WORLDBASE

WORLDBASE Players Koehler, G2

Stockfish
GameID: 0
FIDE Country B-Year Gender Standard Rapid Blitz
12909700 GER 1956 M 2181 0 2111
188 games
2026.04.23 World Senior Teams +65
2248767 CM Soderberg, P (2050) Koehler, G2 (2165) 0-1
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.O-O a6 5.Bxd7+ Bxd7 6.c3 g6 7.d4 Bg7 8.h3 Qc7 9.Re1 e5 10.a4 Nf6 11.Nbd2 Rd8 12.Nf1 O-O 13.Ng3 Rfe8 14.d5 Kh8 15.Bd2 Ng8 16.Qc1 Rf8 17.c4 b6 18.Ra3 Rb8 19.Nh2 Qc8 20.Rf1 Qe8 21.b3 Qe7 22.Ra2 f5 23.exf5 Bxf5 24.Bc3 Bd7 25.Ne4 Nh6 26.Bd2 Nf7 27.Bc3 Bf5 28.f3 Bh6 29.Bd2 Bxd2 30.Qxd2 Kg7 31.Qe3 Rbd8 32.Re1 Rde8 33.Nf1 Nh6 34.Nh2 Bc8 35.g4 Rf4 36.Kg2 Ref8 37.Nc3 Qd8 38.Ne2 R4f7 39.Nc3 Ng8 40.Rf2 Kh8 41.Ref1 g5 42.Ne4 h6 43.Kh1 Rf4 44.Ra1 Ne7 45.Nf1 Ng6 46.Nfg3 R4f7 47.Ne2 Rh7 48.Rh2 Qc7 49.Rf1 Bd7 50.Qc3 Kg8 51.Qd3 Nh4 52.Rhf2 Be8 53.Qe3 Bg6 54.N2g3 Rhf7 55.Kh2 Rb8 56.Kh1 b5 57.axb5 axb5 58.Ra1 bxc4 59.bxc4 Rbf8 60.Nd2 Rf4 61.Ne2 R4f6 62.Nc3 Qf7 63.Raf1 Rf4 64.Nb5 Qe7 65.Ne4 Bxe4 66.fxe4 Qf6 67.Rxf4 gxf4 68.Qf2 Ng6 69.Ra1 Ne7 70.Ra6 Nc8 71.Qf3 Kh7 72.Kg2 Rg8 73.Rc6 h5 74.Kf1 Qh4 75.Rc7+ Kh8 76.gxh5 Ne7 77.Nxd6 Rg3 78.Qf2 Qxh3+ 79.Ke2 Rg2 0-1
2026.04.22 World Senior Teams +65
2248739 Koehler, G2 (2165) FM Sibilio, M (2233) 1/2-1/2
1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nc6 5.Be3 Nf6 6.f3 e5 7.d5 Nd4 8.Nge2 Nxe2 9.Qxe2 Nh5 10.g3 O-O 11.Bg2 f5 12.exf5 gxf5 13.Bf2 a6 14.O-O Bd7 15.f4 Qe8 16.Bf3 Nf6 17.fxe5 dxe5 18.Bg2 Ng4 19.Bc5 Rf6 20.h3 Nh6 21.Kh2 e4 22.Be3 Nf7 23.Bd4 Ne5 24.Rad1 Qe7 25.b3 Re8 26.Qd2 Rg6 27.Ne2 Nd3 28.Qe3 Be5 29.Bxe5 Qxe5 30.Nf4 Nxf4 31.Qxf4 b6 32.Rde1 a5 33.Re3 c6 34.Rd1 Qxf4 35.gxf4 c5 36.a4 Kf7 37.Rg3 Reg8 38.Rxg6 Rxg6 39.Re1 Ke7 40.Bf1 Be8 41.Be2 Rg7 1/2-1/2
2026.04.21 World Senior Teams +65
2248707 IM Maryasin, B (2201) Koehler, G2 (2165) 0-1
1.e4 c6 2.d4 d5 3.e5 Bf5 4.h4 h5 5.Bd3 Bxd3 6.Qxd3 e6 7.Bg5 Qb6 8.Nc3 Qa6 9.Qh3 Ne7 10.Nge2 Nd7 11.O-O Qb6 12.b3 Nf5 13.Na4 Qa6 14.Rfe1 Be7 15.Nb2 Qb6 16.Bxe7 Kxe7 17.Rad1 Rag8 18.c4 g5 19.hxg5 Rxg5 20.Ng3 Nxg3 21.fxg3 Rg4 22.c5 Qb4 23.Rf1 Rxd4 24.Nd3 Qb5 25.Nf4 Rxd1 26.Qh4+ Ke8 27.Rxd1 Qxc5+ 28.Kh1 Qe7 29.Qh3 Nxe5 30.Re1 Ng4 0-1
2026.04.20 World Senior Teams +65
2242624 Koehler, G2 (2165) FM Schulz, M1 (2129) 1-0
1.c4 g6 2.Nc3 Bg7 3.g3 e5 4.Bg2 d6 5.d3 Nc6 6.e3 Nge7 7.Nge2 h5 8.h4 Bg4 9.Rb1 a5 10.a3 O-O 11.O-O Qd7 12.Kh2 Nd8 13.Nd5 a4 14.e4 Nxd5 15.cxd5 Qe7 16.f3 Bd7 17.Nc3 c5 18.dxc6 Bxc6 19.Bg5 f6 20.Be3 f5 21.Bg5 Bf6 22.f4 Bxg5 23.fxg5 f4 24.gxf4 Ne6 25.f5 gxf5 26.exf5 Bxg2 27.Kxg2 Nf4+ 28.Rxf4 exf4 29.Qxh5 Qe3 30.Qg6+ Kh8 31.Qh6+ Kg8 32.Qe6+ Qxe6 33.fxe6 Rae8 34.Re1 f3+ 35.Kf2 Kg7 36.e7 Rf7 37.Nd5 Kg6 38.Re6+ Kf5 39.Re4 b5 40.Kxf3 Rh7 41.Nf6 Rexe7 42.Nxh7 Rxh7 43.Rf4+ Ke5 44.Kg4 Rc7 45.Re4+ Kd5 46.g6 1-0
2026.04.19 World Senior Teams +65
2242600 Hymer, Barry (1986) Koehler, G2 (2165) 1-0
1.d4 Nf6 2.Nc3 e6 3.Bf4 d5 4.e3 Bb4 5.Ne2 O-O 6.a3 Be7 7.Ng3 c5 8.dxc5 Bxc5 9.Bd3 Nc6 10.O-O Bd6 11.Bxd6 Qxd6 12.e4 d4 13.Nb5 Qc5 14.b4 Qb6 15.Nd6 Ne5 16.Nc4 Nxc4 17.Bxc4 e5 18.Re1 Bg4 19.Qd3 Rac8 20.h3 Bd7 21.Bb3 Rc3 22.Qd1 g6 23.Rb1 Rfc8 24.a4 Be6 25.a5 Qd6 26.Ne2 R3c7 27.f4 Rd8 28.f5 Bxb3 29.Rxb3 Qc6 30.Rc3 Qd6 31.Rxc7 Qxc7 32.Ng3 Qc3 33.Kh2 d3 34.fxg6 fxg6 35.Rf1 Qxc2 36.Qa1 Nd7 37.Rc1 Qf2 38.Rf1 Qd2 39.Rd1 Qc2 40.Rc1 Qd2 41.Rd1 Qxb4 42.Qa2+ Kg7 43.Rxd3 Qe7 44.Qd5 b6 45.a6 Kf8 46.Qb7 Nc5 47.Rxd8+ Qxd8 48.Qxh7 Nxa6 49.Qh8+ Ke7 50.Qg7+ Ke6 51.Qxg6+ Qf6 52.Qe8+ Qe7 53.Qc8+ 1-0
2025.11.01 33rd World Senior 65+
2086727 FM Sokolowski, Ry (2058) Koehler, G2 (2142) 1-0
1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.g3 cxd4 5.Nxd4 Nc6 6.Bg2 Be7 7.O-O a6 8.Nc3 Qb6 9.Nc2 d6 10.b3 O-O 11.e4 Bd7 12.Bb2 Ne5 13.Ne3 Rfc8 14.Qe2 Rab8 15.Kh1 Qd8 16.f4 Ng6 17.Rad1 Qc7 18.g4 b5 19.g5 Ne8 20.f5 Ne5 21.fxe6 fxe6 22.Qf2 Qd8 23.Ng4 Nc7 24.Nxe5 dxe5 25.c5 Qe8 26.Ne2 Bc6 27.Bxe5 Bxg5 28.Qg3 Qh5 29.Bxc7 Rb7 30.Bf4 Qxe2 31.Qxg5 Bxe4 32.Rde1 Qxg2+ 33.Qxg2 Bxg2+ 34.Kxg2 Rxc5 35.Rxe6 h6 36.Rxa6 Rf7 37.Rf2 1-0
2025.10.31 33rd World Senior 65+
2086623 Koehler, G2 (2142) GM Pogorelov, R (2258) 0-1
1.c4 Nf6 2.Nc3 e6 3.Nf3 c5 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.d4 cxd4 8.Nxd4 Bxg2 9.Kxg2 Qc7 10.b3 a6 11.Bb2 Nc6 12.Nxc6 Qxc6+ 13.Kg1 b5 14.cxb5 axb5 15.Qd3 b4 16.Na4 O-O 17.Rac1 Qa6 18.Rfd1 Qxd3 19.Rxd3 d5 20.Rc7 Rfe8 21.Rd1 Kf8 22.Rdc1 Bd6 23.R7c6 Red8 24.Bd4 Ne8 25.R1c2 Rab8 26.Bb6 Rd7 27.Nc5 Re7 28.e4 f6 29.exd5 exd5 30.Nd3 Kf7 31.Bc5 Bxc5 32.R6xc5 Rd7 33.Nf4 d4 34.R5c4 d3 35.Rd2 Rbd8 36.Rxb4 g5 37.Ng2 f5 38.Ne3 Kg6 39.f3 Nf6 40.Kf2 Nd5 41.Rd4 f4 42.Nxd5 Rxd5 43.Rc4 Kf5 44.a4 h5 45.gxf4 gxf4 46.h4 Re8 47.Rc3 Re3 48.b4 Ke5 49.b5 Kd4 50.Rc8 Rde5 51.b6 Re2+ 52.Rxe2 Rxe2+ 53.Kf1 Rb2 54.Re8 Rxb6 55.Re1 d2 56.Ra1 Kd3 57.a5 Rc6 0-1
2025.10.30 33rd World Senior 65+
2086529 IM Roos, Louis1 (2285) Koehler, G2 (2142) 1/2-1/2
1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bf4 Nf6 5.c3 e6 6.Nf3 Nc6 7.Nbd2 Be7 8.Bd3 Nh5 9.Be3 Qc7 10.g3 g6 11.O-O O-O 12.Bh6 Re8 13.Re1 Bd7 14.a3 Bf6 15.Nf1 e5 16.dxe5 Nxe5 17.Nxe5 Bxe5 18.Be2 Ng7 19.Ne3 Nf5 20.Nxf5 Bxf5 21.Qxd5 Rad8 22.Qc4 Qb6 23.Qb5 Re6 24.Bc4 Qxb5 25.Bxb5 Bf6 26.Be3 a6 27.Bc4 Red6 28.Bf1 h5 29.a4 Bg4 30.Bg2 b5 31.h3 Be6 32.a5 b4 33.cxb4 Bxb2 34.Bc5 Bxa1 35.Bxd6 Bc3 36.Rc1 Rxd6 37.Rxc3 Rd1+ 38.Kh2 Rb1 39.Rc6 Rxb4 40.Rxa6 Rb2 41.Kg1 Rb1+ 42.Kh2 Rb2 43.Rb6 Rxf2 44.Kg1 Ra2 45.Rb5 Ra1+ 46.Kh2 Ra2 47.Rc5 Kg7 48.h4 Bg4 49.Kg1 Ra1+ 50.Kf2 Ra2+ 51.Kg1 1/2-1/2
2025.10.29 33rd World Senior 65+
2086452 Koehler, G2 (2142) Kowalczuk, W (2017) 1-0
1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.d4 d5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 Bb7 8.Bb5+ c6 9.Bd3 Be7 10.O-O Nd7 11.Re1 O-O 12.a4 c5 13.Qe2 Qc7 14.Bd2 Rfc8 15.h4 c4 16.Bc2 e5 17.Ng5 h6 18.Nf3 Re8 19.d5 Nf6 20.Nh2 Nh7 21.Qg4 Bc8 22.Qg3 Kh8 23.Nf3 Bf6 24.Reb1 Bd7 25.h5 Qd8 26.Bd1 a6 27.Be3 b5 28.Nh2 Bh4 29.Qf3 Rf8 30.Bc5 Be7 31.Bxe7 Qxe7 32.Qe3 Nf6 33.Nf1 Rfb8 34.axb5 axb5 35.Ng3 Qd6 36.Be2 Qc7 37.Qd2 Qc5 38.Ra2 Ra7 39.Rba1 Rba8 40.Rxa7 Rxa7 41.Qb2 Kh7 42.Rxa7 Qxa7 43.Qb4 Qa1+ 44.Kh2 Qe1 45.Qe7 Qxf2 46.Bf3 Bg4 47.Qxe5 Qd2 48.Ne2 Bd7 49.Qf4 Qxf4+ 50.Nxf4 Kg8 51.Kg3 Kf8 52.e5 Nh7 53.Kf2 Ke7 54.Ke3 Ng5 55.Kd4 Kd8 56.Kc5 Kc7 57.Ne2 Be8 58.Nd4 Kd8 59.Nf5 f6 60.e6 g6 61.hxg6 Bxg6 62.Nxh6 Be4 63.Nf7+ 1-0
2025.10.28 33rd World Senior 65+
2086374 Lebret, JM (2016) Koehler, G2 (2142) 0-1
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3 e5 7.Nh3 Nge7 8.O-O O-O 9.f4 Nd4 10.Kh1 Rb8 11.Qd2 b5 12.Rae1 b4 13.Nd1 exf4 14.Nxf4 Qa5 15.c3 bxc3 16.Nxc3 Qb6 17.Rf2 Bb7 18.Ref1 Bc6 19.Nh3 Bd7 20.Bg5 Ndc6 21.Bf6 Bxf6 22.Rxf6 Ne5 23.b3 Ng4 24.R6f4 Kg7 25.Bf3 Ne5 26.Rh4 Ng8 27.Bg2 f6 28.Nd5 Qd8 29.Rhf4 Bb5 30.Ng5 Qc8 31.Nxh7 Kxh7 32.Rh4+ Kg7 33.Nxf6 Rxf6 34.Rxf6 Nxf6 35.Qh6+ Kf7 36.Qf4 Qg8 37.Qg5 Bxd3 38.Rf4 Qg7 39.Rf2 Rb4 40.Qd2 Ke7 41.a3 Rxb3 42.Qa5 Rb1+ 43.Bf1 Rxf1+ 0-1
2025.10.26 33rd World Senior 65+
2080986 Koehler, G2 (2142) GM Ortega, Le (2333) 0-1
1.c4 e6 2.Nc3 d5 3.e3 Nf6 4.Nf3 c5 5.d4 a6 6.cxd5 exd5 7.Be2 Nc6 8.O-O c4 9.Ne5 Qc7 10.f4 Bb4 11.Bf3 Bxc3 12.bxc3 O-O 13.g4 Rd8 14.Qe2 b5 15.Qg2 Bb7 16.g5 Ne4 17.Bxe4 dxe4 18.Nxc6 Qxc6 19.Ba3 Rd5 20.h4 Re8 21.Rf2 Bc8 22.Qg3 Qg6 23.Bb4 Qh5 24.Rg2 Bf5 25.Kh2 Bd7 26.Rb1 Re6 27.Rf1 Re8 28.Rb1 Qf3 29.Rf2 Qh5 30.Rg2 h6 31.Kg1 Kh7 32.Kf2 Bf5 33.Rbg1 Re6 34.Ke1 Rg6 35.Qh2 Bd7 36.Ba5 Bf5 37.Kd2 Rd7 38.Kc1 f6 39.Kd2 fxg5 40.hxg5 Qxh2 41.Rxh2 Kg8 42.Rh5 hxg5 43.Rhxg5 Rxg5 44.fxg5 Kf7 45.Kc2 Kg6 46.Kb2 Be6 47.Ka3 Rf7 48.Bd8 Rf3 49.Re1 Rf2 50.Kb4 Rxa2 51.Kc5 Rd2 52.Ra1 Bc8 53.Kc6 b4 54.cxb4 c3 55.Rc1 Rd3 56.b5 axb5 57.Ba5 Rxe3 58.Bxc3 Rd3 59.d5 e3 60.d6 e2 0-1
2025.10.25 33rd World Senior 65+
2080892 FM Elguezabal Varela, D (2319) Koehler, G2 (2142) 1/2-1/2
1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 exd5 5.cxd5 d6 6.Nc3 a6 7.a4 g6 8.h3 Bg7 9.Bf4 O-O 10.e3 Qe7 11.Nd2 Nbd7 12.Nc4 Ne8 13.Be2 b6 14.O-O Rb8 15.Re1 Ne5 16.Na3 Nc7 17.e4 Bd7 18.Be3 f6 19.Nc2 Nf7 20.Qd2 b5 21.axb5 Nxb5 22.f3 Bc8 23.Nxb5 axb5 24.Bf4 Qb7 25.b4 c4 26.Be3 Ra8 27.Rxa8 Qxa8 28.Ra1 Qb8 29.Nd4 Bd7 30.Ne6 Re8 31.Nxg7 Kxg7 32.Bd4 g5 33.Ra7 Qd8 34.Qe3 Re7 35.Kh2 Ne5 36.g3 Qe8 37.f4 gxf4 38.gxf4 Ng6 39.Bf3 Nh4 40.Bh1 Ng6 41.Ra1 Rf7 42.Rg1 Kh8 43.Qg3 Qf8 44.Qg5 Kg8 45.Qh5 Rg7 46.Rf1 Rf7 47.Rf3 Kh8 48.Bg2 Qe7 49.Rf2 Qf8 50.Be3 Kg8 51.Bd4 Kh8 52.Bh1 Qe7 53.Qg5 Kg8 54.Qh5 Qf8 55.Bc3 Qe7 56.Bg2 Qf8 1/2-1/2
2025.10.24 33rd World Senior 65+
2080820 Koehler, G2 (2142) Sciupokas, A (1955) 1-0
1.c4 e5 2.g3 Nf6 3.Bg2 Nc6 4.Nc3 Bb4 5.Nd5 Bc5 6.e3 O-O 7.Ne2 Nxd5 8.cxd5 Nb4 9.d4 exd4 10.exd4 Be7 11.a3 Na6 12.O-O c6 13.Bf4 cxd5 14.Rc1 d6 15.Bxd5 Nc7 16.Bg2 Ne6 17.Be3 Bd7 18.Qd2 Rb8 19.b4 Re8 20.Nc3 Nc7 21.a4 b6 22.b5 Rc8 23.Qd3 d5 24.Nxd5 Nxd5 25.Bxd5 Bh3 26.Rxc8 Bxc8 27.Qb3 Rf8 28.Bg2 Qd6 29.Rc1 Bd7 30.d5 Rc8 31.Rxc8+ Bxc8 32.Qc3 Bd7 33.Bf4 Qg6 34.h3 Qb1+ 35.Kh2 g5 36.d6 Bd8 37.Be3 Qf5 38.Qd4 h5 39.Qd5 Qe6 40.Qa8 Qe8 41.Qxa7 h4 42.Bxb6 hxg3+ 43.fxg3 1-0
2025.10.23 33rd World Senior 65+
2080702 IM Mencinger, V (2259) Koehler, G2 (2142) 1-0
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Bd7 5.Nf3 Qb6 6.Bd3 Bb5 7.dxc5 Bxc5 8.b4 Bf8 9.a4 Bxd3 10.Qxd3 Nd7 11.O-O Ne7 12.Re1 Nf5 13.Nbd2 Qc7 14.Ba3 Nb6 15.a5 Nc4 16.Nxc4 dxc4 17.Qe4 Rc8 18.Rad1 Be7 19.Bc1 h5 20.h3 Qc6 21.Qf4 b5 22.Nd4 Nxd4 23.Qxd4 a6 24.Be3 Rd8 25.Qb6 Qc8 26.Bc5 Bxc5 27.bxc5 Rd5 28.c6 O-O 29.Rxd5 exd5 30.Rd1 Qe6 31.c7 Rc8 32.Qd6 b4 33.cxb4 c3 34.Rxd5 Rxc7 35.Qxc7 Qxd5 36.Qxc3 Qe4 37.g3 h4 38.gxh4 Qxh4 39.Qc8+ Kh7 40.Qg4 Qe7 41.Qe4+ g6 42.Kh2 Qg5 43.h4 Qd2 44.Kg2 Kg7 45.Qc4 Qb2 46.Qxa6 Qxe5 47.Qc4 1-0
2025.10.22 33rd World Senior 65+
2080645 Koehler, G2 (2142) Magnussen, P (1947) 1-0
1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.d3 Bb4 5.e4 O-O 6.a3 Bxc3+ 7.bxc3 h6 8.g3 Re8 9.Bg2 Nb8 10.O-O c6 11.Re1 Qc7 12.d4 d6 13.c5 dxc5 14.Nxe5 cxd4 15.cxd4 Qe7 16.a4 Nbd7 17.Ba3 Qe6 18.Nd3 Nf8 19.Nf4 Qd7 20.e5 Nd5 21.Nxd5 cxd5 22.Qb3 Ne6 23.Rad1 b5 24.Qxd5 Rb8 25.Qxd7 Bxd7 26.Bd6 Rbc8 27.d5 Nd8 28.axb5 Bxb5 29.Bh3 Rc2 30.Bf5 Re2 31.Rxe2 Bxe2 32.Rb1 1-0
2025.10.21 33rd World Senior 65+
2080563 Fiorentini, Mauro (1884) Koehler, G2 (2142) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qc7 8.Qf3 Nbd7 9.O-O-O b5 10.a3 Bb7 11.g4 Be7 12.Bxf6 gxf6 13.f5 e5 14.Nde2 Nb6 15.Nd5 Bxd5 16.exd5 Rc8 17.Nc3 Na4 18.Rd3 Nc5 19.Rd2 Bf8 20.Kb1 Bh6 21.Rf2 Qb6 22.b4 Nd7 23.Ne4 Ke7 24.c3 a5 25.Bd3 Ra8 26.Ra2 Rhc8 27.h4 Bf4 28.Re1 Ra7 29.Qf2 Qxf2 30.Nxf2 Rxc3 31.Bxb5 axb4 32.Nd3 bxa3 33.Nxf4 Rb3+ 34.Kc2 Rxb5 35.Nd3 Rc7+ 36.Kd2 Rxd5 37.Rxa3 Rd4 38.Rg1 e4 39.Re1 Ne5 0-1
2025.09.29 23rd ch-Euro Seniors +65
1875218 GM Ftacnik, L (2431) Koehler, G2 (2142) 1/2-1/2
1.d4 e6 2.c4 Nf6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Nbd2 O-O 7.O-O Be7 8.Qc2 c5 9.e4 cxd4 10.e5 Ne8 11.Ng5 Bxg5 12.Bxb7 Nc6 13.Bxa8 Qxa8 14.Nf3 Be7 15.Bf4 Nb4 16.Qd1 d3 17.a3 Nc2 18.Qxd3 Nxa1 19.Rxa1 h6 20.Qxd7 Bc5 21.b4 Bxb4 22.axb4 Qxf3 23.Qxa7 g5 24.Be3 Ng7 25.Bxb6 Nf5 26.Qa3 Qe4 27.Qc3 Rc8 28.Rc1 g4 29.b5 h5 30.Re1 Qb7 31.c5 Qd5 32.Qc1 Nd4 33.Qg5+ Kf8 34.Qh6+ Kg8 35.Qg5+ Kf8 36.Qh6+ Kg8 1/2-1/2
2025.02.26 World Senior Teams +65
161736 Koehler, G2 (2215) IM Giffard, N (2154) 0-1
1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 Qb6 6.Nb3 d5 7.cxd5 cxd5 8.Bg2 Bb4 9.O-O O-O 10.d3 Bxc3 11.bxc3 h6 12.Be3 Qa6 13.dxe4 dxe4 14.Nc5 Qc6 15.Qd4 Re8 16.Rfd1 b6 17.Nb3 Ba6 18.Qd2 Nbd7 19.Bd4 Rad8 20.Rac1 Qe6 21.Qc2 Rc8 22.Re1 Rc7 23.Nd2 Bb7 24.Qb3 Bd5 25.c4 Ba8 26.Qb2 h5 27.h3 Rec8 28.Red1 Ne8 29.Qb5 f5 30.Nf1 Nc5 31.Qb4 h4 32.Ne3 hxg3 33.fxg3 Rd7 34.Qb2 g6 35.Be5 Rcd8 36.Rxd7 Rxd7 37.Bf4 Qf6 38.Be5 Qe6 39.Bf4 Bc6 40.h4 Qf6 41.Be5 Qe6 42.Bf4 Ng7 43.Kf2 Nh5 44.Bg5 Qd6 45.Nf1 f4 46.g4 e3+ 47.Kg1 Bxg2 48.gxh5 Bb7 49.Qf6 Qxf6 50.Bxf6 gxh5 51.Be5 Ne6 52.Bb8 0-1
2025.02.25 World Senior Teams +65
161688 FM Ceschia, I (2205) Koehler, G2 (2215) 1-0
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Bd7 6.Bxc6 bxc6 7.O-O Qb6 8.Qd3 e5 9.Na3 Be6 10.Ng5 Nf6 11.Be3 Qc7 12.f4 Ng4 13.fxe5 Nxe3 14.Qxe3 Qb6 15.Qxb6 axb6 16.Nxe6 fxe6 17.exd6 Bxd6 18.Nc4 Bc7 19.Nd2 Ke7 20.Nf3 Rhf8 21.a3 Rf4 22.g3 Rf6 23.Rad1 c5 24.Kg2 h6 25.Rd3 Rd8 26.Rxd8 Bxd8 27.a4 Bc7 28.Nd2 Kd6 29.Rxf6 gxf6 30.Kf3 h5 31.h4 Ke5 32.c3 f5 33.Nc4+ Kf6 34.exf5 Kxf5 35.b4 cxb4 36.cxb4 e5 37.Ne3+ Ke6 38.Ke4 Bd6 39.a5 bxa5 40.bxa5 Bc5 41.a6 Kd6 42.Nc4+ Kc6 43.Nxe5+ Kb5 44.Nd3 Ba7 45.Nf4 Kxa6 46.Nxh5 Bf2 47.Kf3 Be1 48.Nf6 Bc3 49.Ne4 Bb2 50.Kf4 Kb6 51.Kf5 Kc6 52.Ke6 Kc7 53.h5 Bc1 54.g4 Kd8 55.Kf7 1-0
2025.02.24 World Senior Teams +65
161641 FM Bjerke, R (2037) Koehler, G2 (2215) 0-1
1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nf6 5.Nxf6+ exf6 6.Be3 Bd6 7.Bd3 Qb6 8.Qc1 Bg4 9.Ne2 Qc7 10.h3 Bf5 11.Qd2 Bxd3 12.Qxd3 O-O 13.O-O Nd7 14.Rad1 Rfe8 15.c4 Rad8 16.Qc2 Nf8 17.Qf5 Ng6 18.Nc3 Qe7 19.Rfe1 Bb8 20.a3 Qd6 21.g3 Qe6 22.Qxe6 fxe6 23.Kg2 Ne7 24.Bc1 Kf7 25.h4 h5 26.Re2 Nf5 27.d5 cxd5 28.cxd5 e5 29.Be3 Rc8 30.Kf3 Nd6 31.Ne4 b6 32.Nxd6+ Bxd6 33.Rc1 Rxc1 34.Bxc1 Rc8 35.Be3 Rc4 36.Re1 Ke7 37.Rc1 Rxc1 38.Bxc1 f5 39.Ke2 Bc5 40.f3 g6 41.Kd3 b5 42.g4 Kd6 43.gxh5 gxh5 44.a4 a6 45.axb5 axb5 46.b3 Kxd5 47.Bg5 Ke6 48.Bd2 Be7 49.Be1 Kd5 50.Bf2 Bb4 51.Be3 Ke6 52.Bf2 Ba5 53.Be3 f4 54.Bf2 Kd5 55.Ke2 e4 56.fxe4+ Kxe4 57.Bc5 Bd8 58.Bf2 Be7 59.Be1 Bc5 60.Ba5 f3+ 61.Kf1 Kd3 62.b4 Bd4 63.Bd8 Kc4 64.Be7 Bb6 65.Bf8 Bd4 66.Be7 Kd5 67.Bd8 Be5 68.Be7 Bg3 69.Bd8 Ke4 70.Bf6 Kf5 71.Be7 Kg4 0-1
2025.02.23 World Senior Teams +65
170592 Koehler, G2 (2215) FM Hammar, B (2100) 1-0
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.b4 a5 10.Ba3 Nd7 11.bxa5 h6 12.Nd2 Rxa5 13.Bb4 Ra8 14.Nb3 f5 15.f3 Nf6 16.Kh1 g5 17.c5 f4 18.Nb5 Ne8 19.Qd2 Ng6 20.cxd6 cxd6 21.Na5 Rf7 22.Nc4 Ra6 23.Ba5 b6 24.Bb4 Bf8 25.Rfc1 Ra8 26.Qb2 h5 27.Bf1 g4 28.Qf2 Rb8 29.Rc2 Rg7 30.Rac1 Ba6 31.Nd2 g3 32.Qg1 gxh2 33.Qxh2 Nh4 34.a4 Bxb5 35.axb5 Rg3 36.Nb1 Be7 37.Be1 Rg7 38.Qh3 Bf6 39.Bf2 Nc7 40.Rc6 Kh7 41.Rxb6 Rg3 42.Bxg3 Rxb6 43.Bf2 Nxb5 44.Bxb6 Qxb6 45.Qd7+ 1-0
2025.02.21 World Senior Teams +65
170540 Koehler, G2 (2215) IM Large, P (2314) 0-1
1.c4 Nf6 2.Nc3 e6 3.Nf3 b6 4.g3 c5 5.Bg2 Bb7 6.O-O Be7 7.b3 O-O 8.Bb2 a6 9.d4 cxd4 10.Qxd4 d6 11.Rfd1 Nbd7 12.Rac1 Qb8 13.e4 Rd8 14.Qe3 Bf8 15.Nd4 Re8 16.Qd2 Qc7 17.h3 Rac8 18.Nde2 Qb8 19.g4 h6 20.Qf4 Ne5 21.Qg3 b5 22.cxb5 axb5 23.a3 Ba8 24.f4 Ng6 25.Rd4 e5 26.Rb4 exf4 27.Nxf4 d5 0-1
2025.02.20 World Senior Teams +65
170497 Snape, I (2062) Koehler, G2 (2215) 1/2-1/2
1.Nf3 Nf6 2.c4 d6 3.d4 Nbd7 4.Nc3 e5 5.e4 Be7 6.Be2 O-O 7.O-O Re8 8.Qc2 c6 9.h3 g6 10.Rd1 Qc7 11.a3 a5 12.Be3 Bf8 13.b3 exd4 14.Nxd4 Nc5 15.Bf3 Bd7 16.b4 Ne6 17.Rac1 Rad8 18.Nb3 axb4 19.axb4 Bc8 20.Qa2 h6 21.Qd2 Kh7 22.Nd4 Bg7 23.Nd5 cxd5 24.cxd5 Qe7 25.dxe6 Bxe6 26.Nb5 Bb3 27.Re1 Qd7 28.Qd3 Ba4 29.Nc7 Re7 30.Bd4 Bc6 31.b5 Qxc7 32.bxc6 bxc6 33.Qc3 1/2-1/2
2025.02.19 World Senior Teams +65
170466 FM Raitza, O (2037) Koehler, G2 (2215) 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 Be6 9.f4 b5 10.f5 Bd7 11.Be3 Bc6 12.Bf3 Nbd7 13.Qe1 O-O 14.Rd1 Rc8 15.a3 Ba8 16.g4 h6 17.Qf2 Rxc3 18.bxc3 Nxe4 19.Bxe4 Bxe4 20.Qd2 Ba8 21.h4 Nf6 22.Qe2 Ne4 0-1
2025.02.18 World Senior Teams +65
170442 Koehler, G2 (2215) Winter, Kevin (1747) 1/2-1/2
1.c4 e5 2.g3 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.e3 Nge7 6.Nge2 O-O 7.O-O d6 8.d3 f5 9.Rb1 a5 10.a3 Bd7 11.b4 axb4 12.axb4 Qc8 13.Qb3 Kh8 14.Bd2 f4 15.exf4 Bh3 16.Nd5 Bxg2 17.Kxg2 exf4 18.Ndxf4 Nf5 19.c5 Ncd4 20.Qc4 Nxe2 21.Nxe2 dxc5 22.bxc5 Qd7 23.Bc3 Qc6+ 24.Qe4 Bxc3 25.Qxc6 bxc6 26.Nxc3 Ra3 27.Ne4 Rxd3 28.Rfd1 Rfd8 29.Rxd3 Rxd3 30.Rb7 Rd7 31.g4 Nd4 32.g5 Ne6 33.Kg3 Kg7 34.h4 h6 35.f3 hxg5 36.hxg5 Rd5 1/2-1/2
2025.02.17 World Senior Teams +65
177758 Koehler, G2 (2215) Vavruska, A (1926) 1/2-1/2
1.c4 e6 2.Nc3 f5 3.g3 Nf6 4.Bg2 d6 5.d4 Be7 6.Nh3 O-O 7.O-O c6 8.Re1 e5 9.b3 h6 10.Ba3 Qc7 11.Qd2 a5 12.Rad1 Na6 13.f3 Nb4 14.e3 Bd7 15.Bb2 Rad8 16.Nf2 Bc8 17.a3 Na6 18.Qc2 Nh7 19.Na4 Bf6 20.f4 e4 21.Bf1 b6 22.Rd2 Be7 23.Rc1 Nf6 24.Be2 Kh8 25.Kh1 Rfe8 26.Rg1 d5 27.Nc3 Qb7 28.cxd5 Nxd5 29.Nxd5 cxd5 30.g4 Bh4 31.Bb5 Bd7 32.Bxd7 Qxd7 33.Qd1 Bxf2 34.Rxf2 fxg4 35.Rxg4 Nc7 36.a4 Qf5 37.Rfg2 Ne6 38.Ba3 Rd7 39.Qe2 Nc7 40.Rg6 Re6 41.R6g3 Rc6 42.Rg1 Rf7 1/2-1/2
2023.11.05 31st World Senior 65+
755850 IM Pigott, J (2337) Koehler, G2 (2183) 1/2-1/2
1.d4 Nf6 2.c4 e6 3.g3 c5 4.Nf3 d5 5.cxd5 Nxd5 6.Bg2 Nc6 7.O-O Be7 8.Nc3 cxd4 9.Nxd5 exd5 10.Nxd4 O-O 11.Be3 Be6 12.Rc1 Qd7 13.Nxc6 bxc6 14.Bc5 Rfb8 15.Bxe7 Qxe7 16.b3 Bd7 17.Re1 f5 18.e3 a5 19.Re2 Kh8 20.Rb1 Rb5 21.Rd2 h6 22.Rd4 Rb4 23.Qd2 Rab8 24.Rc1 Qd6 25.Qc3 Rxd4 26.exd4 Qb4 27.h4 a4 28.bxa4 Qxa4 29.Rc2 f4 30.Kh2 fxg3+ 31.fxg3 Qb4 32.Qxb4 1/2-1/2
2023.11.04 31st World Senior 65+
755830 Koehler, G2 (2183) GM Balashov, Y (2390) 1/2-1/2
1.c4 e5 2.g3 d6 3.Bg2 f5 4.Nc3 Nf6 5.Nf3 Be7 6.d3 O-O 7.O-O Na6 8.Rb1 c6 9.b4 Nc7 10.b5 c5 11.a4 Rb8 12.Qb3 Ne6 13.Nd5 f4 14.e3 fxe3 15.Nxe7+ Qxe7 16.Bxe3 Qf7 17.Qd1 b6 18.Nh4 Bb7 19.a5 g6 20.axb6 axb6 21.Ra1 Bxg2 22.Nxg2 Qd7 23.Qe2 Rbe8 24.Qa2 Rf7 25.Qa6 Qd8 26.Qa2 d5 27.Qb2 d4 28.Bd2 e4 29.Qc2 exd3 30.Qxd3 Ng4 31.Rae1 Ng7 32.Bf4 Rxe1 33.Nxe1 Nh5 34.Ng2 Qa8 35.Qe2 Ngf6 36.Re1 Ng7 37.Bg5 Qb7 38.Nf4 Qd7 39.Bxf6 Rxf6 40.Nd5 Rf8 41.Nxb6 Qf7 42.Rf1 Re8 43.Qd3 Nf5 44.Nd5 Nd6 45.b6 Rf8 46.f4 Kg7 47.Re1 Qf5 48.Qxf5 gxf5 49.Nc7 Rb8 50.Rb1 Nxc4 51.b7 Na3 52.Rb3 c4 53.Rxa3 d3 54.Nd5 Rxb7 55.Ra2 Rb5 56.Nc3 Rb3 57.Nd5 c3 58.Nxc3 Rxc3 59.Ra7+ Kg6 60.Rd7 Rc1+ 61.Kf2 Rc2+ 62.Ke3 Rxh2 63.Rxd3 Kf6 1/2-1/2
2023.10.29 31st World Senior 65+
763298 IM Roos, Louis1 (2257) Koehler, G2 (2183) 1-0
1.d4 Nf6 2.Nf3 d6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.Re1 Nbd7 7.e4 e5 8.c3 Re8 9.Nbd2 Bf8 10.Qc2 c6 11.a4 a5 12.b3 Qc7 13.Ba3 d5 14.Bxf8 Kxf8 15.exd5 cxd5 16.dxe5 Nxe5 17.Nxe5 Rxe5 18.Rxe5 Qxe5 19.Nf3 Qh5 20.Qd3 Bg4 21.Qd4 Bxf3 22.Qxf6 Bxg2 23.Qh8+ Ke7 24.Qxa8 Be4 25.Qxb7+ Kf8 26.Qb8+ Kg7 27.Qf4 g5 28.g4 Qh6 29.Qe5+ Kf8 30.Re1 Qb6 31.Qd4 1-0
2023.10.28 31st World Senior 65+
763276 Koehler, G2 (2183) GM Jansa, Vl (2358) 1/2-1/2
1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 5.Nf3 e5 6.d3 Nge7 7.Nd2 d6 8.Nf1 Be6 9.Ne3 O-O 10.Ned5 Rb8 11.h4 h5 12.e3 a6 13.a4 Bg4 14.Qb3 Nxd5 15.Nxd5 Na5 16.Qc2 b5 17.axb5 axb5 18.Bd2 b4 19.O-O Nc6 20.Ra6 b3 21.Qb1 Ne7 22.Re1 Nxd5 23.Bxd5 Be6 24.Bxe6 fxe6 25.e4 Ra8 26.Qa1 Qc8 27.Rxa8 Qxa8 28.Qxa8 Rxa8 29.Bg5 Kf7 30.Kf1 Ra2 31.Rb1 d5 32.Ke2 d4 33.f3 Bf6 34.Bd2 Bd8 35.Kd1 Ba5 36.Bg5 Bb4 37.Bh6 Ba5 38.Bg5 Bc7 39.Bd2 Bd8 40.Bh6 Be7 41.Bd2 Kg7 42.Ke2 Bd8 43.Bc1 Be7 1/2-1/2
2023.09.28 World Senior Teams +65
800038 Kierzek, Ma (2165) Koehler, G2 (2189) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3 O-O 6.Be3 Nfd7 7.Nf3 e5 8.d5 a5 9.g4 Na6 10.Bd3 c6 11.a3 Nb6 12.Nd2 Bf6 13.Nb3 Bg5 14.Qd2 Bxe3 15.Qxe3 a4 16.Nd2 Nc5 17.Bc2 Kg7 18.O-O-O h6 19.Rdf1 Nbd7 20.h4 Nf6 21.f3 Bd7 22.g5 Nh5 23.Ne2 Qe7 24.f4 exf4 25.Nxf4 Nxf4 26.gxh6+ Kh7 27.Rxf4 cxd5 28.cxd5 Bb5 29.Nf3 Nd7 30.h5 Ne5 31.hxg6+ fxg6 32.Nxe5 Qxe5 33.Rxf8 Rxf8 34.Qb6 Rf1+ 35.Rxf1 Bxf1 36.Qxb7+ Kxh6 37.Qf7 Bb5 1/2-1/2
2023.09.27 World Senior Teams +65
799987 Koehler, G2 (2189) Santolini, L (2178) 1/2-1/2
1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.e3 c5 5.d4 Nc6 6.cxd5 exd5 7.Be2 cxd4 8.Nxd4 Bc5 9.O-O O-O 10.Nxc6 bxc6 11.b3 Qe7 12.Bb2 Bd6 13.Bf3 Rd8 14.Qd4 Be5 15.Qh4 Bb7 16.Na4 Bxb2 17.Nxb2 Ba6 18.Rfd1 Rac8 19.Qa4 Qb7 20.Rac1 Qb6 21.Qa3 Bb5 22.Nd3 Bxd3 23.Rxd3 Ne4 24.Bxe4 dxe4 25.Rdc3 Qb5 26.Rc4 Rd2 27.Qa4 Rcd8 28.Rf1 Qf5 29.Rcc1 a5 30.h3 h6 31.Qxc6 Rxa2 32.Qc5 Qxc5 33.Rxc5 Rdd2 34.Re5 Rdb2 35.Rxe4 Rxb3 36.Rd1 Rb7 37.Rf4 1/2-1/2
2023.09.26 World Senior Teams +65
799936 IM Giffard, N (2155) Koehler, G2 (2189) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Bg5 d6 5.Nf3 h6 6.Bh4 O-O 7.e3 g5 8.Bg3 Nh5 9.Nd2 Nxg3 10.hxg3 c5 11.dxc5 dxc5 12.Qc2 Nc6 13.a3 Qa5 14.Nb3 Qc7 15.Nd5 Qe5 16.O-O-O Bf5 17.Bd3 Bxd3 18.Rxd3 e6 19.f4 Qf5 20.Nc3 Qg4 21.Qe2 Qxe2 22.Nxe2 b6 23.g4 Rfd8 24.Rhd1 Rxd3 25.Rxd3 Rd8 26.Rxd8+ Nxd8 27.Nd2 1/2-1/2
2023.09.24 World Senior Teams +65
808208 IM Petran, Pe (2190) Koehler, G2 (2189) 1/2-1/2
1.d4 Nf6 2.g3 d5 3.Bg2 g6 4.Nf3 Bg7 5.O-O O-O 6.c4 c6 7.b3 dxc4 8.bxc4 c5 9.e3 Nc6 10.Bb2 Qb6 11.Qb3 Na5 12.Qxb6 axb6 13.Nbd2 Bf5 14.Ne5 Ng4 15.Nef3 Nc6 16.h3 Nf6 17.Ne5 Nxe5 18.dxe5 Rfd8 19.Nb3 Nd7 20.f4 Nf8 21.Rfc1 Ra4 22.Bxb7 Bxh3 23.Bc6 Ra7 24.a4 Bg4 25.Kf2 h5 26.Bc3 f6 27.exf6 Bxf6 28.Bxf6 exf6 29.Bd5+ Kg7 30.a5 bxa5 31.Rxa5 Rxa5 32.Nxa5 Nd7 33.Rb1 Rb8 34.Rb7 Rxb7 35.Nxb7 Kf8 36.e4 Ke7 37.Ke3 1/2-1/2
2023.09.23 World Senior Teams +65
808157 Koehler, G2 (2189) FM Peretz, M (2154) 0-1
1.c4 c5 2.g3 Nc6 3.Bg2 Nf6 4.Nc3 g6 5.a3 Bg7 6.Rb1 O-O 7.b4 d6 8.d3 Be6 9.bxc5 Nd7 10.Bd2 Nxc5 11.Nf3 Rc8 12.h4 Bg4 13.Qc1 Qd7 14.O-O Bxf3 15.Bxf3 Nd4 16.Bg2 Ncb3 17.Qd1 Nxd2 18.Qxd2 b6 19.e3 Nc6 20.Nd5 e6 21.Nf4 Ne5 22.Rb5 d5 23.Rb4 dxc4 24.d4 c3 25.Qc2 Nc6 26.Rc4 e5 27.d5 Na5 28.Rxc8 Rxc8 29.Ne2 Qd6 30.Rd1 Bf8 31.Rd3 Qxa3 32.Rxc3 Rxc3 33.Nxc3 Qc5 34.Qd2 Nc4 35.Qd3 Nd6 36.Ne4 Nxe4 37.Qxe4 Bd6 38.Qa4 b5 39.Qa5 b4 40.Qa4 Kg7 41.Bf3 Qc1+ 42.Kg2 Qa3 43.Bd1 Qxa4 44.Bxa4 a5 45.Kf3 f5 46.Ke2 e4 47.Kd2 Kf6 48.Kc2 Ke5 49.Bc6 b3+ 50.Kxb3 Bb4 51.Kc4 Be1 52.Be8 Bxf2 53.Kc5 Bxg3 54.h5 gxh5 55.Bxh5 Bh4 56.d6 Bg5 0-1
2023.09.22 World Senior Teams +65
808105 IM Povah, N (2229) Koehler, G2 (2189) 1/2-1/2
1.d4 Nf6 2.Bg5 c5 3.d5 d6 4.Nc3 h6 5.Bxf6 exf6 6.e4 a6 7.a4 g6 8.Bd3 Bg7 9.h3 Nd7 10.f4 f5 11.Nf3 Bxc3+ 12.bxc3 fxe4 13.Bxe4 O-O 14.O-O Nf6 15.Nd2 Bd7 16.c4 b5 17.axb5 axb5 18.cxb5 Bxb5 19.Re1 Re8 20.Bf3 Rxa1 21.Qxa1 Rxe1+ 22.Qxe1 Qa5 23.Qe3 Qa1+ 24.Kh2 Qc1 25.Nc4 Qxe3 26.Nxe3 Nd7 27.Kg1 Kf8 1/2-1/2
2023.09.21 World Senior Teams +65
808053 Koehler, G2 (2189) Trajkovski, M (1947) 1-0
1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nc3 Nc6 5.a3 Nf6 6.Rb1 O-O 7.b4 d6 8.d3 Nd7 9.Bd2 a5 10.bxc5 Nxc5 11.a4 Nb4 12.Nb5 Bf5 13.Nf3 Nbxd3+ 14.exd3 Nxd3+ 15.Kf1 Nb2 16.Rxb2 Bxb2 17.Qb3 Bg7 18.Nfd4 Bc8 19.h4 h5 20.Bf3 Rb8 21.Kg2 Bd7 22.Re1 e5 23.Nc2 Bc6 24.Ne3 Qd7 25.Nd5 Bxd5 26.Bxd5 b6 27.Qa3 Kh7 28.Qxd6 Qxd6 29.Nxd6 f6 30.Be3 Bh6 31.Bxh6 Kxh6 32.Rb1 Kg7 33.Nb7 Rfe8 34.Rxb6 f5 35.Rb5 e4 36.Nxa5 Rxb5 37.axb5 e3 38.fxe3 Rxe3 39.b6 Re2+ 40.Kf3 Rb2 41.b7 Kf6 42.Ke3 Rb6 43.c5 Rb5 44.c6 1-0
2023.09.20 World Senior Teams +65
808001 Kivimaki, Ja (2172) Koehler, G2 (2189) 1/2-1/2
1.d4 Nf6 2.Nf3 g6 3.b4 Bg7 4.e3 O-O 5.a4 a5 6.b5 d6 7.c3 e5 8.Be2 e4 9.Nfd2 Re8 10.h3 Nbd7 11.Bb2 Nf8 12.Qc2 Qe7 13.c4 h5 14.Nc3 Bf5 15.Nd5 Nxd5 16.cxd5 Qd7 17.Rc1 Re7 18.b6 Rc8 19.bxc7 Rxc7 20.Qxc7 Qxc7 21.Rxc7 Rxc7 22.Bc4 Bd7 23.Bb3 b5 24.Ke2 f5 25.Rc1 Rxc1 26.Bxc1 bxa4 27.Ba2 Bf6 28.Ba3 Be7 29.Nc4 Bb5 30.Ke1 Bxc4 31.Bxc4 Nd7 32.Kd2 1/2-1/2
2023.09.19 World Senior Teams +65
807949 Koehler, G2 (2189) Binder, B (1846) 1-0
1.c4 Nc6 2.g3 e5 3.Bg2 Nf6 4.Nc3 Bb4 5.Nd5 Be7 6.d3 Nxd5 7.cxd5 Bb4+ 8.Bd2 Bxd2+ 9.Qxd2 Ne7 10.Qc3 Ng6 11.Nf3 d6 12.Rc1 Ne7 13.Nd2 f5 14.Qxc7 Qxc7 15.Rxc7 Kd8 16.Rc2 Bd7 17.Nc4 Nc8 18.Na5 Rb8 19.Kd2 b6 20.Nc6+ Bxc6 21.Rxc6 Kd7 22.Rhc1 Rb7 23.e4 g6 24.Ke3 Ne7 25.Bf3 Rc8 26.Rxc8 Nxc8 27.Bd1 Rc7 28.Ba4+ Kd8 29.Bc6 Ne7 30.f4 exf4+ 31.gxf4 h6 32.h4 h5 33.Rc3 Ng8 34.e5 Ke7 35.Kd4 Nh6 36.Rc1 Ng4 37.Re1 dxe5+ 38.fxe5 Kf7 39.b4 Kf8 40.b5 Kf7 41.d6 1-0
2023.06.03 ECU Senior +65 2023
936868 WFM Kierzek, Mi (1955) Koehler, G2 (2205) 0-1
1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.Qc2 c5 6.Bg2 Bb7 7.dxc5 Bxc5 8.O-O O-O 9.Nc3 Be7 10.a3 d6 11.Rd1 a6 12.e4 Qc7 13.Qe2 Nbd7 14.Bf4 Ne5 15.Nxe5 dxe5 16.Bg5 Rac8 17.Bxf6 Bxf6 18.Bf1 Rfd8 19.Rxd8+ Rxd8 20.Rd1 Rd4 21.Kg2 g6 22.f3 Bg7 23.Qe3 Qd8 24.Be2 h5 25.Kh3 Kh7 26.Rxd4 exd4 27.Qd3 Qe8 28.Nd1 e5 29.Nf2 Bh6 30.Qb3 Qe6+ 31.Kg2 Bc8 32.h3 Be3 33.g4 Bxf2 34.Kxf2 Qf6 35.Kg2 h4 36.Kf2 Qf4 37.Bf1 Qg3+ 38.Ke2 Be6 39.Qc2 Qh2+ 40.Kd1 Qxc2+ 41.Kxc2 Kh6 42.b4 Kg5 43.c5 bxc5 44.bxc5 Kf4 45.Bxa6 Kg3 46.Bf1 Kf2 47.Bd3 Kg2 48.c6 Kxh3 49.c7 Kg3 0-1
2023.06.02 ECU Senior +65 2023
936841 Koehler, G2 (2205) FM Van Hoolandt, P (2035) 1/2-1/2
1.c4 Nf6 2.Nc3 e5 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O e4 7.Nd4 Nc6 8.Nc2 Bxc3 9.dxc3 h6 10.Ne3 d6 11.b3 a5 12.a4 b6 13.Qc2 Qe7 14.Rd1 Bd7 15.Nd5 Nxd5 16.cxd5 Nb8 17.Rd4 Bf5 18.Be3 Nd7 19.h3 Nf6 20.Kh2 Bg6 21.Qd2 Nd7 22.Qd1 f5 23.Qc2 Bh7 24.Re1 Qf7 25.Qd1 Nf6 26.Qd2 Re5 27.Rd1 g5 28.c4 Rae8 29.Qc3 f4 30.Bc1 Bg6 31.e3 fxg3+ 32.fxg3 Nd7 33.Bb2 Kh7 34.Rf1 Qg8 35.Rd2 Rf8 36.Rdf2 Rxf2 37.Rxf2 Nc5 38.Qc2 Re8 39.Ba1 Nd3 40.Rf6 Rf8 41.Qc3 Ne5 42.Re6 Re8 43.Rxe8 Qxe8 44.Qc2 Nd3 45.Qc3 Ne5 46.Qd4 Qf8 47.Kg1 Nd3 48.Bxe4 Qf2+ 49.Kh1 Qf1+ 50.Kh2 Qf2+ 51.Kh1 1/2-1/2
2023.06.01 ECU Senior +65 2023
936814 Iudicello, G (2081) Koehler, G2 (2205) 1-0
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.d3 O-O 5.O-O d6 6.e4 c5 7.Nc3 Nc6 8.Bd2 e5 9.Qc1 Rb8 10.Bh6 b5 11.Bxg7 Kxg7 12.Qd2 b4 13.Nd1 Ng8 14.Nh4 a5 15.f4 f6 16.Ne3 Be6 17.f5 Bf7 18.fxg6 hxg6 19.Rf2 Be6 20.Raf1 Qd7 21.Qd1 Nce7 22.g4 Nh6 23.h3 a4 24.b3 Rbd8 25.Qf3 g5 26.Nhf5+ Nhxf5 27.gxf5 Bf7 28.h4 g4 29.Nxg4 Bh5 30.Qg3 Kh8 31.Nxf6 Rxf6 32.Qg5 Ng8 33.Qxh5+ Rh6 34.Qg5 Rf8 35.f6 Rf7 36.Rf3 axb3 37.axb3 Qd8 38.Rg3 Rfxf6 39.Qg7# 1-0
2023.05.31 ECU Senior +65 2023
936784 Koehler, G2 (2205) Polster, W (2189) 0-1
1.c4 e5 2.g3 Nf6 3.Bg2 h6 4.Nc3 Bb4 5.Nf3 e4 6.Nd4 Bxc3 7.dxc3 O-O 8.O-O c6 9.Bf4 d5 10.cxd5 cxd5 11.Qb3 Nc6 12.Rad1 Bg4 13.f3 Na5 14.Qc2 exf3 15.exf3 Bd7 16.Rfe1 Re8 17.Bf1 Qb6 18.Kg2 Rac8 19.Qf2 Nc4 20.Bc1 Ne5 21.Qc2 Qa5 22.Qb1 a6 23.Nb3 Qa4 24.Nd4 Qa5 25.Bf4 Nc4 26.Bc1 Qb6 27.b3 Ne5 28.Bb2 h5 29.h4 Qc7 30.Qc1 Re7 31.Qf4 Ree8 32.Rd2 Nh7 33.Nf5 f6 34.Ne3 Qa5 35.a3 Bc6 36.Nf5 Rcd8 37.Nd4 Kf7 38.Qf5 g6 39.Qc2 Nf8 40.Rde2 Bd7 41.Re3 Qb6 42.c4 Rc8 43.f4 Ng4 44.Rxe8 Rxe8 45.Rxe8 Bxe8 46.Qd2 Bc6 47.Nxc6 bxc6 48.c5 Qxb3 49.Bxa6 Ne6 50.Be2 Nxc5 51.Qc3 Qxc3 52.Bxc3 Na4 53.Bd2 Ke6 54.Bd1 Nb2 55.Bc2 Nc4 0-1
2023.05.30 ECU Senior +65 2023
936761 IM Rooze, J (2268) Koehler, G2 (2205) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.Bb5+ Nd7 4.Ba4 Nf6 5.O-O e6 6.d3 Be7 7.c4 O-O 8.Nc3 Ne5 9.Ne1 Qc7 10.f4 Nc6 11.g4 Nd4 12.g5 Ne8 13.Ne2 Nxe2+ 14.Qxe2 g6 15.Ng2 Ng7 16.Ne3 f5 17.gxf6 Bxf6 18.Ng4 Bd4+ 19.Be3 Bxe3+ 20.Nxe3 b6 21.Rf2 Bb7 22.Raf1 Rad8 23.Qg4 Kh8 24.Qg5 d5 25.Bc2 dxe4 26.dxe4 Rd4 27.Qe5 Qxe5 28.fxe5 Rxf2 29.Rxf2 Nh5 30.Nd5 Kg8 31.Nc3 Bc6 32.b3 Kg7 33.Ne2 Rd2 34.Nf4 Rxf2 35.Nxe6+ Kf7 36.Ng5+ Ke7 37.Kxf2 h6 38.Nf3 g5 39.Ke3 Bd7 40.Ng1 Nf4 41.Bd1 Ng6 42.Ne2 Nxe5 43.Nc3 Bc6 44.Be2 Kf6 45.Bh5 Ke6 46.Ne2 Kf6 47.Nc3 Nf7 48.Nd1 1/2-1/2
2023.05.29 ECU Senior +65 2023
936741 Koehler, G2 (2205) Gnirenko, Vitaliy 1-0
1.c4 e6 2.Nc3 f5 3.g3 Nf6 4.Bg2 Bb4 5.Qc2 O-O 6.a3 Bxc3 7.Qxc3 d6 8.Nf3 e5 9.d3 Nc6 10.O-O Qe8 11.b4 Qh5 12.b5 Nd8 13.c5 Ne6 14.a4 e4 15.Nd4 Nxc5 16.Nb3 Nxb3 17.Qxb3+ Qf7 18.Qc2 Qe7 19.Bg5 d5 20.Rac1 Rf7 21.Bf4 Ne8 22.Qc5 Be6 23.Rc2 Qxc5 24.Rxc5 Rc8 25.Rfc1 Rd7 26.f3 exd3 27.exd3 d4 28.Be5 b6 29.R5c2 Bd5 30.f4 Bxg2 31.Kxg2 Kf7 32.Kf3 g6 33.Rc6 Ng7 34.Bxc7 Ne6 35.Be5 Rcd8 36.Ke2 Nc5 37.Rc4 Nb7 38.Rc7 Na5 39.Rxd4 Rxc7 40.Rxd8 Re7 41.d4 Nc4 42.Kd3 Na5 43.h3 Nb7 44.Ra8 Ke6 45.Rxa7 Kd5 46.Ra8 Rd7 47.Rc8 Na5 48.Bc7 Nc4 49.a5 bxa5 50.b6 Nd6 51.Bxd6 Kxd6 52.Kc4 Re7 53.Rc5 a4 54.Re5 Rb7 55.Kb5 a3 56.Re3 a2 57.Ra3 Kd5 58.Rxa2 Kxd4 59.Kc6 Rf7 60.b7 Rf6+ 61.Kb5 1-0
2023.05.28 ECU Senior +65 2023
944250 IM Biro, S (2089) Koehler, G2 (2205) 1/2-1/2
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 a5 6.a4 d6 7.d4 Nbd7 8.O-O e5 9.dxe5 Ng4 10.Nc3 Ngxe5 11.Nd4 Nc5 12.e4 Bd7 13.Nd5 Nc6 14.Nxc6 Bxc6 15.Bxg7 Kxg7 16.Qd4+ f6 17.f4 Bxd5 18.Qxd5 Qe7 19.Rae1 Rae8 20.h4 h6 21.Bf3 Kh7 22.Re2 Qf7 23.Qd2 b6 24.Rfe1 Re7 25.h5 Rfe8 26.Qd1 g5 27.Bg4 Kg7 28.fxg5 hxg5 29.h6+ Kh8 30.Qd4 Re5 31.Bf5 Qe7 32.Bg6 Rg8 33.Bf5 Qf7 34.Re3 Rge8 35.c4 Qh5 36.g4 Qf7 37.Rf1 Ne6 38.Qc3 Nc5 39.Qd4 Qe7 40.Bg6 Rg8 41.Bf5 Ne6 42.Qd1 Nc5 43.Qf3 Rf8 44.Rfe1 Ne6 45.Qd1 Nf4 46.Qd2 Re8 47.Rf3 Ne6 48.Ref1 Nc5 49.Qd4 Rg8 50.Re1 Qf8 51.Kg2 Qe7 52.Ref1 Rf8 53.Kg3 Nxe4+ 54.Bxe4 Rxe4 55.Rxf6 Rxd4 56.Rxf8+ Qxf8 57.Rxf8+ Kh7 58.Rf7+ Kxh6 59.Rxc7 Rd3+ 60.Kf2 Rxb3 61.Rc6 Rb4 62.Rxd6+ Kg7 63.Rc6 Kf7 64.Ke3 Rxa4 65.Rxb6 Rxc4 66.Rb5 Rxg4 67.Rxa5 Kg6 68.Kf3 Rb4 69.Ra3 Kh5 1/2-1/2
2023.05.27 ECU Senior +65 2023
944229 Koehler, G2 (2205) Goli, D (1971) 1-0
1.c4 c5 2.g3 Nf6 3.Bg2 Nc6 4.Nc3 g6 5.Nf3 Bg7 6.d4 cxd4 7.Nxd4 O-O 8.O-O a6 9.Rb1 Qc7 10.Nc2 d6 11.Ne3 Be6 12.Ned5 Bxd5 13.cxd5 Ne5 14.Be3 Rac8 15.Bh3 Nfg4 16.Bd4 f5 17.e3 Nf6 18.e4 Qd7 19.exf5 gxf5 20.Qe2 Nfg4 21.Rbd1 Qe8 22.f4 Qh5 23.Kg2 Ng6 24.Rfe1 Bxd4 25.Rxd4 Rf6 26.Bxg4 Qxg4 27.Qxg4 fxg4 28.Re2 Rc7 29.Ne4 Rf5 30.Ng5 Rc5 31.Red2 Nf8 32.Ne4 Rc7 33.Nf2 h5 34.h3 gxh3+ 35.Kxh3 Ng6 36.Ne4 Kg7 37.Ng5 Nf8 38.Re2 Rf6 39.Rde4 Rc5 40.Rxe7+ Kg6 41.Ne4 Rf5 42.Ng5 1-0
2023.05.26 ECU Senior +65 2023
944206 Patola, E (1783) Koehler, G2 (2205) 0-1
1.e4 c5 2.c4 Nc6 3.Nc3 g6 4.g3 Bg7 5.Bg2 d6 6.d3 Nf6 7.h3 O-O 8.Nge2 Ne8 9.O-O Nc7 10.Rb1 Ne6 11.f4 Rb8 12.Kh2 Ned4 13.Nxd4 Nxd4 14.Be3 Bd7 15.Ne2 b5 16.b3 bxc4 17.Bxd4 cxd3 18.Bxg7 dxe2 19.Qxe2 Kxg7 20.f5 f6 21.Rf2 a5 22.h4 a4 23.Qc2 Qa5 24.Bh3 axb3 25.axb3 Rb4 26.g4 Bc6 27.Bg2 Qa8 28.Re1 Qb7 29.Re3 Rb8 30.fxg6 Rxb3 31.Rxb3 Qxb3 32.Qxb3 Rxb3 33.gxh7 Kxh7 34.g5 fxg5 35.Rf7+ Kg6 36.Rxe7 Rd3 37.hxg5 Kxg5 38.Rc7 Be8 39.e5 dxe5 40.Re7 Kf4 41.Rxe8 c4 42.Rc8 c3 43.Rc4+ Ke3 44.Re4+ Kd2 45.Rc4 c2 46.Be4 Rc3 47.Rxc3 Kxc3 48.Bxc2 Kxc2 49.Kg2 e4 0-1
2022.11.24 World Senior 65+ 2022
1118135 IM Chan Peng Kong (2149) Koehler, G2 (2198) 1/2-1/2
1.Nf3 c5 2.c4 g6 3.Nc3 Bg7 4.g3 Nc6 5.Bg2 d6 6.a3 e5 7.O-O Nge7 8.b4 O-O 9.Rb1 h6 10.d3 f5 11.Bd2 Rb8 12.b5 Nd4 13.e3 Ne6 14.Qa4 Ra8 15.Ne1 Nc7 16.Qb3 Kh7 17.f4 Ng8 18.Nf3 exf4 19.exf4 Ne6 20.Rbe1 Nf6 21.Kh1 Bd7 22.Re2 Qc7 23.Rfe1 Rae8 24.a4 Nd8 25.Be3 Be6 26.Bg1 Bf7 27.Nd2 Rxe2 28.Rxe2 Ne6 29.Nf3 Re8 30.Rb2 Qa5 31.Re2 Qd8 32.Qd1 Qa5 33.Qb3 Qc7 34.Qd1 Rd8 35.Qe1 Re8 36.Nd5 Qd8 37.Nxf6+ Bxf6 38.a5 Ng7 39.Rxe8 Nxe8 40.Be3 Kg7 41.Bd2 Nc7 1/2-1/2
2022.11.22 World Senior 65+ 2022
1118099 GM Legky, N (2350) Koehler, G2 (2198) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 g6 4.e4 Bg7 5.f4 c5 6.d5 O-O 7.Nf3 e6 8.Be2 exd5 9.cxd5 Re8 10.e5 dxe5 11.fxe5 Ng4 12.e6 fxe6 13.d6 Bd7 14.O-O c4 15.Kh1 Qb6 16.Qe1 Ne3 17.Bxe3 Qxe3 18.Bxc4 Qf4 19.Ne4 Nc6 20.Nfg5 Qe5 21.Qh4 h5 22.Nf7 Qd4 23.Rad1 1-0
2022.11.20 World Senior 65+ 2022
1123274 Koehler, G2 (2198) IM Binham, T (2284) 1/2-1/2
1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O c6 7.Qc2 d5 8.cxd5 cxd5 9.d4 e4 10.Nd2 Nc6 11.Nb3 h6 12.Bf4 Bf5 13.Rac1 Rc8 14.Qd2 b6 15.f3 Qd7 16.Rfe1 Re6 17.Be3 Rce8 18.f4 h5 19.h3 Ne7 20.a3 Bd6 21.Nd1 Qb5 22.Rc3 Bb8 23.Nf2 Rc6 24.Rec1 Rec8 25.Rxc6 Rxc6 26.Rxc6 Qxc6 27.Kf1 Bc8 28.Nd1 Ba6 29.Nc3 Nf5 30.Kf2 Qd6 31.Na1 h4 32.g4 Nxe3 33.Qxe3 Qxf4+ 34.Qxf4 Bxf4 35.Nc2 Bc4 36.Ne3 Bb3 37.Nb1 Kf8 38.Nd2 Ba4 39.b3 Bc6 40.Nb1 g6 41.Nc2 Ke7 42.Nc3 Bb7 43.Nb5 a6 44.Nc3 Kd7 45.e3 Bg3+ 46.Kg1 Kd6 47.Ne2 g5 48.Bf1 a5 49.Nxg3 hxg3 50.Kg2 Bc6 51.Kxg3 Bd7 52.Be2 Ne8 1/2-1/2
2022.11.19 World Senior 65+ 2022
1118049 Shaffer, A (1688) Koehler, G2 (2198) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.O-O Qc7 8.Bb3 Bd7 9.f4 Nc6 10.Be3 Na5 11.Qf3 Nxb3 12.axb3 Bc6 13.f5 e5 14.Nde2 b5 15.g4 Qb7 16.Ng3 d5 17.exd5 Nxd5 18.Nxd5 Bxd5 19.Qf2 f6 20.Rad1 Be7 21.Bc5 Bc6 22.Bxe7 Qxe7 23.Qb6 Qb7 24.Qc5 Rc8 25.Rd6 O-O 26.Qf2 Rfd8 27.Rfd1 Rxd6 28.Rxd6 Qe7 29.Re6 Qd7 30.h3 Qd1+ 31.Nf1 Qd5 32.Kh2 Rd8 33.Ne3 Qe4 34.Kg3 Kf7 35.Kh4 h5 36.Kg3 g5 37.Ng2 h4+ 38.Kh2 Rd7 39.b4 Bb7 40.Nxh4 Qh1+ 41.Kg3 gxh4+ 42.Kxh4 Rd8 43.Rxf6+ Kxf6 44.Qb6+ Qc6 45.Qxd8+ Kf7 46.Qh8 Qf6+ 47.Qxf6+ Kxf6 48.Kg3 Be4 49.c3 Bc2 50.h4 Bd1 51.Kh3 e4 52.Kg3 e3 0-1
2022.11.18 World Senior 65+ 2022
1123236 Koehler, G2 (2198) GM Jansa, Vl (2390) 0-1
1.c4 g6 2.Nc3 c5 3.g3 Bg7 4.Bg2 Nc6 5.a3 a5 6.Nf3 e5 7.d3 Nge7 8.Nd2 d6 9.Nf1 h5 10.h4 O-O 11.Ne3 Rb8 12.Rb1 Be6 13.Ned5 Qd7 14.Bg5 f6 15.Bd2 Kh7 16.Qa4 Rfd8 17.Nxe7 Qxe7 18.Nd5 Qf7 19.Nb6 f5 20.O-O f4 21.Qd1 Rf8 22.b4 axb4 23.axb4 Nd4 24.Nd5 Bg4 25.f3 Be6 26.Nc3 Bh6 27.gxf4 exf4 28.Ne4 Qe7 29.bxc5 dxc5 30.Qe1 b6 31.Qf2 Bf5 32.Bc3 Bg7 33.Rfc1 Bxe4 34.dxe4 Bf6 35.Be1 Nc6 36.Kh2 Bd4 37.Qf1 Ne5 38.Bf2 Rfd8 39.Rc2 Qf7 40.Rbc1 Ra8 41.Bh3 Ra4 42.Qd1 Nxc4 43.Bxd4 Rxd4 44.Qg1 Qf6 45.Qf2 Ne3 0-1
2022.11.17 World Senior 65+ 2022
1123201 IM Bogdanov, Val (2323) Koehler, G2 (2198) 0-1
1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 c6 5.e3 Nbd7 6.Qc2 Be7 7.b3 O-O 8.Bd3 dxc4 9.bxc4 c5 10.O-O cxd4 11.exd4 b6 12.Bb2 Bb7 13.Ne5 Rc8 14.Rad1 Re8 15.Qe2 Nf8 16.d5 exd5 17.cxd5 Bb4 18.Ne4 Nxe4 19.Qxe4 Bd6 20.Bb5 Re7 21.Qf5 Rc5 22.Nc6 Bxc6 23.Bxc6 Qc7 24.Qh3 Rc2 25.Bd4 Ng6 26.g3 Rxa2 27.Qf5 Ra5 28.Qb1 Ra3 29.Bb2 Rb3 30.Qc2 Rb4 31.Rfe1 Ne5 32.Bxe5 Rxe5 33.Rxe5 Bxe5 34.Re1 g6 35.Qd2 Rb2 36.Qh6 Qd6 37.Qe3 Qf6 38.Re2 Rxe2 39.Qxe2 Bd4 40.Kg2 Bc5 41.f4 a5 42.Qe5 Qxe5 43.fxe5 Bd4 44.e6 fxe6 45.dxe6 Kf8 46.Kf3 Ke7 47.Bd7 Kd6 48.Ke4 Bf6 49.Kd3 Kc5 50.Kc2 Kc4 51.Ba4 b5 52.Bb3+ Kb4 53.h4 a4 54.Bd5 Ka3 0-1
2022.11.16 World Senior 65+ 2022
1123178 Koehler, G2 (2198) Braathen, T (2005) 1-0
1.c4 c5 2.g3 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.a3 d6 6.Rb1 a5 7.d3 e5 8.Nf3 Nge7 9.O-O O-O 10.Ne1 Be6 11.Nc2 d5 12.cxd5 Nxd5 13.Ne3 Nxe3 14.Bxe3 Nd4 15.b4 cxb4 16.axb4 Rc8 17.Ne4 axb4 18.Rxb4 Bd5 19.Bxd4 exd4 20.Nd2 Bxg2 21.Kxg2 Qd5+ 22.Nf3 Rfe8 23.Re1 Re7 24.Qb3 Qxb3 25.Rxb3 Rc2 26.Kf1 h5 27.Rb4 Rd7 28.Reb1 Re7 29.Re1 Rd7 30.Reb1 Re7 31.Ng1 Rcc7 32.R1b2 g5 33.h3 Bf6 34.Nf3 Red7 35.g4 Kg7 36.Rb6 Re7 37.R2b4 Red7 38.R4b5 Re7 39.Rb4 Red7 40.Nd2 Be7 41.R6b5 Bc5 1-0
2022.11.15 World Senior 65+ 2022
1123143 Thjomoe, H (1854) Koehler, G2 (2198) 0-1
1.c4 Nf6 2.Nc3 e6 3.e4 d6 4.d4 c5 5.Nf3 cxd4 6.Nxd4 Be7 7.Be2 a6 8.O-O Qc7 9.Be3 b6 10.f4 Bb7 11.Bf3 Nbd7 12.Qe2 Rc8 13.Qf2 O-O 14.Rac1 Qb8 15.Qe2 Rfe8 16.b3 Nc5 17.Bf2 d5 18.exd5 exd5 19.cxd5 Bd6 20.Qd1 Bxf4 21.Bg3 Bxg3 22.hxg3 Qxg3 23.Nf5 Qe5 24.Bg4 Ncd7 25.Qd2 Nxg4 26.g3 Ne3 27.g4 Nxf5 28.Rfe1 Qg3+ 0-1
2022.11.04 TCh-EUR Senior +65 2022
1142358 FM Hammar, B (2074) Koehler, G2 (2198) 0-1
1.e4 c6 2.d4 d5 3.e5 Bf5 4.c4 e6 5.Nc3 Ne7 6.h3 Nd7 7.Nf3 dxc4 8.Bxc4 Nb6 9.Bb3 Ned5 10.Bg5 Qd7 11.Nh4 h6 12.Nxf5 hxg5 13.Ng3 Nf4 14.O-O O-O-O 15.Nce4 Be7 16.Nd6+ Bxd6 17.exd6 Qxd6 18.Ne4 Qe7 19.Re1 f6 20.a4 Qb4 21.a5 Rxd4 22.Qc2 Nbd5 23.a6 e5 24.axb7+ Kxb7 25.Nc5+ Ka8 26.Rec1 Rd2 27.Qf5 Ne2+ 28.Kf1 Ne3+ 0-1
2022.11.03 TCh-EUR Senior +65 2022
1142331 Koehler, G2 (2198) FM Vatter, H (2222) 1/2-1/2
1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.e3 a6 5.d4 c5 6.cxd5 exd5 7.Be2 Nc6 8.Ne5 Bd6 9.Nxc6 bxc6 10.dxc5 Bxc5 11.O-O O-O 12.b3 Re8 13.Bb2 Qd6 14.Bf3 Ba7 15.Ne2 Ne4 16.Nf4 Ng5 17.Bg4 f5 18.Be2 Bd7 19.g3 Ne4 20.Rc1 Re7 21.b4 Rb8 22.a3 Ra8 23.Bd4 Be8 24.Qd3 g5 25.Ng2 Bxd4 26.Qxd4 a5 27.f3 Nf6 28.Bd3 axb4 29.axb4 Rb7 30.b5 cxb5 31.Bxf5 b4 32.e4 Qb6 33.Qxb6 Rxb6 34.exd5 Nxd5 35.Be4 Rd8 36.Rfd1 Rbd6 37.Rb1 Bc6 38.Rd4 Nc3 39.Rxd6 Rxd6 40.Rxb4 Bxe4 41.fxe4 Rd1+ 42.Kf2 Rd2+ 43.Kf1 Kf7 44.Rc4 Nb5 45.Rc5 Nd4 46.Rxg5 Rd1+ 47.Kf2 Rd2+ 48.Ke3 Rxg2 49.Kxd4 Rxh2 50.Ke5 h5 51.Rf5+ Ke7 52.Rg5 Kf7 53.Kf4 h4 54.gxh4 Rxh4+ 55.Ke5 Rh6 56.Kd5 Ra6 57.Rf5+ Ke7 58.Kd4 Ra1 59.Rb5 Rh1 60.Rb6 Rh5 61.Ra6 Rg5 62.Rh6 Ra5 63.e5 Ra1 64.Rd6 Rd1+ 65.Kc5 Rc1+ 1/2-1/2
2022.11.02 TCh-EUR Senior +65 2022
1142307 FM Letzelter, JC (2054) Koehler, G2 (2198) 0-1
1.b4 e5 2.Bb2 Bxb4 3.Bxe5 Nf6 4.c4 Nc6 5.Bb2 O-O 6.e3 d5 7.Nf3 Re8 8.Be2 dxc4 9.Bxc4 Be6 10.Qb3 Nd5 11.Qc2 Nb6 12.Bxe6 Rxe6 13.O-O Bf8 14.d4 Qd5 15.Nc3 Qh5 16.Rfd1 Rg6 17.Qe2 Bd6 18.g3 Re8 19.e4 Nc4 20.Bc1 Bb4 21.Qxc4 Qxf3 22.Rd3 Qg4 23.f3 Qd7 24.Nd5 Ba5 25.Kg2 Nd8 26.Qc5 Bb6 27.Qa3 Ne6 28.Be3 Ng5 29.Rf1 h5 30.Nf4 Rh6 31.h4 Ne6 32.Nd5 Rg6 0-1
2022.11.01 TCh-EUR Senior +65 2022
1142284 Koehler, G2 (2198) Kierzek, Ma (2237) 1-0
1.c4 e5 2.g3 c6 3.d4 e4 4.Nc3 d5 5.Bg2 h6 6.Nh3 Nf6 7.cxd5 cxd5 8.O-O Be7 9.f3 exf3 10.exf3 O-O 11.Nf4 Nc6 12.Be3 Na5 13.Bf2 Bf5 14.Re1 Re8 15.Re5 Bd7 16.Nfxd5 Nxd5 17.Nxd5 Bd6 18.Rxe8+ Bxe8 19.Nc3 Nc4 20.Qb3 Na5 21.Qd1 Rc8 22.Ne4 Bc7 23.Rc1 b6 24.Bf1 f5 25.Nc3 Bb8 26.Bd3 Bd7 27.Ba6 Rc7 28.Qe2 Nb7 29.Re1 Bc8 30.Qe8+ Kh7 31.Bxb7 Qxe8 32.Rxe8 1-0
2022.10.31 TCh-EUR Senior +65 2022
1142268 Lang, K (1947) Koehler, G2 (2198) 0-1
1.d4 Nf6 2.Nf3 d5 3.c4 e6 4.Nc3 Be7 5.g3 O-O 6.Bg2 Nbd7 7.cxd5 exd5 8.O-O c6 9.Re1 Re8 10.Qc2 Bf8 11.a3 g6 12.b4 Ne4 13.Nxe4 dxe4 14.Ne5 Nxe5 15.dxe5 Bg7 16.Bb2 Bxe5 17.Bxe5 Rxe5 18.Bxe4 Qe7 19.Bf3 a5 20.bxa5 Rexa5 21.a4 Bf5 22.Qc4 Qe5 23.Rec1 Qb2 24.Ra2 Qb6 25.Ra3 Qa7 26.Qb4 Rd8 27.e3 Qa6 28.g4 Be6 29.Rc2 Rd7 30.Kg2 h5 31.h4 hxg4 32.Bxg4 Bxg4 33.Qxg4 Rad5 34.Ra1 Kg7 35.Qc4 Qa8 36.Qc3+ Kg8 37.Qf6 Rf5 38.Qc3 Qe8 39.f3 Qd8 40.Rh1 Rfd5 41.f4 Rd3 42.Qe1 Rd1 43.Qg3 R7d2+ 0-1
2022.10.30 TCh-EUR Senior +65 2022
1148085 Hietala, Pekka (1955) Koehler, G2 (2182) 1/2-1/2
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Nf3 O-O 6.Be2 Bg4 7.Be3 Nfd7 8.Qb3 Qc8 9.h3 Bxf3 10.Bxf3 e5 11.Rd1 Nc6 12.dxe5 dxe5 13.Bg4 Nd4 14.Bxd4 exd4 15.Nb5 Re8 16.O-O Rxe4 17.Bf3 Re6 18.Nxd4 Rb6 19.Qc2 Ne5 20.Be4 c5 21.Nb5 Qf8 22.Bd5 a6 23.Nc3 Nc6 24.Na4 Nb4 25.Qe4 Nxd5 26.Qxd5 Rc6 27.Rd3 Bd4 28.Nc3 Rd8 29.Qe4 Re6 30.Qf3 Bxc3 31.Rxd8 Qxd8 32.Qxc3 Qd4 33.Qc2 b5 34.cxb5 axb5 35.Rd1 Qe5 36.Qc3 Qxc3 37.bxc3 b4 38.cxb4 cxb4 39.Rb1 Re2 1/2-1/2
2022.10.29 TCh-EUR Senior +65 2022
1148065 Koehler, G2 (2182) Luminet, D (2135) 1/2-1/2
1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.Nf3 e4 5.Nd4 d5 6.cxd5 Qxd5 7.e3 Na6 8.Nc3 Qe5 9.f4 exf3 10.Nxf3 Qh5 11.d4 Be7 12.O-O O-O 13.Qb3 Nb4 14.a3 Be6 15.Qd1 Nbd5 16.Ne5 Qxd1 17.Rxd1 Rad8 18.e4 Nb6 19.Ne2 Ng4 20.Nd3 Bb3 21.Rf1 Bc4 22.Rf3 Bf6 23.e5 Bxd3 24.Rxd3 Bxe5 25.h3 Nh6 26.Bxh6 gxh6 27.a4 a5 28.Rb3 Bc7 29.Rc1 Rfe8 30.Bf3 1/2-1/2
2022.10.28 TCh-EUR Senior +65 2022
1148025 Koehler, G2 (2182) Staub, G (2039) 0-1
1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.Nf3 e4 5.Nd4 d5 6.cxd5 Qxd5 7.Nc2 Qh5 8.h3 Qg6 9.Nc3 Bd6 10.d3 exd3 11.Ne3 O-O 12.exd3 Rd8 13.d4 Be6 14.O-O Na6 15.a3 Nc7 16.b3 Ncd5 17.Ncxd5 cxd5 18.Bb2 Ne4 19.Re1 Bxh3 20.Bxh3 Nxf2 21.Kxf2 Qxg3+ 22.Kf1 Qxh3+ 23.Ng2 Bg3 24.Qf3 Qh1+ 25.Ke2 Re8+ 26.Kd2 Bxe1+ 27.Rxe1 Rxe1 28.Nxe1 Qxf3 29.Nxf3 Re8 30.Ne5 h5 31.Nd3 g5 32.Nb4 Rd8 33.Ke2 Kg7 34.Bc1 Kg6 35.a4 Kf5 36.a5 a6 37.Nd3 h4 38.Kf2 f6 39.Nc5 Rc8 40.Bd2 Rc7 41.Kf3 g4+ 42.Kg2 Re7 0-1
2022.10.27 TCh-EUR Senior +65 2022
1147997 Tichatschke, W (1944) Koehler, G2 (2182) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bd3 e5 7.Nf3 Nbd7 8.Bg5 Be7 9.O-O b5 10.a3 Bb7 11.Re1 Rc8 12.Bf1 h6 13.Bxf6 Nxf6 14.Nd5 Bxd5 15.exd5 Rc5 16.c4 bxc4 17.Qa4+ Nd7 18.Bxc4 O-O 19.Qxa6 Qc7 20.Ba2 Rc2 21.b4 Nb6 22.Qd3 Rc3 23.Qb1 Rxa3 24.Bb3 Rxa1 25.Qxa1 Rc8 26.Qa5 Ra8 27.Qb5 Ra3 28.Bc2 Nxd5 29.Bh7+ Kxh7 30.Qxd5 Kg8 31.b5 Rc3 32.h3 Qb6 33.Qa8+ Bf8 34.Qe8 Rc2 35.Rf1 Rb2 36.Rc1 Qxf2+ 0-1
2021.09.07 TCh-EUR Senior +65 2021
1548886 Koehler, G2 (2183) Konvalinka, Vladislav (1718) 1-0
1.c4 e5 2.g3 Nc6 3.Bg2 d6 4.Nc3 f5 5.d3 Nf6 6.e3 Be7 7.Nge2 O-O 8.O-O Be6 9.Nd5 Bf7 10.Nec3 Re8 11.b4 e4 12.b5 Nxd5 13.Nxd5 Bxd5 14.cxd5 Nb4 15.dxe4 fxe4 16.Rb1 Nd3 17.Bxe4 Nxc1 18.Rxc1 Qd7 19.Qd3 g6 20.Rc4 Bf6 21.a4 a6 22.Qc2 Rec8 23.Bf3 Qf5 24.Qxf5 gxf5 25.Rfc1 axb5 26.axb5 Bd8 27.b6 c5 28.dxc6 1-0
2021.09.06 TCh-EUR Senior +65 2021
1548847 Kierzek, Ma (2201) Koehler, G2 (2183) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 g6 4.e4 Bg7 5.h3 O-O 6.Be3 Nfd7 7.Nf3 c5 8.d5 Na6 9.Be2 Nc7 10.O-O e6 11.dxe6 Nxe6 12.Qxd6 Ne5 13.Bxc5 Nxc5 14.Qxc5 Nxf3+ 15.Bxf3 Be6 16.Rfd1 Qc8 17.Qxc8 Rfxc8 18.e5 Rxc4 19.Bxb7 Rb8 20.Bd5 Bxd5 21.Rxd5 Rxb2 22.Nd1 Re2 23.Ne3 Ra4 24.Rd8+ Bf8 25.Rc1 Kg7 26.Rcc8 Be7 27.Rg8+ Kh6 28.Ng4+ Kg5 29.Rc7 h5 30.Ne3 Re1+ 31.Kh2 Rxa2 32.Kg3 h4+ 33.Kf3 Ra4 34.g3 hxg3 35.Rxe7 gxf2 36.Kxf2 Rh1 37.Rxf7 Rxh3 38.Rf5+ Kh6 39.Rh8+ Kg7 40.Rxh3 gxf5 41.Nxf5+ Kf7 42.Nh4 a5 43.Nf3 Kg6 44.Ke3 Rb4 45.Nd4 a4 46.Ke4 1-0
2021.09.05 TCh-EUR Senior +65 2021
1556558 Koehler, G2 (2183) IM Neckar, L (2274) 1/2-1/2
1.c4 e6 2.g3 d5 3.Bg2 Nf6 4.Nf3 Be7 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 8.cxd5 Nxd5 9.Na3 b6 10.Nc4 Ba6 11.Rc1 Rc8 12.Qc2 Bf6 13.Rfe1 Bxb2 14.Qxb2 Qe7 15.d3 Rfd8 16.Red1 Bb7 17.d4 b5 1/2-1/2
2021.09.04 TCh-EUR Senior +65 2021
1556520 IM Boguszlavszkij, J (2144) Koehler, G2 (2183) 0-1
1.g3 d5 2.Bg2 c5 3.c3 Nf6 4.d4 e6 5.Nf3 Nc6 6.O-O Bd6 7.Na3 cxd4 8.cxd4 a6 9.Nc2 O-O 10.Nce1 Qb6 11.e3 Bd7 12.Nd3 Rfc8 13.Nfe5 Be8 14.Bd2 Ne4 15.Bxe4 dxe4 16.Nc4 Qc7 17.Nxd6 Qxd6 18.Nc5 Qd5 19.Na4 Qb5 20.b3 b6 21.Nb2 Rab8 22.Nc4 Qd5 23.Rc1 f6 24.Qe2 Bh5 25.g4 Qg5 26.f4 exf3 27.Qxf3 Bxg4 28.Qg3 Rd8 29.Rf2 Bf5 30.Qxg5 fxg5 31.Be1 h6 32.Rb2 b5 33.Nd2 Nb4 34.Rc7 Rbc8 35.Rxc8 Rxc8 36.e4 Bg6 37.Bg3 Nd3 38.Rb1 Rc2 39.Nf1 Bxe4 40.Ne3 Rxa2 41.Kf1 h5 42.Nd1 h4 43.Bd6 Nf4 44.Rc1 Bd3+ 0-1
2021.09.03 TCh-EUR Senior +65 2021
1556482 Koehler, G2 (2183) IM Bhend, E (2104) 1/2-1/2
1.c4 b6 2.d4 Bb7 3.Nc3 f5 4.Nf3 e6 5.g3 Nf6 6.Bg2 Bb4 7.O-O O-O 8.Qb3 Bxc3 9.Qxc3 Qc8 10.Bf4 Nc6 11.Rfd1 Ne7 12.Rac1 h6 13.Qa3 Ng6 14.Bd2 c5 15.dxc5 bxc5 16.Be3 Ne4 17.Nd2 Nxd2 18.Rxd2 Bxg2 19.Kxg2 Qc6+ 20.f3 Rfc8 21.Rcd1 Nf8 22.Rd6 Qc7 23.h4 a5 24.h5 a4 25.Bf4 Qb7 26.Be5 Ra7 27.Qc3 Qb4 28.Bxg7 Qxc3 29.Bxc3 Kf7 30.Kf2 Rcc7 31.e4 fxe4 32.fxe4 Nh7 33.Ke3 Ke7 34.R6d2 Rc8 35.Be5 Rg8 36.Rf1 Ke8 37.Bd6 Ra6 38.Bf4 Nf6 39.Rh1 Ng4+ 40.Kf3 e5 41.Rh4 exf4 42.Rxg4 Rxg4 43.Kxg4 fxg3 44.Kxg3 Ke7 45.Kf4 Rf6+ 46.Ke3 Rf1 47.Rd5 Rb1 48.b3 axb3 49.axb3 Rxb3+ 50.Kf4 d6 51.e5 dxe5+ 52.Rxe5+ Kd6 53.Rf5 Rc3 54.Rf6+ Ke7 55.Rxh6 Rxc4+ 56.Ke5 Rc1 57.Rh7+ Kf8 58.Kf6 Rf1+ 59.Kg6 Rg1+ 60.Kh6 Rf1 61.Rc7 Rf6+ 62.Kg5 Ra6 63.Rc8+ Kg7 64.h6+ Kh7 1/2-1/2
2021.09.02 TCh-EUR Senior +65 2021
1556439 IM Lederman, L (2246) Koehler, G2 (2183) 1/2-1/2
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.Nd1 cxd4 10.Nxd4 Nc5 11.Nf2 a6 12.Bd3 Bd7 13.O-O Rc8 14.Nf3 Nxd3 15.Nxd3 Na5 16.Qf2 Qe8 17.Qe1 Qd8 18.Nd4 Nc6 19.Nb3 b6 20.Qf2 Rb8 21.Rfd1 Qc7 22.Rac1 Nb4 23.Nxb4 Bxb4 24.c3 Be7 25.Nd4 f6 26.Nf3 a5 27.Bd4 f5 28.Kh1 Be8 29.Rg1 Bb5 30.Qe3 Qa7 31.g4 Be8 32.gxf5 Rxf5 33.Rg3 Bg6 34.Rcg1 Rf7 35.Rxg6 hxg6 36.Rxg6 Rbf8 37.Bxb6 Qb7 38.Rg4 Rb8 39.Ba7 Ra8 40.Bb6 Ra6 41.Bc5 Bxc5 42.Qxc5 d4 43.Kg2 Qxb2+ 44.Kg3 Qxc3 45.Qxd4 Qxd4 46.Nxd4 Rd7 47.f5 exf5 48.Nxf5 Re6 49.Re4 Rd2 50.a4 Rb2 51.h4 Rb4 52.Kf4 Rxe4+ 53.Kxe4 Rb6 54.Kd5 g6 55.Ne7+ Kf7 56.Nc6 Rb1 57.Nxa5 Ra1 58.Nc6 Rxa4 59.e6+ Ke8 60.Ne5 Rxh4 61.Nxg6 Rh6 62.Ne5 Ke7 63.Nc6+ Kf6 64.Kd6 Rh1 65.Ne7 Re1 66.Nd5+ Kg7 67.Kd7 Rxe6 1/2-1/2
2021.09.01 TCh-EUR Senior +65 2021
1556400 Koehler, G2 (2183) FM Berthelot, Y (2266) 0-1
1.c4 f5 2.g3 Nf6 3.Bg2 g6 4.Nc3 Bg7 5.d4 O-O 6.Nh3 d6 7.d5 Na6 8.Nf4 Nc5 9.Be3 e5 10.dxe6 Nxe6 11.Qd2 Nxf4 12.Bxf4 Qe7 13.O-O Qf7 14.Rac1 Kh8 15.b3 Ne8 16.Nb5 a6 17.Nc3 Rb8 18.Nd5 Be6 19.Rfd1 c6 20.Nc3 Rd8 21.e4 Rd7 22.exf5 Bxf5 23.Ne2 Nf6 24.Nd4 Nh5 25.Be3 Rdd8 26.Nxf5 Qxf5 27.Qb4 Rf7 28.Rxd6 Rdf8 29.Qc5 Qc8 30.Rcd1 Nf6 31.Qg5 Qe8 32.Qh4 Qe5 33.Rd8 h5 34.Rxf8+ Rxf8 35.h3 Qb2 36.Rd2 Qb1+ 37.Kh2 Kh7 38.Bc5 Rf7 39.Re2 Qd1 40.Re3 Qd2 41.g4 Nd7 42.Re7 Qf4+ 43.Kg1 Nxc5 44.Rxf7 Qxf7 45.gxh5 gxh5 46.b4 Ne6 47.Be4+ Kh8 48.Qg3 Nf4 49.Qf3 Bd4 50.Kh2 Qf6 51.a4 Qh4 52.b5 axb5 53.axb5 cxb5 54.cxb5 b6 55.Qg3 Qxg3+ 56.Kxg3 Be5 57.Kh4 Kg7 58.Kg5 Nxh3+ 59.Kxh5 Nxf2 60.Bd5 Kf6 61.Bc6 Bf4 62.Bf3 Ke5 63.Kg6 Ne4 64.Bg2 Nd6 65.Bf1 Kd4 66.Kf6 Kc5 67.Ke6 Bg3 68.Bd3 Nxb5 69.Kf5 Nd6+ 70.Kg4 Be5 71.Kf3 Nc4 72.Ke2 b5 73.Bc2 Kd4 74.Bh7 Kc3 75.Kd1 Bf4 76.Bg6 b4 77.Bh7 b3 78.Bg6 Ne3+ 79.Kc1 Nc2+ 80.Kb1 Na3+ 81.Ka1 Be5 0-1
2021.08.31 TCh-EUR Senior +65 2021
1556361 FM Hammar, B (2130) Koehler, G2 (2183) 0-1
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.g3 Nc6 7.Bg2 Nf6 8.O-O Be7 9.Re1 d6 10.Nxc6 bxc6 11.e5 dxe5 12.Rxe5 Nd5 13.Nxd5 cxd5 14.Re2 Bb7 15.Bf4 Qd7 16.c4 Rd8 17.cxd5 Bxd5 18.Bxd5 Qxd5 19.Rd2 Qb7 20.Rxd8+ Bxd8 21.Bd6 Be7 22.Bxe7 Kxe7 23.Qd4 f6 24.Rd1 Re8 25.Qc5+ Kf7 26.Qh5+ Kf8 27.Qxh7 Rb8 28.b3 a5 29.h4 Qf7 30.Rd4 f5 31.h5 Qg8 32.Qg6 Qf7 33.Qg5 Re8 34.h6 gxh6 35.Qxh6+ Qg7 36.Qd2 Re7 37.Rd8+ Kf7 38.Qxa5 Kg6 39.Qa8 Qa1+ 40.Kg2 Rh7 41.Rg8+ Kf6 42.Qf8+ Ke5 43.Qb8+ Kf6 44.Rf8+ Kg7 45.Qc7+ Kxf8 46.Qxh7 Qxa2 47.Qb7 f4 48.gxf4 Qc2 49.Qb4+ Kf7 50.Qc4 Qg6+ 51.Kf3 Qh5+ 52.Ke3 Qh3+ 53.Kd2 Qf3 54.Ke1 Qh1+ 55.Ke2 Qh5+ 56.f3 Qh2+ 57.Kd3 Qh1 58.Qe4 Qf1+ 59.Kc3 Qa1+ 60.Kb4 Qa6 0-1
2021.08.30 TCh-EUR Senior +65 2021
1556321 Koehler, G2 (2183) Horak, V (1954) 1-0
1.c4 e5 2.g3 Nc6 3.Bg2 d6 4.Nc3 Be6 5.d3 Qd7 6.Nd5 Be7 7.Nf3 Nf6 8.Ng5 O-O 9.Nxe6 fxe6 10.Nc3 d5 11.O-O Rad8 12.Qa4 Nd4 13.Qxd7 Rxd7 14.Bh3 Kf7 15.Bg5 c6 16.Rac1 Rdd8 17.Rfd1 Bb4 18.Kf1 Rfe8 19.a3 Bf8 20.b4 a5 21.Rb1 axb4 22.axb4 dxc4 23.dxc4 Nc2 24.Rxd8 Rxd8 25.b5 Na3 26.Ra1 Nxc4 27.bxc6 bxc6 28.Bg2 Rc8 29.Ra7+ Be7 30.Ra4 Nb6 31.Ra6 Nbd5 32.Na4 c5 33.Bh3 Nc7 34.Rc6 Ra8 35.Nxc5 Ra7 36.Nxe6 Nxe6 37.Bxe6+ Kg6 38.Be3 Ra1+ 39.Kg2 Rd1 40.Bc4 Rd7 41.h3 h6 42.Bd3+ Kf7 43.Bf5 Rb7 44.h4 g6 45.Bd3 Kg7 46.f3 Rd7 47.Re6 Nd5 48.Rxg6+ Kf7 49.Bxh6 Ne3+ 50.Bxe3 Rxd3 51.exd3 Kxg6 52.Kh3 Bf6 53.Kg4 Bh8 54.Bg5 1-0
2020.03.08 World Senior Teams +50
1998927 Koehler, G2 (2204) Polster, W (2201) 1-0
1.c4 f5 2.Nc3 g6 3.g3 Bg7 4.Bg2 e5 5.e3 Nc6 6.d3 Nh6 7.Nge2 O-O 8.O-O d6 9.Rb1 Be6 10.Nd5 Kh8 11.b4 a6 12.Qc2 Rc8 13.Bd2 Nb8 14.b5 axb5 15.cxb5 c6 16.bxc6 bxc6 17.Nb6 Rc7 18.a4 Qg5 19.d4 Qh5 20.Bb4 c5 21.d5 Bg8 22.Bc3 g5 23.f3 Nd7 24.Nxd7 Rxd7 25.e4 fxe4 26.Qxe4 Qe8 27.Bd2 Bf7 28.Qc4 Bg6 29.Rb6 Qd8 30.a5 Nf5 31.Bh3 Rdf7 32.Qa6 e4 33.f4 Nd4 34.Be3 Nxe2+ 35.Qxe2 gxf4 36.Bxf4 Bd4+ 37.Kh1 Rf6 38.Bg2 Qa8 39.Rxd6 Rxd6 40.Bxd6 Rxf1+ 41.Qxf1 Qxd5 42.Qf8+ Qg8 43.Qe7 Qd5 44.a6 c4 45.a7 1-0
2020.03.07 World Senior Teams +50
2000773 Gattermayer, R (1979) Koehler, G2 (2204) 1/2-1/2
1.e4 c5 2.Nc3 Nc6 3.d3 g6 4.g3 Bg7 5.Bg2 d6 6.Be3 Nf6 7.h3 Rb8 8.Qd2 Nd4 9.Nce2 Nc6 10.c3 O-O 11.Bh6 e5 12.Nf3 d5 13.Bxg7 Kxg7 14.exd5 Nxd5 15.O-O f6 16.Rad1 Be6 17.c4 Nde7 18.Kh2 Qc7 19.a3 Rbd8 20.Qc2 Rd7 21.Qb1 Qb6 22.b3 Rfd8 23.Nc3 Qa5 24.Na4 Bf5 25.Ne1 h5 26.f3 Be6 27.Nc2 Rxd3 28.Rxd3 Rxd3 29.Nb4 Rd6 30.Nd3 b6 31.Rd1 Rd4 32.Qc2 Qa6 33.g4 Qc8 34.Nc3 Qh8 35.Kg1 Qh6 36.Qe2 Bf7 37.Ne4 g5 38.Ndf2 Ng6 39.Nd6 Be6 40.Rxd4 Nxd4 41.Qe4 Kg8 42.Ne8 Nf8 43.Qb7 f5 44.gxh5 Bf7 45.Qe7 Bxe8 46.Qxe8 Ne2+ 47.Kh2 Qd6 48.h6 e4+ 49.Kh1 Qxh6 50.fxe4 g4 51.Qd8 Qc1+ 52.Qd1 Qxd1+ 53.Nxd1 gxh3 54.Bxh3 fxe4 55.Bg2 Ne6 56.Kh2 Ng5 57.Bf1 Nd4 58.b4 Nc2 59.bxc5 bxc5 60.a4 Nf3+ 61.Kg3 Nd2 62.Be2 Kf7 63.Kf4 Ke6 64.Nc3 Nd4 65.Bg4+ Kd6 66.Nxe4+ Nxe4 67.Kxe4 Kc6 68.Ke5 a5 69.Bh5 Nc2 70.Be8+ Kb6 71.Ke4 Nb4 72.Ke5 Kc7 73.Bb5 1/2-1/2
2020.03.06 World Senior Teams +50
2000637 Koehler, G2 (2204) WFM Fink Nunn, P (1983) 1-0
1.c4 e6 2.Nc3 d5 3.d4 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.e3 b6 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Nxd5 exd5 11.Bd3 Be6 12.O-O c5 13.dxc5 bxc5 14.Rc1 Nd7 15.Bb1 Rfd8 16.Qd3 g6 17.Qa3 Qf6 18.e4 d4 19.Nd2 g5 20.Rfe1 Qf4 21.Red1 h5 22.g3 Qf6 23.f4 gxf4 24.Rf1 Qg5 25.Rxf4 Rab8 26.Nf3 Qg7 27.b3 Rb7 28.Qa5 Rc8 29.Bd3 Rcb8 30.Qd2 Rb4 31.Rf1 a5 32.Nh4 a4 33.Nf5 Qh7 34.e5 Kh8 35.Qe2 axb3 36.Nd6 Qg7 37.Qxh5+ Kg8 38.Nxf7 bxa2 39.Nh6+ Kh8 40.Nf7+ Kg8 41.Ng5 Bc4 42.Bh7+ Kh8 43.Nf7+ Bxf7 44.Rxf7 Nf6 45.exf6 1-0
2019.11.23 World Senior 50+ 2019
2050647 Koehler, G2 (2184) IM Vareille, F (2417) 1/2-1/2
1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Qa4+ Bd7 7.Qb3 Nc6 8.Qxb7 Nd4 9.Qe4 g6 10.Qb1 Bg7 11.d3 Rb8 12.e3 Bc6 13.Kf1 Bxg2+ 14.Kxg2 Nde6 15.Qc2 O-O 16.Nge2 Qd7 17.h4 Rbd8 18.Rd1 g5 19.hxg5 Nxg5 20.Ng1 f5 21.Qa4 Qd6 22.d4 Kh8 23.dxc5 Qxc5 24.Bd2 Qb6 25.Nce2 e5 26.Bc3 Nd5 27.Ba5 Qb7 28.Kf1 Qa6 29.b3 Rd6 30.Bb4 Nxb4 31.Qxb4 Rxd1+ 32.Rxd1 Qxa2 33.Qe7 Qxb3 34.Rd7 Qf7 35.Qd6 Qf6 36.Qxf6 Bxf6 37.Rxa7 Rf7 38.Rxf7 Nxf7 39.Nc3 Nd6 40.Nd5 Kg7 1/2-1/2
2019.11.22 World Senior 50+ 2019
2050607 Koehler, G2 (2184) IM Managadze, N (2450) 0-1
1.c4 c5 2.Nc3 b6 3.Nf3 Bb7 4.e3 Nf6 5.d4 cxd4 6.exd4 g6 7.Bg5 Bg7 8.Be2 h6 9.Bf4 d5 10.O-O O-O 11.Rc1 Nc6 12.Ne5 dxc4 13.Bxc4 Na5 14.Be2 Nd5 15.Nxd5 Qxd5 16.Bf3 Qxa2 17.Bxb7 Nxb7 18.Qd2 g5 19.Bg3 Nd6 20.Nc6 Bf6 21.Rfe1 Rfe8 22.Be5 Nc4 23.Qb4 Na5 24.Nxa5 bxa5 25.Qb7 Bxe5 26.dxe5 Qe6 27.Ra1 Qb6 28.Qe4 Rad8 29.e6 Rf8 30.Qf5 Qxb2 31.Rxa5 Rd6 32.Rae5 Kg7 33.exf7 Rf6 34.R5e2 Qb6 35.Qe5 Rxf7 36.Rb2 Qd6 37.Qxd6 Rxd6 38.h4 Rd5 39.hxg5 hxg5 40.Ra1 a5 41.Rb7 e5 42.Rxf7+ Kxf7 43.f3 Ke6 44.Ra4 Kd6 45.Rg4 Kc5 46.Kf2 Kb5 47.Rxg5 a4 48.Rg8 a3 49.Ke3 Kb4 50.Rh8 a2 51.Rh1 Ra5 52.Ra1 Kc3 53.Ke4 Kb2 54.Rxa2+ Rxa2 55.Kxe5 Kc3 56.f4 Ra5+ 57.Ke4 Kc4 58.g4 Kc5 59.Ke5 Kc6+ 60.Ke6 Kc7 61.Ke7 Ra4 62.g5 Re4+ 63.Kf7 Rxf4+ 64.Ke7 Rg4 0-1
2019.11.21 World Senior 50+ 2019
2050547 IM Berend, F (2342) Koehler, G2 (2184) 0-1
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4 Be7 6.Be2 O-O 7.O-O Re8 8.Re1 c6 9.Bf1 a5 10.Be3 Ng4 11.Bd2 exd4 12.Nxd4 Nc5 13.f3 Ne5 14.Be3 Bf8 15.Qc2 Qc7 16.Rad1 b6 17.Kh1 Bb7 18.Bg1 Rad8 19.a3 g6 20.b4 axb4 21.axb4 Ne6 22.Nxe6 fxe6 23.Qf2 c5 24.b5 Bg7 25.Re3 Rf8 26.Qh4 Nd7 27.Qh3 Rfe8 28.Red3 Ne5 29.R3d2 Nf7 30.Ne2 Ne5 31.Nf4 Qe7 32.Be3 Bf6 33.Ra2 Ra8 34.Rxa8 Bxa8 35.Bf2 Bb7 36.Qg3 Kh8 37.h4 Ra8 38.Qh3 Bc8 39.Bg3 Ra3 40.Nd5 exd5 41.Qxc8+ Kg7 42.cxd5 Bxh4 43.Bh2 Qg5 44.Qc7+ Nf7 45.Qd7 Bg3 46.Qh3 Bxh2 47.Kxh2 Ra2 48.Re1 Ne5 49.Be2 Qe3 50.f4 Qxf4+ 51.Qg3 Qxg3+ 52.Kxg3 c4 53.Bf1 Rb2 54.Rc1 Rxb5 55.Kf4 Rc5 56.g4 h6 57.Ra1 c3 58.g5 hxg5+ 59.Kxg5 c2 60.Rc1 b5 61.Bxb5 Rxb5 62.Rxc2 Rb1 63.Rc7+ Nf7+ 64.Kf4 Kf6 65.Ke3 g5 66.Rc8 Rb3+ 67.Ke2 g4 68.Re8 Kg7 69.Kf2 Kf6 70.Kg2 Rf3 71.Re6+ Kg5 72.Re7 Kh4 73.Re6 Ra3 74.Rf6 Ra2+ 75.Kf1 Ne5 76.Ke1 g3 77.Kf1 Kg4 0-1
2019.11.20 World Senior 50+ 2019
2050491 Koehler, G2 (2184) Pogosian, Vl (2017) 1-0
1.c4 e5 2.g3 Nc6 3.Bg2 Nge7 4.Nc3 g6 5.e4 Bg7 6.Nge2 d6 7.d3 Bg4 8.h3 Bd7 9.O-O Nd4 10.Nxd4 exd4 11.Ne2 O-O 12.Qc2 c5 13.Bg5 h6 14.Bd2 Rb8 15.b4 f5 16.bxc5 dxc5 17.Bf4 fxe4 18.Bxb8 exd3 19.Qxd3 Bf5 20.Be4 Qxb8 21.Bxf5 Rxf5 22.Nf4 Qd6 23.Rae1 Be5 24.Ng2 Rf7 25.Qe4 Nc6 26.Qd5 Qf6 27.f4 Bc7 28.Nh4 Ne7 29.Qd7 Nf5 30.Qc8+ Kh7 31.Re6 Qd8 32.Qxd8 Bxd8 33.Nxf5 gxf5 34.Re5 b5 35.Rxc5 bxc4 36.Rxc4 Re7 37.Rf3 Ba5 38.Rd3 Re1+ 39.Kg2 Bb6 40.a4 Ra1 41.Kf3 h5 42.g4 hxg4+ 43.hxg4 Rf1+ 44.Kg3 Rg1+ 45.Kh2 Rxg4 46.a5 Bxa5 47.Rdxd4 Bb6 48.Rd7+ Rg7 49.Rd5 Rf7 50.Kg3 Rf6 51.Rc8 Rf7 52.Kh4 Kg6 53.Rg8+ Kf6 54.Rg5 Ke6 55.Re5+ Kd6 56.Rgxf5 Rg7 57.Kh3 a5 58.Rf6+ Kc7 59.Re4 Kb7 60.f5 Bd8 61.Rg6 Rf7 62.Kg4 Bf6 63.Re6 Bc3 64.Kf4 Bb4 65.Ke4 Rd7 66.Rb6+ Ka7 67.Ra6+ Kb7 68.Rgb6+ Kc8 69.f6 Rd1 70.Kf5 Rg1 71.Ke6 Bc3 72.Rc6+ Kb7 73.Rab6+ Ka7 74.Rb5 Re1+ 75.Kf7 Bb4 76.Re6 Rg1 77.Rd5 Kb7 78.Rd7+ Kc8 79.Rde7 a4 80.Rc6+ Kd8 81.Ra6 1-0
2019.11.19 World Senior 50+ 2019
2050427 FM Suciu, DS (2086) Koehler, G2 (2184) 1/2-1/2
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.c4 Bg7 5.Nc3 e6 6.e3 Nge7 7.d4 cxd4 8.Nxd4 Nxd4 9.exd4 d6 10.O-O O-O 11.Be3 Nf5 12.Qd2 Qc7 13.b3 a6 14.Rac1 Bd7 15.d5 Nxe3 16.Qxe3 e5 17.Ne4 f5 18.Ng5 Bh6 19.f4 Bxg5 20.fxg5 Rac8 21.b4 b6 22.Rfe1 f4 23.Qb3 Qd8 24.h3 fxg3 25.Qxg3 Rf4 26.Re4 1/2-1/2
2019.11.18 World Senior 50+ 2019
2050352 Koehler, G2 (2184) GM Dvoirys, S (2490) 1/2-1/2
1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 Nge7 6.e4 a6 7.Nge2 Rb8 8.O-O d6 9.Nd5 O-O 10.Bg5 f6 11.Be3 f5 12.Qd2 Nxd5 13.cxd5 Ne7 14.Rac1 c6 15.dxc6 Nxc6 16.d4 fxe4 17.d5 Ne7 18.Nc3 Nf5 19.Nxe4 Nxe3 20.Qxe3 Bf5 21.Rc4 Bxe4 1/2-1/2
2019.11.16 World Senior 50+ 2019
2050304 Martinez Lopez, J (1985) Koehler, G2 (2184) 0-1
1.d4 Nf6 2.Bg5 Ne4 3.Bf4 c5 4.f3 Nf6 5.dxc5 Qa5+ 6.Nc3 Qxc5 7.e4 d6 8.Qd2 a6 9.Nge2 Nbd7 10.Be3 Qc7 11.Nf4 e6 12.a4 b6 13.Bd3 Bb7 14.Qf2 Be7 15.O-O O-O 16.Rfd1 Rfe8 17.Kh1 Rac8 18.Bf1 Nc5 19.Rd2 Red8 20.Nd3 d5 21.exd5 Nxd5 22.Nxd5 Rxd5 23.b3 Rh5 24.Nf4 Rf5 25.Ne2 Ne4 0-1
2019.11.15 World Senior 50+ 2019
2054110 Koehler, G2 (2184) Smith, Peter R (2044) 1/2-1/2
1.c4 e6 2.Nc3 b6 3.a3 c5 4.Nf3 Nf6 5.g3 Bb7 6.Bg2 Be7 7.O-O O-O 8.d4 cxd4 9.Nxd4 Bxg2 10.Kxg2 a6 11.Bf4 d6 12.Nf3 Qc7 13.Qd3 Qb7 14.e4 Re8 15.Rfe1 Nbd7 16.b4 Rad8 17.Rac1 h6 18.Qe2 Ng4 19.Red1 Nge5 20.Nxe5 Nxe5 21.Bxe5 dxe5 22.Rxd8 Rxd8 23.f3 Rd4 24.Rd1 Qd7 25.Rxd4 Qxd4 26.Nd1 a5 27.bxa5 bxa5 28.a4 Bc5 29.Nf2 Kf8 30.Qc2 Ke8 31.h4 Kd7 32.Qd3 Kc6 33.Qxd4 Bxd4 34.Nd3 f5 35.g4 f4 36.h5 Kd6 37.Kf1 Be3 38.Ke2 Bd4 39.Kd2 Be3+ 40.Kc2 Bd4 41.Kb3 Bc5 42.Nc1 Kc6 43.Kc2 Be3 44.Nb3 Kb6 45.Kc3 Bc5 46.Kd3 Be3 47.Kc3 Bc5 48.Kd3 Be3 49.Ke2 Bc5 50.Nc1 Kc6 51.Nd3 Bd4 52.Kf1 Kd6 53.Kg2 Bc5 54.Kh3 Bb6 1/2-1/2
2019.11.14 World Senior 50+ 2019
2054021 GM Morovic Fernandez, I (2505) Koehler, G2 (2184) 1-0
1.Nf3 Nf6 2.c4 d6 3.d4 Nbd7 4.Nc3 e5 5.Bg5 Be7 6.e3 O-O 7.Qc2 c6 8.Be2 Ne8 9.Bxe7 Qxe7 10.O-O Nef6 11.b4 Re8 12.Rab1 exd4 13.exd4 Nf8 14.h3 Ne4 15.Bd3 Nxc3 16.Rbe1 Be6 17.Qxc3 Qf6 18.Re3 Bf5 19.Rfe1 Rxe3 20.Rxe3 Bxd3 21.Qxd3 Qg6 22.Qe2 Qb1+ 23.Kh2 a5 24.bxa5 Qb4 25.Rb3 Qxa5 26.Rxb7 Qxa2 27.Qxa2 Rxa2 28.Rb6 Rxf2 29.Rxc6 Rc2 30.d5 h5 31.Nd4 Rd2 32.Nf5 Ng6 33.Rxd6 Nf4 34.Kg3 g5 35.Kf3 Nxg2 36.c5 Nf4 37.c6 1-0
2019.11.13 World Senior 50+ 2019
2053979 Koehler, G2 (2184) Kirppo, Ronny (1901) 1-0
1.c4 e5 2.g3 Nf6 3.Bg2 h6 4.Nc3 Bb4 5.Qb3 a5 6.a3 Bxc3 7.Qxc3 d6 8.b3 O-O 9.Nf3 c6 10.O-O Re8 11.Bb2 Bg4 12.Rfe1 Nbd7 13.h3 Be6 14.d3 Qb6 15.Rac1 Nc5 16.Nd2 Qc7 17.d4 exd4 18.Qxd4 Bf5 19.Qf4 Bg6 20.Bxf6 gxf6 21.b4 Nd7 22.c5 Re5 23.cxd6 Qxd6 24.Nc4 Qe7 25.Nxe5 fxe5 26.Qxh6 axb4 27.axb4 Qxb4 28.Qg5 Re8 29.Rb1 Qa5 30.h4 Kh7 31.Ra1 Qb4 32.Bh3 f6 33.Qe3 Nf8 34.Red1 Kg7 35.Rac1 Qb2 36.Bg4 Qb4 37.Bh3 Qb2 38.Rc3 Qb4 39.Rb3 Qa4 40.Rxb7+ Kg8 41.Rc1 Rd8 42.Qh6 Rd1+ 43.Kh2 Bf7 44.Qxf6 1-0
2019.11.12 World Senior 50+ 2019
2053922 Sopko, Cassio Roberto (1835) Koehler, G2 (2184) 1/2-1/2
1.d4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nf3 O-O 5.b3 d6 6.Bb2 Nbd7 7.Nbd2 e5 8.dxe5 Ng4 9.O-O Ngxe5 10.Nxe5 Nxe5 11.Rb1 a5 12.a4 Re8 13.Nf3 c6 14.Nxe5 dxe5 15.Qxd8 Rxd8 16.Rfd1 Bf5 17.e4 Be6 18.Bc3 Rxd1+ 19.Rxd1 f6 20.Bf1 Kf8 21.f3 Ke8 22.Be1 Bf8 23.c4 Bc5+ 24.Bf2 Bxf2+ 25.Kxf2 Rd8 26.Rxd8+ Kxd8 27.Ke3 Kc7 28.Kd2 Kd6 29.Kc3 Kc5 30.g4 Bd7 31.Bd3 b6 32.h3 Be6 33.Be2 h6 34.Bd3 Bd7 35.Bc2 Kd6 36.Bd3 h5 37.Be2 h4 38.Bd1 f5 39.Be2 fxe4 40.fxe4 Kc5 41.Bf1 Kd6 42.Be2 Ke7 43.Bf1 Kf6 44.Kd2 Kg5 45.Ke3 1/2-1/2
2019.08.18 Vienna Open 2019
2329324 IM Schwabeneder, Florian (2404) Koehler, G2 (2197) 1-0
1.e4 c5 2.Nf3 e6 3.c3 Nf6 4.e5 Nd5 5.d4 cxd4 6.cxd4 d6 7.Bc4 Nc6 8.O-O Be7 9.exd6 Qxd6 10.Nc3 Nxc3 11.bxc3 O-O 12.Re1 b6 13.Ng5 Bxg5 14.Bxg5 Bb7 15.Qg4 Rfe8 16.Bh6 Qf8 17.Bd3 Ne7 18.Bd2 Rac8 19.Re3 f5 20.Qe2 Qf7 21.Rxe6 Bd5 22.Re5 Nc6 23.Rxe8+ Rxe8 24.Qf1 Na5 25.a4 Rc8 26.Rb1 Rc6 27.f3 Nc4 28.Bf4 h6 29.Re1 Na5 30.Re5 Bc4 31.h4 Bxd3 32.Qxd3 Rf6 33.d5 Qd7 34.Qb5 Qxb5 35.axb5 Kf7 36.Re2 g6 37.Be5 1-0
2019.05.03 31st ch-GER Seniors +50
2395215 Koehler, G2 (2153) Schmidt, Gerhard (2077) 0-1
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5 11.f3 f4 12.Bf2 g5 13.a4 a5 14.Nd3 b6 15.Nb5 Nf6 16.b4 axb4 17.Be1 g4 18.Bxb4 Ng6 19.fxg4 Nxe4 20.a5 Ng5 21.axb6 Rxa1 22.Qxa1 e4 23.bxc7 Qd7 24.Qd1 f3 25.Bxf3 exf3 26.Bxd6 Qxg4 27.Bg3 Qxc4 28.Nd6 Qxc7 29.Nxc8 Qxc8 30.gxf3 Bd4+ 31.Kh1 Qf5 32.d6 Qd7 33.Nf4 Nxf4 34.Qxd4 Nfe6 35.Qd5 Rc8 36.f4 Nf7 37.f5 Ned8 38.Kg1 Qc6 39.Qd1 Qc5+ 40.Kh1 Qc6+ 41.Kg1 Qe4 42.Rf4 Qe3+ 43.Kg2 Kf8 44.Qg4 Nxd6 45.Qh4 N8f7 46.Kh3 h6 47.Qf6 Ne4 48.Qa6 Rc2 49.Qa8+ Kg7 50.f6+ Kh7 51.Qb7 Kg6 52.Rg4+ Nfg5+ 53.Kh4 Rxh2+ 0-1
2019.05.02 31st ch-GER Seniors +50
2395207 Belke, F (2283) Koehler, G2 (2153) 1-0
1.d4 Nf6 2.c4 c5 3.Nf3 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.e4 d6 7.Be2 Nc6 8.Be3 Bd7 9.O-O O-O 10.f3 Nxd4 11.Bxd4 Bc6 12.Qd2 Nd7 13.Bxg7 Kxg7 14.Qd4+ Kg8 15.Rfd1 Qb6 16.Qxb6 Nxb6 17.b3 Rfd8 18.Kf2 Kf8 19.Rd2 e5 20.Rad1 Ke7 21.h4 h6 22.g3 Rab8 23.f4 f6 24.h5 exf4 25.gxf4 g5 26.fxg5 fxg5 27.Bg4 Rf8+ 28.Kg3 Rf6 29.e5 dxe5 30.c5 Na8 31.Nd5+ Bxd5 32.Rxd5 Re8 33.Rd7+ Kf8 34.Rxb7 a5 35.Rh7 Kg8 36.Rdd7 e4 37.Be2 1-0
2019.05.01 31st ch-GER Seniors +50
2395201 Koehler, G2 (2153) FM Mueller, Mic1 (2163) 1-0
1.c4 e6 2.Nc3 d5 3.cxd5 exd5 4.d4 Nf6 5.Bg5 Be7 6.e3 O-O 7.Bd3 c6 8.Nge2 Re8 9.Qc2 h6 10.Bh4 Nbd7 11.O-O Nf8 12.f3 Ne6 13.Rad1 b6 14.Qa4 Bb7 15.Bb1 Nf8 16.Qc2 Rc8 17.e4 dxe4 18.Bxf6 Bxf6 19.fxe4 Bg5 20.Qd3 Rc7 21.e5 Rd7 22.Ne4 c5 23.Nd6 Rxd6 24.exd6 Qxd6 25.d5 Qc7 26.Nc3 c4 27.Qf5 Re5 28.Qf3 Qe7 29.Kh1 Qd7 30.Rfe1 Rxe1+ 31.Rxe1 g6 32.Rd1 f5 33.a4 a6 34.Qf2 Qd6 35.Qd4 Qc7 36.d6 Qc6 37.Qd5+ Qxd5 38.Nxd5 Nd7 39.Ba2 b5 40.axb5 axb5 41.Kg1 Kf7 42.Nc7 Bc6 43.Re1 Bf6 44.b3 Nc5 45.bxc4 b4 46.Nd5 b3 47.Nxf6 Kxf6 48.Bb1 Be4 49.Bxe4 fxe4 50.Rd1 Nd3 51.Kf1 Ke6 52.d7 Kxd7 53.Ke2 Kc6 54.Kd2 Kc5 55.Kc3 b2 56.g4 h5 57.gxh5 gxh5 58.Rf1 Kd6 59.Rd1 Ke5 60.Rf1 Ke6 61.Kc2 Ke5 62.Kc3 Ke6 63.Rb1 Ke5 64.c5 Nxc5 65.Kxb2 Kd4 66.Kc2 Nd3 67.Rb8 Ke3 68.Rg8 Ne1+ 69.Kd1 Nf3 70.Rg2 h4 71.Ra2 Kf4 72.Rb2 Ke3 73.Ra2 h3 74.Rb2 Kf4 75.Ra2 Nd4 76.Ke1 Kf3 77.Kf1 e3 78.Ra3 Ke4 79.Ra2 Kd3 80.Ra3+ Ke4 81.Ra2 Ne6 82.Ra4+ Kf3 83.Ra3 Nd4 84.Rd3 Nf5 85.Ra3 Nh6 86.Ra8 Nf5 87.Rh8 e2+ 88.Ke1 Kg2 89.Kxe2 Kxh2 90.Kf2 Nd4 91.Rh4 Nf5 92.Ra4 Nd6 93.Rd4 Nf5 94.Rd3 Nh4 95.Ra3 Ng6 96.Ra2 Nh4 97.Rb2 Nf5 98.Kf3+ Kg1 99.Rb1+ Kh2 100.Ra1 Nh6 101.Ra2+ Kg1 102.Kg3 Nf5+ 103.Kxh3 Kf1 104.Kg4 Nd4 105.Kf4 Ne6+ 106.Kf3 Nd4+ 107.Ke4 Ne6 108.Ra5 Kf2 109.Re5 Nd8 110.Kd5 Kg3 111.Re7 Kf4 112.Rd7 1-0
2019.04.30 31st ch-GER Seniors +50
2395194 IM Nekrasov, M (2277) Koehler, G2 (2153) 1-0
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 Qb6 8.Nf3 cxd4 9.cxd4 Be7 10.O-O Qd8 11.a3 Nb6 12.b3 Bd7 13.Bd2 a5 14.Nc3 f5 15.exf6 gxf6 16.Nh4 Bc8 17.Nb5 Kd7 18.Bf4 Qg8 19.Nc7 Nxd4 20.Nxa8 Nxa8 21.b4 Nc6 22.Bg3 Qg7 23.Re1 Kd8 24.Bb5 Ne5 25.Qd4 Bd6 26.f4 Nf7 27.Rac1 axb4 28.axb4 Bc7 29.Qd3 f5 30.Nxf5 1-0
2019.04.29 31st ch-GER Seniors +50
2395191 Koehler, G2 (2153) Stahr, R (2160) 1-0
1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.d4 d6 5.Nc3 Be7 6.e4 O-O 7.Nge2 Na6 8.O-O Qc7 9.h3 exd4 10.Nxd4 Nc5 11.b4 Ne6 12.Nf5 Rd8 13.Be3 Bf8 14.Rc1 g6 15.Nh6+ Kh8 16.Qf3 Bg7 17.Nd5 cxd5 18.cxd5 Qe7 19.dxe6 Bxe6 20.Bg5 Rac8 21.Ng4 Bxg4 22.hxg4 h6 23.Be3 b6 24.g5 hxg5 25.Bxg5 Qe6 26.Qf4 Re8 27.Qh4+ Nh7 28.Bh3 Rxc1 29.Bxe6 Rxf1+ 30.Kxf1 Rxe6 31.Be3 Bf6 32.Qg4 Bc3 33.Qd1 Nf6 34.Bd4 Bxd4 35.Qxd4 Kg8 36.f3 g5 37.g4 Kg7 38.Kf2 Kg6 39.Qd3 Kg7 40.Qd2 Kg6 41.Qc2 Kg7 42.Qc7 a5 43.bxa5 bxa5 44.Qxa5 d5 45.exd5 Rd6 46.Qc5 1-0
2019.04.28 31st ch-GER Seniors +50
2398550 FM Metz, Ha (2251) Koehler, G2 (2153) 1/2-1/2
1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.c4 Bg7 6.Nc2 d6 7.Be2 Qa5+ 8.Bd2 Qb6 9.Nc3 Nf6 10.O-O O-O 11.Rc1 Be6 12.b3 Rfc8 13.Nd5 Qd8 14.f3 Bd7 15.Kh1 Nxd5 16.exd5 Nd4 17.Nxd4 Bxd4 18.Bg5 Bg7 19.Bd3 Qf8 20.Rc2 Bh6 21.Bh4 Bf4 22.Qe1 Re8 23.Re2 Qh6 24.Bg3 Bg5 25.Bf2 Bf6 26.Be3 Qg7 27.Qc1 b6 28.Bh6 Qh8 29.Qe1 Bc3 30.Bd2 Bxd2 31.Qxd2 Qf6 32.Rfe1 Kg7 33.Re4 e5 34.dxe6 Rxe6 35.Rxe6 Bxe6 36.Be4 Rd8 37.Rd1 Qe5 38.Kg1 f5 39.Bb7 Qc5+ 40.Kh1 Rd7 41.Ba8 Rd8 42.Qb2+ Kf7 43.Bb7 b5 44.Bd5 Bxd5 45.Rxd5 Qe3 46.h3 Qe1+ 47.Kh2 f4 48.Qd2 Qxd2 49.Rxd2 bxc4 50.bxc4 Ke6 51.h4 d5 52.Re2+ Kf6 53.cxd5 Rxd5 54.Re4 Kf5 55.Ra4 a5 56.Rc4 h6 57.Rc6 h5 58.Ra6 Rc5 59.a3 Rb5 60.a4 Rd5 61.Kg1 g5 62.Rh6 gxh4 63.Rxh5+ Ke6 64.Rh6+ Kd7 65.Ra6 Kc7 66.Kh2 Kb7 67.Re6 Rd4 68.Re4 Rb4 69.Kh3 Kc6 70.Kg4 Rb2 71.Rxf4 Rxg2+ 72.Kxh4 Kc5 73.Re4 Rg1 74.f4 Rg2 75.Kh5 Rg1 76.Kh6 Rg2 77.Kh5 Rg1 78.Kh6 Rg2 79.f5 Kd5 80.Re8 Rg4 81.f6 Rxa4 82.f7 Rf4 83.f8=Q Rxf8 84.Rxf8 Kc4 85.Kg5 a4 86.Kf4 a3 87.Ke3 Kc3 88.Rc8+ Kb2 89.Rb8+ Kc2 90.Ra8 Kb2 91.Kd3 a2 92.Rb8+ Kc1 93.Rc8+ Kb1 94.Kd2 a1=Q 95.Rb8+ Qb2+ 96.Rxb2+ 1/2-1/2
2019.01.31 Gibraltar Masters 2019
2433229 GM Repka, C (2491) Koehler, G2 (2184) 1-0
1.d4 Nf6 2.Nf3 d6 3.Nc3 g6 4.Bf4 Nh5 5.Bg5 h6 6.Bh4 g5 7.Bg3 Bg7 8.e4 Nc6 9.d5 Nxg3 10.hxg3 Ne5 11.Nd4 c5 12.Nf5 Bxf5 13.exf5 Qb6 14.Bb5+ Nd7 15.O-O O-O-O 16.a4 Qa5 17.Qh5 Rhf8 18.Rae1 Bxc3 19.bxc3 Nf6 20.Qf3 a6 21.Bc4 Rd7 22.Qd3 Ng4 23.f4 Rg8 24.Bb3 Nf6 25.Re2 Kd8 26.c4 Nh5 27.Re3 Nf6 28.Qe2 Rc7 29.Re1 Rd7 30.c3 Re8 31.fxg5 hxg5 32.g4 Qb6 33.Bd1 Qa5 34.Qa2 Rh8 35.Qf2 Re8 36.Qg3 Kc7 37.Qh2 Kd8 38.Kf1 b5 39.axb5 axb5 40.Qh6 Rg8 41.Rxe7 Rxe7 42.Qxf6 Qc7 43.cxb5 Re8 44.Bf3 Kc8 45.Ra1 Kb7 46.Ra6 Rd7 47.Qxg5 Ra8 48.Be2 Rxa6 49.bxa6+ Ka7 50.f6 Qa5 51.Qe3 Qa1+ 52.Kf2 Qb1 53.Qe8 Rc7 54.Qd8 Qb6 55.Bc4 Qb2+ 56.Be2 Qb6 57.Bb5 c4+ 58.Kf3 Qc5 59.Ke4 Rc8 60.Qe7+ Rc7 61.Bc6 Rxe7+ 62.fxe7 Qf2 63.e8=Q f5+ 64.gxf5 Qxg2+ 65.Kf4 1-0
2019.01.30 Gibraltar Masters 2019
2433105 Koehler, G2 (2184) IM Fenollar Jorda, M (2342) 0-1
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 e6 5.b3 Nbd7 6.Be2 Bd6 7.Qc2 O-O 8.O-O Qe7 9.Bb2 a6 10.d4 dxc4 11.Bxc4 e5 12.Bd3 Re8 13.Ne4 Nxe4 14.Bxe4 h6 15.Rfe1 Ba3 16.Bxa3 Qxa3 17.Red1 exd4 18.Nxd4 Qe7 19.Bh7+ Kh8 20.Nf5 Qe6 21.Nd6 g6 22.Nxf7+ Kxh7 23.Nxh6 Kxh6 24.Rd4 Nf6 25.Rad1 Qe7 26.Qe2 0-1
2019.01.29 Gibraltar Masters 2019
2432966 GM Larino Nieto, D (2432) Koehler, G2 (2184) 1-0
1.Nf3 Nf6 2.b3 g6 3.Bb2 Bg7 4.g3 O-O 5.Bg2 d6 6.d4 a5 7.Nc3 Nbd7 8.e4 c6 9.O-O Qc7 10.Re1 e5 11.dxe5 dxe5 12.Ba3 Re8 13.Bd6 Qd8 14.Qd2 Bf8 15.Bxf8 Kxf8 16.Rad1 Qe7 17.Qd6 Qxd6 18.Rxd6 Re7 19.a4 Ne8 20.Rd3 Nc5 21.Rd8 Ne6 22.Rd2 f6 23.Red1 N8c7 24.h4 h5 25.Bf1 Ke8 26.Nd5 cxd5 27.exd5 Nxd5 28.Rxd5 Bd7 29.Bd3 Nf8 30.Nd2 Bc6 31.Ne4 Kf7 32.Rd6 Ne6 33.f3 f5 34.Ng5+ Nxg5 35.hxg5 Bxf3 36.Bc4+ Kg7 37.R1d2 Rf8 38.Kf2 Bc6 39.Bd5 f4 40.Bxc6 bxc6 41.gxf4 exf4 42.Rd7 Rff7 43.Rxe7 Rxe7 44.Kf3 Rf7 45.Rd6 Rf5 46.Rd7+ Kf8 47.Rc7 Rxg5 48.Rxc6 Rg4 49.c3 g5 50.b4 Rg3+ 51.Kf2 Ke7 52.bxa5 Kd7 53.Rc5 g4 54.a6 Re3 55.a7 Re8 56.Rxh5 Kc7 57.Rf5 g3+ 58.Kg2 Kb7 59.Rxf4 Kxa7 60.Kxg3 Re3+ 61.Rf3 Re4 62.a5 Ka6 63.Rd3 Kxa5 64.Kf3 Re8 65.Re3 Rd8 66.Re5+ Kb6 67.Ke4 Rd1 68.Rd5 Rh1 69.Kd3 Rh3+ 70.Kc4 Rh4+ 71.Rd4 Rxd4+ 72.Kxd4 Kc6 73.Kc4 1-0
2019.01.28 Gibraltar Masters 2019
2432865 Koehler, G2 (2184) WGM Hoolt, S (2358) 1-0
1.c4 e5 2.g3 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.e3 d6 6.Nge2 f5 7.d3 Nf6 8.O-O O-O 9.Rb1 Ne7 10.e4 fxe4 11.dxe4 c6 12.b3 Be6 13.Qd3 Qc7 14.Ba3 Rad8 15.Rbd1 Qa5 16.Bc1 d5 17.cxd5 cxd5 18.exd5 Nexd5 19.Qb5 Qxb5 20.Nxb5 Bg4 21.Rde1 Nb4 22.h3 Bd7 23.Nbc3 Nd3 24.Rd1 Nxc1 25.Rxc1 b6 26.Rfd1 Bh6 27.Rb1 Rc8 28.Rd6 Bf5 29.Re1 Kf7 30.g4 Be6 31.Nb5 Ke7 32.Rd3 a6 33.Na7 Rc5 34.Nc6+ Kf7 35.b4 e4 36.Bxe4 Nxe4 37.bxc5 Nxc5 38.Rf3+ Kg8 39.Rxf8+ Bxf8 40.Nc3 b5 41.Rd1 Bg7 42.Nd5 Kf8 43.Ndb4 Bc3 44.Rd8+ Kg7 45.Ra8 Kh6 46.Nxa6 Nd3 47.Rd8 Nf4 48.Kh2 Bxa2 49.Nab4 Kg5 50.Nxa2 1-0
2019.01.27 Gibraltar Masters 2019
2432821 Herzwurm, R (2021) Koehler, G2 (2184) 0-1
1.e4 c5 2.Nc3 Nc6 3.f4 e6 4.Nf3 d6 5.Bc4 Nf6 6.O-O Be7 7.d3 O-O 8.a3 d5 9.Ba2 dxe4 10.dxe4 Qb6 11.Nd2 Rd8 12.e5 Ne8 13.Qe1 Nd4 14.Qf2 Qc6 15.Nf3 b5 16.f5 exf5 17.Ng5 Be6 18.Nxe6 fxe6 19.Be3 Nc7 20.Nd1 c4 21.Kh1 Bc5 22.c3 Nb3 23.Bxb3 Bxe3 24.Qxe3 cxb3 25.Nf2 Nd5 26.Qf3 Qc7 27.Nd3 Nb6 28.Nf4 Re8 29.h3 Rac8 30.Rae1 Nc4 31.Qd1 Rcd8 32.Qxb3 Nd2 33.Nxe6 Qf7 0-1
2019.01.26 Gibraltar Masters 2019
2437054 Koehler, G2 (2184) FM Lombaers, P (2372) 0-1
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5 11.f3 f4 12.Bf2 g5 13.Nd3 Nf6 14.c5 Ng6 15.Rc1 Rf7 16.a4 h5 17.cxd6 cxd6 18.Nb5 g4 19.Rc3 h4 20.Qc2 g3 21.Bxa7 Bd7 22.Nxd6 Rxa7 23.Nxf7 Kxf7 24.Nc5 h3 25.Nxd7 Nxd7 26.Bb5 Qb6+ 27.Kh1 hxg2+ 28.Kxg2 Nh4+ 29.Kh3 Qh6 30.hxg3 Ng6+ 31.Kg2 fxg3 32.Rh1 Nf4+ 33.Kg1 Qb6+ 0-1
2019.01.25 Gibraltar Masters 2019
2436951 Kozarcanin, S (2048) Koehler, G2 (2184) 0-1
1.b3 Nf6 2.Bb2 g6 3.e4 d6 4.Qe2 Bg7 5.d4 O-O 6.Nf3 e5 7.dxe5 Ng4 8.Nbd2 Nc6 9.Nc4 Ngxe5 10.O-O-O Re8 11.Nfxe5 Nxe5 12.Ne3 a5 13.a4 Bd7 14.f4 Nc6 15.Bxg7 Kxg7 16.Nd5 Bf5 17.Qc4 Bxe4 18.Nc3 f5 19.Rg1 Nb4 20.Nxe4 Rxe4 21.Qc3+ Qf6 22.Qxc7+ Re7 23.Qc4 Na2+ 24.Kd2 d5 25.Qd3 Rc8 26.Re1 Rxe1 27.Kxe1 Nb4 28.Qd1 Nxc2+ 29.Kf2 Qb6+ 0-1
2019.01.24 Gibraltar Masters 2019
2436805 Koehler, G2 (2184) IM Sukandar, I (2397) 0-1
1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.Nf3 e4 5.Nd4 d5 6.cxd5 cxd5 7.d3 Qb6 8.dxe4 Bc5 9.e3 dxe4 10.Nc3 O-O 11.O-O Bg4 12.Qa4 Bd7 13.Qc4 Bxd4 14.Qxd4 Bc6 15.Rd1 Na6 16.Qxb6 axb6 17.Bd2 Rfc8 18.Bh3 Rd8 19.Ne2 Nc5 20.Nd4 Bd5 21.b3 h5 22.Bc3 Nd3 23.Bf1 Rdc8 24.Be1 Ne5 25.Be2 g6 26.h3 Nf3+ 27.Bxf3 exf3 28.a4 Ne4 29.Nxf3 Bxb3 30.Rd4 Nc5 31.Rb4 Bxa4 32.Nd4 Bd7 33.Rxa8 Rxa8 34.Kg2 Nd3 35.Rb1 Bc6+ 36.Kf1 Be4 37.f3 Nxe1 38.Rxe1 Bd3+ 39.Kg1 b5 40.Rd1 Ra3 41.e4 b4 42.Kf2 b3 43.Rxd3 b2 44.Rxa3 b1=Q 45.Rb3 Qd1 46.Ke3 Qg1+ 0-1
2019.01.23 Gibraltar Masters 2019
2436655 GM Tan Zhongyi (2502) Koehler, G2 (2184) 1-0
1.c4 Nf6 2.Nc3 d6 3.d4 Nbd7 4.g3 g6 5.Bg2 Bg7 6.Nf3 O-O 7.O-O e5 8.h3 Re8 9.e4 c6 10.Re1 Qc7 11.Be3 exd4 12.Nxd4 Nc5 13.Qc2 a5 14.Rad1 Nfd7 15.b3 Ne6 16.Nde2 Bf8 17.Qd2 Ng7 18.Nd4 Nc5 19.Ndb5 cxb5 20.Nd5 Qb8 21.Bxc5 1-0
2019.01.22 Gibraltar Masters 2019
2436543 Koehler, G2 (2184) GM Arizmendi Martinez, J (2506) 1/2-1/2
1.c4 e5 2.g3 Nf6 3.Bg2 d6 4.Nc3 g6 5.Nf3 Bg7 6.d4 Nbd7 7.O-O O-O 8.e4 a6 9.Re1 Rb8 10.Bf1 exd4 11.Nxd4 Ne5 12.f3 c5 13.Nc2 Be6 14.Ne3 Nc6 15.Nc2 Nd7 16.f4 Nd4 17.Nxd4 cxd4 18.Nd5 b5 19.cxb5 Bxd5 20.exd5 axb5 21.Bd2 Nc5 22.Bb4 Qd7 23.Rc1 Qa7 24.a3 d3 25.Kh1 Bxb2 26.Rb1 Bf6 27.Bxd3 Rfd8 28.Bf1 Bg7 29.Rc1 f5 30.Qc2 Rdc8 31.Qf2 Rc7 32.Qe3 Ne4 33.Qxa7 Rxa7 34.Rc6 Bb2 35.Re3 Bd4 36.Rb3 Bc5 37.Rb2 Bxb4 38.Rxb4 Rxa3 39.Rxb5 Rxb5 40.Bxb5 Ra1+ 41.Kg2 Ra2+ 42.Kg1 Rd2 43.Rc7 Kf8 44.Rxh7 Rd1+ 45.Kg2 Rxd5 46.Be2 Rd2 47.Kf1 d5 48.Ra7 d4 49.Ra3 Nc3 50.Bf3 Rxh2 51.Ra6 Kg7 52.Rd6 Rd2 53.Ke1 Rd3 54.Rd7+ Kf6 55.Kf2 Ke6 56.Rg7 Kf6 57.Rd7 g5 58.fxg5+ Kxg5 59.Re7 Kf6 60.Re8 Rd2+ 61.Ke1 Rd3 62.Kf2 Rd2+ 63.Ke1 Rb2 64.Rf8+ Ke5 65.Re8+ Kf6 66.Rf8+ Ke6 67.g4 Ke7 68.Rxf5 d3 69.Rc5 d2+ 70.Kf1 d1=Q+ 71.Bxd1 Nxd1 72.Re5+ Kf6 73.Re2 Rb3 74.Ke1 Ne3 75.Kd2 Nxg4 76.Kc2 Rg3 77.Kb2 Ne5 78.Kc2 Ke6 79.Rh2 Kd5 80.Rh5 Kd4 81.Rh8 Nc6 82.Rh4+ Kd5 83.Rh5+ Kc4 84.Kd2 Nd4 85.Rh8 Rd3+ 86.Ke1 Rf3 87.Kd2 Ne6 88.Ke2 Ra3 89.Rh4+ Kd5 90.Kf2 Ke5 91.Ke2 Nf4+ 92.Kd2 Ke4 93.Rg4 Rd3+ 94.Kc2 Rf3 95.Rh4 Rg3 96.Kd2 Ke5 97.Rh8 Kd4 98.Rd8+ Nd5 99.Ke2 Ra3 100.Kf2 Rb3 101.Ke2 Rb7 102.Kf2 Rf7+ 103.Ke2 Re7+ 104.Kf2 Ke4 105.Rf8 Nf4 106.Ra8 Nd3+ 107.Ke2 Nc5 108.Rd8 Ne6 109.Ra8 Rh7 110.Kd2 Rd7+ 111.Kc3 Nc7 112.Rh8 Nd5+ 113.Kd2 Nf4+ 114.Kc3 Rc7+ 115.Kd2 Rb7 116.Re8+ Kd4 117.Rd8+ Nd5 118.Ke2 1/2-1/2
2018.11.29 World Senior 50+ 2018
2466919 Koehler, G2 (2197) FM Dougherty, M (2155) 0-1
1.c4 g6 2.Nc3 Bg7 3.d4 c5 4.Nf3 cxd4 5.Nxd4 Nc6 6.e3 Nf6 7.Be2 O-O 8.Nc2 d6 9.e4 Nd7 10.Be3 Nc5 11.Nd4 f5 12.exf5 gxf5 13.f4 Bd7 14.Bf3 e5 15.fxe5 Nxe5 16.Bd5+ Kh8 17.O-O Qe7 18.Qd2 Ned3 19.Nf3 f4 20.Bxc5 Nxc5 21.Rae1 Qf6 22.Ne4 Nxe4 23.Rxe4 Rae8 24.b3 Bc6 25.Rfe1 Rxe4 26.Rxe4 Qa1+ 27.Re1 Qf6 28.Rd1 Rd8 29.Qa5 Qe7 30.Qxa7 Bxd5 31.Rxd5 Bc3 32.Rd3 Qg7 33.a3 Rg8 34.Qf2 Ba5 35.Qf1 Qb2 36.b4 Bb6+ 37.Kh1 Rxg2 38.Rxd6 Rf2 39.Qh3 Qb1+ 40.Ng1 Qe4+ 0-1
2018.11.28 World Senior 50+ 2018
2469147 GM Danielsen, Hen (2504) Koehler, G2 (2197) 1-0
1.e4 e6 2.d3 d5 3.Nd2 c5 4.g3 Nc6 5.Bg2 Nf6 6.Ngf3 Be7 7.O-O O-O 8.Re1 Re8 9.e5 Nd7 10.c4 Nb4 11.Bf1 dxc4 12.dxc4 Qc7 13.b3 b6 14.Bb2 f5 15.exf6 Bxf6 16.Qb1 Bb7 17.Ne4 Bxb2 18.Qxb2 Rad8 19.Re3 Nc6 20.Rae1 e5 21.Bg2 Nd4 22.Nc3 Nxf3+ 23.Bxf3 Bxf3 24.Rxf3 Nf6 25.Rfe3 a6 26.Qe2 Qc6 27.h3 Kf8 28.g4 h6 29.Qc2 Rd4 30.Rxe5 Rxe5 31.Rxe5 Qf3 32.Re3 Qc6 33.Qg6 Qd7 34.Rf3 Qf7 35.Qf5 Rd6 36.Nd5 Qe8 37.Qh7 Qf7 38.Nxf6 Rxf6 39.Qh8+ Ke7 40.Re3+ Re6 41.Rxe6+ Kxe6 42.Qb8 Qf3 43.Qxb6+ Kf7 44.Qxc5 Qxh3 45.Qc7+ 1-0
2018.11.27 World Senior 50+ 2018
2469093 Koehler, G2 (2197) IM Cummings, D (2331) 0-1
1.c4 e6 2.Nc3 d5 3.cxd5 exd5 4.d4 c6 5.Nf3 Nf6 6.Bg5 Be7 7.Qc2 Nbd7 8.e3 h6 9.Bh4 Nh5 10.Bxe7 Qxe7 11.Be2 Nhf6 12.O-O O-O 13.Rab1 a5 14.Rfe1 Re8 15.Bf1 Ne4 16.Nxe4 dxe4 17.Nd2 Nf6 18.Rbc1 Nd5 19.a3 Bf5 20.Qc5 Qf6 21.Nc4 Re6 22.Nb6 Nxb6 23.Qxb6 Re7 24.Rc5 a4 25.Ra5 Rxa5 26.Qxa5 b5 27.Qd8+ Kh7 28.Rc1 Re6 29.Qxf6 Rxf6 30.Rc5 Bd7 31.Be2 Rd6 32.Re5 Re6 33.Rc5 Rd6 34.Kf1 f5 35.Re5 Kg6 36.Ke1 Kf6 37.Kd2 Re6 38.Rc5 Rd6 39.Kc3 Be6 40.Kb4 Bd5 41.Rc1 Rd8 42.Kc5 g5 43.Rf1 Ke6 44.f3 h5 45.fxe4 Bxe4 46.Bf3 Bd5 47.Rf2 Rb8 48.Bxd5+ cxd5 49.Kc6 b4 50.axb4 Rxb4 51.Kc5 Rb3 52.Re2 h4 53.Kc6 g4 54.Kc5 g3 55.hxg3 hxg3 56.Kc6 a3 57.bxa3 Rxa3 58.Kc5 Rc3+ 59.Kb4 Rc1 60.Kb3 Kf6 61.Kb2 Rf1 62.Kc2 Kg5 63.Kd3 Kg4 64.Ra2 Rd1+ 65.Ke2 Rg1 66.Kd3 f4 67.exf4 Kxf4 68.Re2 Ra1 69.Re8 Ra3+ 70.Ke2 Ra2+ 71.Kf1 Rf2+ 72.Kg1 Rd2 73.Kf1 Rxd4 74.Rf8+ Ke4 75.Re8+ Kd3 76.Rg8 Rf4+ 77.Ke1 Re4+ 78.Kf1 Re3 79.Ra8 d4 80.Ra3+ Ke4 81.Ra4 Rb3 82.Ra1 d3 83.Re1+ Kd4 84.Rc1 Rb2 0-1
2018.11.26 World Senior 50+ 2018
2469047 FM Metz, Ha (2296) Koehler, G2 (2197) 0-1
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.f4 d6 7.Be2 Nf6 8.Bf3 Be7 9.O-O Nc6 10.Nxc6 bxc6 11.e5 Nd5 12.Nxd5 cxd5 13.Re1 O-O 14.b3 dxe5 15.fxe5 Rb8 16.Bb2 Rd8 17.Qd2 Bb4 18.c3 Be7 19.Kh1 Bd7 20.Rac1 Qa5 21.b4 Qc7 22.Bd1 h6 23.Bc2 Bb5 24.Rcd1 d4 25.cxd4 Bxb4 26.Qxb4 Qxc2 27.Rd2 Qg6 28.Qb3 Bc6 29.Qg3 Qxg3 30.hxg3 Rb5 31.Ba3 Rdb8 32.Kg1 Bd5 33.Bd6 R8b7 34.Rc1 Rb2 35.Rcc2 Rb1+ 36.Kf2 Ra1 37.a3 Rbb1 38.Rb2 Rf1+ 39.Ke3 Bc4 40.Rf2 Rae1+ 41.Kf4 g5+ 42.Kg4 Kg7 43.Rxf1 Rxf1 44.Kh3 h5 45.Kh2 Bd5 46.Be7 Kg6 47.Rb8 g4 48.Rb2 Kf5 49.Re2 Be4 50.Rd2 Bc6 51.Re2 Bb5 52.Rd2 Ke4 53.Bc5 Ke3 54.Ra2 Kd3 55.Bb4 Kxd4 56.Bd6 a5 57.Rc2 Bc4 58.Bc7 Kd3 59.Rb2 Kc3 60.Rb8 a4 61.Rb4 Ra1 62.Rxa4 Bd5 63.Ba5+ Kd3 64.Bb6 Ra2 65.Rd4+ Kc3 66.Kh1 Bxg2+ 67.Kg1 Bd5 68.Kf1 Rxa3 69.Rf4 Kd2 70.Kf2 Rb3 71.Be3+ Rxe3 72.Rd4+ Rd3 73.Rf4 Ra3 0-1
2018.11.23 World Senior 50+ 2018
2472550 Koehler, G2 (2197) Siedl, M (2071) 1-0
1.c4 e5 2.g3 Nf6 3.Bg2 c6 4.d4 exd4 5.Qxd4 d5 6.cxd5 cxd5 7.Nf3 Nc6 8.Qd1 Bb4+ 9.Nbd2 O-O 10.O-O Re8 11.a3 Bxd2 12.Bxd2 d4 13.Re1 Qb6 14.b4 Bf5 15.Qb3 h6 16.Rad1 Ne4 17.Bc1 Rad8 18.e3 dxe3 19.Bxe3 Rxd1 20.Rxd1 Qc7 21.Qc4 Qc8 22.Nh4 Bh7 23.Rc1 a6 24.a4 Qd7 25.b5 axb5 26.axb5 Ne5 27.Qd4 Qxd4 28.Bxd4 g5 29.Nf3 Nxf3+ 30.Bxf3 Rd8 31.Be3 Rd7 32.b6 Nd2 33.Bg2 Nb3 34.Rc8+ Kg7 35.h3 Na5 36.g4 Bd3 37.Bd2 Nc4 38.Bc3+ Kg6 39.Rg8+ Kh7 40.Rg7+ 1-0
2018.11.22 World Senior 50+ 2018
2472508 Neubauer, Ant (1913) Koehler, G2 (2197) 0-1
1.e4 c5 2.Nf3 e6 3.c3 Nf6 4.e5 Nd5 5.Bc4 d6 6.d4 cxd4 7.cxd4 Nc6 8.O-O dxe5 9.dxe5 Be7 10.a3 O-O 11.Re1 Re8 12.Qe2 b6 13.Nbd2 Na5 14.Ba2 Bb7 15.Ne4 Qd7 16.Nfg5 h6 17.Nf3 b5 18.b4 Nc4 19.Bxc4 bxc4 20.Be3 Nxe3 21.Qxe3 Bd5 22.Nc3 Bf8 23.Rad1 a5 24.b5 a4 25.Nd2 Qb7 26.f3 Rec8 27.Nde4 Bxe4 28.Nxe4 Qxb5 29.Rb1 Qa5 30.Nd6 Rc6 31.Qe4 Qc5+ 32.Kf1 Bxd6 33.exd6 Qxd6 34.Red1 Qc7 35.Rb4 Rc8 36.Rxa4 c3 37.Rc1 Qxh2 38.Kf2 Qd6 39.Rc2 Qc5+ 40.Kg3 Qg5+ 41.Kf2 Qc5+ 42.Kg3 Rd6 43.f4 Rcd8 44.Rc4 Rd3+ 0-1
2018.11.21 World Senior 50+ 2018
2472449 Jensen, Ste (2011) Koehler, G2 (2197) 1-0
1.c4 Nf6 2.Nf3 d6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O 6.Nc3 Nc6 7.Rb1 Bf5 8.d3 Qc8 9.Re1 Bh3 10.Bh1 h6 11.b4 e5 12.b5 Ne7 13.Ba3 Nd7 14.Nd2 Re8 15.Nb3 a6 16.Qd2 axb5 17.Nxb5 Nc6 18.Rec1 Be6 19.Bd5 Bf8 20.Bf3 Nd8 21.Bb4 Qb8 22.Ba5 c6 23.Bc7 Qc8 24.Nxd6 Qxc7 25.Nxe8 Qb8 26.d4 f6 27.d5 Bf5 28.e4 Bh3 29.d6 Ne6 30.Nc7 Nxc7 31.dxc7 Qxc7 32.c5 Be6 33.Qc2 Kg7 34.h4 h5 35.Bg2 Ra4 36.Kh2 Ra8 37.Bh3 Bxb3 38.axb3 Nxc5 39.b4 Nd7 40.b5 Nc5 41.Bf1 Ra4 42.bxc6 bxc6 43.Bc4 Qa7 44.Kg2 Be7 45.Rd1 Qa8 46.Rb2 Ra1 47.Rxa1 Qxa1 48.Ba2 Qe1 49.f3 Qa5 50.Qc4 Qd8 51.Qf7+ Kh6 52.Bc4 Nd3 53.Bxd3 1-0
2018.11.20 World Senior 50+ 2018
2472399 Koehler, G2 (2197) Spiess, Th (1975) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 e6 5.b3 Nbd7 6.Be2 Be7 7.Bb2 b6 8.cxd5 exd5 9.Nd4 Bb7 10.Nf5 Bf8 11.d4 g6 12.Ng3 Bg7 13.Ba3 c5 14.Nb5 O-O 15.Nd6 Bc6 16.Nb5 Re8 17.O-O a6 1/2-1/2
2018.11.19 World Senior 50+ 2018
2472328 GM Bischoff, K (2507) Koehler, G2 (2197) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 e4 5.Nd2 Qe7 6.Nb3 h6 7.h3 Bf5 8.g4 Bh7 9.g5 hxg5 10.Bxg5 c6 11.e3 Na6 12.a3 Bf5 13.Nd2 Nc7 14.d5 c5 15.Bg2 Qd7 16.Bxf6 gxf6 17.Qc2 O-O-O 18.O-O-O Be7 19.Bxe4 Bxe4 20.Ndxe4 f5 21.Ng3 f4 22.exf4 Rxh3 23.Rxh3 Qxh3 24.Rh1 Qg4 25.Qf5+ Qxf5 26.Nxf5 Kd7 27.Rh7 Rf8 28.Ne4 b5 29.b3 a6 30.Kc2 Na8 31.Rh6 1-0
2018.11.18 World Senior 50+ 2018
2472307 Koehler, G2 (2197) Melkevik, J (1865) 1-0
1.c4 f5 2.g3 Nf6 3.Bg2 d6 4.d4 g6 5.Nh3 Bg7 6.O-O O-O 7.d5 Na6 8.Nc3 Nc5 9.Nf4 e5 10.dxe6 c6 11.Be3 Nxe6 12.Qd2 Qe7 13.Rad1 Rd8 14.Nxe6 Bxe6 15.b3 d5 16.cxd5 Nxd5 17.Nxd5 Bxd5 18.Qc2 b6 19.Bxd5+ cxd5 20.Bd4 Rac8 21.Qb2 Rc7 22.e3 Bxd4 23.Rxd4 Rcd7 24.Rfd1 Qe6 25.Qd2 Qe7 26.f3 Qf6 27.e4 fxe4 28.fxe4 Rf8 29.exd5 g5 30.d6 h6 31.Qe3 Rfd8 32.Qd3 Rf8 33.Rf1 Qxf1+ 34.Qxf1 Rxf1+ 35.Kxf1 Kf7 36.Kf2 Ke6 37.Ke3 h5 38.Ke4 h4 39.g4 a6 40.Rd5 Kf6 41.Rf5+ 1-0
2018.07.12 World Senior Teams +50
2551179 Polster, W (2203) Koehler, G2 (2181) 1/2-1/2
1.e4 c5 2.Nc3 e6 3.Nf3 Nc6 4.Bb5 Nge7 5.d4 cxd4 6.Nxd4 Qc7 7.O-O a6 8.Re1 Nxd4 9.Qxd4 Nc6 10.Bxc6 dxc6 11.e5 c5 12.Qf4 Bd7 13.Ne4 Bc6 14.Rd1 Bxe4 15.Qxe4 Be7 16.Bf4 O-O 17.Rd3 Rfd8 18.Rad1 Rxd3 19.Rxd3 Rd8 20.Kf1 Rxd3 1/2-1/2
2018.07.09 World Senior Teams +50
2558408 Koehler, G2 (2181) Boehm, Mar (2172) 1/2-1/2
1.c4 e5 2.g3 Nc6 3.Bg2 Bc5 4.Nc3 a6 5.e3 h5 6.Nf3 d6 7.d4 Bb4 8.Qc2 h4 9.d5 h3 10.Bf1 Qf6 11.Nd2 Bxc3 12.Qxc3 Nce7 13.Be2 Nh6 14.O-O O-O 15.b4 b5 16.e4 Qg6 17.cxb5 f5 18.Qxc7 fxe4 19.Qxe7 Nf5 20.Qc7 Nd4 21.Bd1 e3 22.fxe3 Rxf1+ 23.Nxf1 Qe4 24.Qd8+ Kf7 25.Bh5+ g6 26.Qc7+ Kg8 27.Qd8+ Kf7 1/2-1/2
2018.07.07 World Senior Teams +50
2558336 Koehler, G2 (2181) De Cat, B (1906) 1-0
1.c4 d6 2.Nc3 e5 3.g3 Nf6 4.Bg2 Be7 5.Nf3 c6 6.O-O Bg4 7.h3 Bxf3 8.Bxf3 a5 9.d4 O-O 10.Be3 Nbd7 11.Bg2 Qc7 12.Qd2 Rad8 13.Rfd1 Rfe8 14.Rac1 Nf8 15.d5 Ng6 16.Qc2 Rc8 17.Qb3 c5 18.Nb5 Qb8 19.Qc3 b6 20.Qc2 Rcd8 21.Rf1 Rf8 22.Bd2 Ne8 23.Be4 Nf6 24.Bf5 Nh8 25.h4 g6 26.Bh3 Ne8 27.e4 Ng7 28.Bh6 f6 29.Kg2 Nf7 30.Be3 h6 31.Qd2 Kh7 32.Be6 g5 33.Rh1 Kg6 34.f4 gxf4 35.gxf4 exf4 36.Bxf7+ Kxf7 37.Bxf4 Nh5 38.Kh2 f5 39.Rcf1 Bf6 40.Bxh6 Rh8 41.Rxf5 Rdg8 42.Rhf1 Ke7 43.Rxh5 Qe8 44.Qf4 Rxh6 45.Qxd6+ Kf7 46.Rxh6 1-0
2017.11.11 World Senior 50+ 2017
2660741 Koehler, G2 (2207) GM Prie, E (2482) 0-1
1.c4 Nf6 2.Nc3 e5 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O h6 7.Ne1 c6 8.Nc2 Bxc3 9.dxc3 d5 10.cxd5 cxd5 11.Nb4 e4 12.Be3 Nc6 13.Nxc6 bxc6 14.Qa4 Bd7 15.Rad1 Qc8 16.Rfe1 Bh3 17.Bh1 Ng4 18.c4 Nxe3 19.fxe3 Be6 20.cxd5 cxd5 21.b3 a5 22.Rc1 Qb7 23.Qd4 Rec8 24.Bg2 Qb4 25.Kf2 Qa3 26.Qd2 Rab8 27.Red1 a4 28.Rxc8+ Rxc8 29.Qa5 Qxa2 30.bxa4 Rc2 31.Bf1 Rc4 32.Rd4 Rc1 33.Rb4 Kh7 34.Rb8 Qc2 0-1
2017.11.10 World Senior 50+ 2017
2660734 Koehler, G2 (2207) IM Petran, Pe (2330) 1-0
1.c4 g6 2.Nc3 Bg7 3.d4 c5 4.e3 cxd4 5.exd4 Nf6 6.Nf3 O-O 7.Bg5 h6 8.Bf4 d5 9.Qd2 Kh7 10.Bd3 Nc6 11.O-O Bg4 12.Ne5 dxc4 13.Nxc6 bxc6 14.Bxc4 Nd7 15.h3 Nb6 16.Bb3 Bf5 17.Rad1 Qd7 18.Be5 Rad8 19.Qe2 Nd5 20.Rfe1 Rfe8 21.Nxd5 cxd5 22.Bxg7 Kxg7 23.Qa6 Qc7 24.Rc1 Qb8 25.Qa5 e6 26.Rc5 Qf4 27.Rd1 Be4 28.Qd2 Qb8 29.f3 Bxf3 30.gxf3 Rc8 31.Qh2 Qb4 32.Qe5+ Kg8 33.Qe3 Rxc5 34.dxc5 Rc8 35.Rc1 d4 36.Qe5 d3 37.Qe3 d2 38.Rd1 Rxc5 39.Rxd2 Kh7 40.Kh2 Qb8+ 41.f4 Rf5 42.Rf2 a5 43.Bc2 Rb5 44.b3 Qc7 45.Be4 Rc5 46.Qd4 f5 47.Bg2 e5 48.fxe5 Rxe5 49.Kg1 h5 50.Qf4 Qc5 51.Kh2 Re1 52.Rf1 Re7 53.Rc1 Qa3 54.Rc8 Qb2 55.Rc7 Qg7 56.Rc5 Re2 57.Rc7 Re7 58.Rc2 Qf6 59.Rd2 g5 60.Qd4 Qxd4 61.Rxd4 Re2 62.Ra4 Re5 63.h4 Kg6 64.hxg5 Kxg5 65.Kg3 Rc5 66.Rc4 Re5 67.Kf3 Rd5 68.Kg3 Rd3+ 69.Kh2 Rd2 70.Ra4 f4 71.Rxa5+ Kg4 72.Kg1 f3 73.Bf1 h4 74.Ra8 f2+ 75.Kh2 Rb2 76.a4 Rxb3 77.a5 Rb1 78.Bh3+ Kh5 79.a6 f1=Q 80.Bxf1 Rxf1 81.a7 1-0
2017.11.08 World Senior 50+ 2017
2660707 Koehler, G2 (2207) IM Reprintsev, A (2361) 0-1
1.c4 e5 2.Nc3 Nc6 3.g3 d6 4.Bg2 Be6 5.d3 Qd7 6.Rb1 g6 7.b4 Bg7 8.b5 Nd8 9.a4 Ne7 10.Nd5 O-O 11.h4 c6 12.bxc6 bxc6 13.Nxe7+ Qxe7 14.h5 Rc8 15.Nf3 Bg4 16.hxg6 fxg6 17.O-O Qd7 18.Nh2 Bh3 19.Bxh3 Qxh3 20.e4 h5 21.Be3 Rf7 22.Qe1 Ne6 23.f3 Bf6 24.Qf2 Bg5 25.Bxg5 Nxg5 26.Qg2 Qe6 27.Kh1 Rcf8 28.f4 Nh7 29.fxe5 Qxe5 30.Rxf7 Rxf7 31.Rf1 Rxf1+ 32.Nxf1 Qa1 33.Qf2 Qxa4 34.Qd4 Qa3 35.Ne3 Qc5 36.Nc2 a5 37.Qc3 Qe5 38.Qe1 Nf6 39.Ne3 a4 40.Kg2 a3 0-1
2017.04.16 Zurich Korchnoi Open 2017
2767073 Koehler, G2 (2158) GM Jenni, F (2472) 0-1
1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O h6 7.Ne1 c6 8.Nc2 Bxc3 9.dxc3 d5 10.cxd5 cxd5 11.Be3 Nc6 12.Qd2 Bf5 13.Rfd1 Qe7 14.f3 Rad8 15.Bf2 Qe6 16.Ne3 Bh3 17.Nf1 Rd7 18.Qc2 a6 19.Ne3 e4 20.Nf1 b5 21.Qd2 Ne5 22.b3 Bxg2 23.Kxg2 exf3+ 24.exf3 Nxf3 0-1
2017.04.15 Zurich Korchnoi Open 2017
2767043 GM Miezis, N (2468) Koehler, G2 (2158) 1-0
1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 d6 5.e4 O-O 6.Nge2 c5 7.O-O Nc6 8.d3 Ne8 9.Be3 Nd4 10.Qd2 Nc7 11.Bh6 e5 12.Bxg7 Kxg7 13.f4 f6 14.Rab1 a5 15.fxe5 Nxe2+ 16.Qxe2 fxe5 17.a3 Rxf1+ 18.Rxf1 Bd7 19.Qd2 Qe7 20.Rb1 a4 21.Rf1 b5 22.cxb5 Bxb5 23.Bh3 Bc6 24.Bg4 Ne6 25.h4 h5 26.Bd1 Rf8 27.Rxf8 Qxf8 28.Nxa4 Nd4 29.Qf2 Qa8 30.Nc3 Qa6 31.Qd2 Bd7 32.Bxh5 gxh5 33.Qg5+ Kh7 34.Qe7+ Kh8 35.Qd8+ Kh7 36.Qxd7+ Kh8 37.Qe8+ Kg7 38.Qe7+ Kh8 39.Qf8+ Kh7 40.Qf7+ Kh6 41.Qf1 Qb6 42.Qc1+ Kh7 43.Kg2 Qa6 44.Qd1 Kh6 45.Nd5 Kg6 46.Qd2 Ne6 47.Ne3 Qc6 48.Nf5 1-0
2017.04.14 Zurich Korchnoi Open 2017
2767026 Koehler, G2 (2158) IM Ballmann, M (2395) 1/2-1/2
1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.a3 a6 6.Rb1 Rb8 7.b4 cxb4 8.axb4 b5 9.cxb5 axb5 10.Nf3 d5 11.d4 e6 12.O-O Nge7 13.e3 Nf5 14.Ne1 h5 15.h3 Bd7 16.Nd3 1/2-1/2
2017.01.14 16th Prague Open 2017
2799488 Koehler, G2 (2209) Kucera, T1 (1989) 1-0
1.c4 Nf6 2.Nc3 d6 3.d4 g6 4.e4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Ne8 10.Nd3 f5 11.Bd2 Nf6 12.f3 f4 13.c5 Rf7 14.Rc1 g5 15.a4 h5 16.Nb5 Ng6 17.cxd6 cxd6 18.Qc2 Ne8 19.Nf2 a6 20.Na3 Nf6 21.Nc4 Ne8 22.Ba5 Qf6 23.Nb6 Bd7 24.Nxa8 g4 25.Nb6 g3 26.Nxd7 gxf2+ 27.Rxf2 Rxd7 28.Qc8 Re7 29.Bd8 Kf7 30.Bxe7 Nxe7 31.Qxb7 1-0
2017.01.14 16th Prague Open 2017
2801111 GM Ringoir, T (2496) Koehler, G2 (2209) 1-0
1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 Bd6 5.g3 exd5 6.cxd5 Bc7 7.d6 Ba5 8.Bg2 Nc6 9.Nh3 O-O 10.O-O Bxc3 11.bxc3 Re8 12.e4 Qa5 13.Qc2 b5 14.f4 h6 15.e5 Ng4 16.Bf3 h5 17.Ng5 g6 18.Bd5 1-0
2016.11.30 World Senior 50+ 2016
2818334 Koehler, G2 (2182) Cafolla, P (1996) 1-0
1.c4 e5 2.Nc3 Nf6 3.g3 Bb4 4.Bg2 O-O 5.Nf3 Re8 6.O-O Bxc3 7.dxc3 h6 8.Ne1 a5 9.a4 Na6 10.Nc2 d6 11.Ne3 Nc5 12.Nd5 Bd7 13.Qc2 Nxd5 14.cxd5 Qc8 15.Re1 Re7 16.b3 Bh3 17.b4 Bxg2 18.Kxg2 Nd7 19.Qb3 b6 20.Qc4 Nf6 21.Bd2 Qb7 22.e4 Ra7 23.f3 Re8 24.Reb1 Rea8 25.b5 Re8 26.Re1 Qc8 27.Rad1 Ra8 28.Be3 Rf8 29.h3 Qd7 30.Bc1 Rae8 31.f4 exf4 32.gxf4 Re7 33.e5 Rfe8 34.e6 fxe6 35.dxe6 Qc8 36.f5 Qb7+ 37.Kh2 Qf3 38.Rf1 Qh5 39.Rd4 Rf8 40.Rh4 Qe8 41.Rg1 Kh8 42.Qd4 Kh7 43.Bg5 Kh8 44.Rxh6+ gxh6 45.Bxf6+ Kh7 46.Bxe7 Qxe7 47.Qg4 Qf6 48.Rg3 d5 49.h4 Re8 50.h5 Kh8 51.Qg6 Qh4+ 52.Kg1 1-0
2016.11.29 World Senior 50+ 2016
2818248 Mohapl, P (2066) Koehler, G2 (2182) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.e4 e5 5.Nf3 Be7 6.Be2 O-O 7.O-O Re8 8.Qc2 c6 9.Rd1 Bf8 10.b3 exd4 11.Nxd4 Nc5 12.f3 a5 13.Rb1 Qc7 14.Qd2 d5 15.cxd5 Bd6 16.g3 Bxg3 17.Bf1 Be5 18.Kh1 cxd5 19.Ndb5 Qe7 20.exd5 Bf5 21.d6 Qd7 22.Nc7 Bxb1 23.Nxa8 Rxa8 24.Nxb1 Qf5 25.Ba3 Ncd7 26.Qg2 Rc8 27.Bd3 Qf4 28.Bc4 Qh4 29.Bc1 Qh5 30.Rg1 g6 31.f4 Bd4 32.Rf1 Qf5 33.Na3 Re8 34.Nb5 Bc5 35.Qxb7 Ne4 36.Nc7 Rf8 37.Ne6 Ng3+ 38.Kg2 Nxf1 39.Qxd7 Ne3+ 40.Bxe3 Bxe3 41.Kf3 Bg1 42.Nxf8 Kxf8 43.Qxf5 gxf5 44.h3 Bc5 45.d7 Ke7 46.Bd3 Kxd7 47.Bxf5+ Ke7 48.Bxh7 Ke6 49.Kg4 Kf6 50.Bd3 Bb4 51.Kf3 Ke6 52.Bc4+ Kf6 53.Ke4 Kg6 54.f5+ Kf6 55.Be2 Ke7 56.Kd5 Kd7 57.Bh5 f6 58.Be2 1-0
2016.11.28 World Senior 50+ 2016
2818218 Kabyzhanov, Bulat (2039) Koehler, G2 (2182) 1/2-1/2
1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 Be7 6.Bd3 Nbd7 7.h3 Nf8 8.Be3 Ng6 9.g3 a6 10.Nge2 Bd7 11.f3 Nh5 12.Bf2 h6 13.Qc2 Qa5 14.Kf1 b5 15.b3 O-O 16.Kg2 Rab8 17.cxb5 axb5 18.a4 bxa4 19.bxa4 Ra8 20.Nb5 Rfb8 21.Qc3 Qxc3 22.Nbxc3 Rb4 23.Bb5 Nf8 24.Rhb1 Rxb1 25.Rxb1 Bd8 26.f4 exf4 27.gxf4 g5 28.e5 Nxf4+ 29.Nxf4 gxf4 30.exd6 Bf5 31.Bc6 Ra5 32.Rb7 Bf6 33.Be1 Ra8 34.Kf3 Ng6 35.Rxf7 Kxf7 36.Bxa8 Be5 37.Nb5 Bd3 38.d7 Ke7 39.Bc6 Bb8 40.d6+ Bxd6 41.Bc3 Ne5+ 42.Bxe5 Bxe5 43.a5 Bxb5 44.Bxb5 c4 45.a6 Bd4 46.Ke4 Be3 1/2-1/2
2016.11.27 World Senior 50+ 2016
2820356 Koehler, G2 (2182) IM Syrchikov, A (2416) 1/2-1/2
1.c4 e5 2.g3 Nf6 3.Bg2 d5 4.cxd5 Nxd5 5.Nc3 Nb6 6.Nf3 Nc6 7.O-O Be7 8.Rb1 Be6 9.b4 a6 10.a3 O-O 11.d3 f6 12.Bb2 Qd7 13.Re1 Kh8 14.Ne4 Nd5 15.Qc2 Bh3 16.Bh1 Rac8 17.Red1 Qe6 18.Rbc1 Rfd8 19.d4 exd4 20.Nxd4 Nxd4 21.Rxd4 c6 22.e3 b6 23.Qe2 f5 24.Nc3 Nxc3 25.Bxc3 Rxd4 26.Bxd4 c5 27.Qxa6 f4 28.bxc5 bxc5 29.Qxe6 Bxe6 30.Be5 fxe3 31.fxe3 Bb3 32.h4 c4 33.a4 Bc5 34.Kf2 Rf8+ 35.Ke2 Re8 36.Bf4 Ba3 37.Rc3 Bb4 38.Rc1 Bxa4 39.Bd5 c3 40.Kd3 c2 41.e4 Rc8 42.Bc4 Rd8+ 43.Bd5 Bb3 44.Ra1 Bxd5 45.exd5 Rxd5+ 46.Kxc2 Rd8 47.Ra7 Bf8 1/2-1/2
2016.11.26 World Senior 50+ 2016
2820271 Koehler, G2 (2182) Larsen, Pet (2248) 0-1
1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.e3 Bb4 6.Nge2 O-O 7.O-O d6 8.d4 Qe8 9.a3 Bxc3 10.Nxc3 f4 11.d5 fxg3 12.dxc6 gxh2+ 13.Kh1 bxc6 14.e4 Bg4 15.Qd3 Nh5 16.b3 Qe7 17.Be3 Qh4 18.c5 Rf6 19.cxd6 cxd6 20.Qc4+ Kh8 21.Qxc6 Raf8 22.Nd5 Rg6 23.Rac1 h6 24.Qc3 Bh3 25.Bxh3 Qxh3 26.Bg5 Qg4 27.Kxh2 Rxg5 28.Qh3 Qxe4 0-1
2016.11.24 World Senior 50+ 2016
2820191 IM Barle, J (2303) Koehler, G2 (2182) 1/2-1/2
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.exd5 exd5 5.Bg5 Be7 6.Bd3 Nc6 7.Nge2 Nb4 8.O-O Nxd3 9.Qxd3 O-O 10.Ng3 c6 11.Rae1 h6 12.Bc1 Bd6 13.h3 Re8 14.Qf3 Bd7 15.Rxe8+ Nxe8 16.Re1 Be6 17.Nh5 Qd7 18.Bf4 Bf5 19.Re2 Bg6 20.Be5 Bf8 21.Nd1 Be4 22.Qg3 Qf5 23.Qh4 Bxc2 24.Ne3 Qe4 25.Qg3 Bd3 26.Ng4 Qxe2 27.Nxh6+ Kh7 28.Ng4 Bg6 29.Qh4 Qe1+ 30.Kh2 Bxh5 31.Qxh5+ Kg8 32.Qg5 Qe4 33.Nh6+ Kh7 34.Nf5 f6 35.Qh5+ Kg8 36.Qg6 Qxf5 37.Qxf5 fxe5 38.dxe5 Rd8 39.Qe6+ Kh8 40.Qf5 Kg8 41.Qe6+ Kh8 42.Qg4 Kg8 43.Qg5 Rd7 44.Qg4 1/2-1/2
2016.11.23 World Senior 50+ 2016
2820119 Koehler, G2 (2182) FM Bergstrom, R (2296) 1-0
1.c4 b6 2.d4 Bb7 3.d5 e6 4.a3 f5 5.Nf3 Nf6 6.Nc3 Na6 7.Bf4 Ne4 8.Nb5 Bd6 9.Bxd6 Nxd6 10.Nxd6+ cxd6 11.e3 Nc7 12.Be2 O-O 13.O-O Qe7 14.dxe6 dxe6 15.Rc1 e5 16.Qd2 Rad8 17.Rfd1 Kh8 18.b4 f4 19.exf4 Rxf4 20.c5 bxc5 21.bxc5 d5 22.Qb2 Bc8 23.Qxe5 Qxe5 24.Nxe5 Re8 25.Nd3 Ra4 26.Bf3 Rxa3 27.Nb4 Be6 28.Bxd5 Nxd5 29.Nxd5 Bxd5 30.Rxd5 Rc3 31.Ra1 h6 32.h4 Re7 33.h5 Rc2 34.Rb1 Kh7 35.Rb8 g6 36.hxg6+ Kxg6 37.Rd6+ Kf5 38.Rxh6 Rc7 39.Rh5+ Kg6 40.g4 R2xc5 41.Rxc5 Rxc5 42.Kg2 Rc1 43.Kg3 Ra1 44.Rc8 a5 45.Rc6+ Kg7 46.f4 1-0
2016.11.22 World Senior 50+ 2016
2820030 FM Buchal, S (2339) Koehler, G2 (2182) 1/2-1/2
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 O-O 5.e4 d6 6.Nge2 c5 7.O-O Nc6 8.d3 Rb8 9.h3 a6 10.a4 Ne8 11.Be3 Nc7 12.d4 cxd4 13.Nxd4 Nxd4 14.Bxd4 Bxd4 15.Qxd4 Ne6 16.Qe3 Bd7 17.Nd5 Bc6 18.Rfd1 Bxd5 19.exd5 Ng7 20.a5 b6 21.axb6 Rxb6 22.Rdb1 a5 23.Qc3 Rb4 24.c5 dxc5 25.Qxc5 Nf5 26.Rxa5 Qb8 27.Ra8 Qd6 28.Rxf8+ Kxf8 29.Qc3 f6 30.Re1 Qb8 31.Re2 Rb3 32.Qc1 Qa7 33.Kh2 Kg7 34.Qc4 Qb8 35.Qc1 h5 36.Kg1 Qa7 37.Kh2 Qb8 38.Kg1 Qa7 39.Kh2 1/2-1/2
2016.11.21 World Senior 50+ 2016
2819952 Koehler, G2 (2182) IM Pastircak, M (2362) 1/2-1/2
1.c4 e5 2.g3 h5 3.Bg2 h4 4.Nc3 Nc6 5.d3 Bc5 6.e3 Nf6 7.a3 a5 8.Nge2 hxg3 9.hxg3 Rxh1+ 10.Bxh1 Qe7 11.Kf1 d6 12.d4 Bb6 13.Nd5 Nxd5 14.cxd5 Nb8 15.dxe5 dxe5 16.Bd2 Bh3+ 17.Bg2 Bxg2+ 18.Kxg2 Qd7 19.Bc3 Qf5 20.Qa4+ Nd7 21.Rd1 O-O-O 22.Bxa5 Rh8 23.Ng1 Qh5 24.Bxb6 Nxb6 25.Qc2 Nxd5 26.Qe2 Qh1+ 27.Kf1 Rd8 28.e4 Nf6 29.Rxd8+ Kxd8 30.f3 Qh6 31.Qd3+ Kc8 32.Qc3 Nd7 33.Ne2 Qe6 34.Kg2 b6 35.Nc1 Nb8 36.Nd3 Nc6 37.Nb4 Nxb4 38.Qxb4 Kb7 39.Qc3 f6 1/2-1/2
2016.11.20 World Senior 50+ 2016
2824100 GM Meister, Jak (2444) Koehler, G2 (2182) 1/2-1/2
1.e4 c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nf3 Nd7 7.Bd3 Ngf6 8.Bxg6 hxg6 9.Qe2 e6 10.Bg5 Be7 11.O-O-O Nd5 12.h4 Qa5 13.Kb1 Qb5 1/2-1/2
2016.11.19 World Senior 50+ 2016
2824065 Koehler, G2 (2182) Ruzicka, T (1796) 1-0
1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.d4 exd4 5.Qxd4 Be7 6.Bg2 O-O 7.Nf3 Na6 8.O-O Bc5 9.Qd1 Nc7 10.e4 a6 11.e5 Ng4 12.h3 Nxf2 13.Rxf2 Bxf2+ 14.Kxf2 Ne6 15.Be3 f5 16.exf6 Qxf6 17.Kg1 Qg6 18.Kh2 b5 19.Nh4 Qf7 20.cxb5 axb5 21.Nxb5 d5 22.Nd4 Bd7 23.Nhf3 Qf6 24.Qc2 Rac8 25.Rf1 Nd8 26.Ng5 Qg6 27.Rxf8+ Kxf8 28.Nxh7+ Kf7 29.Ng5+ Kf6 30.Qf2+ Ke7 31.Nb3 Ne6 32.Nxe6 Bxe6 33.h4 Qg4 34.Bg5+ Ke8 35.Qc5 Rc7 36.Qd6 Rd7 37.Qxc6 Kf7 38.Nc5 Ra7 39.Nxe6 Qxe6 40.Bxd5 1-0
2016.07.02 World Senior Teams +50
2901789 Koehler, G2 (2201) FM Ross, Pa (2282) 1/2-1/2
1.c4 g6 2.Nc3 d6 3.d4 Bg7 4.e4 Nc6 5.Be3 e5 6.d5 Nce7 7.Qd2 f5 8.f3 Nf6 9.Nge2 fxe4 10.Nxe4 Nf5 11.Bg5 h6 12.Bxf6 Bxf6 13.Nxf6+ Qxf6 14.Nc3 Qh4+ 15.Qf2 Qxf2+ 16.Kxf2 1/2-1/2
2016.07.01 World Senior Teams +50
2901685 Koehler, G2 (2201) Tichatschke, W (1975) 1-0
1.c4 e6 2.Nf3 Nf6 3.e3 b6 4.b3 Bb7 5.Bb2 Be7 6.Be2 O-O 7.O-O d5 8.d3 Nbd7 9.Nbd2 c5 10.Rc1 Rc8 11.Rc2 Re8 12.Qa1 Bf8 13.Rd1 Ng4 14.Nf1 Ba8 15.Ng3 Ngf6 16.cxd5 Nxd5 17.Rcd2 Qc7 18.Bf1 N5f6 19.Ne5 Qb7 20.Nxd7 Nxd7 21.Nh5 f6 22.d4 c4 23.bxc4 Rxc4 24.Nf4 Rcc8 25.Qb1 Bd6 26.Ne2 Qd5 27.Ng3 f5 28.f3 Nf6 29.Bd3 Qa5 30.Nf1 Bb4 31.Rc2 Bd5 32.Rdc1 Rxc2 33.Qxc2 b5 34.e4 fxe4 35.fxe4 Bb7 36.e5 Nd7 37.Bxh7+ Kh8 38.Bd3 Qd8 39.Bxb5 a6 40.Ba4 Re7 41.Qc7 1-0
2016.06.30 World Senior Teams +50
2901574 FM Seyb, D (2265) Koehler, G2 (2201) 1/2-1/2
1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6 6.Be2 Be7 7.O-O O-O 8.c4 Qd8 9.Nc3 cxd4 10.Qxd4 Nc6 11.Qxd8 Rxd8 12.Bf4 b6 13.Rfd1 Bb7 14.a3 Ne8 15.Rxd8 Rxd8 16.Rd1 Rxd1+ 17.Nxd1 f6 18.Be3 Nd6 19.Nd4 Nxd4 20.Bxd4 Nf5 21.Bc3 Kf7 22.b4 Ke8 23.f3 h5 24.g3 Bd6 25.Kf2 h4 26.f4 Kd7 27.Ne3 Nxe3 28.Kxe3 hxg3 29.hxg3 Bc6 30.Bd3 Ke7 31.Bc2 Bg2 32.Bd3 Bc6 1/2-1/2
2016.06.29 World Senior Teams +50
2901452 GM Arnason, J (2490) Koehler, G2 (2201) 1-0
1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Nce2 c5 6.c3 Nc6 7.Nf3 Be7 8.g3 b6 9.Bg2 cxd4 10.cxd4 Ba6 11.a3 Na5 12.Rb1 O-O 13.Nf4 Qc7 14.b4 Nc4 15.O-O b5 16.h4 Bb7 17.Ng5 h6 18.Qh5 hxg5 19.hxg5 Ndxe5 20.Bh3 g6 21.Nxg6 Nxg6 22.Bxe6 Bd6 23.Qxg6+ 1-0
2016.06.28 World Senior Teams +50
2901355 Bosbach, G (2217) Koehler, G2 (2201) 1/2-1/2
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nf3 O-O 5.O-O d6 6.Nc3 c6 7.d4 Nbd7 8.e4 Qc7 9.h3 e5 10.Be3 Re8 11.Qc2 exd4 12.Nxd4 Nc5 13.b4 Ne6 14.Rad1 Nxd4 15.Bxd4 Be6 16.Na4 Nd7 17.Bxg7 Kxg7 18.f4 f6 19.Rf2 Red8 20.a3 Nb6 21.Nxb6 Qxb6 22.Bf1 Qe3 23.Kh2 Qxa3 24.Rfd2 Qxb4 25.Rb1 Qc5 26.Rxb7+ Bf7 27.Qb2 a5 28.g4 g5 29.e5 dxe5 30.fxg5 fxg5 31.Rf2 Rf8 32.Rfxf7+ Rxf7 33.Rxf7+ Kxf7 34.Qb7+ Kf6 35.Qxa8 Qf2+ 36.Bg2 Qf4+ 37.Kh1 Qc1+ 1/2-1/2
2016.06.27 World Senior Teams +50
2901246 Koehler, G2 (2201) Katz, R (2057) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.b3 e6 5.Bb2 Nbd7 6.Qc2 Bd6 7.d3 O-O 8.a3 Qe7 9.Nc3 dxc4 10.bxc4 e5 11.Be2 Re8 12.Nd2 Nc5 13.Na4 Bg4 1/2-1/2
2016.06.26 World Senior Teams +50
2903631 Koehler, G2 (2201) WFM Priedite, I (2067) 1-0
1.c4 e5 2.Nc3 d6 3.g3 Nc6 4.Bg2 Be6 5.d3 Qd7 6.Nd5 Nd8 7.e4 c6 8.Nc3 Nf6 9.Nf3 Be7 10.O-O h6 11.c5 Bg4 12.cxd6 Qxd6 13.Be3 Ne6 14.h3 Bxf3 15.Bxf3 O-O 16.Qb3 Qb4 17.Qc2 Rfd8 18.Rfd1 Nd4 19.Bxd4 Qxd4 20.Ne2 Qb6 21.Rac1 Nd7 22.Kg2 Bc5 23.Rf1 Bd4 24.Nxd4 Qxd4 25.Be2 Nf8 26.Rfd1 Rd6 27.Qc3 Rad8 28.Qxd4 Rxd4 29.a3 R8d6 30.Rc3 g6 31.Kf3 Ne6 32.Ke3 h5 33.h4 c5 34.f4 f6 35.Rf1 b6 36.Bd1 Kg7 37.f5 Nf8 38.fxg6 c4 39.Be2 cxd3 40.Rxd3 Nxg6 41.Rfd1 Kh6 42.Rxd4 exd4+ 43.Rxd4 Rc6 44.Rc4 Rd6 45.Rc7 a5 46.Rc8 Re6 47.b4 axb4 48.axb4 f5 49.Bf3 Ne7 50.Rh8+ Kg6 51.Kf4 fxe4 52.Bxe4+ Kg7 53.Rxh5 Ng6+ 54.Bxg6 Kxg6 55.Rg5+ Kh6 56.Re5 Rf6+ 57.Ke4 Rg6 58.Rg5 Re6+ 59.Kd5 Rf6 60.Kc4 Re6 61.Kb5 Re4 62.Rf5 Kg6 63.Rf4 Re6 64.g4 Rd6 65.Rc4 Kf7 66.Rc7+ Kg8 67.Rc6 Rd4 68.Rg6+ Kf7 69.h5 Re4 70.g5 Rd4 71.Rf6+ Kg7 72.h6+ Kh7 73.Rxb6 Rd5+ 74.Ka6 Rxg5 75.b5 Rg1 76.Rc6 Rh1 77.Ka7 Kg8 78.b6 Ra1+ 79.Kb8 Rb1 80.Kc7 Rf1 81.b7 1-0
2016.01.14 15th Prague Open 2016
2953759 FM Pultorak, Jan (2317) Koehler, G2 (2202) 1-0
1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Bg5 Be7 5.e3 Nbd7 6.Bd3 O-O 7.Nge2 Re8 8.O-O c6 9.b4 Nf8 10.Qb3 Ng4 11.Bxe7 Qxe7 12.h3 Nh6 13.b5 Qh4 14.Ng3 Bxh3 15.gxh3 Qxh3 16.Rfe1 Ng4 17.Qc2 h5 18.Bf5 exd4 19.Bxg4 Qxg4 20.exd4 h4 21.Qf5 Qxd4 22.Nge4 d5 23.cxd5 cxd5 24.Nxd5 Re6 25.Rad1 Qb2 26.Ng5 Rg6 27.Ne7+ 1-0
2016.01.12 15th Prague Open 2016
2953716 FM Shevchenko, Kirill (2373) Koehler, G2 (2202) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 a6 7.Be2 Qc7 8.Qd2 b5 9.a3 Bb7 10.f3 Nbd7 11.O-O-O d5 12.exd5 Nxd5 13.Nxd5 Bxd5 14.Bf4 Qb7 15.Nf5 Nb6 16.Rhe1 f6 17.Bd6 Qd7 18.Bxf8 Rxf8 19.Qe3 Rb8 20.Nxg7+ Qxg7 21.Rxd5 Nxd5 22.Qxe6+ Ne7 23.Bxb5+ Rxb5 24.Qc8+ Kf7 25.Rxe7+ Kxe7 26.Qc7+ Ke6 27.Qxg7 Rd8 28.Qxh7 Rbd5 1-0
2016.01.11 15th Prague Open 2016
2953698 Koehler, G2 (2202) FM Hoefelsauer, T (2304) 1-0
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 Bf5 5.Qb3 Qb6 6.Qxb6 axb6 7.cxd5 cxd5 8.Nd4 Bd7 9.f4 Nc6 10.Ncb5 Nxd4 11.Nxd4 g6 12.b3 Bg7 13.Bb2 Ne4 14.Be2 O-O 15.d3 Nd6 16.Kd2 Rfc8 17.Rhb1 Rc5 18.a4 Rac8 19.Bd1 h5 20.b4 R5c7 21.Bb3 e6 22.Rc1 Nf5 23.Nxf5 Bxb2 24.Ne7+ Kf8 25.Nxc8 Bxc1+ 26.Rxc1 Rxc1 27.Kxc1 Bxc8 28.e4 dxe4 29.dxe4 Bd7 30.b5 f6 31.e5 fxe5 32.fxe5 g5 33.Bd1 h4 34.Bf3 Bc8 35.Kd2 Kg7 36.Ke3 Kg6 37.Be4+ Kh5 38.Kf3 Kh6 39.Ke3 Kg7 40.Kd4 Kf7 41.Ke3 Kg7 42.h3 Kg8 43.Kf3 Kg7 44.g3 hxg3 45.Kxg3 Kh6 46.Kg4 Kg7 47.Kxg5 Kf7 48.Kh6 Bd7 49.Bxb7 Be8 50.Bc6 1-0
2016.01.09 15th Prague Open 2016
2955660 Koehler, G2 (2202) GM Sergeev, Vl (2452) 1/2-1/2
1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nf6 5.Be2 O-O 6.Nf3 Nbd7 7.O-O e5 8.Re1 h6 9.Rb1 Nh7 10.Bf1 Ng5 11.Nxg5 exd4 12.Nb5 hxg5 13.Nxd4 g4 14.Nc2 Ne5 15.Bf4 Be6 16.b3 c5 17.Qd2 Qe7 18.Rbd1 Rad8 19.Ne3 Rd7 20.Be2 Qh4 21.Nd5 Bxd5 22.Qxd5 Re8 23.Qd2 Bf6 24.Bg3 Qh8 25.Qf4 Bg7 26.Qd2 b6 27.Qd5 Qh6 1/2-1/2
2016.01.08 15th Prague Open 2016
2955628 Koehler, G2 (2202) Pesola, J (1907) 1/2-1/2
1.c4 f5 2.g3 Nf6 3.Bg2 d6 4.d4 e6 5.Nc3 Be7 6.Nh3 O-O 7.O-O c6 8.e4 fxe4 9.Nxe4 Nxe4 10.Bxe4 e5 11.Bg2 Bf5 12.dxe5 dxe5 13.Qb3 Qb6 14.Qc3 Qd4 15.Qxd4 exd4 16.Rd1 Bf6 17.Bf4 Bc2 18.Bd6 Rd8 19.c5 d3 20.Be4 Bxb2 21.Rab1 Bxb1 22.Rxb1 d2 23.Bc2 Bf6 24.Rxb7 Na6 25.Kg2 Bd4 26.Ng5 Nxc5 27.Bxc5 Bxc5 28.Bb3+ Rd5 29.Bxd5+ cxd5 30.Rb1 Re8 31.Kf1 Bb4 32.Nf3 Bc3 33.Rd1 Re4 34.Nxd2 Ra4 35.Nf3 d4 36.a3 a5 37.Ke2 Rxa3 1/2-1/2
2015.10.14 World Blitz 2015
2982403 Koehler, G2 (2173) FM Przybylski, W (2354) 0-1
1.c4 e5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 6.Nf3 Nc6 7.O-O Be7 8.Rb1 a5 9.d3 O-O 10.a4 Be6 11.Nb5 f6 12.Be3 Nd5 13.Nd2 Ncb4 14.Ne4 Nxe3 15.fxe3 c6 16.Nbc3 f5 17.Nf2 Bc5 18.Qd2 Qg5 19.Ncd1 Nd5 20.Nh3 Bxe3+ 21.Nxe3 Qxe3+ 22.Qxe3 Nxe3 23.Rf2 h6 24.Kh1 Rad8 25.Ng1 Nxg2 26.Kxg2 Rd4 27.Nf3 Bd5 28.Ra1 Rb4 29.e3 Rb3 30.Rd2 e4 31.dxe4 Bxe4 32.Kf2 Bd5 33.Nd4 Rb4 34.Ra3 g6 35.Rc2 Kf7 36.Ke2 Re8 37.Kd2 Be4 38.Rc5 Rxb2+ 39.Kc3 Rxh2 40.Rb3 Re7 41.Rxa5 Bd5 42.Rb6 Rxe3+ 43.Kb4 Rb2+ 44.Kc5 Rc3+ 0-1
2015.10.14 World Blitz 2015
2981933 GM Pavlovic, Milos (2481) Koehler, G2 (2173) 1-0
1.e4 e6 2.Qe2 c5 3.g3 Nc6 4.Nf3 g6 5.Bg2 Bg7 6.O-O d6 7.c3 Nge7 8.Rd1 O-O 9.d4 cxd4 10.cxd4 d5 11.e5 b6 12.Nc3 Nb4 13.Bf4 h6 14.h4 Nf5 15.Qd2 Kh7 16.a3 Nc6 17.b4 Bd7 18.Bh3 Rc8 19.Rac1 a6 20.Bf1 Nb8 21.Bd3 Qe7 22.Kg2 b5 23.Rh1 Rc4 24.Bxc4 dxc4 25.d5 exd5 26.Nxd5 Qe6 27.h5 Bc6 28.hxg6+ fxg6 29.Ng5+ 1-0
2015.10.14 World Blitz 2015
2982217 Koehler, G2 (2173) WGM Berend, E (2370) 1/2-1/2
1.c4 e5 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.e3 O-O 6.Nge2 d6 7.d3 Nc6 8.O-O Be6 9.Nd5 Rb8 10.Rb1 Ne7 11.Nxf6+ Bxf6 12.Qa4 a6 13.Nc3 Bg7 14.e4 c6 15.Qc2 b5 16.b3 Qd7 17.Bg5 f6 18.Be3 Bh3 19.d4 Bxg2 20.Kxg2 Qb7 21.d5 c5 22.Qe2 f5 23.Bg5 f4 24.f3 Nc8 25.g4 Qd7 26.Bh4 Bf6 27.Bxf6 Rxf6 28.Qf2 Rf8 29.h4 bxc4 30.bxc4 Rb4 31.Rxb4 cxb4 32.Nb1 Qc7 33.Rc1 Qc5 34.Qxc5 dxc5 35.Nd2 Nd6 36.Nb3 Rc8 37.Na5 1/2-1/2
2015.10.14 World Blitz 2015
2982499 FM Bruedigam, M (2375) Koehler, G2 (2173) 0-1
1.e4 e6 2.d4 d5 3.exd5 exd5 4.Bd3 c5 5.c3 Nc6 6.Ne2 Bd6 7.h3 Nge7 8.O-O O-O 9.dxc5 Bxc5 10.Nd2 Ne5 11.Bc2 Bf5 12.Nb3 Bb6 13.Bf4 N5g6 14.Bg3 Qd7 15.Ned4 Be4 16.Re1 f5 17.f3 Bxc2 18.Qxc2 f4 19.Bf2 Nf5 20.Nxf5 Rxf5 21.Rad1 Rg5 22.Kh2 Bxf2 23.Qxf2 Rg3 24.Qd4 Rd8 25.Re2 Qf5 26.Nd2 Nh4 27.Rde1 Nxg2 28.Re8+ Rxe8 29.Rxe8+ Kf7 0-1
2015.10.14 World Blitz 2015
2981746 Koehler, G2 (2173) Cordeiro, M (2228) 0-1
1.c4 e5 2.Nc3 Nc6 3.g3 f5 4.Bg2 Nf6 5.e3 Bc5 6.Nge2 d6 7.d4 Bb6 8.O-O O-O 9.d5 Ne7 10.Na4 Qe8 11.Nxb6 axb6 12.a3 Bd7 13.Bd2 b5 14.b3 bxc4 15.bxc4 Qh5 16.Nc3 Qxd1 17.Rfxd1 Ra7 18.Rdb1 Rfa8 19.Bc1 e4 20.Bf1 Ng6 21.Rb3 Ne5 22.Rab1 b6 23.Kg2 Ba4 24.R3b2 Nfd7 25.Rd2 Nc5 26.h3 Ncd3 27.Bxd3 Nxd3 28.g4 g6 29.Kf1 Bd7 30.gxf5 gxf5 31.Ke2 Kf7 32.Nb5 Bxb5 33.cxb5 Rg8 34.Rd1 Rg2 35.Rf1 Rh2 36.Rb3 Ke7 37.Bd2 Kd7 38.Be1 Nc1+ 39.Kd1 Nxb3 0-1
2015.10.14 World Blitz 2015
2982029 Koehler, G2 (2173) Thornton, G (2207) 1-0
1.c4 e5 2.Nc3 Bb4 3.g3 Bxc3 4.dxc3 d6 5.Bg2 Nf6 6.Nf3 O-O 7.O-O Be6 8.b3 h6 9.Ne1 Qc8 10.Nc2 Bh3 11.Ne3 Nc6 12.Nd5 Nxd5 13.cxd5 Ne7 14.c4 Bxg2 15.Kxg2 f5 16.Bb2 f4 17.Qd3 Qg4 18.Qf3 Qg6 19.Qc3 Nf5 20.h3 fxg3 21.fxg3 Qg5 22.Bc1 Qg6 23.Bb2 Nd4 24.Qd3 Qxd3 25.exd3 Nf5 26.Bc1 Rae8 27.Bd2 Nd4 28.Rxf8+ Rxf8 29.Rf1 Rxf1 30.Kxf1 Kf7 31.Be3 Nf5 32.Bf2 a6 33.Ke2 c6 34.dxc6 bxc6 35.g4 Ne7 36.Kf3 Ke6 37.Be3 Ng6 38.Kg3 Ne7 39.Kf3 Ng8 40.Kg3 Nf6 41.Kf3 d5 42.cxd5+ cxd5 43.b4 Ne8 44.a4 Nd6 45.Bc5 Nb7 46.Bf8 Kf7 47.Bc5 g6 48.Be3 h5 49.gxh5 gxh5 50.Kg3 Kg6 51.Kf3 Kf5 52.b5 axb5 53.axb5 d4 54.Bd2 Ke6 55.Bb4 Kd5 56.Bf8 Nc5 57.Bxc5 Kxc5 58.Ke4 Kxb5 59.Kxe5 Kc5 60.Ke4 Kd6 61.Kxd4 Ke6 62.Kc5 Kf5 63.d4 Kg5 64.d5 Kh4 65.d6 Kxh3 66.d7 h4 67.d8=Q Kg3 68.Qg5+ Kh3 1-0
2015.10.14 World Blitz 2015
2982309 IM Ben Artzi, I (2419) Koehler, G2 (2173) 1-0
1.e4 e6 2.d4 d5 3.Nd2 a6 4.Ngf3 Nf6 5.e5 Nfd7 6.c3 c5 7.Bd3 Nc6 8.O-O Qb6 9.a3 cxd4 10.cxd4 Nxd4 11.Nxd4 Qxd4 12.Nf3 Qb6 13.b4 Be7 14.Be3 Qd8 15.Qc2 h6 16.Rae1 O-O 17.Nd4 Nxe5 18.Bh7+ Kh8 19.Bxh6 gxh6 20.Rxe5 Bf6 21.Rh5 Bg7 22.Nf3 Bd7 23.Bd3 Rc8 24.Qd2 Qf6 25.Ne5 Bb5 26.Ng4 Qd4 27.Rxh6+ Kg8 1-0
2015.10.14 World Blitz 2015
2982591 Koehler, G2 (2173) IM Carlstedt, J (2442) 0-1
1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Bg2 d5 5.d4 dxc4 6.dxe5 Qxd1+ 7.Nxd1 Bb4+ 8.Kf1 Ng4 9.Nf3 Nd7 10.Bf4 O-O 11.h3 Nh6 12.Ne3 c3 13.bxc3 Bxc3 14.Rc1 Bb4 15.Bxh6 gxh6 16.Nf5 h5 17.Rc4 a5 18.Rh4 Nxe5 19.Rxh5 Rd8 20.e3 Ng6 21.Nh6+ Kg7 22.Nf5+ Bxf5 23.Rxf5 f6 24.h4 Bd6 25.h5 Ne7 26.h6+ Kf7 27.Rfh5 a4 28.Ke2 a3 29.Rb1 Ra7 30.Nd4 Be5 31.Nf5 Nd5 32.Bxd5+ Rxd5 33.Rh4 b5 34.Rg4 Rad7 35.Kf3 Kf8 36.Rc1 c5 37.Rg7 b4 38.e4 Rd3+ 39.Kg4 Bc3 40.Rh1 Rxg7+ 41.hxg7+ Kg8 42.Rb1 Rd7 43.f4 Rxg7+ 44.Nxg7 Kxg7 45.Kf5 c4 46.e5 fxe5 47.fxe5 b3 48.axb3 a2 49.Rd1 cxb3 50.Rd7+ Kf8 51.Ke6 a1=Q 52.Rd8+ Kg7 53.Rd7+ Kg6 0-1
2015.10.14 World Blitz 2015
2981841 Sawlin, L (2258) Koehler, G2 (2173) 1-0
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Qc7 6.Nc3 Nc6 7.Nb3 Nf6 8.O-O Be7 9.f4 d6 10.Qf3 O-O 11.Bd2 Bd7 12.Rae1 Rac8 13.Qg3 Rfe8 14.e5 Nd5 15.Nxd5 exd5 16.f5 Bf8 17.f6 g6 18.exd6 Bxd6 19.Qh4 Ne5 20.Re3 Nxd3 21.Rxd3 Qxc2 22.Rxd5 Qc6 23.Rh5 Re4 24.Qg5 Bf8 25.Bc3 Re2 26.Nd4 Qb6 27.Kh1 Re4 28.Qd5 Bc6 1-0
2015.10.14 World Blitz 2015
2982123 Hilverda, A (2384) Koehler, G2 (2173) 1-0
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 c5 5.c3 b6 6.h3 Bb7 7.Be2 O-O 8.O-O d6 9.Nbd2 Nbd7 10.Bh2 Rc8 11.a4 Qc7 12.a5 Rfe8 13.axb6 axb6 14.Qb3 Ra8 15.Bc4 Rf8 16.Rxa8 Bxa8 17.Ra1 Bc6 18.Ng5 e6 19.Bxe6 fxe6 20.Qxe6+ Kh8 21.Bxd6 Qb7 22.e4 h6 23.Nf7+ Rxf7 24.Qxf7 Nxe4 25.Nxe4 Bxe4 26.Re1 cxd4 27.cxd4 Kh7 28.h4 Bd5 29.Qe8 Nf6 30.Qe7 Qxe7 31.Rxe7 Kg8 32.Rc7 Ne4 33.Be5 Bxe5 34.dxe5 Nc5 35.f3 Be6 36.Re7 Bf7 37.f4 Nd3 38.Rb7 Nxb2 39.Rxb6 Kg7 40.Rxb2 Kf8 41.Rb7 Be6 42.Ra7 Bf5 43.Kf2 h5 44.Ke3 Ke8 45.Kd4 Kd8 46.Kd5 Ke8 47.Kd6 1-0
2015.10.13 World Blitz 2015
2981652 FM Wendt, J (2332) Koehler, G2 (2173) 1-0
1.Nf3 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.d4 O-O 6.Be2 e5 7.O-O Nc6 8.Be3 Ng4 9.Bg5 f6 10.Bc1 Nh6 11.d5 Ne7 12.b4 Nf7 13.a4 Bh6 14.Ba3 f5 15.Qc2 fxe4 16.Nxe4 Bf5 17.Bd3 Bxe4 18.Bxe4 Qd7 19.Rad1 Nf5 20.c5 Qc8 21.Rfe1 Ng5 22.Nxg5 Bxg5 23.Bb2 Be7 24.c6 b6 25.Rd3 a6 26.Red1 Qe8 27.g3 Bf6 28.Re1 Qf7 29.Rf3 Ne7 30.Qd3 Qg7 31.h4 a5 32.b5 Rae8 33.Kf1 Qh6 34.Ke2 Bg7 35.Kd1 Qh5 36.Kc2 Nf5 37.Re2 Nd4+ 38.Bxd4 exd4 39.Rxf8+ Rxf8 40.f3 Qh6 41.Rh2 Qh5 42.g4 Qh6 43.h5 g5 44.Re2 Qf6 45.Bf5 Kh8 46.Re6 Qf7 47.Qe4 Be5 48.Kd3 Rg8 49.Kc4 Rf8 50.Qd3 Rg8 51.Qe4 Rf8 52.Rxe5 dxe5 53.Qxe5+ Qg7 54.Kxd4 Qxe5+ 55.Kxe5 Rd8 56.Bd7 Kg7 57.d6 cxd6+ 58.Kxd6 Kf6 59.c7 Rf8 60.c8=Q 1-0
2015.10.13 World Blitz 2015
2980900 GM Bezold, M (2509) Koehler, G2 (2173) 1-0
1.c4 Nf6 2.g3 g6 3.Bg2 Bg7 4.Nc3 d6 5.d3 O-O 6.Nf3 e5 7.O-O Nc6 8.Rb1 Be6 9.b4 Qc8 10.b5 Ne7 11.Re1 h6 12.a4 c5 13.bxc6 bxc6 14.Ba3 Ne8 15.Ne4 Qc7 16.c5 d5 17.Nd6 Nf5 18.Rb7 Qa5 19.e4 Nfxd6 20.cxd6 Qa6 21.Qb1 Qxa4 22.Bc5 Qa5 23.Rc1 dxe4 24.dxe4 Nf6 25.Nxe5 Qd2 26.Nxc6 Ng4 27.Qc2 Qg5 28.h3 1-0
2015.10.13 World Blitz 2015
2981180 GM Godena, M (2513) Koehler, G2 (2173) 1-0
1.e4 e6 2.d4 d5 3.Nd2 a6 4.Ngf3 Nf6 5.Bd3 c5 6.c3 Nc6 7.O-O Be7 8.exd5 Nxd5 9.Nb3 cxd4 10.Nbxd4 Nxd4 11.Nxd4 O-O 12.Re1 Qc7 13.Qf3 Bf6 14.Qe4 g6 15.Bh6 Re8 16.Qxd5 1-0
2015.10.13 World Blitz 2015
2981460 GM Richter, Mic (2517) Koehler, G2 (2173) 1-0
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.Nge2 a5 11.Rd1 Be6 12.Nf4 Nb4 13.Nxe6 fxe6 14.Be2 Kf7 15.Kf2 Nd7 16.Be3 Nc2 17.f4 Nxe3 18.Kxe3 Bxc3 19.bxc3 Nc5 20.Rb1 Na4 21.Rhc1 Nc5 22.h4 h6 23.h5 1-0
2015.10.13 World Blitz 2015
2980712 GM Adhiban, Baskaran (2674) Koehler, G2 (2173) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.d5 b5 8.cxb5 a6 9.a4 axb5 10.Bxb5 Ba6 11.Bd2 Bxb5 12.axb5 Rxa1 13.Qxa1 Qb6 14.O-O c4+ 15.Kh1 Ng4 16.Qe1 Nd7 17.h3 Ngf6 18.e5 Ne8 19.e6 Nc5 20.exf7+ Rxf7 21.Ng5 Rf8 22.Qxe7 Nd3 23.Qe6+ Kh8 24.Nf7+ Rxf7 25.Qxf7 Nf6 26.Ne4 Ng8 27.Bc3 Bxc3 28.bxc3 Qe3 29.Ng5 Qe7 30.Qxe7 Nxe7 31.b6 Nc5 32.Nf7+ Kg7 33.Nxd6 1-0
2015.10.13 World Blitz 2015
2980994 Koehler, G2 (2173) IM Valdes, Le (2362) 0-1
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 Kh8 13.Rc1 c5 14.b4 b6 15.Rb1 f4 16.Nf2 g5 17.Rb3 h5 18.bxc5 bxc5 19.Nb5 Rf7 20.Ra3 Ng6 21.Ba5 Qg8 22.Nc7 Rb8 23.Ne6 Rbb7 24.Rb3 Bh6 25.Rxb7 Rxb7 26.Qc2 Bxe6 27.dxe6 Qxe6 28.Rb1 Qc8 29.Rb3 Qb8 30.Qd3 Rxb3 31.axb3 Bf8 32.Nd1 Be7 33.Qc2 Nf8 34.Nc3 Ne6 35.Bf1 Nd4 36.Qa2 Qxb3 37.Bc7 Qxa2 38.Nxa2 Nd7 39.Nc3 Nf6 40.Nb5 a6 41.Nxd6 Kg7 42.Nc8 Kf7 43.Bxe5 Nc6 44.Bb2 Nd7 45.Nxe7 Kxe7 46.Kf2 Ke6 47.Be2 Nde5 48.Ke1 Na5 49.Bxe5 Kxe5 50.Kd2 Kd4 51.Kc2 h4 52.Bf1 Nxc4 53.Kb3 Nd2+ 54.Kc2 Nxf1 55.Kb3 c4+ 0-1
2015.10.13 World Blitz 2015
2981274 Koehler, G2 (2173) IM Thiede, L (2437) 0-1
1.c4 Nf6 2.Nc3 g6 3.d4 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 Na6 7.O-O e5 8.Re1 c6 9.Bf1 exd4 10.Nxd4 Ng4 11.h3 Qb6 12.hxg4 Qxd4 13.Be3 Qxd1 14.Raxd1 Bxg4 15.Rxd6 Be6 16.Red1 Nb4 17.R1d2 Be5 18.a3 Bxd6 19.Rxd6 Nc2 20.Bg5 Na1 21.Bf6 Nb3 22.Na4 Na5 23.Nc5 b6 24.Nxe6 fxe6 25.e5 c5 26.g3 Rac8 27.Rxe6 Rfe8 28.Rd6 Rc6 29.Rd7 Rxf6 30.exf6 Rf8 31.Rg7+ Kh8 32.Rxa7 Rxf6 33.Rc7 Rd6 34.Bg2 Nxc4 35.Be4 Nxb2 36.Kg2 Nc4 37.a4 Nd2 38.Bb7 Nb3 39.Bc6 Nd4 40.Bb5 g5 41.f4 h6 42.fxg5 hxg5 43.Kh3 Ne6 44.Rb7 Nd8 45.Re7 Rd4 46.Kg2 Kg8 47.Kf3 Kf8 48.Rh7 g4+ 49.Ke3 Ne6 50.Rb7 Rb4 51.Rxb6 Ng7 52.Rc6 Nf5+ 53.Kf2 Rb2+ 54.Ke1 Nxg3 55.Rxc5 Ke7 56.Rg5 Rb1+ 57.Kf2 Ne4+ 58.Ke3 Nxg5 59.Kf4 Ne6+ 60.Kxg4 Nd4 61.Kf4 Nxb5 62.axb5 Rxb5 63.Ke4 Kd6 64.Kf4 Ke6 65.Kg4 Kf6 66.Kf4 Rb4+ 67.Ke3 Ke5 0-1
2015.10.13 World Blitz 2015
2981557 Koehler, G2 (2173) IM Camacho Collados, J (2383) 0-1
1.c4 Nf6 2.Nc3 c5 3.g3 g6 4.Bg2 Bg7 5.a3 O-O 6.Rb1 d6 7.b4 h5 8.bxc5 dxc5 9.Bxb7 Bxb7 10.Rxb7 h4 11.Nf3 h3 12.Qc2 Nc6 13.d3 Nd4 14.Nxd4 cxd4 15.Rb5 0-1
2015.10.13 World Blitz 2015
2980807 Koehler, G2 (2173) Lagunow, Raphael (2164) 0-1
1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 f5 7.d3 Nf6 8.O-O O-O 9.Rb1 Be6 10.Nd5 Rb8 11.b4 Ne7 12.Nxf6+ Bxf6 13.Qc2 d5 14.c5 g5 15.d4 e4 16.a4 Ng6 17.f4 exf3 18.Bxf3 Qd7 19.Bg2 Rbe8 20.b5 f4 21.e4 dxe4 22.Bxe4 Bxd4+ 23.Nxd4 Qxd4+ 24.Kh1 Bc4 25.Bxg6 Bd5+ 0-1
2015.10.13 World Blitz 2015
2981087 IM Carstensen, J (2352) Koehler, G2 (2173) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.Be3 Nc6 8.d5 Ne7 9.Nd2 Nd7 10.b4 f5 11.f3 Kh8 12.c5 Ng8 13.Nc4 Ndf6 14.cxd6 cxd6 15.Rc1 Rf7 16.O-O Bh6 17.Bxh6 Nxh6 18.Qd2 Nhg8 19.Nb5 Ne8 20.f4 a6 21.Nc3 b5 22.Na5 exf4 23.Rxf4 Bd7 24.exf5 Rxf5 25.Rcf1 Qb6+ 26.Kh1 Nef6 27.Rxf5 Bxf5 28.Bd3 Qd4 29.Rf3 Re8 30.Nb3 Qh4 31.Bxf5 Re1+ 0-1
2015.10.13 World Blitz 2015
2981371 Koehler, G2 (2173) WIM Zepeda, L (2106) 1-0
1.c4 Nf6 2.Nc3 g6 3.d4 Bg7 4.e4 d6 5.Be2 O-O 6.Nf3 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5 11.Bd2 Nf6 12.f3 f4 13.c5 g5 14.Rc1 Rf7 15.Nb5 Ng6 16.Ba5 b6 17.cxb6 cxb6 18.Be1 h5 19.a4 g4 20.Qc2 h4 21.Nc7 Rb8 22.Ne6 Bxe6 23.dxe6 Re7 24.Nb4 gxf3 25.gxf3 Kh7 26.Nc6 Qg8 27.Nxb8 Qxb8 28.Qc8 Qxc8 29.Rxc8 Rxe6 30.Rc7 Re7 31.Rxe7 Nxe7 32.Bc3 Nc6 33.Rd1 Ne8 34.Bb5 1-0
2015.09.13 14th Kesarovski-Stanchev
2998252 Koehler, G2 (2178) Ivelinov, H (2209) 1-0
1.c4 e5 2.Nc3 Nc6 3.g3 d6 4.Bg2 Be6 5.d3 Qd7 6.e3 h5 7.h4 Nh6 8.Nh3 Ng4 9.Qb3 Nd8 10.Ng5 f6 11.Nge4 c6 12.Qc2 Rc8 13.Nd2 Be7 14.Nb3 d5 15.Bd2 b5 16.Ne2 Nf7 17.Rc1 Nd6 18.cxd5 cxd5 19.Qb1 Rxc1+ 20.Qxc1 Nb7 21.Nc3 1-0
2015.09.11 14th Kesarovski-Stanchev
2998218 Koehler, G2 (2178) Galunova, T (2151) 0-1
1.c4 Nf6 2.Nc3 g6 3.e4 d6 4.d4 Bg7 5.Be2 O-O 6.Nf3 e5 7.O-O exd4 8.Nxd4 Re8 9.f3 Nc6 10.Be3 Nh5 11.Nxc6 bxc6 12.Qd2 a5 13.Rac1 Rb8 14.Rfd1 Qe7 15.Bd3 Be6 16.Re1 Qf8 17.b3 c5 18.Nb5 Re7 19.Bb1 Rd7 20.f4 f5 21.exf5 Bxf5 22.g3 Nf6 23.Kg2 c6 24.Nc3 d5 25.cxd5 cxd5 26.Na4 d4 27.Bg1 Bxb1 28.Rxb1 Rb4 29.Nb2 Qa8+ 30.Kf1 Nd5 31.Qg2 Qa6+ 32.Nc4 Nc3 33.Rbc1 Rxc4 34.bxc4 Qxc4+ 35.Re2 Re7 36.Rxc3 dxc3 37.Bxc5 Qxc5 38.Qa8+ Kf7 0-1
2015.09.10 14th Kesarovski-Stanchev
2998195 FM Michna, C (2272) Koehler, G2 (2178) 1-0
1.d4 c5 2.d5 e5 3.e4 d6 4.c4 Be7 5.Nf3 Nf6 6.Nc3 O-O 7.Be2 Na6 8.O-O g6 9.Ne1 Ne8 10.Nd3 Ng7 11.f4 f6 12.a3 Bd7 13.Be3 Qc8 14.Qd2 Qc7 15.Rad1 Rae8 16.b4 b6 17.Rb1 exf4 18.Bxf4 f5 19.e5 1-0
2015.09.09 14th Kesarovski-Stanchev
2998173 Koehler, G2 (2178) FM Petrov, Vl5 (2321) 0-1
1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.O-O e5 8.d3 Be7 9.Be3 O-O 10.Na4 b6 11.Rc1 Bd7 12.a3 Rc8 13.Bd2 Ne6 14.Nc3 Ned4 15.e3 Nxf3+ 16.Qxf3 Be6 17.Nd5 Bg5 18.b4 Qd6 19.b5 Nd4 20.exd4 Bxd2 21.Rc2 Bg5 22.dxe5 Qxe5 23.Qe4 Qd6 0-1
2015.09.08 14th Kesarovski-Stanchev
2998147 IM Cioara, A (2425) Koehler, G2 (2178) 1-0
1.d4 Nf6 2.c4 d6 3.Nf3 g6 4.g3 Bg7 5.Bg2 O-O 6.O-O Nc6 7.Nc3 a6 8.Bf4 Bf5 9.d5 Na5 10.Nd2 c5 11.e4 Bd7 12.Rc1 Nh5 13.Be3 b5 14.b3 Rb8 15.Qc2 bxc4 16.bxc4 Qc7 17.h3 Rb4 18.Qd3 Rfb8 19.g4 Nf6 20.f4 Nxg4 21.hxg4 Bxg4 1-0
2015.09.07 14th Kesarovski-Stanchev
2998128 Koehler, G2 (2178) IM Nikolov, Sas (2364) 1/2-1/2
1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nc6 5.Be3 e5 6.d5 Nd4 7.Nge2 Nxe2 8.Bxe2 Bh6 9.Bxh6 Nxh6 10.h4 O-O 11.Qd2 Kg7 12.O-O-O Bd7 13.Qg5 f6 14.Qg3 f5 15.f4 exf4 16.Qxf4 Qe7 17.Bf3 Rae8 18.Qe3 b6 19.Qd4+ Qe5 20.Qxe5+ Rxe5 21.Rde1 fxe4 22.Rxe4 Rxe4 23.Nxe4 Nf7 24.Rf1 Ne5 25.Be2 Rxf1+ 26.Bxf1 Bf5 27.Nf2 Ng4 28.Nxg4 Bxg4 1/2-1/2
2015.09.06 14th Kesarovski-Stanchev
2998113 Kubik, M (2247) Koehler, G2 (2178) 0-1
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Be2 Bb4 7.O-O Nf6 8.Qd3 O-O 9.Bg5 Nc6 10.Rad1 Be7 11.Nxc6 dxc6 12.f4 e5 13.Kh1 h6 14.Bxf6 Bxf6 15.f5 b5 16.Qd6 Ra7 17.a4 Rd8 18.Qc5 Rd4 19.axb5 axb5 20.Ra1 Rxa1 21.Rxa1 Qd6 22.Qxd6 Rxd6 23.Ra8 Rd8 24.Kg1 Kf8 25.Kf2 Ke7 26.Bd3 Kd6 27.Ra7 Bd7 28.b4 g6 29.g3 Bg5 30.Ke2 h5 31.Nb1 h4 32.gxh4 Bxh4 33.Nd2 Bg5 34.Nf3 Bf4 0-1
2015.09.05 14th Kesarovski-Stanchev
2998087 Koehler, G2 (2178) IM Manea, Al (2385) 0-1
1.c4 b6 2.Nc3 Bb7 3.e4 e6 4.d3 c5 5.Be2 d6 6.f4 Qh4+ 7.g3 Qd8 8.Bf3 Nc6 9.Nge2 Nf6 10.O-O Be7 11.Be3 Rc8 12.b3 Nd7 13.Rc1 a6 14.d4 cxd4 15.Nxd4 Nxd4 16.Bxd4 O-O 17.Qe2 Qc7 18.Bg2 Rfe8 19.f5 Bf6 20.Bxf6 Nxf6 21.fxe6 fxe6 22.e5 Bxg2 23.Kxg2 dxe5 24.Ne4 Nxe4 25.Qxe4 Rcd8 26.Rce1 Rd2+ 27.Rf2 Rxf2+ 28.Kxf2 Rd8 29.Re2 Rf8+ 30.Kg2 Qf7 31.Kh3 Qh5+ 32.Kg2 Qf7 33.Kh3 Qf1+ 34.Kh4 Rf5 35.Rd2 g5+ 36.Kg4 h5+ 37.Kxh5 0-1
2015.02.26 World Senior Teams +50
3077128 Koehler, G2 (2120) FM Chapman, T (2262) 1-0
1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nc7 6.Nf3 Nc6 7.O-O g6 8.d3 Bg7 9.a3 O-O 10.Bd2 Rb8 11.Rb1 Nd4 12.b4 Bg4 13.bxc5 Nxf3+ 14.exf3 Bf5 15.Ne4 Qxd3 16.Bf4 Qxd1 17.Rfxd1 e5 18.Bg5 b5 19.Be7 Rfc8 20.Rbc1 Bf8 21.Bxf8 Kxf8 22.Nd6 Rd8 23.Nxf5 gxf5 24.Bh3 Ne6 25.Bxf5 Nd4 26.Bd3 Rbc8 27.Kg2 h6 28.Be4 Rc7 29.f4 exf4 30.gxf4 Ke7 31.Rc3 f5 32.Bb1 Rg8+ 33.Rg3 Rxg3+ 34.fxg3 Nb3 35.Bxf5 Nxc5 36.g4 Ne6 37.Re1 Rc6 38.Rxe6+ Rxe6 39.Bxe6 Kxe6 40.Kf3 Kd5 41.Ke3 a5 42.Kd3 Kc5 43.h4 1-0
2012.10.21 Copenhagen Cup IMB 2012
3395044 Koehler, G2 (2160) GM Ninov, N (2507) 0-1
1.c4 c5 2.g3 g6 3.Bg2 Bg7 4.Nf3 Nc6 5.O-O e6 6.d3 Nge7 7.Nc3 O-O 8.Bf4 d5 9.Qc1 b6 10.Bh6 d4 11.Na4 Qd6 12.Rb1 Bd7 13.b3 Rae8 14.a3 Ne5 15.Bd2 Nxf3+ 16.exf3 Rc8 17.Qd1 b5 18.Nb2 Qa6 19.Qc2 bxc4 20.Nxc4 Nd5 21.f4 Rc7 22.Rfe1 Rd8 23.h4 Nc3 24.Bxc3 dxc3 25.Ne5 Qxa3 26.Qxc3 Bb5 27.Ra1 Qb4 28.Rec1 Qxc3 29.Rxc3 Bxe5 30.fxe5 Rxd3 31.Rxd3 Bxd3 32.h5 gxh5 33.Bf3 Bc2 34.Ra3 Bg6 35.Ra5 Kg7 36.Kf1 Bc2 0-1
2012.10.21 Copenhagen Cup IMB 2012
3395049 FM Rendboe, J (2233) Koehler, G2 (2160) 1-0
1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 Nd7 5.Nf3 e5 6.Be2 exd4 7.Nxd4 Ngf6 8.O-O O-O 9.Be3 Nc5 10.f3 Re8 11.Qd2 Ne6 12.Nb3 a5 13.Rad1 a4 14.Nc1 Nd7 15.Rfe1 c6 16.g3 a3 17.b3 Qf6 18.Nb1 c5 19.Nd3 Nd4 20.Rf1 Ne5 21.Nxe5 Qxe5 22.Bf4 Qe7 23.Nc3 Bd7 24.Nd5 Qd8 25.Bxd6 Bh3 26.Bxc5 Bxf1 27.Kxf1 Nxb3 28.Ne7+ Kh8 29.Qe3 Qa5 30.Bb6 Qh5 31.Nd5 Qxh2 32.Qxb3 Qxg3 33.Bd4 Qh3+ 34.Ke1 Qg3+ 35.Bf2 Qe5 36.Qd3 f5 37.exf5 gxf5 38.Kf1 Re6 39.f4 Qb2 40.Nc7 1-0
2012.10.20 Copenhagen Cup IMB 2012
3395035 Koehler, G2 (2160) WGM Rudolf, An (2294) 1/2-1/2
1.c4 e5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Nb6 6.Nf3 Nc6 7.d3 Be7 8.O-O O-O 9.Be3 Be6 10.h4 f6 11.d4 exd4 12.Nxd4 Nxd4 13.Bxd4 c6 14.Be3 Nc4 15.Bc1 Qa5 16.Qc2 Bb4 17.Ne4 Rad8 18.a3 Bd2 19.b3 Bxc1 20.Rfxc1 Nd6 21.Nc5 Bf5 22.Qa2 Qc7 23.b4+ Qf7 24.Qxf7+ Kxf7 25.a4 Rfe8 26.e3 Re7 27.Nb3 Be4 28.Nd4 Bxg2 29.Kxg2 Re5 30.Rc2 a5 31.bxa5 Rxa5 32.Nb3 Rd5 33.a5 Ra8 34.a6 bxa6 35.Rxc6 a5 36.Rc7+ Kg6 37.Ra4 h5 38.Rd7 Ra6 39.Nd4 Re5 40.Ne2 Kh6 41.Rd4 Nf5 42.Ra4 Nd6 43.Rd4 Nf5 44.Ra4 1/2-1/2
2012.10.20 Copenhagen Cup IMB 2012
3395039 GM Rusev, K (2549) Koehler, G2 (2160) 1-0
1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.Nf3 Nd7 5.e4 e5 6.Be2 Nh6 7.h4 f6 8.h5 g5 9.Be3 c6 10.d5 c5 11.Nd2 O-O 12.g4 Rf7 13.a3 Bf8 14.Kf1 Be7 15.Kg2 Qf8 16.b4 Bd8 17.Nb3 Bb6 18.Na4 cxb4 19.Nxb6 Nxb6 20.c5 Na4 21.f3 bxa3 22.Qc1 Nxc5 23.Nxc5 dxc5 24.Bxc5 Qd8 25.Bxa3 Rc7 26.Qd2 Bd7 27.d6 Rc6 28.Rab1 Rac8 29.Qa2+ Kh8 30.Rxb7 Rc2 31.Rb2 Rxe2+ 32.Rxe2 Bxg4 33.Rc2 Rxc2+ 34.Qxc2 Qd7 35.Qc3 1-0
2012.10.19 Copenhagen Cup IMB 2012
3395024 Koehler, G2 (2160) Rydstrom, Tom (2140) 0-1
1.c4 e5 2.g3 Nc6 3.Bg2 f5 4.Nc3 Nf6 5.d3 Bb4 6.Bd2 O-O 7.a3 Bxc3 8.Bxc3 d6 9.Nf3 f4 10.gxf4 exf4 11.Qd2 Nd7 12.Nd4 Nxd4 13.Bxd4 Ne5 14.Bd5+ Kh8 15.h4 Qe7 16.O-O-O c6 17.Bf3 c5 18.Bxe5 dxe5 19.Rdg1 Rb8 20.Qc3 b5 21.cxb5 Rxb5 22.Rg5 Bf5 23.Be4 Bxe4 24.dxe4 Rfb8 25.Qxe5 Qf6 26.Qxf6 gxf6 27.Rf5 Rxb2 28.Rd1 Rxe2 29.Rxf4 Rbb2 30.Rd7 Ra2 31.Kb1 Rxf2 32.Rg4 Rad2 33.Rgg7 Rf1# 0-1
2012.10.19 Copenhagen Cup IMB 2012
3395031 Haubro, M (2151) Koehler, G2 (2160) 1-0
1.e4 c5 2.Nf3 e6 3.Qe2 Nc6 4.c3 d5 5.d3 Be7 6.g3 Nf6 7.Bg2 O-O 8.O-O Re8 9.e5 Nd7 10.h4 f6 11.d4 Qb6 12.Rd1 Nf8 13.h5 Bd7 14.Bf4 f5 15.Bh3 h6 16.g4 fxg4 17.Bxg4 Nh7 18.Kh2 Rf8 19.Be3 Ng5 20.Nh4 Na5 21.Ng6 Rf7 22.Na3 cxd4 23.Nxe7+ Rxe7 24.cxd4 Rf8 25.Rg1 Ref7 26.Raf1 Qd8 27.f4 Ne4 28.Bh3 Kh8 29.Rg6 Qh4 30.Qg4 Qe7 31.Rg1 a6 32.Qg2 b5 33.f5 exf5 34.Bxh6 gxh6 35.Rg8+ 1-0
2012.10.18 Copenhagen Cup IMB 2012
3395013 Koehler, G2 (2160) FM Nielsen, LA (2260) 1/2-1/2
1.c4 b6 2.Nf3 Nf6 3.g3 Ba6 4.d3 e6 5.Bg2 c6 6.O-O Be7 7.e4 d5 8.cxd5 cxd5 9.e5 Nfd7 10.Re1 b5 11.a3 b4 12.axb4 Qb6 13.Nc3 Bxb4 14.Be3 Qc7 15.Rc1 Qa5 16.Ra1 Qc7 17.Rc1 Qa5 1/2-1/2
2012.10.18 Copenhagen Cup IMB 2012
3395022 FM Larsen, Ka (2297) Koehler, G2 (2160) 0-1
1.e4 c5 2.Nf3 e6 3.d3 Nc6 4.g3 d5 5.Nbd2 Nf6 6.Bg2 Be7 7.O-O O-O 8.Re1 a5 9.a4 b6 10.e5 Nd7 11.Nf1 f6 12.exf6 Nxf6 13.Bh3 e5 14.Bxc8 Qxc8 15.Nxe5 Nxe5 16.Rxe5 Bd6 17.Re1 Qh3 18.f3 Ra7 19.Bd2 Raf7 20.Qe2 Bc7 21.Qg2 Qh5 22.Re2 Qf5 23.Rae1 Qd7 24.b3 c4 25.d4 cxb3 26.cxb3 b5 27.Ra1 Bb6 28.Bc3 bxa4 29.Rxa4 Qb5 30.Nd2 Qd3 31.Ba1 Rc7 32.Re1 Rc2 33.Rd1 Re8 34.Qf1 Re2 35.Nc4 Rg2+ 36.Qxg2 Rxg2+ 37.Kxg2 Qxd1 38.Nxb6 Qxb3 0-1
2012.10.17 Copenhagen Cup IMB 2012
3395012 Koehler, G2 (2160) Rosenkilde, A (2260) 1-0
1.c4 Nf6 2.g3 e6 3.Bg2 d5 4.Nf3 Be7 5.O-O O-O 6.d4 dxc4 7.Qc2 a6 8.a4 Bd7 9.Ne5 Bc6 10.Nxc6 Nxc6 11.e3 Nd5 12.Qxc4 Na5 13.Qc2 c5 14.Bd2 cxd4 15.exd4 Rc8 16.Nc3 Nb4 17.Qe4 Nc4 18.Bc1 Nd6 19.Qe2 Bf6 20.Rd1 Qd7 21.d5 e5 22.h4 Rc7 23.Ne4 Be7 24.Nc3 Nc4 25.Ne4 Bd6 26.b3 Na5 27.Be3 Nxb3 28.Rab1 Nd4 29.Bxd4 exd4 30.Rxd4 a5 31.Qh5 h6 32.Nf6+ gxf6 33.Rg4+ Qxg4 34.Qxg4+ Kh8 35.Qf5 Kg7 36.Qg4+ Kh8 37.Qf5 Kg7 38.Re1 Rc4 39.Qd7 Bc5 40.Be4 Rg8 41.Kg2 Rd4 42.Re2 b6 43.Qf5 Rh8 44.Qd7 Rg8 45.Qg4+ Kf8 46.Qh5 Kg7 47.Qf5 Rh8 48.Bf3 Nd3 49.Be4 Ne5 50.f4 Nc4 51.Bf3 Rd1 52.Kh2 Ra1 53.Qd7 Ne3 54.d6 Rg8 55.Rxe3 Bxe3 56.Bd5 Rf8 57.Qg4+ Kh8 58.Qf5 Kg7 59.Be4 Ra2+ 60.Kh3 Rg8 61.Qh7+ Kf8 62.Qxh6+ Rg7 63.Qh8+ Rg8 64.Qxf6 Bg1 65.Qe7+ Kg7 66.Bg2 Rd2 67.f5 Rd4 68.f6+ Kh6 69.Bf3 Rd2 70.Be2 Bf2 71.g4 Kg6 72.Bd3+ Rxd3+ 73.Kg2 Rg3+ 74.Kxf2 Rxg4 75.d7 Rd4 76.h5+ Kf5 77.Qxf7 Rgg4 78.Qh7+ Kg5 79.Qg6+ Kh4 80.Qxg4+ 1-0
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