31.cxd3 Bxd3+ 32.Ka1 a5 33.Bd4 Bb5 34.g3 Bh6 35.a4 bxa3 36.bxa3 Re8 37.Rxe8 Bxe8 38.Kb2 f5 39.Kc3 Bb5 40.a4 Ba6 41.h4 g6 42.Nc4+ Kxd5 43.Nxa5 Bf8 44.Nb3 Be2 45.a5 Bf1 46.Bb6 Bd6 47.Bf2 Bc4 48.Nd2 Be2 49.Kb3 h6 50.Kc3 Be5+ 51.Kb4 Ba6 52.Nb3 Bd6+ 53.Kc3 g5 54.hxg5 hxg5 55.Be3 g4 56.Bf2 Be5+ 57.Kc2 Bd6 58.Kc3 Bc7 59.Be1 Be5+ 60.Kb4 Bd6+ 61.Kc3 Ke4 62.Nd2+ Ke3 63.Nc4+ Bxc4 64.Kxc4 Bb8 65.a6 Kf3 66.Bb4 f4 67.gxf4 g3 68.Bc5 Kxf4 69.Kd5 g2 70.Kc6 Kf3 71.Bg1 Ke2 72.Kb7 Kf1 73.Bb6 Bg3 74.a7 Bf2 75.a8=Q g1=Q 76.Qa1+ Kg2 77.Qxg1+ Kf3 1/2-1/2
2024.12.14 34th Carlos Torre Mem
246873 IM Griffith, Kyron (2397) GM Obregon Rivero, J (2496) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 Bg7 11.g3 f5 12.exf5 Bxf5 13.Bg2 Rc8 14.c3 Ne7 15.Nc2 Nxd5 16.Bxd5 O-O 17.Ne3 Be6 18.a4 Qd7 19.axb5 axb5 20.Ra6 Rfd8 21.O-O Rc5 22.Bxe6 fxe6 23.Qg4 Qf7 24.Rd1 h5 25.Qh3 Bf8 26.Rda1 Be7 27.Ra8 Rcc8 28.Rxc8 Rxc8 29.Nd5 Bg5 30.Ra7 Qg6 31.Ne7+ Bxe7 32.Rxe7 Re8 33.Ra7 Rf8 34.Qf1 Qc2 35.Qe1 Qxb2 36.Qe3 Qb1+ 37.Kg2 Qf5 38.h4 e4 39.Rd7 Qf3+ 40.Qxf3 exf3+ 41.Kh3 d5 42.g4 hxg4+ 43.Kxg4 b4 44.cxb4 Rb8 45.Kxf3 Rxb4 46.Kg3 Re4 47.f4 1/2-1/2
2024.12.14 34th Carlos Torre Mem
246890 GM Obregon Rivero, J (2496) IM Jimenez Garcia, Emmanuel (2365) 1/2-1/2
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qc2 c6 6.Bg2 Bb4+ 7.Nbd2 O-O 8.O-O d5 9.Rd1 Nbd7 10.e4 dxe4 11.Ne5 Bxd2 12.Bxd2 Bb7 13.Bg5 h6 14.Nxd7 Qxd7 15.Bxf6 gxf6 16.Qxe4 Rad8 17.Rac1 Rfe8 18.Bf3 f5 19.Qe3 Kg7 20.a4 Qe7 21.c5 bxc5 22.dxc5 e5 23.b4 a6 24.Bg2 Qf6 25.b5 axb5 26.axb5 e4 27.b6 Ba6 28.Rxd8 Rxd8 29.Qa3 Bd3 30.Qa1 Rd4 31.Bh3 Kg6 32.b7 Rb4 33.Qa8 Qb2 34.Qg8+ Kf6 35.Qh8+ Kg6 36.Qg8+ Kf6 37.Re1 Qd2 38.Qh8+ Kg6 39.Qg8+ Kf6 40.Qh8+ Kg6 1/2-1/2
2024.12.03 Titled Tue 3rd Dec Early
268370 FM Lopez Idarraga, D (1976) GM Obregon Rivero, J (2496) 1-0
1.e4 c5 2.Nc3 e6 3.Nge2 Nc6 4.g3 Nf6 5.Bg2 Be7 6.O-O O-O 7.d4 cxd4 8.Nxd4 d6 9.Nxc6 bxc6 10.e5 dxe5 11.Bxc6 Rb8 12.Qxd8 Rxd8 13.b3 Ba6 14.Bf3 Bxf1 15.Kxf1 Rbc8 16.Nd1 e4 17.Be2 Rxc2 18.Ne3 Rc7 19.Nc4 Nd5 20.Bd2 Bb4 21.Be3 Nxe3+ 22.fxe3 f5 23.Rd1 Rxd1+ 24.Bxd1 Kf7 25.Be2 Kf6 26.a3 Be7 27.h4 g6 28.b4 h6 29.Ke1 g5 30.hxg5+ hxg5 31.Kf2 e5 32.g4 f4 33.Nd2 Rc2 34.Nxe4+ Ke6 35.Kf3 Ra2 36.Bc4+ Kd7 37.Bxa2 Kc6 1-0
2024.12.03 Titled Tue 3rd Dec Early
268248 GM Obregon Rivero, J (2496) FM Pranav K P (2276) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 Bxf3 7.Qxf3 Nf6 8.d3 h6 9.Qg3 Qd6 10.Nd2 Qe6 11.f4 exf4 12.Qxf4 Bd6 13.Qf5 Qxf5 14.Rxf5 O-O-O 15.e5 Bc5+ 16.Kh1 Nd7 17.Ne4 Bd4 18.Rxf7 Nxe5 19.Rf1 Rhf8 20.Re1 Rf7 21.Rb1 Rdf8 22.Bd2 b6 23.c3 Bf2 24.Nxf2 Rxf2 25.Be3 Rc2 26.Rbd1 Rxb2 27.Bc1 Rbf2 28.Ba3 R8f5 29.d4 Nc4 30.Be7 Rxa2 31.Bh4 g5 32.Bg3 Nd6 33.Re6 Rb5 34.Rxh6 Rbb2 35.Bxd6 cxd6 36.Rg1 Kd7 37.Re1 b5 38.Ree6 Rxg2 39.Rxd6+ Ke7 40.Rde6+ Kf7 41.Ref6+ Ke8 42.Re6+ Kf8 43.Ref6+ Kg7 44.Rfg6+ Kf7 45.Rf6+ Ke7 46.Re6+ Kf7 47.Ref6+ 1/2-1/2
2024.12.03 Titled Tue 3rd Dec Early
268016 CM Mostbauer, Maximilian (2178) GM Obregon Rivero, J (2496) 1/2-1/2
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 c5 5.O-O cxd4 6.b3 O-O 7.Bb2 Nc6 8.Nxd4 Qb6 9.e3 d6 10.Nd2 Bd7 11.c4 Rfc8 12.Qe2 Rab8 13.Rfc1 a6 14.h4 Qa5 15.a3 e6 16.b4 Qd8 17.Ne4 Nxe4 18.Bxe4 Qe7 19.Nxc6 Bxc6 20.Bxc6 Rxc6 21.Bxg7 Kxg7 22.Rc2 Rbc8 23.Rac1 Qf6 24.Kg2 h5 25.Rd1 Qe5 26.Rcd2 Rxc4 27.Rxd6 Rc3 28.Rd7 R8c7 29.Qf3 Qf6 30.R1d4 Qxf3+ 31.Kxf3 Kf8 32.Rxc7 Rxc7 33.Ke2 Rc2+ 34.Rd2 Rc7 35.Rd3 Ke7 36.Kd2 e5 37.Rd5 Ke6 38.e4 Rc4 39.Kd3 Rc1 40.Rc5 Rd1+ 41.Ke3 Rd7 42.f4 exf4+ 43.gxf4 f6 44.f5+ gxf5 45.Rxf5 Rc7 46.Kd4 Rd7+ 47.Ke3 Rc7 48.Kd4 Rd7+ 49.Kc5 Rd3 50.a4 Re3 51.Rxh5 Rxe4 52.Rh7 b6+ 53.Kxb6 Rxb4+ 54.Ka5 Rg4 55.h5 Rh4 56.Rh8 f5 57.h6 Kf7 58.Ra8 Rxh6 59.Rxa6 Rxa6+ 60.Kxa6 f4 61.Kb7 f3 62.a5 f2 63.a6 f1=Q 64.a7 Qf3+ 65.Kb8 Qf4+ 66.Kb7 Qe4+ 67.Kb8 Qe5+ 68.Kb7 Qd5+ 69.Kb8 Qd6+ 70.Kb7 Qd5+ 71.Kb8 Qb5+ 72.Kc7 Qa6 73.Kb8 Qb6+ 74.Ka8 Qd4 75.Kb7 Qd5+ 1/2-1/2
2024.11.18 Copa Revolucion Open 2024
290569 GM Martinez Alcantara, Jose Eduardo (2607) GM Obregon Rivero, J (2486) 1/2-1/2
1.e4 d6 2.d4 Nf6 3.Bd3 e5 4.dxe5 dxe5 5.Nf3 Nbd7 6.O-O Be7 7.Nbd2 c6 8.a4 Qc7 9.b3 O-O 10.Bb2 Re8 11.Qe2 Bf8 12.a5 Rb8 13.c3 b5 14.axb6 axb6 15.b4 b5 16.Nb3 Nb6 17.Bc1 Be6 18.Qc2 Bc4 19.Bxc4 Nxc4 20.Nfd2 Nxd2 21.Bxd2 Nd7 22.Be3 c5 23.bxc5 Nxc5 24.Nxc5 Bxc5 25.Qe2 Bxe3 26.Qxe3 1/2-1/2
2024.11.17 Copa Revolucion Open 2024
290539 GM Obregon Rivero, J (2486) IM Duran Vega, S (2313) 1-0
1.Nf3 c5 2.e4 Nc6 3.c3 e6 4.d4 d5 5.e5 Qb6 6.a3 Bd7 7.b4 cxd4 8.cxd4 Nh6 9.Nc3 a5 10.Na4 Qd8 11.b5 Na7 12.Bg5 Be7 13.Bxe7 Qxe7 14.Nb6 Rb8 15.Qa4 Qd8 16.Nxd7 Kxd7 17.b6+ Nc6 18.Rb1 Nf5 19.Bd3 Nh4 20.Rg1 Nxf3+ 21.gxf3 Qh4 22.Rxg7 Ke7 23.Rg4 Qxh2 24.Qc2 h5 25.Qc5+ Ke8 26.Rg7 Rc8 27.Ke2 Ne7 28.Qxa5 Kf8 29.Rbg1 Rg8 30.Rxg8+ Nxg8 31.Rg3 Ne7 32.Qd2 Qh4 33.Qh6+ Ke8 34.Rg4 Qh1 35.Bb5+ Nc6 36.Rg8+ 1-0
2024.11.17 Copa Revolucion Open 2024
290554 IM Otero Acosta, D (2359) GM Obregon Rivero, J (2486) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.h3 e5 7.d5 a5 8.g4 Na6 9.Be3 Nc5 10.Nd2 Nfd7 11.h4 Bf6 12.g5 Be7 13.Qf3 f6 14.Qg2 fxg5 15.hxg5 a4 16.a3 Rf7 17.O-O-O c6 18.Kb1 Nf8 19.Be2 Rb8 20.Qg3 cxd5 21.cxd5 b5 22.Na2 Na6 23.Nb4 Bb7 24.Rc1 Qa5 25.Nc6 Bxc6 26.Rxc6 Nc5 1/2-1/2
2024.11.16 Copa Revolucion Open 2024
290508 GM Obregon Rivero, J (2486) GM Tari, A (2628) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Be7 5.O-O O-O 6.Re1 d6 7.a4 Na5 8.Ba2 c5 9.Nc3 Nc6 10.Ne2 Bg4 11.Ng3 Nd4 12.c3 Bxf3 13.gxf3 Ne6 14.Kh1 Kh8 15.Rg1 g6 16.Bh6 Re8 17.d4 Bf8 18.Bxf8 Rxf8 19.dxe5 dxe5 20.Bxe6 fxe6 21.Qxd8 Raxd8 22.Rgd1 Kg7 23.Kg2 Kf7 24.Kf1 Ke7 25.Ke2 Rxd1 26.Rxd1 Rd8 1/2-1/2
2024.11.16 Copa Revolucion Open 2024
290524 IM Mihajlov, Seb (2354) GM Obregon Rivero, J (2486) 1/2-1/2
1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Bxf6 7.e3 O-O 8.Rc1 b6 9.Bd3 Bb7 10.cxd5 exd5 11.O-O Nd7 12.b4 a5 13.b5 Re8 14.Qb3 Nf8 15.a4 Qd6 16.Bb1 Rad8 17.Ne2 Ne6 18.h4 h5 19.g3 g6 20.Nf4 Rc8 21.Nd3 Nf8 22.Nf4 Bg7 23.Ba2 Ne6 24.Nxd5 Rcd8 25.e4 Nxd4 26.Nxd4 Bxd4 27.Qf3 Kg7 28.Rfd1 Bc5 29.Nxb6 Bxf2+ 30.Qxf2 Qxb6 31.Qxb6 1/2-1/2
2024.11.15 Copa Revolucion Open 2024
290494 GM Obregon Rivero, J (2486) IM Figueredo Losada, L (2331) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 g6 4.e4 Bg7 5.Be2 O-O 6.Be3 Na6 7.Nf3 e5 8.d5 Ng4 9.Bg5 f6 10.Bh4 Nh6 11.Nd2 Nf7 12.a3 c5 13.O-O Qe8 14.Nb5 f5 15.exf5 gxf5 16.Bh5 Qd7 17.f4 exf4 18.Bxf7+ Rxf7 19.Qc2 Nc7 20.a4 Nxb5 21.axb5 Qc7 22.Bg5 Bd7 23.Bxf4 a6 24.Ra3 Kh8 25.Nf3 Bf6 26.Ng5 Rg7 27.Ne6 Bxe6 28.dxe6 Rag8 29.Rg3 axb5 30.cxb5 c4 31.Qxf5 Bxb2 32.Qd5 Rxg3 33.hxg3 Be5 34.Bxe5+ dxe5 35.Rf7 Qb6+ 36.Kf1 Qe3 37.e7 Qc1+ 38.Ke2 Qc2+ 39.Qd2 Qe4+ 40.Kf2 Qg6 41.Rf8 Qxg3+ 42.Kf1 c3 43.Rxg8+ Kxg8 1-0
2024.11.14 Copa Revolucion Open 2024
290436 GM Obregon Rivero, J (2486) CM Avila Bautista, Roberto Al (2183) 1-0
1.d4 Nf6 2.c4 c5 3.e3 g6 4.Nc3 Bg7 5.Nf3 O-O 6.d5 e6 7.Be2 exd5 8.cxd5 d6 9.Nd2 Na6 10.e4 Nc7 11.O-O Rb8 12.a4 b6 13.Nc4 Ba6 14.f3 Qd7 15.Re1 Bxc4 16.Bxc4 a6 17.Bf1 Rfd8 18.Bg5 Rb7 19.Qd2 b5 20.axb5 axb5 21.b4 cxb4 22.Na2 Na6 23.Nxb4 Nxb4 24.Qxb4 h6 25.Be3 Qe7 26.Ra5 Rdb8 27.Rxb5 Ne8 28.Rxb7 Rxb7 29.Qa4 Nc7 30.Qc6 Rb3 31.Bf2 Rc3 32.Qb7 Qg5 33.Qc8+ Kh7 34.Qd7 Rxf3 35.h4 Qf4 36.gxf3 Be5 37.Qh3 1-0
2024.11.14 Copa Revolucion Open 2024
290463 FM Zacarias Rodriguez, Santiago (2219) GM Obregon Rivero, J (2486) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nab1 Be7 10.Bxf6 Bxf6 11.a4 b4 12.Nd5 O-O 13.Bc4 Bg5 14.O-O Kh8 15.c3 Rb8 16.cxb4 Nxb4 17.Nxb4 Rxb4 18.b3 f5 19.exf5 Bxf5 20.Nc3 a5 21.Qe2 Qe8 22.Rad1 Qg6 23.Rd5 Bd8 24.Kh1 Bb6 25.f3 Bc5 26.Rd2 Rbb8 27.Nb5 Bb4 28.Rdd1 Rbc8 29.Bd3 Bxd3 30.Rxd3 e4 31.fxe4 Qxe4 32.Rdf3 Rxf3 33.Qxf3 d5 34.h3 h6 35.Rd1 Rf8 36.Qg3 Qe2 37.Rxd5 Bd2 38.Rd4 Be3 39.Qd6 Qe1+ 40.Kh2 Bg1+ 0-1
2024.11.13 Copa Revolucion Open 2024
290406 WIM Mendez Tovar, Yessica Yissel (1948) GM Obregon Rivero, J (2486) 0-1
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Be2 Nf6 6.Nc3 Qc7 7.O-O a6 8.Be3 Bb4 9.Nxc6 dxc6 10.Qd3 O-O 11.Rad1 b5 12.a3 Be7 13.Bf3 e5 14.Qe2 a5 15.Ra1 Ba6 16.Qd2 b4 17.Ne2 Rfd8 18.Qc1 bxa3 19.bxa3 Nxe4 20.Bxe4 Bxe2 21.Re1 Bc4 22.Qb2 Rab8 23.Qc3 Bd5 24.Bxd5 Rxd5 25.Rab1 Rxb1 26.Rxb1 h5 27.h3 Qd6 28.a4 e4 29.g3 h4 30.Bf4 Qe6 31.Kg2 Bb4 32.Qc4 hxg3 33.Bxg3 e3 0-1
2024.11.05 Titled Tue 5th Nov Late
305156 GM Obregon Rivero, J (2486) FM Goltsev, Dmitry (2226) 0-1
1.e4 e6 2.d4 d5 3.Nc3 c5 4.exd5 exd5 5.Nf3 Nf6 6.Bb5+ Nc6 7.O-O Be7 8.dxc5 Bxc5 9.Bg5 O-O 10.Ne2 Bg4 11.Bxc6 bxc6 12.Ng3 Qd6 13.Bxf6 Qxf6 14.c3 Rfe8 15.h3 Bd7 16.Qd3 Qf4 17.Nd4 g6 18.Rfe1 Re5 19.Qf3 Qg5 20.Rxe5 Qxe5 21.Qe3 Qf6 22.Qd2 Re8 23.Rd1 Qh4 24.Nf1 Re4 25.Nf3 Qe7 26.Ng3 Re6 27.Nd4 Re5 28.Kh2 Qe8 29.b4 Bb6 30.Qf4 Bc7 31.Qf6 Bd8 32.Qf3 h5 33.Rd2 Bc7 34.Kg1 Re1+ 35.Nf1 Qe5 36.Qg3 Qxg3 37.fxg3 Bxg3 38.Re2 Rxe2 39.Nxe2 Be1 40.Ne3 Bc8 41.Nc2 Bd2 42.Kf2 Kg7 43.Ncd4 Bd7 44.Nb3 Bg5 45.Ned4 Bd8 46.Ke2 Kf6 47.Nc5 Be8 48.Ke3 Ke5 49.a4 Bb6 50.a5 Bxc5 51.bxc5 Bd7 52.Nf3+ Kf5 53.Nd4+ Kg5 54.Kf3 f5 55.Ne2 Kf6 56.h4 g5 57.hxg5+ Kxg5 58.Nf4 h4 59.Nd3 Be8 60.Ne5 Bh5+ 61.Kf2 Be8 62.Nf3+ Kg4 63.Ne5+ Kf4 64.Nd3+ Ke4 65.Nb4 f4 66.Ke2 Bd7 67.Kf2 d4 68.c4 d3 0-1
2024.11.05 Titled Tue 5th Nov Late
304690 GM Sjugirov, S (2649) GM Obregon Rivero, J (2486) 1-0
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 h6 5.Bh4 O-O 6.e3 d6 7.Bc4 g5 8.Bg3 Nh5 9.c3 Nxg3 10.hxg3 e6 11.Qe2 c5 12.O-O-O cxd4 13.exd4 Qa5 14.Kb1 Nc6 15.Bd3 Rd8 16.g4 Bd7 17.Qe4 b5 18.Qh7+ Kf8 19.Rxh6 b4 20.Nc4 Qd5 21.Ne3 Qa5 22.c4 b3 23.a3 Be8 24.Rh5 f6 25.Bg6 Bxg6+ 26.Qxg6 Ne7 27.Qd3 Rac8 28.d5 e5 29.Rh7 Qa6 30.Rdh1 Rc7 31.Nd2 Rdc8 32.Nf5 Nxf5 33.Qxf5 Rxc4 34.Nxc4 Qxc4 35.Rh8+ 1-0
2024.11.05 Titled Tue 5th Nov Late
305210 GM Obregon Rivero, J (2486) FM Yurovskykh, Oleksandr (2328) 1-0
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.Nf3 Nf6 5.Bc4 c6 6.h3 Bf5 7.O-O e6 8.Re1 Nbd7 9.d4 Be7 10.a4 O-O 11.Nh4 Bg6 12.Nxg6 hxg6 13.Bb3 Qc7 14.Qf3 Bd6 15.Bg5 a5 16.Rad1 Rfe8 17.Ne4 Nxe4 18.Rxe4 Be7 19.Bf4 Bd6 20.Bc1 Nf6 21.Rh4 Rad8 22.c3 Be7 23.Re1 Nd5 24.Rhe4 Nf6 25.R4e2 c5 26.dxc5 Bxc5 27.h4 Qb6 28.Ba2 Rd7 29.Bg5 Be7 30.Rxe6 fxe6 31.Rxe6 Qxb2 32.Re2+ Qxa2 33.Rxa2 Red8 34.g3 Kf7 35.Rb2 Rb8 36.Rb5 b6 37.Qc6 Rbd8 38.Rxb6 Rd1+ 39.Kg2 R1d6 40.Qc4+ Rd5 41.Rb5 Ke6 42.Rxa5 1-0
2024.11.05 Titled Tue 5th Nov Late
304193 GM Tang, Andrew (2527) GM Obregon Rivero, J (2486) 0-1
1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 c6 7.Bd3 a5 8.Nge2 Na6 9.O-O Nc7 10.f3 Ne6 11.Bh4 O-O 12.h3 g6 13.Bf2 b5 14.e4 dxe4 15.fxe4 a4 16.Rc1 a3 17.b3 b4 18.Na4 Nh5 19.d5 cxd5 20.exd5 Nef4 21.Nxf4 Nxf4 22.Be4 Ba6 23.Re1 Bd6 24.Nc5 Qg5 25.Kh1 Ne2 26.Rc2 Qf4 27.Bg1 Ng3+ 28.Kh2 Nxe4+ 0-1
2024.11.05 Titled Tue 5th Nov Late
304478 GM Grischuk, Alexander (2689) GM Obregon Rivero, J (2486) 1-0
1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 c5 6.d5 d6 7.Nf3 e6 8.O-O exd5 9.cxd5 Re8 10.Bf4 Nh5 11.Bg5 Qc7 12.Rc1 a6 13.b4 Nd7 14.bxc5 Nxc5 15.Na4 b6 16.Nd4 h6 17.Be3 Rxe3 18.fxe3 Bd7 19.Nxc5 bxc5 20.Qd3 Re8 21.Qxa6 Rxe3 22.Nb5 Bxb5 23.Qxb5 Bd4 24.Kh1 Qe7 25.Bf3 Kg7 26.a4 Qe5 27.Kg2 Nf6 28.Qc4 g5 29.Kh1 g4 30.Bg2 Rxe2 31.Rf4 Rxg2 32.Kxg2 Nxd5 33.Rxg4+ Kf8 34.Qa6 Ne3+ 35.Kf3 Qf5+ 36.Rf4 Qh5+ 37.Ke4 Qd5+ 38.Kd3 Kg7 39.Rxd4 Qxd4+ 40.Ke2 Nd5 41.Qc4 Qe5+ 42.Kf2 Nf6 43.Kg2 Qf5 44.Qf4 Qg6 45.Rf1 Nd5 46.Qf3 Nf6 47.a5 Ne4 48.a6 Nd2 49.Qxf7+ Qxf7 50.Rxf7+ Kxf7 51.a7 Ke6 52.a8=Q d5 53.Qe8+ Kd6 54.Qd8+ Kc6 55.Qa8+ Kd6 56.Qf8+ Ke5 57.Qxc5 Ne4 58.Qe3 d4 59.Qd3 Nc5 60.Qc4 Ne6 61.Kf2 Ng5 62.Ke2 Ne4 63.Qb5+ Ke6 64.Kd3 Nd6 65.Qh5 Nf5 66.g4 Nd6 67.Kxd4 Nf7 68.Qf5+ Ke7 69.h4 Kf8 70.Qf6 Kg8 71.Kd5 h5 72.g5 Nh8 73.g6 1-0
2024.11.05 Titled Tue 5th Nov Late
305038 CM Baskakov, Egor (2215) GM Obregon Rivero, J (2486) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3 g6 7.Nde2 Bg7 8.Bg2 O-O 9.h3 Rb8 10.a4 a6 11.O-O b5 12.axb5 axb5 13.Be3 b4 14.Nd5 Nd7 15.Ra2 b3 16.cxb3 Nc5 17.Nd4 Nxd4 18.Bxd4 Bxd4 19.Qxd4 Nxb3 20.Qc3 Be6 21.Ra7 Re8 22.Nf4 Qb6 23.Nxe6 fxe6 24.Ra2 Nd4 25.Qd3 e5 26.Kh2 Qb3 27.Qxb3+ Rxb3 28.f4 Reb8 29.fxe5 Rxb2 30.Rxb2 Rxb2 31.exd6 exd6 32.h4 Kg7 33.Rd1 Rb4 34.Rd2 Kf6 35.Rf2+ Ke7 36.g4 Nc6 37.g5 Ne5 38.Ra2 Rb7 39.Ra8 Kf7 40.Rd8 Rd7 41.Ra8 Kg7 42.Bh3 Re7 43.Rd8 Nc4 44.Bg2 h6 45.Kg3 hxg5 46.hxg5 Re6 47.Rc8 Ne5 48.Rc7+ Kf8 49.Kf4 Re7 50.Rc8+ Kg7 51.Ke3 Nf7 52.Rc6 Kf8 53.Kd4 Ra7 54.Ke3 Ra5 55.Bf1 Rxg5 56.Kf4 Rc5 57.Rxc5 dxc5 58.e5 Ke7 59.Bc4 Nd8 60.Bd5 Ne6+ 61.Kg4 Nc7 62.Bc4 Na8 63.Kg5 Nb6 64.Bb5 Nd7 65.Kf4 Nf8 66.Kg5 Nd7 67.Kf4 Ke6 68.Bc4+ Ke7 69.Bb5 1/2-1/2
2024.11.05 Titled Tue 5th Nov Late
304545 GM Obregon Rivero, J (2486) FM Bobkov, Vadim (2253) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 Nc6 6.Bc4 e6 7.O-O Nf6 8.Qe2 Be7 9.Rd1 e5 10.Be3 O-O 11.Rac1 Bg4 12.h3 Bxf3 13.Qxf3 Rc8 14.a3 a6 15.Ba2 b5 16.b4 Qd7 17.g4 h6 18.Kh2 Rfd8 19.Kh1 Rf8 20.g5 hxg5 21.Bxg5 Nd4 22.Qg2 Nh5 23.Be3 Bf6 24.Rg1 Kh7 25.Nd5 Rxc1 26.Rxc1 Rc8 27.Rg1 Qd8 28.Qg4 g6 29.Nb6 Rc7 30.Bxf7 Rb7 31.Qxg6+ Kh8 32.Qxh5# 1-0
2024.11.05 Titled Tue 5th Nov Late
304035 GM Obregon Rivero, J (2486) FM Kovalevsky, Stanislav (2114) 1-0
1.e4 c6 2.d4 d5 3.e5 c5 4.dxc5 e6 5.Qh5 Bxc5 6.Nf3 Ne7 7.Bd3 Nbc6 8.O-O g6 9.Qh6 Qc7 10.Bf4 Bd7 11.Nc3 Nb4 12.a3 Nxd3 13.cxd3 Nf5 14.Qh3 Qb6 15.b4 Bd4 16.Rac1 Rc8 17.Ne2 Rxc1 18.Bxc1 Bb5 19.Rd1 Bxf2+ 20.Kh1 Be3 21.g4 Ne7 22.Qh4 Bxc1 23.Rxc1 Qe3 24.Qf6 O-O 25.Re1 Bxd3 26.Neg1 Qf2 27.Qxe7 Be4 28.Rxe4 dxe4 29.Ng5 e3 30.Qc5 Rd8 31.Ne4 1-0
2024.11.05 Titled Tue 5th Nov Late
303542 GM Obregon Rivero, J (2486) CM Flynn, Jacob (2161) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 b5 6.Bb3 Be7 7.O-O d6 8.a3 O-O 9.h3 Na5 10.Ba2 c5 11.Nc3 Be6 12.Bg5 Bxa2 13.Rxa2 Nc6 14.Bxf6 Bxf6 15.Nd5 g6 16.a4 Bg7 17.axb5 axb5 18.Qa1 f5 19.Ra6 Rxa6 20.Qxa6 fxe4 21.dxe4 Ne7 22.Nxe7+ Qxe7 23.Qxb5 h5 24.Qb3+ Kh7 25.Rd1 Bh6 26.Qd3 Rf6 27.b3 Bf4 28.Nd2 g5 29.Nc4 g4 30.hxg4 hxg4 31.g3 Bg5 32.Nxd6 Rh6 33.Nf5 1-0
2024.11.05 Titled Tue 5th Nov Late
304847 GM Obregon Rivero, J (2486) IM Ambartsumova, K (2405) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c4 g6 6.h3 Bg7 7.Nc3 O-O 8.Bxc6 bxc6 9.Bg5 Qe8 10.Qd2 Nh5 11.Bh6 Bxh6 12.Qxh6 f6 13.g3 Qe7 14.O-O-O Be6 15.Qe3 a5 16.Ne2 d5 17.g4 Ng7 18.exd5 cxd5 19.d4 e4 20.Nd2 Rfb8 21.cxd5 Bxd5 22.Nc3 Qb4 23.b3 Qa3+ 24.Kc2 c6 25.Ndxe4 Kh8 26.Nxf6 Bxb3+ 27.axb3 Qxb3+ 28.Kd3 Rf8 29.Nd7 Rfe8 30.Ne5 c5 31.Rb1 cxd4 32.Nxg6+ hxg6 33.Qh6+ Kg8 34.Rxb3 dxc3 35.Rb7 Rad8+ 36.Kxc3 Re2 37.Qxg7# 1-0
2024.11.05 Titled Tue 5th Nov Late
303834 IM Abrashkin, B (2407) GM Obregon Rivero, J (2486) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.exd5 Bf5 10.Nh4 Bd7 11.h3 Re8 12.Bd3 Nxd5 13.Nxd5 Qxh4 14.Nc7 Nc6 15.Nxa8 Rxa8 16.Re1 Bd4 17.Be3 Bxb2 18.Rb1 Bc3 19.Rxb7 Ne5 20.Rxd7 Nxd7 21.Re2 Bd4 22.Bxd4 Qxd4 23.Rd2 Qc3 24.Bf1 Ne5 25.Rxd6 Rb8 26.Rd8+ Rxd8 27.Qxd8+ Kg7 28.Qc7 Qd4 29.Qxa7 Nxc4 30.Qa4 Nb2 31.Qc2 h5 32.h4 Na4 33.g3 Nc3 34.a3 Ne4 35.Kg2 Nd6 36.Qd3 Qxd3 37.Bxd3 c4 38.Bc2 Kf6 39.Kf3 Ke5 40.Ke3 Kd5 41.a4 Nb7 42.Be4+ Kc5 43.Bxb7 Kb4 44.Bc6 c3 45.Kd3 Kb3 46.Bd5+ Kb2 47.Kd4 c2 0-1
2024.08.27 Titled Tue 27th Aug Late
393997 GM Obregon Rivero, J (2487) Gerbelli Neto, E (2114) 1-0
1.e4 e5 2.Bc4 Nf6 3.d3 Nc6 4.Nc3 Bc5 5.f4 d6 6.Nf3 Na5 7.Bb3 Nxb3 8.axb3 exf4 9.Bxf4 Bg4 10.h3 Bh5 11.g4 Bg6 12.Bg5 c6 13.Qe2 O-O 14.O-O-O Qa5 15.Bxf6 gxf6 16.h4 h6 17.Kb1 Bb4 18.Qd2 Kh7 19.Rdg1 h5 20.Nd4 Bxc3 21.bxc3 Rg8 22.b4 Qe5 23.Rf1 Rh8 24.Nf5 Kg8 25.Rhg1 Kf8 26.Ne3 a5 27.Nc4 Qe6 28.Nxa5 b6 29.Nb3 c5 30.g5 fxg5 31.Rxg5 cxb4 32.cxb4 Rd8 33.Qc3 Rg8 34.Qd4 d5 35.e5 Rc8 36.Rf6 Qh3 37.Qxb6 Bxd3 38.Qd6+ 1-0
2024.08.27 Titled Tue 27th Aug Early
390702 GM Obregon Rivero, J (2487) IM Santos Flores, A (2168) 0-1
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3 7.bxc3 Ne4 8.Qg4 Kf8 9.Bd3 Nxd2 10.Kxd2 c5 11.h4 Nc6 12.Rh3 c4 13.Be2 Bd7 14.Rg3 Rg8 15.Nh3 b5 16.a3 a5 17.Nf4 Ne7 18.Rf3 Nf5 19.h5 b4 20.Ng6+ fxg6 21.Qxg6 bxc3+ 22.Kxc3 Qg5 23.Qxg5 hxg5 24.g4 Ke7 25.gxf5 exf5 26.Rg3 g4 27.Rgg1 Rh8 28.f3 Rxh5 29.fxg4 fxg4 30.Bxg4 Bxg4 31.Rxg4 Rh3+ 32.Kd2 Rh2+ 33.Ke3 Rh3+ 34.Kf2 Rf8+ 35.Kg2 Rc3 36.Rxg7+ Rf7 37.Rxf7+ Kxf7 38.Ra2 Ke6 39.Kf2 Kf5 40.Ke2 Rh3 41.Rb2 Rxa3 42.Rb5 Ke4 43.e6 Kxd4 44.Kd2 Rh3 45.e7 Rh2+ 46.Kc1 Re2 47.Rb7 Kc3 48.Kb1 d4 49.Rc7 a4 50.Ra7 Re1+ 51.Ka2 Kxc2 52.Rxa4 Kd3 53.Ra7 c3 54.Rc7 Kd2 55.Kb3 Re6 56.Rd7 d3 57.Kc4 Re4+ 58.Kd5 Rxe7 59.Rxe7 c2 0-1
2024.08.27 Titled Tue 27th Aug Late
393287 GM Obregon Rivero, J (2487) CM Guzman Lozano, C (1868) 1-0
1.e4 c5 2.d4 cxd4 3.c3 d5 4.exd5 Nf6 5.cxd4 Nxd5 6.Nc3 Nxc3 7.bxc3 g6 8.h4 h5 9.Nf3 Bg7 10.Bc4 Nd7 11.Qc2 Qc7 12.Bxf7+ Kxf7 13.Ng5+ Ke8 14.Qxg6+ Kd8 15.Ne6# 1-0
2024.08.27 Titled Tue 27th Aug Late
393832 GM Obregon Rivero, J (2487) FM Vila Dupla, A (2042) 1-0
1.e4 c5 2.d4 cxd4 3.c3 d3 4.Bxd3 Nc6 5.Nf3 d6 6.O-O Nf6 7.Re1 e6 8.h3 Be7 9.c4 O-O 10.Nc3 a6 11.b3 Qc7 12.Bb2 Bd7 13.Rc1 Qa5 14.Qd2 Qh5 15.Qe3 Qc5 16.Qf4 Qh5 17.Be2 Qc5 18.Na4 Qa5 19.Bc3 Qc7 20.Qe3 Rad8 21.Nb6 Ne5 22.Nxd7 Nfxd7 23.Nd4 Nc6 24.Nf3 Nde5 25.Nd2 Bf6 26.Nf1 Ng6 27.Bd2 Nd4 28.Bd1 h6 29.g3 Nc6 30.Kg2 Bd4 31.Qe2 e5 32.Ne3 Nce7 33.Bc2 Qc5 34.h4 Qa3 35.Bb1 Rb8 36.h5 Nh8 37.Qg4 Kh7 38.Nd5 Nxd5 39.exd5+ 1-0
2024.08.27 Titled Tue 27th Aug Late
393603 FM Brancaleoni, M (2180) GM Obregon Rivero, J (2487) 0-1
1.Nf3 Nf6 2.c4 g6 3.b3 Bg7 4.Bb2 O-O 5.g3 c5 6.Bg2 Nc6 7.O-O d6 8.d4 cxd4 9.Nxd4 Qb6 10.Nc2 Be6 11.Nc3 Bxc4 12.Na4 Qa6 13.bxc4 Qxa4 14.Ne3 Qxd1 15.Rfxd1 Rac8 16.Bh3 Rb8 17.Rac1 b6 18.Nd5 Ne4 19.Bxg7 Kxg7 20.Bd7 Na5 21.Bb5 Nc5 22.Nxe7 a6 23.Bc6 Kf6 24.Nd5+ Kg7 25.Ne7 Kf6 26.Nd5+ Ke5 27.f4+ Ke6 28.Nc7+ Ke7 29.Bf3 Rfd8 30.e4 h6 31.Kf2 Rdc8 32.Nd5+ Kf8 33.Ne3 Ke7 34.Nd5+ Kf8 35.Ne3 Rd8 36.Rd2 b5 37.cxb5 axb5 38.Rcd1 Nab7 39.Nd5 Ra8 40.h4 Ra4 41.Nb6 Nxe4+ 42.Bxe4 Rxe4 43.Nd5 b4 44.Rc1 Nc5 45.Kf3 Rde8 46.Rcd1 b3 47.axb3 Nxb3 48.Rd3 Nc5 49.R3d2 Ra4 50.Nc3 Ra3 51.Rc2 Na4 0-1
2024.08.27 Titled Tue 27th Aug Early
390277 CM Mazurkiewicz, M (2224) GM Obregon Rivero, J (2487) 0-1
1.e4 c5 2.Nf3 d6 3.g3 Nf6 4.d3 Nc6 5.Bg2 e6 6.O-O Be7 7.c3 O-O 8.Re1 b6 9.d4 Bb7 10.d5 exd5 11.exd5 Nb8 12.c4 Nbd7 13.Nc3 Re8 14.Bf4 a6 15.a4 Bf8 16.Qd3 Rxe1+ 17.Rxe1 Qc7 18.Ng5 h6 19.Nge4 Re8 20.Nxf6+ Nxf6 21.Ne4 Nxe4 22.Rxe4 Rxe4 23.Qxe4 Qd7 24.b3 b5 25.a5 b4 26.h4 Bc8 27.Kh2 Qe7 28.h5 Bg4 29.Bf3 Qxe4 30.Bxe4 Bd1 31.Bd3 Bxb3 32.Kg2 Be7 33.Kf3 Ba2 34.Ke2 b3 35.Bc1 Bf6 36.Bf4 b2 37.Bxd6 Bxc4 0-1
2024.08.27 Titled Tue 27th Aug Late
394151 Martinez, Shawn (1921) GM Obregon Rivero, J (2487) 1-0
1.e4 c5 2.Nc3 e6 3.g3 Nc6 4.Bg2 g6 5.Nge2 Bg7 6.O-O Nge7 7.d3 d6 8.Be3 Nd4 9.Qc1 O-O 10.Bh6 Bxh6 11.Qxh6 Nxc2 12.Rac1 Nb4 13.Rcd1 e5 14.f4 f6 15.f5 gxf5 16.Bh3 fxe4 17.Nxe4 Bxh3 18.Nxf6+ Rxf6 19.Rxf6 Bf5 20.Rf1 Bg6 21.h4 Nbd5 22.Rf8+ Qxf8 23.Rxf8+ Rxf8 24.Nc3 Nxc3 25.bxc3 Nf5 26.Qg5 Ng7 27.Qe7 Bxd3 28.Qxd6 e4 29.Qxc5 Nf5 30.g4 Nxh4 31.Qg5+ Ng6 32.a4 a6 33.a5 Rf7 34.Qd8+ Nf8 35.Qg5+ Ng6 36.Qd8+ Kg7 37.Qd4+ Kh6 38.Kg2 Nf4+ 39.Kh2 Kg5 40.Qd8+ Rf6 41.Qg8+ Rg6 42.Qc8 1-0
2024.08.27 Titled Tue 27th Aug Early
389834 Ocido, Michael (2102) GM Obregon Rivero, J (2487) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.f3 O-O 5.e4 d6 6.Be3 c5 7.Nge2 cxd4 8.Nxd4 Nc6 9.Qd2 Nxd4 10.Bxd4 a5 11.Be2 Bd7 12.b3 Bc6 13.O-O Nd7 14.Be3 Nc5 15.Rab1 Qb6 16.Kh1 Qb4 17.Rfc1 Rfc8 18.Bd4 Bxd4 19.Qxd4 Ne6 20.Qe3 Qc5 21.Qd2 Qd4 22.Qxd4 Nxd4 23.Bd3 Ne6 24.Kg1 Kg7 25.Kf2 h5 26.Ke3 h4 27.a3 g5 28.g3 hxg3 29.hxg3 Rh8 30.Rh1 Rxh1 31.Rxh1 Nc5 32.Bc2 b6 33.f4 gxf4+ 34.gxf4 e6 35.Rd1 Nb7 36.Rg1+ Kf6 37.e5+ dxe5 38.Ne4+ Bxe4 39.Bxe4 Rb8 40.Bxb7 Rxb7 41.Rf1 exf4+ 42.Rxf4+ Ke7 43.b4 axb4 44.axb4 f5 45.Rh4 Kf6 46.Rh8 Ke5 47.Rc8 Kd6 48.b5 Rc7 49.Rb8 Kc5 50.Kd3 f4 51.Re8 Rd7+ 52.Kc3 Rf7 53.Rxe6 Rc7 54.Rf6 Rc8 55.Rxf4 Kd6 56.Rf6+ Kc5 57.Rh6 Rc7 58.Rg6 Rc8 59.Kb3 Rc7 60.Rg5+ Kd4 61.Rg6 Rb7 62.Rg4+ Ke5 63.Rg5+ Kd6 64.Rg6+ Ke5 65.Rc6 Kd4 66.Kb4 Rb8 67.Rd6+ Ke5 68.Rd1 Ke6 69.c5 bxc5+ 70.Kxc5 Ke7 71.b6 Rc8+ 72.Kb5 Rc2 73.b7 Rb2+ 74.Kc6 Rc2+ 75.Kb6 Rb2+ 76.Kc7 Rc2+ 77.Kb8 Ra2 78.Rd4 Rc2 79.Ka7 Ra2+ 80.Kb6 Rb2+ 81.Kc6 Rc2+ 82.Kb5 Rb2+ 83.Rb4 1-0
2024.08.27 Titled Tue 27th Aug Late
393186 FM Subervi, J (2044) GM Obregon Rivero, J (2487) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Nf6 5.Nc3 g6 6.O-O Bg7 7.d3 O-O 8.h3 Nc6 9.a3 a6 10.Ba4 h6 11.Rb1 Nd4 12.Nxd4 cxd4 13.Ne2 b5 14.Bb3 e5 15.f4 bxc4 16.Bxc4 Qb6 17.fxe5 dxe5 18.b3 Bb5 19.Bd2 Bxc4 20.bxc4 Qc6 21.Kh1 Nd7 22.Ng3 Rfb8 23.Qf3 Qe6 24.h4 h5 25.Kh2 Bf8 26.Bb4 a5 27.Bd2 Bxa3 28.Rxb8+ Nxb8 29.Bg5 Nd7 30.Rb1 Bb4 31.Bc1 Be7 32.Bg5 Bxg5 33.hxg5 a4 34.Ra1 a3 35.Qf2 Qg4 36.Ne2 Qxg5 37.Ng1 Nc5 38.Nf3 Qf4+ 39.Kg1 Nxd3 40.Qc2 Nc5 41.Qb1 Qxe4 0-1
2024.08.27 Titled Tue 27th Aug Early
389868 GM Obregon Rivero, J (2487) WFM Sala, Giulia (2121) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 g6 6.Bc4 Bg7 7.e5 e6 8.Bf4 Nh6 9.O-O O-O 10.Qd2 Nf5 11.Rad1 d5 12.exd6 e5 13.Bg5 Qd7 14.Ne4 Kh8 15.Nc5 Qe8 16.d7 Bxd7 17.Qxd7 Qxd7 18.Nxd7 e4 19.Nxf8 exf3 20.Nd7 fxg2 21.Kxg2 Re8 22.Bxf7 Re4 23.f3 Rb4 24.Bb3 h6 25.Bd2 1-0
2024.08.27 Titled Tue 27th Aug Late
393725 FM Urbani, Gabriel (2070) GM Obregon Rivero, J (2487) 1-0
1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Be7 7.Bd3 O-O 8.Be3 Nd7 9.Qd2 Nf6 10.O-O-O c5 11.h4 Qa5 12.Kb1 b5 13.c4 b4 14.h5 Rb8 15.Bf4 Rb6 16.a3 Qa4 17.Nh4 bxa3 18.b3 Ne4 19.Bxe4 Rxb3+ 20.cxb3 Qxb3+ 21.Kc1 Bf6 22.Qc2 Bb2+ 23.Kd2 Qb4+ 24.Ke2 Ba6 25.Bxh7+ Kh8 26.Bd3 Re8+ 27.Kf1 a2 28.h6 g5 29.Bxg5 a1=Q 30.Rxa1 Bxa1 31.g3 Bb7 32.f3 1-0
2024.08.21 Abu Dhabi Masters Online
404526 WIM Haussernot, C (2108) GM Obregon Rivero, J (2487) 0-1
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Bd3 g6 5.Bc2 Bg7 6.O-O O-O 7.h3 Nc6 8.Re1 b6 9.d4 Bb7 10.d5 Ne5 11.Nxe5 dxe5 12.Nd2 Ne8 13.Nc4 Nd6 14.Ne3 c4 15.a4 a5 16.Ng4 h5 17.Ne3 Rc8 18.Qe2 Qd7 19.g4 hxg4 20.Nxg4 e6 21.Bh6 f6 22.dxe6 Qxe6 23.Qe3 Nf7 24.Bxg7 Kxg7 25.Kg2 Rh8 26.Rh1 f5 27.Nh2 f4 28.Qf3 Ng5 29.Qg4 Qxg4+ 30.Nxg4 Nxe4 31.f3 Nd2 32.Nxe5 Rce8 33.Rhe1 Kf6 34.Red1 Nxf3 35.Ng4+ Kg5 36.Kf2 Rxh3 37.Rd6 Kxg4 38.Rxg6+ Ng5 39.Rg1+ Rg3 40.Rxb6 Nh3+ 41.Kf1 Rxg1# 0-1
2024.08.21 Abu Dhabi Masters Online
404019 GM Obregon Rivero, J (2487) IM Pak, Y (2317) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4 7.O-O Nge7 8.Nb5 O-O 9.Nd6 a6 10.a3 Bxd6 11.Qxd6 b5 12.Ba2 Ng6 13.Rd1 Qe7 14.Qg3 Bb7 15.h4 h5 16.Ng5 Rad8 17.Qf3 f6 18.Qxh5 fxg5 19.Qxg6 Qf6 20.Qxf6 gxf6 21.hxg5 fxg5 22.Bxg5 Rde8 23.Rxd7 Rf7 24.Rxf7 Kxf7 25.Rd1 Nb8 26.f3 Kg6 27.Bf4 e5 28.Rd6+ Kg7 29.Bh6+ Kh7 30.Be3 Bc8 31.Ba7 Nd7 32.Bf7 Re7 33.Bg6+ Kg7 34.Bf5 Nf6 35.Be3 Bxf5 36.exf5 e4 37.Bg5 Rf7 38.Bxf6+ Rxf6 39.Rxf6 Kxf6 40.fxe4 1-0
2024.08.21 Abu Dhabi Masters Online
404328 GM Le Tuan Minh (2564) GM Obregon Rivero, J (2487) 1-0
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nbd2 h6 5.Bxf6 Bxf6 6.c3 d5 7.e4 e6 8.Bd3 Bg7 9.O-O O-O 10.Re1 Nd7 11.e5 c5 12.h4 b5 13.Nf1 b4 14.h5 g5 15.N1h2 bxc3 16.bxc3 Qa5 17.Rc1 cxd4 18.cxd4 Ba6 19.Bb1 Rfc8 20.Rxc8+ Rxc8 21.Ng4 Qa3 22.Kh2 Rc3 23.Re3 Rxe3 24.Nxe3 Nb6 25.Qc2 Kf8 26.Ng4 Ke8 27.Qc7 Qe7 28.Qb8+ Bc8 29.Bd3 Kd8 30.Bb5 Qc7 31.Qxc7+ Kxc7 32.Be8 a5 33.Bxf7 Na4 34.Nf6 Kd8 35.Ne8 Bf8 36.Nd6 Nc3 37.Nxc8 Kxc8 38.Bxe6+ Kc7 39.a4 Nxa4 40.Bxd5 Nc3 41.Bc4 a4 42.Ne1 a3 43.Nc2 Ne4 44.f3 Nd2 45.Ba2 1-0
2024.08.21 Abu Dhabi Masters Online
404897 IM Maksimovic, Bojan (2499) GM Obregon Rivero, J (2487) 1-0
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.e3 f5 5.g3 h5 6.Bg2 h4 7.Nf3 hxg3 8.hxg3 Rxh1+ 9.Bxh1 d6 10.c4 Bg7 11.Nc3 Nd7 12.Qb3 Nf6 13.Nd2 c6 14.O-O-O Qb6 15.Qc2 Bd7 16.c5 dxc5 17.Nc4 Qc7 18.dxc5 Be6 19.Nd6+ Kf8 20.Kb1 Rd8 21.Ne2 Nd5 22.Nd4 Bxd4 23.exd4 Nb4 24.Qd2 Bxa2+ 25.Kc1 a5 26.Qh6+ Kg8 27.Bf3 Qe7 28.Rh1 Qf6 29.Qh7+ Kf8 30.Qh8+ Ke7 31.Nc8+ Rxc8 32.Qxc8 Qxd4 33.Qc7+ Kf6 34.Qd6+ Qxd6 35.cxd6 Ke6 36.Rd1 Bd5 37.Bxd5+ Nxd5 38.Kd2 Kxd6 39.Ra1 b6 40.Rh1 a4 41.Kd3 b5 42.Rh8 Nb6 43.Rf8 Ke6 44.Rb8 Nc4 45.Kc3 Kd6 46.Rf8 Ke7 47.Rc8 Kd7 48.Rf8 Nd6 49.Kd4 Ke7 50.Ra8 Ne4 51.Ra7+ Ke6 52.Rc7 c5+ 53.Ke3 f6 54.g4 Kd6 55.Rg7 b4 56.Rxg6 a3 57.bxa3 bxa3 58.gxf5 a2 59.Rg1 Nc3 60.Ra1 Ke5 61.Kd3 Nd5 62.Kc4 Ne7 63.Rxa2 Nxf5 64.Rd2 Nd6+ 65.Kd3 c4+ 66.Ke3 Nf5+ 67.Kf3 Nd4+ 68.Ke3 Nf5+ 69.Ke2 Nd4+ 70.Kd1 c3 71.Rd3 c2+ 72.Kd2 Ke4 73.Re3+ Kd5 74.Kc1 Kc4 75.Re8 f5 76.Re3 Kd5 77.Rd3 Kc4 78.Rh3 f4 79.Ra3 f3 80.Re3 Kd5 81.Kd2 Kc4 82.Rc3+ Kd5 83.Kd3 Ne6 84.Rxc2 Ke5 85.Ke3 Kf5 86.Rd2 Ng5 87.Rd5+ Kg4 88.Ra5 Kh4 89.Ra4+ Kh5 90.Ra5 Kg4 91.Rb5 Nh3 92.Rb4+ Kf5 93.Kxf3 Ng5+ 94.Ke3 Ne6 95.Rb5+ Kf6 96.f4 Nc7 97.Ra5 Ne6 98.Ke4 Ng7 99.Ra6+ Kf7 100.Ke5 Nh5 101.Ra7+ Ke8 102.f5 Ng3 103.Ra2 Nf1 104.Ke6 1-0
2024.08.21 Abu Dhabi Masters Online
404662 GM Obregon Rivero, J (2487) FM Karamsetty, J (2244) 1-0
1.Nf3 g6 2.g3 Bg7 3.Bg2 d6 4.c4 Nf6 5.Nc3 O-O 6.d3 e5 7.O-O Re8 8.Rb1 a5 9.e4 Nc6 10.h3 Nd4 11.Nxd4 exd4 12.Ne2 Nd7 13.b3 c5 14.a3 Ne5 15.b4 axb4 16.axb4 Nc6 17.bxc5 dxc5 18.Nf4 Ra2 19.Nd5 Qa5 20.Rb5 Qa4 21.Qxa4 Rxa4 22.Rxc5 Ne5 23.Rxc8 Rxc8 24.Ne7+ Kf8 25.Nxc8 Nxd3 26.Nd6 Be5 27.Nxb7 Rxc4 28.Ba3+ Kg7 29.Bd6 Bf6 30.f4 Kg8 31.e5 Bg7 32.Ra1 h5 33.Bf1 Rc3 34.Bxd3 Rxd3 35.Kg2 Rd2+ 36.Kf3 Rd3+ 37.Ke4 Rxg3 38.Kxd4 Rxh3 39.Ra8+ Kh7 40.Nd8 Rh4 41.Ke3 Bh6 42.e6 fxe6 43.Ra7+ Kg8 44.Nf7 Bg7 45.Ng5 Bf6 46.Ra8+ Kg7 47.Bf8+ Kg8 48.Bh6+ 1-0
2024.08.21 Abu Dhabi Masters Online
404163 FM Romero Pallares, Daniel (2272) GM Obregon Rivero, J (2487) 0-1
1.d4 Nf6 2.Bf4 g6 3.Nc3 d5 4.e3 a6 5.h4 c5 6.dxc5 Qa5 7.Be5 Bg7 8.h5 Nc6 9.Bxf6 Bxf6 10.Ne2 e6 11.hxg6 hxg6 12.Rxh8+ Bxh8 13.Qd2 Qxc5 14.O-O-O Bd7 15.Nd4 Nxd4 16.exd4 Qd6 17.f4 O-O-O 18.g3 Bf6 19.Bg2 Rh8 20.Ne2 Kb8 21.Ng1 g5 22.Nf3 gxf4 23.gxf4 Rg8 24.Ne5 Be8 25.Bf3 Bh4 26.c3 Bg3 27.Rf1 f6 28.Nd3 Bb5 29.Be2 Bxd3 30.Bxd3 Rg4 31.f5 Bf4 32.Rxf4 Qxf4 33.fxe6 Kc7 34.Kc2 Qxd2+ 35.Kxd2 Rg2+ 36.Kc1 Kd6 37.Bf5 Rf2 38.Bh3 f5 39.b3 Kxe6 40.c4 Rxa2 0-1
2024.08.21 Abu Dhabi Masters Online
404425 GM Obregon Rivero, J (2487) CM Ismagilov, Damir (2174) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 a6 6.Bc4 Nc6 7.O-O Nge7 8.Bg5 h6 9.Bh4 g5 10.Bg3 Ng6 11.Qe2 g4 12.Nd2 h5 13.f4 b5 14.Bb3 Nd4 15.Qd3 Bc5 16.Kh1 h4 17.Be1 h3 18.Bg3 Bb7 19.gxh3 Rxh3 20.Rac1 Qb6 21.Ne2 Nf5 22.Rfd1 Nxf4 23.Nxf4 Nxg3+ 24.Kg2 Nxe4 25.Qxe4 Bxe4+ 26.Nxe4 Be7 27.Nxh3 gxh3+ 28.Kxh3 f5 29.Ng3 f4 30.Nf1 Qf2 31.Rd3 Kf7 32.Rxd7 Qf3+ 0-1
2024.08.21 Abu Dhabi Masters Online
404945 GM Obregon Rivero, J (2487) FM Hayrapetyan, Edgar (2216) 0-1
1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 c5 5.cxd5 exd5 6.O-O Nc6 7.d4 c4 8.Nc3 Be7 9.b3 cxb3 10.Qxb3 O-O 11.Bg5 Na5 12.Qc2 h6 13.Bxf6 Bxf6 14.e3 Be6 15.Qd3 Rc8 16.Rfc1 Nc4 17.Nd2 Qa5 18.Nb3 Qd8 19.Nc5 b6 20.Nxe6 fxe6 21.Qg6 Nd6 22.Ne2 Qe8 23.Qd3 Nc4 24.Nf4 Qf7 25.h4 g5 26.hxg5 hxg5 27.Ne2 Kg7 28.Rf1 Rh8 29.g4 Rh4 30.f3 Rch8 31.Ng3 Qc7 32.Kf2 Rh2 33.Nh5+ Kf7 34.Rh1 Rxh1 35.Rxh1 Nb2 36.Qd2 Nc4 37.Qc2 Bd8 38.Bf1 b5 39.Bd3 Ke7 40.a4 b4 41.Rc1 Qh2+ 42.Ke1 Qg1+ 43.Bf1 Qxe3+ 44.Be2 b3 45.Qc3 Ba5 0-1
2024.08.21 Abu Dhabi Masters Online
404716 GM Dai, Changren (2532) GM Obregon Rivero, J (2487) 0-1
1.b3 Nf6 2.Bb2 g6 3.e4 d6 4.Nf3 Bg7 5.d3 O-O 6.Nbd2 e5 7.Be2 c6 8.Nc4 Qc7 9.Qd2 a5 10.a4 Nbd7 11.h3 b6 12.g4 Nc5 13.Rg1 Re8 14.Kd1 Ba6 15.Kc1 Nfd7 16.Ne3 Ne6 17.Kb1 Nf4 18.h4 d5 19.Bf1 d4 20.Ng2 Nxg2 21.Bxg2 b5 22.h5 bxa4 23.Rxa4 Bb5 24.Ra3 a4 25.hxg6 hxg6 26.Ng5 axb3 27.Rxb3 Ba4 28.Ra3 Reb8 29.Ka1 Bf8 30.Ra2 Qb7 31.c4 Bb3 32.Rxa8 Qxa8+ 33.Kb1 Qa2+ 34.Kc1 Ba3 0-1
2024.08.21 Abu Dhabi Masters Online
404986 IM Maltsevskaya, Aleksandra (2404) GM Obregon Rivero, J (2487) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.h4 h6 11.Be3 h5 12.Be2 Ne5 13.Bg5 Qc7 14.g4 b5 15.gxh5 b4 16.Nb1 Nc4 17.Bxc4 Qxc4 18.h6 gxh6 19.Bxh6 Qxa2 20.Bg7 Rg8 21.Rhg1 Nh5 22.Bh6 Rh8 23.Bg5 Qc4 24.Bxe7 Kxe7 25.Nf5+ Kd8 26.Nxd6 Qc6 27.Nxf7+ Kc7 28.Nxh8 Rxh8 29.Qxb4 Kc8 30.Rg5 1-0
2024.08.13 Titled Tue 13th Aug Late
416527 GM Kovalev, Vl (2539) GM Obregon Rivero, J (2487) 1/2-1/2
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Bd6 6.O-O O-O 7.Nc3 Nxc3 8.bxc3 Nd7 9.Re1 Nf6 10.Bg5 h6 11.Bh4 c5 12.Qf3 c4 13.Bf5 Be6 14.Ng4 Be7 15.Bxf6 Bxf6 16.Bxe6 fxe6 17.Qg3 Bh4 18.Qh3 h5 19.g3 hxg4 20.Qxh4 Qxh4 21.gxh4 Kf7 22.Kg2 Rh8 23.Kg3 Rh6 24.Re5 Rah8 25.Rae1 Rxh4 26.Rxe6 Rh3+ 27.Kxg4 R8h4+ 28.Kg5 Rh5+ 29.Kg4 R3h4+ 30.Kg3 Rxh2 31.Re7+ Kg8 32.Rxb7 R5h3+ 33.Kg4 Rxc3 34.Re5 Rg2+ 35.Kf5 Rxf2+ 36.Ke6 Rcxc2 37.Kxd5 c3 38.Ree7 Rg2 39.Rec7 Rg5+ 40.Ke4 Re2+ 41.Kd3 Rxa2 42.Kxc3 a5 43.Kd3 Rg3+ 44.Ke4 Re2+ 45.Kf4 Rg1 46.d5 Rf1+ 47.Kg3 Rg1+ 48.Kf3 Rd2 49.Ke4 Rg5 50.d6 Rxd6 51.Ra7 a4 52.Kf4 Rh5 53.Kg4 Rhd5 54.Rxg7+ Kf8 55.Raf7+ Ke8 56.Re7+ Kd8 57.Ra7 Rd4+ 58.Kf3 Rd7 59.Rgxd7+ Rxd7 60.Rxa4 Ke7 61.Re4+ Kf6 62.Ke3 Ra7 63.Rd4 Ke5 64.Re4+ Kf5 65.Rd4 Ra3+ 66.Rd3 Ra6 67.Rd4 Ra1 68.Rf4+ Ke5 69.Re4+ Kd5 70.Rd4+ Kc5 71.Rd2 Re1+ 72.Kd3 Rh1 73.Kc2 Kc4 74.Rf2 Rh4 75.Kd2 1/2-1/2
2024.08.13 Titled Tue 13th Aug Late
416813 GM Troff, Kayden (2490) GM Obregon Rivero, J (2487) 0-1
1.d4 Nf6 2.Nf3 g6 3.Bg5 Bg7 4.Nc3 h6 5.Bxf6 Bxf6 6.h4 Bg7 7.h5 g5 8.e3 c5 9.Bc4 cxd4 10.exd4 e6 11.Qe2 O-O 12.O-O-O d5 13.Bb3 Nc6 14.Ne5 a6 15.g3 Nxe5 16.dxe5 b5 17.f4 Bb7 18.Ne4 Qe7 19.Nxg5 hxg5 20.h6 Bh8 21.h7+ Kg7 22.Qh5 f5 23.fxg5 Rfc8 24.g4 Kf8 25.Rhf1 Qg7 26.gxf5 Qxe5 27.fxe6+ Ke7 28.Qf7+ Kd6 29.Qd7+ Kc5 30.Qxb7 Qxb2+ 31.Kd2 Qd4+ 32.Ke2 Qe5+ 33.Kf3 Qf5+ 34.Ke3 Qe4+ 35.Kd2 Qd4+ 36.Ke2 Qe5+ 37.Kf3 Rf8+ 38.Kg4 Qxe6+ 39.Kh5 Qh3+ 40.Kg6 Qe6+ 41.Kh5 Qh3+ 42.Kg6 Rg8+ 43.hxg8=Q Rxg8+ 44.Kf7 Qh7+ 45.Ke6 Re8+ 46.Qe7+ Rxe7# 0-1
2024.08.13 Titled Tue 13th Aug Late
416319 GM Obregon Rivero, J (2487) FM Oro, Faustino (2434) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.b3 O-O 6.Bb2 c5 7.e3 Nc6 8.c4 b6 9.Nc3 Bb7 10.cxd5 exd5 11.d4 Re8 12.Rc1 Bf8 13.Na4 Ne4 14.Ba3 cxd4 15.Bxf8 dxe3 16.Ba3 Nxf2 17.Rxf2 exf2+ 18.Kxf2 Qd7 19.Bb2 Rad8 20.Nd4 Ne5 21.h3 Ba6 22.Bf1 Bxf1 23.Qxf1 Qe7 24.Kg2 Qg5 25.Rc2 Qg6 26.Qf5 Nd3 27.Qxg6 hxg6 28.Rd2 Re3 29.Nc2 Re4 30.Nc3 Rde8 31.Nxe4 dxe4 32.Bd4 Rc8 33.Bf2 f5 34.Ne1 Nb4 35.Rd7 Nxa2 36.Bd4 Nc1 37.Kf2 Nxb3 38.Rxg7+ Kf8 39.Be5 Rc5 40.Bb2 Rd5 41.Bc3 Rc5 42.Bf6 Rc6 43.Be5 Re6 44.Bb2 e3+ 45.Ke2 Nc1+ 46.Kd1 Na2 47.Rxa7 e2+ 48.Kd2 Rd6+ 49.Kxe2 Re6+ 50.Kf1 Nb4 51.Ba3 1-0
2024.08.13 Titled Tue 13th Aug Late
417091 GM Zhigalko, S (2572) GM Obregon Rivero, J (2487) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 9.O-O-O Be7 10.Rhe1 Qc7 11.Kb1 h6 12.Bh4 a6 13.Bg3 e5 14.Qd3 b5 15.Bh4 g5 16.Bg3 Rc8 17.Nd2 b4 18.Nd5 Nxd5 19.exd5 Bb5 20.Qf5 Bd7 21.Qd3 f5 22.f3 O-O 23.Rc1 Bb5 24.Qb3 a5 25.c4 bxc3 26.Qxb5 Rb8 27.Qc4 Rxb2+ 28.Ka1 Qb7 29.Qxc3 Rb8 30.Nc4 Rxg2 31.Rb1 Qa8 32.Nxe5 Bf6 33.Qc7 Rf8 34.Qxd6 f4 35.Qe6+ Kh8 36.Rb2 Rxb2 37.Kxb2 fxg3 38.hxg3 Qb8+ 39.Ka1 Bg7 40.f4 gxf4 41.gxf4 Rxf4 42.d6 Qb4 43.Qe8+ Rf8 44.Qg6 Qc3+ 45.Kb1 Rb8# 0-1
2024.08.13 Titled Tue 13th Aug Late
415833 GM Gurevich, D (2352) GM Obregon Rivero, J (2487) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.Kh1 b6 13.a4 Rb8 14.Nc4 Ba6 15.Bg5 h6 16.Bh4 g5 17.Bf2 Qd7 18.Re1 Nh5 19.Bf1 Nf4 20.Ne3 Bxf1 21.Rxf1 a6 22.Nf5 Bf8 23.g3 Ng6 24.f4 b5 25.fxg5 b4 26.Qg4 Ne5 27.Nxh6+ Bxh6 28.Qh5 Bg7 29.Ne2 Qg4 30.Nf4 Qxh5 31.Nxh5 Nd3 32.Nf6+ Bxf6 33.gxf6 Rxe4 34.Bg1 Nxb2 35.Rf5 Rg4 36.Bf2 Nd3 37.Be3 Ne5 38.Bh6 Nxd5 0-1
2024.08.13 Titled Tue 13th Aug Late
415587 GM Obregon Rivero, J (2487) FM Stanojevic, Ilija (2198) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4 7.O-O Nge7 8.Nb5 d5 9.exd5 exd5 10.Bxd5 Nxd5 11.Qxd5 O-O 12.Qh5 a6 13.Nc3 Bxc3 14.bxc3 Qd3 15.Ba3 Re8 16.Rad1 Qg6 17.Qh4 Bg4 18.Qg3 Qh5 19.Rd3 Rad8 20.Nd4 Be2 21.Nxe2 Rxd3 22.Qxd3 Qxe2 23.Qd7 Qe6 24.Qxb7 Ne5 25.h3 Qxa2 26.Qxa6 h6 27.Qb5 Rc8 28.Bb4 Qc2 29.Qxe5 1-0
2024.08.13 Titled Tue 13th Aug Late
416125 GM Obregon Rivero, J (2487) FM Kurchenko, Egor (2258) 1-0
1.e4 e5 2.Bc4 Nc6 3.Nc3 Nf6 4.d3 Na5 5.Nge2 Bc5 6.O-O d6 7.a3 Nxc4 8.dxc4 a5 9.Qd3 Be6 10.b3 O-O 11.Be3 Bxe3 12.Qxe3 a4 13.f3 axb3 14.cxb3 Ra6 15.Rfd1 Qa8 16.a4 Nd7 17.Nd5 Bxd5 18.cxd5 b5 19.Nc3 Rb8 20.Ra2 Nc5 21.Rb1 bxa4 22.b4 Rab6 23.b5 Qa5 24.h4 h6 25.Kh2 Qa7 26.g4 Qb7 27.g5 h5 28.g6 f6 29.f4 exf4 30.Qf3 Nd7 31.Qxh5 Nf8 32.Rxa4 Ra8 33.Rba1 Rxa4 34.Rxa4 Rxb5 35.Nxb5 Qxb5 36.Ra8 Qb2+ 37.Kh3 Qc3+ 38.Kg4 Qg3+ 39.Kf5 Qh3+ 40.Kxf4 Qh2+ 41.Ke3 Qg1+ 42.Ke2 Qg2+ 43.Kd3 Qf1+ 44.Qe2 Qb1+ 45.Qc2 Qf1+ 46.Kc3 Qf2 47.Qxf2 1-0
2024.08.13 Titled Tue 13th Aug Late
416650 GM Obregon Rivero, J (2487) FM Petr, Ja2 (2282) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 Nf6 5.Nc3 Bc5 6.exf5 O-O 7.Nh4 d5 8.Bg5 Nd4 9.g4 c6 10.Ba4 b5 11.Bb3 a5 12.a4 b4 13.Ne2 Nxb3 14.cxb3 Bxf2+ 15.Kf1 Bxh4 16.Bxh4 Nxg4 17.Bxd8 Ne3+ 18.Ke1 Nxd1 19.Rxd1 Rxd8 20.Rf1 Ba6 21.Kd2 Ra7 22.Rc1 Rd6 23.Rc5 Bc8 24.Ng3 Kf7 25.Re1 Rh6 26.Re2 Bd7 27.Rc1 Rc7 28.Rce1 Rh3 29.Kc1 c5 30.Rxe5 c4 31.Re7+ Kf6 32.R1e6+ Bxe6 33.Rxc7 Bxf5 34.Nxf5 Kxf5 35.dxc4 dxc4 36.bxc4 g5 37.c5 Rxh2 38.c6 Rh4 39.b3 Rh3 40.Kb2 h5 41.Rf7+ Kg4 42.c7 Rc3 43.Rd7 h4 44.Rd4+ Kh5 45.Rc4 Rxc4 46.bxc4 h3 47.c8=Q g4 48.Qh8+ Kg5 49.Qe5+ Kh4 50.c5 g3 51.Qf4+ Kh5 52.Qxg3 1-0
2024.08.13 Titled Tue 13th Aug Late
415151 GM Obregon Rivero, J (2487) CM Novak, Rat (2034) 1-0
1.e4 d5 2.exd5 c6 3.dxc6 Nxc6 4.Nf3 e5 5.d3 Bc5 6.Be2 f5 7.O-O Nf6 8.Nc3 O-O 9.a3 a5 10.Be3 Bxe3 11.fxe3 Qb6 12.Qd2 e4 13.dxe4 fxe4 14.Bc4+ Kh8 15.Ng5 Ne5 16.Bb3 Bd7 17.Ncxe4 Bb5 18.Rf4 Nfg4 19.Qd4 Qh6 20.h3 Rfd8 21.Qc5 Bc6 22.hxg4 Bxe4 23.Qxe5 Bg6 24.Raf1 1-0
2024.08.13 Titled Tue 13th Aug Late
415409 FM Belli, Giorgio (2138) GM Obregon Rivero, J (2487) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.Kb1 h6 11.Be3 h5 12.Be2 Qc7 13.g4 hxg4 14.fxg4 g6 15.h4 b5 16.a3 Ne5 17.h5 gxh5 18.gxh5 Nc4 19.Bxc4 Qxc4 20.h6 b4 21.axb4 Qxb4 22.Rh4 Rb8 23.Nb3 a5 24.Bg5 Qb6 25.e5 Ng8 26.exd6 Bxg5 27.Qxg5 a4 28.h7 1-0
2024.08.13 Titled Tue 13th Aug Late
416995 GM Obregon Rivero, J (2487) GM Svane, Rasmus (2633) 1/2-1/2
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Bd6 7.Qe2+ Be7 8.O-O O-O 9.h3 Bd6 10.d4 Re8 11.Qd3 Nd7 12.Bd2 Nb6 13.Bb3 g6 14.Rfe1 Bf5 15.Qf1 Qd7 16.Rxe8+ Rxe8 17.Ba5 Nd5 18.Re1 Rxe1 19.Qxe1 Nf4 20.Bd2 Kg7 21.Bxf4 Bxf4 22.c3 b5 23.Qe2 h5 24.Bc2 Be6 25.Bb3 Bd5 26.Bxd5 cxd5 27.Ne1 a6 28.Nd3 Bd6 29.Nc5 Qf5 30.Nd3 Kf8 31.Qf3 Qg5 32.g3 h4 33.g4 Kg7 34.Kg2 a5 35.Qe3 Qxe3 36.fxe3 f5 37.gxf5 gxf5 38.Nf4 Bxf4 39.exf4 Kf6 40.Kf3 Ke6 41.Ke3 Kd6 42.Kd3 Kc6 43.Kc2 Kb6 44.Kb3 Kc6 45.a4 Kb6 46.Ka3 Kc6 47.b3 Kb6 48.Kb2 bxa4 49.bxa4 Kc6 50.Kb3 Kb6 51.c4 Kc6 52.Kc3 Kd6 53.Kd3 Kc6 54.cxd5+ Kxd5 55.Kc3 Ke4 56.Kc4 Kxf4 57.d5 Kg3 58.d6 f4 59.d7 f3 60.d8=Q f2 61.Qd3+ Kg2 62.Qe4+ Kg1 63.Qg4+ Kh2 64.Qf4+ Kg2 65.Qg5+ Kh2 66.Qf6 Kg2 67.Qg7+ Kh2 68.Qxf7 Kg2 69.Qg6+ Kh2 70.Qf5 Kg2 71.Qg4+ Kh2 72.Qe2 Kg1 73.Qe3 Kg2 74.Qe4+ Kh2 75.Qxh4 f1=Q+ 76.Kc5 Qf5+ 77.Kb6 Qe6+ 78.Kxa5 Qd5+ 79.Kb4 Qd2+ 80.Kc5 Qa5+ 81.Kd6 Qb6+ 82.Ke7 Qc7+ 83.Kf8 Qc5+ 84.Qe7 Qf5+ 85.Qf7 Qc5+ 86.Kg8 Qg5+ 87.Qg7 Qd8+ 88.Kh7 Qd3+ 89.Qg6 Qd7+ 90.Kh6 Qxa4 91.Qg4 Qc6+ 92.Kh5 Qd5+ 93.Kh4 Qd8+ 94.Kh5 Qh8+ 95.Kg6 Qg8+ 96.Kf5 Qd5+ 97.Kf4 Qd4+ 98.Kf3 Qd1+ 99.Kf2 Qd2+ 100.Kf3 Qd3+ 101.Kf4 Qxh3 102.Qxh3+ Kxh3 1/2-1/2
2024.08.11 II Aguascalientes Int
423231 GM Obregon Rivero, J (2487) IM Galaviz Medina, Sion Radamantys (2458) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.h3 h6 9.g4 b5 10.Nd5 Bb7 11.Bb6 Qc8 12.Nc7+ Kf8 13.Bg2 Nbd7 14.Nxa8 Qxa8 15.Be3 Nxe4 16.Rg1 Ng5 17.Bxb7 Qxb7 18.Bxg5 hxg5 19.Qd3 g6 20.O-O-O Kg7 21.Kb1 Nb6 22.Rge1 Qc7 23.Nd2 d5 24.Qg3 Bd6 25.Qe3 e4 26.Qb3 Be5 27.Nf1 Qc5 28.Ne3 Rxh3 29.Nf5+ gxf5 30.Qxh3 Bf6 31.f4 fxg4 32.Qg3 Nc4 33.c3 b4 34.fxg5 Be5 35.Qg1 Qb5 36.Qf1 bxc3 37.b3 Nd2+ 0-1
2024.08.10 II Aguascalientes Int
423207 GM Obregon Rivero, J (2487) GM Alvarez Pedraza, A (2443) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 Nc6 5.a3 Ba5 6.b4 Bb6 7.Na4 Nge7 8.Bb2 O-O 9.Ng3 f5 10.c4 dxc4 11.Nxb6 axb6 12.Bxc4 fxe4 13.O-O Nd5 14.Nxe4 Qh4 15.Qc2 Bd7 16.Rae1 Be8 17.g3 Qg4 18.f4 Nxf4 19.Nf6+ Rxf6 20.Rxf4 Qg6 21.Bd3 Rxf4 22.Bxg6 Bxg6 23.Qc4 Rf7 24.Rxe6 Raf8 25.d5 Nd8 26.Re1 c6 27.d6 b5 28.Qb3 h6 29.Re7 Kh7 30.Rxf7 Rxf7 31.g4 Rf4 32.h3 Re4 33.Qc3 Ne6 34.d7 1-0
2024.08.10 II Aguascalientes Int
423219 GM Delgado Ramirez, N (2485) GM Obregon Rivero, J (2487) 0-1
1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.g4 Nxg4 6.Rg1 Ngf6 7.Bc4 h6 8.Be3 c6 9.Bb3 Qe7 10.Qd2 Nb6 11.O-O-O Be6 12.Qd3 Ng4 13.Kb1 Nxe3 14.Qxe3 Bxb3 15.axb3 g6 16.d5 c5 17.Ne2 O-O-O 18.c4 h5 19.Nd2 Bh6 20.Qc3 Qh4 21.Qf3 Rdf8 22.Kc2 Kc7 23.Rg3 Rhg8 24.Nc3 a6 25.Rh3 Qd8 26.Rg3 Bf4 27.Rg2 f5 28.exf5 Bxd2 29.Rxd2 Rxf5 30.Qe3 g5 31.Ne4 g4 32.Rg3 h4 33.Rg1 Qf8 34.Nxc5 dxc5 35.d6+ Kb8 36.Qxc5 Qd8 37.d7 Qc7 38.Qxc7+ Kxc7 39.Rxg4 Rd8 0-1
2024.08.09 II Aguascalientes Int
423182 GM Obregon Rivero, J (2487) FM Perez Rodriguez, Cesar Alejandro (2305) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.Be2 Be7 9.O-O O-O 10.Qd2 Nbd7 11.a4 Rc8 12.a5 Qc7 13.Rfc1 Nc5 14.Nxc5 dxc5 15.f3 c4 16.Na4 Nd7 17.Qe1 Qc6 18.Kh1 h6 19.b4 f5 20.exf5 Bxf5 21.c3 Bg5 22.Bxg5 hxg5 23.Nb2 e4 24.Bxc4+ Kh8 25.fxe4 Bxe4 26.Qg3 Ne5 27.Qh3+ Qh6 28.Qxh6+ gxh6 29.Bf1 Ng4 30.Kg1 Ne3 31.Bd3 Bxd3 32.Nxd3 Rfd8 33.Nc5 Rd2 34.Re1 Nxg2 35.Re6 Nf4 36.Rxh6+ Kg7 37.Rb6 Rg2+ 38.Kf1 Rxh2 39.Re1 Rxc5 40.Rxb7+ Kf6 41.bxc5 Rh1+ 42.Kf2 Nd3+ 43.Ke2 Nxe1 44.Rb6+ Ke5 45.c6 Kd6 46.Rxa6 Ng2 47.c7+ Kxc7 48.Ra7+ Kd6 49.a6 Nf4+ 50.Kf3 Ne6 51.Ra8 Rh3+ 52.Kg4 Rxc3 53.a7 Ra3 54.Kf5 Rf3+ 55.Kg6 Ra3 56.Kf6 Rf3+ 57.Kg6 Ra3 58.Kf6 g4 59.Rg8 Rf3+ 60.Kg6 Nc7 61.Kh5 g3 62.Kh4 Ra3 63.Rxg3 Rxa7 64.Rb3 Nd5 65.Kg3 Ke5 66.Kf3 Rh7 67.Rb5 Rf7+ 68.Kg3 Ke4 69.Ra5 Rg7+ 70.Kf2 Nc3 71.Ra8 Rf7+ 72.Kg2 Ke3 73.Ra3 Rg7+ 74.Kh3 Kd4 75.Kh4 Ne4 76.Ra5 Ke3 77.Rf5 Rg1 78.Rf8 Nd6 79.Rf6 Rh1+ 80.Kg4 Rg1+ 81.Kh4 Ne8 82.Ra6 Ng7 83.Ra3+ Kf4 84.Ra4+ Kf5 85.Ra5+ Kf6 86.Ra6+ Ne6 87.Ra5 Nd4 88.Kh3 Nf5 89.Ra8 Ke5 90.Ra5+ Kf4 91.Ra4+ Kg5 92.Kh2 Rd1 93.Kg2 Nd4 94.Ra8 Rd2+ 95.Kg3 Rd3+ 96.Kf2 Kf4 97.Rf8+ Nf5 98.Ke2 Rd6 99.Kf2 Rd2+ 100.Ke1 Rh2 101.Re8 Ng3 102.Kd1 Ne4 103.Ra8 Nc3+ 104.Kc1 Ke3 105.Re8+ Kd4 106.Rd8+ Nd5 107.Kd1 Ke4 108.Kc1 Ne3 109.Kb1 1/2-1/2
2024.08.09 II Aguascalientes Int
423198 FM Morales Garcia, S (2208) GM Obregon Rivero, J (2487) 0-1
1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Be7 5.Bf4 O-O 6.e3 b6 7.Bd3 Bb7 8.cxd5 exd5 9.O-O c5 10.Rc1 c4 11.Bb1 a6 12.Ne5 b5 13.Qc2 Nbd7 14.h3 Re8 15.Ne2 Nf8 16.Ng3 Ne4 17.Nf5 Bg5 18.Nxf7 Kxf7 19.f3 Bxf4 20.fxe4 Bg5 21.e5 Kg8 22.Nd6 g6 23.Rf3 Re7 24.Rcf1 Qd7 25.Qf2 Bh6 26.Qh4 Bg7 27.Bf5 gxf5 28.Nxf5 Ng6 29.Qg4 Rf8 30.h4 Rxf5 31.Rxf5 Bc8 32.Qg5 Qe8 33.R5f3 h6 34.Qg3 Kh7 35.h5 Nh8 36.Qh4 Nf7 37.e4 Be6 38.exd5 Bxd5 39.Rf5 Ng5 40.Qf2 Qxh5 41.Qc2 Qg6 42.Qc3 Rf7 43.Rxf7 Bxf7 44.Qg3 Bd5 45.Rf4 Qb1+ 46.Kh2 Qxb2 0-1
2024.08.08 II Aguascalientes Int
423173 IM Estrada Nieto, J (2218) GM Obregon Rivero, J (2487) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.Qe2 Nc6 7.c3 e6 8.d4 cxd4 9.cxd4 d5 10.e5 Ne4 11.Nbd2 Nxd2 12.Bxd2 Bb4 13.Be3 O-O 14.Rac1 Rfc8 15.Qd3 h6 16.h4 Be7 17.Bd2 Qd8 18.g3 a5 19.Kg2 Qb6 20.Qb1 a4 21.g4 a3 22.bxa3 Qa7 23.g5 h5 24.g6 f6 25.Rfe1 fxe5 26.dxe5 Qa4 27.Bb4 Bxb4 28.axb4 Nxb4 29.Rxc8+ Rxc8 30.Rc1 Nc2 31.Qxb7 Rf8 32.Nh2 Qe4+ 33.f3 Ne3+ 34.Kf2 Qxh4+ 35.Kxe3 Qf4+ 0-1
2024.08.07 II Aguascalientes Int
423143 WGM Miranda Llanes, Y (2269) GM Obregon Rivero, J (2487) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.Be3 Re8 9.Nd2 Na6 10.O-O Nc7 11.a4 b6 12.Qc2 a6 13.Rae1 Rb8 14.Bg5 Qd7 15.f4 h6 16.Bxf6 Bxf6 17.e5 dxe5 18.Nde4 Bg7 19.d6 exf4 20.Rxf4 f5 21.dxc7 Qxc7 22.Rff1 fxe4 23.Nxe4 Bd4+ 24.Kh1 Kg7 25.Bd3 Bb7 26.Ng3 g5 27.Qe2 Qc6 28.Be4 Qd7 29.Bc2 Rf8 30.Qd3 Rxf1+ 31.Rxf1 Kh8 32.Nh5 Rg8 33.Rf6 Bxg2+ 34.Kxg2 Qb7+ 35.Qf3 Qxf3+ 36.Rxf3 Rd8 37.Rf7 Bxb2 38.Bg6 Kg8 39.Re7 Kf8 40.Rxe6 Rb8 41.Kf3 Bd4 42.Ke4 g4 43.Kf5 b5 44.cxb5 axb5 45.axb5 c4 46.Kxg4 c3 47.Bd3 Bg1 48.Rxh6 Ke7 49.Nf4 Rd8 50.Re6+ Kf7 51.Bg6+ Kg8 52.h4 Rb8 53.h5 Rxb5 54.Re8+ Kg7 55.Re7+ Kf8 56.Rf7+ Kg8 57.h6 Bc5 58.h7+ Kh8 59.Be4 c2 60.Ng6# 1-0
2024.08.06 II Aguascalientes Int
423111 GM Obregon Rivero, J (2487) Reyes Bautista, Alejandro (2023) 1-0
1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Qc2 e6 5.g3 Ne4 6.Bg2 Nd7 7.O-O Be7 8.Nbd2 f5 9.Ne1 Nxd2 10.Bxd2 O-O 11.Nd3 Bd6 12.b4 Qe7 13.Rab1 Nf6 14.b5 Bd7 15.a4 Rac8 16.b6 a6 17.Bb4 Ne8 18.Nc5 Rb8 19.Nxa6 bxa6 20.c5 Bc7 21.bxc7 Nxc7 22.Ba5 Na8 23.Rxb8 Rxb8 24.Rb1 Rxb1+ 25.Qxb1 Bc8 26.Qb8 Qb7 27.Qxb7 Bxb7 28.f3 Kf7 29.Kf2 Ke7 30.Ke3 g5 31.h4 h6 32.hxg5 hxg5 33.Kd3 Bc8 34.Kc2 Bd7 35.Kb3 Bc8 36.Bf1 Bb7 37.Bd2 Kf6 38.Kb4 e5 39.dxe5+ Kxe5 40.Bxg5 Bc8 41.Bf4+ Kd4 42.e3# 1-0
2024.07.02 Titled Tue 2nd Jul Late
479244 Paikens, Reinis (2165) GM Obregon Rivero, J (2481) 1-0
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d3 c5 6.e4 Nc6 7.Nge2 Ne8 8.O-O Nc7 9.Be3 Ne6 10.Rb1 Ned4 11.a3 b6 12.b4 d6 13.e5 Bb7 14.exd6 exd6 15.b5 Nxe2+ 16.Nxe2 Na5 17.Bxb7 Nxb7 18.Nf4 Qd7 19.Nd5 Nd8 20.Bh6 Ne6 21.Bxg7 Kxg7 22.Qf3 f6 23.Rfe1 Rae8 24.Kg2 Nd4 25.Qf4 g5 26.Qd2 Qf5 27.Re3 Re5 28.Rbe1 Rxd5 29.cxd5 Qxd5+ 30.f3 Rf7 31.h3 h5 32.g4 h4 33.Re4 Nxb5 34.f4 Nd4 35.Kf2 f5 36.gxf5 Qxf5 37.Rg1 Kh7 38.Rg4 Ne6 39.Kg1 Nxf4 40.Kh2 d5 41.Re1 Kg6 42.Reg1 Ne6 43.R1g2 Qe5+ 44.Kg1 Rf5 45.Re2 Qf6 46.Qe3 d4 47.Qxe6 Rf1+ 48.Kg2 Rf2+ 49.Kg1 Rf1+ 50.Kg2 Rf2+ 51.Kg1 Rf3 52.Qe4+ Kh6 53.Kg2 a5 54.Qe6 Rf2+ 55.Kg1 Rf1+ 56.Kh2 Kg6 57.Qxf6+ Kxf6 58.Rgg2 Rd1 59.Rgf2+ Kg6 60.Re6+ Kg7 61.Rxb6 Rxd3 62.Re2 Kf7 63.Rb5 c4 64.Rf5+ Kg6 65.Rxa5 c3 66.Re6+ Kf7 67.Rc6 Re3 68.Ra7+ Re7 69.Rxe7+ Kxe7 70.Rc4 Kd6 71.Rxd4+ Kc5 72.Rd8 Kc4 73.Rb8 g4 74.hxg4 c2 75.a4 Kd3 76.Rc8 c1=Q 77.Rxc1 1-0
2024.07.02 Titled Tue 2nd Jul Late
479758 GM Obregon Rivero, J (2481) FM Rees, I (2251) 1-0
1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Qb3 dxc4 5.Qxc4 Bf5 6.g3 e6 7.Bg2 Be7 8.Nc3 O-O 9.O-O Nbd7 10.e3 Rc8 11.Rd1 Bc2 12.Rd2 Bg6 13.Nh4 Ne4 14.Nxg6 Nxd2 15.Nxe7+ Qxe7 16.Bxd2 c5 17.d5 Nb6 18.Qd3 exd5 19.Nxd5 Nxd5 20.Bxd5 Rfd8 21.e4 a6 22.Bc3 b5 23.b3 c4 24.Qd4 Qf8 25.b4 Rd6 26.Re1 Re8 27.Re3 Kh8 28.Rf3 f6 29.Rf5 h6 30.h4 Qe7 31.f3 Qc7 32.Kg2 Red8 33.g4 Qe7 34.Qf2 R6d7 35.g5 fxg5 36.hxg5 Rd6 37.gxh6 Rxh6 38.Qg3 Rdd6 39.Rf7 1-0
2024.07.02 Titled Tue 2nd Jul Late
480306 GM Niemann, Hans Moke (2703) GM Obregon Rivero, J (2481) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 Qb6 4.Nc3 e6 5.O-O Nd4 6.a4 a6 7.Bc4 Qc7 8.d3 Nxf3+ 9.Qxf3 Nf6 10.Qe2 d6 11.f4 Be7 12.e5 Nd7 13.exd6 Bxd6 14.f5 Bxh2+ 15.Kh1 Nf6 16.fxe6 O-O 17.exf7+ Kh8 18.Rxf6 gxf6 19.Bh6 Bf5 20.Bxf8 Rxf8 21.Qh5 Be5 22.Qxf5 Qb6 23.Re1 Qxb2 24.Rxe5 Qc1+ 25.Nd1 Qxd1+ 26.Kh2 1-0
2024.07.02 Titled Tue 2nd Jul Late
479559 CM Bold, Andre (2215) GM Obregon Rivero, J (2481) 0-1
1.e4 c5 2.Nc3 Nc6 3.Bb5 Nd4 4.Nf3 Nxf3+ 5.Qxf3 a6 6.Bc4 e6 7.a4 Qc7 8.O-O Nf6 9.d3 Be7 10.a5 d6 11.Bd2 Bd7 12.Na4 Bxa4 13.Rxa4 O-O 14.Ra3 Rad8 15.Bg5 Kh8 16.Raa1 Qc6 17.Bb3 h6 18.Bxf6 Bxf6 19.c3 Qb5 20.Qd1 d5 21.exd5 exd5 22.c4 dxc4 23.Bxc4 Qc6 24.Qf3 Qc7 25.Rae1 Bd4 26.Re4 Bxb2 27.Rf4 Be5 28.Rxf7 Rxf7 29.Qxf7 Qxf7 30.Bxf7 Rxd3 31.Bg6 Rd6 32.Be4 Bc3 33.g3 Bxa5 34.Bxb7 Bb4 35.f4 a5 36.Rf2 g5 37.f5 c4 38.Re2 c3 39.Kf2 Kg7 40.g4 a4 41.Bc8 a3 42.Be6 Bc5+ 43.Kg2 Rd2 44.Kf1 c2 0-1
2024.07.02 Titled Tue 2nd Jul Late
480647 GM Obregon Rivero, J (2481) GM Gurevich, D (2347) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4 7.O-O Nge7 8.Nb5 d5 9.exd5 exd5 10.Bf4 dxc4 11.Nc7+ Kf8 12.Qxd8+ Nxd8 13.Nxa8 Ne6 14.Bg3 b5 15.a4 c3 16.bxc3 Bxc3 17.Rac1 b4 18.Nc7 Nxc7 19.Bxc7 f6 20.Bf4 Bg4 21.Bd2 Nd5 22.Rfd1 Bxf3 23.gxf3 Kf7 24.Be3 Ke6 25.Bxa7 Ra8 26.Bd4 Rxa4 27.Bxc3 Nxc3 28.Rd2 Ke5 29.Re1+ Kf5 30.Rd7 b3 31.Rb7 Ra3 32.Kg2 Nd5 33.Rb5 b2 34.Rxd5+ Kg6 35.Rb1 1-0
2024.07.02 Titled Tue 2nd Jul Late
480915 GM Obregon Rivero, J (2481) GM Goryachkina, A (2545) 1-0
1.Nf3 d5 2.c4 e6 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 8.e3 b6 9.Nc3 Bb7 10.cxd5 Nxd5 11.Nxd5 Qxd5 12.d4 Rfd8 13.Ne5 Qxg2+ 14.Kxg2 Nxe5+ 15.f3 cxd4 16.exd4 Ng6 17.Qe2 Bf6 18.d5 Bxb2 19.Qxb2 Bxd5 20.Rac1 Rd7 21.Rc2 Rad8 22.Rfc1 h6 23.Rc8 Kh7 24.Rxd8 Rxd8 25.Rc7 e5 26.Rxa7 Rd6 27.Kf2 Rf6 28.Qc3 e4 29.f4 Rc6 30.Qxc6 Bxc6 31.Ra6 Ne7 32.Rxb6 Bd5 33.a4 Nf5 34.a5 e3+ 35.Ke2 Nd4+ 36.Kxe3 Nxb3 37.a6 Nc5 38.a7 Ne6 39.Rd6 Bh1 40.f5 Nc7 41.Rd7 Nb5 42.Rxf7 h5 43.Kf4 Kh6 44.Rf8 g5+ 45.Ke5 Nxa7 46.Kf6 Kh7 47.Rf7+ 1-0
2024.07.02 Titled Tue 2nd Jul Late
479393 GM Obregon Rivero, J (2481) Mesquita, Eduardo Barbosa (1958) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 Nc6 6.Bc4 e6 7.O-O Nf6 8.Qe2 Be7 9.Rd1 Qc7 10.Nb5 Qb8 11.Bf4 e5 12.Bg5 a6 13.Bxf6 axb5 14.Bxe7 bxc4 15.Bxd6 Qa7 16.Qxc4 Be6 17.Qc3 f6 18.Bc5 Qa4 19.b3 Qxe4 20.Rd6 Kf7 21.Re1 Qg4 22.h3 Qf4 23.Be3 Qf5 24.Nh4 Qh5 25.Rxe6 Kxe6 26.Qc4+ Kd7 27.Bb6 Ke8 28.Qe6+ Ne7 29.Bc5 Qf7 30.Qb6 Nc8 31.Qb4 Qd7 32.f4 b6 33.Bf2 Qd6 34.Qb5+ Qd7 35.Qe2 Kf7 36.Qh5+ Kg8 37.fxe5 g6 38.Qf3 fxe5 39.Qxa8 Kg7 40.Qe4 Re8 41.Nf3 Nd6 42.Qd5 Qe7 43.Rxe5 Qf7 44.Qxd6 Rc8 1-0
2024.07.02 Titled Tue 2nd Jul Late
479939 FM Meers, Hubert (2281) GM Obregon Rivero, J (2481) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.Be3 O-O 10.f3 Rc8 11.b3 e6 12.Rc1 d5 13.e5 Ne8 14.cxd5 exd5 15.f4 Nc6 16.O-O Nc7 17.Ndb5 Nxb5 18.Nxb5 Nxe5 19.Rxc8+ Rxc8 20.Nxa7 Ng4 21.Bd4 Rc1 22.Qd2 Bxd4+ 23.Qxd4 Rxf1+ 24.Kxf1 Nxh2+ 25.Kg1 Ng4 26.a4 Qe7 27.Kf1 Ne3+ 28.Kf2 Nf5 29.Qb6 d4 0-1
2024.07.02 Titled Tue 2nd Jul Late
480465 GM Obregon Rivero, J (2481) IM Altini, N (2374) 0-1
1.c4 e5 2.Nc3 Bb4 3.Nf3 Bxc3 4.bxc3 e4 5.Nd4 c5 6.Nc2 Nf6 7.g3 d5 8.cxd5 Qxd5 9.Bg2 Qh5 10.Rb1 Bh3 11.Bxh3 Qxh3 12.Ne3 b6 13.Qa4+ Nbd7 14.Qc6 O-O 15.Qd6 Rfe8 16.Qf4 Ne5 17.Qf5 Neg4 18.a4 Re5 19.Qf4 g5 20.Qxe5 Nxe5 21.a5 Nfg4 22.axb6 axb6 23.Rf1 Nxh2 0-1
2024.07.02 Titled Tue 2nd Jul Late
480242 GM Obregon Rivero, J (2481) GM Grischuk, Alexander (2708) 1/2-1/2
1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Qb3 e6 5.g3 dxc4 6.Qxc4 b5 7.Qc2 Bb7 8.Bg2 Nbd7 9.a4 a6 10.Nc3 Rc8 11.O-O b4 12.Ne4 c5 13.Nxf6+ Nxf6 14.Rd1 Be4 15.Qd2 c4 16.a5 Be7 17.Qe1 O-O 18.Bd2 Nd5 19.Rdc1 c3 20.bxc3 bxc3 21.Bxc3 Rxc3 22.Rxc3 Bb4 23.Nd2 Bxg2 24.Rb3 Be4 25.Rxb4 Nxb4 26.Nxe4 Nc2 27.Qc3 Nxa1 28.Qxa1 Qd5 29.Nc5 Qc4 30.Qb2 h6 31.e3 Qb5 32.Qxb5 axb5 33.Kf1 Ra8 34.a6 Kf8 35.Ke2 Ke7 36.Kd2 Kd6 37.Kc3 Kc6 38.Kb4 Kb6 39.f4 Rc8 40.h4 h5 41.e4 Rd8 42.Kc3 Rd6 43.e5 Rd5 44.Kd3 Rd8 45.Kc3 Rd5 46.Kd3 Rd8 47.Kc3 g6 48.Kd3 Rd5 49.Kc3 Rd8 50.Kd3 Rc8 51.Kc3 Ka5 52.Kb3 Ra8 53.Ka3 Kb6 54.Kb4 Rd8 55.Kc3 Rd5 56.Kd3 Rd8 57.Kc3 Ra8 58.Kb4 Rd8 59.Kc3 1/2-1/2
2024.07.02 Titled Tue 2nd Jul Late
480757 IM Slugin, S (2336) GM Obregon Rivero, J (2481) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 h6 10.Bh4 Nxe4 11.Nxe4 Qxh4 12.Nxc6 Bxc6 13.Nxd6+ Bxd6 14.Qxd6 Rd8 15.Qxd8+ Qxd8 16.Rxd8+ Kxd8 17.Rg1 Ke7 18.Bd3 g5 19.f5 e5 20.g3 Kf6 21.Re1 Rd8 22.g4 h5 23.h3 hxg4 24.hxg4 Bf3 25.Be2 Bxe2 26.Rxe2 Rd4 27.Rg2 e4 28.c3 Rd3 29.Kc2 Ke5 30.b4 Kf4 31.a4 Rd7 32.Rd2 Rxd2+ 33.Kxd2 Kf3 34.Ke1 Ke3 35.c4 Kd4 36.c5 Kc4 0-1
2024.06.25 Titled Tue 25th Jun Late
488087 GM Obregon Rivero, J (2483) CM Spichkin, A (2035) 1-0
1.e4 e5 2.Nf3 d5 3.d4 dxe4 4.Nxe5 Bd6 5.Nc4 Nf6 6.Nc3 Nc6 7.Be3 Bg4 8.Be2 Bxe2 9.Qxe2 Qd7 10.O-O-O O-O 11.Bg5 Be7 12.Bxf6 Bxf6 13.Nxe4 Bxd4 14.c3 Rfe8 15.cxd4 f5 16.Ne5 Nxe5 17.dxe5 Qc6+ 18.Nc3 Qxg2 19.Rhg1 Qxh2 20.Qc4+ Kh8 21.f4 c6 22.Kb1 Rad8 23.Qf7 Qh6 24.Rd7 Rg8 25.Rxg7 Qxg7 26.Qxg7+ Rxg7 27.Rxd8+ Rg8 28.Rxg8+ Kxg8 29.Kc2 Kf7 30.Kd3 Ke6 31.Ke3 b5 32.Kf3 a5 33.Kg3 1-0
2024.06.11 Titled Tue 11th Jun Early
505090 GM Obregon Rivero, J (2483) GM Beerdsen, Thomas (2513) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 h6 5.O-O d6 6.a4 g5 7.a5 g4 8.Ne1 a6 9.Nc3 Be6 10.Nd5 Bxd5 11.exd5 Ne7 12.f3 Qd7 13.fxg4 Bg7 14.h3 O-O-O 15.Qf3 e4 16.dxe4 Ng6 17.Qf5 Rhe8 18.Bd3 Nh4 19.Qxd7+ Rxd7 20.Bxh6 Bxh6 21.Rxf6 Bg7 22.Rf1 Bxb2 23.Ra2 Bc3 24.Nf3 Ng6 25.Ra3 Bb4 26.Ra2 Rh8 27.Rb1 Bc5+ 28.Kf1 Re7 29.Rab2 b5 30.axb6 cxb6 31.Bxa6+ Kb8 32.Bd3 Ra7 33.Nd2 Ne5 34.Nc4 Nxc4 35.Bxc4 Ra4 36.Bd3 Rh6 37.Ke2 Kc7 38.Rf1 f6 39.Rbb1 Bd4 40.Bb5 Ra2 41.Bd3 Rh8 42.Rf3 Be5 43.Rbf1 b5 44.Rb1 Rb8 45.Kd1 b4 46.g5 b3 47.gxf6 b2 48.f7 Bc3 49.Ke2 Rf8 50.e5 dxe5 51.Bg6 Ra1 52.Rxc3+ Kd6 53.Rxb2 Rg1 54.Be4 Ke7 55.Rc7+ Kf6 56.Rb6+ Kg5 57.Rg6+ Kf4 58.Bf3 e4 59.Rg4+ Ke5 60.Rxe4+ Kd6 61.Rc6+ Kxd5 62.Ree6+ Kd4 63.Rc7 Rxf7 64.Rxf7 Kc3 65.Rc6+ Kd4 66.Rd7+ Ke5 67.Rd5+ Kf4 68.Rc4+ Kg3 69.Rg4+ Kh2 70.h4 Kh1 71.h5 Ra1 72.h6 Kg1 73.h7 Rc1 74.Kd2 Rf1 75.h8=Q Rf2+ 76.Kc3 Rf1 77.Qd4+ Kh2 78.Rh4+ Kg3 79.Rh3# 1-0
2024.06.11 Titled Tue 11th Jun Early
506891 GM Obregon Rivero, J (2483) GM Svane, Frederik (2638) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.a4 a5 7.Nc3 O-O 8.h3 h6 9.Be3 Re8 10.Nd5 Be6 11.c3 Bxe3 12.fxe3 Bxd5 13.exd5 Ne7 14.e4 c6 15.dxc6 bxc6 16.Kh2 Ng6 17.Rf2 Qb6 18.Qd2 d5 19.exd5 cxd5 20.Bb5 Re7 21.Re1 Qd6 22.Kh1 Nh5 23.Kg1 Nhf4 24.d4 e4 25.Ne5 Nh5 26.g4 Nf6 27.Nxg6 fxg6 28.Qf4 Qb6 29.g5 Nh5 30.Qh4 Qd6 31.gxh6 gxh6 32.Rg2 Nf4 33.Rg3 g5 34.Qg4 Rf8 35.h4 Rg7 36.h5 Nxh5 37.Rg2 Nf4 38.Rh2 h5 39.Qd1 g4 40.Rf1 Nh3+ 41.Kg2 Rxf1 42.Bxf1 Rf7 43.Rxh3 gxh3+ 44.Kxh3 Rf3+ 45.Kg2 Qg3+ 46.Kh1 Qh4+ 47.Kg1 Qf2+ 48.Kh1 Qxf1+ 0-1
2024.06.11 Titled Tue 11th Jun Early
506147 GM Vasquez Schroeder, R (2475) GM Obregon Rivero, J (2483) 0-1
1.e4 e5 2.Nf3 Nf6 3.d3 Nc6 4.c3 d5 5.Qc2 Bd6 6.Be2 h6 7.O-O O-O 8.b4 Ne7 9.Re1 c6 10.Bf1 Ng6 11.h3 a5 12.bxa5 Qxa5 13.Nbd2 Qa4 14.Nb3 Be6 15.Bd2 dxe4 16.dxe4 Rfd8 17.Bc1 Bxb3 0-1
2024.06.11 Titled Tue 11th Jun Early
505383 GM Obregon Rivero, J (2483) GM Drygalov, Andrey (2457) 1-0
1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 e6 6.Bc4 Nc6 7.Qe4 f5 8.Qe2 Nde7 9.Nf3 Qc7 10.O-O Ng6 11.Re1 Be7 12.Bb3 O-O 13.a4 Na5 14.Bc2 b6 15.b4 Nc6 16.Na3 Bb7 17.Nb5 Qb8 18.Bb3 a6 19.Nd6 Bxd6 20.exd6 Qxd6 21.Rd1 Qb8 22.Rxd7 Kh8 23.Ng5 Nce5 24.Qh5 h6 25.Bxe6 Nxd7 26.Qxg6 Nf6 27.Nf7+ Rxf7 28.Qxf7 Ng4 29.g3 Qe5 30.Bxh6 Nxh6 31.Qxb7 Re8 32.Bd7 Rd8 33.Qxa6 Qxc3 34.Rd1 Qc2 35.Qd3 Qb2 36.a5 bxa5 37.bxa5 Qf6 38.a6 Qb6 39.Rb1 Rxd7 40.Rxb6 Rxd3 41.a7 Rd1+ 42.Kg2 Ra1 43.Rb8+ Kh7 44.a8=Q Rxa8 45.Rxa8 Ng4 46.Ra5 Kg6 47.Ra6+ Kf7 48.Ra3 Ne5 49.h3 Kf6 50.Ra6+ Kf7 51.Ra5 Kf6 52.f4 Nc4 53.Ra6+ Kf7 54.g4 Ne3+ 55.Kf3 Nd5 56.gxf5 Nb4 57.Rb6 Nd5 58.Rd6 Nf6 59.Rxf6+ gxf6 60.Ke4 Ke7 61.Kd5 Kd7 62.h4 Ke7 63.Kc6 Kf7 64.Kd6 Kg7 65.Ke6 Kh7 66.Kxf6 Kh6 67.Kf7 Kh5 68.f6 Kh6 69.Ke7 Kg6 70.f7 Kh7 71.f8=Q Kg6 72.Qf6+ Kh7 73.Qg5 Kh8 74.Kf7 1-0
2024.06.11 Titled Tue 11th Jun Early
504370 GM Obregon Rivero, J (2483) Jorajuria Mendoza, Algol (2082) 1-0
1.e4 c5 2.d4 cxd4 3.c3 d3 4.Bxd3 d6 5.Nf3 Nf6 6.O-O Nc6 7.h3 g6 8.c4 Bg7 9.Nc3 Nd7 10.Bg5 O-O 11.Rc1 Nde5 12.b3 a5 13.Bb1 Be6 14.Re1 Qe8 15.Nd5 Rc8 16.Nh2 h6 17.Be3 Nd7 18.Qd2 Kh7 19.f4 f5 20.Nf3 Qf7 21.Nd4 fxe4 22.Nxe6 Qxe6 23.Bf2 Nc5 24.Bxc5 dxc5 25.Rxe4 Qf7 26.Rce1 Rce8 27.Re6 Bf6 28.Kh1 Nd4 29.R6e4 e6 30.Ne3 Nf5 31.Kh2 Rd8 32.Qxa5 Nd6 33.Ng4 Nxe4 34.Rxe4 Rd1 35.Bc2 Rc1 36.Qd2 Rf1 37.Qe2 Ra1 38.Rxe6 Bd4 39.Bxg6+ Qxg6 40.Rxg6 Kxg6 41.Qe6+ Kg7 42.Qxh6+ Kf7 43.f5 Rg8 44.Qe6+ Kf8 45.f6 Rg5 46.Qe7+ 1-0
2024.06.11 Titled Tue 11th Jun Early
506437 GM Obregon Rivero, J (2483) GM Demchenko, A (2609) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 h6 5.O-O d6 6.a4 Be7 7.a5 a6 8.Nc3 Bg4 9.Be3 Qc8 10.Nd5 Nxd5 11.Bxd5 O-O 12.h3 Be6 13.d4 Bf6 14.Bxc6 bxc6 15.dxe5 dxe5 16.Qd2 Qb7 17.Qc3 Qb5 18.b3 Rfd8 19.Rfd1 Rd6 20.Bc5 Rxd1+ 21.Rxd1 Qe2 22.Re1 Qb5 23.Nxe5 Rd8 24.f4 Bc8 25.b4 Be6 26.f5 Bc8 27.Qg3 Rd2 28.Ng4 Bb2 29.Nxh6+ Kh7 30.Nxf7 Re2 31.Qg6+ Kg8 32.Rd1 1-0
2024.06.11 Titled Tue 11th Jun Early
505942 GM Obregon Rivero, J (2483) FM Vasli, A (2387) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O Nf6 5.d4 exd4 6.e5 d5 7.Bb5 Ne4 8.Nxd4 O-O 9.Nxc6 bxc6 10.Bxc6 Ba6 11.b4 Bxf1 12.bxc5 Bc4 13.Bxa8 Qxa8 14.Be3 Re8 15.f3 Rxe5 16.fxe4 Rxe4 17.Bf2 Qe8 18.Nd2 Re2 19.Nxc4 dxc4 20.Qxe2 Qxe2 21.Re1 Qxe1+ 1-0
2024.06.11 Titled Tue 11th Jun Early
505502 GM Bluebaum, M (2647) GM Obregon Rivero, J (2483) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Nxd4 10.Bxd4 a5 11.Qd3 Bd7 12.Rad1 Bc6 13.f4 Nd7 14.Bxg7 Kxg7 15.Kh1 Qb6 16.b3 Qc5 17.Bf3 Nf6 18.Rfe1 Rfd8 19.Nd5 Bxd5 20.exd5 Rd7 21.g4 Kg8 22.g5 Ne8 23.Bg4 Rc7 24.f5 a4 25.fxg6 hxg6 26.Rf1 Ng7 27.Be6 Nxe6 28.dxe6 Rf8 29.exf7+ Kg7 30.Qe4 Rxf7 31.Rxf7+ Kxf7 32.Rf1+ Kg7 33.Qh4 Qc6+ 34.Kg1 Qc5+ 35.Kg2 Kg8 36.Qh6 Rc8 37.Qxg6+ Kh8 38.Rf7 Qc6+ 39.Kg3 1-0
2024.06.11 Titled Tue 11th Jun Early
504551 FM Vargas, M (2000) GM Obregon Rivero, J (2483) 0-1
1.e4 c5 2.Nc3 e6 3.f4 d5 4.e5 Nc6 5.Nf3 Nh6 6.h3 Nf5 7.g4 Nh4 8.d3 h5 9.g5 Nxf3+ 10.Qxf3 g6 11.Bg2 b6 12.O-O Bb7 13.Bd2 Qd7 14.Rac1 Nd4 15.Qd1 Nf5 16.Qe1 b5 17.a4 b4 18.Ne2 Qxa4 19.b3 Qb5 20.Ra1 a5 21.Ng3 Nd4 22.Qd1 h4 23.Ne2 Nf5 24.Ra4 c4 25.dxc4 dxc4 26.Bxb7 Qxb7 27.Qa1 c3 28.Be1 Bc5+ 29.Bf2 Ng3 30.Bxc5 Qh1+ 31.Kf2 Qh2+ 32.Ke3 Qxe2+ 33.Kd4 Nf5# 0-1
2024.06.11 Titled Tue 11th Jun Early
506609 IM Terry, R (2521) GM Obregon Rivero, J (2483) 0-1
1.d4 Nf6 2.Bg5 g6 3.Nc3 h6 4.Bf4 d5 5.Qd2 a6 6.f3 c5 7.dxc5 Qa5 8.O-O-O Be6 9.e4 dxe4 10.Nxe4 Qxd2+ 11.Nxd2 Nbd7 12.c6 bxc6 13.Nb3 Bxb3 14.cxb3 e5 15.Bd2 Bc5 16.Ne2 Nd5 17.Kb1 h5 18.Nc3 Bd4 19.Bc4 N7b6 20.Ne2 Be3 21.Ba5 O-O 22.Nd4 Bxd4 0-1
2024.06.11 Titled Tue 11th Jun Early
505851 IM Galchenko, Matvey (2438) GM Obregon Rivero, J (2483) 1-0
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Nc6 6.dxc5 Qxc5 7.Be3 Qa5 8.Na3 e6 9.Nb5 Nd5 10.Bd2 a6 11.Nbd4 Nxd4 12.Nxd4 Qb6 13.Bc4 Nf6 14.b4 Be7 15.O-O O-O 16.Re1 Rd8 17.a3 Qc7 18.Bb3 b6 19.Qe2 Bb7 20.Rac1 Kh8 21.Bg5 Rac8 22.Bh4 Ne4 23.Bxe7 Qxe7 24.Qe3 Qf6 25.Ne2 Nd2 26.Ba2 Qg6 27.Ng3 b5 28.Red1 Nc4 29.Bxc4 Rxd1+ 30.Rxd1 bxc4 31.Qb6 Bd5 32.Qxa6 Rg8 33.Qb6 Qc2 34.Qd4 h6 35.h4 Qb3 36.Nf1 Qxa3 37.Ne3 Qb3 38.Re1 Rd8 39.Ng4 Kg8 40.Re3 Qb1+ 41.Kh2 Qf5 42.Rg3 Kf8 43.Qc5+ Ke8 44.Qb5+ Ke7 45.Qc5+ Ke8 46.Ne3 Qe5 47.Nxc4 1-0
2024.05.21 Titled Tue 21st May Late
535305 GM Obregon Rivero, J (2483) CM Filali, Razzouki Marouane (2234) 1-0
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nf6 5.h3 Nc6 6.c3 e5 7.dxe5 Nxe5 8.Nf3 Bd6 9.O-O O-O 10.Bc2 Ng6 11.Nbd2 Be6 12.Re1 Qd7 13.Nf1 Rfe8 14.Bg5 Nh5 15.Nd4 Nhf4 16.Nxe6 Nxe6 17.Be3 Rad8 18.Bxa7 Ng5 19.Qg4 Qxg4 20.hxg4 Bc7 21.Be3 Ne4 22.Rad1 Ne5 23.f3 Nf6 24.Bg5 Bb6+ 25.Kh1 d4 26.Ba4 Re6 27.Bb3 Ree8 28.cxd4 Rxd4 29.Bxf6 gxf6 30.Rxd4 Bxd4 31.f4 Bf2 32.Re2 Bd4 33.fxe5 fxe5 34.Ng3 Rc8 35.Nf5 Rc1+ 36.Kh2 Bg1+ 37.Kh3 Bb6 38.g3 h6 39.Nxh6+ Kg7 40.Nxf7 Bc7 41.Ng5 Kf6 42.Ne4+ Kg6 43.Rc2 Rxc2 44.Bxc2 1-0
2024.05.21 Titled Tue 21st May Late
535626 FM Grave, Jacob Templen (2286) GM Obregon Rivero, J (2483) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 9.O-O-O Be7 10.Qd3 h6 11.Bd2 a6 12.Nd4 Rc8 13.Kb1 Qc7 14.f3 Bd7 15.g4 b5 16.a3 Qc4 17.h4 g6 18.Rhg1 e5 19.Nb3 Qxd3 20.cxd3 Be6 21.Nc1 Nd7 22.f4 exf4 23.Bxf4 Ne5 24.d4 Nxg4 25.d5 Bd7 26.h5 gxh5 27.N1e2 h4 28.Nd4 Nf2 29.Rdf1 Nh3 30.Rh1 Nxf4 31.Rxf4 Rg8 32.Nf5 Bxf5 33.Rxf5 Rg4 34.e5 Rg5 35.Rxg5 hxg5 36.exd6 Bxd6 37.Ne4 Bf4 38.d6 f5 39.Rd1 fxe4 40.d7+ Kd8 41.dxc8=Q+ Kxc8 42.Kc2 h3 43.Rh1 h2 44.Kd1 g4 45.Ke2 Kd7 46.Kf2 Ke6 47.Kg2 Ke5 48.Rd1 e3 49.Rd7 Ke4 50.Re7+ Be5 51.b4 e2 52.Kf2 h1=Q 0-1
2024.05.21 Titled Tue 21st May Late
536918 GM Obregon Rivero, J (2483) GM Gorovets, A (2480) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O Nge7 8.Bg5 h6 9.Bh4 b5 10.Bxb5 axb5 11.Nxb5 d5 12.exd5 Ba6 13.a4 exd5 14.Bg3 Bxb5 15.axb5 Nb4 16.Qb3 Nf5 17.Rfe1+ Be7 18.Rxa8 Qxa8 19.Qxb4 O-O 20.Rxe7 Nxe7 21.Qxe7 Qa1+ 22.Qe1 Qxb2 23.Qf1 Rc8 24.Be5 Qa3 25.Bf4 Rc4 26.Be3 Qb4 27.b6 f5 28.g3 g5 29.Qd1 Qb5 30.Qa1 f4 31.gxf4 gxf4 32.Bd4 Qc6 33.Ne1 Rc1 34.Qa5 Qg6+ 35.Kf1 Qd3+ 36.Kg2 Qe4+ 37.f3 Qe2+ 38.Bf2 1-0
2024.05.21 Titled Tue 21st May Late
536421 GM Obregon Rivero, J (2483) GM Santos Latasa, J (2626) 1-0
1.Nf3 c5 2.e4 Nc6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 h5 6.Bc4 e6 7.Ndb5 d6 8.Bf4 e5 9.Bg5 a6 10.Na3 Be7 11.Bxf6 Bxf6 12.Nd5 Bg5 13.O-O b5 14.Bb3 Be6 15.c3 g6 16.Nc2 O-O 17.g3 Bh6 18.f4 exf4 19.gxf4 Kh7 20.Nd4 Na5 21.f5 Bd7 22.Kh1 Qh4 23.Qf3 Nc6 24.Nb6 Ne5 25.Qg2 Rad8 26.Nxd7 Rxd7 27.Nf3 Nxf3 28.Qxf3 g5 29.f6 Rc7 30.Qf5+ Kh8 31.e5 dxe5 32.Bc2 e4 33.Bxe4 1-0
2024.05.21 Titled Tue 21st May Late
537214 GM Le, Quang Liem (2731) GM Obregon Rivero, J (2483) 1-0
1.c4 Nf6 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.d4 cxd4 7.Nxd4 Nc6 8.O-O Qb6 9.e3 d6 10.b3 Bd7 11.Nde2 Rfc8 12.h3 Rab8 13.e4 a6 14.Be3 Qa5 15.a4 Qd8 16.Qd2 Ne5 17.f4 Nc6 18.Rad1 Na5 19.e5 Ne8 20.Nc1 Bc6 21.Qf2 b6 22.Rd3 Qc7 23.Bxc6 Qxc6 24.Nd5 Rb7 25.Bxb6 e6 26.Bxa5 exd5 27.Rxd5 dxe5 28.fxe5 Qe6 29.Nd3 Qxh3 30.Nc5 Re7 31.Bd8 Rxd8 32.Rxd8 Bxe5 33.Rxe8+ Kg7 34.Ne4 Rxe8 35.Qxf7+ Kh6 36.Qxe8 Bd4+ 37.Rf2 Qg4 38.Qf8+ Kh5 39.Nf6+ Bxf6 40.Qxf6 Qxg3+ 41.Rg2 Qe1+ 42.Qf1 Qe3+ 43.Qf2 Qxb3 44.Rh2+ Kg5 45.Qh4+ Kf5 46.Rf2+ Ke5 47.Qf4+ Ke6 48.Qf6+ Kd7 49.Rd2+ Kc7 50.Qd8+ Kc6 51.Qd6+ Kb7 52.Qd7+ Kb6 53.Rd6+ Ka5 54.Qc7+ Kxa4 55.Rxa6+ Kb4 56.Rb6+ Kc3 57.Rxb3+ Kxb3 58.c5 1-0
2024.05.21 Titled Tue 21st May Late
536210 GM Obregon Rivero, J (2483) IM Perske, Thore (2450) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 cxd4 8.Nxd4 Qb6 9.Qd2 Qxb2 10.Rb1 Qa3 11.Ncb5 Qxa2 12.Rb3 Rb8 13.Be2 a6 14.Nd6+ Bxd6 15.exd6 Nc5 16.Nxc6 Nxb3 17.Qb4 bxc6 18.Qxb8 O-O 19.Qxb3 Qa1+ 20.Bd1 a5 21.Bc5 Bd7 22.O-O a4 23.Qa3 Qxa3 24.Bxa3 Rb8 25.Be2 f6 26.Kf2 c5 27.Bxc5 Rc8 28.Ba3 Rxc2 29.Rc1 Rxc1 30.Bxc1 Kf7 31.Bb2 h6 32.Ke3 g5 33.g3 Bc6 34.Kd4 Ke8 35.Kc5 1-0
2024.05.21 Titled Tue 21st May Late
535980 FM Aggelis, N (2285) GM Obregon Rivero, J (2483) 0-1
1.e4 c5 2.Nc3 e6 3.f4 d5 4.Bb5+ Bd7 5.exd5 Bxb5 6.Nxb5 exd5 7.Qe2+ Be7 8.Nf3 Nf6 9.O-O O-O 10.d4 Nc6 11.a4 a6 12.Nc3 cxd4 13.Nd1 Bc5 14.Nf2 Re8 15.Qd1 d3 16.cxd3 Qb6 17.a5 Qa7 18.b4 Bxf2+ 19.Rxf2 Ng4 20.d4 Nxf2 21.Kxf2 Re4 22.Be3 Rae8 23.Ra3 Nxb4 24.Ne5 Nc6 25.Qa4 Qa8 26.Rc3 Nxe5 27.fxe5 R8xe5 28.Qd7 Re8 29.Qxd5 h6 30.Rc7 R4e7 31.Rc3 Qb8 32.g3 b6 33.Bf4 Qa7 34.axb6 Qxb6 35.Kf3 Qb1 36.Re3 Qh1+ 0-1
2024.05.21 Titled Tue 21st May Late
536515 FM Hamidi, Amir Mohammad (2209) GM Obregon Rivero, J (2483) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f3 d6 6.Be3 c5 7.Nge2 cxd4 8.Nxd4 Nc6 9.Qd2 Nxd4 10.Bxd4 Bd7 11.Be2 Bc6 12.O-O a5 13.b3 Nd7 14.Be3 Nc5 15.Rac1 Qb6 16.Rc2 Rfc8 17.Rb1 Qb4 18.Qc1 Qb6 19.Qd2 Qb4 20.Qc1 Qb6 21.Qd2 1/2-1/2
2024.05.21 Titled Tue 21st May Late
535786 GM Obregon Rivero, J (2483) IM Domalchuk-Jonasson, Aleksandr (2368) 0-1
1.e4 Nc6 2.Nf3 d5 3.exd5 Qxd5 4.Nc3 Qa5 5.h3 Nf6 6.Bc4 Bf5 7.d3 e6 8.Bd2 Qc5 9.O-O a6 10.a3 b5 11.b4 Qd6 12.Bb3 Be7 13.Nh4 Bg6 14.Nxg6 hxg6 15.Re1 Nd4 16.Ba2 Rh4 17.Ne2 Rd8 18.Nxd4 Qxd4 19.Qf3 Kf8 20.Qc6 Bd6 21.Qxa6 Bh2+ 22.Kf1 Bf4 23.Rad1 Bxd2 24.Rxd2 Ne4 0-1
2024.05.21 Titled Tue 21st May Late
536810 GM Kazakouski, Valery (2603) GM Obregon Rivero, J (2483) 0-1
1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O c5 6.d4 cxd4 7.Nxd4 Nc6 8.Nc3 Qb6 9.Nc2 d6 10.e4 Bg4 11.Qd2 Rac8 12.h3 Be6 13.b3 a6 14.Rb1 Rfd8 15.Nd5 Bxd5 16.exd5 Ne5 17.Bb2 Qc7 18.Ne3 b5 19.Rfc1 Qb8 20.Bxe5 dxe5 21.c5 e4 22.c6 Bh6 23.Qb4 Bxe3 24.fxe3 Qxg3 25.Qxe7 Qxe3+ 26.Kh1 Nxd5 27.Qxe4 Qxe4 28.Bxe4 b4 29.Rc4 Nc3 30.Rc1 Nxe4 31.Rxe4 Rd6 32.c7 Rd7 33.Rec4 a5 34.R1c2 f5 35.Kg2 Kf7 36.h4 Ke6 37.Kf3 Rd3+ 38.Ke2 Rc3 39.R2xc3 bxc3 40.Rxc3 Kd6 41.Rd3+ Kxc7 42.Rd5 Kb6 43.a4 Rc7 44.h5 Rf7 45.hxg6 hxg6 46.Rd6+ Kc5 47.Rxg6 Kd4 48.Rb6 Ke4 49.Re6+ Kf4 50.Ra6 Rb7 51.Rxa5 Rxb3 52.Rb5 Ra3 53.Rb4+ Kg3 54.Kd2 f4 55.Rb5 Rxa4 0-1
2024.05.21 Titled Tue 21st May Late
537070 GM Tari, A (2634) GM Obregon Rivero, J (2483) 1-0
1.e4 c5 2.Nc3 Nc6 3.f4 e6 4.Nf3 d5 5.exd5 exd5 6.Bb5 Ne7 7.Qe2 Qd6 8.d4 cxd4 9.Nxd4 a6 10.Ba4 Bd7 11.Be3 g6 12.Nxc6 bxc6 13.Bd4 f6 14.O-O-O Kf7 15.Bb3 Be6 16.Kb1 Nf5 17.Bxf6 Kxf6 18.Ne4+ dxe4 19.Rxd6 Nxd6 20.Bxe6 Kxe6 21.g4 Be7 22.Rd1 Rhf8 23.Qe3 Kd7 24.Qxe4 Rae8 25.Qa4 Bd8 26.a3 a5 27.Rd3 Bb6 28.Ka2 Kc7 29.Rc3 c5 30.Rd3 Re4 31.Qb3 c4 32.Qc3 Rfxf4 33.Rd5 Rd4 34.Re5 Rfe4 35.Rxe4 Nxe4 36.Qf3 c3 37.Qf7+ Kc6 38.Qxh7 Rd6 39.b4 axb4 40.axb4 Kd5 41.Qf7+ Ke5 42.Qe7+ Re6 43.Qg7+ Kd6 44.Kb3 Kd5 45.Qd7+ Rd6 46.Qb5+ Ke6 47.Qe8+ Kf6 48.Qxe4 Bd4 49.h4 Be5 50.g5+ Ke6 51.Qxg6+ Kd5 52.Qf7+ Ke4 53.g6 Rd1 54.g7 Rb1+ 55.Kc4 1-0
2024.04.23 Titled Tue 23rd Apr Late
567854 GM Obregon Rivero, J (2496) WCM Novikova, M (1999) 1-0
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.Nf3 Nf6 5.d4 c6 6.g3 Bg4 7.Bg2 e6 8.h3 Bh5 9.Bf4 Qd8 10.O-O Bd6 11.Bxd6 Qxd6 12.g4 Bg6 13.Qe2 Nbd7 14.Rad1 O-O-O 15.Ne5 Qc7 16.f4 Qb6 17.Na4 Qb4 18.b3 Nxe5 19.c3 Qa5 20.fxe5 Nd5 21.c4 Nb6 22.Nc5 Qc3 23.Rf3 Qb4 24.Kh2 h5 25.g5 Nd7 26.Ne4 Nxe5 27.dxe5 Rxd1 28.Qxd1 Bxe4 29.Rxf7 Rd8 30.Qf1 Qd2 31.Qf2 Qxf2 32.Rxf2 Bxg2 33.Kxg2 Rd3 34.Rf7 Re3 35.Rxg7 Rxe5 36.h4 Re2+ 37.Kg3 Rxa2 38.Rh7 Ra3 39.g6 Rxb3+ 40.Kf4 Rb1 41.g7 Rf1+ 42.Ke5 1-0
2024.04.23 Titled Tue 23rd Apr Late
568430 GM Obregon Rivero, J (2496) WFM Contreras Huaman, Fiorella (2012) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.Be2 Bc5 7.O-O Nd7 8.Rd1 Bd4 9.Qg3 Ne7 10.d3 O-O 11.Bf1 f5 12.Ne2 Bf6 13.exd5 exd5 14.d4 Ng6 15.Nf4 Bh4 16.Qf3 Nxf4 17.Bxf4 Qf6 18.c3 Rae8 19.Re1 Qg6 20.Bd3 Nf6 21.Bd6 Ne4 22.Bxf8 Bxf2+ 23.Kh2 Bg3+ 24.Kg1 Bxe1 25.Rxe1 Rxf8 26.Qf4 Qf6 27.Rf1 g6 28.Qc7 Qf7 29.Qe5 Qg7 30.Qe6+ Qf7 31.Qe5 Qg7 32.Qf4 Qe7 33.Re1 Kg7 34.Re2 Rf7 35.Re1 Qf6 36.Rf1 Qg5 37.Qe5+ Qf6 38.Qf4 Qd6 39.Qe3 Qg3 40.Rf3 Qg5 41.Rf4 Qg3 42.Rxe4 fxe4 43.Qxg3 exd3 44.Qxd3 Re7 45.Kh2 b6 46.Qg3 Kf6 47.Qh4+ Ke6 48.Qf4 Rf7 49.Qe5+ Kd7 50.b4 Re7 51.Qf6 Re6 52.Qh8 Re7 53.b5 cxb5 54.Qf8 Kd6 55.Qf4+ Kd7 56.Qf6 Re6 57.Qf7+ Kd6 58.Qxa7 Kc6 59.Qa8+ Kc7 60.Qa7+ Kc6 61.Qxh7 b4 62.cxb4 Kb5 63.Qd7+ Kxb4 64.Qxe6 1-0
2024.04.23 Titled Tue 23rd Apr Late
568696 GM Obregon Rivero, J (2496) CM Mizzi, Jack (2051) 0-1
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Bc4 Bd6 7.Qe2+ Qe7 8.Qxe7+ Bxe7 9.O-O O-O 10.Re1 Bd6 11.d4 Bg4 12.Nd2 Nd7 13.Ne4 Bc7 14.c3 Rfe8 15.Bd2 Rad8 16.Ng3 Nf8 17.a3 Rxe1+ 18.Rxe1 Be6 19.Bf1 a5 20.Bc1 a4 21.Ne4 Nd7 22.Nd2 c5 23.Nf3 Bd5 24.Bb5 Bc6 25.Bxc6 bxc6 26.Be3 c4 27.Nd2 Nb6 28.g3 Kf8 29.f3 f5 30.Bf2 f6 31.Re6 Rd6 32.Rxd6 Bxd6 33.d5 c5 34.Kf1 Ke7 35.Ke2 Kd7 36.Kd1 Kc7 37.Kc2 Kb7 38.h3 Ka6 39.g4 g6 40.gxf5 gxf5 41.Bh4 Be5 42.d6 Bxd6 43.Bxf6 Bf4 44.Nf1 Nd5 45.Bh4 Kb7 46.Bf2 Kc6 47.Bg3 Bg5 48.Kb1 Ne3 49.Nh2 f4 50.Bf2 Kd5 51.Kc1 Nf5 52.Kd2 Ng3 53.Ke1 h5 54.Kd2 h4 55.Ng4 Nf5 56.Ke2 Ng3+ 57.Kd2 Nf5 58.Bg1 Nd6 59.Nf2 Nf5 60.Ne4 Be7 61.Bf2 Ng3 62.Bxg3 fxg3 63.Ke2 Ke5 64.Nd2 Kd5 65.Ne4 Bf8 66.Nf6+ Kc6 67.f4 Bh6 68.Nh5 Kd5 69.Kf3 Ke6 70.Kg2 Kf5 71.Kf3 Kg6 72.Nxg3 hxg3 73.Kxg3 Kf5 74.Kf3 Bxf4 75.Ke2 Bc1 76.Kd1 Bxb2 77.Kc2 Bxa3 78.Kb1 Kf4 79.Kc2 Kg3 80.Kb1 Kxh3 81.Ka2 Bc1 82.Kb1 Bh6 83.Ka2 Bg7 84.Ka3 Bxc3 85.Kxa4 Bb4 86.Kb5 c3 0-1
2024.04.23 Titled Tue 23rd Apr Late
568191 CM Buker, M (1899) GM Obregon Rivero, J (2496) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.Re1 Nc7 12.a4 b6 13.Bf1 Rb8 14.Nc4 Ba6 15.Bf4 Bxc4 16.Bxc4 Nh5 17.Be3 Bxc3 18.bxc3 Rxe4 19.Be2 Rxe3 20.fxe3 Nf6 21.Bf3 Qe7 22.c4 a5 23.Rb1 Na6 24.e4 Nd7 25.Be2 Ne5 26.Bf1 Nb4 27.Qd2 Kg7 28.Kh1 f6 29.h3 Rf8 30.Kh2 Qd7 31.Rb3 Qxa4 32.Rg3 Qd7 33.h4 Qe7 34.h5 g5 35.Kg1 h6 36.Qf2 Qf7 37.Qf5 Qxh5 38.Qe6 Qh4 39.Rge3 Nc2 40.R1e2 Nxe3 41.Rxe3 Ng4 42.Rh3 Qf2+ 43.Kh1 Qxf1# 0-1
2024.04.23 Titled Tue 23rd Apr Late
568463 FM Stillger, B (2256) GM Obregon Rivero, J (2496) 0-1
1.Nf3 Nf6 2.g3 g6 3.b3 Bg7 4.Bb2 c5 5.Bg2 O-O 6.c4 Nc6 7.O-O d6 8.d4 cxd4 9.Nxd4 Qb6 10.Nc2 Be6 11.Nc3 Bxc4 12.bxc4 Qxb2 13.Nd5 Nxd5 14.cxd5 Ne5 15.Rb1 Qxa2 16.Rxb7 Rfe8 17.Nb4 Qb2 18.Qb1 Qxe2 19.Nc6 Nf3+ 20.Kh1 Nd2 21.Qd1 Qa6 22.Rc7 Nxf1 23.Bxf1 Qb6 24.Nxe7+ 0-1
2024.04.23 Titled Tue 23rd Apr Late
568001 GM Obregon Rivero, J (2496) CM Harish, Neeraj (2213) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 e5 5.g3 d6 6.h3 O-O 7.Bg2 Nc6 8.O-O h6 9.Rb1 a5 10.a3 Nd7 11.b4 axb4 12.axb4 f5 13.Nh4 Qf6 14.Nd5 Qf7 15.Nxc7 Rb8 16.exf5 gxf5 17.Bd5 1-0
2024.03.31 LXIX Mexican Open 2024
591031 GM Obregon Rivero, J (2496) GM Espinosa Veloz, E (2484) 0-1
1.e4 e6 2.d3 d5 3.Nd2 c5 4.Ngf3 Nc6 5.g3 Bd6 6.Bg2 Nge7 7.O-O O-O 8.Re1 Qc7 9.Nh4 b5 10.f4 f6 11.c3 Rb8 12.Qh5 d4 13.Ndf3 e5 14.Rf1 Bd7 15.fxe5 Nxe5 16.Nxe5 Bxe5 17.Bf4 Nc6 18.Rac1 Be6 19.a3 Qd7 20.Qe2 Rbd8 21.Nf3 dxc3 22.Bxe5 fxe5 23.Rxc3 c4 24.dxc4 Bxc4 25.Rxc4 bxc4 26.Qxc4+ Kh8 27.Rc1 Rc8 28.Ng5 Ne7 29.Nf7+ Rxf7 0-1
2024.03.30 LXIX Mexican Open 2024
591010 GM Obregon Rivero, J (2496) FM Gracia Alvarez, Gerardo Antonio (2233) 1/2-1/2
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.c4 Be7 5.O-O O-O 6.b3 b6 7.Bb2 Bb7 8.e3 dxc4 9.bxc4 c5 10.d3 Qc8 11.Qe2 Rd8 12.Nc3 Nc6 13.Ne1 a6 14.f4 Rb8 15.g4 b5 16.g5 Ne8 17.Rf3 Nd6 18.Rh3 g6 19.Ne4 Nxe4 20.Bxe4 e5 21.Qf3 bxc4 22.Bc3 cxd3 23.Bxd3 Rxd3 24.Nxd3 Nd4 25.Qf1 Ne2+ 26.Qxe2 Qxh3 27.Nxe5 Qf5 28.Qd3 Qh3 29.Qe2 Qf5 30.Qd3 Qh3 31.e4 Qxd3 32.Nxd3 c4 33.Nf2 Bc8 34.Rd1 Be6 35.Kf1 Bc5 36.Ke2 Kf8 37.h3 Bb4 38.Rb1 Bd6 39.Rxb8+ Bxb8 40.Ke3 Ke7 41.Ng4 Bxg4 42.hxg4 Kd7 43.e5 Ba7+ 44.Bd4 Bb8 45.Ke4 Bc7 46.Bc3 Bb6 47.a4 Kc6 48.Bd2 Bc5 49.f5 Bf2 50.Bb4 Kd7 51.Bd2 Bg3 52.Bf4 Be1 53.Kd4 c3 54.Kd3 Kc6 55.Ke2 Bh4 56.Kd1 Bf2 57.Kc2 Bd4 58.Kd3 Kd5 59.e6 fxe6 60.f6 e5 61.f7 e4+ 62.Ke2 Bg7 63.Ke3 Bd4+ 64.Ke2 Bc5 65.Be3 Bf8 66.Kd1 Bg7 67.Kc2 Ke6 68.Bd4 Bf8 69.Kxc3 Kxf7 70.Be3 Bg7+ 71.Bd4 h5 72.gxh6 Bxh6 73.Bg1 Bg7+ 74.Kc4 Ke6 75.Be3 Be5 76.Kc5 Bc3 77.Kc4 Be5 78.Kc5 Bc3 79.Kc4 Bb2 80.Bf4 Ba1 81.Kc5 Bc3 82.Kc4 Be5 83.Bd2 Kd6 84.Bb4+ Kc6 85.Bd2 Bf6 86.Bf4 Kb6 87.Bd2 Kc6 88.Bf4 Bb2 89.Be3 Be5 90.Bd2 Kd6 91.Be3 Ke6 92.Bd2 Bb2 93.Bf4 Bf6 94.Bd2 Kd6 95.Bf4+ Kc6 96.Be3 Bb2 97.Bf4 Kb6 98.Bd2 Ba1 99.Kd5 e3 100.Bxe3+ Ka5 101.Ke6 Kxa4 102.Kf7 Kb5 103.Bd2 a5 104.Bxa5 Kxa5 105.Kxg6 Kb6 106.Kf7 Kc7 107.g5 Kd7 108.g6 Bb2 109.Kf8 Ke6 110.g7 Bxg7+ 111.Kxg7 Ke5 1/2-1/2
2024.03.30 LXIX Mexican Open 2024
591023 IM Tamames Soria, Cesar Manuel (2227) GM Obregon Rivero, J (2496) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.h3 g6 7.Be3 Bg7 8.Be2 O-O 9.O-O Bd7 10.Nb3 a5 11.a4 Nb4 12.f4 Bc6 13.Bf3 Nd7 14.Nd4 Nb6 15.b3 Rc8 16.Rc1 Bd7 17.Qd2 Na8 18.Nd5 Nc6 19.c4 Nxd4 20.Bxd4 Bxd4+ 21.Qxd4 Be6 22.Nc3 Rc5 23.Rcd1 Qb6 24.Rd3 f6 25.Nd5 Bxd5 26.exd5 Rc7 27.Re1 Kf7 28.Bg4 f5 29.Bd1 Qxd4+ 30.Rxd4 h5 31.Rd3 Rcc8 32.g4 hxg4 33.hxg4 Rh8 34.Kg2 Nc7 35.Rh3 Rxh3 36.Kxh3 e6 37.dxe6+ Nxe6 38.Kg3 Nd4 39.Bf3 fxg4 40.Bxb7 Rb8 41.Bd5+ Kf6 42.Kxg4 Rxb3 43.c5 Ra3 44.cxd6 Nf5 45.Bf3 Nxd6 46.Rd1 Nf5 47.Rc1 Ne3+ 48.Kg3 Rxa4 49.Rc6+ Kg7 50.Ra6 Nf5+ 51.Kf2 Rxf4 52.Rxa5 g5 53.Ra7+ Kf6 54.Ra6+ Kf7 55.Ra7+ Ke6 56.Ra6+ Ke7 57.Ra7+ Kd6 58.Ra6+ Kc7 59.Rg6 Nd4 60.Rxg5 Rxf3+ 61.Kg2 Rd3 62.Rg8 Kd6 63.Kf2 Ke5 64.Re8+ Kf4 65.Rf8+ Nf5 66.Ke2 Rd7 67.Re8 Ng3+ 68.Kf2 Ne4+ 69.Ke2 Rd2+ 70.Ke1 Rd3 71.Rh8 Rd7 72.Rh3 Re7 73.Ra3 Nc3+ 74.Kf2 Re2+ 75.Kf1 Rc2 76.Ra8 Ke3 77.Re8+ Ne4 78.Kg1 Rc6 79.Kg2 Rg6+ 80.Kh3 Kf3 81.Kh2 Rg2+ 82.Kh3 Rg3+ 83.Kh4 Rg4+ 84.Kh3 Nf2+ 0-1
2024.03.29 LXIX Mexican Open 2024
590984 GM Obregon Rivero, J (2496) FM Hidalgo Diaz, Daniel (2339) 1-0
1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 Nbd7 7.Bb2 c6 8.Nc3 b6 9.d4 Ba6 10.Nd2 b5 11.e4 bxc4 12.bxc4 Nb6 13.e5 Nfd7 14.c5 Nc4 15.Nxc4 Bxc4 16.Re1 Rb8 17.Na4 Re8 18.Bc3 Bb5 19.Nb2 f5 20.Nd3 Qc8 21.Nb4 a5 22.Nc2 Ba4 23.Qd2 Qa6 24.Na3 Bd8 25.Bf1 Qa7 26.Rac1 Bc7 27.Bd3 Rf8 28.Kh1 Kh8 29.Rg1 Bd8 30.g4 f4 31.g5 g6 32.Rg4 Kg7 33.Rcg1 Be7 34.Nc2 Bxc2 35.Bxc2 Nxc5 36.dxc5 Bxc5 37.Rf1 Bb4 38.Rh4 Qc5 39.Qd3 Rb7 1-0
2024.03.29 LXIX Mexican Open 2024
590994 IM Sanchez L, S (2400) GM Obregon Rivero, J (2496) 1-0
1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nc6 5.c4 Nf6 6.d4 cxd4 7.Nxd4 O-O 8.Nc3 Qb6 9.Nc2 d6 10.b3 Be6 11.e4 Rfc8 12.Nd5 Qd8 13.Bg5 Ng4 14.Rc1 Bh6 15.Bxh6 Nxh6 16.Qd2 Kg7 17.h3 f6 18.f4 Rab8 19.Nce3 Nf7 20.Rfd1 Qf8 21.b4 b6 22.a3 Ncd8 23.Qb2 Bd7 24.Rd2 Nb7 25.Bf1 Qd8 26.h4 a6 27.Rdc2 e6 28.Nc3 b5 29.cxb5 Qb6 30.Kf2 axb5 31.Kf3 Re8 32.Bh3 Bc6 33.Ncd5 Bxd5 34.exd5 e5 35.Be6 exf4 36.gxf4 Nbd8 37.Ng4 Nxe6 38.Qxf6+ Kg8 39.Qb2 1-0
2024.03.28 LXIX Mexican Open 2024
590958 GM Obregon Rivero, J (2496) GM Czebe, A (2344) 1-0
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 a5 5.g3 O-O 6.Bg2 Ne4 7.Bxb4 axb4 8.Qc2 d5 9.O-O Nc6 10.Rd1 Qf6 11.e3 Ra6 12.Nbd2 Nxd2 13.Nxd2 Rd8 14.Rdc1 Qe7 15.Nb3 Ra7 16.Nc5 b6 17.Nd3 dxc4 18.Qxc4 Ba6 19.Qb3 Bxd3 20.Qxd3 Nb8 21.Qc4 g6 22.Rd1 Nd7 23.Rd2 Nf6 24.Bc6 e5 25.Rad1 e4 26.Kg2 Ra5 27.d5 Ng4 28.d6 Rxd6 29.Rxd6 cxd6 30.Bxe4 d5 1-0
2024.03.28 LXIX Mexican Open 2024
590969 IM Sanchez Enriquez, O (2286) GM Obregon Rivero, J (2496) 1-0
1.d4 Nf6 2.Nf3 e6 3.Bg5 h6 4.Bxf6 Qxf6 5.e4 g5 6.c3 Bg7 7.Na3 d6 8.Nc4 Qe7 9.Bd3 f5 10.Qe2 f4 11.e5 d5 12.Ncd2 Nd7 13.g4 fxg3 14.Bg6+ Kd8 15.fxg3 Nf8 16.Bh5 Bd7 17.O-O Be8 18.Ne1 Ng6 19.Nd3 Rf8 20.Rxf8 Bxf8 21.Rf1 Bg7 22.Qg4 b6 23.h4 Nh8 24.Bxe8 Kxe8 25.Nf3 Nf7 26.Qh5 Kd7 27.Nxg5 Nxg5 28.hxg5 Rf8 29.Rxf8 Bxf8 30.g6 Qg5 31.Qxg5 hxg5 32.Kg2 g4 33.Nf2 Ke8 34.Nxg4 Be7 35.Nf6+ Kf8 36.Nh5 c5 37.Nf4 Kg7 38.Nxe6+ Kxg6 39.Nf4+ Kf5 40.Kf3 Bg5 41.g4# 1-0
2024.03.27 LXIX Mexican Open 2024
590946 FM Gonzalez Arroyo, L (2189) GM Obregon Rivero, J (2496) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.O-O Be7 8.Be3 O-O 9.Bb3 Na5 10.f4 Nxb3 11.axb3 Bd7 12.e5 Ne8 13.Qf3 Qc8 14.Rfd1 f6 15.Qg3 Kh8 16.Ne4 Qc7 17.exf6 gxf6 18.c4 Rg8 19.Qf2 a6 20.f5 e5 21.Ne2 b5 22.N2c3 Qb7 23.cxb5 Bxb5 24.Nxb5 Qxb5 25.Nc3 Qxb3 26.Nd5 Bd8 27.Qf3 Nc7 28.Nb6 Rb8 29.Ra3 Qxb2 30.Nc4 Qc2 31.Nxd6 Rg7 32.Kf1 Rxg2 33.Bh6 Rg7 34.Rad3 Re7 35.Qg4 Qa2 36.Qh5 Qg8 37.Rf3 Ne8 38.Rg3 Ng7 39.Qe2 Bc7 40.Qxa6 Rb6 41.Bxg7+ Rxg7 42.Rxg7 Rxa6 43.Rxg8+ Kxg8 44.Ne4 Kf8 45.Rd7 Rc6 46.Rxh7 Bd8 47.Ke2 Be7 48.Kd3 Rc1 49.Ng3 Rd1+ 50.Ke2 Rd4 51.Nh5 Rh4 52.Nxf6 Bxf6 0-1
2024.03.26 LXIX Mexican Open 2024
590934 GM Obregon Rivero, J (2496) Vega Castaneda, U (1924) 1-0
1.d4 d5 2.c4 Nc6 3.Nf3 Bg4 4.e3 e6 5.Nc3 Nf6 6.h3 Bxf3 7.Qxf3 Bb4 8.Bd3 e5 9.cxd5 Qxd5 10.Qxd5 Nxd5 11.Bd2 O-O-O 12.a3 exd4 13.axb4 dxc3 14.bxc3 Nxe3 15.Bxe3 Rxd3 16.b5 Nb8 17.Rxa7 Rhd8 18.O-O Rd1 19.Ra8 b6 20.Ra7 Rxf1+ 21.Kxf1 Re8 22.Bf4 Re7 23.f3 Rd7 24.Ke2 c5 25.Bxb8 1-0
2023.11.12 ch-Mexico City 2023
750412 GM Obregon Rivero, J (2483) GM Gonzalez Zamora, J (2484) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.O-O Bg7 8.Nb3 O-O 9.Re1 b6 10.Bf1 Bb7 11.Nd5 e6 12.Nxf6+ Bxf6 13.c3 Qc7 14.Bf4 e5 15.Bh6 Bg7 16.Qd2 Rad8 17.Bg5 f6 18.Bh4 Ne7 19.c4 h6 20.f3 g5 21.Bf2 f5 22.exf5 Nxf5 23.Bd3 Nh4 24.Be4 Bxe4 25.Rxe4 Ng6 26.a4 Nf4 27.a5 d5 28.cxd5 Rxd5 29.axb6 axb6 30.Qc3 Qf7 31.Rf1 Qg6 32.Kh1 Kh7 33.Qc2 Rf6 34.Rc4 Qd3 35.Nd2 e4 36.fxe4 Rd7 37.e5 Qxc2 38.Rxc2 Re6 39.h3 Nd3 40.Nf3 Nxf2+ 41.Rcxf2 Rd5 42.Re2 Kg6 43.Rfe1 b5 44.Re4 h5 45.g3 Bh8 46.Kg2 Bg7 47.R1e2 Bh8 48.b3 Bg7 49.Rd4 Rxd4 50.Nxd4 Rxe5 51.Rxe5 Bxe5 52.Nxb5 Kf5 53.Na3 g4 54.Nc4 Bd4 55.b4 Ke6 56.hxg4 hxg4 1/2-1/2
2023.11.11 ch-Mexico City 2023
750376 GM Obregon Rivero, J (2483) FM Diaz Rosas, J (2343) 1-0
1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3 Bb4+ 6.c3 Be7 7.Bf4 d6 8.N1d2 Nf6 9.Be2 O-O 10.O-O Re8 11.Re1 Bf8 12.Qc2 Bg4 13.Bxg4 Nxg4 14.h3 Nf6 15.Rad1 Nd7 16.Bg3 a5 17.a4 Qb8 18.Nd4 Be7 19.Nf5 Qa7 20.Nc4 Bf8 21.Na3 Rad8 22.Nb5 Qb8 23.Bh4 Rc8 24.f4 Nc5 25.Bf2 Ne6 26.Qd2 Rcd8 27.Ng3 Nc5 28.Qc2 Ne6 29.Nh5 b6 30.Rd3 Kh8 31.Rg3 Rd7 32.b4 f6 33.Qb3 Ncd8 34.Nd4 Rf7 35.Nxe6 Rxe6 36.f5 Re8 37.bxa5 Qa8 38.axb6 cxb6 39.Bxb6 d5 40.Rd1 Rb7 41.Rxd5 Nf7 42.Rb5 Rxe4 43.Bf2 Rxb5 44.axb5 Qe8 45.b6 Nh6 46.Qd5 Re5 47.Qd1 Bc5 48.Bxc5 Re1+ 49.Qxe1 Qxe1+ 50.Kh2 Qe5 51.Bd4 Qb8 52.Nxg7 Kg8 53.Be3 Ng4+ 54.hxg4 Kxg7 55.c4 Kf7 56.c5 Qc8 57.Rh3 Kg7 58.Bg1 Qc6 59.Kh1 Qe4 60.Rc3 Qb4 61.Rd3 Qxg4 62.b7 Qh4+ 63.Rh3 Qf4 64.c6 Qb8 65.Bh2 1-0
2023.11.11 ch-Mexico City 2023
750394 IM Figueredo Losada, L (2373) GM Obregon Rivero, J (2483) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.Nc3 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 Qa5 9.f3 d6 10.Qd2 Nxd4 11.Bxd4 Be6 12.O-O-O Rfc8 13.Kb1 b5 14.Bxf6 Bxf6 15.Nd5 Qxd2 16.Nxf6+ Kg7 17.Nh5+ Kh6 18.Rxd2 Kxh5 19.Re1 1/2-1/2
2023.11.10 ch-Mexico City 2023
750343 FM Sandoval Mercado, Carlos (2397) GM Obregon Rivero, J (2483) 1/2-1/2
1.d4 d6 2.c4 e5 3.e3 g6 4.Nc3 Bg7 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.b3 Be6 8.Bb2 Nd7 9.O-O-O Kc8 10.Ne4 h6 11.f4 f5 12.Nf2 Ngf6 13.Nf3 e4 14.Nd4 Bf7 15.g4 fxg4 16.Rg1 a6 17.Nxg4 Nxg4 18.Rxg4 c5 19.Ne2 Bxb2+ 20.Kxb2 Nf6 21.Rg1 Kc7 22.Nc3 Rad8 23.Bh3 b6 24.Kc2 Rhe8 25.a3 Rxd1 26.Rxd1 Re7 27.a4 Be8 28.Rg1 Kb7 29.Rd1 Kc7 30.Rg1 Bf7 31.Rd1 Re8 32.Rd2 Kc6 33.Rd1 Kc7 34.Rd2 Kc6 35.Kc1 Kc7 36.Rd1 Kc6 37.Rd2 Kc7 38.Kc2 Rf8 39.Bg2 Be6 40.Kd1 Bf5 41.Ke2 Kc6 42.Ke1 Re8 43.h3 Kc7 44.Ke2 Bd7 45.Ke1 Bc6 46.Bf1 Ng8 47.Nd5+ Kb7 48.Rg2 Bxd5 49.cxd5 Nf6 50.Rxg6 Nxd5 51.Kf2 Re7 52.Rxh6 Nc3 53.Bc4 b5 54.axb5 axb5 55.Be6 Kc7 56.f5 Kd6 57.Bg8+ Ke5 58.f6 Re8 59.f7 Rf8 60.Rc6 Nd5 61.Rxc5 b4 62.Ra5 Kd6 63.Ra6+ Ke7 64.Kg3 Nxe3 65.Kf4 Nf1 66.Ke5 Rd8 67.Kxe4 Nd2+ 68.Ke3 Kf8 69.Rb6 Nxb3 70.Rxb4 Na5 71.h4 Nc6 72.Re4 Ne7 73.Rg4 Rd5 74.Ke4 Rh5 75.Kf4 Rh8 76.Ke5 Nxg8 77.fxg8=Q+ Rxg8 78.Rxg8+ Kxg8 1/2-1/2
2023.11.10 ch-Mexico City 2023
750360 GM Ibarra Chami, L (2432) GM Obregon Rivero, J (2483) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.h3 Nbd7 9.g4 h6 10.Qd2 b5 11.f3 b4 12.Na4 d5 13.exd5 Bxd5 14.Be2 Qc7 15.c4 bxc3 16.Nxc3 Bb4 17.Kf2 Qb7 18.Rhg1 Rc8 19.h4 Be6 20.Nb5 Bxd2 21.Nd6+ Ke7 22.Nxb7 Bxe3+ 23.Kxe3 Rc2 24.Rgc1 Rxb2 25.Kf2 Nd5 26.Kf1 h5 27.g5 Nf4 28.Bxa6 Ra8 29.N3c5 Bh3+ 30.Kg1 Rg2+ 31.Kf1 Rxa2+ 0-1
2023.11.09 ch-Mexico City 2023
750311 CM Limon Olmos, Ivan Alonso (2152) GM Obregon Rivero, J (2483) 0-1
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Bd7 10.Rb1 Nxd4 11.Bxd4 Bc6 12.Qd3 a5 13.b3 Nd7 14.Rfd1 f5 15.Bxg7 Kxg7 16.Qd4+ Rf6 17.exf5 gxf5 18.Rd3 e5 19.Rg3+ Kh8 20.Qh4 Qf8 21.Rh3 Qg7 22.Rg3 Qf8 23.Rh3 Qf7 24.Rd1 Rg8 25.Nd5 Rfg6 26.Rg3 f4 27.Rxg6 Qxg6 28.Bf3 Qg5 29.Qxg5 Rxg5 30.Be4 Nc5 31.f3 Ne6 32.Nc3 Nd4 33.Kf2 Kg7 34.g3 Rh5 35.Kg2 fxg3 36.hxg3 Rh6 37.Rd2 Kf7 38.Ne2 Ne6 39.Bd5 Ke7 40.Bxe6 Kxe6 41.Nc3 Kf5 42.Nd5 Ke6 43.Nc7+ Kd7 44.Nd5 b5 45.cxb5 Bxb5 46.g4 Bc6 47.Nb6+ Kc7 48.Nd5+ Kb7 49.a3 Re6 50.Kf2 Rh6 51.Kg2 Re6 52.Kf2 h5 53.gxh5 Be8 54.Ne3 Bxh5 55.Nc4 Kc7 56.Ne3 Bf7 57.Nd5+ Kc6 58.b4 axb4 59.axb4 Rh6 60.Ne7+ Kd7 61.Nf5 Rf6 62.Ne3 Bh5 63.Nc4 Kc7 64.Rd3 e4 65.Rxd6 0-1
2023.11.09 ch-Mexico City 2023
750326 GM Obregon Rivero, J (2483) IM Sanchez Enriquez, O (2297) 1-0
1.d4 Nf6 2.c4 e6 3.Nf3 a6 4.Nc3 d5 5.cxd5 exd5 6.Bg5 Be6 7.e3 Nbd7 8.Bd3 Bd6 9.O-O c6 10.h3 Qc7 1-0
2023.11.08 ch-Mexico City 2023
750289 GM Obregon Rivero, J (2483) FM Gracia Alvarez, Gerardo Antonio (2201) 1/2-1/2
1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.g3 h6 5.Bg2 Bd6 6.Qc2 O-O 7.Nbd2 c5 8.dxc5 Bxc5 9.O-O Bb6 10.c5 Bc7 11.e4 Nc6 12.a3 a5 13.b3 d4 14.Rb1 e5 15.b4 axb4 16.axb4 Be6 17.b5 Ne7 18.b6 Bb8 19.Ne1 Nc6 20.Nd3 Qe7 21.Bb2 Rc8 22.Ra1 Rxa1 23.Rxa1 h5 24.h3 h4 25.g4 Nh7 26.Ra8 Ng5 27.Nc4 Bd7 28.Ba3 Ne6 1/2-1/2
2023.11.07 ch-Mexico City 2023
750273 IM Navarro Segura, R (2055) GM Obregon Rivero, J (2483) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Be2 Be7 8.O-O O-O 9.Qd2 h6 10.Bh4 Nxd4 11.Qxd4 Nxe4 12.Nxe4 Bxh4 13.Qxd6 f5 14.Qxd8 Rxd8 15.Nc5 b6 16.Nb3 e5 17.Rad1 Be6 18.Rxd8+ Rxd8 19.Rd1 Rc8 20.c3 Kf7 21.Kf1 g6 22.Nc1 Be7 23.Bb5 h5 24.Bd7 Bc4+ 25.Ke1 Rc7 26.Ba4 Kf6 27.Rd7 Rxd7 28.Bxd7 h4 29.h3 Bd5 30.Kf1 Bf8 31.b3 Bh6 32.Nd3 Be4 33.Bb5 Bd2 34.f3 Bb7 35.c4 g5 36.c5 Bc3 37.c6 Bc8 38.Bc4 a6 39.a4 a5 40.Ke2 Ke7 41.Bb5 Kd6 42.Nf2 Be6 43.Bc4 Bxc4+ 44.bxc4 Kxc6 45.Nd3 Bd4 46.Kd2 e4 47.fxe4 fxe4 0-1
2023.04.09 LXVIII Mexican Open 2023
991575 GM Obregon Rivero, J (2493) GM Bruzon Batista, L (2611) 0-1
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.d3 O-O 6.Nbd2 c5 7.e4 Nc6 8.e5 Nd7 9.Re1 Qc7 10.Qe2 b5 11.Nf1 Bb7 12.h4 Rfc8 13.c3 Rab8 14.h5 h6 15.Bf4 Qd8 16.g4 Nf8 17.Qd2 Nh7 18.Bg3 d4 19.c4 bxc4 20.dxc4 a5 21.a4 Ba6 22.Qc1 Qb6 23.Qf4 Bxc4 24.N1d2 Bd5 25.Ne4 Nb4 26.g5 Bxe4 27.Qxe4 hxg5 28.Nd2 c4 29.Rec1 c3 30.bxc3 Rxc3 31.Nc4 Qc5 32.Rxc3 dxc3 33.Nd6 c2 34.Rc1 Qc3 35.Nxf7 Nf8 36.h6 Kxf7 37.h7 Ng6 38.Bh3 Nf4 39.Bxe6+ Kxe6 40.Bxf4 Qd3 0-1
2023.04.08 LXVIII Mexican Open 2023
991560 IM Fernandez, Li (2326) GM Obregon Rivero, J (2493) 0-1
1.d4 Nf6 2.Bf4 d5 3.Nf3 c5 4.e3 Nc6 5.Nbd2 Nh5 6.Be5 f6 7.Bg3 Qb6 8.dxc5 Qxb2 9.Rb1 Qc3 10.Bb5 Qxc5 11.c4 a6 12.Nb3 Qb4+ 13.Nbd2 Qc5 14.Nb3 Qb6 15.Bxc6+ bxc6 16.cxd5 Bf5 17.Rc1 Qb4+ 18.Nfd2 Nxg3 19.hxg3 cxd5 20.Nd4 Bg6 21.Ne6 Kf7 22.Nf4 Bf5 23.Qh5+ g6 24.Nxg6 Bxg6 25.Qxd5+ e6 26.Qxa8 Qxd2+ 27.Kxd2 Bb4+ 28.Ke2 Rxa8 29.Rc7+ Kg8 30.Rd1 Be8 31.f3 e5 32.g4 a5 33.Rd5 h6 34.f4 exf4 35.exf4 Bf7 36.Rdd7 Re8+ 37.Kf3 Bxa2 38.Rg7+ Kf8 39.Rh7 Bd5+ 40.Kg3 Re3+ 41.Kh4 Bg8 42.Rh8 Re8 43.Rxh6 Be7 44.Ra7 Bd8 45.Rh8 Re7 46.Ra8 Rd7 47.Rh5 Bd5 48.Rh8+ Bg8 49.Rh5 Bd5 50.Rh8+ Ke7 51.Rh7+ Ke6 52.Ra6+ Rd6 53.Raa7 Bxg2 54.Kh5 Bf3 55.f5+ Ke5 56.Rhd7 Rxd7 57.Rxd7 Bb6 58.Rd3 Ke4 59.Rd6 Bd4 60.Kh4 a4 61.g5 Bf2+ 62.Kh3 fxg5 63.f6 g4+ 64.Kh2 g3+ 65.Kh3 g2 66.Re6+ Kd5 67.f7 g1=Q 68.Rd6+ Ke5 0-1
2023.04.08 LXVIII Mexican Open 2023
991567 GM Obregon Rivero, J (2493) IM Leon Valdes, J (2331) 1-0
1.Nf3 Nf6 2.g3 c6 3.Bg2 d5 4.O-O g6 5.b3 Bg7 6.Bb2 O-O 7.d3 a5 8.a4 Bg4 9.h3 Bxf3 10.Bxf3 Re8 11.Nd2 e5 12.e4 d4 13.Bg2 Nbd7 14.Qe1 c5 15.Nc4 Nh5 16.Bf3 Nhf6 17.Bc1 h5 18.Bd2 b6 19.Be2 Qe7 20.f4 Nh7 21.g4 hxg4 22.Bxg4 Rab8 23.Bxd7 Qxd7 24.Qg3 Bh6 25.fxe5 Bxd2 26.Nxd2 Qe7 27.Nc4 Qg5 28.Qxg5 Nxg5 29.Kg2 Nh7 30.Rf4 Re7 31.Raf1 Rbb7 32.Nd6 Rbc7 33.h4 Kg7 34.h5 Kg8 35.hxg6 fxg6 36.Nc4 Rc6 37.Kg3 Rce6 38.Kg4 Rc6 39.Rf6 Nxf6+ 40.exf6 Rh7 41.Ne5 Rd6 42.Nxg6 Re6 43.e5 Kf7 44.Kg5 Rh2 45.Rg1 Re8 46.Kf5 Rh5+ 47.Rg5 Rxg5+ 48.Kxg5 Ke6 49.Nf4+ Kxe5 50.f7 1-0
2023.04.07 LXVIII Mexican Open 2023
991538 FM Morales Garcia, S (2232) GM Obregon Rivero, J (2493) 0-1
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 a6 7.a4 g6 8.f4 Bg7 9.Nf3 O-O 10.Bd3 Re8 11.O-O Bg4 12.h3 Bxf3 13.Qxf3 Qc7 14.Be3 Nbd7 15.Kh1 Re7 16.Bf2 Rae8 17.Rab1 c4 18.Bc2 Rb8 19.Bh4 Ree8 20.Rbe1 b5 21.axb5 axb5 22.e5 dxe5 23.f5 Kh8 24.Ne4 Nxd5 25.f6 Bh6 26.Ng5 N7xf6 27.Rd1 e4 28.Nxe4 Nxe4 29.Rxd5 f5 30.Bxe4 Rxe4 31.Bg3 Qb7 32.Rfd1 Rbe8 33.Rd7 Qb6 34.Qc3+ Kg8 35.R1d6 Qe3 36.Qf6 Rf8 37.Qc3 f4 38.Bh4 Qxc3 39.bxc3 f3 40.Bg3 fxg2+ 41.Kg1 Re2 42.Kh2 Be3 0-1
2023.04.07 LXVIII Mexican Open 2023
991547 GM Obregon Rivero, J (2493) IM Perez Garcia, Rodn (2323) 0-1
1.c4 e5 2.Nc3 d6 3.d4 exd4 4.Qxd4 Nc6 5.Qd2 Nf6 6.b3 Be6 7.e4 a5 8.Nf3 a4 9.Rb1 axb3 10.axb3 Be7 11.Be2 O-O 12.O-O Ng4 13.h3 Nge5 14.Nh2 f5 15.f4 Nd7 16.g4 fxe4 17.f5 Bf7 18.g5 e3 19.Qxe3 d5 20.Qg3 Nd4 21.Ng4 Bxg5 22.f6 Nxe2+ 23.Nxe2 Bxf6 24.Nf4 Bd4+ 25.Kh1 Nf6 26.Be3 Bxe3 27.Nxe3 Qd7 28.Rg1 Nh5 29.Qg2 d4 30.Ng4 Be8 31.Ne5 Nxf4 32.Nxd7 Nxg2 33.Nxf8 Nf4 34.Rg3 0-1
2023.04.06 LXVIII Mexican Open 2023
991516 FM Garcia Guerrero, I (2307) GM Obregon Rivero, J (2493) 0-1
1.d4 d5 2.Nf3 Nf6 3.c3 g6 4.Bf4 Nh5 5.Be5 f6 6.Bg3 c5 7.e3 Qb6 8.Qb3 Nxg3 9.hxg3 c4 10.Qc2 Bf5 11.Qc1 Bg7 12.Nbd2 Nc6 13.e4 dxe4 14.Nxc4 Qc7 15.Nfd2 h5 16.Ne3 Bh6 17.Nxf5 gxf5 18.Qd1 O-O-O 19.Nc4 e3 20.Qf3 exf2+ 21.Kxf2 e5 22.Qxf5+ Kb8 23.Kg1 b5 24.Na3 Be3+ 25.Kh2 h4 26.Nxb5 hxg3+ 27.Kxg3 Qg7+ 28.Kf3 Rxh1 29.Kxe3 Qg3+ 30.Qf3 Qxf3+ 31.gxf3 a6 32.Na3 exd4+ 33.cxd4 Nxd4 34.Rb1 Nf5+ 35.Kf4 Rd5 36.Ke4 Re5+ 37.Kd3 Re3+ 38.Kc4 Rxf1 39.Rxf1 Rxa3 40.Rf2 Re3 41.b4 Nh4 42.Kc5 Nxf3 43.Kd6 Kb7 44.a4 f5 45.Rg2 Rd3+ 46.Kc5 Rd7 47.Rg6 Nd2 0-1
2023.04.06 LXVIII Mexican Open 2023
991525 GM Obregon Rivero, J (2493) FM Sandoval Mercado, Carlos (2291) 0-1
1.c4 e6 2.Nc3 d5 3.d4 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Bd3 Re8 8.Nge2 c6 9.Qc2 Nbd7 10.f3 b5 11.O-O Nf8 12.Bh4 g6 13.a3 Ne6 14.Rad1 Bd7 15.e4 dxe4 16.fxe4 Ng4 17.Bxe7 Qxe7 18.Qd2 Qg5 19.Rf3 Qxd2 20.Rxd2 c5 21.Nd5 cxd4 22.Rg3 Ne5 23.Nf6+ Kg7 24.Nxe8+ Bxe8 25.Rd1 Rd8 26.Bb1 Bc6 27.Ba2 Nc4 28.Bxc4 bxc4 29.e5 Ba4 30.Rd2 d3 31.Nc3 Bc2 32.Rg4 Nd4 33.Rf4 Nb3 34.Rdf2 Rd7 35.Rxc4 d2 36.Rc6 d1=Q+ 37.Nxd1 Bxd1 38.Rd6 Rxd6 39.exd6 Bg4 40.Rc2 Kf6 41.Rf2+ Kg7 42.Rf4 Be6 43.Rf3 Nd4 44.Rd3 Nc6 45.d7 Nd8 46.Rc3 Kf6 47.Rc8 Ke7 48.Ra8 Kxd7 49.Rxa7+ Kd6 50.b4 Nc6 51.Ra8 Kc7 52.b5 Nb8 53.Ra4 Kb6 54.Rh4 h5 55.Rd4 Nd7 56.a4 Ka5 57.Kf2 Nb6 58.Kg3 Nxa4 59.Kf4 Kxb5 60.Ke5 Nb6 61.Rd1 Kc6 62.Kf6 Nd5+ 63.Kg7 Kd6 64.Re1 Nf4 65.g3 Nd5 66.Re2 Ke7 67.Ra2 Kd6 68.Re2 Ke7 69.Ra2 Ne3 70.Ra7+ Bd7 71.Rxd7+ Kxd7 72.Kxf7 g5 73.h4 g4 74.Kg6 Ke6 75.Kxh5 Kf5 0-1
2023.04.05 LXVIII Mexican Open 2023
991508 GM Obregon Rivero, J (2493) CM Garcia de Dios, Jose Antonio (2148) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 b6 8.Bb5+ Bd7 9.Bd3 c4 10.Be2 Ba4 11.O-O h6 12.g3 Kd7 13.Nh4 Nbc6 14.f4 g6 15.Ng2 Kc7 16.Be3 b5 17.Bf2 h5 18.h3 a5 19.Qd2 Qd7 20.Nh4 Rhb8 21.Rfb1 Rh8 22.Nf3 Nb8 23.g4 hxg4 24.hxg4 Na6 25.Bh4 Rhb8 26.Kg2 Rb6 27.Rh1 Ng8 28.Bf6 Rf8 29.Rh7 Kb8 30.Bg7 Re8 31.Ng5 Rb7 32.Rah1 b4 33.axb4 axb4 34.Ra1 Qb5 35.Kg3 Rc8 36.cxb4 Nxb4 37.c3 Nd3 38.Bh8 Rf8 39.Qa2 Qb2 40.Qxa4 Qxe2 41.Qa8+ Kc7 42.Nxe6+ 1-0
2023.04.04 LXVIII Mexican Open 2023
991498 Encinas Varela, David (1945) GM Obregon Rivero, J (2493) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.f4 Bd7 9.O-O-O h6 10.Bxf6 Qxf6 11.Nb3 Qd8 12.Kb1 Qc7 13.Bd3 O-O-O 14.f5 Be7 15.Qf2 Kb8 16.Na4 Ne5 17.Nb6 Bc6 18.Na5 Ng4 19.Qd4 Bf6 20.Qb4 Ka7 21.Nxc6+ Qxc6 22.Nc4 Nf2 23.fxe6 fxe6 24.Rhf1 Nxd1 25.Rxd1 d5 26.exd5 exd5 27.Ne3 Qb6 28.Qxb6+ Kxb6 29.Bg6 Kc5 30.c3 d4 31.b4+ Kb6 32.cxd4 Rxd4 33.Nd5+ Ka7 34.Rxd4 Bxd4 35.Kc2 Rf8 36.Kd3 Bg1 37.a4 Bxh2 38.b5 Rf2 39.b6+ Kb8 40.Be4 Ra2 41.Ne7 Rxa4 42.Nf5 Bg1 43.Nxg7 Rd4+ 0-1
2022.04.17 LXVII Mexican Open 2022
1321689 GM Ibarra Chami, L (2441) GM Obregon Rivero, J (2530) 1-0
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.e4 c5 6.Nge2 Nc6 7.O-O d6 8.a3 Ne8 9.Rb1 Nc7 10.b4 Ne6 11.d3 Ned4 12.Nxd4 Nxd4 13.Ne2 b6 14.Nxd4 Bxd4 15.Bb2 e5 16.Bxd4 cxd4 17.f4 Rb8 18.f5 f6 19.h4 Rb7 20.Kh2 Rg7 21.Rc1 Kh8 22.fxg6 hxg6 23.c5 dxc5 24.bxc5 bxc5 25.Rxc5 Qd6 26.Qc1 Be6 27.Rc6 Qe7 28.Bh3 Bxh3 29.Kxh3 Kh7 30.g4 Rgf7 31.Rf2 Kg7 32.Rfc2 Qd7 33.Kg3 Qd8 34.R2c5 Qb8 35.Qc2 Qd8 36.Rd5 Qe7 37.Rdd6 Re8 38.g5 fxg5 39.Rxg6+ Kf8 40.Rxg5 Qxa3 41.Rcg6 1-0
2022.04.16 LXVII Mexican Open 2022
1321639 GM Cori, J (2652) GM Obregon Rivero, J (2530) 1/2-1/2
1.c4 g6 2.g3 Bg7 3.Bg2 c5 4.Nc3 Nc6 5.Nf3 d6 6.O-O e6 7.a3 Nge7 8.Rb1 O-O 9.b4 b6 10.Bb2 Bb7 11.Ba1 Qd7 12.d3 Rad8 13.e3 Ne5 14.Nxe5 Bxe5 15.Qe2 Bxg2 16.Kxg2 Bg7 17.Rfd1 cxb4 18.axb4 d5 19.cxd5 Nxd5 20.Nxd5 Qxd5+ 21.Qf3 Qb5 22.Bxg7 Kxg7 23.d4 Rd7 24.Rdc1 e5 25.dxe5 Qxe5 26.Rc6 Re8 1/2-1/2
2022.04.16 LXVII Mexican Open 2022
1321664 GM Obregon Rivero, J (2530) GM Quesada Perez, Luis Ernesto (2519) 0-1
1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Nf6 5.Nxc6 bxc6 6.e5 Qe7 7.Qe2 Nd5 8.c4 Nb6 9.Nd2 Qe6 10.Qe4 a5 11.Be2 Bb4 12.a3 Bxd2+ 13.Bxd2 Ba6 14.Bxa5 Bxc4 15.Bxb6 Bd5 16.Qe3 cxb6 17.O-O O-O 18.Rfe1 f6 19.Bd3 Rae8 20.exf6 Qxf6 21.Qd2 Bf7 22.Qc2 g6 23.Rxe8 Rxe8 24.Qc3 Qxc3 25.bxc3 b5 26.Kf1 Bb3 27.Rb1 Bd5 28.f3 Kf7 29.Re1 Ra8 30.Ra1 Kf6 31.Ke2 Ra4 32.g3 h6 33.h4 g5 34.hxg5+ hxg5 35.Ke3 Ke5 36.Be2 Ra8 37.Kd2 Be6 38.Bd1 d5 39.Bc2 Rh8 40.f4+ gxf4 41.Re1+ Kf6 42.gxf4 Rh4 43.a4 bxa4 44.Bxa4 c5 45.Rf1 Rh2+ 46.Kc1 Ra2 47.Bd1 Bf5 48.Rh1 Be4 49.Rh6+ Kf5 50.Bb3 Ra1+ 51.Kb2 Rb1+ 52.Ka2 c4 53.Ba4 Rb8 54.Ka3 Kxf4 55.Rh3 Rb6 56.Be8 Bd3 57.Bf7 Rb3+ 58.Ka2 Bb1+ 59.Ka1 Be4 60.Ka2 Rb7 61.Be8 Rb6 62.Bf7 Rf6 63.Be8 Bf5 64.Rh1 Ke3 65.Ka3 Rb6 66.Bf7 Be4 67.Rd1 Rb3+ 68.Ka2 Bf3 69.Re1+ Kd2 70.Re5 Rb7 71.Bg8 Kc2 72.Ka3 Rb3+ 73.Ka4 Rxc3 74.Bxd5 Bxd5 75.Rxd5 Rd3 76.Rh5 c3 77.Ka3 Kc1 78.Rh1+ Rd1 79.Rh2 c2 80.Ka2 Rd8 81.Rh1+ Kd2 82.Rh2+ Kc3 83.Rh3+ Rd3 84.Rh1 Rd1 85.Rh4 0-1
2022.04.15 LXVII Mexican Open 2022
1321618 IM Perez Gormaz, M (2388) GM Obregon Rivero, J (2530) 0-1
1.e4 d5 2.exd5 Qxd5 3.Nf3 Nf6 4.c3 c5 5.d4 Nc6 6.dxc5 Qxc5 7.Na3 e6 8.Nb5 Qe7 9.Bg5 a6 10.Qa4 Rb8 11.Nbd4 Bd7 12.O-O-O Rc8 13.Nxc6 Bxc6 14.Qh4 h6 15.Ne5 hxg5 16.Qxh8 Ne4 17.Bd3 Nxf2 18.Rhf1 Qc5 19.Bg6 fxg6 20.Nxg6 Be4 21.Nxf8 Qe3+ 0-1
2022.04.14 LXVII Mexican Open 2022
1321575 IM Blanco Fernandez, A (2190) GM Obregon Rivero, J (2530) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Bd7 10.f3 Nxd4 11.Bxd4 a5 12.Qd2 Bc6 13.Rfd1 Nd7 14.Be3 a4 15.Rab1 Nc5 16.b4 axb3 17.axb3 Re8 18.Bf1 Qa5 19.b4 Qa3 20.Nd5 Bxd5 21.bxc5 Bc6 22.cxd6 exd6 23.Bd4 Bxd4+ 24.Qxd4 Qc5 25.Kh1 Re6 26.Ra1 Rxa1 27.Qxa1 g5 28.Qa8+ Re8 29.Qa1 g4 30.Qd4 gxf3 31.gxf3 Qh5 32.Be2 Re6 33.Rg1+ Kf8 34.Qg7+ Ke7 35.Qg5+ Qxg5 36.Rxg5 h6 37.Rh5 Rg6 38.c5 dxc5 39.Rxc5 Rg5 40.Rxg5 hxg5 41.Kg2 Kf6 42.Bc4 b5 43.Bb3 Bd7 44.Kf2 Be6 45.Bc2 Ke5 46.Ke3 Bc4 47.f4+ gxf4+ 48.Kf3 f6 49.h4 Bf7 50.Kg4 b4 51.h5 b3 0-1
2022.04.14 LXVII Mexican Open 2022
1321596 GM Obregon Rivero, J (2530) FM Morales Garcia, S (2246) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O Bb4 9.Na4 O-O 10.Nxc6 bxc6 11.Nb6 Rb8 12.Nxc8 Qxc8 13.Bf4 Rb6 14.e5 Nd5 15.Bc1 Bc5 16.a3 a5 17.Bd3 Qc7 18.Qe1 Rbb8 19.Rb1 Bxa3 20.Qe4 f5 21.exf6 Nxf6 22.Qh4 Bc5 23.Bd2 d5 24.Ra1 Bb4 25.Bg5 e5 26.Bf5 Bc5 27.Bxf6 gxf6 28.Rxa5 Bd4 29.Ra3 e4 30.Rh3 Rb7 31.Qg4+ Qg7 32.Bxh7+ Kf7 33.Qf5 Ke7 34.Rg3 Qh6 35.Bg8 Kd6 36.Qe6+ Kc5 37.b4+ Kb5 38.c4+ Kxb4 39.Qxd5 cxd5 1-0
2022.04.13 LXVII Mexican Open 2022
1321524 FM Gonzalez Arroyo, L (2210) GM Obregon Rivero, J (2530) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.d4 cxd4 5.Qxd4 a6 6.Bxd7+ Bxd7 7.O-O e5 8.Qd3 Rc8 9.Nc3 Qc7 10.Rd1 h6 11.h3 Nf6 12.Nh4 b5 13.a3 g6 14.g4 Be7 15.Ng2 Qc4 16.Qf3 Bc6 17.Ne3 Qe6 18.a4 bxa4 19.Ncd5 Nxd5 20.exd5 Bb7 21.Rxa4 Qd7 22.b3 h5 23.g5 Bxg5 24.Nc4 Bxc1 25.Rxc1 Qe7 26.Kh2 Kf8 27.Rb4 Rc7 28.Rb6 Rd7 29.Na5 Bc8 30.Nc6 Qh4 31.Rg1 e4 32.Qe3 Kg7 33.Nd4 Qf6 34.c4 Re8 35.Rg5 Re5 36.Rg2 h4 37.Rg4 Rb7 38.Rf4 Qg5 39.Rxd6 1-0
2022.04.13 LXVII Mexican Open 2022
1321557 GM Obregon Rivero, J (2530) Martinez Martinez, Ian Alf (1790) 1-0
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bg4 5.h3 Bh5 6.Nc3 e6 7.Qb3 Qb6 8.c5 Qc7 9.g4 Bg6 10.Ne5 Nbd7 11.Nxg6 hxg6 12.Bg2 Be7 13.g5 Nh5 14.h4 Rb8 15.Bd2 b6 16.cxb6 Rxb6 17.Qc2 c5 18.Na4 Rc6 19.Rc1 Ng3 20.fxg3 Qxg3+ 21.Kf1 Rxh4 22.Rxh4 Qxh4 23.Qb3 Qg3 24.Qb7 Nb8 25.Nxc5 Bxg5 26.Nd3 Rxc1+ 27.Nxc1 Nd7 28.Qc8+ Ke7 29.Bb4+ Kf6 30.Qxd7 Bxe3 31.Qe7+ Kf5 32.Qxf7+ Kg5 33.Ne2 1-0
2022.04.12 LXVII Mexican Open 2022
1321500 GM Obregon Rivero, J (2530) Sierra Arballo, Jesus (1894) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d3 b5 7.Bb3 d6 8.a4 Rb8 9.axb5 axb5 10.Nc3 O-O 11.Nd5 Bg4 12.c3 Qd7 13.h3 Bh5 14.g4 Bg6 15.Nh4 Nxd5 16.Nxg6 fxg6 17.Bxd5+ Kh8 18.f4 exf4 19.Bxf4 Bh4 20.Be3 Ne5 21.Qe2 g5 22.Rxf8+ Rxf8 23.Rf1 Rf6 24.Rxf6 gxf6 25.Qf1 Kg7 26.d4 Ng6 27.Qf5 Qxf5 28.exf5 Nf4 29.Bc6 Nxh3+ 30.Kg2 Nf4+ 31.Kf3 Nh3 32.Bxb5 Be1 33.c4 Bh4 34.c5 Be1 35.d5 Bb4 36.c6 Nf4 37.Bc4 Ba5 38.b4 Bxb4 39.Bb6 1-0
2022.02.19 8th ch-Iberoamericano
1426822 GM Obregon Rivero, J (2536) IM Vazquez, Guillermo (2545) 1/2-1/2
1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4 h5 5.c4 e6 6.Nc3 dxc4 7.Bxc4 Nd7 8.Nge2 Be7 9.Ng3 Bg6 10.Nge4 Nb6 11.Bb3 Nh6 12.Bg5 Bxe4 13.Nxe4 Nf5 14.O-O Qxd4 15.Qf3 Nd5 16.Rad1 Qxe5 17.Rfe1 Nd4 18.Qd3 Nxb3 19.Bxe7 Kxe7 20.Qxb3 Qc7 21.Qa3+ Ke8 22.Nd6+ Kf8 23.Nxb7+ Qe7 24.Nc5 Kg8 25.Rc1 Qxh4 26.Ne4 Rh6 27.Rxc6 Qg4 28.Rc4 Nf4 29.g3 h4 30.f3 Qg6 31.g4 e5 32.Qc3 Qb6+ 33.Kh1 Re6 34.Rc8+ Re8 35.Rxa8 Rxa8 36.Qxe5 Nd3 37.Qd5 Rd8 38.Nd6 Nxe1 1/2-1/2
2022.02.18 8th ch-Iberoamericano
1426774 GM Rodriguez Vila, A (2461) GM Obregon Rivero, J (2536) 0-1
1.d4 Nf6 2.Nc3 d5 3.Bf4 c5 4.e3 Qa5 5.Nf3 Ne4 6.Be2 Nc6 7.O-O Nxc3 8.bxc3 Qxc3 9.Rb1 c4 10.Rb5 e6 11.e4 dxe4 12.Ng5 a6 13.Bh5 g6 14.d5 axb5 15.dxc6 Qf6 16.g3 Be7 17.Nxe4 Qf5 18.Nd6+ Bxd6 19.Qxd6 Qd5 20.Bf3 Qxd6 21.Bxd6 Ra6 22.Be5 f6 23.Bxf6 Rf8 24.cxb7 Bxb7 25.Bxb7 Rb6 26.Be5 Rxb7 27.Rb1 Kf7 28.c3 Rd8 29.a4 Ra8 30.axb5 Ra5 31.Re1 Rbxb5 32.Bd6 Rd5 33.Bf4 e5 34.Bg5 Ke6 35.h4 Ra3 36.Rb1 Rxc3 37.Rb8 Rd7 38.Kg2 Rb3 39.Re8+ Kf7 40.Rxe5 Rc7 41.Bf4 c3 42.Re3 Rc8 43.Rf3 Kg8 44.Bh6 Rb1 0-1
2022.02.17 8th ch-Iberoamericano
1426726 GM Obregon Rivero, J (2536) IM Berdayes Ason, Dylan Isidro (2445) 1-0
1.e4 e5 2.Bc4 Nf6 3.d3 Bc5 4.Nf3 Nc6 5.O-O d6 6.a4 a6 7.a5 Ba7 8.Be3 O-O 9.Bxa7 Rxa7 10.Re1 Re8 11.c3 Be6 12.Nbd2 Bxc4 13.dxc4 Ne7 14.c5 Ng6 15.Nc4 dxc5 16.Qxd8 Rxd8 17.Nfxe5 Nxe5 18.Nxe5 Raa8 19.f3 Kf8 20.Red1 Ke7 21.Kf2 Nd7 22.Nc4 Nf6 23.Ke3 Ne8 24.Kf4 Ke6 25.g4 Nf6 26.h4 g6 27.g5 Ng8 28.Kg4 h5+ 29.Kf4 Ne7 30.Ke3 Nc6 31.f4 Ne7 32.Ne5 Rd6 33.Nd3 b6 34.Ne5 Nc8 35.Rf1 Rd8 36.axb6 cxb6 37.Nc4 f5 38.gxf6 b5 39.Ne5 Kxf6 40.Rfd1 Nd6 41.b3 Kg7 42.Rg1 Kh7 43.Rxg6 c4 44.Rag1 cxb3 45.R1g5 Nc4+ 46.Nxc4 bxc4 47.f5 1-0
2022.02.16 8th ch-Iberoamericano
1426671 GM Santos Latasa, J (2640) GM Obregon Rivero, J (2536) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be3 d6 6.h3 c5 7.d5 Qa5 8.Bd2 e6 9.Nf3 exd5 10.exd5 Bf5 11.Be2 Qb6 12.g4 Be4 13.O-O Bxf3 14.Bxf3 Nbd7 15.Qc2 Ne8 16.Be2 Qd8 17.Kg2 a6 18.a4 f5 19.f4 Nc7 20.a5 Bd4 21.Bf3 Rb8 22.Rae1 b5 23.axb6 Rxb6 24.b3 Qb8 25.Bd1 Qc8 26.Ne2 fxg4 27.hxg4 Bg7 28.Ng3 a5 29.Bxa5 Ra6 30.Bc3 Bxc3 31.Qxc3 Ra2+ 32.Re2 Rxe2+ 33.Bxe2 Nf6 34.g5 Nfe8 35.Ne4 Qd7 36.Qe3 Ng7 37.Nf6+ Rxf6 38.gxf6 Nf5 39.Qh3 Ne8 40.Bd3 Nxf6 41.Bxf5 gxf5 42.Qh6 Kf7 43.Qg5 h6 44.Qxh6 Qe7 45.Qh3 Qe4+ 46.Qf3 Qc2+ 47.Rf2 Qb1 48.Re2 Qa1 49.Qd3 Ne4 50.Qh3 Kg6 51.Kh2 Nf6 52.Rg2+ Ng4+ 53.Rxg4+ fxg4 54.Qxg4+ Kf6 55.Qe6+ Kg7 56.Qxd6 Qb2+ 57.Kg3 Qxb3+ 58.Kg4 Qxc4 59.Qe7+ Kg8 60.d6 Qf7 61.Qxf7+ Kxf7 62.f5 1-0
2022.02.15 8th ch-Iberoamericano
1426624 GM Obregon Rivero, J (2536) FM Sandoval Mercado, Carlos (2289) 1-0
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Be3 Nc6 7.d5 Ne5 8.f4 Neg4 9.Bd2 Nh6 10.Nf3 e6 11.dxe6 fxe6 12.Qc2 Qe7 13.O-O-O e5 14.fxe5 dxe5 15.h3 c6 16.g4 Nf7 17.Be3 Be6 18.Nd2 Rfb8 19.Kb1 Nd8 20.g5 Nd7 21.h4 Bf7 22.h5 Ne6 23.hxg6 Bxg6 24.Bh5 Nd4 25.Qd3 Nc5 26.Qf1 Qe6 27.Bxg6 Qxg6 28.Rh4 a6 29.Qh3 b5 30.Rg1 bxc4 31.Nxc4 Qf7 32.Qf1 Rf8 33.Qxf7+ Rxf7 34.Rgh1 Raf8 35.Nd2 Nd3 36.Rxh7 Nf2 37.R1h4 Ng4 38.Rxg7+ Kxg7 39.Rxg4 Kg6 40.Rh4 Rh7 41.Rh6+ Rxh6 42.gxh6 Ne6 43.b3 Nf4 44.Nf3 Kf6 45.Na4 Rg8 46.Nc5 Rg3 1-0
2022.02.14 8th ch-Iberoamericano
1426573 FM Veiga, Jose Francisco R P Neves (2366) GM Obregon Rivero, J (2536) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6 6.Be2 cxd4 7.cxd4 e6 8.Nc3 Qd6 9.O-O Be7 10.Bg5 O-O 11.Qd2 b6 12.Bf4 Qd8 13.Rac1 Bb7 14.Rfd1 Nb4 15.Ne5 Nbd5 16.Nxd5 Nxd5 17.Nc6 Bxc6 18.Rxc6 Qd7 19.Rc2 Rac8 20.Be5 Bd6 21.Bc4 Nb4 22.Bxg7 Kxg7 23.Qg5+ Kh8 24.Qf6+ Kg8 25.Rc3 1/2-1/2
2022.02.13 8th ch-Iberoamericano
1432074 WIM Corrales Jimenez, Z (2151) GM Obregon Rivero, J (2536) 0-1
1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Qxd4 Nc6 6.Bb5 Bd7 7.Bxc6 Bxc6 8.Bg5 e6 9.O-O-O Be7 10.Rhe1 O-O 11.Kb1 h6 12.Bh4 b5 13.Bxf6 Bxf6 14.Qxd6 Qb6 15.Ne5 Bxe5 16.Qxe5 Qxf2 17.Rf1 Qh4 18.g4 b4 19.Ne2 Qg5 20.Qxg5 hxg5 21.Ng3 g6 22.Rd4 Rab8 23.Rfd1 Kg7 24.Rc4 Rfc8 25.b3 Kf6 26.Kb2 Be8 27.c3 bxc3+ 28.Kxc3 Ke5 29.h3 Bb5 30.Rxc8 Rxc8+ 31.Kb4 Rb8 32.Kc5 Kf4 33.Nf1 Kxe4 34.Nd2+ Ke3 35.Nc4+ Bxc4 36.bxc4 Rc8+ 37.Kb4 f5 38.Re1+ Kd4 39.Rd1+ Ke5 40.c5 f4 41.Kb5 f3 42.c6 Kf4 43.Rd7 f2 44.Rf7+ Kg3 45.Kc5 e5 0-1
2022.02.13 8th ch-Iberoamericano
1432122 GM Obregon Rivero, J (2536) FM Noboa Silva, Kevin (2331) 1-0
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 O-O 5.a3 Be7 6.e4 d6 7.Be2 a5 8.b3 e5 9.Bb2 exd4 10.Nxd4 Nc6 11.O-O Nxd4 12.Bxd4 Nd7 13.Bg4 Bf6 14.Nf3 Re8 15.Re1 Ne5 16.Bxc8 Nxf3+ 17.Qxf3 Bxd4 18.Bxb7 Bxa1 19.Bxa8 Qxa8 20.Rxa1 Qxe4 21.Qxe4 Rxe4 22.Kf1 Kf8 23.Rc1 c5 24.Rc3 Ke7 25.f3 Rh4 26.h3 Kd7 27.Ke2 Kc6 28.Kd2 f5 29.Rd3 Rh6 30.Ke3 Rg6 31.Rd2 Re6+ 32.Kf4 Re5 33.a4 Kd7 34.Rd3 Re2 35.g3 Ke6 36.Kg5 Re1 37.f4 Re4 38.Rf3 Re2 39.g4 fxg4 40.hxg4 Kf7 41.Rd3 h6+ 42.Kh4 Rh2+ 43.Kg3 Rb2 44.Kf3 Ke7 45.Re3+ Kf6 46.Rd3 Ke7 47.f5 Rb1 48.Re3+ Kd7 49.Kg3 Rg1+ 50.Kh4 Rh1+ 51.Kg3 Rg1+ 52.Kf3 Rb1 53.Kg2 Rb2+ 54.Kh3 Rb1 55.Rc3 Re1 56.Kh4 Ke7 57.Rd3 Rh1+ 58.Kg3 Re1 59.Kf2 Re5 60.Kf3 h5 61.Kf4 hxg4 62.Kg5 Re4 63.Kg6 Rf4 64.Rg3 Rf3 65.Rxg4 Kf8 66.Rg1 Rxb3 67.f6 gxf6 68.Kxf6 Rb4 69.Rh1 Kg8 70.Rg1+ Kf8 71.Rh1 Kg8 72.Rc1 Rxa4 73.Ke7 Ra2 74.Rg1+ Kh7 75.Kxd6 Rd2+ 76.Kxc5 Rd8 77.Kb6 a4 78.Ra1 Rb8+ 79.Kc7 Rb4 80.c5 Kg6 81.c6 Kf5 82.Kd6 Rc4 83.Kd5 Rc2 84.Rxa4 Kf6 85.Re4 Kf5 86.Re8 Kf6 87.Kd6 Kf7 88.Rh8 Rd2+ 89.Kc5 Rc2+ 90.Kb6 Ke7 91.c7 Rb2+ 92.Ka5 Ra2+ 93.Kb4 1-0
2022.02.12 8th ch-Iberoamericano
1432029 GM Obregon Rivero, J (2536) Moran Velez, Francisco R (1931) 1-0
1.e4 c5 2.Nf3 g6 3.c3 Qa5 4.Na3 Bg7 5.d4 d6 6.Nc4 Qc7 7.a4 Be6 8.Ng5 cxd4 9.Nxe6 fxe6 10.cxd4 Nc6 11.d5 Ne5 12.Nxe5 dxe5 13.Bb5+ Kf8 14.dxe6 a6 15.Bd3 Qb6 16.O-O Rd8 17.Qf3+ Nf6 18.Bc4 Qd4 19.Bd5 Rb8 20.Be3 Qb4 21.Rfc1 Qd6 22.Bc5 1-0
2021.11.07 1st ITT Latinoamericano A
1500717 GM Obregon Rivero, J (2543) GM Quesada Perez, Luis Ernesto (2545) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Bd2 Nxe4 8.Bxb4 Nxb4 9.Bxf7+ Kxf7 10.Qb3+ Kf8 11.Qxb4+ Qe7 12.Qxe7+ Kxe7 13.Nc3 Nxc3 14.bxc3 d6 1/2-1/2
2021.11.07 1st ITT Latinoamericano A
1500725 FM Benitez Lozano, J (2288) GM Obregon Rivero, J (2543) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 e6 5.b3 Nbd7 6.Qc2 Bd6 7.Bb2 O-O 8.Be2 Qe7 9.O-O a6 10.d4 b5 11.e4 Nxe4 12.Nxe4 dxe4 13.Qxe4 Nf6 14.Qh4 bxc4 15.Bxc4 a5 16.Rac1 Nd5 17.Qe4 a4 18.bxa4 Ba6 19.Rfe1 Bxc4 20.Rxc4 Rfb8 21.Bc1 h6 22.Ne5 Bxe5 23.dxe5 Nb6 24.Rxc6 Rxa4 25.Qc2 Qd7 26.Be3 Rxa2 27.Qxa2 Qxc6 28.Bxb6 Qxb6 29.h3 Qd4 30.Qe2 Rb2 31.Qf3 Ra2 32.g3 Ra1 33.Qe2 Rxe1+ 34.Qxe1 h5 35.h4 g6 36.Qe2 Kg7 37.Qe1 Qd3 38.Kg2 Qd5+ 39.Kg1 Qf3 40.Qc1 Qf5 41.Qe3 Qb1+ 42.Kg2 Qb4 43.Qg5 Qe4+ 44.Kg1 Qd4 45.Qf6+ Kg8 46.Qg5 Qd1+ 47.Kg2 Qd5+ 48.Kg1 Kf8 49.Qh6+ Ke7 50.Qg5+ Ke8 51.Qf4 Qd1+ 52.Kg2 Qd7 53.Kh2 Kd8 54.Kg1 Kc7 55.Kh2 Qe7 56.Kg1 Kc6 57.Qc4+ Kb6 58.Qb3+ Kc6 59.Qc4+ Qc5 60.Qe4+ Kd7 61.Qf4 Ke8 62.Qa4+ Kf8 63.Qf4 Qc2 64.Qh6+ Ke8 65.Qf4 Qb1+ 66.Kg2 Qc2 67.Kg1 Qf5 68.Qa4+ Kf8 69.Qa3+ Kg7 70.Qe3 Qb1+ 71.Kg2 Qb7+ 72.Kg1 Qe7 73.Qf4 Qd8 74.Kg2 Qd3 75.Qf6+ Kf8 76.Qh8+ Ke7 77.Qf6+ Ke8 78.Qf4 Qf5 79.Qa4+ Kd8 80.Qa5+ Kd7 81.Qb5+ Ke7 82.Qc5+ Ke8 83.Qc8+ Ke7 84.Qc5+ Ke8 85.Qc8+ Ke7 1/2-1/2
2021.11.06 1st ITT Latinoamericano A
1500708 GM Obregon Rivero, J (2543) FM Garcia Guerrero, I (2368) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 e6 4.Bxc6 bxc6 5.O-O Ne7 6.b3 Ng6 7.Bb2 f6 8.e5 Be7 9.d3 O-O 10.Nbd2 Qc7 11.Nc4 fxe5 12.Nfxe5 Nh8 13.Qg4 Bf6 14.Qg3 Ba6 15.f4 Bxc4 16.Ng4 Ng6 17.Nxf6+ gxf6 18.dxc4 Rf7 19.Qe3 Re8 20.f5 Ne5 21.fxe6 Rxe6 22.Qxc5 Ng4 23.Qh5 Rg7 24.Kh1 Rg6 25.Bc1 Qd6 26.Bf4 Qd4 27.Bg3 Rh6 28.c3 Qxc4 29.Qa5 Qd5 30.Qxd5 cxd5 31.h3 Ne3 32.Rf3 Rg6 33.Bf2 Nc2 34.Rd1 d4 35.Rd2 Ne1 36.Bxe1 Rxe1+ 37.Kh2 dxc3 38.Rxc3 Re7 39.Rc8+ Kf7 40.Rc7 d6 41.Rc6 f5 42.Rcxd6 Rxd6 43.Rxd6 Kg7 44.Ra6 f4 45.Kg1 Re2 46.Rxa7+ Kg6 47.Ra5 1-0
2021.11.06 1st ITT Latinoamericano A
1500714 FM Cardoso Cardoso, Jose Gabriel (2447) GM Obregon Rivero, J (2543) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.h4 h6 11.Be3 h5 12.Bg5 Qc7 13.Nxc6 Bxc6 14.Bd3 b5 15.Ne2 Qb6 16.Be3 Qb7 17.Nd4 Bd7 18.Bg5 Qb6 19.Be3 Qb7 20.Rhe1 a5 21.Bg5 Qb6 22.Bf1 e5 23.f4 1/2-1/2
2021.11.05 1st ITT Latinoamericano A
1500699 GM Obregon Rivero, J (2543) GM Ramirez, Alej (2562) 1/2-1/2
1.Nf3 Nf6 2.c4 g6 3.g3 c6 4.Bg2 Bg7 5.d4 O-O 6.O-O d5 7.Qa4 Nbd7 8.cxd5 Nb6 9.Qa3 cxd5 10.Bf4 Nc4 11.Qb3 Na5 12.Qa3 Nc4 13.Qb3 Na5 1/2-1/2
2021.11.05 1st ITT Latinoamericano A
1500703 IM Avila Pavas, Santiago (2432) GM Obregon Rivero, J (2543) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.f3 O-O 10.Be3 Nc6 11.O-O a6 12.a4 Rac8 13.b3 e6 14.Qd2 Na5 15.Rab1 Qc7 16.Rfc1 Nd7 17.Nce2 Rfe8 18.Kh1 b6 19.b4 Bxd4 20.Qxd4 Nxc4 21.Bh6 e5 22.Qf2 d5 23.Nc3 d4 24.Nd5 Qd6 25.f4 f5 26.fxe5 Qxe5 27.Bf4 Qxe4 28.Nc7 Rxc7 29.Bxc7 b5 30.axb5 axb5 31.Re1 Ne3 32.Rbd1 Nf6 33.Bb6 Qe6 34.Bxd4 Nxd1 35.Rxd1 Ng4 36.Qb2 f4 37.Rf1 Qc4 38.Qa1 Ne3 39.Re1 Qxb4 40.h3 Qd2 41.Rg1 Nf5 42.Bb2 Qe2 43.Qa3 f3 44.Qc3 Kf7 45.Qf6+ Kg8 46.Qh8+ Kf7 47.Qxh7+ Kf8 48.Qxg6 fxg2+ 49.Kh2 Qxb2 50.Qxf5+ Ke7 51.Re1+ Kd8 52.Qd5+ Kc7 53.Qf7+ Kb6 54.Qxe8 1-0
2021.11.04 1st ITT Latinoamericano A
1500690 GM Obregon Rivero, J (2543) FM Galaviz Medina, Sion Radamantys (2377) 1/2-1/2
1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d4 e6 5.O-O Nf6 6.c4 dxc4 7.Qa4 cxd4 8.Ne5 Bd7 9.Nxc6 bxc6 10.Qxc4 Qb6 11.Rd1 e5 12.e3 1/2-1/2
2021.11.04 1st ITT Latinoamericano A
1500692 IM Blanco Fernandez, A (2235) GM Obregon Rivero, J (2543) 0-1
1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bf4 O-O 7.e3 b6 8.Qc2 c5 9.dxc5 bxc5 10.Rd1 Nc6 11.Be2 Qa5 12.O-O Rd8 13.Ne5 Nxe5 14.Bxe5 Bb7 15.cxd5 Nxd5 16.Nxd5 Bxd5 17.b3 c4 18.Qb2 cxb3 19.Bxg7 Qxa2 20.Qxa2 bxa2 21.Bd4 Bb3 22.Rc1 Rac8 23.Ra1 0-1
2021.11.03 1st ITT Latinoamericano A
1500681 GM Obregon Rivero, J (2543) IM Estrada Nieto, J (2280) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.d5 Nc4 13.a4 Bd7 14.b3 Na5 15.axb5 axb5 16.Nbd2 Nb7 17.Rb1 g6 18.Nf1 Nh5 19.Bh6 Ng7 20.g4 f6 21.Ng3 Nd8 22.Kh1 Nf7 23.Be3 Ng5 24.Nxg5 fxg5 25.Kg2 Ra2 26.Ra1 Rfa8 27.Rxa2 Rxa2 28.Bb1 Ra8 29.Qd2 Qd8 30.Ne2 Ne8 31.Ng1 Bf6 32.Nf3 h6 33.Bd3 Nc7 34.Rh1 Ra3 35.Qc1 Ra2 36.Kg3 Bc8 37.Qb1 Ra8 38.Qb2 Qe8 39.Be2 Kg7 40.Ra1 Bd7 41.b4 Rxa1 42.Qxa1 Nxd5 43.exd5 e4 44.Nd2 cxb4 45.Qb1 bxc3 46.Nxe4 Be5+ 47.Kg2 Qc8 48.Qb4 c2 49.Bc1 Qb7 50.Nxd6 Qxd5+ 51.Ne4 Bc6 52.Qe7+ Kg8 53.Bf3 Kh8 54.Nxg5 1-0
2021.08.08 LXVI Mexican Open 2021
1595033 GM Obregon Rivero, J (2536) Avila Rodriguez, Joshua Ad (2058) 1-0
1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.Qb3 dxc4 5.Qxc4 Bf5 6.Nc3 e6 7.g3 Nbd7 8.Bg2 Be7 9.O-O O-O 10.e3 Ne4 11.Nd2 Nd6 12.Qe2 e5 13.dxe5 Nxe5 14.e4 Bg4 15.f3 Be6 16.Kh1 Qa5 17.f4 Bg4 18.Qe3 Ndc4 19.Qd4 Qd8 20.Nd5 cxd5 21.fxe5 Nxd2 22.exd5 Nxf1 23.Qxg4 Qb6 24.Bxf1 Rfd8 25.d6 Bxd6 26.exd6 Rxd6 27.Bf4 Qxb2 28.Re1 Qf2 29.Qe2 Qxe2 30.Rxe2 Rd1 31.Kg2 h6 32.Rb2 Rc8 33.Be2 Ra1 34.h4 b6 35.h5 Rc5 36.Rd2 Rc8 37.Bd1 f6 38.Bb3+ Kh8 39.Be3 Rac1 40.Be6 R8c2 41.Rxc2 Rxc2+ 42.Kf3 Rb2 43.Bb3 a5 44.Bd4 Rb1 45.Bc2 Rb4 46.Ke3 Rc4 47.Bb3 Rc6 48.a4 Rd6 49.Kd3 Kh7 50.Bf7 Rc6 51.Bd5 Rd6 52.Be4+ Kg8 53.Kc4 Kf7 54.g4 Ke8 55.Bf5 Kd8 56.Be3 Rc6+ 57.Kb5 Rc3 58.Bxb6+ Ke7 59.Bxa5 Rf3 60.Bb4+ Kf7 61.a5 Re3 62.a6 1-0
2021.08.07 LXVI Mexican Open 2021
1594984 GM Obregon Rivero, J (2536) GM Cori, J (2652) 0-1
1.e4 c6 2.d4 d5 3.e5 Bf5 4.c4 e6 5.Nc3 Ne7 6.h4 h5 7.Bg5 Qb6 8.Qd2 Nd7 9.cxd5 Nxd5 10.Bc4 f6 11.Bxd5 cxd5 12.exf6 gxf6 13.Bf4 Qa6 14.Nge2 Qd3 15.Qc1 Bb4 16.O-O Kf7 17.Rd1 Qa6 18.Ng3 Bg6 19.a3 Bxc3 20.Qxc3 Rac8 21.Qf3 Qb6 22.b4 Rc4 23.Rac1 Rhc8 24.Rxc4 Rxc4 25.Be3 Qd8 26.b5 Qh8 27.Bf4 Nb6 28.Bd6 Rc8 29.Re1 Nc4 30.Bb4 Qh6 31.Ne2 Be4 32.Qg3 Qg6 33.Qh2 Nb2 34.Nf4 Qg4 35.Rf1 Nd3 36.Bd2 Nxf4 37.Bxf4 Bxg2 38.Re1 Be4+ 39.Qg3 Rg8 40.Rc1 Qxf4 41.Kf1 0-1
2021.08.07 LXVI Mexican Open 2021
1595010 FM Gracia Alvarez, Gerardo Antonio (2241) GM Obregon Rivero, J (2536) 0-1
1.b3 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 c5 6.c4 Nc6 7.O-O d6 8.d4 cxd4 9.Nxd4 Qb6 10.e3 Bd7 11.Qd2 Rfc8 12.Nc3 Rab8 13.h3 Qa5 14.Rfd1 a6 15.Nd5 Qxd2 16.Nxf6+ Bxf6 17.Rxd2 Kg7 18.Rad1 Nd8 19.g4 h6 20.f4 Ne6 21.Nxe6+ Bxe6 22.Bxf6+ Kxf6 23.Rd4 b5 24.cxb5 axb5 25.R1d2 Rc1+ 26.Kf2 Rbc8 27.Rb4 Bd7 28.Rbd4 g5 29.Ke2 Ra1 30.Kf2 Rc7 31.Rb2 Kg7 32.Rdd2 h5 33.Bf3 h4 34.Rbc2 Ra7 35.fxg5 Kg6 36.Be4+ Kxg5 37.Rd5+ Kf6 38.Rdd2 Be6 39.Kf3 Ke5 40.Bc6 b4 41.Rd4 Rc7 42.Rdd2 d5 43.Ba4 Rc3 44.Ke2 Rh1 45.Rxc3 bxc3 46.Rd1 Bxg4+ 47.hxg4 Rxd1 0-1
2021.08.06 LXVI Mexican Open 2021
1594940 GM Obregon Rivero, J (2536) FM Tapie, P (2313) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Nxd7 5.O-O Ngf6 6.Re1 e6 7.b3 Be7 8.d4 b5 9.e5 dxe5 10.dxe5 Nd5 11.c4 bxc4 12.bxc4 Nb4 13.Qe2 Nc6 14.Nc3 O-O 15.Qe4 Nd4 16.Nxd4 cxd4 17.Qxd4 Nb6 18.Qg4 Qd3 19.Ne4 Rfc8 20.Bh6 g6 21.c5 Rxc5 22.Nxc5 Bxc5 23.Rad1 Qa3 24.Qf4 Be7 25.Re3 Nd5 26.Rxa3 Nxf4 27.Ra6 Nd5 28.Rc1 Bd8 29.Rac6 Ne7 30.R6c4 Rb8 31.g4 Bb6 32.Kg2 Re8 33.Kf3 Rd8 34.Ke2 Rd5 35.Rc7 Rxe5+ 36.Kf1 1-0
2021.08.06 LXVI Mexican Open 2021
1594962 GM Hevia, A (2464) GM Obregon Rivero, J (2536) 0-1
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 c5 5.c3 Qc7 6.O-O O-O 7.Re1 d5 8.Qb3 c4 9.Qd1 Nc6 10.Bf4 Qa5 11.Qc1 Bf5 12.Nbd2 Nh5 13.Bg5 h6 14.Be3 g5 15.b3 cxb3 16.Nxb3 Qd8 17.h4 g4 18.Ne5 Qd6 19.Nxc6 Qxc6 20.c4 Qxc4 21.Bxh6 Qxc1 22.Bxc1 e6 23.Ba3 Rfc8 24.Rac1 b6 25.e3 Bd3 26.Nd2 f5 27.Bf1 Bxf1 28.Kxf1 e5 29.dxe5 Bxe5 30.Nb3 Nf6 31.Red1 Kf7 32.Ke2 Ne4 33.Rxd5 Rxc1 34.Rd7+ Ke6 35.Re7+ Kf6 36.Nxc1 Rd8 37.Nb3 Nc3+ 38.Kf1 Rd1+ 39.Kg2 Nb5 40.Rxe5 Kxe5 41.Bb2+ Ke6 42.h5 Kf7 43.Be5 Rd5 44.Bb2 Kg8 45.a4 Kh7 46.Bc1 Rd3 47.Nd2 Nc3 48.Nc4 Nxa4 49.Ne5 Rd1 50.Ba3 Kh6 51.e4 Re1 52.Nf7+ Kg7 53.Nd6 fxe4 54.Bb4 Re2 55.Nf5+ Kh7 56.Bf8 Kg8 57.Be7 Nc3 58.Nh6+ Kh7 59.Nxg4 Nd5 60.Kf1 Rc2 61.Nf6+ Nxf6 62.Bxf6 b5 63.g4 b4 64.Ke1 0-1
2021.08.05 LXVI Mexican Open 2021
1594904 GM Obregon Rivero, J (2536) Garcia Nevarez, Moises Omar (2029) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.c3 Nge7 7.a4 O-O 8.d3 d6 9.Be3 Bg4 10.Nbd2 f5 11.h3 Bxf3 12.Nxf3 f4 13.Bd2 h6 14.b4 g5 15.Bc4+ Kh8 16.Nxg5 Qe8 17.Ne6 Qg6 18.Nxf8 Rxf8 19.Qg4 Qh7 20.bxc5 dxc5 21.a5 Ng6 22.a6 h5 23.Qe6 Nd8 24.Qd7 Nh4 25.Kh1 b5 26.Bd5 Qg6 27.Rg1 Bh6 28.f3 Qf6 29.Qxa7 Nf7 30.Bxf7 Rxf7 31.Qxf7 1-0
2021.08.05 LXVI Mexican Open 2021
1594920 Quiroga Garza, Juan Manuel (2152) GM Obregon Rivero, J (2536) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 Bxc6 7.c4 Nf6 8.Nc3 g6 9.O-O Bg7 10.Qd3 O-O 11.Nd4 Nd7 12.Be3 Rc8 13.f3 Ne5 14.Qe2 Bd7 15.b3 f5 16.exf5 gxf5 17.Rad1 f4 18.Bf2 Qe8 19.Bh4 Qh5 20.Bxe7 Rfe8 21.Nd5 Ng6 22.Rfe1 Kf7 23.Ne6 Be5 24.Ng5+ Kg7 25.Nf6 Bxf6 26.Bxf6+ Kxf6 27.Ne4+ Kg7 28.Rxd6 Bc6 29.Qb2+ Qe5 30.Qd2 Re7 31.Kf1 Bxe4 32.fxe4 Rce8 33.Rd5 Qf6 34.Qd3 Ne5 35.Qh3 Qg6 0-1
2021.07.25 III Fenamac GpA 2021
1606253 GM Obregon Rivero, J (2529) FM Medina Diaz, Rafael Alejandro (2299) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.O-O Be7 6.c3 a6 7.Ba4 O-O 8.Nbd2 Re8 9.Re1 Bg4 10.h3 Bh5 11.Nf1 Bf8 12.Ng3 Bg6 13.Nh4 d5 14.Qf3 dxe4 15.dxe4 b5 16.Bc2 Na5 17.Bg5 c5 18.Rad1 Qb6 19.Bxf6 Qxf6 20.Qxf6 gxf6 21.Nhf5 Rad8 22.Ne3 Nc4 23.Nxc4 bxc4 24.h4 h5 25.Rxd8 Rxd8 26.Nf1 Bh6 27.f3 Rb8 28.Rb1 Kf8 29.Kf2 Ke7 30.b4 cxb4 31.Rxb4 Rxb4 32.cxb4 Bc1 33.Ne3 Ba3 34.Ke2 Kd7 35.Nxc4 Bxb4 36.Nb6+ Kd8 37.Nd5 Bc5 38.g4 Be7 39.Nxe7 Kxe7 40.Kd2 Kd6 41.Kc3 Kc5 42.Bd3 a5 43.a4 hxg4 44.fxg4 Bh7 45.Bc2 Bg6 46.h5 Bh7 47.h6 Kd6 48.Bb3 Bxe4 49.Bc2 Bh7 1-0
2021.07.25 III Fenamac GpA 2021
1606258 IM Sanchez Enriquez, O (2324) GM Obregon Rivero, J (2529) 0-1
1.b3 Nf6 2.Bb2 g6 3.g3 Bg7 4.Bg2 O-O 5.Nf3 c5 6.c4 Nc6 7.O-O d6 8.Nc3 Ne4 9.Qc2 Nxc3 10.Bxc3 e5 11.e3 Be6 12.Rad1 d5 13.d4 cxd4 14.exd4 e4 15.Ne5 f5 16.f4 Rc8 17.Qb2 b6 18.h4 Qe7 19.cxd5 Bxd5 20.Nc4 Bxc4 21.bxc4 Rfd8 22.Rfe1 Rxd4 0-1
2021.07.24 III Fenamac GpA 2021
1606249 FM Benitez Lozano, J (2340) GM Obregon Rivero, J (2529) 0-1
1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nf6 5.e4 O-O 6.Nge2 Nc6 7.d3 d6 8.O-O Bg4 9.f3 Bd7 10.Be3 a6 11.a4 Ne8 12.d4 cxd4 13.Nxd4 Rc8 14.b3 b5 15.axb5 Nxd4 16.Bxd4 axb5 17.Nxb5 Bxb5 18.cxb5 Rb8 19.Bxg7 Nxg7 20.Rf2 Rxb5 21.Bf1 Rb4 22.Bc4 Qb6 23.Ra6 Qc5 24.Kg2 Ne6 25.Rfa2 Nc7 26.R6a5 Qb6 27.h4 e6 28.h5 d5 29.exd5 exd5 30.Rxd5 Nxd5 31.Qxd5 Qf6 32.Ra6 Rb6 33.Rxb6 Qxb6 34.Qe5 gxh5 35.Qxh5 Qg6 36.Qd5 Qg7 37.b4 Qf6 38.Qe4 Rd8 39.b5 Rd4 40.Qe8+ Kg7 41.Be2 h5 42.Qe3 Rb4 43.Qd3 h4 44.gxh4 Rxh4 45.Qe3 Qg6+ 46.Kf2 Rh2+ 47.Ke1 Qb1+ 48.Bd1 Qb4+ 49.Kf1 Rh1+ 50.Kg2 Rxd1 51.Qg5+ Kf8 52.Qh6+ Ke8 53.Qh8+ Kd7 54.Qh3+ Kc7 55.Qg3+ Kb7 0-1
2021.07.23 III Fenamac GpA 2021
1606240 GM Obregon Rivero, J (2529) FM Tello Chavez, Isaac Valent (2270) 1-0
1.c4 c6 2.e4 d5 3.exd5 cxd5 4.d4 Nf6 5.Nc3 e6 6.Nf3 Be7 7.Bd3 dxc4 8.Bxc4 O-O 9.O-O Nc6 10.Re1 b6 11.a3 Bb7 12.Bd3 Nd5 13.Bc2 Bf6 14.Ne4 Nce7 15.Qd3 Ng6 16.g3 Be7 17.h4 Nf6 18.Nc3 Qd6 19.Bg5 Rfd8 20.Bxf6 Bxf6 21.h5 Nf8 22.Ne4 Bxe4 23.Rxe4 Rac8 24.Rd1 h6 25.Bb3 Rc7 26.Qe2 Rcd7 27.Ba4 Rc7 28.Bb3 Rcd7 29.Ne5 Bxe5 30.dxe5 Qc7 31.Rxd7 Nxd7 32.Bc2 Rc8 33.Bd3 Qc1+ 34.Kg2 Qc6 35.Kh2 Nc5 36.Rc4 Qa8 37.Bb1 Rd8 38.b4 Nd7 39.f4 f5 40.exf6 Nxf6 41.Qxe6+ Kh8 42.Be4 Nxe4 43.Rxe4 Rd5 44.f5 Qd8 45.Qg6 1-0
2021.07.23 III Fenamac GpA 2021
1606242 IM Frey Beckman, K (2253) GM Obregon Rivero, J (2529) 0-1
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.d4 d6 6.Be2 c5 7.d5 e6 8.O-O Re8 9.Bf4 exd5 10.exd5 Ne4 11.Nxe4 Rxe4 12.Bg5 Qf8 13.Qc2 Re8 14.Rae1 Bg4 15.h3 Bxf3 16.Bxf3 Nd7 17.Bd2 Be5 18.Be2 Re7 19.f4 Bd4+ 20.Kh1 Rae8 21.Bf3 Be3 22.Bxe3 Rxe3 23.Rxe3 Rxe3 24.Qa4 Nb6 25.Qxa7 Nxc4 26.Qxb7 Nd2 27.Rd1 Nxf3 28.gxf3 Rxf3 29.Kg2 Rxf4 30.Rf1 Rb4 31.Qd7 Rxb2+ 32.Rf2 Rb8 33.a4 c4 34.a5 Ra8 35.Ra2 Qh6 36.a6 Qg5+ 37.Kf2 Qxd5 38.a7 c3 39.Qa4 Kg7 0-1
2021.07.22 III Fenamac GpA 2021
1606230 FM Garcia Guerrero, I (2311) GM Obregon Rivero, J (2529) 1-0
1.e4 c5 2.Nf3 e6 3.g3 Nc6 4.Bg2 Nf6 5.Qe2 d5 6.exd5 Nxd5 7.O-O Be7 8.Nc3 O-O 9.Rd1 Nc7 10.d4 cxd4 11.Bf4 Re8 12.Bxc7 Qxc7 13.Nxd4 Nxd4 14.Rxd4 a6 15.Rad1 Rb8 16.Ne4 e5 17.Nd6 exd4 18.Nxe8 Qc5 19.b4 Qg5 20.Rxd4 Be6 21.Nc7 Bxa2 22.Bd5 Bxd5 23.Nxd5 Bf8 24.c4 h6 25.Kg2 Rd8 26.Qf3 Rd6 27.Rg4 Qd8 28.Rd4 Re6 29.Rf4 Qd7 30.Qg4 Qc6 31.Qf3 Qd7 32.Qg4 Qc6 33.Qf3 f6 34.b5 axb5 35.cxb5 Qd6 36.Rf5 Re1 37.Nf4 Qd1 38.Qxb7 Rg1+ 39.Kh3 Qf1+ 40.Kg4 Qxf2 41.Qd5+ Kh7 42.Qd3 Qf1 43.Qxf1 Rxf1 44.Ne6 h5+ 45.Rxh5+ Kg8 46.Rd5 Be7 47.h4 Kf7 48.Nf4 g5 49.hxg5 fxg5 50.Rf5+ Ke8 51.Ng6 Rxf5 52.Kxf5 Bd6 53.g4 Kd7 54.Kxg5 Kc7 55.Kf5 Kb6 56.g5 Kxb5 57.Ne5 Be7 1-0
2021.07.22 III Fenamac GpA 2021
1606231 GM Obregon Rivero, J (2529) FM Schwartz, Y (2258) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Re1 Nf6 6.c3 a6 7.Bf1 Bg4 8.d4 cxd4 9.cxd4 Bxf3 10.gxf3 g6 11.d5 Nb8 12.f4 Bg7 13.e5 dxe5 14.fxe5 Nxd5 15.Bg2 e6 16.Nc3 Nxc3 17.bxc3 Qxd1 18.Rxd1 Nc6 19.Rb1 O-O 20.f4 Rfd8 21.Rxd8+ Rxd8 22.Kf2 Bf8 23.Rxb7 Bc5+ 24.Ke2 Na5 25.Rb1 Nc4 26.Be4 Ba3 27.Bxa3 Nxa3 28.Rb3 Nc4 29.Bd3 Rc8 30.Rb4 Na5 31.Kd2 g5 32.Bxa6 Rd8+ 33.Rd4 Rb8 34.Kc2 gxf4 35.Rxf4 Nc6 36.Re4 Rb6 37.Bd3 Rb7 38.a4 1-0
2021.07.04 II Fenamac GpA 2021
1623239 GM Obregon Rivero, J (2529) FM Gracia Alvarez, Gerardo Antonio (2292) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 Bc5 5.Bxc6 dxc6 6.Nbd2 Be6 7.O-O Nd7 8.Nb3 Bxb3 9.axb3 O-O 10.Be3 Bxe3 11.fxe3 Qe7 12.Qe1 a6 13.Nh4 g6 14.Rf3 Rad8 15.Qg3 Kh8 16.Raf1 f6 17.Qxg6 1-0
2021.07.04 II Fenamac GpA 2021
1623244 FM Benitez Lozano, J (2375) GM Obregon Rivero, J (2529) 1-0
1.c4 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Bg5 Nh5 10.Re1 h6 11.Bd2 Nf4 12.Bf1 g5 13.h3 f5 14.exf5 Bxf5 15.Ne4 Neg6 16.Rc1 Rf7 17.Bc3 b6 18.b4 g4 19.Nh2 gxh3 20.g3 Ng2 21.Bxg2 hxg2 22.Qh5 b5 23.cxb5 Ne7 24.Rcd1 Qd7 25.a4 Raf8 26.f3 Bg6 27.Qh4 a6 28.Kxg2 axb5 29.a5 Qd8 30.Bb2 Qa8 31.Ng4 h5 32.Ne3 Rxf3 33.Bc1 c6 34.Rf1 cxd5 35.Nxd6 d4 36.Kh2 dxe3 1-0
2021.07.03 II Fenamac GpA 2021
1623229 GM Obregon Rivero, J (2529) Moran, D (2172) 1-0
1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 Ngf6 11.Bf4 Qa5+ 12.Bd2 Qc7 13.O-O-O e6 14.Ne4 O-O-O 15.g3 Nc5 16.Nxc5 Bxc5 17.c4 Bd6 18.Qe2 c5 19.Bc3 Qc6 20.d5 exd5 21.Bxf6 gxf6 22.Rxd5 Qa6 23.Rhd1 Rhe8 24.Qd3 Kc7 25.Nh4 Re5 26.Rxe5 fxe5 27.Qd5 e4 28.Kb1 e3 29.fxe3 Be7 30.Qe5+ Kc8 31.Rxd8+ Kxd8 32.Nf5 Bg5 33.Qd5+ 1-0
2021.07.03 II Fenamac GpA 2021
1623234 FM Garcia Guerrero, I (2311) GM Obregon Rivero, J (2529) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.f3 O-O 10.O-O Nc6 11.Be3 1/2-1/2
2021.07.02 II Fenamac GpA 2021
1623219 GM Obregon Rivero, J (2529) FM Figueredo Losada, L (2353) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Be2 Be7 8.O-O O-O 9.f4 Qc7 10.Kh1 Nc6 11.a4 Re8 12.g4 Nxd4 13.Bxd4 e5 14.Be3 exf4 15.Rxf4 Be6 16.g5 Nd7 17.Nd5 Bxd5 18.Qxd5 Ne5 19.Rf2 Qc6 20.Qxc6 bxc6 21.b3 f6 22.gxf6 Bxf6 23.Rd1 Bh4 24.Rg2 Be7 25.Bb6 Bd8 26.Bd4 Bc7 27.Bc4+ Kh8 28.Rf1 Re7 29.Bxa6 Rae8 30.Bxe5 dxe5 31.Rgf2 h6 32.Rf8+ Rxf8 33.Rxf8+ Kh7 34.Bb7 Bb6 35.Ba6 Bd4 36.Bc4 g5 37.a5 h5 38.Rc8 g4 39.Rxc6 h4 40.Be6 Kg6 41.c3 Ba7 42.Bxg4+ Kg5 43.Bf5 Kf4 44.Kg2 Re8 45.Rc7 Be3 46.Rg7 Bd2 47.Kf2 1-0
2021.07.02 II Fenamac GpA 2021
1623224 FM Medina Diaz, Rafael Alejandro (2299) GM Obregon Rivero, J (2529) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.Re1 Nf6 7.c3 g6 8.d4 cxd4 9.cxd4 d5 1/2-1/2
2021.07.01 II Fenamac GpA 2021
1623209 GM Obregon Rivero, J (2529) IM Sanchez Enriquez, O (2324) 1-0
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Nge7 6.Na3 cxd4 7.cxd4 Nf5 8.Nc2 Bd7 9.Bd3 Qb6 10.O-O a5 11.a3 a4 12.Bxf5 exf5 13.Re1 h6 14.Bd2 Be6 15.Bc3 Be7 16.Re2 Qb5 17.Nfe1 f4 18.Qd3 Qxd3 19.Nxd3 g5 20.f3 Na5 21.Bxa5 Rxa5 22.Ncb4 Kd7 23.Rc1 Rc8 24.Rxc8 Kxc8 25.Rc2+ Kd7 26.Nc5+ Bxc5 27.dxc5 d4 28.Kf2 Bb3 29.Rc1 Ke6 30.Ke2 Ra8 31.Kd3 Kxe5 32.c6 bxc6 33.Nxc6+ Kd5 34.Nb4+ Ke5 35.Rc5+ Kf6 36.Nc6 Rc8 37.Kxd4 Re8 38.Re5 Rc8 39.Rf5+ Ke6 40.Rc5 Kd6 41.Na5 Re8 42.Nxb3 axb3 43.Rd5+ Kc6 44.Re5 1-0
2021.07.01 II Fenamac GpA 2021
1623214 IM Otero Acosta, D (2370) GM Obregon Rivero, J (2529) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 Bg4 6.Be2 O-O 7.Be3 Nfd7 8.O-O e5 1/2-1/2
2021.06.30 II Fenamac GpA 2021
1623204 FM Tapie, P (2290) GM Obregon Rivero, J (2529) 0-1
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Qf3 Nf6 8.O-O-O Bb4 9.Na4 O-O 10.Nxc6 bxc6 11.Nb6 Rb8 12.Nxc8 Rfxc8 13.a3 Be7 14.Bxa6 Rd8 15.Bc4 d5 16.Bd3 Rxb2 17.Kxb2 Bxa3+ 0-1
2021.05.09 I Fenamac Efideporte GpA
1687334 GM Obregon Rivero, J (2520) FM Benitez Lozano, J (2367) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Be7 6.d4 Na5 7.Be2 d6 8.Qa4+ c6 9.dxe5 dxe5 10.Nxe5 1/2-1/2
2021.05.09 I Fenamac Efideporte GpA
1687339 FM Garcia Guerrero, I (2322) GM Obregon Rivero, J (2520) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nf6 6.Nc3 g6 7.d4 cxd4 8.Nxd4 Bg7 9.O-O O-O 10.f3 Rc8 11.b3 d5 12.exd5 Nxd5 13.Nxd5 e6 14.Be3 exd5 15.cxd5 Qxd5 16.Ne2 Qe6 17.Bc1 1/2-1/2
2021.05.08 I Fenamac Efideporte GpA
1687325 GM Obregon Rivero, J (2520) IM Capo Vidal, U (2334) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 Nf6 4.Nc3 Qc7 5.O-O Nd4 6.Re1 a6 7.Bf1 e5 8.Nd5 Nxd5 9.exd5 d6 10.Nxd4 cxd4 11.c3 dxc3 12.bxc3 Be7 13.c4 O-O 14.d4 f5 15.Qb3 Kh8 16.Rb1 e4 17.Qb6 Qd7 18.Ba3 Rf6 19.Qb3 Bd8 20.f3 Ba5 21.Re2 Qf7 22.Rf2 exf3 23.Qxf3 f4 24.Bd3 h5 25.Be4 Bg4 26.Qd3 Re8 27.Rbf1 Qe7 28.Bf3 Qe3 29.Qxe3 fxe3 30.Re2 Bxf3 31.Rxf3 Bc3 32.Rxf6 gxf6 33.Bxd6 Bxd4 34.Bc7 Re7 35.Bd6 Re8 36.Kf1 Kg7 37.Rc2 Kf7 38.c5 b5 39.Ke2 a5 40.c6 b4 41.Rc4 Bb6 42.Bg3 f5 43.c7 Rc8 44.Be5 Ke7 45.Rc6 Ba7 46.Rh6 1-0
2021.05.08 I Fenamac Efideporte GpA
1687330 FM Cardoso Cardoso, Jose Gabriel (2411) GM Obregon Rivero, J (2520) 1/2-1/2
1.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5 5.Bf4 c6 6.e3 Nf6 7.Bd3 Bg4 8.f3 Be6 9.Bg3 O-O 10.Nge2 c5 11.O-O Nc6 12.Kh1 Qd7 13.Qd2 cxd4 1/2-1/2
2021.05.07 I Fenamac Efideporte GpA
1687315 GM Obregon Rivero, J (2520) GM Henriquez Villagra, C (2600) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 Bg4 4.h3 Bxf3 5.Qxf3 e6 6.d3 Nf6 7.Be2 Bd6 8.O-O Bc7 9.Rd1 d4 10.Nb1 Nbd7 11.h4 h6 12.Qh3 Nc5 13.f4 e5 14.fxe5 Bxe5 15.Nd2 Ne6 16.Nc4 Qc7 17.Nxe5 Qxe5 18.Rf1 Qc5 19.Rf5 Qe7 20.Bd2 O-O-O 21.Raf1 Rdf8 22.Qf3 h5 23.Be1 Rh6 24.a3 Rg6 25.Qh3 Rh8 26.Bb4 Qc7 27.e5 Ng4 28.Bd6 Qa5 29.b4 Qd5 30.Bf3 Qa2 31.Rxf7 Ne3 32.Rc7+ Kd8 33.Rxb7 Qxc2 34.Rb8+ Kd7 35.Rxh8 Nxf1 36.Qf5 1-0
2021.05.07 I Fenamac Efideporte GpA
1687320 GM Shabalov, A (2528) GM Obregon Rivero, J (2520) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 b6 13.Kh1 Rb8 14.Nc4 Ba6 15.Bd3 Qd7 16.Ne3 Bc8 17.Rb1 a6 18.b4 Nh5 19.Qc2 cxb4 20.Rxb4 a5 21.Rb1 Qd8 22.Nc4 Qh4 23.Ne2 Nxd5 24.g3 Qh3 25.Rg1 Nb4 26.Rxb4 axb4 27.Nxd6 Rd8 28.Qc7 Qd7 29.Qxb8 Ba6 0-1
2021.05.06 I Fenamac Efideporte GpA
1687305 GM Obregon Rivero, J (2520) IM Sanchez Enriquez, O (2342) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.c3 a5 7.a4 h6 8.Be3 Ba7 9.Nbd2 O-O 10.Re1 Nh5 11.g3 Nf6 12.Nh4 Be6 13.Qf3 Qd7 14.Nf5 Bxf5 15.exf5 d5 16.Bb5 Qd6 17.Bxc6 bxc6 18.Bxa7 Rxa7 19.Re2 Rb7 20.b3 Nd7 21.d4 exd4 22.cxd4 Rb4 23.Qc3 Qf6 24.Rc1 Qxf5 25.Qxc6 Rxd4 26.Rce1 Nf6 27.Qxc7 Rc8 28.Qxa5 Rc2 29.Nf1 Rxe2 30.Rxe2 Qb1 31.Qc5 Rd1 32.Qc8+ Kh7 33.Qc2+ Ne4 34.Qxb1 Rxb1 35.a5 Rxb3 36.Ra2 Rb7 37.Nd2 Nc5 38.Rc2 Rb5 39.Ra2 Na6 40.Nf3 Kg6 41.Nd4 Rb4 42.Nc6 Rb1+ 43.Kg2 Kf6 44.Rc2 Ra1 45.Rb2 Nc5 46.Rb5 Ne4 47.Rxd5 Ra2 48.Rd4 Kf5 49.Rd5+ Kf6 50.Rd4 Kf5 51.Kf3 Ra3+ 52.Ke2 Nc3+ 53.Kf1 Ne4 54.Rd5+ Kf6 55.Re5 Nc3 56.Re3 Ra1+ 57.Kg2 Nd5 58.Rd3 Ke6 59.Nd8+ Ke5 60.Nxf7+ Ke4 61.Rd2 Nb4 62.Nd6+ Ke5 63.Nc4+ Ke4 64.f3+ Kf5 65.Rd6 Ra2+ 66.Kh3 h5 67.Rd4 Nc2 68.Rd2 g5 69.Rxc2 1-0
2021.05.06 I Fenamac Efideporte GpA
1687310 GM Ibarra Chami, L (2447) GM Obregon Rivero, J (2520) 1/2-1/2
1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.e4 d6 7.Be2 O-O 8.Be3 Nc6 9.O-O Bd7 10.Qd2 Nxd4 11.Bxd4 Bc6 12.Bd3 a5 13.Rfe1 Ng4 14.Be2 Nf6 15.Bd3 Ng4 16.Bxg7 Kxg7 17.Be2 Nf6 18.Bd3 Ng4 19.Be2 Nf6 20.Bd3 1/2-1/2
2021.05.05 I Fenamac Efideporte GpA
1687300 GM Yermolinsky, A (2486) GM Obregon Rivero, J (2520) 1/2-1/2
1.Nf3 g6 2.d4 Nf6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Bd7 10.Re1 Nxd4 11.Bxd4 Bc6 12.Bd3 a5 13.Qd2 Ng4 14.Bxg7 Kxg7 15.Be2 Nf6 16.Bf1 a4 17.Rad1 Qa5 18.g3 Rfd8 19.Nd5 Qxd2 20.Rxd2 Bxd5 21.exd5 Rd7 22.Re3 Rc7 23.Be2 Kf8 24.Kg2 Nd7 25.Ra3 Nb6 26.Rd4 Rac8 27.Rc3 Rc5 28.h4 h6 29.g4 g5 30.hxg5 hxg5 31.Rh3 Kg7 32.b3 axb3 33.axb3 Rh8 34.Rxh8 Kxh8 35.Re4 Rc7 36.Bd3 Kg7 37.Re3 Kf8 38.Bf5 Nd7 39.Bxd7 Rxd7 40.Kg3 b5 41.f4 bxc4 42.bxc4 Rc7 43.Re4 gxf4+ 44.Kxf4 Ra7 45.g5 Ra1 46.Kf5 Rf1+ 47.Kg4 Ke8 48.Kg3 Kd7 49.Kg4 Rg1+ 50.Kf5 Rg2 51.Kf4 e5+ 52.dxe6+ fxe6 53.Re3 Rc2 54.g6 Rg2 55.Rg3 1/2-1/2
2021.04.03 Titled Arena Apr 3rd 2021
1706245 GM Obregon Rivero, J (2520) IM Mischuk, D (2370) 0-1
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 b6 8.Bb5+ Bd7 9.Bd3 Ba4 10.O-O c4 11.Be2 Na6 12.h4 Qd7 13.h5 h6 14.Nh2 O-O-O 15.Ra2 Nc7 16.Bd2 Kb7 17.Qb1 Ka6 18.Qb4 Rhe8 19.g4 Qb5 20.Rb1 Qxb4 21.axb4 b5 22.Rba1 Kb6 23.f4 Ra8 24.Nf3 g6 25.hxg6 fxg6 26.Kg2 h5 27.Nh4 hxg4 28.Kg3 Nf5+ 29.Kxg4 Nxh4 30.Kxh4 Rh8+ 31.Kg3 Rh6 32.Bg4 Rh7 33.Rb2 Rah8 34.Be3 Rh1 35.Rba2 Rxa1 36.Rxa1 Bxc2 37.Rc1 Bf5 38.Bf3 a5 39.bxa5+ Kxa5 40.Ra1+ Kb6 41.Rg1 Na6 42.Rb1 Bxb1 43.f5 Bxf5 44.Bg5 b4 45.Bf6 Rh3+ 46.Kg2 Rxf3 47.Kxf3 bxc3 48.Ke3 Nb4 49.Be7 Na2 50.Ba3 c2 51.Kd2 c1=Q+ 52.Bxc1 Nxc1 53.Kxc1 c3 54.Kd1 Kb5 55.Ke1 Kc4 56.Kf2 c2 57.Kg3 c1=Q 58.Kh4 Qf4# 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1709078 IM Ulko, J (2437) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.exd5 Re8 10.Bd3 Bg4 11.h3 Bxf3 12.Qxf3 Nbd7 13.Bf4 Ne5 14.Bxe5 Rxe5 15.Rfe1 Qe7 16.Re2 Re8 17.Rae1 Rxe2 18.Rxe2 Qd8 19.b3 Rxe2 20.Qxe2 Qe8 21.Nb5 Qxe2 22.Bxe2 Ne4 23.Nxa7 Nc3 24.Kf1 Nxa2 25.Nc8 Bf8 26.Nb6 Nb4 27.g4 Nc2 28.g5 Nd4 29.Bd1 Be7 30.h4 Nf5 31.Bg4 Nxh4 32.f4 f5 33.Be2 h6 34.Nc8 Bf8 35.Kf2 hxg5 36.fxg5 f4 37.Bg4 Kg7 38.Nb6 Be7 39.Nc8 Kf8 40.Bd7 Nf5 41.Bxf5 gxf5 42.Kf3 Bxg5 43.Nxd6 b6 44.Nxf5 Ke8 45.Nd6+ Kd7 46.Ne4 Bh6 47.Kg4 Ke7 48.Nd2 Kf6 49.Nf3 Kg6 50.Ne5+ Kf6 51.Nd7+ Ke7 52.Nxb6 Kd6 53.Kf3 Ke5 54.Na4 Kd4 55.d6 Bg5 56.d7 Be7 57.Kxf4 Kd3 58.Nxc5+ Kc3 59.Ke5 Kb4 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706523 GM Obregon Rivero, J (2520) GM Vasquez Schroeder, R (2456) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4 h6 8.h4 h5 9.g5 Ng4 10.Qd2 Nxe3 11.Qxe3 Nc6 12.O-O-O Qb6 13.f4 Bd7 14.Bg2 g6 15.Rhe1 Bg7 16.e5 dxe5 17.Nxc6 Qxe3+ 18.Rxe3 exf4 19.Rxd7 fxe3 20.Re7+ Kf8 21.Rxb7 Rc8 22.Kd1 Bxc3 23.bxc3 Kg7 24.Ke2 Rhe8 25.Kxe3 e5 26.Bd5 Rf8 27.c4 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706289 GM Obregon Rivero, J (2520) GM Chigaev, M (2631) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 g6 5.Nf3 Bg7 6.Bc4 Nc6 7.e5 Nh6 8.Bf4 O-O 9.O-O d6 10.exd6 Bg4 11.dxe7 Nxe7 12.h3 Qxd1 13.Raxd1 Bxf3 14.gxf3 Nhf5 15.Nd5 Rac8 16.Nxe7+ Nxe7 17.b3 Nf5 18.Rd7 b6 19.Rxa7 Bd4 20.Bd3 Nh4 21.Be4 Rfe8 22.Bg5 Rxe4 23.fxe4 Nf3+ 24.Kg2 Nxg5 25.Rd1 Ne6 26.Re7 Bf6 27.Rb7 Rc2 28.Rdd7 Nf4+ 29.Kf3 Be5 30.Kg4 h5+ 31.Kg5 Ne6+ 32.Kh4 Rxf2 33.a4 Rf3 34.Rxf7 Bg3# 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1708849 GM Obregon Rivero, J (2520) GM Chigaev, M (2631) 1-0
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd8 4.d4 Nf6 5.Bc4 Bg4 6.Nf3 e6 7.h3 Bxf3 8.Qxf3 c6 9.Be3 Nbd7 10.O-O Be7 11.Ne4 O-O 12.c3 Nxe4 13.Qxe4 Nf6 14.Qf3 Qc7 15.a4 a5 16.Rfe1 Bd6 17.Rad1 Rfe8 18.g3 Rad8 19.Kg2 Nd5 20.Bg5 Be7 21.Bc1 Bd6 22.h4 Qb8 23.h5 h6 24.Bd3 Be7 25.Bc2 Qc7 26.Re4 Bd6 27.Qd3 f5 28.Ree1 Qf7 29.Qf3 Nf6 30.Bb3 Nxh5 31.d5 cxd5 32.Rxd5 Kh8 33.Rxa5 b6 34.Rb5 Bc5 35.Rh1 Nf6 36.Bc2 Ng4 37.Rf1 Qh5 38.Rh1 Qg6 39.Rxc5 bxc5 40.b4 cxb4 41.cxb4 Rc8 42.Bb3 e5 43.b5 e4 44.Qf4 e3 45.f3 e2 46.Re1 Rxc1 47.Qxc1 Ne3+ 48.Kf2 f4 49.g4 Qg5 50.Rh1 Qe5 51.Qd2 e1=Q+ 52.Rxe1 Qe7 53.Rh1 Qc5 54.Rxh6+ gxh6 55.Qb2+ Kh7 56.Qb1+ Nc2+ 57.Kf1 Rc8 58.Bxc2+ Qxc2 59.Qxc2+ Rxc2 60.b6 Rb2 61.a5 Rb5 62.Ke1 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1707317 GM Har Zvi, R (2513) GM Obregon Rivero, J (2520) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.g3 O-O 5.Bg2 c5 6.O-O Nc6 7.d4 cxd4 8.Nxd4 Qb6 9.Nc2 d6 10.Rb1 Be6 11.b3 Rfc8 12.Ne3 Rab8 13.Bb2 Qa5 14.Ba1 a6 15.a4 Nd7 16.Qd2 Qd8 17.Rfd1 Nc5 18.b4 Nd7 19.Ncd5 Nce5 20.Rdc1 Nb6 21.Nxb6 Qxb6 22.a5 Qd8 23.Bd5 Bxd5 24.Qxd5 Rc7 25.f4 Nd7 26.Bxg7 Kxg7 27.Rc2 Nf6 28.Qd4 e5 29.fxe5 dxe5 30.Qxe5 Re7 31.Qc3 Kg8 32.Qxf6 Rxe3 33.Qxd8+ Rxd8 34.b5 Ra3 35.bxa6 bxa6 36.c5 Rxa5 37.c6 Rc8 38.c7 Re5 39.Rd1 Ree8 40.Rd7 Kf8 41.Rcd2 Re7 42.Rd8+ Re8 43.Rxc8 Rxc8 44.Rd8+ Ke7 45.Rxc8 Kd7 46.Ra8 Kxc7 47.Rxa6 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706806 GM Ter Sahakyan, S (2645) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.O-O c6 7.Re1 b5 8.Bf1 b4 9.Nb1 Nfd7 10.a3 bxa3 11.Nxa3 Qc7 12.Nc4 d5 13.exd5 cxd5 14.Nce5 e6 15.Bf4 Qb7 16.Qc1 Nc6 17.Nxc6 Qxc6 18.Bh6 a5 19.Ra3 a4 20.Rc3 Qb6 21.Ra3 Qc6 22.Bxg7 Kxg7 23.Ne5 Nxe5 24.dxe5 Ba6 25.Rh3 h5 26.Rxh5 Rh8 27.Rxh8 Rxh8 28.Bxa6 Qxa6 29.Qf4 Qb6 30.b3 axb3 31.Qf6+ Kg8 32.cxb3 Qc7 33.h4 Rh5 34.g4 Rh8 35.b4 Kh7 36.Re3 Rb8 37.h5 g5 38.Qxg5 Qc1+ 39.Kg2 Rg8 40.Qf4 Rg7 41.Rf3 Qxf4 42.Rxf4 Kh6 43.b5 Kg5 44.Rb4 Rg8 45.b6 Rb8 46.b7 d4 47.Kg3 d3 48.f4+ Kh6 49.Rd4 d2 50.Rxd2 Rxb7 51.Rd8 Kg7 52.Kh4 Rb1 53.Kg5 Rg1 54.h6+ Kh7 55.Rf8 Ra1 56.Rxf7+ Kg8 57.Rg7+ Kh8 58.f5 Rg1 59.Re7 exf5 60.Kxf5 Rf1+ 61.Kg6 Rf8 62.Rh7+ Kg8 63.Rg7+ 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1708598 GM Obregon Rivero, J (2520) IM Vazquez, Guillermo (2527) 0-1
1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.c4 dxc4 5.Qa4+ Nd7 6.Qxc4 Ngf6 7.d4 O-O 8.O-O a6 9.e3 b5 10.Qe2 Bb7 11.Nc3 c5 12.Rd1 Qb6 13.e4 cxd4 14.Nxd4 Ne5 15.Nf3 Nfg4 16.h3 Nxf3+ 17.Bxf3 Ne5 18.Bg2 Rac8 19.Be3 Qa5 20.Bd4 Rfd8 21.Kh1 Nc4 22.Bxg7 Kxg7 23.Nd5 e6 24.Ne3 Nd2 25.e5 Bxg2+ 26.Kxg2 Qb4 27.Ng4 h5 28.Nf6 Qxb2 29.Nxh5+ gxh5 30.Qxh5 Qc2 31.Rac1 Qe4+ 32.f3 Qe2+ 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1706570 CM Piliposyan, Robert (2161) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nc3 Nc6 3.Bb5 Nd4 4.Nf3 e6 5.O-O a6 6.Bd3 Nxf3+ 7.Qxf3 Qc7 8.Qg3 Qxg3 9.hxg3 b5 10.b3 d6 11.a4 b4 12.Nd1 Bb7 13.Bb2 a5 14.Ne3 Nf6 15.f3 Be7 16.Nc4 O-O 17.g4 Nd7 18.Rae1 Rfe8 19.f4 d5 20.exd5 exd5 21.Ne5 Nf6 22.Bb5 Rec8 23.Nd7 Bd8 24.g5 Ne4 25.d3 Nd6 26.f5 Bc7 27.f6 Nxb5 28.axb5 g6 29.b6 Bd6 30.Be5 Rc6 31.Bxd6 Rxd6 32.Re7 Bc6 33.Ne5 Rf8 34.b7 Re6 35.Rxe6 Bxb7 36.Re7 Bc8 37.Re1 Be6 38.Nc6 h6 39.gxh6 Kh7 40.R1xe6 Kxh6 41.Re3 Kg5 42.R7e5+ Kxf6 43.Rxd5 c4 44.dxc4 Rc8 45.Nxa5 Ra8 46.Rb5 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706836 GM Obregon Rivero, J (2520) GM Durarbayli, V (2606) 1-0
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6 7.O-O a6 8.Qe2 Bd7 9.Rd1 Qc7 10.Bf4 Ne5 11.Bb3 Bc6 12.Rac1 f6 13.Nd5 exd5 14.exd5 Ne7 15.dxc6 N7xc6 16.Qe4 Be7 17.Nd4 O-O-O 18.Bxe5 dxe5 19.Nxc6 Rxd1+ 20.Bxd1 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1707608 GM Obregon Rivero, J (2520) IM Muradli, Mahammad (2449) 0-1
1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.Nf3 d5 5.h3 dxe4 6.Nxe4 Nf6 7.Nxf6+ exf6 8.Bc4 O-O 9.O-O Nd7 10.c3 Nb6 11.Bb3 h5 12.Re1 Bd7 13.Nd2 Qc7 14.Ne4 Rae8 15.Bd2 Nd5 16.Qf3 Bf5 17.Nc5 b6 18.Nd3 Qd7 19.Nf4 Nxf4 20.Bxf4 Be6 21.Re3 c5 22.dxc5 bxc5 23.Rd1 Qc8 24.Bd6 Bxb3 25.axb3 Rxe3 26.Qxe3 Rd8 27.Rd2 Qf5 28.Bf4 Rc8 29.Bg3 Kh7 30.Qd3 Qg5 31.Qd7 Rf8 32.Rd5 Qc1+ 33.Kh2 Qxb2 34.Bd6 Rg8 35.Qxf7 Qxf2 36.Bg3 Qe3 37.c4 Qxb3 38.Bf4 Rf8 39.Qe6 Qb7 40.Rd7 Qb1 41.Qe7 Rg8 42.Qxf6 Qf5 43.Qxf5 gxf5 44.Rxa7 Kg6 45.Ra6+ Kf7 46.Ra7+ Kg6 47.Ra6+ Kf7 48.Rc6 Bd4 49.Rh6 Rd8 50.Rxh5 Re8 51.Rh7+ Kg6 52.Rh6+ Kf7 53.Rc6 Ke7 54.Rc7+ Kd8 55.Rc6 Kd7 56.Rxc5 Kd8 57.Rd5+ Ke7 58.Rxd4 Ke6 59.Re4+ Kf7 60.Re6 Kxe6 61.Kg3 Kd7 62.Kh2 Kc6 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707101 CM Papasimakopoulos, Alexandros (2251) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.f3 d6 6.Nge2 c5 7.d5 e6 8.Ng3 exd5 9.cxd5 Re8 10.Be2 a6 11.a4 Nbd7 12.O-O Qc7 13.Re1 Rb8 14.Nf1 c4 15.a5 b5 16.axb6 Rxb6 17.Ne3 Ne5 18.Qc2 Nfd7 19.Na4 Rb4 20.Bd2 Rb8 21.Nxc4 Nxc4 22.Qxc4 Qa7+ 23.Kh1 Ne5 24.Qc2 Bd7 25.Bf1 Rec8 26.Nc3 a5 27.Be3 Qb7 28.Rxa5 Qxb2 29.Qxb2 Rxb2 30.Nb5 Bxb5 31.Rxb5 Rb3 32.Rxb3 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706084 FM Skatchkov, Valery (2283) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 c5 6.d5 b5 7.cxb5 d6 8.O-O a6 9.bxa6 Bxa6 10.Nc3 Nbd7 11.Rb1 Qa5 12.Bd2 Ng4 13.a4 Qb6 14.b3 Rfb8 15.Qc2 Nge5 16.Rfe1 Qc7 17.Bg5 h6 18.Bxe7 Re8 19.Bh4 g5 20.Nxg5 hxg5 21.Bxg5 Rab8 22.Ne4 Ng6 23.h4 f5 24.Nd2 Rf8 25.h5 Nge5 26.h6 Bf6 27.Bf4 Bh8 28.Bh3 Nf6 29.Bxf5 Bc8 30.Kg2 Bxf5 31.Qxf5 Qh7 32.Qe6+ Qf7 33.Nc4 Nxd5 34.Qxf7+ Nxf7 35.Bxd6 Nxd6 36.Nxd6 Rfd8 37.Ne4 Nc3 38.Nxc3 Bxc3 39.Rec1 Bb4 40.Rc4 Kh7 41.Rh1 Re8 42.e3 Rbd8 43.Rf4 Re7 44.a5 Bxa5 45.g4 Rg8 46.Kf3 Bc7 47.Rf5 Bd6 48.Rd1 Re6 49.Rdd5 Rxh6 50.e4 Rhg6 51.g5 Be7 52.Kg4 R6g7 53.f4 Re8 54.Rde5 c4 55.bxc4 Rd8 56.Re6 Rd1 57.Rh6+ Kg8 58.Re5 Rg1+ 59.Kf5 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1708648 IM Bodek, Michael H (2397) GM Obregon Rivero, J (2520) 1-0
1.c4 Nf6 2.Nc3 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 c5 6.d3 Nc6 7.Bg5 h6 8.Bd2 d5 9.cxd5 Nxd5 10.Qc1 Nxc3 11.Bxc3 Nd4 12.Nxd4 cxd4 13.Bd2 Qb6 14.Bxh6 Bxh6 15.Qxh6 Qxb2 16.O-O Qxe2 17.Rae1 Qxd3 18.Re4 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1708915 FM Prohorov, Olexandr (2086) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 Nc6 3.Nc3 g6 4.Bb5 Bg7 5.O-O Nd4 6.Re1 a6 7.Bf1 e6 8.a4 b6 9.d3 Ne7 10.Bg5 h6 11.Bh4 O-O 12.Nxd4 cxd4 13.Ne2 d5 14.exd5 g5 15.Bg3 Nxd5 16.Qd2 Bb7 17.c4 dxc3 18.bxc3 f5 19.f4 gxf4 20.Nxf4 Bxc3 21.Qe2 Nxf4 22.Bxf4 Bxa1 23.Qxe6+ Rf7 24.Rxa1 Qd4+ 25.Be3 Qxa1 26.Qg6+ Rg7 27.Qe6+ Kh8 28.d4 Rxg2+ 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1706613 FM Peyrer, Konstantin (2259) GM Obregon Rivero, J (2520) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d4 cxd4 6.Nxd4 O-O 7.c4 Nc6 8.Nc3 Qb6 9.Nb3 d6 10.Bg5 Be6 11.Bxf6 Bxf6 12.Nd5 Bxd5 13.cxd5 Ne5 14.Rc1 Rfc8 15.e4 Rxc1 16.Qxc1 Nd3 17.Qd2 Nxb2 18.Kh1 Rc8 19.f4 Nc4 20.Qe2 Qe3 21.Qg4 Rc7 22.h4 h5 23.Qh3 a5 24.f5 g5 25.hxg5 Qxg5 26.a4 Ne3 27.Rf3 Rc3 28.Nd2 Rc2 29.Rf2 Ng4 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707893 GM Obregon Rivero, J (2520) FM Skatchkov, Valery (2283) 1/2-1/2
1.e4 e5 2.Nf3 d5 3.Nxe5 Bd6 4.d4 dxe4 5.Bc4 Bxe5 6.dxe5 Qxd1+ 7.Kxd1 Nc6 8.Bb5 Ne7 9.Nc3 Bf5 10.Bg5 Rd8+ 11.Ke1 h6 12.Bxe7 Kxe7 13.Bxc6 bxc6 14.g4 Bg6 15.Rd1 Ke6 16.Rxd8 Rxd8 17.Ke2 Kxe5 18.Ke3 Bh7 19.Rd1 Rxd1 20.Nxd1 g6 21.Nc3 f5 22.gxf5 gxf5 23.Ne2 Bg8 24.a3 Bf7 25.Nf4 Be8 26.Ne2 Bf7 27.h4 Bh5 28.Nf4 Bf7 29.Ng2 a5 30.b3 Bh5 31.c3 Bd1 32.b4 a4 33.Nf4 Bb3 34.Ng6+ Kf6 35.h5 Bf7 36.Nf4 Ke5 37.f3 exf3 38.Kxf3 Be8 39.Ke3 Bf7 40.Nd3+ Kf6 41.Nc5 Bxh5 42.Nxa4 Bd1 43.Nc5 h5 44.a4 h4 45.a5 h3 46.Kf2 Be2 47.a6 Bxa6 48.Nxa6 Ke5 49.Nxc7 Ke4 50.c4 Kd4 51.c5 Kc4 52.Na6 Kb5 53.Nb8 Kxb4 54.Nxc6+ Kxc5 55.Ne7 Kd4 56.Nxf5+ Ke4 57.Kg3 h2 58.Kxh2 1/2-1/2
2021.04.03 Titled Arena Apr 3rd 2021
1708408 GM Chigaev, M (2631) GM Obregon Rivero, J (2520) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.b3 O-O 6.Bb2 Nc6 7.c4 b6 8.Ne5 Bb7 9.Nxc6 Bxc6 10.Bxc6 dxc6 11.Nc3 Qd7 12.Kg2 Rad8 13.d3 e5 14.Qc2 Ne8 15.Rad1 Nc7 16.e3 Ne6 17.Qe2 Rfe8 18.f3 h5 19.h4 f5 20.Qf2 Qe7 21.Ne2 Qf7 22.Kh2 Rd7 23.Rd2 Red8 24.Rfd1 e4 25.Bxg7 exd3 26.Bc3 dxe2 27.Qxe2 Rxd2 28.Rxd2 Rxd2 29.Qxd2 Qe7 30.Kg2 Qd8 31.Qxd8+ Nxd8 32.g4 Kf7 33.Kg3 Ne6 34.Be5 a6 35.a4 b5 36.a5 fxg4 37.fxg4 Ke7 38.gxh5 gxh5 39.Kf3 Kf7 40.Ke4 Kg6 41.Bg3 Kf7 42.Kf5 Nd8 43.Ke5 Nb7 44.e4 bxc4 45.bxc4 Nxa5 46.Kd6 Nxc4+ 47.Kxc5 Nd2 48.Kd4 a5 49.Kd3 Nf3 50.Ke3 Ng1 51.Bf2 Nh3 52.Bg3 a4 53.Be5 Ke6 54.Bc3 c5 55.Kf3 Ng1+ 56.Kf2 Nh3+ 57.Kg3 Ng1 58.Kf2 Nh3+ 59.Kg3 Ng1 60.Kf2 1/2-1/2
2021.04.03 Titled Arena Apr 3rd 2021
1707392 GM Firouzja, Alireza (2759) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 Nc6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6 6.Be3 cxd4 7.cxd4 e6 8.Nc3 Qd8 9.Bd3 Be7 10.O-O O-O 11.Rc1 b6 12.Bb1 Bb7 13.Re1 Rc8 14.Bg5 Nb4 15.a3 Nbd5 16.Qd3 Nxc3 17.bxc3 g6 18.Ne5 Nd7 19.Bxe7 Nxe5 20.Rxe5 Qxe7 21.c4 Rfd8 22.Qe3 Qd6 23.d5 exd5 24.h4 d4 25.Qf4 Rc5 26.Re8+ Kg7 27.Qxd6 Rxd6 28.Re7 Bc6 29.Rxa7 d3 30.Rd1 d2 31.Ba2 Be4 32.Bb3 b5 33.cxb5 Rxb5 34.Bxf7 Rb7 35.Rxb7 Bxb7 36.Bb3 Ba6 37.Rb1 Bd3 38.Rb2 Be2 39.f3 d1=Q+ 40.Bxd1 Bxd1 41.Kf2 Ra6 42.Rb4 Rxa3 43.Rb7+ Kg8 44.Rb8+ Kf7 45.Rb7+ Kf6 46.Rxh7 Ra2+ 47.Kg3 Be2 48.Kf2 Bc4+ 49.Kg1 Be6 50.Rc7 Ra1+ 51.Kh2 Ra2 52.Kg3 Ra5 53.Rc3 Rd5 54.Re3 Rc5 55.Kf2 Rc4 56.g4 Rc2+ 57.Kg3 Rc1 58.Re4 Bd5 59.Rf4+ Ke5 60.Rf8 Rc3 61.Kf2 Kd6 62.Kg3 Ke7 63.Rf4 Ke6 64.g5 Ke5 65.Rf6 Be6 66.Kf2 Bf5 67.Kg3 Kd5 68.Kf2 Kd4 69.Kg3 Kd3 70.h5 Kd2 71.h6 Rxf3+ 72.Kxf3 Be4+ 73.Kf4 Bd5 74.Rxg6 Bc4 75.Ke5 Bd3 76.Kf6 Be2 77.h7 Ke1 78.h8=Q Kf2 79.Qg8 Bf1 80.Qf8 Kg1 81.Qe8 Bg2 82.Qe7 Kf2 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707144 GM Obregon Rivero, J (2520) IM Nozdrachev, L (2372) 1-0
1.e4 d6 2.d4 Nf6 3.Nc3 e5 4.dxe5 dxe5 5.Qxd8+ Kxd8 6.Bc4 Be6 7.Bxe6 fxe6 8.Nge2 Bc5 9.f4 Nc6 10.fxe5 Nxe5 11.Bf4 Nc4 12.O-O-O+ Ke7 13.Bxc7 Ne3 14.Rd3 Nxg2 15.Rg3 Nh4 16.Rxg7+ Kf8 17.Rg3 Bf2 18.Rf1 Bxg3 19.hxg3 Ng6 20.Rxf6+ Ke7 21.Rf3 Rhf8 22.Rd3 b6 23.Bd6+ Kf7 24.Bxf8 Kxf8 25.Nf4 Ne5 26.Rd6 Nc4 27.Rxe6 Kf7 28.Ncd5 Rg8 29.Re7+ 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1707656 GM Zakhartsov, Vl (2486) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nc3 Nc6 3.Nge2 g6 4.d4 cxd4 5.Nxd4 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 d6 9.f3 Bd7 10.g4 Nxd4 11.Bxd4 b5 12.h4 b4 13.Nd5 Nxd5 14.exd5 Bxd4 15.Qxd4 Qb6 16.Qd2 a5 17.h5 a4 18.Bc4 Qc5 19.b3 axb3 20.Bxb3 Rfc8 21.hxg6 hxg6 22.Qh6 Qc3+ 23.Kf2 Qg7 24.Rae1 Qxh6 25.Rxh6 Ba4 26.Reh1 Bxb3 27.cxb3 Kg7 28.g5 Rh8 29.Rxh8 Rxh8 30.Rxh8 Kxh8 31.Ke3 f6 32.f4 Kg7 33.Kd4 Kf7 34.Kc4 e5 35.dxe6+ Kxe6 36.gxf6 Kxf6 37.Kxb4 Kf5 38.a4 Kxf4 39.a5 g5 40.a6 g4 41.a7 g3 42.a8=Q g2 43.Qxg2 Ke3 44.Qd5 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706382 GM Andreikin, D (2725) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 O-O 8.Be2 d6 9.O-O Nxd4 10.Bxd4 Bd7 11.Qd2 Bc6 12.f3 Nd7 13.Bxg7 Kxg7 14.Kh1 a5 15.b3 Qb6 16.Rab1 Rfc8 17.Bd3 Qc5 18.Rbc1 Nf6 19.Qb2 a4 20.b4 Qd4 21.Be2 a3 22.Qb3 Bd7 23.Rcd1 Qe5 24.f4 Qe6 25.Bf3 Qxc4 26.Qxc4 Rxc4 27.Nb1 Nxe4 28.Kg1 Rxb4 29.Rfe1 Bc6 30.Re3 f5 31.Nxa3 Rba4 32.Nc2 Rxa2 33.Nd4 Ra1 34.Ree1 Rxd1 35.Rxd1 Nc3 36.Re1 Bxf3 37.Rxe7+ Kf8 38.Rxh7 Bd5 39.h4 b5 40.h5 gxh5 41.Rxh5 Ra1+ 42.Kh2 Be4 43.Nxf5 Bxf5 44.Rxf5+ Ke7 45.Rh5 b4 46.Rh7+ Ke6 47.Rb7 Nd5 48.Kg3 Ra6 49.Kg4 Rb6 50.f5+ Kf6 51.Rh7 Ne3+ 52.Kf4 Nxf5 53.g4 Nd4 54.g5+ Kg6 55.Rh6+ Kg7 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1706395 GM Obregon Rivero, J (2520) FM Jacobson, Aaron (2301) 1-0
1.e4 d6 2.d4 Bg4 3.Qxg4 Qc8 4.Qxc8# 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706922 GM Obregon Rivero, J (2520) FM Storme, Isak (2397) 0-1
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Be3 Be7 8.Qd2 O-O 9.Be2 b6 10.O-O Bb7 11.Nd1 Rc8 12.c3 f5 13.exf6 Nxf6 14.Nf2 Ne4 15.Nxe4 dxe4 16.Ng5 Bxg5 17.fxg5 cxd4 18.cxd4 Qd5 19.b3 Rfd8 20.Rad1 e5 21.Bc4 Qxc4 22.bxc4 exd4 23.Bxd4 Nxd4 24.Qe3 Ne6 25.Rxd8+ Rxd8 26.h4 Nc5 27.Qe2 Ba6 28.Qf2 Bxc4 29.Ra1 Re8 30.Qe3 Bd3 31.h5 Nd7 32.Rd1 Ne5 33.g6 hxg6 34.hxg6 Re6 35.Rxd3 Nxd3 36.Qd4 Rxg6 37.Qxe4 Rd6 38.Qe8+ Kh7 39.Qh5+ Kg8 40.Qe8+ Kh7 41.Qe7 Rd4 42.Qxa7 Rb4 43.Qd7 Nc5 44.Qf5+ Kg8 45.a3 Rb3 46.Qd5+ Kh8 47.a4 Ra3 48.Qd8+ Kh7 49.Qxb6 Nxa4 50.Qb4 Ra1+ 51.Kh2 Kh8 52.Qd4 Ra3 53.Qd8+ Kh7 54.Qh4+ Kg8 55.Qc4+ Kh8 56.Qh4+ Kg8 57.Qb4 Ra1 58.g4 Ra2+ 59.Kh3 Ra1 60.Qd4 Rh1+ 61.Kg3 Rh6 62.Qxa4 Rg6 63.Qc4+ Kh7 64.Kf4 Rf6+ 65.Kg3 Rg6 66.Kh4 Rh6+ 67.Kg3 Rf6 68.Qe4+ Kg8 69.g5 Kf7 70.gxf6 gxf6 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1708465 GM Ivic, Velimir (2581) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 Nf6 7.Nc3 O-O 8.Be2 d6 9.O-O Nd7 10.Be3 Nc5 11.f3 a5 12.Rb1 a4 13.Qd2 Qa5 14.Na3 Be6 15.Rfc1 Rfc8 16.Bf1 Nb4 17.Qf2 Nc6 18.Kh1 Ne5 19.Qd2 Qb4 20.Nd5 Qxd2 21.Bxd2 Bxd5 22.cxd5 Ned3 23.Rc2 b5 24.Nxb5 Rab8 25.Na7 Rc7 26.Nc6 Rxb2 27.Rbxb2 Nxb2 28.Bb4 Nbd3 29.a3 Kf8 30.Bc3 Rb7 31.Bb4 h5 32.g3 h4 33.Kg2 Nxb4 34.axb4 Nb3 35.Ra2 Nd4 36.Rxa4 Bf6 37.f4 Kg7 38.e5 Nc2 39.exf6+ exf6 40.Kf2 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1707707 GM Obregon Rivero, J (2520) IM Ratkovic, Miloj (2499) 1-0
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Qe2 Nxe4 6.Qxe4 Nd7 7.Bc4 Nf6 8.Ne5 e6 9.Qe2 b5 10.Bb3 Bb7 11.d3 Bd6 12.O-O O-O 13.Bg5 a5 14.a4 Qc7 15.Rae1 Nd5 16.Bh4 Nb6 17.Bg3 bxa4 18.Ba2 Rae8 19.Qg4 Nd5 20.Qxa4 h6 21.Nc4 Bxg3 22.hxg3 Ra8 23.Bb3 c5 24.Ne5 Nb6 25.Qh4 a4 26.Ba2 a3 27.bxa3 Rxa3 28.Bb3 Raa8 29.Ng4 Nd5 30.Nxh6+ gxh6 31.Qxh6 Qe7 32.Re4 f5 33.Rxe6 Qg7 34.Rg6 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706438 IM Piesik, P (2404) GM Obregon Rivero, J (2520) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.c3 O-O 6.d4 cxd4 7.cxd4 d6 8.Nc3 Nc6 9.e4 Bg4 10.Be3 Bxf3 11.Bxf3 Nd7 12.Bg2 e5 13.d5 Nd4 14.Ne2 Qb6 15.Bxd4 exd4 16.Qd2 d3 17.Qxd3 Nc5 18.Qd2 Qxb2 19.Qxb2 Bxb2 20.Rab1 Bg7 21.Nf4 b6 22.f3 Rfe8 23.Rfd1 Bh6 24.Nd3 Na4 25.Rb3 Rac8 26.Nb4 Nc3 27.Ra1 Ne2+ 28.Kf2 Nd4 29.Rd3 Nc2 30.Nxc2 Rxc2+ 31.Kg1 Bg7 32.Rb1 Rxa2 33.Rc1 b5 34.Rc7 Rb8 35.Rb3 a5 36.Bf1 b4 37.f4 a4 38.Rb1 Bd4+ 39.Kh1 b3 40.e5 dxe5 41.d6 Rd8 42.d7 Kf8 43.Bb5 b2 44.fxe5 Ra1 45.Bd3 a3 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707974 FM Peyrer, Konstantin (2259) GM Obregon Rivero, J (2520) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d4 cxd4 6.Nxd4 O-O 7.c4 Nc6 8.Nc3 Qb6 9.Nb3 d6 10.Be3 Qa6 11.Rc1 Be6 12.Nd5 Bxd5 13.cxd5 Ne5 14.Nd4 Rfc8 15.Qb3 Nc4 16.Bg5 h6 17.Nb5 Na5 18.Qa4 hxg5 19.Nc7 b5 20.Qb4 Rxc7 21.Rxc7 Qb6 22.Rfc1 Nc4 23.Rc6 Qd4 24.Qxb5 Ne5 25.e3 Qg4 26.Qb7 Rf8 27.Rc8 Rxc8 28.Rxc8+ Kh7 29.Rc7 Qd1+ 30.Bf1 Nf3+ 31.Kg2 Ne1+ 32.Kg1 Nf3+ 33.Kg2 Nxh2 34.Ba6 Nfg4 35.Kh3 Nxf2+ 36.Kg2 Nfg4 37.Kh3 Nf1 38.Rxe7 Nfxe3 39.Rxe3 Qh1+ 40.Kxg4 Qh5# 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1708760 GM Artemiev, V (2709) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.c3 O-O 7.h3 a6 8.Bxc6 bxc6 9.d4 cxd4 10.cxd4 d6 11.Nc3 Nd7 12.Be3 Rb8 13.Qd2 c5 14.Rac1 Bb7 15.Bh6 cxd4 16.Bxg7 Kxg7 17.Qxd4+ Nf6 18.e5 dxe5 19.Qxd8 Rfxd8 20.Nxe5 Nd5 21.Ne4 Nf4 22.Rc7 Bxe4 23.Rxe4 Nd5 24.Rc2 Nb4 25.Rce2 Nxa2 26.Rf4 Rd1+ 27.Kh2 f5 28.Nc6 Re8 29.Ra4 Nc1 30.Rc2 Nd3 31.Rd4 e5 32.Rd7+ Kf6 33.Rxh7 e4 34.Na5 f4 35.Nb3 e3 36.fxe3 fxe3 37.Nd4 Nf2 38.Rc6+ Ke5 39.Nf3+ Kf5 40.Rf7+ Ke4 41.Rxa6 e2 42.Kg3 Nh1+ 43.Kh4 Ke3 44.Rxg6 Rh8+ 45.Kg5 Nf2 46.Re6+ Ne4+ 47.Kg6 Rg8+ 48.Rg7 Rxg7+ 49.Kxg7 Rg1 50.Kh6 Rxg2 51.Ne1 Kf2 52.Nd3+ Kf1 53.Rxe4 Rg3 54.Rf4+ Kg2 55.Ne1+ Kh1 56.Rf3 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1708250 GM Ivic, Velimir (2581) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 Nf6 7.Nc3 d6 8.Be3 Nd7 9.Be2 O-O 10.O-O Nc5 11.Rb1 Be6 12.f3 a5 13.Nd5 a4 14.b4 axb3 15.axb3 Bxd5 16.exd5 Ne5 17.Nd4 Ncd7 18.Qd2 Nc5 19.Rfe1 Ned7 20.Bf1 Nf6 21.Nb5 Re8 22.Bg5 Ncd7 23.Kh1 Qa5 24.b4 Qa2 25.Rb2 Qa4 26.Nc7 Nxd5 27.cxd5 Bxb2 28.Nxe8 Ba3 29.Rxe7 Bxb4 30.Qe2 Ne5 31.Nf6+ Kg7 32.Rxb7 Bc5 33.Ne4 Bd4 34.Bf6+ Kg8 35.Nxd6 Nxf3 36.Qxf3 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1706715 GM Obregon Rivero, J (2520) GM Har Zvi, R (2513) 0-1
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Qe2 Nxe4 6.Qxe4 Qd5 7.Qf4 Qe6+ 8.Qe3 g6 9.b3 Bg7 10.c3 O-O 11.Ba3 Re8 12.O-O-O Qf5 13.Bb2 a5 14.d4 a4 15.Bd3 Qh5 16.h3 axb3 17.axb3 Ra2 18.g4 Qa5 19.Bb1 Be6 20.Bxa2 Qxa2 21.c4 b5 22.Ng5 Bd7 23.Kc2 bxc4 24.Ra1 Qxb3+ 25.Qxb3 cxb3+ 26.Kxb3 h6 27.Ne4 Be6+ 28.Kc2 Bd5 29.Rhe1 Nd7 30.Nc5 Nb6 31.Ra7 e6 32.Nd7 Nc4 33.Ne5 Nxb2 34.Kxb2 Rb8+ 35.Kc2 Rc8 36.Nxf7 c5 37.Nd6 Rc6 38.Ne8 Bxd4 39.Kd2 Rb6 40.Rc1 c4 41.Ra8 Bxa8 42.Nc7 Bd5 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707489 IM Ulko, J (2437) GM Obregon Rivero, J (2520) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.b3 O-O 6.Bb2 Nc6 7.c4 b6 8.d4 cxd4 9.Nxd4 Bb7 10.Nc3 Qc8 11.Rc1 Nxd4 12.Qxd4 Nd5 13.Qd2 Nxc3 14.Bxc3 Bxg2 15.Kxg2 Qc6+ 16.f3 d6 17.Bxg7 Kxg7 18.Qe3 Rfe8 19.Rfd1 Qc5 20.Qc3+ f6 21.Rd5 Qc6 22.h4 Rac8 23.h5 g5 24.Rxg5+ Kh8 25.Rd5 Rg8 26.Qe3 Rg7 27.h6 Rf7 28.Qe6 Rcf8 29.Rcd1 Qc8 30.Qe3 Rg8 31.R1d4 Rg6 32.Rh5 Qg8 33.g4 f5 34.g5 f4 35.Qe4 Rxg5+ 36.Rxg5 Qxg5+ 37.Kf1 Qxh6 38.Ke1 Qf6 39.Rd5 Kg7 40.Rh5 Qg6 41.Qd4+ e5 42.Rxe5 dxe5 43.Qxe5+ Qf6 44.Qh5 Qa1+ 45.Kf2 Qd4+ 46.Kf1 Qf6 47.Qg4+ Qg6 48.Qc8 h5 49.Qd8 Qf6 50.Qd5 Qf5 51.Qd6 h4 52.Qd4+ Qf6 53.Qd8 Qxd8 54.Kg2 Qd2 55.Kh3 Qxe2 56.Kg4 Qg2+ 57.Kxh4 Rf6 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1706211 GM Har Zvi, R (2513) GM Obregon Rivero, J (2520) 1/2-1/2
1.h3 Nf6 2.Rh2 d5 3.a3 c5 4.Rh1 Nc6 5.Ra2 e5 6.Ra1 Be6 7.d3 h6 8.Nd2 Bd6 9.g3 Qd7 10.Bg2 O-O-O 11.e4 d4 12.Nc4 Bc7 13.a4 g5 14.Ne2 Ng8 15.Bd2 Nge7 16.Nc1 f6 17.Nb3 b6 18.a5 Kb8 19.axb6 axb6 20.Qe2 Kb7 21.Ra3 h5 22.f3 h4 23.g4 Ra8 24.Kf2 Rxa3 25.Nxa3 Ra8 26.Ra1 Nb4 27.Qd1 Ng6 28.Bf1 Nf4 29.Bxf4 exf4 30.Nc4 Rxa1 31.Nxa1 Bxc4 32.dxc4 Be5 33.Bd3 Qa4 34.Qb1 Kc7 35.Ke2 Kd6 36.Nb3 Nxd3 37.Kxd3 b5 38.Nd2 Kc6 39.b3 Qa5 40.Qb2 b4 41.Qb1 Qa3 42.Ke2 d3+ 43.Kxd3 Bc3 44.Nf1 Kd6 45.Ke2 Ke6 46.Qd1 Ke7 47.Qd5 Bd4 48.Qb7+ Ke8 49.Qc6+ Ke7 50.Qc7+ Ke8 51.Qc6+ Kd8 52.Qd6+ Ke8 53.Qe6+ Kf8 54.Qd6+ Kg7 55.Qd7+ Kg8 56.Qe8+ Kg7 57.Qe7+ Kg8 58.Qe8+ Kg7 59.Ne3 Bxe3 60.Qe7+ Kg8 61.Qe8+ Kg7 62.Qe7+ Kg6 63.e5 fxe5 64.Qe8+ Kf6 65.Qd8+ Kf7 66.Qd7+ Kf6 67.Qc6+ Kf7 68.Qc7+ Ke6 69.Qb8 Ke7 70.Qc8 Kd6 71.Qc7+ Kxc7 72.Kd3 Kd6 73.Ke4 Qb2 74.Kf5 Qd4 75.Kf6 Qd2 76.Kg6 Qxc2+ 77.Kh5 Qxb3 78.Kg6 Qxc4 79.Kg7 Qe2 80.Kh7 Qxf3 81.Kh6 Qxh3 82.Kh7 Qxg4 83.Kh8 h3 84.Kg8 h2 85.Kf8 Qf5+ 86.Kg7 Qf6+ 87.Kg8 h1=Q 1/2-1/2
2021.04.03 Titled Arena Apr 3rd 2021
1707239 GM Obregon Rivero, J (2520) FM Skatchkov, Valery (2283) 0-1
1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Be7 7.Bd3 O-O 8.Bf4 Nd7 9.Qd2 Re8 10.O-O-O Nc5 11.h4 c6 12.Ng5 g6 13.h5 Nxd3+ 14.cxd3 Bf5 15.hxg6 Bxg6 16.Rh3 Qa5 17.Nxh7 Qxa2 18.Rdh1 Qa1+ 19.Kc2 Qa4+ 20.Kb1 c5 21.Bg5 Bxg5 22.Qxg5 Re2 23.Nf6+ Kg7 24.Rh7+ Kf8 25.Rh8+ Ke7 26.Ne4+ Kd7 27.Qg4+ Kc6 28.Qxe2 Rxh8 29.Rxh8 c4 30.f3 d5 31.Nf2 cxd3 32.Nxd3 Qc4 33.Kc2 d4 34.Qe8+ Kb6 35.Qd8+ Ka6 36.Qd6+ b6 37.Qxd4 Qe6 38.Qa4+ Kb7 39.Kd2 Qd6 40.Qd4 Qf4+ 41.Qxf4 Ka6 42.Qe5 Bxd3 43.Qd4 Bc4 44.Qxc4+ b5 45.Qb4 Kb6 46.Rf8 a5 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1706990 GM Obregon Rivero, J (2520) FM Figueredo Losada, L (2369) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Nc6 7.O-O Nxd4 8.Qxd4 Bg7 9.Be3 O-O 10.Qd2 Be6 11.h3 Qc7 12.Rfd1 Rfc8 13.Rac1 a6 14.Bd4 b5 15.Bf3 Rab8 16.Nd5 Bxd5 17.exd5 Nd7 18.Bxg7 Kxg7 19.Re1 Ne5 20.Be2 Qb6 21.Kf1 Rc7 22.f4 Nd7 23.Bf3 Nf6 24.Qf2 Qxf2+ 25.Kxf2 Rbc8 26.Re2 Kf8 27.Rd1 Rxc2 28.Re1 Rxe2+ 29.Rxe2 Rc5 30.Rd2 Nd7 31.Ke3 Nb6 32.b3 b4 33.Kd4 a5 34.g4 Rc1 35.Kd3 Nd7 36.Rc2 Nc5+ 37.Kd2 Rf1 38.Ke3 Re1+ 39.Re2 Rc1 40.g5 Rc3+ 41.Kf2 Nd3+ 42.Kg3 Nc1 43.Rd2 Nd3 44.Re2 Nc5 45.h4 e6 46.dxe6 fxe6 47.Kg4 Ke7 48.h5 gxh5+ 49.Kxh5 Rxf3 50.Kh6 Rxf4 51.Kxh7 Ne4 52.g6 Nf6+ 53.Kg7 Ne8+ 54.Kg8 Kf6 55.Rc2 Kxg6 56.a3 bxa3 57.Ra2 Nf6+ 58.Kf8 a4 59.Rxa3 axb3 60.Rxb3 Kf5 61.Ke7 Nd5+ 62.Kxd6 Nf6 63.Rh3 Ne4+ 64.Ke7 Ng5 65.Rh5 e5 66.Rh1 e4 67.Re1 Nf3 68.Kd6 Nxe1 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1708023 GM Obregon Rivero, J (2520) FM Lazavik, Denis (2438) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 d6 7.O-O Bb6 8.dxe5 dxe5 9.Qb3 Qf6 10.a4 Na5 11.Qa2 Nxc4 12.Qxc4 a5 13.Qb5+ Bd7 14.Qxe5+ Qxe5 15.Nxe5 Nf6 16.Nxd7 Nxd7 17.Nd2 Ne5 18.Kh1 O-O-O 19.f4 Nd3 20.Nc4 Nf2+ 21.Kg1 Nxe4+ 22.Nxb6+ cxb6 23.Be3 Rd6 24.Bd4 Nd2 25.Rfd1 Nb3 26.Bxg7 Rxd1+ 27.Rxd1 Rd8 28.Rxd8+ Kxd8 29.Bd4 Nxd4 30.cxd4 b5 31.Kf2 bxa4 32.Ke2 a3 0-1
2021.04.03 Titled Arena Apr 3rd 2021
1707768 GM Obregon Rivero, J (2520) FM Voege, Tobias (2324) 1-0
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 d6 9.f3 Nxd4 10.Bxd4 Be6 11.Qd2 Qa5 12.g4 Bxb3 13.cxb3 Rfc8 14.h4 b5 15.h5 b4 16.Nd5 Nxd5 17.Bxg7 Kxg7 18.exd5 Rh8 19.h6+ Kf8 20.O-O f6 21.Rfe1 Kf7 22.Re6 Rhe8 23.g5 f5 24.Rae1 Rac8 25.R1e2 Qc5+ 26.Kg2 Qc1 27.Qd4 Qxg5+ 28.Kf2 Qxh6 29.Qxa7 Qh2+ 30.Ke1 Qg1+ 31.Qxg1 1-0
2021.04.03 Titled Arena Apr 3rd 2021
1708285 GM Obregon Rivero, J (2520) GM Indjic, A (2607) 0-1
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O Nge7 8.Bg5 h6 9.Bh4 g5 10.Bg3 Ng6 11.e5 Bg7 12.Ne4 O-O 13.h4 g4 14.Nh2 Ngxe5 15.Bb3 f5 16.Nd6 f4 17.Nxg4 Nxg4 18.Qxg4 Ne5 19.Qh5 fxg3 20.Nxc8 gxf2+ 0-1
2021.03.30 Titled Tuesday 30th Mar
1714752 GM Obregon Rivero, J (2520) IM Winslow, E (2150) 1/2-1/2
1.Nf3 d5 2.g3 Nf6 3.Bg2 g6 4.c4 c6 5.O-O Bg7 6.d4 O-O 7.Qa4 dxc4 8.Qxc4 Nbd7 9.Qc2 Re8 10.e4 e5 11.dxe5 Nxe5 12.Nxe5 Rxe5 13.Nc3 Re8 14.h3 Be6 15.Be3 Qa5 16.f4 Qh5 17.f5 gxf5 18.exf5 Bc4 19.Rfe1 Nd5 20.Nxd5 Bxd5 21.g4 Qh4 22.Bf2 Qf6 23.Bxd5 cxd5 24.b3 d4 25.Qd3 Qb6 26.Rxe8+ Rxe8 27.Re1 Rxe1+ 28.Bxe1 Qc5 29.a4 h6 30.Kg2 Qc1 31.Bf2 Qf4 32.Qf3 Qd2 33.Qxb7 d3 34.Qc8+ Kh7 35.Qd7 Qe2 36.f6 Bxf6 37.Qxf7+ Bg7 38.Qf5+ Kg8 39.Qd5+ Kh7 40.Qf5+ Kg8 41.Qf3 Qc2 42.Qa8+ Kh7 43.Qe4+ Kg8 44.Kf3 Bc3 45.Qe8+ Kg7 46.Qe7+ Kg8 47.Qe6+ Kg7 48.Qd7+ Kg8 49.Qd8+ Kg7 50.Bd4+ Bxd4 51.Qxd4+ Kg6 52.Qe4+ Kg7 53.Qe7+ Kg6 54.Qd6+ Kg7 55.Qd7+ Kg6 56.Qf5+ Kg7 57.Qe5+ Kg6 58.Qd6+ Kg7 59.Qd7+ Kg6 60.Qe8+ Kg7 61.Qe5+ Kg6 62.Qf5+ Kg7 63.Qd7+ 1/2-1/2
2021.03.30 Titled Tuesday 30th Mar
1716325 FM Seo, Jung Min (2453) GM Obregon Rivero, J (2520) 1-0
1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.Re1 Nc7 12.Bf1 b6 13.Nc4 Ba6 14.Bf4 Bxc4 15.Bxc4 Qd7 16.a4 a6 17.Qd3 Nh5 18.Bd2 Reb8 19.f4 Bxc3 20.bxc3 b5 21.Ba2 bxa4 22.e5 Rb2 23.Bc4 Qg4 24.Rf1 dxe5 25.fxe5 Rd8 26.Rf2 a3 27.d6 Ne6 28.h3 Qg3 29.Rxa3 Qxe5 30.Rxa6 Nhf4 31.Qf1 g5 32.Bxe6 Nxe6 33.Bf4 Qxc3 34.Rxb2 Qxb2 35.Bg3 Qd4+ 36.Kh2 h5 37.Ra7 Nf4 38.Bxf4 Qxf4+ 39.Qxf4 gxf4 40.Rc7 Rxd6 41.Rxc5 f3 42.gxf3 h4 43.Rc4 Rd2+ 44.Kg1 Rd1+ 45.Kf2 Rd2+ 46.Ke3 Rh2 47.Rxh4 Kg7 48.Kf4 Ra2 49.Rg4+ Kf6 50.h4 Ra4+ 51.Kg3 Ra1 52.Rb4 Rg1+ 53.Kf2 Rh1 54.Kg2 Ra1 55.Rb5 Kg6 56.Kg3 f6 57.h5+ Kh6 58.Kf4 Rg1 59.Rf5 Kg7 60.Rb5 Kh6 61.Rb6 Kg7 62.Rb7+ Kf8 63.Kf5 Kg8 64.f4 Rh1 65.Kxf6 Ra1 66.Rb8+ Kh7 67.Rb7+ Kh6 68.Rb6 Kh7 69.f5 Re1 70.Re6 Ra1 71.Kf7 Ra7+ 72.Re7 Ra5 73.f6 Ra1 74.Kf8+ Kh8 75.f7 Kh7 76.Re8 Ra7 77.Rd8 Ra1 78.Ke7 1-0
2021.03.30 Titled Tuesday 30th Mar
1715834 GM Obregon Rivero, J (2520) WCM Hryzlova, Sofiia (2186) 1-0
1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6 5.Nxf6+ Qxf6 6.Nf3 Bd6 7.Bd3 h6 8.Qe2 Bd7 9.Bd2 Bc6 10.Be4 Bxe4 11.Qxe4 Nc6 12.O-O-O O-O-O 13.Kb1 Rhe8 14.Rhe1 Kb8 15.h3 a6 16.a3 g5 17.Bc3 Qe7 18.Qg4 Na7 19.d5 Nb5 20.Bb4 Bxb4 21.axb4 Qf6 22.dxe6 Rxd1+ 23.Rxd1 Rxe6 24.Qc4 Rc6 25.Qe4 Ka7 26.Rd5 Re6 27.Qd3 Qf4 28.c3 Qe4 29.Qxe4 Rxe4 30.Rf5 Nd6 31.Rf6 Re2 32.Nd4 Re1+ 33.Kc2 h5 34.b3 Rg1 35.g3 Rh1 36.c4 Rxh3 37.c5 Ne4 38.Rxf7 Rh2 39.Rxc7 Rxf2+ 40.Kd3 Kb8 41.Rg7 Nxg3 42.b5 h4 43.b6 Rf8 44.c6 bxc6 45.Nxc6+ Kc8 46.Rc7# 1-0
2021.03.30 Titled Tuesday 30th Mar
1715076 FM Serrer, C (2283) GM Obregon Rivero, J (2520) 0-1
1.c4 Nf6 2.Nf3 g6 3.Nc3 Bg7 4.e4 O-O 5.d4 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Bd7 10.h3 Nxd4 11.Bxd4 Bc6 12.Qc2 a5 13.Rad1 Qc7 14.Rfe1 Rac8 15.Bf1 Nd7 16.Bxg7 Kxg7 17.Nd5 Bxd5 18.exd5 Nf6 19.a4 Rfe8 20.b3 Qc5 21.Qd2 b6 22.Re3 Qc7 23.Rde1 Rcd8 24.Qe2 e5 25.dxe6 Rxe6 26.Rxe6 fxe6 27.g3 d5 28.cxd5 exd5 29.Qe7+ Qxe7 30.Rxe7+ Kf8 31.Rb7 Rd6 32.Bb5 d4 33.Bd3 Nd7 34.Kf1 Nc5 35.Rb8+ Kg7 36.Bc4 d3 37.Ke1 d2+ 38.Kd1 Ne4 39.Be2 Nc3+ 40.Kc2 Nxe2 0-1
2021.03.30 Titled Tuesday 30th Mar
1715350 GM Obregon Rivero, J (2520) GM Korobov, A (2683) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 Nc6 6.c4 a6 7.Nc3 Rb8 8.d5 Na5 9.Qd3 b5 10.cxb5 axb5 11.b4 Nc4 12.e4 Nxe4 13.Nxb5 Rxb5 14.Qxc4 Nd6 15.Qd3 Bxa1 16.Bf4 Bf6 17.Bxd6 Ba6 18.Bf4 Rb6 19.Qd2 Bxf1 20.Bxf1 Qa8 21.Bxc7 Rb7 22.d6 Rc8 23.Bg2 Rbxc7 24.dxc7 Rxc7 25.Nd4 Qc8 26.h4 Rc1+ 27.Kh2 Qc3 28.Qxc3 Rxc3 29.Nb5 Rc2 30.a4 Rb2 31.a5 Rxb4 32.a6 Rxb5 33.a7 Ra5 34.a8=Q+ Rxa8 35.Bxa8 e6 36.Kg2 Kf8 37.Kf3 Bd4 38.h5 gxh5 39.Be4 h6 40.Ke2 Bf6 41.Bb7 h4 42.gxh4 Bxh4 43.f4 f5 44.Kf3 Ke7 45.Bc8 d5 46.Ke3 Be1 47.Ke2 Bb4 48.Ke3 Bd6 49.Ba6 Kf6 50.Be2 Bxf4+ 51.Kxf4 e5+ 52.Kf3 Kg5 53.Ba6 d4 54.Bb7 h5 55.Kg3 h4+ 56.Kf3 e4+ 57.Kg2 d3 0-1
2021.03.30 Titled Tuesday 30th Mar
1716125 GM Obregon Rivero, J (2520) GM Kosteniuk, A (2474) 1/2-1/2
1.e4 c6 2.Nc3 d5 3.Nf3 dxe4 4.Nxe4 Nf6 5.Qe2 Nxe4 6.Qxe4 Nd7 7.Bc4 Nf6 8.Ne5 e6 9.Qe2 b5 10.Bb3 Qc7 11.c3 Bd6 12.d4 O-O 13.Bf4 a5 14.O-O c5 15.dxc5 Qxc5 16.Rad1 Bc7 17.Nd3 Qb6 18.Bxc7 Qxc7 19.Qe5 Qc6 20.Qc5 Bb7 21.Qxc6 Bxc6 22.Ne5 Bd5 23.Rd4 Rfc8 24.Rfd1 Rc5 25.Nd3 Rcc8 26.Ne5 Rc5 27.f3 Kf8 28.Bxd5 Rxd5 29.Rxd5 Nxd5 30.Kf2 Ke7 31.c4 bxc4 32.Nxc4 a4 33.Ne3 Nb4 34.a3 Nc6 35.Rc1 Kd7 36.Rc4 e5 37.Ke1 f6 38.Kd2 Na5 39.Rb4 Nb3+ 40.Kc3 Nc5 41.Nc4 Ra7 42.Rb6 Ne6 43.Rd6+ Ke7 44.Rc6 Nf4 45.g3 Ne2+ 46.Kb4 Nd4 47.Rb6 Nxf3 48.Nd6 Rd7 49.Nf5+ Kf7 50.Kxa4 g6 51.Nd6+ Ke7 52.Ne4 f5 53.Nc5 Rd4+ 54.Rb4 e4 55.Rxd4 Nxd4 56.Kb4 Kd6 57.Kc4 Nf3 58.b4 Nxh2 59.a4 Nf1 60.a5 Ne3+ 61.Kd4 Nc2+ 62.Kc4 Na3+ 63.Kd4 Nb5+ 64.Kc4 Na3+ 65.Kd4 Nb5+ 66.Kc4 Kc6 67.Ne6 h5 68.Nf4 g5 69.Nxh5 Nd6+ 70.Kd4 Kb5 71.Ng7 Kxb4 72.a6 f4 73.gxf4 gxf4 74.a7 Nb5+ 75.Kxe4 Nxa7 76.Kxf4 1/2-1/2
2021.03.30 Titled Tuesday 30th Mar
1714930 Albuquerque Junior, Wellington S. (2209) GM Obregon Rivero, J (2520) 1/2-1/2
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.e4 c5 6.d3 Nc6 7.Nge2 d6 8.O-O Ne8 9.Be3 Nc7 10.d4 cxd4 11.Nxd4 Ne6 12.Nde2 Nc5 13.Rc1 a5 14.b3 Bg4 15.f3 Bc8 16.Nd4 Nxd4 17.Bxd4 Bxd4+ 18.Qxd4 Be6 19.e5 Qb6 20.exd6 Qxd6 21.Qxd6 exd6 22.Rfd1 Rfd8 23.Kf2 Kf8 24.f4 Ke7 25.Rd2 Ra6 26.Re1 Kf8 27.Red1 Rb6 28.Nb5 Ke7 29.Re1 Kf8 30.Red1 Ke7 31.Re1 a4 32.b4 Na6 33.a3 Kf8 34.Bd5 Bxd5 35.Rxd5 Rc6 36.Rd4 Nc7 37.Nxc7 Rxc7 38.Red1 Rdc8 39.Rxd6 Rxc4 40.Rd8+ Rxd8 41.Rxd8+ Ke7 42.Rb8 Rc2+ 43.Kf3 Rc3+ 44.Ke4 Rxa3 45.Rxb7+ Kf6 46.Rb6+ Ke7 47.Rb7+ Ke6 48.Rb6+ Ke7 49.Rb7+ 1/2-1/2
2021.03.06 Titled Arena Mar 6th 2021
1742852 GM Obregon Rivero, J (2520) FM Yeke, S (2099) 0-1
1.Nf3 d6 2.g3 g6 3.Bg2 Bg7 4.O-O Nf6 5.d4 O-O 6.c4 Nc6 7.Nc3 a6 8.Re1 Rb8 9.Rb1 b5 10.cxb5 axb5 11.b4 Bf5 12.d5 Bxb1 13.dxc6 Bf5 14.Nd4 e5 15.Nxf5 gxf5 16.e4 fxe4 17.Nxe4 Nxe4 18.Bxe4 f5 19.Bd5+ Kh8 20.f4 e4 21.Qe2 Qf6 22.Be3 Qc3 23.Rb1 Bd4 24.Rb3 Bxe3+ 25.Qxe3 Qxe3+ 26.Rxe3 Ra8 27.Bb3 Kg7 28.Kf2 Kf6 29.h3 h5 30.Rc3 Rfd8 31.Bd5 Ra4 32.Ke3 Rxb4 33.Bb3 d5 34.Rc5 d4+ 35.Kd2 d3 36.Re5 Rxb3 37.axb3 Ra8 38.g4 hxg4 39.hxg4 Ra2+ 40.Kd1 fxg4 41.Rxe4 Kf5 42.Re7 g3 43.Rxc7 g2 44.Rg7 g1=Q+ 45.Rxg1 Ra1+ 46.Kd2 Rxg1 47.Kxd3 Rc1 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742607 IM Vazquez, Guillermo (2527) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.c4 Nf6 5.Nc3 Nc6 6.O-O g6 7.d4 cxd4 8.Nxd4 Bg7 9.Bxc6 bxc6 10.c5 O-O 11.f3 a5 12.Be3 e5 13.Nde2 d5 14.exd5 cxd5 15.Nxd5 Bb5 16.Ndc3 Ba6 17.Qxd8 Rfxd8 18.Rfd1 Rdc8 19.Ng3 Bf8 20.Nge4 Nxe4 21.Nxe4 f5 22.Nd6 Rc6 23.b3 Rb8 24.Rac1 Kg7 25.Bd2 a4 26.b4 Bxd6 27.cxd6 Rxd6 28.Bh6+ Kxh6 29.Rxd6 Bb5 30.Rc5 e4 31.fxe4 fxe4 32.Kf2 Bd3 33.a3 Rf8+ 34.Ke3 Rf1 35.g4 Rf3+ 36.Kd4 Rh3 37.Rd7 Bc2 38.g5+ Kh5 39.Rxh7+ Kg4 40.Rxh3 Kxh3 41.b5 1-0
2021.03.06 Titled Arena Mar 6th 2021
1743129 CM Okike, D (2177) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.g4 Be6 10.Nxe6 fxe6 11.h4 d5 12.g5 d4 13.gxf6 Bxf6 14.Bh6 dxc3 15.Qxd8 Rfxd8 16.b3 Nb4 17.Rh2 Rd2 18.Rxd2 cxd2+ 19.Bxd2 Nxc2+ 20.Kd1 Nxa1 21.Bc4 Rd8 22.f4 Bc3 23.Bxe6+ Kf8 24.Bd5 Bxd2 25.Kxd2 e6 26.Kc3 exd5 27.e5 d4+ 28.Kb2 d3 29.Kxa1 d2 30.Kb2 d1=Q 31.Ka3 Qd4 32.e6 Rd6 33.b4 Rb6 34.Kb3 Rxb4+ 35.Kc2 Rb2+ 36.Kc1 Qd2# 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742120 IM Kalashian, D (2398) GM Obregon Rivero, J (2520) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Bg5 c5 7.d5 e6 8.Qd2 exd5 9.exd5 Re8 10.Nf3 a6 11.a4 Bf5 12.O-O Nbd7 13.Rfe1 Qc7 14.h3 Ne4 15.Nxe4 Bxe4 16.Rad1 Bxf3 17.Bxf3 Ne5 18.Be2 f5 19.Bf1 Nf7 20.Bf4 Be5 21.b3 Bxf4 22.Qxf4 Qd7 23.Qh4 Rxe1 24.Rxe1 Re8 25.Rxe8+ Qxe8 26.Qf6 Qe5 27.Qh4 a5 28.g3 Kg7 29.Bg2 Qe1+ 30.Bf1 Qe5 31.Bg2 Qa1+ 32.Kh2 Qf6 33.Qf4 Qd4 34.Kg1 Qxf4 35.gxf4 Kf6 36.h4 h6 37.Kf1 g5 38.fxg5+ hxg5 39.hxg5+ Kxg5 40.Ke2 Kf4 41.Bh3 Ne5 42.Bf1 Nf3 43.Kd3 Nd4 44.b4 axb4 45.a5 Nb3 46.Kc2 Nxa5 47.Be2 b6 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742646 GM Obregon Rivero, J (2520) GM Morozevich, A (2659) 0-1
1.Nf3 d5 2.g3 Nc6 3.Bg2 Bg4 4.O-O Qd7 5.d4 Bh3 6.c4 Bxg2 7.Kxg2 e6 8.Nc3 O-O-O 9.cxd5 exd5 10.Bf4 f6 11.Rc1 g5 12.Be3 Nge7 13.Na4 Nf5 14.Qb3 h5 15.Nc5 Bxc5 16.Rxc5 h4 17.Rfc1 hxg3 18.hxg3 Nd6 19.Rxc6 Qh3+ 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742923 FM Chernov, Mi2 (2213) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.Bb3 Nxd4 11.Bxd4 b5 12.O-O a5 13.a4 b4 14.Nd5 Nxd5 15.exd5 Rc8 16.Rae1 Re8 17.Bxg7 Kxg7 18.Qd4+ Kg8 19.h4 Qc7 20.Kh1 Qc5 21.Qd2 Bf5 22.g4 Bd7 23.h5 Kg7 24.Re4 f5 25.Rc4 Qa7 26.Rxc8 Bxc8 27.Re1 Rf8 28.Qg5 Rf7 29.hxg6 hxg6 30.Kg2 fxg4 31.Rh1 gxf3+ 32.Kg3 Qd4 33.Qh6+ Kg8 34.Rh2 Qg1+ 0-1
2021.03.06 Titled Arena Mar 6th 2021
1743186 GM Obregon Rivero, J (2520) GM Jacobson, Brandon (2491) 1/2-1/2
1.Nf3 d5 2.g3 Nd7 3.Bg2 e5 4.O-O Ngf6 5.c4 c6 6.cxd5 cxd5 7.Nc3 Bd6 8.d3 O-O 9.Bg5 h6 10.Bxf6 Nxf6 11.Nd2 Be6 12.e4 d4 13.Nd5 Be7 14.Nxf6+ Bxf6 15.f4 Qd6 16.Nf3 exf4 17.gxf4 Qxf4 18.Qa4 Qe3+ 19.Kh1 Qxd3 20.e5 Be7 21.Qxd4 Rad8 22.Qxd3 Rxd3 23.Rac1 Rd7 24.Rfd1 Rfd8 25.Rxd7 Rxd7 26.Rc8+ Kh7 27.Rc1 g5 28.b3 Kg7 29.h3 Kg6 30.Kg1 h5 31.Kf1 g4 32.hxg4 hxg4 33.Ne1 Rd2 34.Rc2 Rxc2 35.Nxc2 b6 36.Ne3 Kg5 37.Bd5 Kf4 38.Bxe6 fxe6 39.Nc4 b5 40.Nd6 a6 41.Ne8 Kxe5 42.Nc7 b4 43.Nxa6 Kd4 44.Nc7 e5 45.Ke2 e4 46.Ne6+ Kc3 47.Ke3 g3 48.Kxe4 g2 49.Nf4 g1=N 50.Nd5+ Kb2 51.Nxe7 Ne2 52.Nc6 Nc3+ 53.Kd3 Nxa2 54.Kc4 Nc1 55.Nxb4 Nxb3 56.Nd3+ Ka3 1/2-1/2
2021.03.06 Titled Arena Mar 6th 2021
1742420 GM Aravindh, Chithambaram VR. (2641) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.O-O-O d5 10.exd5 Nxd5 11.Nxc6 bxc6 12.Bd4 Nxc3 13.Qxc3 Bh6+ 14.Be3 Bxe3+ 15.Qxe3 Qb6 16.Re1 Be6 17.h4 Rfd8 18.h5 Rd5 19.hxg6 Qxe3+ 20.Rxe3 hxg6 21.Bc4 Rd6 22.Bxe6 Rxe6 23.Rxe6 fxe6 24.Kd2 Rd8+ 25.Ke3 Rd5 26.c4 Re5+ 27.Kd3 Kg7 28.b4 a5 29.a3 axb4 30.axb4 Rf5 31.Ra1 Rf8 32.Ra6 Rb8 33.Kc3 Rc8 34.Kd4 c5+ 35.bxc5 Kf6 36.c6 1-0
2021.03.06 Titled Arena Mar 6th 2021
1741933 IM Labeckas, K (2347) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.e3 f5 5.g3 h5 6.Bg2 h4 7.Nc3 d6 8.Qd2 Nd7 9.O-O-O Nf6 10.gxh4 Rxh4 11.Nf3 Rh7 12.Kb1 c6 13.e4 Nxe4 14.Nxe4 fxe4 15.Ng5 Bh6 16.h4 d5 17.f3 Bf5 18.fxe4 dxe4 19.Qb4 Qb6 20.Qd6 Rg7 21.Nxe4 Bxe4 22.Bxe4 Rd8 23.Qa3 f5 24.Bd3 Re7 25.Rhe1 Bf8 26.c3 a6 27.Rxe7+ Bxe7 28.Re1 Rd7 29.h5 Kd8 30.Qa4 gxh5 31.Bxf5 Rd5 32.Be6 Ra5 33.Qc2 Qb5 34.Bb3 Qf5 35.a3 Qxc2+ 36.Bxc2 Rg5 37.Re6 h4 38.Rh6 Rg3 39.Bf5 Rf3 40.Be6 Re3 41.Rh8+ Kc7 42.Bf5 Kd6 43.Rh5 b5 44.Bc8 a5 45.Bb7 Kc7 46.Ba6 Kb6 47.Bc8 a4 48.Bd7 Re1+ 49.Kc2 Re2+ 50.Kb1 Re1+ 51.Ka2 Bf6 52.Rh6 Rf1 53.Bg4 Rf2 54.Be6 Kc7 55.d5 Kd6 56.Rh5 c5 57.Kb1 b4 58.axb4 cxb4 59.Rh6 Rxb2+ 60.Kxb2 Bxc3+ 61.Kc2 Be5 62.Rxh4 b3+ 63.Kb1 a3 64.Ra4 a2+ 65.Rxa2 bxa2+ 66.Kxa2 Kc5 67.Kb3 Kd6 68.Kc4 Bf4 69.Bf5 Be5 70.Be4 Bf6 71.Kd3 Be5 72.Bf3 Bf6 73.Ke4 Be5 74.Kf5 Bf6 75.Be4 Be5 76.Kg6 Bh2 77.Bf3 Bg3 78.Kf5 1-0
2021.03.06 Titled Arena Mar 6th 2021
1742727 GM Obregon Rivero, J (2520) CM Orozbaev, Eldiar (1973) 0-1
1.Nf3 d5 2.g3 c6 3.Bg2 h5 4.O-O h4 5.Nxh4 e5 6.c4 e4 7.d3 g5 8.cxd5 gxh4 9.dxe4 hxg3 10.hxg3 cxd5 11.exd5 Bh3 12.Bxh3 Rxh3 13.Kg2 Rh5 14.Nc3 Qd7 15.Rh1 Rxh1 16.Qxh1 Nf6 17.e4 Na6 18.Bg5 Ng4 19.Qh4 Ne5 20.f4 Nc4 21.e5 Ne3+ 22.Kf3 Nxd5 23.Rd1 Nac7 24.Ne4 Qc6 25.Qh8 Qc2 26.Rd2 Qb1 27.Nf6+ Nxf6 28.Qxf6 Qh1+ 29.Ke2 Qg2+ 30.Ke1 Qxg3+ 31.Ke2 Qg2+ 32.Ke1 Qg1+ 33.Ke2 Ne6 34.Rd7 Qg2+ 35.Ke1 Qe4+ 36.Kf2 Kxd7 37.Qxf7+ Kc6 38.Qxe6+ Kb5 39.Qd7+ Qc6 40.Qd3+ Kb6 41.Qb3+ Qb5 42.Qe6+ Qc6 43.Qb3+ Kc7 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742228 GM Obregon Rivero, J (2520) FM Lazavik, Denis (2442) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.c3 d6 6.O-O h6 7.a4 a6 8.Nbd2 O-O 9.b4 Ba7 10.h3 Be6 11.Re1 Re8 12.Bxe6 Rxe6 13.Qb3 Qd7 14.Nc4 Ne7 15.Be3 Bxe3 16.Rxe3 Ng6 17.d4 exd4 18.Nxd4 Rxe4 19.Rxe4 Nxe4 20.Re1 Re8 21.b5 Nc5 22.Rxe8+ Qxe8 23.Qd1 Qe4 24.bxa6 bxa6 25.a5 Nf4 26.Qf3 Qxf3 27.Nxf3 Nd5 28.Nd4 Nxc3 29.Nc6 Kf8 30.Kf1 Ke8 31.Ke1 Kd7 32.Nb8+ Kc8 33.Nc6 Nd5 34.Kd2 Kd7 35.Nb8+ Ke6 36.Nc6 Ne7 37.Nd8+ Kd7 38.Nxf7 Ke6 39.Nd8+ Kd5 40.Ne3+ Ke4 41.f3+ Kf4 42.Nf1 Kf5 43.Ne3+ Ke5 44.Nc4+ Kf4 45.Ke2 Kg3 46.Kf1 Nf5 47.Nf7 d5 48.Nce5 Ne3+ 49.Ke2 Nxg2 50.Nc6 Nf4+ 51.Ke3 Nce6 52.Nb4 d4+ 53.Kd2 Nc5 54.Ne5 Kxh3 55.Nec6 d3 56.Nd4 Kg3 57.Ke3 Ng2+ 58.Kd2 h5 59.Nf5+ Kf4 60.Nxg7 h4 61.Nd5+ Kg5 0-1
2021.03.06 Titled Arena Mar 6th 2021
1742999 GM Obregon Rivero, J (2520) FM Alumert, Orkun Efe (2301) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 c6 7.Nc3 Qa5 8.e4 Qh5 9.Ng5 Qxd1 10.Rxd1 e5 11.d5 Rd8 12.h3 Na6 13.Be3 cxd5 14.cxd5 Bh6 15.Rac1 Bd7 16.a3 b6 17.b4 Nc7 18.Rc2 Nb5 19.Nxf7 Kxf7 20.Bxh6 Nxa3 21.Ra2 Nc4 22.Bf1 b5 23.Rda1 a5 24.bxa5 Ra6 25.Bxc4 bxc4 26.Be3 Rda8 27.Bb6 Bxh3 28.Ra4 Nd7 29.Be3 Nf8 30.Nb5 Bd7 31.Nc7 Bxa4 32.Nxa6 Rxa6 33.Rxa4 Nd7 34.Bd2 Nb6 35.Rb4 Nd7 36.Rxc4 Nc5 37.Bb4 Nd3 38.Bd2 Nb2 39.Rc6 Rxc6 40.dxc6 Nc4 41.c7 1-0
2021.03.06 Titled Arena Mar 6th 2021
1742773 GM Teterev, V (2444) GM Obregon Rivero, J (2520) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d3 O-O 6.e4 Nc6 7.c3 d6 8.Re1 Bg4 9.h3 Bxf3 10.Qxf3 Rb8 11.a4 Nd7 12.Be3 a6 13.Qe2 b5 14.Nd2 b4 15.Rec1 bxc3 16.bxc3 Qc7 17.Nc4 Na5 18.Nxa5 Qxa5 19.d4 Rb3 20.Qc4 Rfb8 21.Bf1 R8b6 22.e5 e6 23.exd6 cxd4 24.Bxd4 Bxd4 25.Qxd4 Qc5 26.Qxc5 Nxc5 27.Rd1 Nd7 28.c4 Rc6 29.Rac1 Rc5 30.Rb1 Rxb1 31.Rxb1 Rc6 32.Rd1 Kg7 33.f4 Kf6 34.Kf2 e5 35.Ke3 exf4+ 36.gxf4 Ke6 37.Bg2 Rxd6 38.Bd5+ Ke7 39.Kd4 Rf6 40.Ke4 Nc5+ 41.Kf3 Nxa4 42.Ra1 Nc5 43.Re1+ Kd8 44.Rb1 Nd3 45.Ke4 Nxf4 46.Ke5 Rf5+ 47.Kd6 Rf6+ 48.Ke5 Rf5+ 49.Kd6 Nd3 50.Rb8# 1-0
2021.03.06 Titled Arena Mar 6th 2021
1742263 WGM Vaishali, R (2393) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.Bf4 g6 3.Nc3 d6 4.e4 c6 5.Qd2 b5 6.a3 Nbd7 7.Bh6 Bxh6 8.Qxh6 Qb6 9.O-O-O a5 10.Nf3 b4 11.Nb1 Nxe4 12.Re1 Nxf2 13.Qh4 e6 14.Qxf2 bxa3 15.Nxa3 Rb8 16.Nc4 Qb4 17.c3 Qb3 18.Nxd6+ Ke7 19.Ne4 Qa2 20.Bd3 a4 21.Nfg5 Rf8 22.Bb1 Qa1 23.Rhf1 a3 24.Qxf7+ Rxf7 25.Rxf7+ Kd8 26.Nxe6+ Ke8 27.Nd6# 1-0
2021.03.06 Titled Arena Mar 6th 2021
1742063 GM Obregon Rivero, J (2520) GM Grigorov, G (2507) 0-1
1.Nf3 d5 2.g3 Bg4 3.Bg2 c6 4.h3 Bh5 5.O-O e6 6.d4 Bd6 7.c4 Nd7 8.Nc3 Ne7 9.Qb3 Rb8 10.c5 Bc7 11.Nd2 O-O 12.f4 Nf5 13.g4 Ne3 14.gxh5 Nxf1 15.Nxf1 Qh4 16.e3 Qxh5 17.Qd1 Qg6 18.Qg4 Qd3 19.Qe2 Qg6 20.b4 f6 21.Qg4 Qf7 22.a4 e5 23.Bd2 exf4 24.exf4 f5 25.Qe2 Rbe8 26.Qd3 Qg6 27.Nh2 Nf6 28.Nf3 Ne4 29.Ne5 Qh6 30.Nxe4 fxe4 31.Qe3 Qe6 32.b5 Kh8 33.Rb1 Rb8 34.a5 Kg8 35.b6 axb6 36.axb6 Bxe5 37.fxe5 Ra8 38.Rf1 Rxf1+ 39.Bxf1 Ra2 40.Qg5 h6 41.Qf4 Qg6+ 42.Bg2 Kh7 43.Kh2 Rc2 44.h4 Qh5 45.Kh3 Rb2 46.Be3 Rb3 47.Kh2 Qg6 48.Bf2 Rb2 49.Bg3 Re2 50.Kh3 e3 51.Bf3 Rd2 52.h5 Qb1 53.e6 Qf1+ 54.Kg4 Qd3 55.Qf5+ Qxf5+ 56.Kxf5 e2 57.e7 Rd3 58.e8=Q Rxf3+ 59.Kg4 Rf1 60.Qxe2 Rf6 61.Qd3+ Kg8 62.Be5 Kf7 63.Qg6+ Ke6 64.Qxg7 Rg6+ 65.Qxg6+ Kd7 66.Qxh6 Kc8 0-1
2021.03.06 Titled Arena Mar 6th 2021
1743087 FM Perera Alfonso, R (2354) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Ne5 11.Bb3 Rc8 12.h4 Nc4 13.Bxc4 Rxc4 14.h5 Nxh5 15.g4 Nf6 16.Kb1 Qa5 17.Nb3 Qe5 18.Bh6 Rxc3 19.bxc3 Bxh6 20.Rxh6 Rc8 21.Nd4 Bxg4 22.Rdh1 Be6 23.Re1 Qc5 24.Nxe6 fxe6 25.Qd4 Qxc3 26.Qxc3 Rxc3 27.f4 Kg7 28.Rh2 e5 29.fxe5 dxe5 30.Rg2 Rc4 31.Rg5 Rc5 32.Kb2 h6 33.Rg2 Rc4 34.Rge2 g5 35.Kb3 Rc6 36.c4 g4 37.Rd2 h5 38.Rd8 g3 39.Rb8 Rb6+ 40.Kc3 h4 41.Rd8 Kg6 42.Rd2 Kg5 43.Rf1 Kg4 44.Kd3 h3 45.Ke3 g2 46.Rg1 Kg3 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1798912 GM Obregon Rivero, J (2520) FM Jaeggi, D (2325) 1-0
1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 e6 6.Bc4 Nc6 7.Qe4 f5 8.Qe2 Nb6 9.Bb3 Be7 10.Nf3 O-O 11.O-O Na5 12.Bc2 Qc7 13.Rd1 Qc4 14.Bd3 Qg4 15.b4 Nc6 16.a4 Nd5 17.Na3 Nxc3 18.Qd2 Nxd1 19.Qxd1 Nxb4 20.Nb5 a6 21.Nd6 Nd5 22.h3 Qg6 23.Bc4 Bxd6 24.exd6 Nf6 25.a5 Ne4 26.Ba3 b5 27.axb6 Bb7 28.Bd3 Rfc8 29.Ne5 Qg5 30.f3 Nc3 31.Qe1 Qf4 32.Nxd7 Qd4+ 33.Kh1 Qxd3 34.Qxe6+ Kh8 35.Ne5 Bd5 36.Qxc8+ Rxc8 37.Nxd3 Nb5 38.Bb4 Bb7 39.Rc1 Rxc1+ 40.Nxc1 a5 41.Bc5 a4 42.Nd3 a3 43.Bxa3 Bc6 44.Bb4 Nd4 45.Ne5 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1798416 FM Aliakbarov, A (2219) GM Obregon Rivero, J (2520) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.O-O cxd4 8.Nxd4 Nc6 9.Be3 Bd7 10.f3 Nxd4 11.Bxd4 Bc6 12.Qd2 Nd7 13.Be3 a5 14.b3 Nc5 15.Rac1 Qb6 16.Rc2 Rfc8 17.Rb1 Qb4 18.Qc1 Qb6 19.a3 Qd8 20.b4 axb4 21.axb4 Na4 22.b5 Nxc3 23.Rxc3 Bd7 24.Ra3 Be6 25.Rxa8 Rxa8 26.Qd2 b6 27.Bd4 Bxd4+ 28.Qxd4 Qc7 29.f4 Ra2 30.Bf1 f6 31.f5 Bf7 32.fxg6 hxg6 33.Rb3 Qc5 34.Qxc5 dxc5 35.Rd3 Rc2 36.Rd8+ Kg7 37.Rd7 Kf8 38.Rb7 Bxc4 39.Bxc4 Rxc4 40.Rxb6 Rxe4 41.Rb8+ Kf7 42.b6 Rb4 43.b7 c4 44.Rc8 Rxb7 45.Rxc4 Rb2 46.h4 f5 47.Kh2 Kf6 48.Kh3 e5 49.Rc6+ Kg7 50.g3 Rb3 51.Re6 e4 52.Kh2 Kf7 53.Re5 Kf6 54.Re8 Rb2+ 55.Kh3 Rb7 56.Ra8 Re7 57.Kg2 e3 58.Kf1 e2+ 59.Ke1 Re3 60.Ra4 Rxg3 61.Kxe2 Rg4 62.Rxg4 fxg4 63.Kf2 Ke5 64.Kg3 Kf5 65.Kg2 Kf4 66.Kf2 g3+ 67.Kg2 Kg4 68.Kg1 Kxh4 69.Kg2 Kg4 70.Kg1 Kf3 71.Kf1 g5 72.Kg1 g2 73.Kh2 Kf2 74.Kh3 g4+ 75.Kh2 g1=Q# 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1798970 GM Corrales Jimenez, F (2532) GM Obregon Rivero, J (2520) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 h6 10.Bxf6 Qxf6 11.Nxc6 Bxc6 12.Bc4 Qd8 13.Bb3 Qc7 14.f5 Bd7 15.Kb1 O-O-O 16.Rhf1 Be7 17.g4 Bf6 18.h4 Bxh4 19.fxe6 fxe6 20.Rf7 Qc6 21.Rxg7 Bf6 22.Rg6 Bxc3 23.bxc3 Rhg8 24.Rxe6 Bxe6 25.Bxe6+ Kc7 26.Bxg8 Rxg8 27.Qxh6 Rxg4 28.Qh7+ Kb8 29.Qe7 Rxe4 30.Qxd6+ Qxd6 31.Rxd6 Kc7 32.Rd4 Re1+ 33.Kb2 Re2 34.a4 Re5 35.Kb3 Rh5 36.Rg4 Rf5 37.c4 Kb8 38.Rg6 Ka7 39.c3 Rf1 40.c5 Rb1+ 41.Ka3 Ra1+ 42.Kb3 Rb1+ 43.Ka2 Rc1 44.Kb2 Rf1 45.c6 bxc6 46.Rxc6 Kb7 47.Rh6 Rf2+ 48.Kb3 Rf1 49.Rh7+ Kb6 50.Rh6+ Kb7 51.Rh2 Kb6 52.Kb4 Rb1+ 53.Kc4 Ra1 54.Rh6+ Kb7 55.Kc5 Rxa4 56.Rh7+ Kb8 57.c4 Ra1 58.Kc6 Rg1 59.Rh6 a5 60.c5 a4 61.Rh4 Rg6+ 62.Kb5 a3 63.Ra4 Rg2 64.Rxa3 Kb7 65.Rb3 Rg4 66.Ra3 Rg1 67.c6+ Kc7 68.Ra7+ Kb8 69.Ra4 Rb1+ 70.Kc5 Rc1+ 71.Kd5 Rd1+ 72.Rd4 Rxd4+ 73.Kxd4 Kc7 74.Kd5 Kc8 75.Kc5 Kc7 76.Kb5 Kc8 77.Kb6 Kb8 78.Kc5 Kc7 79.Kd5 Kc8 80.Ke6 Kc7 81.Kd5 1/2-1/2
2021.01.02 Titled Arena Jan 2nd 2021
1798489 GM Obregon Rivero, J (2520) GM Nesterov, Arseniy (2482) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 Bf5 4.O-O e6 5.d4 Be7 6.c4 c6 7.Nc3 O-O 8.Qb3 Qb6 9.c5 Qa6 10.Re1 b6 11.cxb6 axb6 12.Nh4 Bg6 13.Nxg6 hxg6 14.e4 dxe4 15.Nxe4 Nd5 16.Nc3 Nd7 17.Nxd5 cxd5 18.Bxd5 exd5 19.Rxe7 Rfe8 20.Rxe8+ Rxe8 21.Be3 Nf6 22.Rc1 Ng4 23.Qxd5 Nxe3 24.fxe3 Qe2 25.Rf1 Qxe3+ 26.Kg2 Re7 27.Rf2 Kh7 28.Rxf7 Rxf7 29.Qxf7 Qxd4 30.Qf2 Qd5+ 31.Kh3 Qe6+ 32.g4 Qxa2 33.Qxb6 Qd5 34.Qe3 Qd1 35.b3 Qb1 36.Kg3 Kg8 37.h4 Kh7 38.h5 gxh5 39.gxh5 Qd1 40.Qf3 Qe1+ 41.Kf4 Qb4+ 42.Qe4+ Qxe4+ 43.Kxe4 Kh6 44.b4 Kxh5 45.b5 g5 46.b6 g4 47.b7 g3 48.b8=Q g2 49.Qh8+ Kg4 50.Qg7+ Kh3 51.Kf3 Kh4 52.Qg4# 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799079 GM Obregon Rivero, J (2520) FM Dondukov, S (2335) 1-0
1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.O-O Nd7 5.h3 Bxf3 6.Bxf3 e6 7.Bg2 h5 8.d3 h4 9.g4 Bd6 10.e3 Ne7 11.c4 g5 12.Nc3 Ng6 13.cxd5 exd5 14.d4 O-O 15.Re1 f5 16.gxf5 Rxf5 17.Qg4 Qf6 18.e4 dxe4 19.Nxe4 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799080 GM Abdusattorov, Nodirbek (2627) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 g6 6.c4 Bg7 7.Nc3 O-O 8.Be3 Nc6 9.Qd2 Nxd4 10.Bxd4 Bd7 11.Be2 Bc6 12.O-O Nd7 13.b4 Bxd4+ 14.Qxd4 Qb6 15.Qxb6 Nxb6 16.Rfc1 Rfc8 17.Kf2 Bd7 18.Nd1 Be6 19.Ne3 Rc7 20.Rc3 a5 21.Rb1 axb4 22.Rxb4 Nd7 23.Rc2 Nc5 24.Nd5 Bxd5 25.cxd5 Ra3 26.Rcb2 f6 27.Bc4 Kg7 28.Ke2 Rc8 29.Bb3 Rca8 30.h4 R8a7 31.Rc2 f5 32.exf5 gxf5 33.g4 Kf6 34.g5+ Ke5 35.f4# 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799081 GM Obregon Rivero, J (2520) GM Matinian, N (2470) 1/2-1/2
1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O Nc6 7.h3 e5 8.Be3 exd4 9.Nxd4 Re8 10.Nxc6 bxc6 11.Bf3 Rb8 12.Rb1 c5 13.Qd2 Bb7 14.Bh6 Nxe4 15.Bxe4 Bxe4 16.Bxg7 Kxg7 17.Rfe1 Bc6 18.b3 Rxe1+ 19.Rxe1 Qf6 20.Ne4 Bxe4 21.Rxe4 h5 22.Qe3 a5 23.Kh2 Rb4 24.Re7 Rf4 25.f3 c6 26.Ra7 h4 27.Rxa5 Rf5 28.Ra4 Re5 29.Re4 Rd5 30.a4 g5 31.a5 Qa1 32.Ra4 Qf1 33.a6 f6 34.Qe7+ Kg6 35.Qe4+ Kg7 36.Qxd5 cxd5 37.a7 Qe1 38.Rg4 Qa1 39.Ra4 Qe5+ 40.f4 gxf4 41.Kg1 Qe1+ 42.Kh2 Qg3+ 43.Kg1 Qe3+ 44.Kh2 Qg3+ 45.Kg1 Qe1+ 46.Kh2 f3 47.Rg4+ Kf7 48.a8=Q Qe5+ 49.Kh1 Qe1+ 50.Kh2 Qe5+ 51.Kh1 Qe1+ 52.Kh2 1/2-1/2
2021.01.02 Titled Arena Jan 2nd 2021
1799082 IM Drozdowski, K (2448) GM Obregon Rivero, J (2520) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Be3 c5 7.d5 e6 8.Qd2 exd5 9.exd5 Re8 10.h3 Bf5 11.Nf3 Ne4 12.Nxe4 Bxe4 13.O-O Bxf3 14.Bxf3 Nd7 15.Be2 Be5 16.Rfe1 Qf6 17.Rab1 Bd4 18.Bxd4 cxd4 19.Bf1 Nc5 20.Rbd1 d3 21.Bxd3 Nxd3 22.Qxd3 Qxb2 23.Qb3 Qxb3 24.axb3 Kf8 25.Kf1 a5 26.Rxe8+ Kxe8 27.Ra1 Kd7 28.Ke2 Kc7 29.Kd3 b5 30.Re1 bxc4+ 31.Kxc4 Kd7 32.Kb5 Rb8+ 33.Ka4 Rb4+ 34.Ka3 Rb5 35.Rd1 f5 36.Rd4 g5 37.Ka4 Rc5 38.h4 h6 39.hxg5 hxg5 40.g3 Ke7 41.Rd3 Kf6 42.f4 gxf4 43.gxf4 Kg6 44.Rg3+ Kh6 45.Rh3+ Kg6 46.Rg3+ Kf7 47.Rd3 Kf6 48.Rd4 Kg6 49.Rd3 Kh5 50.Rg3 Rxd5 51.Rg8 Kh4 52.Ra8 Kg4 53.Rxa5 Rd1 54.b4 Kxf4 55.b5 Ra1+ 56.Kb4 Rb1+ 57.Kc4 Ke4 58.Ra6 d5+ 59.Kc5 Rc1+ 60.Kd6 d4 61.b6 Rb1 62.Kc7 d3 63.b7 d2 64.Rb6 Rxb6 65.Kxb6 d1=Q 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1799083 GM Obregon Rivero, J (2520) GM Matinian, N (2470) 1/2-1/2
1.Nf3 d6 2.g3 Nf6 3.Bg2 g6 4.O-O Bg7 5.d4 O-O 6.c4 Nc6 7.Nc3 Bf5 8.b3 Ne4 9.Bb2 Nxc3 10.Bxc3 Be4 11.h3 e5 12.dxe5 Nxe5 13.Nxe5 Bxg2 14.Kxg2 Bxe5 15.Bxe5 dxe5 16.Qc2 Qe7 17.Rfd1 Rfd8 18.Qe4 c6 19.Rac1 f6 20.h4 Kf7 21.Qe3 f5 22.Rxd8 Rxd8 23.Qxa7 e4 24.Qe3 h5 25.Rc2 Qb4 26.Qh6 Rd1 27.Qh7+ Kf6 28.Qh8+ Kf7 29.Qh7+ Kf6 30.Rc3 b6 31.Qh8+ Kf7 32.Qh7+ Kf6 33.g4 fxg4 34.Qh8+ Kf7 35.Qh7+ Kf6 36.a3 Qd6 37.Qh8+ Kf7 38.c5 Qd2 39.Qh7+ Kf8 40.Qh8+ Kf7 41.cxb6 Qe1 42.Qh7+ Kf8 43.Qh6+ Kf7 44.Qf4+ Kg8 45.Qb8+ Kh7 46.Qc7+ Kh6 47.Qf4+ Kh7 48.Qf7+ Kh8 49.Qf8+ Kh7 50.Qf7+ Kh8 51.Qf6+ Kh7 52.Qe7+ Kh8 53.Qe5+ Kh7 54.Qe7+ Kh8 55.Qf6+ Kh7 56.Qf7+ 1/2-1/2
2021.01.02 Titled Arena Jan 2nd 2021
1799084 FM Al Tarbosh, W (2189) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.h3 Bg7 7.Be2 O-O 8.O-O Nc6 9.Be3 Bd7 10.Qd2 Nxd4 11.Bxd4 Bc6 12.Bd3 a5 13.Rad1 Nd7 14.Bxg7 Kxg7 15.f4 Qb6+ 16.Kh2 Qxb2 17.f5 Qb4 18.a3 Qxa3 19.Nd5 Bxd5 20.exd5 Qc5 21.Rde1 Ne5 22.Qg5 f6 23.Qf4 Qxd5 24.h4 Rac8 25.h5 g5 26.h6+ Kxh6 27.Qg3 Kg7 28.Qh3 b5 29.Qh5 b4 30.Rh1 Rf7 31.Kg3 Kg8 32.Be4 Rc3+ 33.Kh2 Qd2 34.Re2 Qf4+ 35.g3 Qxg3# 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1799085 IM Quintiliano Pinto, R (2469) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.Bg5 c5 6.d5 h6 7.Bh4 d6 8.e3 g5 9.Bg3 Nh5 10.Bd3 a6 11.a4 Nxg3 12.hxg3 e6 13.Qc2 Re8 14.dxe6 Rxe6 15.Bh7+ Kf8 16.Bf5 Nc6 17.Bxe6 Bxe6 18.Qh7 Bxc4 19.Rxh6 Nb4 20.O-O-O d5 21.Rh5 f6 22.Qf5 Qc8 23.Rxg5 Nd3+ 24.Rxd3 Bxd3 25.Qxc8+ Rxc8 26.Rxd5 Bf1 27.Nh4 b5 28.axb5 axb5 29.Ne4 c4 30.Rd7 b4 31.Nd6 Ra8 32.Ndf5 Bd3 33.Rxg7 Ra1+ 34.Kd2 Rb1 35.Ng6+ Ke8 36.Nd6+ Kd8 37.e4 Rxb2+ 38.Ke3 Re2+ 39.Kd4 b3 40.Nf4 b2 41.Ne6# 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799086 GM Georgiev, Ki (2589) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.Nc3 d5 3.Bf4 a6 4.e3 g6 5.Nf3 Bg7 6.h3 O-O 7.a3 c5 8.dxc5 Nbd7 9.b4 Nh5 10.Nxd5 Nxf4 11.Nxf4 Bxa1 12.Qxa1 a5 13.Qb2 axb4 14.axb4 Nf6 15.Bc4 Qc7 16.Ne5 b6 17.c6 b5 18.Bb3 Qd6 19.O-O Kg7 20.Qd4 Qxd4 21.exd4 Rd8 22.Rd1 e6 23.f3 Nd5 24.Bxd5 exd5 25.Re1 Ra7 26.c3 f6 27.Ned3 Rd6 28.Nc5 Rxc6 29.Nxd5 Kf7 30.Kf2 Be6 31.Nf4 Bc4 32.h4 h6 33.g4 g5 34.hxg5 hxg5 35.Ng2 Ra2+ 36.Kg3 Rc7 37.f4 Re7 38.Rxe7+ Kxe7 39.Ne3 Ra3 40.Ne4 Bd3 41.Kf3 Bxe4+ 42.Kxe4 Ke6 43.f5+ Kf7 44.Nd5 Ra1 45.Nc7 Rg1 46.Kf3 Rf1+ 47.Kg3 Rc1 48.Nxb5 Ke7 49.Kf3 Kd7 50.d5 Rd1 51.Nd4 Kd6 52.Ke4 Re1+ 53.Kf3 Kxd5 54.Nb5 Kc4 55.Nc7 Rf1+ 56.Ke4 Re1+ 57.Kf3 Rf1+ 58.Kg2 Rf4 59.Kg3 Kxc3 60.Nd5+ 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799087 GM Sargsyan, Shant (2596) GM Obregon Rivero, J (2520) 0-1
1.Nf3 Nf6 2.d4 g6 3.Bg5 Bg7 4.Bxf6 Bxf6 5.h4 h5 6.e3 c5 7.c3 cxd4 8.cxd4 d6 9.Nc3 O-O 10.Bd3 Bg7 11.Ng5 Nc6 12.a3 e5 13.dxe5 Nxe5 14.Be2 Qb6 15.Rb1 Bf5 16.Nd5 Qa5+ 17.b4 Qxa3 18.Ne7+ Kh8 19.Nxf5 Qc3+ 20.Kf1 gxf5 21.Bb5 Ng4 22.Be2 Rac8 23.b5 Qc2 24.g3 Qxd1+ 25.Bxd1 Bh6 26.Nf3 Bg7 27.Ng5 Bf6 28.Nh3 Be5 29.Kg2 Rc5 30.b6 a6 31.Bf3 Rb8 32.Rhc1 Kg7 33.Ng5 a5 34.Be2 a4 35.Nf3 Bc3 36.Rb5 Rxb5 37.Bxb5 Bb2 38.Rc2 a3 39.Bc4 Rc8 40.Ne1 a2 41.Bxa2 Rxc2 42.Nxc2 Ne5 43.Bd5 Nd7 44.Bxb7 Nxb6 45.Bf3 Nd7 46.Nb4 Nf6 47.Nd5 Nxd5 48.Bxd5 Kg6 49.Bf3 f6 50.Be2 Ba3 51.Kf3 Bc5 52.Bb5 Bb6 53.Be8+ Kh6 54.Bxh5 Kxh5 55.Kf4 Kg6 56.Kf3 d5 57.Kf4 Bc7+ 58.Kf3 Be5 59.Ke2 Kh5 60.Kf3 Bd6 61.Ke2 Kg4 62.Kf1 Kf3 63.h5 Bf8 64.Ke1 Kg4 65.Ke2 Kxh5 66.Kf3 Bd6 67.Ke2 Kg4 68.e4 dxe4 69.Ke3 Bc5+ 70.Ke2 Bd4 71.Kf1 Kf3 72.g4 fxg4 73.Kg1 Bxf2+ 74.Kh1 e3 75.Kh2 e2 76.Kh1 e1=Q+ 77.Kh2 Qg1# 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1799088 GM Matinian, N (2470) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nc3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Qd2 g6 6.b3 Bg7 7.Bb2 Nf6 8.O-O-O O-O 9.f3 Qa5 10.Nge2 Be6 11.Nf4 Rfc8 12.Nxe6 fxe6 13.Bc4 Nd8 14.Kb1 Rxc4 15.bxc4 Qb6 16.Qd4 Qa6 17.e5 Nc6 18.exf6 Nxd4 19.fxg7 Nc6 20.Rhe1 Ne5 21.Rxe5 dxe5 22.Ne4 Qxc4 23.Bxe5 Rc8 24.c3 Qb5+ 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1799089 GM Shipov, S (2541) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Nf3 d6 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 b6 13.Nb5 Nxb5 14.axb5 Nd7 15.Nc4 Ne5 16.Na3 Rb8 17.Bf4 Rb7 18.Qd2 h5 19.b3 f6 20.Nc4 g5 21.Bg3 h4 22.Bf2 Nxc4 23.bxc4 Ree7 24.Ra4 Rf7 25.Rfa1 Qe8 26.Bd3 Rbe7 27.R1a3 Bh6 28.Qa2 Qd7 29.h3 Kg7 30.Kh1 Qc7 31.Bg1 Qb8 32.Bh2 Qc7 33.Qb2 Qd8 34.Ra1 Kg8 35.Rf1 Bg7 36.Qd2 Bh6 37.Ra2 Kg7 38.Qc3 Kg8 39.Raf2 Bg7 40.Qd2 Re5 41.f4 gxf4 42.Bxf4 Rfe7 43.Bxe5 Rxe5 44.Qd1 Qe8 45.Rf3 Qg6 46.Qd2 Qg5 47.Qf2 Bd7 48.Rxf6 Bxf6 49.Qxf6 Qxf6 50.Rxf6 Rg5 51.Kh2 Rg3 52.Rf3 Rxf3 53.gxf3 Kg7 54.f4 Kf6 55.Be2 Bc8 56.Bg4 Bb7 57.Kg2 a6 58.bxa6 Bxa6 59.Be2 Bc8 60.Bf1 Bd7 61.Kf3 Bc8 62.Ke3 Bd7 63.Kd2 Bc8 64.Kc3 Bd7 65.Kb2 Bc8 66.Kc3 Bd7 67.Kd2 Bc8 68.Ke3 Bd7 69.Kf2 Bc8 70.Kf3 Bd7 71.Ke3 Bc8 72.Kf2 Bd7 73.Kg2 Bc8 74.Be2 Bd7 75.Bg4 Be8 76.Kf3 Bd7 77.Bxd7 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799090 GM Obregon Rivero, J (2520) GM Shipov, S (2541) 1/2-1/2
1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.O-O Nd7 5.h3 Bh5 6.d4 e6 7.c4 Bd6 8.Nc3 Ngf6 9.Qb3 Qb8 10.c5 Bc7 11.Nd2 b6 12.cxb6 axb6 13.e4 O-O 14.e5 Ne8 15.g4 Bg6 16.f4 Bd3 17.Rf3 Ba6 18.f5 Nxe5 19.dxe5 Bxe5 20.fxe6 fxe6 21.Rxf8+ Kxf8 22.Nf3 Bd6 23.Be3 c5 24.Ng5 Bc4 25.Qc2 Nf6 26.Nxe6+ Kg8 27.g5 d4 28.gxf6 Bxe6 29.Bxa8 Qxa8 30.Qg2 Qxg2+ 31.Kxg2 dxe3 32.fxg7 Be5 33.Re1 Bd4 34.Nd1 Bxa2 35.Nxe3 Bxg7 36.Re2 Kf7 37.Nf5 Bf6 38.Nd6+ Kg6 39.Ne4 Bd5 40.Kf3 Bd4 41.Kf4 b5 42.Nc3 Bc4 43.Rg2+ Kf7 44.Ne4 b4 45.Nd6+ Ke6 46.Nxc4 Kd5 47.Na5 c4 48.b3 Be5+ 49.Kf5 c3 50.Nc4 Bd4 51.Rc2 Bc5 52.Kf4 Kd4 53.Rg2 Kd3 54.Ne5+ Kd4 55.Nf3+ Kd3 56.Ne1+ Kd4 57.Re2 Bd6+ 58.Kf3 Bc5 59.Nc2+ Kd3 60.Rg2 Bd6 61.Ne1+ Kd4 62.Rc2 Bc5 63.Ke2 Bd6 64.Nf3+ Ke4 65.Rc1 h6 66.Rd1 Bc5 67.Rd8 Kf4 68.Rc8 Be3 69.Rc4+ Kg3 70.Rxb4 c2 71.Rc4 c1=Q 72.Rxc1 Bxc1 73.Nd4 Kxh3 74.Nf5 Kg4 75.Nxh6+ Bxh6 76.b4 Kf5 77.b5 Ke6 78.Kd3 Kd7 79.b6 Kc8 80.b7+ Kxb7 1/2-1/2
2021.01.02 Titled Arena Jan 2nd 2021
1799091 GM Obregon Rivero, J (2520) GM Yilmaz, M (2630) 1-0
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.c4 d6 6.Nc3 e6 7.Rb1 Nge7 8.a3 a5 9.d3 O-O 10.Qc2 b6 11.b3 Bb7 12.Bb2 Qd7 13.Na4 Nc8 14.Bxg7 Kxg7 15.Rfd1 e5 16.e3 f5 17.d4 cxd4 18.exd4 e4 19.Ng5 h6 20.Nh3 g5 21.Qc3 d5 22.Kh1 N6e7 23.Ng1 Bc6 24.Nb2 Nd6 25.Ne2 Rac8 26.a4 Kh7 27.Qd2 Ng6 28.Nc3 f4 29.cxd5 f3 30.dxc6 fxg2+ 31.Kg1 Rxc6 32.d5 Rc7 33.Nc4 Nxc4 34.bxc4 Qh3 35.Qd4 Re7 36.d6 Ne5 37.Qxe4+ Kg7 38.dxe7 Nf3+ 39.Qxf3 Rxf3 40.e8=Q Rxf2 41.Kxf2 Qxh2 42.Rd7+ Kf6 43.Qf7+ Ke5 44.Rd5# 1-0
2021.01.02 Titled Arena Jan 2nd 2021
1799092 GM Mammadov, Z (2417) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.c3 d6 3.d4 cxd4 4.cxd4 Nf6 5.Nc3 g6 6.Nf3 Bg7 7.Be2 O-O 8.O-O Bg4 9.h3 Bxf3 10.Bxf3 Nc6 11.Be3 Nd7 12.Rc1 e5 13.d5 Nd4 14.Bxd4 exd4 15.Nb5 Qb6 16.a4 a6 17.Na3 Qxb2 18.Nc4 Qb4 19.Qe2 Rac8 20.Nd2 Rxc1 21.Rxc1 Nc5 22.Nc4 d3 23.Qe1 Qxa4 24.Nxd6 b6 25.e5 Qd4 26.Nc4 b5 27.Na5 d2 28.Qd1 dxc1=Q 29.Qxc1 Bxe5 30.Nc6 Qa1 31.Qxa1 Bxa1 32.d6 Bf6 33.Bg4 Re8 34.d7 Re1+ 35.Kh2 Nxd7 36.Bxd7 Be5+ 37.g3 Bd6 38.Kg2 b4 39.Nd4 Rd1 40.Nb3 Rd3 41.Ba4 Kg7 42.h4 Rc3 43.Kf1 Rc2 44.Kg2 Ra2 45.Bc6 a5 46.Bd5 a4 47.Na5 b3 48.Nxb3 axb3 49.Bxb3 Rb2 50.Bd5 Bc5 51.Kh3 Bxf2 52.h5 Be1 53.hxg6 hxg6 54.Bf3 Rb3 55.Kg2 f5 56.g4 Rxf3 57.Kxf3 fxg4+ 58.Kxg4 Kf6 59.Kf4 Ba5 60.Kg4 Bb6 61.Kf4 g5+ 62.Kg4 Kg6 63.Kg3 Kf5 64.Kg2 g4 65.Kh2 Kf4 66.Kg2 g3 67.Kh1 Bc7 68.Kg2 Kg4 69.Kh1 Kf3 70.Kg1 Bb6+ 71.Kf1 g2+ 72.Ke1 g1=Q+ 73.Kd2 Qe3+ 74.Kc2 Ke4 75.Kd1 Qf2 76.Kc1 Kd3 77.Kb1 Kc3 78.Ka1 Kb3 79.Kb1 Qg1# 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1799093 GM Obregon Rivero, J (2520) IM Sahidi, Samir (2407) 0-1
1.Nf3 Nf6 2.g3 d5 3.Bg2 Bg4 4.O-O Nbd7 5.d4 e6 6.h3 Bxf3 7.Bxf3 Bd6 8.Nc3 c6 9.e4 dxe4 10.Nxe4 Nxe4 11.Bxe4 Nf6 12.Bf3 O-O 13.Kg2 e5 14.dxe5 Bxe5 15.c3 Qxd1 16.Rxd1 Rad8 17.Be3 a6 18.Bb6 Rd7 19.Rxd7 Nxd7 20.Be3 Bc7 21.Rd1 Nf6 22.Bg5 Rd8 23.Rxd8+ Bxd8 24.Be3 Kf8 25.Kf1 Ke8 26.Ke2 g6 27.h4 Kd7 28.Kd3 Ke6 29.Kc4 Nd7 30.Bg4+ f5 31.Be2 b5+ 32.Kd3 Ne5+ 33.Kc2 Be7 34.f3 Nc4 35.Bf2 Bd6 36.b3 Ne5 37.c4 Nd7 38.cxb5 cxb5 39.Kc3 Nf6 40.a4 Nd5+ 41.Kc2 bxa4 42.bxa4 a5 43.Bc4 Bb4 44.g4 fxg4 45.fxg4 Ke5 46.h5 Nf6 47.Bg3+ Kd4 48.Be2 Ke3 49.Bd1 Nd5 50.hxg6 hxg6 51.Kb3 g5 52.Kc4 Nc3 53.Bb3 Ne4 54.Be5 Nd2+ 55.Kb5 Nxb3 56.Bf6 Kf4 57.Bd8 Kxg4 58.Kc4 Nc5 59.Kb5 Ne6 60.Bxa5 Bxa5 61.Kxa5 Nc5 62.Kb6 Nxa4+ 63.Kb5 Kf3 0-1
2021.01.02 Titled Arena Jan 2nd 2021
1798894 IM Mischuk, D (2364) GM Obregon Rivero, J (2520) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Re1 Nc6 9.Bf1 Nxd4 10.Qxd4 Be6 11.Qd1 Qa5 12.Bd2 Rfc8 13.Nd5 Qd8 14.Nxf6+ Bxf6 15.c3 a5 16.a4 Rab8 17.Be3 Bc4 18.Bxc4 Rxc4 19.f3 Qd7 20.Qb3 b5 21.axb5 Qxb5 22.Qxb5 Rxb5 23.Ra2 Rc7 24.Rea1 Rcb7 25.Bc1 Ra7 26.Kf1 e6 27.Ke2 Bd8 28.Ra4 d5 29.exd5 Rxd5 30.Rc4 Rad7 31.Raa4 Kg7 32.Be3 h5 33.Re4 e5 34.Rec4 f5 35.Rc5 Rxc5 36.Bxc5 Rb7 37.b4 axb4 38.cxb4 Be7 39.Bxe7 Rxe7 40.b5 Rb7 41.Rb4 Kf6 42.Kd3 Ke6 43.Kc4 Kd6 44.Rb1 Rc7+ 45.Kb4 e4 46.Rd1+ Ke5 47.fxe4 fxe4 48.b6 Rb7 49.Kc5 e3 50.Rd8 Ke4 51.Kc6 Rxb6+ 52.Kxb6 e2 53.Re8+ Kd3 54.Kc5 Kd2 55.Kd4 e1=Q 56.Rxe1 Kxe1 57.Ke3 Kf1 58.Kf3 g5 59.h3 g4+ 60.hxg4 hxg4+ 61.Kg3 Kg1 62.Kxg4 Kxg2 1/2-1/2
2020.12.22 Titled Tuesday 22nd Dec
1802061 GM Karthikeyan, M2 (2606) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f3 Be7 10.h4 h6 11.Be3 h5 12.Kb1 Ne5 13.Bg5 Qc7 14.f4 Neg4 15.g3 b5 16.Bg2 Rb8 17.Rhe1 b4 18.Nd5 exd5 19.exd5 Kf8 20.Qe2 Bb5 21.Qf3 Bd7 22.Rd2 g6 23.Rde2 Re8 24.f5 Ne5 25.Qf4 Bxf5 26.Nxf5 gxf5 27.Qxf5 Nfg4 28.Bf4 Qc8 29.Qe4 Qc4 30.Qf5 a5 31.Bh3 Qc8 32.Qe4 Qc4 33.Qf5 Qc8 34.Qe4 Bf6 35.Qg2 Kg7 36.Rf1 Qc4 37.Bc1 a4 38.Re4 Qc5 39.Ref4 b3 40.Bxg4 Nxg4 41.Qf3 Qxc2+ 42.Ka1 Re2 43.Rxg4+ hxg4 44.Qxf6+ Kh7 45.Qxf7# 1-0
2020.12.22 Titled Tuesday 22nd Dec
1801575 GM Obregon Rivero, J (2520) Storn, Justin (2112) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.d4 O-O 5.c4 d6 6.O-O Nc6 7.Nc3 a6 8.Re1 Rb8 9.Rb1 b5 10.cxb5 axb5 11.b4 d5 12.Ne5 Nxe5 13.dxe5 Ng4 14.f4 c6 15.h3 Qb6+ 16.e3 Nh6 17.g4 f6 18.exf6 exf6 19.Ne2 Nf7 20.Nd4 Nd6 21.Kh1 Re8 22.Nxc6 Kh8 23.Nxb8 Qxb8 24.Bb2 Nc4 25.Qxd5 Be6 26.Qb7 Qxb7 27.Bxb7 h5 28.Bc6 Rb8 29.gxh5 gxh5 30.Kh2 Bh6 31.Bd4 Kh7 32.Bxf6 Bf5 33.Rbc1 Nxe3 34.Rxe3 Bxf4+ 35.Rg3 h4 36.Bxh4 Bxc1 37.Rf3 Bg6 38.Bg3 Rb6 39.Rc3 Bb2 40.Rc5 Ba3 41.Be1 Bd3 42.Bc3 Bc4 43.Bd5 Bc1 44.Bxc4 bxc4 45.Rxc4 Ra6 46.b5 Rxa2+ 47.Kg3 Ra3 48.Kf2 Rb3 49.Rc5 Bf4 50.Bd4 Bd6 51.Rd5 Bf4 52.b6 Rxh3 53.Rf5 Bd6 54.Rf7+ Kg6 55.Rf6+ Kg5 56.Rxd6 Rb3 57.Ke2 Kf5 58.Kd2 Ke4 59.Kc2 Rb5 60.Kc3 Rb1 61.Kc4 Rc1+ 62.Kb5 Rb1+ 63.Kc6 Rc1+ 64.Bc5 Rb1 65.b7 Ke5 66.Rd2 Ke6 67.Kc7 Rxb7+ 68.Kxb7 Ke5 69.Kc6 Ke4 70.Kd6 Kf3 71.Ke5 Kg3 72.Ke4 Kh3 73.Rd5 Kh4 74.Kf4 Kh3 75.Rd2 Kh4 76.Rh2# 1-0
2020.12.22 Titled Tuesday 22nd Dec
1801726 WFM Kirchei, Viktoriia (2207) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.c4 Nc6 6.Qd1 Nf6 7.Nc3 Bg4 8.h3 Bxf3 9.Qxf3 g6 10.Bf4 Bg7 11.Qe3 O-O 12.Be2 Qa5 13.O-O Rac8 14.a3 Nd7 15.b4 Qb6 16.Rac1 Qxe3 17.Bxe3 Nd4 18.Bxd4 Bxd4 19.Nd5 Rfe8 20.Rfd1 Bg7 21.Bg4 e6 22.Ne3 Bb2 23.Rb1 Be5 24.g3 g5 25.Be2 Nf6 26.Bd3 Bd4 27.Ng4 Nxg4 28.hxg4 Kg7 29.Be2 e5 30.Rb3 Rc7 31.a4 Rec8 32.b5 a5 33.Rbd3 Rxc4 34.Ra3 Rc2 35.Re1 Bc3 36.Rd1 Rxe2 37.Rc1 Re1+ 38.Rxe1 Bxe1 0-1
2020.12.01 Titled Tuesday 1st Dec
1817868 Mickiewicz, P (2233) GM Obregon Rivero, J (2520) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Qd3 Nf6 7.Nc3 g6 8.Bg5 Bg7 9.O-O-O O-O 10.e5 Nxe5 11.Nxe5 Bxb5 12.Qxb5 a6 13.Qxb7 Rb8 14.Qxa6 Qc7 15.Nc6 Ra8 16.Qb5 Rfc8 17.Bxf6 Bxf6 18.Nd5 Qxc6 19.Nxf6+ exf6 20.Qxc6 Rxc6 21.a3 Ra5 22.Rhe1 Kf8 23.Re3 f5 24.b4 Rb5 25.Kb2 f4 26.Red3 Ke7 27.Rd5 Rbb6 28.Kb3 f5 29.a4 Ke6 30.a5 Rb7 31.c4 Ra6 32.Ka4 Rc7 33.R1d4 Rxc4 34.Rxd6+ Rxd6 35.Rxc4 Ke5 36.b5 Rd2 37.a6 Rxf2 38.Ka5 Rxg2 39.a7 Ra2+ 40.Ra4 Rxa4+ 41.Kxa4 f3 42.a8=Q Kf4 43.Qb8+ Ke3 44.Qg3 Ke2 45.b6 f2 46.Qg2 Ke1 47.b7 f1=Q 48.Qxf1+ Kxf1 49.b8=Q Ke2 50.Qf4 h6 51.h4 1-0
2020.12.01 Titled Tuesday 1st Dec
1817651 GM Obregon Rivero, J (2520) GM Dominguez Perez, L (2758) 0-1
1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 c5 5.e3 cxd4 6.exd4 Bb4 7.cxd5 Nxd5 8.Bd2 Nc6 9.Bd3 O-O 10.O-O Nf6 11.a3 Be7 12.Bg5 h6 13.Bh4 Nh5 14.Bxe7 Nxe7 15.Ne4 Nf4 16.Bc2 b6 17.Qd2 Ned5 18.Rfe1 Bb7 19.Ne5 Rc8 20.Rac1 f5 21.Ng3 Qg5 22.Nf3 Qf6 23.Bb3 Kh7 24.Ne2 Ng6 25.Rxc8 Rxc8 26.Ne5 Nxe5 27.dxe5 Qxe5 28.Bxd5 Qxd5 29.Qxd5 Bxd5 30.Nf4 Rc2 31.f3 Rxb2 32.Nxe6 Bxe6 33.Rxe6 Rb3 34.a4 Ra3 35.Re5 Rxa4 36.Rxf5 a5 37.Rd5 Rb4 38.Rd7 a4 39.Ra7 b5 40.g4 Rb3 41.Kg2 a3 42.h4 b4 43.Kg3 Rb2 44.g5 hxg5 45.hxg5 a2 46.Kg4 b3 47.Kf5 Rf2 48.g6+ Kh6 49.f4 Kh5 50.Ra8 Kh4 51.Rh8+ Kg3 52.Rh1 Rxf4+ 53.Kg5 Rf2 54.Rg1+ Rg2 55.Rd1 b2 56.Rd3+ Kh2+ 57.Kf4 b1=Q 58.Re3 0-1
2020.12.01 Titled Tuesday 1st Dec
1818283 GM Obregon Rivero, J (2520) FM Toczek, G (2271) 1-0
1.e4 c5 2.d4 cxd4 3.c3 Nf6 4.e5 Nd5 5.Qxd4 Nb6 6.Nf3 Nc6 7.Qe4 g6 8.a4 d5 9.exd6 Qxd6 10.Na3 Qe6 11.Bd3 a6 12.O-O Qxe4 13.Bxe4 Bg7 14.Be3 Nxa4 15.Nc4 Nxb2 16.Nxb2 Bxc3 17.Rab1 f5 18.Bxc6+ bxc6 19.Rfc1 Bf6 20.Bd4 O-O 21.Na4 Be6 22.Nc5 Bd5 23.Nd7 Rfd8 24.Nxf6+ exf6 25.Bxf6 Rd7 26.Ba1 a5 27.Ne5 Rc7 28.Rc5 a4 29.Rbc1 Raa7 30.Nxc6 a3 31.Nxa7 Rxa7 32.Rxd5 1-0
2020.12.01 Titled Tuesday 1st Dec
1817269 WGM Belenkaya, D (2293) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nc3 e6 3.g3 Nc6 4.Bg2 Nf6 5.Nge2 Qc7 6.O-O a6 7.d4 cxd4 8.Nxd4 Nxd4 9.Qxd4 Bc5 10.Qd3 d6 11.Bg5 Nd7 12.Rad1 Ne5 13.Qe2 O-O 14.Bf4 b5 15.a3 Bb7 16.Kh1 Rac8 17.a4 b4 18.Nb1 a5 19.Nd2 Qc6 20.Bxe5 dxe5 21.b3 Ba6 22.Nc4 Bd4 23.f4 Bxc4 24.Qxc4 Qxc4 25.bxc4 Rxc4 26.Rd2 Rfc8 27.fxe5 Bxe5 28.Rfd1 g6 29.Rd8+ Kg7 30.Rxc8 Rxc8 31.Rd2 b3 32.c4 b2 33.Rd1 Rxc4 34.Bf3 Rc1 0-1
2020.12.01 Titled Tuesday 1st Dec
1818569 FM Koellner, Ruben Gideon (2412) GM Obregon Rivero, J (2520) 1-0
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.g3 f5 5.e3 d6 6.Bg2 Nd7 7.Ne2 h5 8.h4 Nf6 9.c4 Bh6 10.Nbc3 Ng4 11.Qd3 c6 12.b4 Qe7 13.b5 Bd7 14.a4 O-O 15.O-O g5 16.hxg5 Qxg5 17.Bf3 h4 18.Kg2 hxg3 19.Nxg3 Rae8 20.Rae1 Nxf2 21.Kxf2 Rxe3 22.Rxe3 f4 23.Ree1 Qxg3+ 24.Ke2 Re8+ 25.Kd1 Rxe1+ 26.Rxe1 Bg4 27.Rf1 Qh3 28.Kc2 Bf5 29.Be4 Qh2+ 30.Qe2 Bxe4+ 31.Kb3 Qxe2 32.Nxe2 Bd3 33.Rg1+ Kf8 34.Nc1 Be4 35.Kc3 f3 36.Nd3 f5 37.Rf1 d5 38.cxd5 Bxd5 39.bxc6 Bxc6 40.a5 Be3 41.Ne5 f2 42.Nxc6 bxc6 43.Kd3 Ke7 44.Kxe3 Kd6 45.Rxf2 Ke6 46.Kd3 Kd5 47.Rxf5+ Kd6 48.Rc5 1-0
2020.06.02 Titled Tuesday 2nd June
1964054 Leve, Nitai (2128) GM Obregon Rivero, J (2520) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be2 Nc6 6.Qe3 Nf6 7.h3 g6 8.c4 Bg7 9.O-O O-O 10.Rd1 Be6 11.e5 Ne8 12.exd6 exd6 13.Nc3 Qc7 14.Ng5 Kh8 15.Nxe6 fxe6 16.Qxe6 Nd4 17.Qe4 Nxe2+ 18.Qxe2 Rc8 19.Bg5 Qxc4 20.Qxc4 Rxc4 21.Be7 Rf7 22.Bxd6 Nxd6 23.Rxd6 Bxc3 24.Rc1 Rcf4 25.Rxc3 Rxf2 26.Rb3 Rc2 27.Rdb6 Rff2 28.Rxb7 Rxg2+ 29.Kh1 Rh2+ 30.Kg1 Rcg2+ 31.Kf1 Rc2 32.Kg1 Rhd2 33.Rf7 Kg8 34.Rbb7 Rd1+ 35.Rf1 Rdd2 36.Re1 Kf8 37.Rf1+ Kg8 38.Re1 Rg2+ 39.Kh1 Rh2+ 40.Kg1 Rcg2+ 41.Kf1 Rf2+ 42.Kg1 Rhg2+ 43.Kh1 Re2 44.Rxe2 Rxe2 45.Ra7 Rxb2 46.Rxa6 Kg7 47.a4 h5 48.Ra8 Kh6 49.a5 Kg5 50.a6 Kh4 51.Rg8 Rb1+ 52.Kh2 Rb2+ 53.Kh1 Kxh3 54.Rxg6 Ra2 55.Kg1 Ra1+ 56.Kf2 h4 57.a7 Rxa7 58.Rg8 Ra3 59.Kf1 Rg3 60.Rh8 Ra3 61.Kg1 Ra1+ 62.Kf2 Ra2+ 63.Kg1 Ra3 64.Rg8 Ra7 65.Kf2 Ra3 66.Rh8 Ra2+ 67.Kf3 Ra3+ 68.Kf2 Rg3 69.Kf1 Rg5 70.Kf2 Rf5+ 71.Kg1 Ra5 72.Kf2 Ra3 73.Kf1 Ra2 74.Kg1 Kg3 75.Rg8+ Kh3 76.Rh8 1/2-1/2
2020.06.02 Titled Tuesday 2nd June
1964831 FM Selbes, T (2235) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 a6 8.Bb3 Qc7 9.Qe2 Na5 10.g4 Nxb3 11.axb3 Be7 12.g5 Nd7 13.Rg1 O-O 14.Rg3 Re8 15.O-O-O b5 16.Qh5 Nf8 17.Kb1 b4 18.Na4 Bb7 19.f3 Rac8 20.Rd2 d5 21.exd5 Bxd5 22.f4 Be4 23.Ka2 e5 24.fxe5 Qxe5 25.Qg4 Ne6 26.Nxe6 Qxe6 27.Qxe6 fxe6 28.c3 Rcd8 29.Rxd8 Rxd8 30.cxb4 Bxb4 31.Nc3 Bf5 32.Rf3 Rd3 33.Rg3 Bd6 34.Rf3 Bg4 0-1
2020.06.02 Titled Tuesday 2nd June
1963043 GM Obregon Rivero, J (2520) CM Klimciauskas, D (2197) 1/2-1/2
1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Bc4 c6 5.Bb3 Nf6 6.Qe2 O-O 7.h3 a5 8.a4 b6 9.e5 Nd5 10.O-O Ba6 11.c4 e6 12.Bg5 Qc7 13.Nbd2 dxe5 14.dxe5 Nb4 15.Ne4 Nd7 16.Nf6+ Bxf6 17.exf6 Nc5 18.Qe3 Rfd8 19.Bh4 Qd6 20.Rfd1 Qf8 21.Bg3 Nbd3 22.Ba2 Rd7 23.Ne5 Nxe5 24.Bxe5 Rad8 25.Rxd7 Rxd7 26.Bb3 Rd3 27.Qf4 Nxb3 28.Re1 Nc5 29.Bc7 Nd7 30.Qe4 Rd2 31.Qxc6 Nxf6 32.Bxb6 Qc8 33.Qf3 Ne8 34.Bxa5 Rd7 35.Bc3 Bb7 36.Qe3 Qc6 37.f3 f6 38.Qf2 e5 39.Qe2 Qd6 40.Qe3 Qd3 41.Qxd3 Rxd3 42.a5 Nc7 43.Ra1 Ba6 44.Ra3 Bxc4 45.Ra4 Ba6 46.Rb4 Nb5 47.Rc4 Nxc3 48.Rc6 Bb5 49.Rc8+ Kf7 50.bxc3 Ke6 51.Rc7 Kd5 52.Rxh7 Rxc3 53.Rg7 g5 54.Rb7 Rc1+ 55.Kh2 Bc6 56.Rb6 Ra1 57.a6 Kc5 58.Rb8 Rxa6 59.Rf8 Bd5 60.h4 gxh4 61.Kh3 Kd4 62.Kxh4 Ke3 63.Kg3 Rd6 64.Rb8 Kd4 65.Rb4+ Bc4 66.Rb1 Kd5 67.Rc1 Bb3 68.Rc3 Bc4 69.Rc1 Rc6 70.Rd1+ Ke6 71.Rh1 Bd5 72.Rh8 Rc2 73.Re8+ Kf5 74.Rd8 Bc4 75.Rd1 Be2 76.Re1 Rd2 77.Rh1 Bd3 78.Re1 Re2 79.Rd1 Bc4 80.Rc1 Be6 81.Rh1 Bd5 82.Rh5+ Ke6 83.Rh8 e4 84.fxe4 Bxe4 85.Kf4 f5 86.g4 Rf2+ 87.Kg5 Rg2 88.Rh6+ Kd5 89.Rh4 Rxg4+ 90.Rxg4 fxg4 91.Kxg4 1/2-1/2
2020.06.02 Titled Tuesday 2nd June
1963582 GM Obregon Rivero, J (2520) FM Stromboli, E (2308) 0-1
1.Nf3 b6 2.g3 Bb7 3.Bg2 e6 4.c4 Nf6 5.b3 d5 6.Bb2 Be7 7.O-O dxc4 8.bxc4 c5 9.Nc3 O-O 10.e3 Nc6 11.Qe2 Qc7 12.Rad1 Rad8 13.d3 a6 14.a4 Nb4 15.Ne1 Bxg2 16.Kxg2 Rd7 17.f4 Rfd8 18.g4 Qc6+ 19.e4 Ne8 20.g5 Nc7 21.Rf3 b5 22.cxb5 axb5 23.Rh3 g6 24.Qg4 f5 25.gxf6 Bxf6 26.Ba1 bxa4 27.Kh1 c4 28.f5 exf5 29.Qg2 Nxd3 30.Nd5 Nxd5 31.exd5 Rxd5 32.Nxd3 Bxa1 33.Ne1 c3 34.Rxd5 Qxd5 35.Rd3 Qxg2+ 36.Kxg2 Rxd3 37.Nxd3 c2 0-1
2020.06.02 Titled Tuesday 2nd June
1964368 GM Obregon Rivero, J (2520) Mickiewicz, P (2186) 1-0
1.Nf3 c5 2.g3 Nf6 3.Bg2 g6 4.O-O Bg7 5.c4 d6 6.Nc3 Nc6 7.d4 cxd4 8.Nxd4 Bd7 9.Nc2 O-O 10.b3 Qa5 11.Qd2 Rfc8 12.Bb2 Rab8 13.Rfd1 a6 14.a3 Qh5 15.Rab1 b5 16.Nd5 Nxd5 17.cxd5 Ne5 18.Ne3 Rc5 19.f4 Ng4 20.Nxg4 Bxg4 21.Bxg7 Kxg7 22.b4 Rc4 23.Rdc1 Bxe2 24.Re1 Bf3 25.Rxe7 Bxg2 26.Qxg2 Rbc8 27.Qb2+ Kf8 28.Rbe1 Rc3 29.R7e3 Rxe3 30.Rxe3 Kg8 31.Qd2 Qf5 32.Qd3 Rc1+ 33.Kg2 Rc2+ 34.Kg1 Qxd3 35.Rxd3 Kf8 36.a4 Ke7 37.axb5 axb5 38.Ra3 Rb2 39.Ra7+ Kf6 40.Rd7 Rxb4 41.Rxd6+ Kf5 42.Rd7 f6 43.Rxh7 Rd4 44.Rd7 b4 45.Kg2 Ke4 46.d6 Rd2+ 47.Kh3 b3 48.Re7+ Kd3 49.Rb7 Kc2 50.d7 b2 51.Rc7+ Kd1 52.Rb7 Kc1 53.Rc7+ Kd1 54.Rb7 f5 55.Kh4 Rxh2+ 56.Kg5 Rd2 57.Rxb2 Rxd7 58.Kxg6 Rd3 59.Rg2 Ke1 60.Kxf5 Kf1 61.Ra2 Rxg3 62.Ke5 Rg8 63.f5 Re8+ 64.Kf6 1-0
2020.06.02 Titled Tuesday 2nd June
1963397 WIM Tereladze, S (2141) GM Obregon Rivero, J (2520) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 a6 5.Be3 Nc6 6.Qd2 Nf6 7.Nc3 e6 8.h3 Be7 9.Be2 O-O 10.O-O b5 11.a3 Qc7 12.Rfe1 Bb7 13.Bd3 Na5 14.Rad1 Nc4 15.Bxc4 Qxc4 16.e5 Nd5 17.Nxd5 Bxd5 18.exd6 Bxd6 19.Nd4 Rac8 20.c3 Bb8 21.Nf5 Rfe8 22.Ng3 Qc6 23.f4 a5 24.Bd4 Qc7 25.Rf1 Ba7 26.Qe3 Bxd4 27.Rxd4 Rb8 28.Ne4 b4 29.axb4 axb4 30.Re1 bxc3 31.Nxc3 Ba8 32.Qf2 Qb6 33.Rd2 Qb7 34.Ne4 Qc7 35.Ng5 h6 36.Ne4 Rbd8 37.Rxd8 Rxd8 38.Qg3 Qe7 39.Qc3 Qa7+ 40.Kh1 Bxe4 41.Rxe4 Qb7 42.Re1 Rb8 43.Re2 Qd5 44.Rd2 Qe4 45.Qf3 Qxf3 46.gxf3 Rb4 47.Rd3 Rxb2 48.Re3 Kh7 49.Kg1 Rb4 50.Kg2 Rxf4 51.Ra3 Rf5 52.Ra7 h5 53.Kg3 Kg6 54.h4 Re5 55.Rb7 Rd5 56.Rb8 Rf5 57.Rb7 Ra5 58.Rb8 Kf6 59.Rb7 g6 60.Rb8 Rf5 61.Rb7 Rd5 62.Rb8 Rd7 63.Rb6 Ke7 64.Rb4 e5 65.Ra4 Rd6 66.Ra7+ Ke6 67.Rb7 Kf6 68.Ra7 Re6 69.Rb7 e4 70.fxe4 Rxe4 71.Rb6+ Kg7 72.Rb3 Rg4+ 73.Kh3 Rf4 74.Rc3 Rf5 75.Rb3 Kf6 76.Rd3 Re5 77.Rf3+ Ke6 78.Rc3 Kf6 79.Rf3+ Kg7 80.Ra3 Re7 81.Ra4 f6 82.Ra3 Re4 83.Ra7+ Kh6 84.Ra6 Rf4 85.Kg3 Rg4+ 86.Kh3 f5 87.Rb6 f4 88.Rb7 Rg3+ 89.Kh2 Re3 90.Rf7 Rf3 91.Kg2 Rg3+ 92.Kh2 Rg4 93.Kh3 g5 0-1
2020.06.02 Titled Tuesday 2nd June
1965454 GM Obregon Rivero, J (2520) GM Narayanan, Sri (2540) 0-1
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.c4 Bg7 5.Nc3 e6 6.d4 cxd4 7.Nb5 d5 8.cxd5 exd5 9.O-O Nge7 10.Nbxd4 O-O 11.b3 Bg4 12.Bb2 Bxf3 13.Bxf3 Qb6 14.Nxc6 bxc6 15.Bxg7 Kxg7 16.Rc1 Rac8 17.Qd2 Rfd8 18.Rc3 c5 19.Rfc1 d4 20.Rc4 a5 21.Qc2 Qf6 22.Kg2 Rc7 23.Rxc5 Rxc5 24.Qxc5 Rc8 25.Qa3 Rc3 26.Rd1 Qe5 27.Qb2 h5 28.Qd2 Nf5 29.h4 Kg8 30.Qg5 Kg7 31.Qd2 Kg8 32.Qb2 Kg7 33.Rd3 Qc5 34.Qd2 Rc2 35.Qf4 Rxa2 36.Be4 Nd6 37.Rf3 f5 38.Bd3 Ra1 39.Bc4 Nxc4 40.bxc4 Qxc4 41.Qe5+ Kf7 42.Qh8 Rc1 43.Qh7+ Kf6 44.Qh8+ Ke7 45.Qg7+ Qf7 46.Qxd4 Rc6 47.Qe5+ Qe6 48.Qg7+ Qf7 49.Re3+ Re6 50.Rxe6+ Kxe6 51.Qd4 Qb7+ 52.f3 Qb5 53.Qe3+ Kf7 54.Qe5 Qxe5 0-1
2020.06.02 Titled Tuesday 2nd June
1965209 GM Obregon Rivero, J (2520) GM Gasanov, E (2481) 1/2-1/2
1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.c4 e6 5.Qc2 Nd7 6.b3 Ngf6 7.O-O Be7 8.Bb2 O-O 9.d3 a5 10.a3 Qb6 11.Nbd2 Rfc8 12.h3 Bh5 13.g4 Bg6 14.Nh4 Bd6 15.Nxg6 hxg6 16.e3 Qd8 17.Rfe1 g5 18.d4 Nf8 19.Nf3 Ne4 20.Ne5 f6 21.Nd3 Ng6 22.Nc5 Bxc5 23.dxc5 f5 24.f3 Nxc5 25.gxf5 exf5 26.b4 axb4 27.axb4 Rxa1 28.Bxa1 Ne6 29.Qxf5 Qe8 30.cxd5 cxd5 31.Qxd5 Nh4 32.f4 Nxg2 33.Kxg2 Rc2+ 34.Kg1 Qf7 35.f5 Nc7 36.Qxf7+ Kxf7 37.Bd4 Nb5 38.Rd1 Re2 39.Bc5 Ke8 40.Rd5 Nc3 41.Re5+ Kf7 42.Re7+ Kg8 43.Rxb7 Ne4 44.Bd4 Ng3 45.Rxg7+ Kf8 46.Rc7 Nxf5 47.Bc5+ Ke8 48.b5 Nh4 49.b6 Rd2 50.Kf1 Nf3 51.b7 Nh2+ 52.Ke1 Nf3+ 53.Kf1 Nh2+ 54.Ke1 Nf3+ 55.Kf1 1/2-1/2
2020.06.02 Titled Tuesday 2nd June
1964519 WIM Potapova, Margarita (2270) GM Obregon Rivero, J (2520) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.h3 d6 6.Be3 c5 7.d5 e6 8.Nf3 exd5 9.exd5 Bf5 10.Nd2 Re8 11.Be2 Ne4 12.Ndxe4 Bxe4 13.Nxe4 Rxe4 14.O-O Nd7 15.Qc2 Qe7 16.Bf3 Rxe3 17.fxe3 Qxe3+ 18.Kh1 Be5 19.Qf2 Qf4 20.g3 Qxg3 21.Qxg3 Bxg3 22.Kg2 Be5 23.Rae1 f5 24.Rb1 a5 25.b3 Rb8 26.Be2 Kg7 27.a3 Ra8 28.Bd3 Bd4 29.Rfe1 Ne5 30.Bf1 f4 31.Re4 g5 32.h4 h6 33.Be2 b6 34.Rh1 Rf8 35.Bd1 g4 36.b4 axb4 37.axb4 f3+ 38.Kg3 h5 39.Ba4 Ra8 40.Bc6 Ra2 41.Rh2 Ra1 42.Kf4 Kf6 43.bxc5 Ng6+ 44.Kg3 Rg1+ 0-1
2020.03.16 2nd ITT FENAMAC GpA 2020
1996399 FM Gracia Alvarez, Gerardo Antonio (2284) IM Obregon Rivero, J (2513) 0-1
1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7 5.Bg2 O-O 6.O-O c6 7.Qc2 b6 8.Rd1 Bb7 9.Ne5 Nfd7 10.e4 Nxe5 11.dxe5 d4 12.f4 c5 13.Nd2 Qd7 14.Nf3 Rd8 15.Ne1 b5 16.cxb5 Qxb5 17.Bf1 Qc6 18.Bd3 Nd7 19.Nf3 c4 20.Bxc4 Rac8 21.b3 d3 22.Rxd3 Qxe4 23.Bb2 Bc5+ 24.Kf1 Qf5 25.Qe2 Be4 26.Rdd1 Nb6 27.Rxd8+ Rxd8 28.Rd1 Rxd1+ 29.Qxd1 Nxc4 30.bxc4 Bxf3 0-1
2020.03.16 2nd ITT FENAMAC GpA 2020
1997450 IM Obregon Rivero, J (2513) GM Cori Quispe, Kevin Joel (2493) 1/2-1/2
1.c4 c5 2.Nf3 Nc6 3.Nc3 e5 4.d3 g6 5.Bg5 f6 6.Bd2 d6 7.a3 Bg7 8.g3 Nge7 1/2-1/2
2020.03.15 2nd ITT FENAMAC GpA 2020
1997441 IM Obregon Rivero, J (2513) IM Perez Garcia, Rodn (2332) 1-0
1.c4 d6 2.d4 e5 3.Nf3 e4 4.Nfd2 f5 5.Nc3 Nf6 6.e3 c5 7.Nb3 Nc6 8.Be2 Be7 9.h3 O-O 10.g4 Ne8 11.dxc5 dxc5 12.Qxd8 Nxd8 13.Nd5 Bh4 14.Nxc5 b6 15.Na4 fxg4 16.hxg4 Bxf2+ 17.Kd2 Nc6 18.Nac3 Nd6 19.b3 Bg3 20.Ba3 Bb7 21.Rh3 Be5 22.Rah1 1-0
2020.03.15 2nd ITT FENAMAC GpA 2020
1997443 WIM Corrales Jimenez, Z (2194) IM Obregon Rivero, J (2513) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Nb3 Bg7 8.O-O O-O 9.Re1 Be6 10.Bf1 d5 11.Nc5 d4 12.Ne2 Bc8 13.e5 Ng4 14.f4 Qb6 15.Nd3 f6 16.exf6 Bxf6 17.h3 Ne3 18.Bxe3 dxe3 19.Kh1 Bf5 20.Ng3 Bh4 21.Kh2 Rad8 22.Nxf5 Bxe1 23.Nxe3 Bg3+ 24.Kxg3 Qxe3+ 25.Qf3 Qxf3+ 26.gxf3 Nd4 27.Re1 Nxc2 28.Rxe7 Rf7 29.Re4 Nd4 30.Ne5 Rc7 31.Bc4+ Kg7 32.h4 Nf5+ 33.Kh3 Rd1 34.h5 Nd6 35.hxg6 Nxe4 36.fxe4 hxg6 37.b3 Rd2 38.a4 Rxc4 39.Nxc4 Rd3+ 40.Kg4 Rxb3 41.a5 b5 42.axb6 axb6 43.e5 b5 44.Nd6 b4 45.f5 gxf5+ 46.Kxf5 Re3 47.e6 b3 48.Nc4 Re2 49.Na3 b2 0-1
2020.03.14 2nd ITT FENAMAC GpA 2020
1997435 IM Obregon Rivero, J (2513) FM Benitez Lozano, J (2373) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3 a6 6.O-O d6 7.Bb3 h6 8.Re1 O-O 9.h3 Ba7 10.Nbd2 Ne7 11.Nf1 Ng6 12.Ng3 Be6 13.d4 Re8 14.Bc2 c6 15.Be3 Qc7 16.Qc1 Rad8 17.Nf5 Bxf5 18.exf5 e4 19.Nd2 Nh4 20.Bf4 Nxf5 21.Nxe4 Nxe4 22.Bxe4 Qd7 23.Qc2 Ne7 24.Re2 d5 25.Bh7+ Kh8 26.Bd3 Bb8 27.Bd2 Ng8 28.Rae1 Rxe2 29.Rxe2 Re8 30.Bc1 g6 31.Kf1 Kg7 32.Qd2 Re6 33.Qe1 Rxe2 34.Qxe2 h5 35.a4 Qe7 36.Qd2 Qe6 37.b3 Bd6 38.c4 Qe7 39.c5 Bc7 40.b4 Qe6 41.Qg5 Qe7 42.Qd2 Qe6 43.Bc2 Ne7 44.Qh6+ Kg8 45.Qg5 Nf5 46.Bb2 Kg7 47.g4 hxg4 48.hxg4 Nh6 49.f3 f5 50.Bc1 Nf7 51.Qh4 fxg4 52.fxg4 Bd8 53.g5 Qe7 54.Bf4 Bc7 55.Bd2 Bd8 56.Bf4 Bc7 57.Bd2 Bd8 58.Bf4 1/2-1/2
2020.03.13 2nd ITT FENAMAC GpA 2020
1997428 FM Tapie, P (2260) IM Obregon Rivero, J (2513) 0-1
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6 4.c4 f5 5.e3 d6 6.g3 Nd7 7.Bg2 Nf6 8.Nc3 h5 9.h4 Bh6 10.Nge2 Ng4 11.c5 O-O 12.Nf4 c6 13.d5 dxc5 14.dxc6 bxc6 15.O-O Rb8 16.Qxd8 Rxd8 17.Rfd1 Ba6 18.Na4 Bxf4 19.gxf4 Be2 20.Rxd8+ Rxd8 21.Nxc5 Rd2 22.b4 Bc4 23.a4 Rxf2 24.Bxc6 Rb2 25.b5 Nxe3 26.Nb7 Bd5 27.Bxd5 Nxd5 28.Nd6 Nxf4 29.Nc8 Ne2+ 30.Kg2 Nc3+ 31.Kf3 Rb3 32.Kg2 Rb4 33.Nxa7 Nxa4 34.Rc1 Rxh4 35.Nc6 Re4 36.Ra1 Kg7 37.Kf3 h4 38.Rb1 Nb6 39.Ra1 g5 40.Ra6 g4+ 41.Kf2 g3+ 42.Kf3 Nc4 0-1
2020.03.13 2nd ITT FENAMAC GpA 2020
1997431 IM Obregon Rivero, J (2513) FM Leon, Orlando (2249) 1-0
1.c4 c6 2.e4 d5 3.exd5 cxd5 4.cxd5 Qxd5 5.Nc3 Qd8 6.d4 e6 7.Nf3 Nf6 8.Bd3 Be7 9.O-O O-O 10.Re1 Nc6 11.a3 b6 12.Bc2 Bb7 13.Qd3 h6 14.Ne4 Re8 15.Nxf6+ Bxf6 16.Qh7+ Kf8 17.Be4 Na5 18.Bd2 Nc6 19.Bc1 Ke7 20.d5 Rh8 21.dxc6 Bxc6 22.Qxh8 Qxh8 23.Bxc6 Rc8 24.Be4 g5 25.Rb1 g4 26.Nd2 h5 1-0
2019.12.18 31st Carlos Torre Mem
2037587 IM Obregon Rivero, J (2513) FM Vitier Vazquez, C (2405) 1/2-1/2
1.c4 c5 2.g3 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.Nf3 d6 6.O-O e6 7.d3 Nge7 8.Bd2 b6 9.a3 Bb7 10.Rb1 Qd7 11.b4 Rd8 12.Qa4 Ba8 13.Nb5 O-O 14.Rfd1 h6 15.e3 e5 16.Bc3 g5 17.bxc5 dxc5 18.Ba1 Ng6 19.Nc3 Nce7 20.Qxd7 Rxd7 21.e4 f5 22.Ne1 g4 23.a4 f4 24.f3 h5 25.a5 bxa5 26.Na4 fxg3 27.Nxc5 gxh2+ 28.Kxh2 Rd6 29.d4 exd4 30.Ned3 Nh4 31.fxg4 Nxg2 32.Kxg2 hxg4 33.Rf1 Rxf1 34.Rxf1 Ng6 35.Kg3 Ne5 36.Nxe5 Bxe5+ 37.Kxg4 Rf6 38.Rxf6 Bxf6 39.Kf3 Kf7 40.Bb2 Be5 41.Ke2 d3+ 42.Nxd3 Bxb2 43.Nxb2 Bxe4 44.Kd2 Ke6 45.Kc3 Kd6 46.Kd4 Bc2 47.Kc3 Be4 48.Kd4 Bc2 49.Kc3 Be4 50.Kd4 1/2-1/2
2019.12.17 31st Carlos Torre Mem
2037553 IM Obregon Rivero, J (2513) FM Noboa Silva, Kevin (2306) 1-0
1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.e3 Bb4 5.Qc2 a5 6.a3 Bxc3 7.Qxc3 Qe7 8.Be2 O-O 9.O-O d5 10.d3 a4 11.b4 axb3 12.cxd5 Nxd5 13.Qxb3 Nb6 14.Bd2 Be6 15.Qb2 Qd6 16.Rfc1 Ra7 17.Ng5 Bf5 18.e4 Bd7 19.Be3 Na4 20.Qc2 b6 21.Nf3 Rfa8 22.h3 h6 23.Rf1 Ra5 24.Rfc1 Nc5 25.Qb2 Ne6 26.Rc3 Ned4 27.Bd1 Nxf3+ 28.Bxf3 Nd4 29.Bxd4 Qxd4 30.Qc1 R8a7 31.Bg4 Bxg4 32.hxg4 Rb5 33.Ra2 Rb1 34.Qxb1 Qxc3 35.a4 Qc6 36.Qb3 Qc1+ 37.Kh2 Qf4+ 38.Kh3 g5 39.Qd1 Kg7 40.g3 Qf6 41.Kg2 Qe6 42.Rb2 Qd7 43.Rb4 Ra5 44.Rc4 Qd6 45.Qc2 c5 46.Qc3 Ra7 47.Qb3 Qc6 48.Qc2 Qe6 49.Qb2 Rd7 50.Rc3 Rd4 51.a5 bxa5 52.Rxc5 a4 53.Qb5 Qd7 54.Rc6 Qe7 55.Qa6 a3 56.Rxh6 a2 57.Rh1 Qe6 58.Qa8 f6 59.Qa7+ 1-0
2019.12.17 31st Carlos Torre Mem
2037565 IM Ibarra Chami, L (2423) IM Obregon Rivero, J (2513) 1-0
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.e4 d6 6.Nge2 c5 7.O-O Nc6 8.d3 a6 9.h3 Rb8 10.a4 Ne8 11.Be3 Nc7 12.d4 cxd4 13.Nxd4 Ne6 14.Nde2 Nc5 15.Rb1 f5 16.b4 Nxe4 17.Nxe4 fxe4 18.Qd5+ Kh8 19.Nf4 Ne5 20.b5 axb5 21.cxb5 Nf3+ 22.Kh1 e5 23.Ne6 Bxe6 24.Qxe6 d5 25.Bb6 Rf6 26.Bxd8 Rxe6 27.Bc7 Rc8 28.Rbc1 Kg8 29.a5 Nd2 30.a6 b6 31.Bxb6 Ra8 32.Bc7 Nxf1 33.Bxf1 Kf8 34.Kg1 1-0
2019.12.16 31st Carlos Torre Mem
2037517 IM Obregon Rivero, J (2513) IM Fernandez Cardoso, A (2441) 0-1
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Nc3 d6 6.Bg2 Nbd7 7.O-O e5 8.Qc2 c6 9.Rd1 Re8 10.dxe5 dxe5 11.Ng5 Qe7 12.Nge4 Nc5 13.Nxc5 Qxc5 14.Na4 Qe7 15.Be3 Bf5 16.Qb3 Qc7 17.Bc5 Qc8 18.Nc3 h5 19.Qa3 e4 20.Bd4 Bf8 21.b4 Nh7 22.c5 h4 23.Qc1 Qe6 24.f3 exf3 25.exf3 h3 26.Bf1 Rad8 27.Ne2 Qe7 28.Qc3 Ng5 29.Kf2 Qc7 30.Bf6 Rxd1 31.Rxd1 Nh7 32.Bd4 Bh6 33.f4 Qd7 34.Qb3 Be6 35.Be5 Bd5 36.Qc3 Qf5 37.Nd4 Qe4 38.Nf3 a5 39.bxa5 Qa4 40.Rd2 Ra8 41.Bxh3 Qxa5 42.Qxa5 Rxa5 43.Bc8 Rxc5 44.Bxb7 Nf8 45.a3 Bxf3 46.Bd4 Rb5 47.Rb2 Rxb2+ 48.Bxb2 Bd5 49.a4 Ne6 50.a5 Bf8 51.a6 Bc5+ 52.Ke1 Ba7 53.Kf1 Nd4 54.h3 Kf8 55.g4 Ke7 56.Kf2 Kd7 57.h4 Nf5+ 58.Ke2 Nxh4 59.Bf6 Nf3 60.Kd3 Bc5 61.g5 Kc7 62.Bc3 Ba7 63.Ba5+ Kd7 64.Bc3 Nh4 65.Be5 Nf5 66.Kc3 Nd6 67.Kd3 Bc4+ 68.Kc3 Bf1 69.Kb4 Nb5 70.Ka5 Nc7 71.Bc3 Nd5 72.Bd2 Be2 0-1
2019.12.16 31st Carlos Torre Mem
2037542 FM Galaviz Medina, Sion Radamantys (2299) IM Obregon Rivero, J (2513) 0-1
1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 c5 5.c4 cxd4 6.Nxd4 O-O 7.O-O Nc6 8.Nc3 Qb6 9.Nc2 d6 10.b3 Be6 11.h3 Rfc8 12.Be3 Qa5 13.Bd2 Rab8 14.e4 Qd8 15.Be3 Qa5 16.Ne2 Ne8 17.Ned4 Nxd4 18.Bxd4 b5 19.Bxg7 Nxg7 20.cxb5 Rxb5 21.Ne3 Nh5 22.Qe2 Rbc5 23.Rfb1 Qa3 24.Qb2 Qb4 25.Rc1 Nf6 26.Rxc5 Rxc5 27.Rc1 Nxe4 28.Nc2 Qc3 29.Qxc3 Nxc3 30.Nd4 Bd7 31.Rc2 e5 32.Ne2 Nxe2+ 33.Rxe2 Rc1+ 34.Kh2 Kf8 35.g4 h6 36.Rb2 Ke7 37.b4 Ba4 38.Be4 Ke6 39.b5 f5 40.gxf5+ gxf5 41.Rb4 Bxb5 42.Bxf5+ Kxf5 43.Rxb5 Rc2 44.Ra5 Rxf2+ 45.Kg3 Rc2 46.Rxa7 d5 47.a4 d4 48.a5 Ke4 0-1
2019.12.15 31st Carlos Torre Mem
2040017 IM Obregon Rivero, J (2513) WIM Miranda Llanes, Y (2280) 1-0
1.c4 c6 2.e4 d5 3.exd5 cxd5 4.cxd5 Qxd5 5.Nc3 Qd8 6.d4 e6 7.Nf3 Nf6 8.Bd3 Be7 9.O-O O-O 10.Re1 b6 11.a3 Bb7 12.Bc2 Nd5 13.Qd3 g6 14.h4 Nxc3 15.bxc3 Bxh4 16.Bh6 Re8 17.Ba4 Bxf3 18.Qxf3 Nd7 19.g3 Be7 20.Qb7 Nf6 21.Bxe8 Nxe8 22.Qf3 Nd6 23.d5 exd5 24.Rad1 Bf8 25.Bxf8 Qxf8 26.Rxd5 Rc8 27.Qf6 Ne8 28.Qd4 Nc7 29.Rd7 Ne6 30.Qf6 Rc7 31.Red1 Rxd7 32.Rxd7 a6 33.c4 Qe8 34.Rd6 Qa4 35.Rxb6 Qxa3 36.Rb7 Qf8 37.Qe5 Qa3 38.c5 Qc1+ 39.Kg2 Qc4 40.Rb8+ Nf8 41.Qd6 1-0
2019.12.15 31st Carlos Torre Mem
2040032 FM Cu Hor, W (2307) IM Obregon Rivero, J (2513) 0-1
1.Nf3 c5 2.c4 g6 3.g3 Bg7 4.Bg2 Nc6 5.Nc3 d6 6.d3 e6 7.O-O Nge7 8.a3 O-O 9.Bd2 b6 10.Rb1 Bb7 11.b4 Qd7 12.e4 Rac8 13.Re1 Rfd8 14.Ne2 Ne5 15.Nf4 cxb4 16.Bxb4 N7c6 17.Bh3 Nxb4 18.axb4 Nxf3+ 19.Qxf3 b5 20.cxb5 Rc2 21.Nd5 Qxb5 22.Ne7+ Kh8 23.Rec1 Rxc1+ 24.Rxc1 f5 25.Qf4 Rf8 26.Rc7 Ba6 27.Qxd6 fxe4 28.Bf1 e3 29.fxe3 Qg5 30.Qc5 Qf6 31.Qc1 Qf2+ 32.Kh1 Qxf1+ 33.Qxf1 Rxf1+ 34.Kg2 Bxd3 35.Rd7 Be2 36.Rd2 Bb5 37.Nc6 Rf8 0-1
2019.12.13 31st Carlos Torre Mem
2039971 IM Obregon Rivero, J (2513) FM Morales Garcia, S (2209) 0-1
1.Nf3 Nf6 2.g3 d5 3.Bg2 c6 4.O-O Bg4 5.d4 Nbd7 6.c4 e6 7.Qb3 Qb6 8.Nc3 h6 9.c5 Qc7 10.Bf4 Qc8 11.Rac1 Be7 12.Nd2 O-O 13.e4 Re8 14.e5 Nh7 15.h3 Bf5 16.g4 Bg6 17.Bg3 f5 18.f4 Kh8 19.Nd1 Rg8 20.Ne3 Nhf8 21.Nf3 Bh7 22.Rf2 Qc7 23.gxf5 Bxf5 24.h4 g6 25.h5 gxh5 26.Nxf5 exf5 27.Bh2 Ne6 28.Kh1 Raf8 29.Bh3 Rf7 30.Qd3 Rg4 31.Rg1 Ndf8 32.Bxg4 hxg4 33.Ne1 h5 34.Nc2 h4 35.Rfg2 Qd7 36.Ne3 Ng7 37.b4 Nfe6 38.Nxg4 fxg4 39.Qg6 Bd8 40.Rxg4 Nxd4 41.Qd3 Ndf5 42.Rg6 d4 43.R1g2 Qd5 44.Kg1 b6 45.cxb6 axb6 46.Qd1 c5 47.e6 Ra7 48.bxc5 bxc5 49.Rb2 Rxa2 50.Rxa2 Qxa2 51.Qe1 Be7 52.Rg2 Qd5 53.Qe5 Qxe5 54.fxe5 c4 55.Bf4 Nxe6 56.Bc1 c3 57.Rg6 d3 58.Rg2 0-1
2018.12.19 30th Carlos Torre Mem
2458867 GM Espinosa Veloz, E (2515) IM Obregon Rivero, J (2482) 1-0
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 d6 7.Nc3 Nf6 8.Be2 O-O 9.O-O Bd7 10.Qd2 Nxd4 11.Bxd4 Bc6 12.f3 a5 13.b3 Nd7 14.Bf2 Nc5 15.Rab1 Be5 16.Rfd1 f5 17.exf5 Rxf5 18.Be3 Qf8 19.Nd5 e6 20.Nc7 Rc8 21.Nb5 Bxb5 22.cxb5 Qf6 23.g3 d5 24.Rbc1 b6 25.f4 Bb2 26.Rc2 d4 27.Bxd4 Bxd4+ 28.Qxd4 Qxd4+ 29.Rxd4 Rd5 30.Rxd5 exd5 31.Rd2 Ne4 32.Rxd5 Rc1+ 33.Kg2 Rc2 34.Kf3 Nc5 35.Bc4 Kf8 36.Rxc5 1-0
2018.12.18 30th Carlos Torre Mem
2458856 IM Obregon Rivero, J (2482) GM Baryshpolets, A (2578) 1/2-1/2
1.e4 e6 2.d4 d5 3.Nd2 Be7 4.Ngf3 Nf6 5.e5 Nfd7 6.Bd3 c5 7.c3 Nc6 8.O-O g5 9.dxc5 Ndxe5 10.Bb5 Ng6 11.c4 a6 12.Ba4 O-O 13.cxd5 Qxd5 14.Bb3 Qd8 15.Ne4 g4 16.Nfd2 e5 17.Nc4 Qxd1 18.Rxd1 Be6 19.Bh6 Rfd8 20.Ncd6 Bxb3 21.axb3 Nd4 22.Be3 f5 23.Bxd4 fxe4 24.Be3 Bxd6 25.cxd6 Kf7 26.Bb6 Rd7 27.Bc7 Nf4 28.Re1 Ne6 29.Rxe4 Nxc7 30.dxc7 Rxc7 31.Rxg4 Rac8 32.g3 Rc1+ 33.Rxc1 Rxc1+ 34.Kg2 Rc2 35.Rc4 Rxb2 36.Rc7+ Kf6 37.Rxb7 e4 38.Rxh7 e3 39.Kf1 Rxf2+ 40.Ke1 Ke5 41.Rh4 a5 42.h3 Rh2 43.Rg4 Kf5 44.Rf4+ Ke5 45.h4 Rh3 46.Rg4 Kf5 47.Rf4+ Ke5 48.h5 Rxh5 49.Ke2 Rh2+ 50.Kf3 Rf2+ 51.Kxe3 Rb2 52.Re4+ 1/2-1/2
2018.12.16 30th Carlos Torre Mem
2461515 GM Vorontsov, P (2548) IM Obregon Rivero, J (2482) 1-0
1.e4 d5 2.exd5 Nf6 3.d4 Nxd5 4.Nf3 Bf5 5.Nh4 Bc8 6.c4 Nb6 7.Nf3 Bf5 8.Qb3 a5 9.c5 a4 10.Qb5+ Bd7 11.Qe2 Nd5 12.Nc3 c6 13.Ne5 Be6 14.Ne4 h6 15.f4 Qc7 16.g4 g6 17.Bh3 Qa5+ 18.Bd2 Qb5 19.Nd3 Kd8 20.f5 gxf5 21.gxf5 Bd7 22.Rg1 Qc4 23.Ne5 Qxe2+ 24.Kxe2 Be8 25.Rg3 Nd7 26.Rag1 N7f6 27.Nxf6 Nxf6 28.Nc4 Ra6 29.Nb6 h5 30.Ke1 Bd7 31.Bf1 Ra7 32.Bd3 h4 33.R3g2 a3 34.b3 h3 35.Rg3 Be8 36.Bf4 Rh4 37.Bb8 Ra6 38.Bxa6 bxa6 39.Be5 Nh7 40.Rg4 Rh5 41.Rf1 f6 42.Bg3 Bf7 43.d5 Bxd5 44.Nxd5 cxd5 45.c6 1-0
2018.04.01 LXIV Mexican Open 2018
2587198 CM Molina Mendoza, Omar (2210) IM Obregon Rivero, J (2507) 0-1
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 c5 6.O-O cxd4 7.Nxd4 Nc6 8.Nc3 Qb6 9.Nxc6 dxc6 10.Qb3 Be6 11.Na4 Qa5 12.Qc2 Rfd8 13.Bf4 Rd4 14.b3 Qh5 15.e3 Rd7 16.Rad1 Bf5 17.e4 Nxe4 18.Rxd7 Nxg3 19.Rxe7 Bxc2 20.fxg3 Bf6 21.Rxb7 Qe2 22.Bf3 Bd4+ 0-1
2018.03.30 LXIV Mexican Open 2018
2587163 GM Ortiz Suarez, I (2551) IM Obregon Rivero, J (2507) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 a6 6.Bxc6 Bxc6 7.d4 cxd4 8.Nxd4 Bd7 9.Nc3 e6 10.Qd3 Nf6 11.Bg5 Be7 12.Rad1 O-O 13.Nb3 Bc6 14.Bxf6 Bxf6 15.Qxd6 Qxd6 16.Rxd6 Be5 17.Rd3 Bb5 18.Rde3 Rfd8 19.g3 g5 20.a3 Bc4 21.Na5 Rac8 22.Nxb7 Rd2 23.Na5 Bb5 24.Rc1 Bd4 25.Rf3 g4 26.Rf4 Bxc3 27.bxc3 Be2 28.Nb3 Rd7 29.e5 Rxc3 30.Nd4 Bf3 31.h3 Rxa3 32.hxg4 Bb7 33.Kh2 Ra5 34.Re1 Rad5 35.Nb3 Rd1 36.Rxd1 Rxd1 37.f3 Re1 38.Nc5 Bc6 39.Nxa6 Rxe5 40.Nb4 Bb7 41.Kg1 Rc5 42.Kf2 Rc3 43.g5 Kg7 44.Nd3 Rxc2+ 45.Ke3 Rc3 46.Kd2 Rc7 47.Ne5 Bd5 48.Rf6 Ra7 49.Ke3 Ba2 50.f4 Bb1 51.g4 Bc2 52.Kd4 Rc7 53.Ke3 Bb1 54.Kf2 Bg6 55.f5 exf5 56.gxf5 Rc5 57.fxg6 Rxe5 58.gxf7 Kf8 1/2-1/2
2018.03.30 LXIV Mexican Open 2018
2587174 IM Obregon Rivero, J (2507) FM Diaz Rosas, J (2313) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.c4 O-O 5.O-O d5 6.d4 dxc4 7.Na3 Nc6 8.Nxc4 Be6 9.b3 Bd5 10.Bb2 a5 11.a4 Qc8 12.e3 Rd8 13.Qe2 b6 14.Nfd2 Bxg2 15.Kxg2 Qb7 16.Qf3 Rd5 17.Kg1 Rad8 18.Rac1 Qc8 19.Qg2 h5 20.h3 e6 21.Nb1 Qa8 22.Nc3 R5d7 23.Nb5 Nd5 24.Rfd1 Ncb4 25.Ne5 Bxe5 26.dxe5 Qb8 27.Qf3 Ne7 28.Ba3 Nf5 29.Rxd7 Rxd7 30.g4 Nh4 31.Qf6 Nd3 32.Qxh4 Nxc1 33.gxh5 Qd8 34.Qg4 Rd1+ 35.Kg2 Qd5+ 36.e4 Qd3 37.Bxc1 Rxc1 38.hxg6 Qf1+ 39.Kf3 Qd1+ 40.Ke3 Qxg4 41.gxf7+ Kxf7 42.hxg4 c6 43.Nd6+ Kf8 44.Kd3 Rf1 45.Nc4 Rxf2 46.Nxb6 Rf3+ 47.Kc4 Ke7 48.Nc8+ Kd7 49.Nd6 Rg3 50.Nb7 Rxg4 51.Kd4 Rg3 52.Nxa5 Kc7 53.Kc5 Rc3+ 54.Kd4 Rh3 55.Kc5 Rc3+ 1/2-1/2
2018.03.29 LXIV Mexican Open 2018
2587152 IM Blanco Fernandez, A (2278) IM Obregon Rivero, J (2507) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.dxc5 dxc5 8.Qxd8 Rxd8 9.Bxc5 Nc6 10.Be3 Nb4 11.Rc1 Be6 12.Kf2 Nd3+ 13.Bxd3 Rxd3 14.Nge2 Bxc4 15.Rhd1 Nd7 16.Rxd3 Bxd3 17.Rd1 Ne5 18.Nf4 Ba6 19.Ncd5 Nc4 20.Nxe7+ Kf8 21.Bc5 Nxb2 22.Nc8+ Ke8 23.Nd6+ Kf8 24.Nc8+ Ke8 25.Nd6+ Kf8 26.Rd5 1/2-1/2
2018.03.29 LXIV Mexican Open 2018
2587159 IM Obregon Rivero, J (2507) FM Gonzalez Arroyo, L (2236) 1-0
1.Nf3 d6 2.d4 Bg4 3.e4 Nf6 4.h3 Bxf3 5.Qxf3 e5 6.dxe5 dxe5 7.Qb3 Bc5 8.Qxb7 O-O 9.Be2 Nbd7 10.Bf3 Rb8 11.Qa6 Bd4 12.Nc3 Nc5 13.Qc4 Ne8 14.Nb5 Ne6 15.Nxd4 Nxd4 16.Qd3 Qf6 17.Bd1 Qg6 18.O-O Nf6 19.c3 Ne6 20.Bc2 Nh5 21.Qf3 Nhf4 22.h4 Rb6 23.g3 Nh5 24.Kh2 Nf6 25.Qf5 Qxf5 26.exf5 Nc5 27.Rd1 h6 28.f3 Rfb8 29.b4 Ncd7 30.g4 Rc6 31.Ba4 Rxc3 32.Bxd7 Rxf3 33.g5 Nxd7 34.Rxd7 Rxb4 35.g6 fxg6 36.fxg6 Rxh4+ 37.Kg2 Rf8 38.Ba3 Re8 39.Rg1 Ra4 40.Bc5 Rxa2+ 41.Kf3 a5 42.Rxc7 1-0
2018.03.28 LXIV Mexican Open 2018
2587144 IM Obregon Rivero, J (2507) FM Perez Avendano, P (2154) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 Bh5 7.g4 Bg6 8.Nxe5 Bd6 9.Nxg6 hxg6 10.Qf3 Qh4 11.Kg2 O-O-O 12.d4 f6 13.Rh1 c5 14.dxc5 Bxc5 15.Bf4 Bd6 16.Nc3 Ne7 17.Bxd6 Rxd6 18.Rad1 Rb6 19.b3 Re6 20.Nd5 Nc6 21.Nf4 Ne5 22.Qg3 Qxg3+ 23.Kxg3 Rc6 24.c4 g5 25.Nd5 Re6 26.h4 gxh4+ 27.Rxh4 Rxh4 28.Kxh4 Ng6+ 29.Kh5 Nf8 30.f3 c6 31.Ne3 Re7 32.Kh4 g6 33.c5 Ne6 34.Rd6 g5+ 35.Kg3 Nxc5 36.Rxf6 Rd7 37.Rf5 Ne6 38.Re5 Nf4 39.Rxg5 Ne2+ 40.Kh4 Rd3 41.Rg8+ Kc7 42.Rg7+ Kb6 43.Nc4+ 1-0
2018.03.27 LXIV Mexican Open 2018
2587136 Quiroga Garza, Juan Manuel (1988) IM Obregon Rivero, J (2507) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.Bf3 a5 11.Nd5 Bxd5 12.exd5 Nb4 13.a3 Na6 14.c4 Nd7 15.c5 Ndxc5 16.Nxc5 Nxc5 17.b4 Nd7 18.bxa5 Bg5 19.Bxg5 Qxg5 20.Rb1 Nc5 21.Rb6 e4 22.Be2 Qe5 23.a6 bxa6 24.Qa1 Qxa1 25.Rxa1 Rfd8 26.Rab1 Kf8 27.Rc6 Ke7 28.Kf1 Rdc8 29.Rbb6 Rxc6 30.Rxc6 Rb8 31.Bxa6 Rb3 32.Bc4 Rxa3 33.Bb5 Ra7 34.Ke2 Rb7 35.Ba6 Rb2+ 36.Ke3 f5 37.Bc8 f4+ 38.Kxf4 Rxf2+ 39.Ke3 Rxg2 40.h3 Rg3+ 41.Ke2 Rd3 42.Bf5 Rxd5 0-1
2017.12.15 29th Carlos Torre Mem
2647088 IM Obregon Rivero, J (2515) GM Cordova, E (2587) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 e6 6.Bd3 Nf6 7.O-O Be7 8.Be3 Qc7 9.f4 d6 10.Nc3 Bd7 11.Qf3 Rc8 12.Rae1 Qb8 13.a3 h5 14.h3 h4 15.Nd2 Kf8 16.Qd1 Nh5 17.Rf2 Kg8 18.Bc4 Bf6 19.Ba2 b5 20.e5 dxe5 21.Nde4 exf4 22.Nxf6+ gxf6 23.Qg4+ Kf8 24.Bc5+ Ne7 25.Bb4 a5 26.Bxa5 Ng6 27.Bb4+ Kg7 28.Qd1 Bc6 29.Ne4 Bxe4 30.Rxe4 Rcd8 31.Qc1 Rd7 32.c3 Rhd8 33.Bb3 Qb6 34.c4 Ng3 35.c5 Qc6 36.Re1 e5 37.Ba5 Rc8 38.Bb4 Ne4 39.Rfe2 Ng5 40.Rd1 f3 41.Rxd7 fxe2 42.Rd5 0-1
2017.04.16 LXIII Mexican Open 2017
2767429 FM Garcia Guerrero, I (2332) IM Obregon Rivero, J (2529) 0-1
1.d4 g6 2.e4 Bg7 3.h4 d5 4.e5 h5 5.Nh3 c5 6.Ng5 cxd4 7.e6 Nh6 8.Bd3 Qb6 9.exf7+ Nxf7 10.Qf3 Ne5 11.Qxd5 Nxd3+ 12.cxd3 Qf6 13.O-O Qf5 14.Qb3 Na6 15.Nd2 Nc5 16.Qc4 b6 17.b4 Ba6 18.b5 Bb7 19.Nde4 Rc8 20.Re1 Nxe4 21.Nxe4 Bxe4 22.Qb4 Rc2 23.Bd2 O-O 0-1
2017.04.15 LXIII Mexican Open 2017
2767409 GM Cordova, E (2645) IM Obregon Rivero, J (2529) 1-0
1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.c4 Nc6 7.Nc3 Bg4 8.h3 Bxf3 9.Bxf3 Nd7 10.e3 e5 11.d5 Ne7 12.e4 f5 13.Bd2 Nf6 14.Rc1 Qd7 15.Kg2 Rf7 16.b4 a5 17.a3 h6 18.Qc2 g5 19.Qd3 f4 20.g4 Ng6 21.Rg1 Nh4+ 22.Kf1 axb4 23.axb4 h5 24.Bd1 hxg4 25.Bxg4 Nxg4 26.Rxg4 Bf6 27.c5 Ra3 28.Ke2 Rh7 29.f3 b6 30.c6 Qc8 31.Rh1 Kf7 32.Bc1 Ra1 33.Kd1 Ng6 34.Kc2 Qh8 35.Qf1 Qa8 36.Kb3 Rh8 37.Rgg1 Nh4 38.Qe2 Qc8 39.Rf1 Ra8 40.Bb2 Ng6 41.Qg2 Rh4 42.Ra1 Rxa1 43.Bxa1 Qa6 44.Bb2 Bd8 45.Bc1 Qc8 46.Bd2 Rh8 47.Be1 Qa6 48.Qa2 Qc8 49.Qa7 Be7 50.Bf2 Kf6 51.Qb7 Qxb7 52.cxb7 Rb8 53.h4 Rxb7 54.hxg5+ Kg7 55.Nb5 Bxg5 56.Rc1 Bd8 57.Ra1 Bh4 58.Bg1 Be7 59.Kc4 Kf7 60.Kd3 Bd8 61.Ra8 Bh4 62.Ke2 Ne7 63.Na7 Ng6 64.Nc6 Nf8 65.Bf2 Bf6 66.Kd3 Nd7 67.Kc4 b5+ 68.Kd3 Kg7 69.Rc8 Nb6 70.Bxb6 cxb6 71.Ra8 Kg6 72.Ra7 Rxa7 73.Nxa7 Kh5 74.Nc8 Kg6 75.Kc3 Kh5 76.Nxd6 Kh4 77.Kd3 Kh3 78.Nxb5 1-0
2017.04.15 LXIII Mexican Open 2017
2767418 IM Obregon Rivero, J (2529) GM Hernandez Guerrero, G (2499) 1/2-1/2
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Bd3 Bb7 6.Nf3 O-O 7.O-O c5 8.a3 cxd4 9.axb4 dxc3 10.bxc3 d6 11.Nd4 Nbd7 1/2-1/2
2017.04.14 LXIII Mexican Open 2017
2767393 GM Gonzalez Zamora, J (2517) IM Obregon Rivero, J (2529) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.d4 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O Nbd7 9.Qe2 O-O 10.e4 Bg6 11.Bd3 Qe7 12.e5 Nd5 13.Bxg6 fxg6 14.Bd2 a5 15.Nxd5 cxd5 16.Rac1 1/2-1/2
2017.04.14 LXIII Mexican Open 2017
2767403 IM Obregon Rivero, J (2529) IM Fernandez Cardoso, A (2445) 1-0
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 Bf5 1-0
2017.04.13 LXIII Mexican Open 2017
2767380 Tello Chavez, Isaac Valent (2286) IM Obregon Rivero, J (2529) 0-1
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.e3 d6 6.Nge2 c6 7.O-O Be6 8.b3 Qc8 9.Re1 Bh3 10.d4 e5 11.dxe5 dxe5 12.e4 Bxg2 13.Kxg2 Rd8 14.Qc2 Nbd7 15.Ba3 Bf8 16.Bxf8 Nxf8 17.Rad1 Ne6 18.Na4 Rxd1 19.Qxd1 b5 20.Nb2 Qa6 21.Qb1 Rd8 22.cxb5 cxb5 23.Rd1 Rc8 24.f3 Qb6 25.Rd3 Qb7 26.Qd1 Kg7 27.b4 Nxe4 28.fxe4 Qxe4+ 29.Kf2 Ng5 30.Ng1 Rc6 31.Qe2 Qh1 32.Qxe5+ Rf6+ 33.Nf3 Nxf3 34.Qxf6+ Kxf6 35.Rxf3+ Kg7 36.Nd3 Qxh2+ 37.Ke3 Qxa2 38.Rf4 h5 39.Rf3 a5 40.bxa5 Qxa5 41.Rf4 Qb6+ 42.Kf3 Qc6+ 43.Ke3 Qg2 44.Rf3 g5 45.Ne1 Qg1+ 46.Ke2 Qh2+ 47.Kd3 b4 48.Kd4 0-1
2017.04.13 LXIII Mexican Open 2017
2767387 IM Obregon Rivero, J (2529) FM Diaz Hernandez, H (2331) 1-0
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O Bg4 6.h3 h5 7.d3 Qf6 8.Be3 Bxf3 9.Qxf3 Qxf3 10.gxf3 Bd6 11.Nd2 Ne7 12.Rfb1 f6 13.b4 g5 14.a4 Ng6 15.Kf1 Kd7 16.a5 Nf4 17.Bxf4 gxf4 18.c4 Rhg8 19.c5 Be7 20.d4 Ke6 21.Nb3 Rad8 22.Rd1 Rd7 23.Ra2 Rgd8 24.Ke2 Bf8 25.Rad2 Bg7 26.d5+ Ke7 27.b5 axb5 28.dxc6 Rxd2+ 29.Rxd2 bxc6 30.Rxd8 Kxd8 31.a6 Kc8 32.Na5 Kb8 33.Nxc6+ Ka8 34.Nd8 c6 35.Nxc6 Bf8 36.Nd8 Bxc5 37.Ne6 Bb6 38.Ng7 h4 39.Nf5 b4 40.Nxh4 Bxf2 41.Nf5 Ka7 42.Kxf2 b3 43.Nd6 Kxa6 44.Nc4 Kb5 45.Nd2 b2 46.Ke2 Kb4 47.Kd3 f5 48.exf5 e4+ 49.fxe4 f3 50.Kc2 Ka3 51.Nxf3 1-0
2017.04.12 LXIII Mexican Open 2017
2767374 IM Obregon Rivero, J (2529) Bustamante Orta, Jorge (2160) 1-0
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6 9.exf6 Nxf6 10.Nf3 Bd6 11.O-O O-O 12.Bg5 Bd7 13.Bh4 Qe8 14.Bg3 Bxg3 15.Nxg3 Qb8 16.Re1 Qf4 17.Bb5 Ne4 18.Qc1 a6 19.Bxc6 Bxc6 20.Qe3 h6 21.Rac1 Rac8 22.Nxe4 dxe4 23.Qxf4 Rxf4 24.Ne5 Rd8 25.g3 Rf3 26.Nxc6 bxc6 27.Rxe4 Rd6 28.Kf1 Rf5 29.Ke2 Rb5 30.b3 a5 31.Rc4 g5 32.Re5 Kf7 33.Ke3 Rdd5 34.Rxd5 cxd5 35.Rc5 Rxc5 36.dxc5 e5 37.f4 1-0
2016.10.31 Jugando Open 2016
2828391 GM Alvarez Pedraza, A (2472) IM Obregon Rivero, J (2552) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O c5 5.d4 cxd4 6.Nxd4 O-O 7.Nb3 Nc6 8.c4 d6 9.Nc3 Qb6 10.Nb5 Rb8 11.a4 a6 12.a5 Qd8 13.N5d4 Qc7 14.c5 d5 15.Nc2 Rd8 16.Bf4 e5 17.Bg5 h6 18.Bxf6 Bxf6 19.Qd2 Kg7 20.f4 exf4 21.Rxf4 Bg5 22.Qc3+ Kg8 23.Rf2 d4 24.Nbxd4 Nxd4 25.Nxd4 Qe5 26.Nc2 Qxc3 27.bxc3 Rd2 28.e3 Rd3 29.h4 Be7 30.Nb4 Rxe3 31.Nd5 Bxc5 32.Nxe3 Bxe3 33.Re1 Bxf2+ 34.Kxf2 Bd7 35.Re7 Bc6 36.Bxc6 bxc6 37.Ra7 Rb3 38.Rxa6 Rxc3 39.Rb6 Ra3 40.Rxc6 Rxa5 41.Rc3 Kg7 42.Rb3 Kf6 43.Kf3 h5 44.Rb6+ Kf5 45.Rb3 Ke6 46.Rb6+ Ke5 47.Rb3 Rd5 48.Ra3 Kd4 49.Ra4+ Ke5 50.Ra3 Ke6 51.Ra6+ Ke7 52.Ra3 Rf5+ 53.Kg2 Kf6 54.Ra6+ Kg7 55.Ra8 Rb5 56.Ra3 Kh6 57.Kf3 Rf5+ 58.Kg2 f6 59.Ra6 g5 1/2-1/2
2016.10.31 Jugando Open 2016
2828398 IM Obregon Rivero, J (2552) GM Tiviakov, S (2590) 0-1
1.Nf3 Nf6 2.g3 b6 3.Bg2 Bb7 4.O-O e6 5.c4 Be7 6.b3 O-O 7.Bb2 d5 8.e3 c5 9.Nc3 dxc4 10.bxc4 Nc6 11.Qe2 Qc7 12.Rad1 a6 13.a4 Rfd8 14.Ne1 Rab8 15.f4 Na7 16.g4 b5 17.g5 Ne8 18.f5 Bxg2 19.Nxg2 exf5 20.Nd5 Qd7 21.Rxf5 bxc4 22.Bc3 Nc6 23.Rdf1 Nd6 24.R5f2 Bf8 25.Rf4 Re8 26.Qh5 Re4 27.Nh4 Rxf4 28.Nxf4 Ne7 29.Nf3 Ne4 30.Ne5 Qe8 31.Nxc4 Ng6 32.Nxg6 hxg6 33.Qg4 Rd8 34.a5 Rd5 35.h4 Qe7 36.Rf4 Nxc3 37.dxc3 Rd3 38.Qf3 Qd7 39.Ne5 Rd1+ 40.Kg2 Qd2+ 41.Qf2 Bd6 42.Nc4 Qd5+ 43.Qf3 Bxf4 44.Qxd5 Rxd5 45.exf4 Rd3 46.Ne5 Rxc3 47.Nd7 c4 48.Nb8 Ra3 49.Nxa6 c3 0-1
2016.10.30 Jugando Open 2016
2828379 IM Della Morte, P (2337) IM Obregon Rivero, J (2552) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 d6 7.Nc3 Nf6 8.Be2 O-O 9.O-O Bd7 10.Qd2 Nxd4 11.Bxd4 Bc6 12.Bd3 a5 13.b3 Nd7 14.Bxg7 Kxg7 15.Rae1 Re8 16.Re3 Nf6 17.Kh1 Qb6 18.Bc2 Qc5 19.a4 e6 20.f4 Rad8 21.Rg3 d5 22.e5 Ne4 23.Nxe4 dxe4 24.Qe1 Rd4 25.Rh3 h5 26.Qg3 Rd2 27.Bd1 Red8 28.Bxh5 R8d3 29.Qg5 Rxh3 30.Qf6+ Kf8 31.Qh8+ Ke7 32.Qf6+ Ke8 33.Bxg6 Qe7 0-1
2016.10.30 Jugando Open 2016
2828385 IM Obregon Rivero, J (2552) FM Leon Valdes, J (2311) 1/2-1/2
1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.c3 c5 8.Ne5 a6 9.Qa4+ Nd7 10.Be3 cxd4 11.Bxd4 f6 12.Nxd7 Qxd7 13.Qb3 Qc6 14.Be2 Qxg2 15.O-O-O Kf7 16.c4 Qg5+ 17.f4 Qxf4+ 18.Be3 Qc7 19.Rhf1 Bc5 20.Bf4 e5 21.Bh5+ g6 22.Bg5 f5 23.Qh3 Kg7 24.Qh4 Qb6 25.Rf3 h6 26.Bd2 Qf6 27.Qe1 gxh5 28.Bc3 Bd4 29.Rg3+ Kf7 30.Qe2 Bxc3 31.Qxh5+ Ke7 32.Rg6 Bd4 33.Rxf6 Be3+ 34.Kc2 Kxf6 35.Rd6+ Be6 36.Rxe6+ Kxe6 37.Qg6+ Ke7 38.Qg7+ 1/2-1/2
2016.10.28 Jugando Open 2016
2828358 IM Obregon Rivero, J (2552) IM Dominguez Aguilar, G (2288) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nbd7 7.Nc3 e5 8.Qc2 c6 9.Rd1 Qe7 10.b3 Re8 11.dxe5 dxe5 12.Ng5 Nf8 13.a4 Bf5 14.e4 Bg4 15.f3 Bd7 16.Ba3 Qd8 17.Bd6 Qc8 18.f4 Bg4 19.Rf1 exf4 20.e5 Nh5 21.gxf4 h6 22.Nge4 Qf5 23.Qd3 Qc8 24.Ba3 Qd8 25.Nd6 Ne6 26.Qe3 Nexf4 27.Nxe8 Nxg2 28.Kxg2 Qxe8 29.Bd6 g5 30.Kh1 f5 31.Rae1 Qe6 32.Ne2 f4 33.Qd3 Bf5 34.Qf3 Bg4 35.Qf2 Rd8 36.Nd4 Qg6 37.Qc2 Qe8 38.Nf5 Bh3 39.Ne7+ Kh8 40.Rf3 Bg4 41.Rf2 Rd7 42.Rg1 Be6 43.Nf5 Qf7 44.Nxg7 Nxg7 45.Qe2 b5 46.axb5 cxb5 47.Rc1 bxc4 48.bxc4 Nf5 49.c5 Bd5+ 50.Kg1 Qe6 51.Qg4 Bc6 52.Rd2 Kg7 53.Rb1 Kg6 54.h4 Rb7 55.Rxb7 Bxb7 56.h5+ Kg7 57.Qe2 Ne3 58.Rb2 Bc6 59.Ra2 Qd5 60.Kf2 Qh1 61.Rxa7+ Kh8 62.Qd3 Be4 63.Qb5 Qf3+ 64.Ke1 Qd1+ 0-1
2016.03.27 LXII Mexican Open 2016
2930768 IM Obregon Rivero, J (2539) IM Ruiz C, J (2374) 1/2-1/2
1.e4 e6 2.d3 d5 3.Nd2 c5 4.Ngf3 Nc6 5.g3 Bd6 6.Bg2 Nge7 7.O-O O-O 8.Re1 Qc7 9.Nh4 Bd7 10.f4 f6 11.Nhf3 b5 12.c3 a5 13.Kh1 b4 14.Qe2 Qb6 15.c4 dxe4 16.Nxe4 Nf5 17.Nxd6 Nxd6 18.Be3 Nf5 19.Bg1 Rae8 20.Rad1 e5 1/2-1/2
2016.03.26 LXII Mexican Open 2016
2930752 IM Obregon Rivero, J (2539) IM Miranda Mesa, E (2433) 1-0
1.Nf3 d5 2.d4 Nf6 3.c4 c6 4.Qc2 dxc4 5.Qxc4 Bg4 6.Nbd2 Nbd7 7.g3 e6 8.Bg2 Be7 9.O-O O-O 10.b4 a5 11.b5 Nb6 12.Qd3 c5 13.Ba3 cxd4 14.Bxe7 Qxe7 15.Qxd4 Nbd5 16.e4 Bxf3 17.Nxf3 Nb4 18.e5 Nfd5 19.Rfc1 Rfc8 20.Qd2 Nb6 21.Bf1 Rxc1 22.Rxc1 Rd8 23.Qe3 Nxa2 24.Ra1 Nd5 25.Qa7 Nac3 26.Qxa5 Rc8 27.g4 Qd7 28.Qa7 Qc6 29.b6 Qxb6 30.Ba6 Rd8 31.Bxb7 1-0
2016.03.26 LXII Mexican Open 2016
2930760 IM Fernandez Cardoso, A (2465) IM Obregon Rivero, J (2539) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Bd7 14.d5 Rfc8 15.Bd3 Nc4 16.Nf1 Qb7 17.b3 Nb6 18.Ng3 a5 19.Qe2 b4 20.Be3 Rc3 21.Nd2 1/2-1/2
2016.03.25 LXII Mexican Open 2016
2930737 IM Obregon Rivero, J (2539) IM Quesada Perez, Ya (2537) 1/2-1/2
1.Nf3 d5 2.d4 e6 3.c4 c6 4.Qc2 Nf6 5.g3 Be7 6.Bg2 O-O 7.O-O b6 8.Nbd2 Bb7 9.e4 Na6 10.e5 Nd7 11.a3 c5 12.dxc5 bxc5 13.Re1 Nb6 14.h4 h6 15.b3 Nc7 16.b4 Rc8 17.bxc5 Bxc5 18.cxd5 Ncxd5 19.Qe4 Qd7 20.Nb3 Qa4 21.Nfd4 Bxd4 22.Nxd4 Rc4 23.Bb2 Ba8 24.Qd3 Ne7 25.Nf3 Qc2 26.Qxc2 Rxc2 27.Bd4 Nf5 28.Bxb6 axb6 29.Reb1 Rc3 30.Nd2 Bxg2 31.Kxg2 Nxg3 32.Rxb6 Nf5 33.h5 Rd8 34.Ra2 Nh4+ 35.Kf1 Rd5 36.f4 Nf5 37.a4 Rd4 38.Rb3 Rxf4+ 39.Kg2 Nh4+ 40.Kh1 Rc1+ 41.Kh2 Nf5 42.Nf3 Rfc4 43.Rba3 Rc6 44.a5 Ra6 45.Rb3 Rc5 46.Rb8+ Kh7 47.Rd2 Rd5 48.Rc2 Ne7 49.Rc7 Nc6 50.Rb6 Rxb6 51.axb6 Nxe5 52.b7 Nxf3+ 53.Kg3 Rb5 54.Kxf3 f5 55.Re7 Rb4 56.Kg3 f4+ 57.Kf3 e5 58.Rxe5 Rxb7 59.Kxf4 Rb4+ 60.Kg3 Kg8 61.Rf5 Rb6 62.Kg4 Rf6 63.Ra5 Rf1 64.Ra8+ Kf7 65.Ra7+ Kf6 66.Ra6+ Kf7 67.Ra7+ Ke6 68.Ra6+ Ke5 69.Ra5+ Kd6 70.Ra6+ Kc7 71.Ra7+ Kb6 72.Rd7 Kc6 73.Ra7 Rg1+ 74.Kh4 Kb6 75.Rd7 Rg5 76.Rd1 Kc6 77.Rd2 Rd5 78.Ra2 Rd4+ 79.Kg3 Rd7 80.Kg4 1/2-1/2
2016.03.25 LXII Mexican Open 2016
2930744 GM Ortiz Suarez, I (2592) IM Obregon Rivero, J (2539) 0-1
1.Nf3 c5 2.c4 g6 3.g3 Bg7 4.Bg2 Nc6 5.Nc3 d6 6.O-O e6 7.a3 Nge7 8.b4 O-O 9.Rb1 b6 10.Qa4 Bb7 11.Bb2 Qd7 12.e3 Rfd8 13.Rfc1 h6 14.d3 Kh7 15.Ne1 f5 16.Nd1 e5 17.Nc3 Rac8 18.Qb3 Rf8 19.Nd5 Nd8 20.Bc3 Ne6 21.a4 cxb4 22.Bxb4 Nc5 23.Qa3 Nxd5 24.cxd5 Nxa4 25.Bxd6 Nc3 26.Rxc3 Rxc3 27.Qxc3 Qxd6 28.e4 f4 29.Bh3 fxg3 30.hxg3 Rf7 31.Rc1 a5 32.Be6 Re7 33.Qc4 Bf6 34.Qb5 Rg7 35.Nf3 Bd8 36.Kg2 Re7 37.Nd2 Qa3 38.Rc2 Bc7 39.Nf3 Qb4 40.Qxb4 axb4 41.Ra2 Kg7 42.Nd2 Bd6 43.Bh3 Bc5 44.Nc4 Rf7 45.f3 Bd4 46.d6 Bc6 47.Be6 b3 48.Ra3 b2 49.Rb3 Ra7 50.Nxb2 Ra2 51.Rxb6 Rxb2+ 0-1
2016.03.24 LXII Mexican Open 2016
2930722 IM Obregon Rivero, J (2539) FM Rodriguez, Pe (2296) 1-0
1.Nf3 Nf6 2.g3 d6 3.d4 Nbd7 4.Bg2 e5 5.c4 Be7 6.O-O O-O 7.Nc3 Re8 8.Qc2 c6 9.Rd1 Qc7 10.h3 Bf8 11.e4 a6 12.Be3 b5 13.a3 Nb6 14.cxb5 cxb5 15.Rac1 Qb8 16.Qb1 h6 17.b3 Bd7 18.Qb2 Bc6 19.Nd2 Nbd7 20.d5 Bb7 21.b4 Be7 22.a4 Bc8 23.axb5 axb5 24.Bf1 Ba6 25.Ra1 Rc8 26.Nxb5 Nb6 27.Nxd6 Bxd6 28.Bxa6 Rc7 29.Rdb1 Nbd7 30.Kg2 Ne8 31.Bd3 Rxa1 32.Qxa1 Rb7 33.Qa4 Kh7 34.Ba6 Rc7 35.Bb5 Nef6 36.Bc6 1-0
2016.03.24 LXII Mexican Open 2016
2930730 FM Figueredo Losada, L (2362) IM Obregon Rivero, J (2539) 0-1
1.d4 d6 2.e4 Nf6 3.Nc3 e5 4.Nf3 Nbd7 5.Bc4 Be7 6.dxe5 dxe5 7.O-O O-O 8.h3 c6 9.a4 Qc7 10.Re1 a5 11.Nh4 Nc5 12.Nf5 Be6 13.Bf1 Rfe8 14.Qf3 Bf8 15.Nh6+ Kh8 16.Bg5 Ng8 17.Nf5 f6 18.Be3 g6 19.Ng3 Qe7 20.Rad1 Bh6 21.Rd2 Red8 22.Red1 Rxd2 23.Rxd2 Kg7 24.Nge2 Bf7 25.Bxh6+ Nxh6 26.Qe3 Ne6 27.g3 Rd8 28.Rxd8 Qxd8 29.Qa7 Qc7 30.h4 g5 31.hxg5 fxg5 32.Bh3 g4 33.Bg2 Bg6 34.Nc1 Nf7 35.Nd3 Kf6 36.Nc5 Nfd8 37.Nxe6 Nxe6 38.Bf1 Be8 39.Bd3 b6 40.Qa8 Qd8 41.Qa7 Bg6 42.Qb7 Qc7 43.Qa8 Kg7 44.Bc4 Ng5 45.Qg8+ Kh6 46.Qf8+ Kh5 47.Bd3 Qf7 48.Qxf7 Nxf7 49.Kf1 Nd6 50.Ke2 Kg5 51.Ke3 Bf7 52.b3 Kf6 53.Nb1 Be6 54.Nc3 Ke7 55.Be2 Ne8 56.Nb1 Nc7 57.Kd3 Kd6 58.Kc3 Kc5 59.Nd2 b5 60.Nf1 Ne8 61.Ne3 Nf6 62.f3 h5 63.axb5 cxb5 64.Kd3 a4 65.bxa4 bxa4 66.Kc3 a3 67.Bd1 h4 68.gxh4 g3 69.Be2 Bh3 70.Bd1 a2 0-1
2016.03.23 LXII Mexican Open 2016
2930716 FM Rocha, Max (2170) IM Obregon Rivero, J (2539) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Bg7 7.Be3 O-O 8.Be2 d6 9.O-O Bd7 10.f3 Nxd4 11.Bxd4 a5 12.Rc1 Bc6 13.Qd2 Nd7 14.Be3 Nc5 15.Rfd1 a4 16.Kh1 Qb6 17.Rb1 Rfc8 18.Rdc1 Qd8 19.Nd5 Be5 20.Bg5 f6 21.Bh4 g5 22.Bf2 e6 23.Nb4 Qa5 24.Rd1 Bxe4 25.Ra1 Bf5 26.Bd4 Bxd4 27.Qxd4 0-1
2016.03.22 LXII Mexican Open 2016
2930710 IM Obregon Rivero, J (2539) Lane, S (2026) 1-0
1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.O-O Nc6 7.Nc3 a6 8.Re1 Na5 9.b3 c5 10.Bb2 Rb8 11.dxc5 dxc5 12.Na4 Qxd1 13.Rexd1 Ne4 14.Bxg7 Kxg7 15.Nb6 Nc3 16.Rd3 Nxe2+ 17.Kf1 Nd4 18.Nxd4 cxd4 19.Rxd4 Nc6 20.Bxc6 bxc6 21.c5 e5 22.Rd6 Bh3+ 23.Ke1 Rfe8 24.Rxc6 e4 25.Nd5 a5 26.Ra6 Red8 27.Ne3 Rb5 28.Rc1 Rc8 29.c6 Be6 30.Rc3 h6 31.Ra7 g5 32.g4 Kf6 33.Kd2 Kg7 34.Rb7 Re5 35.c7 h5 36.h3 hxg4 37.hxg4 Kf6 38.Nc4 Bxc4 39.Rxc4 Ke6 40.Ke3 f5 41.Rb8 Kd7 42.Kd4 Re7 43.Rxc8 Kxc8 44.gxf5 g4 45.Ke3 Re5 46.Kf4 e3 47.fxe3 1-0
2015.11.16 Marcel Sisniega Mem 2015
2969292 FM Garcia Guerrero, I (2261) IM Obregon Rivero, J (2546) 0-1
1.e4 c5 2.Nc3 e6 3.g3 Nc6 4.Bg2 Nf6 5.Nge2 Be7 6.O-O d6 7.d4 cxd4 8.Nxd4 Bd7 9.Be3 O-O 10.Qe2 a6 11.Rfd1 Qc7 12.a4 Ne5 13.h3 Rfc8 14.Kh2 Rab8 15.f4 Nc4 16.Bc1 b5 17.axb5 axb5 18.e5 Ne8 19.exd6 Bxd6 20.Ne4 Bf8 21.Ng5 Nf6 22.Ndf3 h6 23.Nxf7 Kxf7 24.b3 Nd6 25.Ne5+ Kg8 26.Nxd7 Qxd7 27.f5 e5 0-1
2015.11.15 Marcel Sisniega Mem 2015
2969278 IM Obregon Rivero, J (2546) IM Sanchez Enriquez, O (2343) 1-0
1.c4 e6 2.Nf3 Nf6 3.Nc3 d5 4.cxd5 exd5 5.d4 Be7 6.Bg5 c6 7.e3 Bf5 8.Bd3 Bxd3 9.Qxd3 Nbd7 10.O-O O-O 11.Bxf6 Nxf6 12.Ne5 Re8 13.a3 Bd6 14.f4 Nd7 15.e4 dxe4 16.Qc4 Qe7 17.Nxe4 Nb6 18.Qb3 Bxe5 19.fxe5 Qe6 20.Qf3 Re7 21.Rae1 Rd8 22.Nd6 Red7 23.Qg3 Nd5 24.Rf3 f6 25.Ne4 Rf7 26.exf6 Re8 27.Rff1 1-0
2015.11.15 Marcel Sisniega Mem 2015
2969283 IM Obregon Rivero, J (2546) IM Quesada Perez, Ya (2504) 1-0
1.Nf3 d5 2.c4 dxc4 3.Na3 a6 4.g3 b5 5.Bg2 Bb7 6.b3 cxb3 7.Qxb3 e6 8.d4 Nf6 9.O-O Nbd7 10.Rd1 Bd5 11.Qb2 c5 12.Nc2 Qb6 13.a4 bxa4 14.Ne3 Qxb2 15.Bxb2 Bb3 16.Rdc1 Rb8 17.Nd2 Nd5 18.Nec4 f5 19.Nxb3 Rxb3 20.Rxa4 N7b6 21.Nxb6 Nxb6 22.Ra2 c4 23.Rc2 Bd6 24.Rxa6 Ke7 25.e4 Rc8 26.exf5 exf5 27.d5 g6 28.h4 Bc5 29.Kh2 Kd6 30.Bf1 c3 31.Bxc3 Bxf2 32.Bb4+ Kxd5 33.Ra5+ Ke6 34.Rxc8 Rxb4 35.Rc6+ Ke7 36.Ra2 Bd4 37.Bg2 Nd7 38.Rc7 Kd6 39.Rc6+ Ke7 40.Rc7 Kd6 41.Rb7 Rxb7 42.Bxb7 Be5 43.Ra6+ Ke7 44.Bd5 Nf6 45.Re6+ Kd7 46.Kg2 Ng4 47.Ba2 Bd6 48.Re1 Nf6 49.Be6+ Kd8 50.Kf3 Ke7 51.Bxf5+ Kf7 52.Be6+ Kg7 53.g4 h6 54.Ra1 Be7 55.Ra7 Kf8 56.Ra8+ Kg7 57.g5 hxg5 58.hxg5 Nh5 59.Ra7 Kf8 60.Kg4 Bd6 61.Rf7+ Ke8 62.Rf3 Ke7 63.Ba2 1-0
2015.11.14 Marcel Sisniega Mem 2015
2969263 IM Obregon Rivero, J (2546) WGM Linares Napoles, O (2266) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.Qe2 d6 7.O-O Qc7 8.c4 g6 9.b3 Bg7 10.Bb2 O-O 11.Nd2 b6 12.Rac1 Bb7 13.b4 Nbd7 14.N2b3 Rac8 15.Nf3 Qb8 16.Rfe1 Rfe8 17.h3 Qa8 18.a4 d5 19.cxd5 exd5 20.Rxc8 Qxc8 21.Rc1 Qb8 22.e5 Ne4 23.Bxa6 Bxa6 24.Qxa6 Bxe5 25.Nbd4 Bf4 26.Re1 Qd6 27.Qb5 Rc8 28.a5 bxa5 29.bxa5 Rb8 30.Qe2 Qb4 31.a6 Qxb2 32.a7 Qxe2 33.axb8=Q+ Bxb8 34.Rxe2 Ba7 35.Nc6 Bc5 36.Nce5 Nb6 37.Nd3 Bd6 38.Rb2 Bc7 39.Rb5 Kg7 40.Ra5 Nf6 41.Ra7 Ne8 42.Rb7 Nc4 43.Nb4 Ncd6 44.Ra7 Nb5 45.Ra1 Nf6 46.Kf1 h6 47.Rd1 Nc3 48.Rd3 Nce4 49.Nxd5 Nxd5 50.Rxd5 Nf6 51.Rb5 Ne4 52.Rb7 Bd6 53.Ke2 Nf6 54.Nd4 Ne4 55.Nc6 Nc5 56.Rb6 Bc7 57.Rb4 Ne6 58.Nd4 Nc5 59.Rb5 Bd6 60.Ke3 Bf8 61.Rb6 Be7 62.f4 Bf6 63.Rc6 Nb7 64.Ne6+ Kg8 65.Nc5 Nxc5 66.Rxc5 h5 67.f5 Kg7 68.Ke4 Bh4 69.Rc6 Bd8 70.Ke5 Bh4 71.fxg6 fxg6 72.Ke6 Bg3 73.Rb6 Bf2 74.Rb7+ Kh6 75.Kf7 g5 76.Rb2 Bg1 77.g4 Bd4 78.Rd2 Be5 79.Re2 hxg4 80.hxg4 Bg3 1-0
2015.11.14 Marcel Sisniega Mem 2015
2969268 GM Becerra Rivero, J (2539) IM Obregon Rivero, J (2546) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 h6 10.Bh4 g5 11.fxg5 Ng4 12.Be2 Nge5 13.Nf3 Be7 14.Rhg1 b5 15.Kb1 b4 16.Na4 Nxf3 17.gxf3 Ne5 18.f4 Ng6 19.Bg3 hxg5 20.f5 Nf4 21.Bxf4 gxf4 22.fxe6 Bxe6 23.Qxb4 Rb8 24.Qd2 Bf6 25.b3 Ke7 26.Qxf4 Qc7 27.Bg4 Be5 28.Qg5+ f6 29.Qc1 Bf7 30.h3 Rb4 31.Nb2 Rxe4 32.Nd3 Bc3 33.Bf5 Re2 34.Nf4 Re5 35.Be6 Bxe6 36.Rg7+ Kd8 37.Rxc7 Kxc7 38.Qa3 Rd8 39.Nxe6+ Rxe6 40.Qxa6 Re5 41.Qa7+ Kc6 42.Qa6+ Kc7 43.a4 Ra5 44.Qd3 Rc5 45.h4 f5 46.h5 f4 47.h6 Be5 48.h7 Rc3 49.Qf5 Re3 50.Ka2 Re2 51.Rd5 Re1 52.b4 Ra1+ 53.Kb3 Rb1+ 54.Kc4 Rh1 55.Ra5 Kb6 56.Rd5 Rh2 57.a5+ Ka7 58.Kb3 Rh8 59.Qd7+ Ka8 1-0
2015.11.13 Marcel Sisniega Mem 2015
2969245 IM Obregon Rivero, J (2546) GM Alvarez Pedraza, A (2474) 1/2-1/2
1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bd7 5.Nf3 Bc6 6.Bd3 Nd7 7.O-O Ngf6 8.Ng3 g6 9.c4 Bg7 10.d5 exd5 11.Re1+ Kf8 12.Nd4 dxc4 13.Nxc6 bxc6 14.Bxc4 Nb6 15.Bd3 Nfd5 16.a3 f5 17.Qc2 Qf6 18.h4 Qxh4 19.Qxc6 Bd4 20.Bxf5 Kg7 21.Re4 Qxg3 22.Rxd4 Qe5 23.Rxd5 Nxd5 24.Be6 Nf6 25.Be3 Rhe8 26.Bh3 Rad8 27.Rc1 Re7 28.Bc5 Rf7 29.Be6 Qxb2 30.Rf1 Qe2 31.Bxf7 Rd1 32.Rxd1 Qxd1+ 33.Kh2 Qh5+ 34.Kg1 Qd1+ 1/2-1/2
2015.11.13 Marcel Sisniega Mem 2015
2969252 GM Papin, V (2497) IM Obregon Rivero, J (2546) 1/2-1/2
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.d4 d6 6.Nf3 c6 7.O-O Qa5 8.Bd2 Qa6 9.b3 d5 10.cxd5 Nxd5 11.e4 Nxc3 12.Bxc3 Bg4 13.Qc2 Bxf3 14.Bxf3 Nd7 15.Rfd1 Qb6 16.Rac1 Rfd8 17.Bg4 Nf6 18.Bf3 Nd7 19.Bg4 Nf6 20.Bf3 Nd7 21.Qd2 a5 22.Bg2 1/2-1/2
2015.11.12 Marcel Sisniega Mem 2015
2969237 FM Rodriguez, Pe (2335) IM Obregon Rivero, J (2546) 0-1
1.e4 c5 2.Nc3 g6 3.d3 Bg7 4.Be3 d6 5.g3 Nc6 6.Qd2 b5 7.Bg2 b4 8.Nd1 Qc7 9.f4 e6 10.h3 Nge7 11.Nf3 a5 12.O-O O-O 13.c3 bxc3 14.bxc3 Rb8 15.Rc1 a4 16.Bf2 a3 17.Re1 Qa5 18.d4 cxd4 19.Nxd4 Nxd4 20.Bxd4 e5 21.Be3 Rd8 22.c4 Qxd2 23.Bxd2 Be6 24.g4 exf4 25.Bxf4 Nc6 26.Bf1 Nb4 27.Nc3 Rbc8 28.Nd5 Bxd5 29.cxd5 Rxc1 30.Bxc1 Ra8 31.Bc4 Rc8 32.Bf1 Bd4+ 33.Kh1 Bb2 34.Bxb2 axb2 35.Rb1 Rc2 36.a3 Na2 37.e5 Nc3 38.exd6 Kf8 39.d7 Ke7 40.Re1+ Kxd7 41.Bd3 Rd2 42.Bf1 0-1
2015.11.11 Marcel Sisniega Mem 2015
2969229 IM Obregon Rivero, J (2546) Lopez Raygoza, Luis Albert (2163) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 Nf6 6.c3 O-O 7.h3 Re8 8.d4 d5 9.exd5 Nxd5 10.dxc5 Nc7 11.Ba4 Bf5 12.Na3 Qxd1 13.Rxd1 Red8 14.Bf4 Ne6 15.Be3 h6 16.Rxd8+ Rxd8 17.Rd1 Rxd1+ 18.Bxd1 g5 19.Nb5 Bg6 20.Nfd4 Ned8 21.Nxc6 Nxc6 22.Bf3 a6 23.Nd4 Nd8 24.c6 bxc6 25.Nxc6 Nxc6 26.Bxc6 Bd3 27.a4 f5 28.g4 f4 29.Bd5+ Kf8 30.Bc5 Ke8 31.Bg2 Be2 32.f3 Kd7 33.Kf2 Bd3 34.Bf1 Bxf1 35.Kxf1 e5 36.Ke2 Kc6 37.Be7 Kd5 1-0
2015.04.05 LXI Mexican Open 2015
3064513 IM Obregon Rivero, J (2547) GM Gonzalez Zamora, J (2540) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d6 6.c4 Nbd7 7.Nc3 e5 8.e3 Re8 9.a4 a5 10.b3 c6 11.Ra2 exd4 12.exd4 Nb6 13.h3 d5 14.c5 Nbd7 15.Bf4 b6 16.Qc2 h6 17.Bd6 Bf8 18.Ne5 Bb7 19.Bxf8 Kxf8 20.Nxd7+ Nxd7 21.cxb6 Qxb6 22.Rd1 Kg7 23.h4 Rad8 24.Rb2 Ba6 25.Bf3 Re6 26.b4 axb4 27.Na2 Bc4 28.Nxb4 Qa5 29.Ra1 Nf6 30.Kg2 Rde8 31.Qc3 h5 32.Nxd5 Qxd5 33.Bxd5 Bxd5+ 34.Kf1 Ng4 35.Kg1 g5 36.hxg5 h4 37.gxh4 Re4 38.Rbb1 Rh8 39.Qg3 Ne3 40.fxe3 Rexh4 41.e4 1-0
2015.04.04 LXI Mexican Open 2015
3064497 IM Obregon Rivero, J (2547) GM Macieja, B (2601) 1-0
1.e4 c5 2.Nf3 Nc6 3.Bb5 d6 4.O-O Bd7 5.Re1 Nf6 6.h3 Ne5 7.a4 a6 8.Bxd7+ Nfxd7 9.Nxe5 Nxe5 10.d4 cxd4 11.Qxd4 Rc8 12.Na3 Nc6 13.Qc3 Ne5 14.Qb3 Qc7 15.Be3 g6 16.f4 Nd7 17.e5 dxe5 18.fxe5 e6 19.Kh1 Bg7 20.Qb4 Nxe5 21.Rad1 Qe7 22.Qe4 Nc6 23.Nc4 O-O 24.Nd6 Rb8 25.Bc5 Rfd8 26.b4 Qc7 27.a5 Nxa5 28.bxa5 Qxc5 29.Nxb7 Qc7 30.Nxd8 Rxd8 31.Rxd8+ Qxd8 32.Qb7 Qxa5 33.Rf1 f5 34.Qc8+ Kf7 35.Qd7+ Kf6 36.Rb1 g5 37.Qd6 Qc3 38.Qd1 a5 39.Rb6 Qc7 40.Qd6 Qxd6 41.Rxd6 Bf8 42.Ra6 Bb4 43.Kg1 f4 44.Kf2 Kf5 45.Rc6 Ke5 46.Ke2 h5 47.c3 Be7 48.Ra6 Bd8 49.Ra8 Bb6 50.Rh8 h4 51.Rb8 Bc7 52.Rb5+ Ke4 53.Rxg5 Be5 54.Kd2 a4 55.Rg6 Kd5 56.Rg8 a3 57.Ra8 Bd6 58.Kd3 e5 59.c4+ Kc6 60.Ra6+ Kb7 61.Ra4 Kb6 62.Ke4 Kc7 63.Kd5 1-0
2015.04.04 LXI Mexican Open 2015
3064504 IM Hevia, A (2520) IM Obregon Rivero, J (2547) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 h6 10.Bh4 g5 11.fxg5 Ng4 12.Be2 Nge5 13.Nxc6 Nc4 1/2-1/2
2015.04.03 LXI Mexican Open 2015
3064484 IM Obregon Rivero, J (2547) IM Garcia Pantoja, R (2485) 1-0
1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.Ngf3 c5 5.g3 Nc6 6.Bg2 g6 7.O-O Bg7 8.c3 O-O 9.e5 Nd7 10.d4 a5 11.Re1 cxd4 12.cxd4 f6 13.Bh3 fxe5 14.Bxe6+ Kh8 15.Bxd5 exd4 16.Bxc6 bxc6 17.Nc4 Ba6 18.Bg5 Bf6 19.Nce5 Nxe5 20.Rxe5 c5 21.Rxc5 Bb7 22.Bh6 Qd7 23.Bxf8 Rxf8 24.Rac1 Qg4 25.Nd2 Qh3 26.Qf1 Qe6 27.Re1 Qxa2 28.Nc4 Bg7 29.Ra1 Qb3 30.Nxa5 Qf3 31.Nxb7 d3 32.Qg2 Qe2 33.Rd5 Qxb2 34.Rf1 Bd4 35.Rd8 Rxd8 36.Nxd8 1-0
2015.04.03 LXI Mexican Open 2015
3064491 GM Alvarez Pedraza, A (2464) IM Obregon Rivero, J (2547) 1/2-1/2
1.Nf3 Nf6 2.c4 g6 3.b3 Bg7 4.Bb2 O-O 5.g3 d6 6.d4 Bf5 7.Bg2 Qc8 8.O-O c5 9.d5 a6 10.Nc3 b5 11.Nh4 Bh3 12.Qc2 Bxg2 13.Kxg2 Nbd7 14.Rab1 Rb8 15.Nf3 e5 16.Nd2 b4 17.Nd1 Nh5 18.e3 f5 19.f4 Qe8 20.Nf2 a5 21.Rbe1 a4 22.e4 a3 23.Ba1 Qd8 24.fxe5 Nxe5 25.exf5 gxf5 26.Nh3 f4 27.Bxe5 Bxe5 28.Nf3 Qd7 29.Nxe5 dxe5 30.Qe2 Ng7 31.gxf4 exf4 32.Nxf4 Rbe8 33.Ne6 Nxe6 34.Rxf8+ Kxf8 35.dxe6 Qg7+ 36.Kh1 Qb7+ 37.Kg1 Qg7+ 38.Qg2 Qxg2+ 39.Kxg2 Ke7 40.Kf3 Rf8+ 41.Kg3 Rd8 42.Re2 Rd4 1/2-1/2
2015.04.02 LXI Mexican Open 2015
3064471 IM Obregon Rivero, J (2547) IM Ruiz C, J (2417) 1/2-1/2
1.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O c5 6.c4 Be7 7.Nc3 O-O 8.b3 d5 9.Bb2 cxd4 10.exd4 Nc6 11.Qe2 Rc8 12.Rac1 Nb4 13.Ne5 Nxd3 14.Qxd3 dxc4 15.bxc4 Qd6 16.Nb5 Qb8 17.Ba3 Bxa3 18.Qxa3 Rcd8 19.Nxa7 Rxd4 20.Nac6 Bxc6 21.Nxc6 Qd6 22.Qxd6 Rxd6 23.Ne7+ Kh8 24.Rfd1 Rfd8 25.Rxd6 Rxd6 26.a4 g6 27.f3 Kg7 28.c5 bxc5 29.Rxc5 Rd1+ 30.Kf2 Rd2+ 31.Kf1 Ra2 32.a5 Kf8 33.Nc6 Nd5 34.g3 Ke8 35.Nb8 Rxh2 36.a6 Ra2 37.Rc8+ Ke7 38.a7 h5 39.Kg1 f5 40.a8=Q Rxa8 41.Nc6+ Kd7 42.Rxa8 Kxc6 43.Rg8 Ne7 44.Rg7 Kd7 45.f4 Ke8 46.Kh2 Kf8 47.Rh7 Nc6 48.Kh3 Nd4 49.Rd7 Nf3 50.Kg2 Ne1+ 51.Kf2 Nc2 52.Ke2 Nb4 53.Ke3 Nd5+ 54.Kf3 Ne7 55.Ke3 Kf7 56.Kd4 Kf6 1/2-1/2
2015.04.02 LXI Mexican Open 2015
3064478 Garduno Vidal, Omar (2090) IM Obregon Rivero, J (2547) 0-1
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.g3 Bg7 5.Bg2 O-O 6.Nge2 c5 7.O-O Nc6 8.d3 a6 9.h3 Rb8 10.f4 Ne8 11.a4 Nc7 12.Kh2 Bd7 13.Ra3 b5 14.axb5 axb5 15.cxb5 Nxb5 16.Nxb5 Rxb5 17.Nc3 Ra5 18.Rxa5 Qxa5 19.Bd2 Qb6 20.Bc1 Rb8 21.Re1 Qa5 22.e5 dxe5 23.Bxc6 Bxc6 24.fxe5 Rd8 25.Bg5 Qc7 26.Bf4 Qb7 27.Qc2 Qb4 28.h4 Rd4 29.Kg1 h6 30.Re3 c4 31.dxc4 Qxc4 32.Qe2 Qe6 33.Kh2 Qf5 34.e6 Rxf4 35.gxf4 Qxf4+ 36.Kh3 f5 37.Rg3 g5 38.hxg5 hxg5 39.Kh2 Qh4+ 40.Rh3 Be5+ 0-1
2015.04.01 LXI Mexican Open 2015
3064464 Gutierrez Perez, Fabian IM Obregon Rivero, J (2547) 0-1
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 d6 6.d4 e5 7.dxe5 Nfd7 8.c4 dxe5 9.Nc3 e4 10.Nd4 Nc5 11.Ndb5 Nba6 12.O-O Bg4 13.Qc1 c6 14.Nxe4 Bxb2 15.Qxb2 Nxe4 16.Bxe4 cxb5 17.Bxb7 Nc7 18.Rfd1 Qe7 19.Bxa8 Rxa8 20.cxb5 Nxb5 21.Rac1 Bh3 22.Rc4 Re8 23.a4 Nd6 24.Rh4 Bc8 25.Qa3 Qxe2 26.Qxd6 Bb7 0-1
2015.03.31 LXI Mexican Open 2015
3064457 IM Obregon Rivero, J (2547) Solis Castro, Angel Alejan (2038) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Be7 8.Be3 O-O 9.f4 Qc7 10.Kh1 Nc6 11.Qe1 Re8 12.Qg3 Nxd4 13.Bxd4 b5 14.e5 dxe5 15.fxe5 Nd7 16.Nd5 exd5 17.e6 Qxg3 18.exf7+ Kf8 19.fxe8=Q+ Kxe8 20.hxg3 Nf6 21.Bd3 Bb7 22.Rae1 Ne4 23.Bxe4 dxe4 24.Bxg7 Rc8 25.c3 Rc5 26.Bf6 Rh5+ 27.Kg1 Bc5+ 28.Bd4 Bd6 29.g4 Rh4 30.Rf5 Bh2+ 31.Kf1 Rxg4 32.Be5 Bxe5 33.Rxe5+ Kf7 34.Rd1 Kf6 35.Re8 Rg7 36.Red8 e3 37.R1d6+ Kf5 38.R6d7 Bxg2+ 39.Ke2 Rg3 40.Rf7+ Ke6 41.Rxh7 Bf3+ 42.Kxe3 Bd5+ 43.Kf4 Rf3+ 44.Kg4 Rf6 45.Rhd7 Bxa2 46.Rd6+ Ke5 47.Rxf6 Kxf6 48.Rd6+ Ke5 49.Rxa6 Bb1 50.Rb6 Bd3 51.Kf3 Kd5 52.Ke3 Kc5 53.Rh6 Bb1 54.Rh5+ Kc4 55.Rh4+ Kc5 56.b4+ Kd5 1-0
2014.12.22 26th Carlos Torre Mem
3102382 GM Bruzon Batista, L (2668) IM Obregon Rivero, J (2548) 1/2-1/2
1.d4 Nf6 2.Nf3 e6 3.c4 d5 4.g3 Be7 5.Bg2 O-O 6.O-O dxc4 7.Qc2 a6 8.a4 Nbd7 9.Qxc4 b5 10.Qc2 Bb7 11.Bg5 Be4 12.Qc1 c5 13.Nbd2 Bb7 14.axb5 axb5 15.Rxa8 Bxa8 16.dxc5 Bxc5 17.Bxf6 Qxf6 18.Qc2 h6 19.Ne1 Bxg2 20.Kxg2 Rb8 21.Ne4 Qf5 22.Nxc5 Qxc5 23.Qxc5 Nxc5 24.b4 Na4 25.Nd3 Rc8 26.Rc1 1/2-1/2
2014.12.21 26th Carlos Torre Mem
3102371 FM Miranda Mesa, E (2416) IM Obregon Rivero, J (2548) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.O-O g6 5.c3 Nf6 6.Re1 a6 7.Bf1 Bg7 8.d4 O-O 9.Nbd2 b6 10.e5 dxe5 11.dxe5 Ng4 12.e6 fxe6 13.Bc4 Nde5 14.h3 b5 15.hxg4 Nxc4 16.Nxc4 bxc4 17.Qxd8 Rxd8 18.Be3 Rb8 19.Rad1 Rd3 20.Nd2 Bb7 21.Nxc4 Rxd1 22.Rxd1 Bd5 23.b3 Rb5 24.Rc1 Bxc4 25.bxc4 Ra5 26.Rc2 Kf7 27.f3 Ra4 28.Bxc5 Rxc4 29.Bb4 e5 30.Re2 Ke6 31.Kf2 Bh6 32.g3 Bg5 33.Ke1 Kd5 34.Kd1 Rc8 35.Re4 Rc4 36.Re2 e6 37.Kc2 a5 38.Bxa5 Ra4 39.Bb4 Rxa2+ 40.Kd3 Rxe2 41.c4+ Kc6 42.Kxe2 h5 43.gxh5 gxh5 44.Be1 Kc5 45.Kd3 Bf6 46.Bf2+ Kb4 47.Be1+ Kc5 48.Bf2+ Kb4 49.Bb6 h4 50.gxh4 Bxh4 51.Bc7 Kc5 52.Bxe5 Kc6 53.Bd4 Bd8 54.Ke4 Bc7 55.Be5 Ba5 56.Bd4 Bc7 57.f4 Ba5 58.c5 Bc7 59.Be5 Ba5 60.Kd4 Bd8 61.Bd6 Bf6+ 62.Ke4 Bc3 63.Be5 Ba5 64.Bd4 Bd8 65.f5 exf5+ 66.Kxf5 Kd5 1/2-1/2
2014.12.21 26th Carlos Torre Mem
3102379 IM Obregon Rivero, J (2548) IM Ibarra Chami, L (2462) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.b3 O-O 6.Bb2 b5 7.d3 Bb7 8.Nbd2 c5 9.e3 Nc6 10.c4 a6 11.a3 Qb6 12.Rc1 Rfd8 13.Qc2 Ne8 14.d4 dxc4 15.bxc4 cxd4 16.exd4 bxc4 17.Nxc4 Qa7 18.Rfe1 Rac8 19.Qb1 Ba8 20.h4 h6 21.Ne3 Na5 22.d5 Rxc1 23.Qxc1 Bxd5 24.Nxd5 exd5 25.Nd4 Bf6 26.Nf5 d4 27.Bf1 Qb6 28.Bd3 Nb3 29.Nxh6+ Kf8 30.Qf4 Nc5 31.Bc4 Qa5 32.Re5 gxh6 33.Qxh6+ Bg7 34.Qh5 Nd6 35.Rxc5 Qd2 36.Rc7 Qe1+ 37.Kg2 Qe8 38.Bd5 Kg8 39.Qg5 Kh8 40.Bxf7 Qe4+ 41.Kh2 Rb8 42.Bxd4 Bxd4 43.Bg6 Qf3 44.Qh6+ 1-0
2014.12.19 26th Carlos Torre Mem
3102343 GM Borges Mateos, J (2441) IM Obregon Rivero, J (2548) 1/2-1/2
1.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Bg5 Be7 5.Nc3 O-O 6.e3 c6 7.Bd3 Nbd7 8.O-O b6 9.Qe2 Bb7 10.Rfd1 dxc4 11.Bxc4 Nd5 12.Bxe7 Nxc3 13.bxc3 Qxe7 14.a4 c5 15.a5 e5 16.Qb2 exd4 17.cxd4 Bxf3 18.gxf3 cxd4 19.Rxd4 Ne5 20.Bd5 Rab8 21.f4 Ng4 22.h3 Nf6 23.Bf3 bxa5 24.Qd2 Qe6 25.Kg2 Rb6 26.Qxa5 1/2-1/2
2014.12.19 26th Carlos Torre Mem
3102352 IM Obregon Rivero, J (2548) IM Garcia Pantoja, R (2461) 0-1
1.d4 Nf6 2.Nc3 e6 3.e4 d5 4.e5 Nfd7 5.Nf3 c5 6.dxc5 Nc6 7.Bf4 Nxc5 8.Qd2 a6 9.Bd3 Be7 10.h4 d4 11.Ne2 Nxd3+ 12.Qxd3 Nb4 13.Qb3 Nxc2+ 14.Qxc2 d3 15.Qd2 dxe2 16.Qxe2 Bd7 17.a4 O-O 18.Kf1 Qa5 19.Kg1 Rac8 20.Ng5 Qb4 21.Qd3 g6 22.Qxd7 Rfd8 23.Bd2 Rxd7 24.Bxb4 Bxb4 25.Kh2 Rc4 26.Rad1 Rd2 27.Rxd2 Bxd2 28.Nf3 Rc2 29.Rd1 Ba5 30.b3 Bc7 31.Rd4 Kf8 32.Rb4 b6 33.Kg1 Rc1+ 34.Kh2 Ke7 35.g3 h6 36.Kg2 Rc3 37.Nd2 a5 38.Rb5 Kd7 39.b4 Ra3 40.bxa5 bxa5 41.Rc5 Rxa4 42.Nc4 Rb4 43.Nxa5 Bb6 44.Nb7 Ba7 45.f4 Rxb7 46.Rc2 h5 47.Rd2+ Ke7 48.Kh3 Rb3 49.Ra2 Bd4 50.Rc2 Rb2 51.Rc1 Bf2 52.Rf1 Bc5 53.Rc1 Bb4 54.Rc7+ Ke8 55.Rc8+ Kd7 56.Rc1 Re2 57.Ra1 Be1 58.Ra3 Bf2 59.Rd3+ Ke7 60.Rf3 Bg1 61.g4 Re3 62.Kg3 Bh2+ 63.Kg2 Rxf3 64.Kxf3 Kd7 0-1
2014.12.18 26th Carlos Torre Mem
3102330 Broca Jimenez, F (2085) IM Obregon Rivero, J (2548) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.O-O a6 9.Bf4 Qc7 10.Re1 Be7 11.Be2 O-O 12.Bf3 Ne5 13.Be2 b5 14.f3 Bb7 15.a4 b4 16.Na2 d5 17.exd5 Bxd5 18.Bxa6 Qb6+ 19.Qd4 Qxd4+ 20.Nxd4 Ng6 21.Be3 0-1
2014.12.18 26th Carlos Torre Mem
3102338 IM Obregon Rivero, J (2548) IM Perez Garcia, Rodn (2337) 1-0
1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.O-O Be7 5.c4 O-O 6.b3 b6 7.Bb2 Bb7 8.d4 dxc4 9.bxc4 c5 10.e3 Nc6 11.Nbd2 Qc7 12.Qe2 Rfd8 13.Rfd1 Rac8 14.Rac1 Qb8 15.h4 a6 16.Bh3 Rc7 17.d5 exd5 18.cxd5 Nxd5 19.e4 Ndb4 20.Nc4 Nxa2 21.Rxd8+ Bxd8 22.Rd1 Nab4 23.Nxb6 Re7 24.Nd7 Qc7 25.Ng5 Bc8 26.Qh5 h6 27.Nf6+ gxf6 28.Qxh6 Re5 29.Qh7+ Kf8 30.Qh8+ Ke7 31.Nh7 Bxh3 32.Qf8+ Ke6 33.Qe8+ 1-0
2014.05.14 49th Capablanca Mem Open I 2014
3191329 IM Jimenez Fraga, P (2463) IM Obregon Rivero, J (2509) 0-1
1.e4 c6 2.d4 d5 3.e5 Bf5 4.Nf3 e6 5.Be2 Ne7 6.O-O c5 7.dxc5 Nec6 8.a3 Bxc5 9.b4 Bb6 10.Bb2 Nd7 11.c4 dxc4 12.Nbd2 c3 13.Bxc3 O-O 14.Nc4 Bc7 15.b5 Ne7 16.Bb4 Re8 17.Rc1 Nd5 18.Bd6 Bb6 19.Nd4 Be4 20.Qd2 Qh4 21.Nxb6 Nf4 22.Nxd7 Qh3 0-1
2014.05.12 49th Capablanca Mem Open I 2014
3191287 IM Obregon Rivero, J (2509) IM Cuenca Jimenez, J (2489) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d5 6.c4 dxc4 7.Na3 Nc6 8.Nxc4 Be6 9.b3 Bd5 10.Bb2 a5 11.a4 Qb8 12.Nce5 Rd8 13.Rc1 Nxe5 14.Nxe5 Bxg2 15.Kxg2 Nd7 16.Nd3 c6 17.Qc2 Qd6 18.e3 e5 19.dxe5 Nxe5 20.Nxe5 Bxe5 21.Rfd1 Qc7 22.Ba3 Bd6 23.Bb2 Be5 24.Ba3 Bd6 25.Bxd6 Rxd6 26.Rxd6 Qxd6 27.Rd1 Qe7 28.Qd2 Qe4+ 29.f3 Qe6 30.Qc3 Re8 31.Rd3 Qe5 32.Kf2 Qxc3 33.Rxc3 Rd8 34.e4 Rd6 35.Ke3 Kf8 36.h4 Ke7 37.h5 gxh5 38.Rc5 Rd7 39.Rxa5 Rd6 40.Rxh5 1/2-1/2
2014.05.11 49th Capablanca Mem Open I 2014
3191240 IM Gerzhoy, L (2472) IM Obregon Rivero, J (2509) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 c5 7.Nge2 cxd4 8.Nxd4 Nc6 9.Be2 Bd7 10.O-O Nxd4 11.Bxd4 a5 12.Qd2 Bc6 13.b3 Nd7 14.Bf2 Nc5 15.Rab1 Be5 16.a3 e6 17.b4 axb4 18.axb4 Qf6 19.Nd1 Na4 20.Rb3 d5 21.cxd5 exd5 22.b5 Bd7 23.Ne3 Be6 24.exd5 Rfd8 25.Ng4 Bxg4 26.fxg4 Nc3 27.Bf3 Ra2 28.Qd3 0-1
2014.05.10 49th Capablanca Mem Open I 2014
3191185 IM Obregon Rivero, J (2509) IM Fernandez Cardoso, A (2450) 1-0
1.e4 c5 2.Nf3 Nc6 3.c3 d5 4.exd5 Qxd5 5.d4 Bf5 6.Be3 Nf6 7.Qb3 Qxb3 8.axb3 cxd4 9.Nxd4 Nxd4 10.Bxd4 Nd7 11.b4 e5 12.Be3 Be7 13.Nd2 a6 14.Be2 O-O 15.Bf3 Rab8 16.O-O Be6 17.Rfd1 f5 18.Nc4 f4 19.Ba7 Ra8 20.Nb6 Nxb6 21.Bxb6 Rae8 22.Ba5 Bc8 23.Bd5+ Kh8 24.Bc7 Bg5 25.Re1 Rf5 26.Rad1 g6 27.c4 Bh6 28.c5 Bg7 29.f3 Bf8 30.Bb3 Bg7 31.Ba4 Rg8 32.Bc2 Rh5 33.Rd5 e4 34.Rxh5 gxh5 35.Bxe4 Bd4+ 36.Kh1 Re8 37.Rd1 Be3 38.h4 Bf2 39.Bxf4 Bxh4 40.Rd5 Be1 41.Rg5 1-0
2014.05.09 49th Capablanca Mem Open I 2014
3191130 IM Gomez Fontal, F (2353) IM Obregon Rivero, J (2509) 0-1
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6 6.h3 e5 7.dxe5 dxe5 8.Qxd8 Rxd8 9.Bg5 c6 10.Nxe5 Re8 11.O-O-O h6 12.Bh4 Na6 13.Nf3 Nc5 14.e5 Nfd7 15.Bg3 Nxe5 16.Nxe5 Bxe5 17.Bxe5 Rxe5 18.Rd8+ Kg7 19.Be2 Re7 20.Bf3 Ne6 21.Re1 Nxd8 22.Rxe7 Be6 23.b3 Rc8 24.Re8 f5 25.g4 Bf7 26.Re3 Kf6 27.gxf5 gxf5 28.Rd3 Ne6 29.Rd7 Nc5 30.Rd6+ Be6 31.h4 Nd7 32.Kd2 Ne5 33.Be2 Rg8 34.Nd5+ cxd5 35.cxd5 Re8 36.f4 Nf7 37.Rxe6+ Rxe6 38.dxe6 0-1
2014.05.08 49th Capablanca Mem Open I 2014
3191076 IM Obregon Rivero, J (2509) FM Fernandez De La Vara, Arnaldo (2312) 1-0
1.d4 Nf6 2.Nf3 e6 3.c4 b6 4.a3 Bb7 5.Nc3 d5 6.Bg5 Be7 7.e3 O-O 8.Be2 Nbd7 9.O-O c5 10.dxc5 Nxc5 11.Qc2 Nfe4 12.Bxe7 Qxe7 13.Nxe4 Nxe4 14.Bd3 Rfc8 15.Bxe4 dxe4 16.Nd2 b5 17.Rfc1 bxc4 18.Qa4 Bd5 19.Nxc4 Qc5 20.Rc3 Bxc4 21.Rac1 Qd5 22.Rxc4 Rxc4 23.Rxc4 Qd2 24.g3 g6 25.Rc7 Qxb2 26.Qxe4 Qb8 27.Rb7 Qd6 28.Qf3 Rf8 29.Rxa7 Qb6 30.Ra8 Rxa8 31.Qxa8+ Kg7 32.a4 h5 33.h4 g5 34.hxg5 h4 35.Qe4 Qa5 36.gxh4 Kf8 37.Kg2 Kg7 38.Qc4 Kg8 39.Qf4 Kg7 40.Kh2 Qd5 41.h5 e5 42.Qf6+ 1-0
2013.12.20 25th Carlos Torre Open
3235023 IM Obregon Rivero, J (2519) GM Quesada Perez, Yu (2639) 1-0
1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Be7 6.Qe2 Nxc3 7.dxc3 c5 8.Bf4 Nc6 9.O-O-O Be6 10.h4 h6 11.g3 Qa5 12.Kb1 O-O-O 13.Bh3 Qc7 14.Bxe6+ fxe6 15.Qd3 Qd7 16.Qg6 Bf8 17.h5 Ne7 18.Qg4 Nf5 19.Qh3 Rg8 20.g4 Ne7 21.g5 Nf5 22.c4 Qc6 23.Rhg1 hxg5 24.Nxg5 dxc4 25.Rxd8+ Kxd8 26.h6 gxh6 27.Nf7+ Ke8 28.Rxg8 Kxf7 29.Rg4 Bg7 30.Qh5+ Kf8 31.Qg6 Qe8 32.Qh7 Qf7 33.a4 a6 34.a5 c3 35.b3 c4 36.Bc1 cxb3 37.Ba3+ Ke8 38.cxb3 c2+ 39.Ka2 Kd7 40.Rg2 Kc6 41.Rxc2+ Kd5 42.Bd6 Qh5 43.Qg8 Qd1 44.Rc5+ Ke4 45.Qxe6 Nd4 46.Qg6+ Ke3 47.Rc3+ Kf2 48.Qg3+ Kf1 49.Qf4+ Ke1 50.Rc1 1-0
2013.12.19 25th Carlos Torre Open
3235015 GM Bruzon Batista, L (2677) IM Obregon Rivero, J (2519) 1/2-1/2
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.d3 c5 6.e4 Nc6 7.Nge2 d6 8.O-O Ne8 9.a3 Nc7 10.Rb1 a5 11.Be3 Rb8 12.d4 cxd4 13.Nxd4 Nxd4 1/2-1/2
2013.12.18 25th Carlos Torre Open
3235007 IM Mosquera, M (2394) IM Obregon Rivero, J (2519) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Qc7 6.f4 a6 7.Be3 b5 8.Qf3 Bb7 9.Bd3 Nf6 10.O-O-O Rc8 11.Kb1 Nxd4 12.Bxd4 Bc5 13.Bxc5 Qxc5 14.Rhe1 b4 15.Na4 Qa5 16.b3 O-O 17.g4 Bc6 18.g5 Ne8 19.Nb2 Nd6 20.Nc4 Nxc4 21.Bxc4 Bb5 0-1
2013.12.18 25th Carlos Torre Open
3235012 IM Obregon Rivero, J (2519) GM Vera Gonzalez Quevedo, R (2446) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3 10.e5 h6 11.Bh4 dxe5 12.fxe5 Nd5 13.Nxd5 exd5 14.e6 Bxe6 15.Nxe6 fxe6 16.Bd3 Be7 17.Bg6+ Kd8 18.Bxe7+ Qxe7 19.O-O Nd7 20.Rf7 Qc5+ 21.Kh1 Rf8 22.Rxg7 Qf2 23.Qxf2 Rxf2 24.Kg1 Rf8 25.Rxb7 Nc5 26.Rb6 Nd7 27.Rxe6 Rb8 28.h3 Kc7 29.Rxa6 1-0
2013.12.15 25th Carlos Torre Open
3239051 GM Cordova, E (2596) IM Obregon Rivero, J (2519) 1-0
1.Nf3 Nf6 2.d4 g6 3.g3 Bg7 4.Bg2 c5 5.O-O cxd4 6.Nxd4 O-O 7.c4 Nc6 8.Nc3 Qb6 9.Nb3 d6 10.Be3 Qa6 11.Nb5 Rb8 12.h3 Be6 13.a4 Rfc8 14.Nd2 Nd7 15.Rb1 Bf5 16.Ne4 Nf6 17.f3 Nxe4 18.fxe4 Be6 19.b3 Qa5 20.Kh2 a6 21.Bd2 Qd8 22.Nc3 Bxc3 23.Bxc3 b5 24.cxb5 axb5 25.Qd2 b4 26.Ba1 Ne5 27.Rfc1 Rxc1 28.Qxc1 Qb6 29.Qd1 Nc6 30.Qd2 f6 31.e3 Na5 32.Bd4 Qa6 33.Qd1 Rc8 34.Qd2 Nxb3 35.Qxb4 Rc2 36.Qb5 Qa8 37.Rxb3 Qxe4 38.Qe8+ Kg7 39.Qxe7+ Kh6 40.Qf8+ Kh5 41.Rb5+ d5 42.Rxd5+ Qxd5 43.g4+ Bxg4 44.hxg4+ Kxg4 45.Qc8+ Qf5 46.Qxf5+ Kxf5 47.a5 Ra2 48.Bb6 Kg4 49.Kg1 Ra1+ 50.Bf1 h5 51.a6 h4 52.Bd4 Ra5 53.a7 h3 54.Bc4 Kg3 55.Bd5 h2+ 56.Kh1 Rb5 57.Be4 1-0
2013.12.15 25th Carlos Torre Open
3239063 IM Obregon Rivero, J (2519) IM Della Morte, P (2405) 1/2-1/2
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.c4 e5 6.Nc3 Nge7 7.Ne1 O-O 8.Nc2 d6 9.Ne3 f5 10.Ned5 e4 11.d3 exd3 12.Qxd3 Ne5 13.Qc2 N7c6 14.b3 g5 15.f4 gxf4 16.Bxf4 Ng6 17.Rad1 Nxf4 18.Nxf4 Be5 19.e3 Qg5 20.Rf2 Bd7 21.Nb5 Rf6 22.Rfd2 Qh6 23.a3 a6 24.Nc7 Rc8 25.Ncd5 Rff8 26.Rd3 Kh8 27.Nb6 Rcd8 28.Nxd7 Rxd7 29.Bxc6 bxc6 30.Qg2 Rc7 31.Qf3 a5 32.Ng2 Qg5 33.Rf1 Rcc8 34.Kh1 Qg4 35.Nh4 Qe4 36.Rdd1 a4 37.bxa4 Qxc4 38.Nxf5 Qxa4 39.e4 Ra8 40.Rxd6 Rxf5 41.Qxf5 Bxd6 42.Qf6+ Kg8 43.Qe6+ Kh8 44.Qf6+ Kg8 45.Qe6+ Kh8 1/2-1/2
2013.11.05 3rd Panama Open
3251144 IM Ruiz Sanchez, O (2420) IM Obregon Rivero, J (2526) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 Rc8 8.Nxc6 Bxc6 9.f3 h6 10.Be3 a6 11.O-O-O Qc7 12.Kb1 b5 13.Bd3 g6 14.g4 Bg7 15.h4 h5 16.gxh5 Nxh5 17.Ne2 a5 18.Bd4 Bh6 19.Be3 Bg7 20.Nd4 b4 21.Rhg1 Nf6 22.Rg5 Bd7 23.Rh1 e5 24.Nb5 Bxb5 25.Bxb5+ Ke7 26.Rgg1 Nh5 27.Ba4 Bf6 28.Qd5 Rh7 29.Rg2 Ng7 30.Bb3 Ne6 31.Rd1 Bxh4 32.Rxg6 Bf6 33.Rg2 Nf4 34.Bxf4 exf4 35.Qf5 Rh4 36.Rg6 1-0
2013.11.04 3rd Panama Open
3251043 GM Cori, J (2609) IM Obregon Rivero, J (2526) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 c5 6.d5 d6 7.Nc3 e6 8.O-O exd5 9.cxd5 Re8 10.Bf4 a6 11.a4 Nh5 12.Bg5 Qc7 13.Qc2 Nd7 14.e4 Rb8 15.a5 b5 16.axb6 Rxb6 17.Ra2 Rb4 18.Nd2 Ne5 19.h3 f5 20.Re1 Rf8 21.exf5 Bxf5 22.Nce4 Nf7 23.Be3 Nf6 24.Nxf6+ Bxf6 25.Ne4 Bxe4 26.Bxe4 Qb7 27.Re2 Qb5 28.Bf4 Kg7 29.h4 Rb8 30.Kg2 Rxb2 31.Rxb2 Qxb2 32.Qd3 Qb5 33.Qf3 Be5 34.h5 Qd7 35.Bc1 a5 36.Bc2 Rb4 37.hxg6 hxg6 38.Re4 Qf5 39.Qe2 Rxe4 40.Bxe4 Qf6 41.f4 Bd4 42.Bd3 Nh6 43.g4 Ng8 44.f5 Qe5 45.Qxe5+ Bxe5 46.Kf3 gxf5 47.gxf5 Ne7 48.Ke4 Kf6 49.Bb5 Nxf5 50.Bd2 a4 51.Bxa4 c4 52.Ba5 Ng3+ 53.Kf3 Nh5 54.Bd8+ Kf7 55.Ke4 Ng3+ 56.Kf3 Nf5 57.Ke4 Nd4 58.Ba5 Nb3 59.Bb4 Nc1 60.Bb5 1/2-1/2
2013.11.04 3rd Panama Open
3251091 IM Obregon Rivero, J (2526) IM Gomez Garrido, C (2504) 0-1
1.e4 c5 2.Nc3 a6 3.a4 d6 4.f4 Nc6 5.Nf3 g6 6.Bc4 Bg7 7.O-O Nf6 8.d3 O-O 9.Qe1 Nd4 10.Nxd4 cxd4 11.Nd1 d5 12.Bb3 dxe4 13.dxe4 Nd7 14.Nf2 Nc5 15.Bc4 Bd7 16.a5 Rc8 17.Qb4 Qc7 18.Bd3 Nxd3 19.cxd3 Bb5 20.Bd2 Qd7 21.Rac1 e6 22.h3 h5 23.Qa3 Rxc1 24.Rxc1 Rc8 25.b4 e5 26.Rc5 Rxc5 27.bxc5 Qc7 28.fxe5 Qxe5 29.Qc1 Bf8 30.Bb4 Kh7 31.Qd1 Bxc5 32.Bxc5 Qxc5 33.Qf3 Qc1+ 34.Kh2 Qc7+ 35.Kg1 Kg7 36.g4 h4 37.g5 Qc1+ 38.Kh2 Qxg5 39.Qg4 Qxg4 40.hxg4 Kf6 41.Kg2 g5 42.Kf3 Ke5 0-1
2013.11.03 3rd Panama Open
3250950 IM Prasca Sosa, R (2420) IM Obregon Rivero, J (2526) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.O-O a6 9.a3 Be7 10.Be3 Qc7 11.f4 O-O 12.Be2 b5 13.g4 d5 14.exd5 Rd8 15.Bf3 b4 16.axb4 Nxb4 17.Nb5 Qb8 18.N5d4 Nfxd5 19.Bd2 Bb7 20.Na5 Bc5 21.c3 Nc6 22.Nxb7 Qxb7 23.Bc1 Qa7 24.Ra4 Nxd4 25.cxd4 Nb6 26.Bxa8 Nxa4 27.Qxa4 Bxd4+ 28.Kg2 Qxa8+ 29.Kg3 Qe4 30.Qxa6 Bc5 31.Rf3 Qe1+ 32.Kh3 Qxc1 0-1
2013.11.03 3rd Panama Open
3250996 IM Obregon Rivero, J (2526) IM Baules, J (2311) 1-0
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 c5 5.Nf3 Nc6 6.O-O O-O 7.d4 cxd4 8.Nxd4 Qa5 9.Nc2 d6 10.Nd5 Be6 11.Bd2 Qd8 12.Bc3 Bxd5 13.cxd5 Ne5 14.f4 Ned7 15.e4 Nb6 16.a4 a5 17.Qe1 Qc7 18.Kh1 Nfd7 19.Nd4 Rfc8 20.Qe3 Qd8 21.Rfc1 Nc4 22.Qd3 Qb6 23.Rab1 Qa6 24.Bf1 Qb6 25.Bh3 Qd8 26.Ne6 Nc5 27.Nxc5 1-0
2013.11.02 3rd Panama Open
3250852 Guerrero, An (2245) IM Obregon Rivero, J (2526) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 Qb6 7.Nb3 e6 8.O-O a6 9.Kh1 Be7 10.f4 O-O 11.Qf3 Qc7 12.Bd3 b5 13.a3 Bb7 14.Bd2 b4 15.axb4 Nxb4 16.Na5 Nxd3 17.cxd3 Rab8 18.Rfc1 Qd7 19.Nxb7 Qxb7 20.Nd1 Nd7 21.Bc3 Bf6 22.d4 e5 23.fxe5 dxe5 24.d5 Nc5 25.Ne3 Nb3 26.Ng4 Qe7 27.Rxa6 Nxc1 28.Rxf6 Rfc8 29.d6 Qa7 30.d7 Qxd7 31.Nxe5 Rxc3 32.Nxd7 Rxf3 33.Rxf3 Rd8 34.Re3 Na2 35.Rb3 f5 36.Rb8 Rxb8 37.Nxb8 fxe4 38.Nc6 Kf7 39.g3 Ke6 40.Kg2 Kd5 41.Kf2 Nc1 42.Ne7+ Kd4 43.Nf5+ Kd3 44.Nxg7 Kd2 45.Nf5 Nd3+ 46.Kg2 Nxb2 47.Kh3 Kd3 48.Kg4 Nc4 49.Kg5 Nd6 50.Nh4 Kd2 51.Kf6 e3 52.Ke5 Nf7+ 53.Kf6 Nd6 54.Ke5 Nb5 55.g4 e2 56.Kf4 Nd4 57.Ng2 Nc2 58.Kg3 Ne3 59.Nh4 e1=Q+ 0-1
2013.11.02 3rd Panama Open
3250898 IM Obregon Rivero, J (2526) WGM Cori T., D (2425) 1/2-1/2
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb3 Nf6 6.Nc3 Bb4 7.a3 Bxc3+ 8.bxc3 Nxe4 9.Qg4 Nf6 10.Qxg7 Rg8 11.Qh6 Rg6 12.Qd2 d5 13.f3 e5 14.Bb2 Be6 15.O-O-O Qb6 16.Bd3 e4 17.Bf1 O-O-O 18.Qf4 Qf2 19.Rd2 Qe1+ 20.Rd1 Qf2 21.Nd4 Nxd4 22.cxd4 Ng4 23.Qd2 Qxd2+ 24.Rxd2 Ne3 25.Re2 exf3 26.gxf3 Nxf1 27.Rxf1 Rdg8 1/2-1/2
2013.10.31 3rd Panama Open
3250802 IM Obregon Rivero, J (2526) IM Davila, C (2334) 1/2-1/2
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.O-O Nf6 7.Qe2 d6 8.c4 g6 9.Nc3 Bg7 10.Be3 O-O 11.f4 Nbd7 12.Rac1 b6 13.b4 Bb7 14.Nb3 Rac8 15.a4 Rfe8 16.a5 bxa5 17.Nxa5 Ba8 18.c5 dxc5 19.Bxa6 Rb8 20.Nc4 Rxb4 21.e5 Nd5 22.Bd2 Rbb8 23.Ne4 Nb4 24.Ncd6 Rf8 25.Bb5 Bxe4 26.Qxe4 Nd5 27.Kh1 N7b6 28.Ba5 Qa7 29.Ra1 Nc8 30.Nxc8 Rfxc8 31.Bd8 Qxa1 32.Rxa1 Rxb5 33.Qa4 Rbb8 34.Bh4 c4 35.h3 c3 36.Rc1 Bh6 37.Bg3 Kg7 38.Kh2 Rb4 39.Qd7 Rbb8 40.Qa4 Rb4 41.Qd7 Rbc4 1/2-1/2
2013.10.30 3rd Panama Open
3250754 WIM Miranda Llanes, Y (2224) IM Obregon Rivero, J (2526) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.Re1 Nc7 12.a4 b6 13.f4 Rb8 14.Bf3 Ba6 15.Nf1 Nd7 16.Be3 Bc4 17.Qc2 Bxf1 18.Kxf1 b5 19.axb5 Nxb5 20.Nxb5 Rxb5 21.Rxa7 Rxb2 22.Qa4 Nb6 23.Qc6 Rf8 24.Re2 Rb1+ 25.Re1 Rb2 26.Re2 Nc4 27.g3 Qb8 28.Qa4 Rxe2 0-1
2013.10.14 7th Univ Cent Open 2013
3260642 IM Castro, O (2343) IM Obregon Rivero, J (2526) 0-1
1.d4 e6 2.c4 Nf6 3.Nc3 Bb4 4.Nf3 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 O-O 8.Qb3 Nc6 9.e3 Bf5 10.Bb5 Qd6 11.Bxf6 gxf6 12.a3 Ba5 13.O-O Ne7 14.Ne2 Bg4 15.Bd3 Bxf3 16.gxf3 Kh8 17.Kh1 c6 18.Rg1 Rg8 19.Rg3 Bc7 20.f4 Rxg3 21.hxg3 b6 22.Kg2 c5 23.dxc5 bxc5 24.Qc3 Bb6 25.Rh1 Kg7 26.Bc2 Rd8 27.Qd3 f5 28.Rd1 d4 29.exd4 cxd4 30.Qf3 Qe6 31.b4 Qa2 32.Qb3 Qxb3 33.Bxb3 d3 34.Ng1 a5 35.b5 Bc5 36.a4 Nc8 37.Nf3 Bb4 38.Ne5 d2 39.Nc6 Rd3 40.Bc2 Ra3 41.Nxb4 axb4 42.Rxd2 Ra2 43.Re2 b3 44.Bd3 Nd6 45.a5 Nxb5 46.Bxb5 b2 47.Bd3 b1=Q 48.Bxb1 Rxe2 49.Kf3 Rb2 50.Bd3 Ra2 51.a6 Kf6 52.Ke3 Ke7 53.Bxf5 Rxa6 54.g4 Ra4 55.Bc2 Rb4 56.f3 Kd6 57.Be4 Kc5 58.Kf2 Kd4 59.Kg3 Rb5 60.Bc6 Rc5 61.Be8 f6 62.Bg6 Ke3 63.Be4 Rc1 64.f5 Ra1 65.Kh4 Rh1+ 66.Kg3 Ke2 67.Bd5 Ke3 68.Be4 h5 69.Kg2 Rd1 70.gxh5 Kf4 71.Bc6 Kxf5 72.Be8 0-1
2013.10.13 7th Univ Cent Open 2013
3260617 CM Valle, E (2207) IM Obregon Rivero, J (2526) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Bd3 g6 6.O-O Bg7 7.Nc3 O-O 8.Bg5 Nc6 9.Nxc6 bxc6 10.Qd2 Rb8 11.Rab1 Re8 12.Bh6 Bh8 13.h3 Qa5 14.b4 Rxb4 15.Nd5 Ra4 16.Qxa5 Rxa5 17.Nc7 Rd8 18.Rb8 Nd7 19.Ra8 Nb6 20.Rb8 Rxa2 21.Be3 Rf8 22.Bxb6 axb6 23.Rxb6 Bd7 24.Rfb1 Be5 25.Na6 Bd4 26.Nb8 Be8 27.Nxc6 Bxb6 28.Nxe7+ Kg7 29.Rxb6 Ba4 30.Ra6 Rb8 31.Nd5 Ra1+ 32.Kh2 Rbb1 33.Rxd6 h5 34.Kg3 Bb5 35.Nc3 Bxd3 36.Nxb1 Bxe4 37.Nd2 Bxc2 38.Nf3 Ra3 39.Kf4 Ra4+ 40.Rd4 Ra5 41.g4 f6 42.gxh5 g5+ 43.Kg3 Ra3 44.h4 gxh4+ 45.Rxh4 Kh6 46.Kg2 f5 47.Nd4 Bd3 48.f3 Kg5 49.Kg3 Ra6 50.f4+ Kh6 51.Rh2 Ra4 52.Nf3 Bb5 53.Ng5 Be8 54.Rd2 Kxh5 55.Rh2+ Kg6 56.Rh8 Bd7 57.Nf3 Ra3 58.Kf2 Kg7 59.Rh5 Ra2+ 60.Kg3 Ra3 61.Kf2 Ra4 62.Kg3 Be6 63.Ne5 Re4 64.Rg5+ Kf6 65.Rg6+ Ke7 66.Rg7+ Kd6 67.Ra7 Rb4 68.Ra5 Rb1 69.Kf2 Bd5 70.Ke3 Rb3+ 71.Kf2 Rc3 72.Ke2 Rh3 73.Kf2 Rb3 74.Ke2 Rb4 75.Ra6+ Kc7 76.Ra5 Re4+ 77.Kd2 Be6 78.Ng6 Kd6 79.Re5 Ra4 80.Ke3 Ra3+ 81.Kf2 Ra2+ 82.Kg3 Ra8 83.Nh4 Rf8 84.Kf2 Rf7 85.Ra5 Bd5 86.Ke3 1/2-1/2
2013.10.13 7th Univ Cent Open 2013
3260631 IM Obregon Rivero, J (2526) Herrera, Jua (2206) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nc6 6.Nb3 Nf6 7.f4 d6 8.O-O Be7 9.c4 b5 10.cxb5 axb5 11.Qe2 Rb8 12.Be3 Bd7 13.N1d2 Nb4 14.Bb1 e5 15.fxe5 dxe5 16.Nf3 Ng4 17.Rd1 Nxe3 18.Qxe3 Nc6 19.Bd3 Qb6 20.Qxb6 Rxb6 21.Rac1 f6 22.Be2 g5 23.Ne1 h5 24.g3 b4 25.Ng2 Be6 26.Bc4 Bxc4 27.Rxc4 Kf7 28.Ne3 Rd8 29.Nd5 Ra6 30.Rdc1 Rd6 31.h3 Bd8 32.g4 hxg4 33.hxg4 Bb6+ 34.Kf1 Bd4 35.R1c2 Ba7 36.Ke1 Bb8 37.Ke2 Rxd5 38.exd5 Ne7 39.Rxb4 Bd6 40.Rb7 Kg6 41.Nc5 Rxa2 42.Ne4 Nxd5 43.Nxd6 1-0
2013.10.12 7th Univ Cent Open 2013
3260459 IM Ruiz Sanchez, O (2420) IM Obregon Rivero, J (2526) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 O-O 8.Be2 d6 9.O-O Bd7 10.Qd2 Nxd4 11.Bxd4 Bc6 12.f3 a5 13.Kh1 Nd7 14.Bxg7 Kxg7 15.f4 Qb6 16.Rf3 Nc5 17.Re3 a4 18.Rf1 f6 19.Nd5 Qa5 20.Nc3 b6 21.Bf3 Rad8 22.Qe1 e5 23.f5 b5 24.cxb5 Bxb5 25.Be2 Bc6 26.Bc4 Nxe4 27.Rxe4 d5 28.Rxe5 fxe5 29.Qxe5+ Kg8 30.Qe6+ Kh8 31.Qe5+ Kg8 32.Qe6+ Kh8 33.Qe5+ Kg8 34.Ne4 Rde8 35.Nc3 Rd8 36.fxg6 dxc4 37.Qe6+ Kh8 1/2-1/2
2013.10.12 7th Univ Cent Open 2013
3260534 IM Obregon Rivero, J (2526) FM Sanchez Enriquez, O (2397) 0-1
1.e4 e6 2.g3 d5 3.Bg2 c5 4.exd5 exd5 5.d4 Nc6 6.Ne2 Bg4 7.h3 Bh5 8.O-O cxd4 9.g4 Bg6 10.Nxd4 Nf6 11.c4 Nxd4 12.Qxd4 dxc4 13.Re1+ Be7 14.Qe5 Kf8 15.Bf4 Nd7 16.Qb5 Nc5 17.Rxe7 Qxe7 18.Nc3 Rd8 19.Nd5 Rxd5 20.Bxd5 h5 21.Be3 b6 22.Qc6 Ne6 23.Qc8+ Qe8 24.Qxc4 Kg8 25.Rd1 hxg4 26.hxg4 Qd8 27.Qf1 Qc7 28.f4 Rh4 29.Qf3 Qc2 30.Rd2 Qb1+ 31.Rd1 Qc2 32.Bb3 Qh2+ 33.Kf1 Rh3 34.Qf2 Qh1+ 35.Ke2 Qe4 36.Rd7 Qb4 37.Qg2 Qb5+ 38.Kf2 Rxe3 39.Qa8+ Nf8 40.Kxe3 Qxd7 41.f5 Bh7 42.Ke4 Qe7+ 43.Kf4 g6 44.Qd5 Nd7 45.Qa8+ Kg7 46.Qxa7 gxf5 47.gxf5 Qe5+ 48.Kf3 Qxf5+ 49.Ke2 Qe4+ 50.Kf2 Qd4+ 51.Ke1 Ne5 0-1
2013.10.11 7th Univ Cent Open 2013
3260335 Estrella Becerra, Fernando (2048) IM Obregon Rivero, J (2526) 0-1
1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d5 6.cxd5 Nxd5 7.Nc3 Nb6 8.d4 Nc6 9.e3 Re8 10.b3 e5 11.dxe5 Nxe5 12.Nxe5 Bxe5 13.Bb2 a5 14.Qe2 a4 15.Ne4 axb3 16.axb3 Rxa1 17.Rxa1 c6 18.Bxe5 Rxe5 19.Rd1 Qe7 20.Nd6 Be6 21.Qb2 f6 22.Qd4 Bxb3 23.Rb1 c5 24.Qd3 c4 25.Qd4 Re6 26.Nxb7 Kg7 27.Qc5 Qd7 28.Bh3 f5 29.Qd4+ Qxd4 30.exd4 Na4 31.Bf1 c3 32.Na5 Bd5 33.Bc4 Bxc4 34.Nxc4 Re4 35.Ne3 Rxd4 36.Rb7+ Kf6 37.Rxh7 g5 38.h4 Rd1+ 39.Kg2 f4 40.gxf4 gxf4 41.Nc2 Rd2 42.Nb4 Nb2 43.Kf3 Nd1 44.Ke4 Nxf2+ 45.Kxf4 Rd4+ 46.Ke3 Rxb4 47.Rc7 Rb2 48.h5 Nd1+ 49.Kf3 Rh2 50.Rd7 c2 51.Rc7 Nc3 0-1
2013.10.11 7th Univ Cent Open 2013
3260403 IM Obregon Rivero, J (2526) Martinez, Jor (2201) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O Qc7 7.Qe2 d6 8.c4 Nbd7 9.f4 h5 10.Nc3 Be7 11.Bd2 b6 12.b4 Bb7 13.Rae1 Rc8 14.f5 e5 15.Nc2 Qb8 16.Ne3 Kf8 17.Ned5 Bd8 18.h3 h4 19.Kh2 Qa8 20.Rc1 Rb8 21.Rfe1 Rg8 22.a4 Bc6 23.Nxf6 Bxf6 24.c5 dxc5 25.b5 Bb7 26.bxa6 Bc6 27.Bb5 Rd8 28.Red1 Nb8 29.Be3 Rd4 30.Bxd4 exd4 31.Bxc6 Be5+ 32.Kh1 Qxc6 33.a7 Nd7 34.Qb5 Qxb5 35.a8=Q+ Ke7 36.Qxg8 Qb2 37.Nd5+ Kd6 38.Qxf7 Kc6 39.Qe6+ Bd6 40.Qe8 Bb8 41.f6 Qf2 42.Nxb6 Kxb6 43.Qxd7 1-0
2013.10.10 7th Univ Cent Open 2013
3260178 FM Ramirez, Ca COL (2280) IM Obregon Rivero, J (2526) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 c5 7.d5 e6 8.O-O exd5 9.cxd5 Re8 10.Nd2 Na6 11.f3 Nc7 12.a4 b6 13.Nc4 Ba6 14.Bg5 h6 15.Bh4 Qd7 16.Qc2 Nh5 17.Rfe1 Nf4 18.Bf1 Bxc4 19.Bxc4 a6 20.Bf1 b5 21.Bf2 Reb8 22.Be3 g5 23.a5 Re8 24.Rad1 Ng6 25.b4 c4 26.Qd2 Re7 27.Ne2 f5 28.Bd4 f4 29.Bxg7 Rxg7 30.Nd4 Ne5 31.Be2 Ne8 32.Nf5 Rh7 33.g3 Ng6 34.Bf1 Ne5 35.Kg2 fxg3 36.hxg3 Ng7 37.Nd4 Rf8 38.Be2 Qf7 39.Rf1 Qg6 40.Qe3 h5 41.Ne6 Nxe6 42.dxe6 Qxe6 43.Qxg5+ Rg7 44.Qh4 Ng6 45.Qh2 d5 46.Kg1 dxe4 47.fxe4 Qxe4 48.Rxf8+ Nxf8 49.Bxh5 Qe3+ 50.Qf2 Rxg3+ 51.Kf1 Qxf2+ 52.Kxf2 Rb3 53.Rd6 Rxb4 54.Rxa6 Rb2+ 55.Ke3 c3 56.Rc6 b4 57.a6 Ra2 58.Bd1 Ra3 59.Kd4 Nd7 60.Rd6 b3 61.Kxc3 Nc5 62.Bxb3+ Kg7 63.Kb4 Rxa6 1/2-1/2
2013.10.10 7th Univ Cent Open 2013
3260257 IM Obregon Rivero, J (2526) IM Ostos, J (2295) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 b6 5.Qg4 Bf8 6.Bg5 Qd7 7.h4 h6 8.Be3 h5 9.Qd1 Ba6 10.Bxa6 Nxa6 11.Qe2 Nb4 12.a3 Nc6 13.Nf3 Nge7 14.O-O Nf5 15.Rfd1 Na5 16.b3 Be7 17.g3 Rc8 18.Na4 c5 19.dxc5 bxc5 20.Nb2 Qb7 21.Bg5 Bxg5 22.Nxg5 Nc6 23.Rac1 Ncd4 24.Qf1 f6 25.exf6 gxf6 26.Rxd4 Nxd4 27.Nh3 e5 28.Qd1 Kf7 29.Nd3 c4 30.bxc4 dxc4 31.Ng5+ Kg7 32.Nxe5 fxe5 33.c3 Nb3 34.Qd6 Rhe8 35.Re1 Qe7 36.Qd5 Nc5 37.Qf3 Qf6 38.Qxh5 Qg6 39.Qg4 Kh6 40.Rxe5 Rxe5 41.Qxc8 Qe8 42.Qc7 Re1+ 43.Kh2 Qe7 44.Qc8 Kg7 45.Qf5 Kh6 46.Nf7+ Kg7 47.Ng5 Kh6 48.Qc8 Kg7 49.Qf5 Kh6 50.Nf3 Re2 51.Qf4+ Kg7 52.Nd4 Re5 53.Nc6 Qd8 1-0
2013.05.01 48th Capablanca Open I 2013
3329075 GM Bruzon Batista, L (2707) IM Obregon Rivero, J (2501) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 Bg4 8.Be3 Qd7 9.Qa4 Bxf3 10.exf3 e5 11.d5 Nd4 12.Qxd7 Nxd7 13.Rac1 Nf5 14.Bd2 Bh6 15.Rfd1 Bxd2 16.Rxd2 Ne7 17.Bf1 f5 18.Be2 Rfc8 19.Bd1 Kf7 20.a3 Nf6 21.Kg2 a6 22.Bb3 Nd7 23.Ne2 Kf6 24.f4 Nc5 25.Bc2 a5 26.fxe5+ dxe5 27.Nc3 Rd8 28.b4 axb4 29.axb4 Na6 30.Rb1 Nb8 31.c5 e4 32.Bb3 Nbc6 33.Nb5 Nxb4 34.Nxc7 Rac8 35.Ne6 Rd7 36.d6 Nec6 37.Nf4 Ra8 38.Be6 Rdd8 39.Bd5 Ra7 40.h4 Nxd5 41.Nxd5+ Ke5 42.Ne7 Ke6 43.Nd5 Ne5 44.Nf4+ Kf6 45.Rdb2 Nd7 46.Rb5 Ra2 47.Nd5+ Ke6 48.Nf4+ Kf6 49.Rxb7 Nxc5 50.Rxh7 Rxd6 51.Rb8 Nd3 52.Rf8+ Ke5 53.Re8+ Kd4 54.Ne6+ Rxe6 55.Rxe6 Rxf2+ 56.Kg1 Rf3 57.Rh6 Ke3 58.Rh7 f4 59.h5 Rf2 60.gxf4 Kf3 1/2-1/2
2013.04.30 48th Capablanca Open I 2013
3329020 IM Obregon Rivero, J (2501) FM Leyva Rivera, Y (2408) 1-0
1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 d5 5.cxd5 Nxd5 6.g3 O-O 7.Bg2 Nc6 8.O-O Nb6 9.e3 Re8 10.Re1 a5 11.h3 a4 12.Qe2 Be6 13.Nd2 Ra5 14.Nce4 Qc8 15.Kh2 Bd5 16.f4 f5 17.Ng5 e6 18.Nb1 Bxg2 19.Qxg2 Qd7 20.Bd2 Raa8 21.Rc1 Rad8 22.Rc2 Bf6 23.Nf3 Nd5 24.Na3 Ra8 25.Rac1 Ra6 26.Qe2 Rd8 27.Qb5 Rb6 28.Qe2 Bg7 29.Nc4 Ra6 30.Be1 Rc8 31.a3 Nf6 32.Ncd2 Ne7 33.Ne5 Qd8 34.Qb5 Ned5 35.Bf2 Rca8 36.Qe2 Rb6 37.g4 Ne8 38.Ndc4 Rba6 39.Nd3 Rc6 40.Nde5 Rca6 41.Qe1 Nd6 42.Nd2 Rb6 43.g5 Raa6 44.Nd3 Qe8 45.Nc5 Ra8 46.Nf3 Rb5 47.Nd2 Rb6 48.Nd3 Rb8 49.Qe2 Ra6 50.Nf3 Ne4 51.Be1 Rb6 52.Bb4 Qb5 53.Nfe1 Ra8 54.Rc4 c6 55.R1c2 Qa6 56.Bd2 Qb5 57.Bc1 Bf8 58.Nc5 Nd6 59.Rxa4 Rxa4 60.Qxb5 Rxb5 61.Nxa4 Ra5 62.Nc5 Kf7 63.Ned3 Bg7 64.Kg1 1-0
2013.04.29 48th Capablanca Open I 2013
3328964 IM Obregon Rivero, J (2501) IM Fernandez Cardoso, A (2453) 1-0
1.c4 e5 2.Nc3 g6 3.d4 d6 4.Nf3 Bg7 5.g3 Nd7 6.Bg2 Ne7 7.O-O O-O 8.dxe5 dxe5 9.Qc2 h6 10.Rd1 f5 11.e4 g5 12.b3 f4 13.Ba3 c6 14.Rd6 Qe8 15.Rad1 fxg3 16.hxg3 Nb6 17.Rd8 Qf7 18.c5 Bg4 19.Rxf8+ Bxf8 20.Nxe5 Bxd1 21.Nxd1 Qe6 22.cxb6 axb6 23.Bb2 Rxa2 24.Bh3 Qxh3 25.Qc4+ Nd5 26.exd5 b5 27.Qd3 Qh5 28.d6 Ra8 29.d7 1-0
2013.04.28 48th Capablanca Open I 2013
3328908 GM Swinkels, R (2522) IM Obregon Rivero, J (2501) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.h3 e5 7.d5 Nh5 8.g3 Qe8 9.Be2 f5 10.exf5 gxf5 11.Nh4 Nf6 12.Qc2 Na6 13.Bd2 e4 14.Be3 Nb4 15.Qd2 Nd3+ 16.Bxd3 exd3 17.Kf1 b5 18.Qxd3 bxc4 19.Qxc4 Rb8 20.Kg2 f4 21.Bxf4 Nh5 22.Rae1 Qf7 23.Re4 Rxb2 24.Na4 Rd2 25.Nf3 Rxd5 26.Ng5 Qf5 27.Re7 Kh8 28.Rxc7 Nxf4+ 29.gxf4 h6 30.Nf7+ Kh7 31.Ne5 Rxe5 32.Rxc8 Rxc8 0-1
2013.04.27 48th Capablanca Open I 2013
3328858 IM Obregon Rivero, J (2501) FM Quesada Perez, Ya (2433) 1-0
1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.e4 Bc5 5.Nxe5 Nxe5 6.d4 Bb4 7.dxe5 Nxe4 8.Qd4 Nxc3 9.bxc3 Be7 10.Qg4 g6 11.Bh6 Bf8 12.Bg5 Be7 13.Bh6 Bf8 14.Qf4 Bxh6 15.Qxh6 Qe7 16.Be2 Qf8 17.Qe3 Qe7 18.Qh6 Qf8 19.Qg5 Qe7 20.Qf6 Qxf6 21.exf6 O-O 22.Kd2 d6 23.g4 Re8 24.g5 Re5 25.h4 h5 26.Rab1 Bf5 27.Rb5 Rae8 28.Bf3 Be4 29.Bxe4 Rxb5 30.cxb5 Rxe4 31.Kd3 Re5 32.c4 Kf8 33.f4 Re6 34.Rb1 Re8 35.Rb3 Ra8 36.Kd4 Rc8 37.Ra3 Ra8 38.Kd5 Kg8 39.Re3 a6 40.bxa6 Rxa6 41.Re8+ Kh7 42.Rf8 Ra5+ 43.Kd4 Rf5 44.Rxf7+ Kg8 45.Rg7+ Kf8 46.Ke4 Rc5 47.Rxg6 Rxc4+ 48.Kf5 1-0
2013.04.25 48th Capablanca Open I 2013
3328797 GM Morovic Fernandez, I (2560) IM Obregon Rivero, J (2501) 1-0
1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.c5 a5 7.a3 axb4 8.axb4 Rxa1 9.Bxa1 Nbd7 10.Nc3 e5 11.Be2 h6 12.O-O Be7 13.d4 exd4 14.Nxd4 Bh7 15.b5 Bxc5 16.bxc6 bxc6 17.Nxc6 Qb6 18.Nxd5 Qxc6 19.Bxf6 Be4 20.Nc3 Bxg2 21.Bb5 Qb7 22.Qxd7+ Qxd7 23.Bxd7+ Kxd7 24.Rd1+ Ke6 25.Bxg7 Rg8 26.Kxg2 Rxg7+ 27.Kf3 Rg5 28.Ra1 Rf5+ 29.Ke2 Bd6 30.Ra6 Kd7 31.h3 Rh5 32.Ra2 Ke8 33.Ne4 Be7 34.Ra8+ Kd7 35.Ra7+ Ke8 36.Ng3 Rxh3 37.Kf1 Bc5 38.Ra5 Bb6 39.Ra4 Bd8 40.Nf5 Kd7 41.Rd4+ Kc7 42.Nd6 Rh4 43.Rxh4 Bxh4 44.Nxf7 h5 45.Nh6 Kd7 46.Nf5 Bd8 47.Kg2 Bf6 48.Kh3 Ke6 49.Ng3 h4 50.Ne4 Bd8 51.Kg4 Ke5 52.Nd2 Kd5 53.Nf3 Ke4 54.Nxh4 Ba5 55.Nf5 Be1 56.Ng3+ Kd3 57.Kf3 Ba5 58.Ne2 Kd2 59.Nf4 Ke1 60.Nd3+ Kd2 61.Ne5 Bc7 62.Ke4 Ke2 63.f4 Bb6 64.Ng4 1-0
2013.04.24 48th Capablanca Open I 2013
3328740 IM Obregon Rivero, J (2501) IM Gonzalez de la Torre, S (2446) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8 9.Nc3 Ke8 10.h3 b6 11.b3 Ba6 12.Re1 Bb4 13.Bb2 Rd8 14.Re4 Bxc3 15.Bxc3 Bc8 16.g4 Ne7 17.e6 f6 18.g5 Rd5 19.gxf6 gxf6 20.Bxf6 Rg8+ 21.Kf1 Rf5 22.Bxe7 Rxf3 23.Bh4 Rxh3 24.Rd1 Rh1+ 25.Ke2 Rxd1 26.Kxd1 Rg6 27.e7 Rg4 28.Rxg4 Bxg4+ 29.Kd2 Bf5 30.b4 b5 31.c3 Be6 32.a3 c5 33.Kd3 cxb4 34.cxb4 c6 35.Kd4 Bd5 36.f4 Kd7 37.f5 Bb3 38.Ke5 Bf7 39.Kf6 Ke8 40.Bf2 Bc4 41.Bxa7 Bb3 42.Bc5 Bc4 43.Kg5 Bd3 44.Kf6 Bc4 45.Kg5 Bd3 46.f6 h6+ 47.Kxh6 Bc4 48.Kg6 Bf7+ 49.Kf5 Kd7 50.Ke5 Bg6 51.Bf2 Bf7 52.Bh4 Bg6 1/2-1/2
2013.04.23 48th Capablanca Open I 2013
3328688 IM Trent, L (2425) IM Obregon Rivero, J (2501) 0-1
1.e4 c5 2.Nf3 e6 3.g3 Nc6 4.Bg2 Nf6 5.Qe2 d5 6.exd5 Nxd5 7.O-O Be7 8.Rd1 Nd4 9.Nxd4 cxd4 10.c4 Nb4 11.d3 a5 12.Na3 O-O 13.Nb5 f6 14.a3 Na6 15.b3 Nc5 16.Qb2 e5 17.b4 axb4 18.axb4 Rxa1 19.Qxa1 Na6 20.Bd2 Nxb4 21.Bxb4 Bxb4 22.Na7 Bf5 23.Bxb7 Qb6 24.Bd5+ Be6 25.Nc6 Bxd5 26.cxd5 Bd6 27.Rb1 Qc5 28.Qa2 f5 29.Rd1 h6 30.Qc4 Qb6 31.Re1 Qc7 32.Kg2 f4 33.Qa4 f3+ 34.Kh1 Qd7 35.Rg1 Qh3 36.Qa6 Rf6 37.Qa8+ Kh7 38.Qe8 Rf8 39.Qe6 Qxe6 40.dxe6 Rc8 41.e7 Kg6 42.h4 Kf7 43.Rc1 Ke8 44.Kh2 Ra8 45.Re1 Ra2 46.Kg1 Re2 47.Kf1 Rd2 48.Nxe5 Bxe5 49.Rxe5 Rd1+ 50.Re1 Rxd3 51.g4 Rd2 52.Kg1 0-1
2013.04.22 48th Capablanca Open I 2013
3328635 IM Obregon Rivero, J (2501) FM Fernandez Hernandez, A (2368) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qb6 6.Nb3 Nc6 7.O-O Nf6 8.Be3 Qc7 9.f4 d6 10.c4 Nb4 11.Nc3 Nxd3 12.Qxd3 Be7 13.e5 Nd7 14.Bd4 dxe5 15.fxe5 O-O 16.Ne4 b6 17.Nf6+ Nxf6 18.exf6 gxf6 19.Rxf6 Rd8 20.Rh6 f5 21.Qe3 Rxd4 22.Qxd4 Bf8 23.Rh3 Ra7 24.Rd1 f4 25.Rh4 e5 26.Qd5+ Kh8 27.Rh5 Qg7 28.Qxe5 Qxe5 29.Rxe5 Kg7 30.Rd8 Bd7 31.Re4 f3 32.gxf3 Bf5 33.Re5 Be7 34.Re8 Kf6 35.R8xe7 Rxe7 36.Rxe7 Kxe7 37.Kf2 Kd6 38.Ke3 Bb1 39.a3 Bc2 40.Nd2 b5 41.Kd4 bxc4 42.Nxc4+ Ke6 43.b4 Bd1 44.f4 Ba4 45.Ne5 Kd6 46.f5 Bb5 47.Nc4+ Ke7 48.Nd2 Kf6 49.Ne4+ Ke7 50.f6+ Ke6 51.f7 Ke7 52.Nd6 1-0
2013.04.21 48th Capablanca Open I 2013
3328582 FM Rosabal, Y (2301) IM Obregon Rivero, J (2501) 0-1
1.e4 c5 2.Nf3 g6 3.g3 Bg7 4.Bg2 Nc6 5.O-O d6 6.c3 e5 7.Na3 Nge7 8.d4 cxd4 9.cxd4 exd4 10.Bf4 Bg4 11.Nc4 Bxf3 12.Qxf3 Ne5 13.Qb3 Nxc4 14.Qxc4 Qd7 15.Rac1 Nc6 16.Qd5 Rd8 17.Bg5 Rc8 18.f4 h6 19.Bh4 Rc7 20.a3 O-O 21.f5 Kh7 22.f6 Bh8 23.g4 Qxg4 24.Bg3 Rd7 25.Rf4 Qe2 26.Rf2 Qd3 27.Bf1 Qe3 28.Bf4 Qxf2+ 29.Kxf2 Bxf6 30.Bb5 Ne7 31.Qb3 Rdd8 32.Rc7 a6 33.Bd3 b5 34.Ra7 Nc6 35.Rxa6 Ne5 36.Bxe5 Bxe5 37.Ra7 Kg7 38.Qxb5 d5 39.Rd7 Rxd7 40.Qxd7 dxe4 41.Bxe4 Bxh2 42.Qxd4+ f6 43.Qd7+ Rf7 44.Qe6 f5 45.Kg2 Bf4 46.Bd5 Rc7 47.Kf3 Bh2 48.a4 h5 49.a5 Rc2 50.a6 Bg1 51.a7 Rf2+ 52.Kg3 h4+ 53.Kxh4 Kh6 0-1
2012.08.06 38th Badalona Open A
3428455 IM Lorenzo de la Riva, L (2444) FM Obregon Rivero, J (2497) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7 7.Qd2 h6 8.Bxf6 gxf6 9.f4 Nxd4 10.Qxd4 Qa5 11.O-O-O Rc8 12.Kb1 Qc5 13.Qd2 e6 14.Bd3 b5 15.f5 b4 16.Ne2 e5 17.c3 Rb8 18.cxb4 Qxb4 19.Qxb4 Rxb4 20.Nc3 Bc6 21.a3 Rb8 22.Bc4 Be7 23.Bd5 Bd7 24.Ka2 Rg8 25.g3 Kf8 26.b4 Kg7 27.Rc1 Rgc8 28.Nb1 Bd8 29.Nd2 Kf8 30.Rxc8 Rxc8 31.Kb2 Ke7 32.Rc1 Rxc1 33.Kxc1 Bb6 34.Kc2 Be3 35.Kd3 Bd4 36.Nb1 Bg1 37.h3 Bf2 38.g4 Bd4 39.Nc3 Be8 40.Kc4 Kd8 41.Kb3 Kc7 42.Ne2 Bf2 43.a4 Be1 44.Nc1 a6 45.Nd3 Bd2 46.Nb2 Be1 47.Nc4 Bf2 48.Na3 Bg1 49.Nb1 Bf2 50.Nc3 Be1 51.a5 Bd2 52.Bc4 Kb7 53.Nd5 Bg5 54.Ne7 Bh4 55.Nd5 Bg5 56.Nc3 Bd2 57.Kc2 Be1 58.Kd3 Bxc3 59.Kxc3 Bc6 60.Kd3 Bb5 61.Bxb5 axb5 62.Ke3 Kc6 63.Kf3 d5 64.exd5+ Kxd5 65.Kg3 Kc6 66.Kh4 Kb7 67.Kg3 Kc6 68.h4 Kd6 69.Kf3 Kc6 70.Ke4 Kd6 71.a6 Kc7 72.g5 fxg5 73.hxg5 hxg5 74.Kxe5 f6+ 75.Kxf6 g4 76.a7 Kb7 77.Ke5 g3 78.f6 g2 79.a8=Q+ Kxa8 80.f7 g1=Q 81.f8=Q+ Kb7 82.Qe7+ Kb6 1/2-1/2
2012.08.05 38th Badalona Open A
3432568 FM Obregon Rivero, J (2497) FM Kiewra, K (2364) 0-1
1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.Nc3 cxd4 5.Nxd4 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.h4 Rc8 11.Bb3 h5 12.O-O-O Ne5 13.Kb1 Re8 14.g4 hxg4 15.h5 Nxh5 16.Bh6 e6 17.Rdg1 Qf6 18.Bxg7 Kxg7 19.fxg4 Qf4 20.Qg2 Nf6 21.g5 Nfg4 22.Rf1 Qxg5 23.Nf3 Qe7 24.Nxe5 Nxe5 25.Qf2 a6 26.Qb6 Bc6 27.Rh2 Rh8 28.Rhf2 Rh4 29.Qd4 f5 30.exf5 Rxd4 31.f6+ Kf7 32.fxe7+ Kxe7 33.Rh2 d5 34.Re2 Nc4 35.Bxc4 dxc4 36.Rfe1 Rd6 37.Rh2 Rf8 38.a4 Rf7 39.a5 g5 40.Nd1 Rd4 41.Rh6 Re4 42.Rg1 Re5 43.Rg6 Bf3 44.Nc3 g4 45.b4 cxb3 46.cxb3 Rxa5 47.Re1 Rf6 48.Rg7+ Kd6 49.Ne4+ Bxe4+ 50.Rxe4 Rb5 51.Rexg4 Rxb3+ 52.Kc2 Rb5 53.Rd4+ Kc6 54.Rdd7 Rf2+ 55.Kc3 Rfb2 56.Rd8 R2b3+ 57.Kc2 R3b4 58.Kc3 a5 59.Rc8+ Kb6 60.Re8 Rc5+ 61.Kd3 e5 62.Ra8 e4+ 63.Kd2 a4 64.Re7 Rh5 65.Kc3 Rhb5 66.Kd2 Rc4 67.Re6+ Kc5 68.Rc8+ Kb4 69.Rxc4+ Kxc4 70.Rxe4+ Kb3 71.Kc1 Rh5 72.Re3+ Kb4 73.Re4+ Ka5 74.Kb1 b5 75.Re8 Rh2 76.Re3 Rh4 77.Re2 a3 78.Ka2 Ka4 79.Re8 Rh2+ 80.Kb1 b4 81.Re4 Rh3 82.Ka1 Kb3 83.Re1 Rd3 84.Rh1 Kc4 85.Rc1+ Rc3 86.Rh1 b3 87.Rh4+ Kb5 88.Kb1 Re3 89.Rh5+ Kc4 90.Rh1 Kc3 91.Rd1 Re2 92.Ka1 Re5 93.Rb1 Kc2 94.Rh1 Kd2 0-1
2012.08.04 38th Badalona Open A
3432562 FM Obregon Rivero, J (2497) FM Ruiz Sanchez, O (2418) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.Qd2 Nbd7 11.a4 Rc8 12.a5 Qc7 13.Rfc1 Qc6 14.Bf3 Rfe8 15.Nd5 Bxd5 16.exd5 Qc4 17.Qd1 Qb5 18.Qd3 Qb4 19.Bd2 Qh4 20.g3 Qh3 21.Bg2 Qh5 22.f3 e4 23.fxe4 Ne5 24.Qf1 Nc4 25.Bf3 Qg6 26.Ra4 Nxd2 27.Nxd2 Nd7 28.Nc4 Nc5 29.Rb4 Nxe4 30.Rxb7 Nxg3 31.hxg3 Qxg3+ 32.Bg2 Rxc4 33.Qxc4 Qe3+ 34.Kh2 Qh6+ 35.Bh3 Qd2+ 36.Bg2 Qh6+ 37.Kg3 Qe3+ 38.Bf3 g5 39.Rh1 Qe5+ 40.Kg2 f5 41.Rh5 Qf6 42.Qxa6 Kg7 43.Qd3 Qg6 44.Rh3 g4 45.Bxg4 1-0
2012.08.03 38th Badalona Open A
3432549 IM Arenas, D (2406) FM Obregon Rivero, J (2497) 1/2-1/2
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 d6 9.f3 Bd7 10.h4 Qa5 11.Qd2 Rfc8 12.O-O-O Ne5 13.Kb1 Nc4 14.Bxc4 Rxc4 15.Nb3 Qc7 16.g4 Rc8 17.e5 Ne8 18.Nd5 Qd8 19.exd6 Nxd6 20.c3 Nb5 21.Bh6 Bxh6 22.Qxh6 Qf8 23.Qg5 Re8 24.h5 h6 25.Qe5 g5 26.Ne3 Rc7 27.Rxd7 Nxc3+ 28.bxc3 Rxd7 29.Qe4 f6 30.Nc5 f5 31.Qc2 a5 32.Ka1 e6 33.Nb3 a4 34.Nd4 Qc5 35.gxf5 exf5 36.Nexf5 a3 37.Rc1 Kh8 38.Nb3 Qe5 39.Nfd4 Qf6 40.Qd2 Qf4 41.Re1 Rg8 42.Qe2 g4 43.fxg4 Qxg4 44.Qe5+ Qg7 45.Qc5 Qg3 46.Rc1 Qd6 47.Qf5 Qf6 48.Qc2 1/2-1/2
2012.08.02 38th Badalona Open A
3432543 FM Obregon Rivero, J (2497) FM Fernandez, Li (2367) 1-0
1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Be2 Bg7 6.c4 Nb6 7.exd6 cxd6 8.O-O O-O 9.Nc3 Bg4 10.b3 Nc6 11.Be3 d5 12.c5 Nc8 13.b4 a6 14.h3 Bxf3 15.Bxf3 e6 16.a4 N8e7 17.Rb1 Nf5 18.Ne2 Nh4 19.b5 axb5 20.axb5 Nxf3+ 21.gxf3 Na5 22.f4 Nc4 23.Ra1 Ra5 24.b6 Qa8 25.Rxa5 Qxa5 26.Qa1 Qb5 27.Rb1 Qd7 28.Qa2 e5 29.dxe5 Rc8 30.Kg2 Qf5 31.Ng3 Qe6 32.Bd4 Bf8 33.Rb5 Qe8 34.Qb3 Ra8 35.Ne4 Be7 36.Nd6 Qc6 37.Rb4 Ra3 38.Qd1 h5 39.Rb3 Ra2 40.Rg3 Kh7 41.Qb1 Re2 42.f5 Re4 43.Nxe4 dxe4 44.e6 h4 45.Rg4 Nd2 46.Qd1 e3+ 47.f3 Qb5 48.exf7 gxf5 49.Rg7+ Kh6 50.Qe1 f4 51.f8=Q 1-0
2012.08.01 38th Badalona Open A
3432535 FM Gomez Jurado, L (2250) FM Obregon Rivero, J (2497) 0-1
1.c4 Nf6 2.g3 g6 3.Bg2 d5 4.cxd5 Nxd5 5.Nc3 Nb6 6.d3 Bg7 7.Be3 Nc6 8.Qd2 Nd4 9.Nf3 e5 10.Rc1 h5 11.h4 Qe7 12.O-O c6 13.Ne4 Nd5 14.Bxd4 exd4 15.Rc4 Bg4 16.Nxd4 Nb6 17.Rb4 c5 18.Nxc5 Qxc5 19.Nb3 Qe7 20.a4 Be6 21.a5 Nd5 22.Rb5 Qd7 23.Rc5 O-O 24.d4 b6 25.Rcc1 Bh3 26.e4 Bxg2 27.Kxg2 Nf6 28.f3 Qb5 29.Qc3 Rab8 30.Rf2 Nd7 31.e5 Rfd8 32.f4 Nf8 33.axb6 Qd5+ 34.Qf3 Rxb6 35.Qxd5 Rxd5 36.Rc5 Rd8 37.Rf3 Ne6 38.Rc4 Bf8 39.Rd3 Rd5 40.Kf3 Rdb5 41.Nd2 Rxb2 42.Ne4 R6b3 43.Rxb3 Rxb3+ 0-1
2012.07.29 6th AD San Juan Open
3436707 FM Obregon Rivero, J (2485) IM Venkatesh, M (2506) 1/2-1/2
1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 e6 6.O-O Nge7 7.a3 d5 8.cxd5 exd5 9.d3 h6 10.Bd2 O-O 11.Rc1 b6 12.Na4 a5 13.Qb3 Ra6 14.e3 Bd7 15.Qc2 Ra8 16.Rfe1 Rc8 17.Qb3 Rb8 18.Qc2 Rc8 19.Qb3 Rb8 20.Qc2 Rc8 21.Qb3 Rb8 22.Qc2 Rc8 1/2-1/2
2012.07.28 6th AD San Juan Open
3436703 GM Ortiz Suarez, I (2562) FM Obregon Rivero, J (2485) 0-1
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 d6 9.f3 Bd7 10.Qd2 Qa5 11.O-O-O Rfc8 12.h4 Ne5 13.Kb1 Nc4 14.Bxc4 Rxc4 15.Nb3 Qe5 16.Bd4 Qe6 17.h5 a5 18.hxg6 fxg6 19.Nd5 a4 20.Bxf6 Bxf6 21.Qh6 Bg7 22.Qxh7+ Kf7 23.Rh4 Qe5 24.Rf4+ Bf5 25.Rxf5+ gxf5 26.Qh5+ Kf8 27.c3 axb3 28.Nb6 bxa2+ 29.Ka1 Qb5 30.Nxa8 Rxc3 31.Qxf5+ Qxf5 32.exf5 Rc6 33.Rd3 Ra6 34.Rb3 Rxa8 35.Rxb7 d5 36.g4 d4 37.Rb3 d3 0-1
2012.07.27 6th AD San Juan Open
3436701 FM Obregon Rivero, J (2485) FM Vila Dupla, A (2163) 1-0
1.c4 Nf6 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.Nf3 O-O 6.O-O d5 7.cxd5 Nxd5 8.Ng5 e6 9.h4 b6 10.Nxd5 exd5 11.d3 Bb7 12.h5 Qe7 13.hxg6 hxg6 14.Qa4 d4 15.Ne4 Bc6 16.Qb3 Qe6 17.Qxe6 fxe6 18.Bh3 Bd5 19.Ng5 e5 20.Be6+ Bxe6 21.Nxe6 Rf7 22.Kg2 Re7 23.Ng5 Nc6 24.Rh1 Nd8 25.Ne4 Nf7 26.Rh4 Re6 27.Bd2 Bf6 28.Rh3 Kg7 29.b4 cxb4 30.Bxb4 Rc8 31.a4 Be7 32.Bxe7 Rxe7 33.Rah1 Rc2 34.Kf3 Rec7 35.a5 Rc1 36.axb6 axb6 37.Rh7+ Kf8 38.Kg4 Rxh1 39.Rxh1 Rc2 40.Kf3 Rc6 41.Ra1 b5 42.Ra8+ Ke7 43.Rb8 Ke6 44.Rb7 Nd6 45.Nxd6 Rxd6 46.Ke4 Kf6 47.Rxb5 Re6 48.f3 Re7 49.Rb6+ 1-0
2012.07.08 14th Torredembarra Open
3445133 FM Obregon Rivero, J (2479) FM Pena Riasco, A (2233) 1/2-1/2
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 Nf6 5.Bd2 c6 6.Bc4 Bf5 7.Nd5 Qd8 8.Nxf6+ exf6 9.Ne2 Bd6 10.O-O O-O 11.Bf4 Bxf4 12.Nxf4 Nd7 13.c3 Nb6 14.Bd3 Bxd3 15.Nxd3 Re8 16.Nc5 Qc7 17.Re1 Nd5 18.Qd2 b6 19.Rxe8+ Rxe8 20.Re1 Rxe1+ 21.Qxe1 Kf8 22.Nd3 Qe7 23.Kf1 Ke8 24.Qe2 Qxe2+ 25.Kxe2 Kd7 26.c4 Nc7 27.Kd2 Ne8 28.Nf4 Nc7 29.Kd3 Ne8 30.Ne2 Nc7 31.Nc3 Kd6 32.a3 Ne6 33.g3 1/2-1/2
2012.07.07 14th Torredembarra Open
3445128 FM Obregon Rivero, J (2479) FM Farran Martos, F (2321) 1-0
1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.Nc3 c6 5.g3 dxc4 6.a4 Nbd7 7.Bg2 Bd6 8.Nd2 e5 9.Nxc4 Bc7 10.d5 cxd5 11.Nxd5 Nxd5 12.Qxd5 O-O 13.b3 Nb6 14.Qxd8 Rxd8 15.O-O Nxc4 16.bxc4 Be6 17.Be3 e4 18.Bxe4 Be5 19.Rab1 Rac8 20.c5 Bd4 21.Bxb7 Bxe3 22.Bxc8 Bxc5 23.Bxe6 fxe6 24.Rb5 Bd4 25.e3 Bf6 26.Rb7 a5 27.Ra7 Rd5 28.Rb1 h6 29.Rb5 Rd1+ 30.Kg2 Bc3 31.Rc5 Bb4 32.Rcc7 Ra1 33.Rxg7+ 1-0
2012.07.06 14th Torredembarra Open
3445123 GM Martinez Duany, L (2468) FM Obregon Rivero, J (2479) 1/2-1/2
1.Nf3 Nf6 2.c4 c5 3.g3 Nc6 4.Bg2 g6 5.O-O Bg7 6.d4 cxd4 7.Nxd4 O-O 8.Nc3 Qb6 9.Nc2 d6 10.b3 Be6 11.Rb1 Rfe8 12.h3 Rac8 13.Bb2 Qa5 14.e3 a6 15.a4 Qb6 16.Nd4 Bd7 17.Ba1 Nxd4 18.Qxd4 Qxd4 19.exd4 Rc7 20.g4 h6 21.Rbd1 Bc6 22.Rfe1 Bxg2 23.Kxg2 Kf8 24.f4 b6 25.Bb2 Rb7 26.Ba3 Rd8 27.Rd2 Kg8 28.Kf3 Bf8 29.h4 h5 30.g5 Ne8 1/2-1/2
2012.07.05 14th Torredembarra Open
3445118 GM Pogorelov, R (2408) FM Obregon Rivero, J (2479) 0-1
1.Nf3 d5 2.d4 Nf6 3.c4 dxc4 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.dxc5 Bxc5 8.Qxd8+ Kxd8 9.Nbd2 Ke7 10.Be2 Rd8 11.Nb3 Bd6 12.Bd2 b6 13.Bc3 Bb7 14.Nfd2 Nd5 15.Rac1 Nxc3 16.Rxc3 Be5 17.Rc2 Nd7 18.f4 Bd6 19.Bf3 Rac8 20.Rxc8 Bxc8 21.Nc4 Bc7 22.Nd4 Nb8 23.Rc1 Bd7 24.b4 b5 25.Ne5 Bd6 26.Nxd7 Rxd7 27.Rc8 Rd8 28.Rxd8 Kxd8 29.a3 Kc7 30.Be4 g6 31.g4 Nd7 32.Nc2 e5 33.f5 Nf6 34.Bf3 e4 35.Be2 g5 36.h3 Be5 37.a4 bxa4 38.Bxa6 Nd5 39.Bc4 Kd6 40.Kf2 Bb2 41.Ke2 f6 42.Kd2 a3 43.b5 Nb6 44.Ba2 Kc5 45.Ne1 Kxb5 46.Kc2 Nc4 47.Ng2 Kb4 48.Bb1 Be5 49.Ba2 Bg3 50.Bb1 Bd6 51.Ba2 Be5 52.Bb1 h6 53.Ba2 Bh2 54.Bb1 Bg1 55.Ba2 Bf2 56.Bb3 Nxe3+ 57.Nxe3 Bxe3 58.Bd5 Bd4 59.Bf7 Kc5 60.Kd2 Kd6 61.Ba2 Ke5 62.Bc4 0-1
2012.07.04 14th Torredembarra Open
3445113 FM Obregon Rivero, J (2479) IM Gonzalez Rodriguez, JA (2398) 1-0
1.d4 Nf6 2.g3 e6 3.Bg2 d5 4.c4 Nbd7 5.Nf3 c6 6.Nbd2 Bd6 7.O-O O-O 8.Qc2 Qe7 9.b3 e5 10.cxd5 cxd5 11.dxe5 Nxe5 12.Nd4 Bd7 13.Nf5 Bxf5 14.Qxf5 Rac8 15.a3 Rc7 16.Bh3 Ned7 17.Nf3 g6 18.Qd3 Nc5 19.Qd1 Nce4 20.Bb2 Nc3 21.Qd2 Qxe2 22.Bxc3 Qxf3 23.Bb2 Re8 24.Qg5 Nd7 25.Bg4 Ne5 26.Bxe5 1-0
2012.07.03 14th Torredembarra Open
3445108 FM Obregon Rivero, J (2479) Plasencia Martinez, V (2167) 1-0
1.d4 g6 2.Nf3 Nf6 3.c4 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nbd7 7.Nc3 e5 8.e3 c6 9.a4 Re8 10.a5 e4 11.Nd2 d5 12.f3 exf3 13.Qxf3 Qe7 14.cxd5 Nxd5 15.Nc4 Nxc3 16.bxc3 f5 17.a6 Nf6 18.Ba3 Qc7 19.Nd6 Re6 20.Rfb1 Rb8 21.axb7 Bxb7 22.Qe2 Kh8 23.Qa2 Nd5 24.Nxb7 Rxb7 25.Bxd5 cxd5 26.Qxd5 Reb6 27.Rxb6 Rxb6 28.Bc5 Rb7 29.Qe6 Qb8 30.Bb4 Rb6 31.Qd7 Rb7 32.Qc6 Rb6 33.Qf3 h5 34.Kg2 Re6 35.d5 Re4 36.Ra6 Kh7 37.Re6 Rxe6 38.dxe6 Qe5 39.e7 Kg8 40.Qa8+ Kf7 41.Qf8+ 1-0
2012.07.02 14th Torredembarra Open
3449139 Uran Bermudez, Oliver Kevin (2160) FM Obregon Rivero, J (2479) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.h3 g6 7.Bg5 Bg7 8.Bb5 Bd7 9.Bxc6 bxc6 10.Qd2 Qb6 11.Nb3 a5 12.e5 dxe5 13.Be3 Qc7 14.O-O-O O-O 15.Nc5 Rfd8 16.Qe2 Be8 17.Rxd8 Rxd8 18.Qa6 Nd5 19.Bd2 Nxc3 20.Bxc3 Qd6 21.b4 axb4 22.Nb7 Qd5 23.Nxd8 bxc3 24.Nb7 Qxg2 25.Rd1 Qxf2 26.Qc4 Qb6 27.Qb3 Qe3+ 28.Kb1 Qe2 29.Rg1 e4 30.a4 Bd4 31.Rg4 Bd7 32.Nd8 Qf1+ 33.Ka2 Bxg4 34.hxg4 e3 35.Qb8 Kg7 36.g5 Qc4+ 37.Kb1 e2 0-1
2012.07.01 14th Torredembarra Open
3449135 FM Obregon Rivero, J (2479) Margalef Guell, J (1983) 1-0
1.d4 Nf6 2.Nf3 d5 3.e3 g6 4.b4 Bg7 5.Bb2 O-O 6.c4 c6 7.Nbd2 Bg4 8.h3 Bxf3 9.Qxf3 Nbd7 10.g4 a5 11.b5 e6 12.h4 h5 13.gxh5 Nxh5 14.Be2 Qf6 15.Qh3 Kh7 16.Rg1 Rg8 17.Nf3 Bh6 18.Ng5+ Kh8 19.Rc1 Rac8 20.bxc6 bxc6 21.Bc3 Nf8 22.Bxa5 Ra8 23.Bc7 Bg7 24.cxd5 exd5 25.Bxh5 gxh5 26.Rxc6 Ne6 27.Be5 Qg6 28.Nxf7+ Qxf7 29.Rxe6 Bf6 30.Bxf6+ 1-0
2012.06.30 14th Torredembarra Open
3449130 Nieves Alarcon, J (1826) FM Obregon Rivero, J (2479) 0-1
1.d4 Nf6 2.e3 e6 3.Bd3 b6 4.Ne2 Bb7 5.O-O c5 6.c3 Qc7 7.f4 Qc6 8.Rf3 Qc7 9.Rf1 c4 10.Bc2 Rg8 11.Ng3 d5 12.Qe2 Nbd7 13.Nd2 O-O-O 14.e4 Nxe4 15.Ngxe4 dxe4 16.Bxe4 Bd5 17.Nf3 Nf6 18.Bc2 Bd6 19.Ng5 h6 20.Ne4 Nxe4 21.Bxe4 g6 22.Bxd5 exd5 23.Qf3 Qc6 24.f5 g5 25.h3 Rde8 26.Bd2 g4 27.hxg4 Re4 28.g5 hxg5 29.g3 Rh8 30.Qg2 Bxg3 31.Qxg3 Qh6 32.Kf2 Qh2+ 33.Qg2 Re2+ 0-1
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