WORLDBASE

WORLDBASE Players IM Sieciechowicz, M

Stockfish
GameID: 0
FIDE Country B-Year Gender Standard Rapid Blitz
1130170 POL 1992 M 2391 2356 2336
59 games  / 1,568 games total
2026.07.01 Najdorf Mem Open A 2026
3462201 FM Rekuc, Patryk (2198) IM Sieciechowicz, M (2386) 1-0
1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.e3 Bg4 5.Nc3 e6 6.Qb3 Qb6 7.Qxb6 axb6 8.Ne5 Bf5 9.f3 h5 10.b3 Bd6 11.Bb2 Bh7 12.Kf2 Nbd7 13.Nxd7 Nxd7 14.e4 dxc4 15.Bxc4 e5 16.Ne2 b5 17.Bd3 Ba3 18.Bxa3 Rxa3 19.Rhc1 exd4 20.Bxb5 O-O 21.Bc4 b5 22.Bd3 Ne5 23.Rd1 Rd8 24.Rd2 f5 25.exf5 Nxd3+ 26.Rxd3 c5 27.Rd2 Rda8 28.g4 hxg4 29.fxg4 g6 30.g5 gxf5 31.Nf4 R8a6 32.Rc2 c4 33.bxc4 b4 34.Rb1 Rc3 35.Re2 Raa3 36.Nd5 Rh3 37.Kg2 Bg6 38.Rxb4 d3 39.Re7 Bf7 40.g6 1-0
2026.06.30 Najdorf Mem Open A 2026
3462164 IM Sieciechowicz, M (2386) FM Tytynnik, A (2212) 1/2-1/2
1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.O-O e5 5.d3 Ne7 6.c4 d4 7.b4 O-O 8.Nbd2 c6 9.Nb3 Na6 10.Bd2 Rb8 11.Rc1 Nc7 12.e3 Bf5 13.exd4 Bxd3 14.Re1 e4 15.Ne5 Nf5 16.Bxe4 Bxe4 17.Rxe4 Re8 18.Qf3 Ne6 19.Rce1 Ng5 20.Bxg5 Qxg5 21.h4 Qd8 22.Qd3 Qc7 23.Nf3 Rxe4 24.Rxe4 Rd8 25.Kg2 Bf8 26.a3 b6 27.Re2 Bg7 28.Qe4 Nd6 29.Qf4 Qb7 30.c5 Nb5 31.Qg5 Qc8 32.Re7 Bf8 33.Re4 Nxa3 34.Ne5 Re8 35.Qf6 Qe6 36.Qxe6 Rxe6 37.Rf4 f5 38.Nd7 Bh6 39.Rf3 Nc2 40.Rc3 Nxb4 41.cxb6 axb6 42.Nxb6 Bg7 43.Rc4 Nd5 44.Nxd5 cxd5 45.Rb4 Re4 46.Rb8+ Kf7 47.Rb7+ Kg8 48.Rb8+ Kf7 49.Nd2 Re7 50.Nf3 Bf6 51.Rb5 Rd7 52.Kf1 Ke6 53.Ke2 Ra7 54.Rb6+ Ke7 55.Rb3 Kd6 56.Rb6+ Ke7 57.Ke3 Ra3+ 58.Kf4 Ra2 59.Rb7+ Ke6 60.Rb6+ Ke7 61.Ke3 Ra3+ 62.Ke2 Ra2+ 63.Kf1 Ra1+ 64.Kg2 Ra7 65.Rc6 Rd7 66.Ra6 Rd6 67.Ra8 Rd8 68.Ra4 Kd6 69.Ra7 Rd7 70.Ra8 Rd8 71.Ra6+ Ke7 72.Kf1 Rd6 73.Ra5 h6 74.Ra7+ Rd7 75.Rxd7+ Kxd7 76.Ne5+ Ke6 77.Nxg6 Bxd4 78.Ke2 Bb6 79.Nf4+ Ke5 80.f3 Kd4 81.Ne6+ Ke5 82.Nf4 Kd4 83.h5 Kc4 84.Ne6 Kc3 85.g4 fxg4 86.fxg4 Kc2 87.g5 hxg5 88.Nxg5 1/2-1/2
2026.06.29 Najdorf Mem Open A 2026
3462133 WFM Sprzeczka, Emilia (2105) IM Sieciechowicz, M (2386) 0-1
1.d4 d5 2.c4 c6 3.cxd5 cxd5 4.Nc3 Nf6 5.Nf3 Nc6 6.Bf4 Bf5 7.e3 e6 8.Ne5 Nxe5 9.dxe5 Nd7 10.e4 dxe4 11.Bb5 a6 12.Bg5 Be7 13.Bxe7 Qxe7 14.Qxd7+ Qxd7 15.Bxd7+ Kxd7 16.Ke2 Ke7 17.Ke3 Rac8 18.Rac1 Rc5 19.Rhd1 Rhc8 20.Ne2 g5 21.Rxc5 Rxc5 22.Rc1 Rd5 23.Nd4 Kd7 24.Nb3 b6 25.Nd4 Rxe5 26.Rc6 Rb5 27.Rc2 Rc5 28.Rd2 Ke7 29.Nb3 Rc4 30.Nd4 Bg6 31.g3 f5 32.f4 exf3 33.Nxf3 f4+ 34.gxf4 gxf4+ 35.Kf2 Rc2 36.Rxc2 Bxc2 37.Ne5 Be4 0-1
2026.06.28 Najdorf Mem Open A 2026
3454065 IM Sieciechowicz, M (2386) Sujkowski, P (2059) 1/2-1/2
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6 6.O-O b5 7.Bd3 Bb7 8.a4 b4 9.Nbd2 c5 10.Nc4 Nbd7 11.a5 Be7 12.Qe2 O-O 13.Rd1 Qc7 14.Bd2 Rfc8 15.Rac1 Qd8 16.Nfe5 h6 17.h3 Rc7 18.Bb1 cxd4 19.exd4 Rac8 20.b3 Qe8 21.Qe1 Nd5 22.Qe4 N7f6 23.Qd3 Qb5 24.Ng4 Kf8 25.Nxf6 Nxf6 26.Bf4 Rc6 27.Be5 Rd8 28.Re1 Rcc8 29.Kh2 Bd5 30.Re2 Rc6 31.f3 Rdc8 32.Ba2 Kg8 33.Rce1 Nd7 34.Bf4 Nf6 35.Be5 Nd7 36.Bf4 Nf6 37.Qd2 Rd8 38.Qb2 Nh5 39.Be5 Bh4 40.g3 Be7 41.g4 f6 42.gxh5 fxe5 43.Rxe5 1/2-1/2
2026.06.27 Najdorf Mem Open A 2026
3454022 Zajac, Szymon (2072) IM Sieciechowicz, M (2386) 1/2-1/2
1.Nf3 d5 2.g3 g6 3.Bg2 Bg7 4.c4 c6 5.cxd5 cxd5 6.d4 Nf6 7.Nc3 O-O 8.O-O Ne4 9.Nxe4 dxe4 10.Ne5 Qd5 11.Be3 Bf5 12.g4 Be6 13.f3 Bxe5 14.fxe4 Qd6 15.dxe5 Qxd1 16.Re1 Qxa1 17.Rxa1 Nc6 18.h3 Rfd8 19.Kf2 a6 20.Bf4 Kg7 21.g5 Rd4 22.b3 a5 23.Rc1 Rb4 24.h4 Rb5 25.Rc2 Kf8 26.Bc1 Nxe5 27.Bf3 Ke8 28.Ba3 Nc6 29.Rc5 Rb6 30.e5 Rba6 31.Rb5 Bc8 32.Bxc6+ Rxc6 33.Rxa5 Rca6 1/2-1/2
2026.06.26 Jana Maciei Mem 2026
3453986 IM Sieciechowicz, M (2386) FM Mulawa, Cyprian (2400) 1-0
1.d4 e6 2.c4 d5 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be6 6.e3 Nbd7 7.Bd3 c6 8.Nf3 h6 9.Bh4 g5 10.Bg3 Nh5 11.O-O Nxg3 12.hxg3 g4 13.Nh4 Nf6 14.Rc1 Bd6 15.Bf5 Qd7 16.Qd3 O-O-O 17.Nb5 Kb8 18.Nxd6 Qxd6 19.a3 Rhe8 20.b4 Rc8 21.Qb3 h5 22.a4 Ne4 23.Bxe4 dxe4 24.Qb2 Bd5 25.Rc5 b6 26.Rc3 Qe6 27.Rfc1 Rc7 28.a5 Rec8 29.axb6 axb6 30.Ra3 Rb7 31.b5 cxb5 32.Rca1 Bc4 33.Qb4 Kc7 34.Ra8 Rbb8 35.R1a7+ Rb7 36.Rxc8+ Kxc8 37.Ra8+ Kc7 38.Qf8 Qd6 39.Qc8# 1-0
2026.06.26 Jana Maciei Mem 2026
3453739 Stachniak, Stanislaw (1942) IM Sieciechowicz, M (2386) 0-1
1.Nf3 Nf6 2.b3 d5 3.Bb2 Bf5 4.e3 e6 5.Be2 Be7 6.O-O h6 7.d3 O-O 8.Nbd2 c5 9.c4 Nc6 10.a3 Rc8 11.Ne5 Nxe5 12.Bxe5 Nd7 13.Bb2 Bf6 14.d4 cxd4 15.exd4 dxc4 16.Nxc4 Nb6 17.Rc1 Nd5 18.Ne5 Nf4 19.Bf3 Qe7 20.Rc4 Rxc4 21.bxc4 Bxe5 22.dxe5 Rd8 23.Qa4 Rd3 24.Bd1 Qg5 25.g3 Be4 26.f3 Bc6 27.Qc2 Rd2 28.Bc1 Rxc2 29.Bxf4 Qg6 30.Bxc2 Qxc2 31.Rf2 Qxc4 32.Kg2 Qd3 33.h4 h5 34.Rd2 Qxf3+ 35.Kh2 Qh1# 0-1
2026.06.26 Jana Maciei Mem 2026
3453772 IM Sieciechowicz, M (2386) Backiel, Hubert (2237) 1-0
1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Nc3 c5 7.Nf3 Nf6 8.Be2 O-O 9.O-O Nc6 10.Be3 cxd4 11.Nxd4 Nxd4 12.Qxd4 Bd7 13.a3 Be7 14.Bf3 Bc6 15.Bxc6 Qxd4 16.Bxd4 bxc6 17.Rfd1 a5 18.Na4 Rfb8 19.f3 Rb3 20.Rd2 h6 21.Rad1 Nd7 22.Kf1 e5 23.Bc3 Nf8 24.Bxe5 Ne6 25.Rd3 Rxd3 26.Rxd3 Bg5 27.g3 Be7 28.f4 f5 29.Rd7 Kf7 30.Nc5 Re8 31.Nxe6 1-0
2026.06.26 Jana Maciei Mem 2026
3453808 WIM Kubicka, Anna (2226) IM Sieciechowicz, M (2386) 1-0
1.e4 c5 2.Ne2 Nc6 3.g3 d5 4.Bg2 dxe4 5.Nbc3 Nf6 6.Nxe4 Nxe4 7.Bxe4 g6 8.O-O Bg7 9.Bg2 O-O 10.d3 Bf5 11.Be3 Qd6 12.Nc3 b6 13.Rb1 Rac8 14.Re1 Nd4 15.a4 Qd7 16.Qd2 Rfd8 17.Rbc1 Bg4 18.Bh6 Nf3+ 19.Bxf3 Bxf3 20.Qe3 Bxh6 21.Qxh6 Bc6 22.Ne4 f6 23.b3 Qf5 24.Re3 Rd4 25.Nd6 Qd5 26.Ne4 Qf7 27.Rce1 e5 28.g4 Rcd8 29.g5 Bxe4 30.Rxe4 Rxe4 31.Rxe4 Rd4 32.Rxd4 exd4 33.gxf6 Qxf6 34.Qh3 Qe7 35.Qf3 Kg7 36.Kf1 h5 37.Qf4 Qd7 38.Ke1 Qe6+ 39.Kd2 Qd7 40.Qe5+ Kh7 41.h4 Qf7 42.f4 Qd7 43.Qg5 Kg7 44.Qe5+ Kf7 45.Kd1 Qg4+ 46.Kc1 Qxh4 47.Qd5+ Kf8 48.Qa8+ Kg7 49.Qxa7+ Kh6 50.Qf7 Qe1+ 51.Kb2 h4 52.Qf6 Qg3 53.Qh8# 1-0
2026.06.26 Jana Maciei Mem 2026
3453851 IM Sieciechowicz, M (2386) GM Socko, M (2355) 1-0
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d6 5.Bd2 O-O 6.Nf3 c5 7.dxc5 dxc5 8.e3 Nc6 9.Be2 Ba5 10.O-O a6 11.Rad1 Qe7 12.Ne4 Bc7 13.Bc3 Nxe4 14.Qxe4 f5 15.Qh4 Qxh4 16.Nxh4 e5 17.f4 exf4 18.exf4 Be6 19.Nf3 Bxf4 20.g3 Be3+ 21.Kg2 Rad8 22.Rfe1 Bf7 23.Bd3 f4 24.Ng5 g6 25.Nxf7 Rxf7 26.Be4 Rfd7 27.Bd5+ Kf8 28.gxf4 Bxf4 29.Rf1 g5 30.Bf6 h6 31.Bxd8 Nxd8 32.Bf3 Rxd1 33.Rxd1 Ke7 34.Re1+ Kf6 35.Bd5 Be5 36.b3 b6 37.Kf3 Ne6 38.Bxe6 Kxe6 39.Kg4 Kf6 40.h3 Bc3 41.Rd1 Bd4 42.Kh5 Kg7 43.Re1 b5 44.Re6 bxc4 45.bxc4 a5 46.Rg6+ Kf7 47.Rxh6 Be3 48.Ra6 Bd2 49.a4 Ke7 50.Kg4 Kd7 51.Kf5 1-0
2026.06.26 Jana Maciei Mem 2026
3453885 CM Terkiewicz, Bruno (2344) IM Sieciechowicz, M (2386) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 c5 6.dxc5 Qa5 7.Rc1 dxc4 8.Bxc4 O-O 9.Nf3 Qxc5 10.Qb3 Qa5 11.O-O Nc6 12.Nb5 e5 13.Nxe5 Nxe5 14.Bxe5 a6 15.Bc7 axb5 16.Bxa5 bxc4 17.Qb4 Be6 18.a3 Nd5 19.Qd2 b6 20.Bb4 Rfd8 21.Rfd1 Bf6 22.Qe2 Nxb4 23.axb4 Rxd1+ 24.Rxd1 Ra2 25.Qf3 Kg7 26.Qc6 Rxb2 27.Qxb6 c3 28.Qc5 c2 29.Rc1 Bf5 30.e4 Bxe4 31.h4 Rb1 32.Qe3 Bb2 33.Qxe4 Rxc1+ 34.Kh2 Rh1+ 35.Kxh1 c1=Q+ 36.Kh2 Bf6 37.g3 Qb2 38.Kg2 Qd4 39.Qb1 Qd5+ 40.Kg1 Bd4 41.b5 Qf3 42.Qf1 Qxg3+ 43.Qg2 Bxf2+ 44.Kf1 Qxg2+ 0-1
2026.06.26 Jana Maciei Mem 2026
3453635 Lewczuk, Jakub (1914) IM Sieciechowicz, M (2386) 0-1
1.f4 d5 2.Nf3 Nf6 3.e3 g6 4.b3 Bg7 5.Bb2 O-O 6.g3 c5 7.Bg2 Nc6 8.O-O d4 9.Qe2 Bg4 10.h3 Bxf3 11.Bxf3 Qd7 12.Kh2 Rfe8 13.e4 e5 14.fxe5 Nxe5 15.d3 b5 16.Nd2 Rac8 17.a4 a6 18.axb5 axb5 19.Bg2 Red8 20.Bc1 c4 21.Nf3 cxd3 22.cxd3 Nxf3+ 23.Qxf3 Rc2 24.Bg5 Qe6 25.Bxf6 Bxf6 26.Qxf6 Qxf6 27.Rxf6 Rd2 28.Rf3 Rc8 29.Kg1 Rc7 30.Raf1 Rb2 31.e5 Rxb3 32.Rxf7 Rxf7 33.Bd5 Rxd3 34.Bxf7+ Kg7 35.Kh2 Re3 36.e6 d3 37.Rd1 b4 38.Be8 b3 39.Ba4 b2 40.Rb1 Re2+ 41.Kg1 d2 42.Bd1 Rxe6 43.Kf2 Re1 44.Kf3 Kf6 45.g4 g5 46.Kf2 Ke5 47.Rxb2 Rxd1 48.Ke2 Rh1 49.Rxd2 Rh2+ 50.Ke3 Rxd2 51.Kxd2 Kf4 52.Ke2 Kg3 53.Ke3 Kxh3 54.Kf3 Kh4 0-1
2026.06.26 Jana Maciei Mem 2026
3453915 IM Sieciechowicz, M (2386) GM Kazakouski, Valery (2587) 1-0
1.d4 d6 2.c4 e5 3.Nf3 e4 4.Ng5 f5 5.h4 Be7 6.Nc3 c6 7.Bf4 h6 8.Nh3 Bxh4 9.e3 Bf6 10.Qh5+ Kf8 11.Bg3 g5 12.f3 exf3 13.gxf3 Na6 14.O-O-O Nc7 15.Bd3 Ne8 16.f4 g4 17.Nf2 Ng7 18.Qh2 d5 19.Qg2 Be6 20.Rdf1 h5 21.Nxg4 fxg4 22.f5 Bf7 23.e4 dxc4 24.Bc2 Qxd4 25.Kb1 Re8 26.Rd1 Qe3 27.Rhe1 Qf3 28.Qh2 h4 29.Bd6+ Be7 30.Bxe7+ Nxe7 31.Qd6 Kg8 32.Rf1 Qg3 33.Qf6 h3 34.e5 Qh4 35.Qd6 g3 36.Ne4 Nh5 37.e6 Nf6 38.exf7+ Kxf7 39.Nxg3 Rd8 40.Qe6+ Kg7 41.Qxe7+ Kh6 42.Rxd8 Rxd8 43.Qxd8 h2 44.Qh8+ Nh7 45.f6 1-0
2026.06.26 Jana Maciei Mem 2026
3453667 IM Sieciechowicz, M (2386) Wolak, Maciej (1952) 1-0
1.d4 d5 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 Nf6 6.e3 O-O 7.Bd3 b6 8.Ne2 c5 9.cxd5 exd5 10.O-O Ba6 11.Bxa6 Nxa6 12.Qd3 Nc7 13.dxc5 bxc5 14.c4 dxc4 15.Qxc4 Qd5 16.Qxd5 Ncxd5 17.f3 Rfd8 18.e4 Nb6 19.Be3 Rac8 20.Rfd1 Rxd1+ 21.Rxd1 Kf8 22.Nc3 Ke7 23.Nb5 a6 24.Nd6 Rc6 25.Nf5+ Kf8 26.Rd8+ Ne8 27.Bf4 Nc4 28.h4 f6 29.h5 g6 30.Ne3 Nxa3 31.Nd5 c4 32.Nc7 Kf7 33.Nxe8 c3 34.Rc8 Rxc8 35.Nd6+ Ke6 36.Nxc8 c2 37.hxg6 hxg6 38.Nb6 Nb5 39.Nd5 Nd4 40.Nc3 a5 41.Kf2 Nb3 42.Na2 Kd7 43.Ke2 Kc6 44.Kd3 Kb5 45.Kxc2 Nd4+ 46.Kd3 Ne6 47.Bd2 g5 48.Nc3+ Ka6 49.Nd5 Nc5+ 50.Kc4 Nd7 51.g3 a4 52.Nb4+ Kb7 53.Nc2 Ne5+ 54.Kd5 Nxf3 55.Bc3 1-0
2026.06.26 Jana Maciei Mem 2026
3453686 IM Sieciechowicz, M (2386) GM Dardha, Daniel (2587) 0-1
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 Bxc5 6.Nf3 O-O 7.Bf4 Be7 8.e3 b6 9.Be2 Bb7 10.O-O d6 11.h3 a6 12.Rfd1 Qc7 13.Rac1 Nbd7 14.Bg3 Rfd8 15.Ng5 Ne5 16.Nge4 Nxe4 17.Nxe4 Qc6 18.f3 Qc7 19.Nf2 Rac8 20.Nd3 Nd7 21.b3 Qb8 22.Qb1 Nf6 23.e4 Nh5 24.Bf2 d5 25.exd5 exd5 26.Bxb6 Qg3 27.Bf2 Qg5 28.cxd5 Bd6 29.Rxc8 Bxc8 30.Qc1 Nf4 31.Nxf4 Bxf4 32.h4 Qe5 33.Qc4 Re8 34.Bf1 Qf6 35.Qc6 Qd8 36.Bb6 Be3+ 37.Bxe3 Rxe3 38.d6 Bd7 39.Qc7 Qe8 40.Qc5 Re5 41.Qf2 a5 42.Bc4 h6 43.Rc1 Re3 44.Rd1 Qe5 45.Rd5 Re1+ 46.Bf1 Rxf1+ 47.Kxf1 Qxd5 48.Qb6 Qd1+ 49.Kf2 Qd2+ 50.Kg3 Qe1+ 51.Kh2 Qxh4+ 52.Kg1 Qe1+ 53.Kh2 Qe5+ 54.Kg1 Kh7 55.Qc7 Qe1+ 56.Kh2 Qh4+ 57.Kg1 Qd4+ 58.Kh2 Be6 59.a3 h5 60.b4 axb4 61.axb4 Qh4+ 62.Kg1 Qd4+ 63.Kh2 Qd5 64.Qc2+ g6 65.Qc7 Kg7 66.Qc3+ Kg8 67.Qc7 Qe5+ 68.Kg1 Kh7 69.Kf2 Qd4+ 70.Kg3 h4+ 71.Kh2 Qe5+ 72.Kg1 h3 73.gxh3 Qg3+ 74.Kf1 Qxf3+ 75.Ke1 Qxh3 76.Kd2 Qg2+ 77.Kc3 Qd5 78.Qb6 Qc4+ 79.Kd2 g5 80.Ke3 Qf4+ 81.Kd3 Qc4+ 82.Ke3 Kg7 83.Qd8 Qc3+ 84.Kf2 Qd4+ 85.Ke1 Qe3+ 0-1
2026.06.26 Jana Maciei Mem 2026
3453947 GM Krzyzanowski, M (2493) IM Sieciechowicz, M (2386) 1-0
1.Nf3 Nf6 2.b3 d5 3.Bb2 Bf5 4.g3 e6 5.Bg2 Be7 6.O-O O-O 7.d3 h6 8.Nbd2 c5 9.Ne5 Qc7 10.e4 Bh7 11.Qe2 d4 12.f4 Nbd7 13.Nxd7 Qxd7 14.a4 b6 15.Nc4 Qc7 16.g4 Nd7 17.e5 Rae8 18.Bc1 Kh8 19.Bd2 f6 20.exf6 Nxf6 21.Rae1 Bd8 22.h4 h5 23.gxh5 Qf7 24.Bf3 Bc7 25.Ne5 Bxe5 26.fxe5 Nd7 27.Be4 Qg8 28.Bg6 Rb8 29.Qe4 Rxf1+ 30.Rxf1 Rf8 31.Rxf8 Nxf8 32.Bg5 Nd7 33.Be7 Bxg6 34.hxg6 Qe8 35.Bd6 Nf8 36.h5 Nd7 37.Qf4 Kg8 38.Qf3 a6 39.Kg2 b5 40.axb5 axb5 41.Kh3 c4 42.bxc4 bxc4 43.dxc4 Qc8 44.Qf7+ Kh8 45.h6 1-0
2026.06.07 ch-Malopolska 2026
2285888 IM Sieciechowicz, M (2386) FM Rosol, Philip (2309) 1-0
1.Nf3 Nf6 2.g3 e6 3.Bg2 d5 4.O-O Bd6 5.c4 O-O 6.d4 Nc6 7.b3 a5 8.Bb2 b6 9.Nc3 Bb7 10.Rc1 Ne4 11.Nxe4 dxe4 12.Ne5 f5 13.Nxc6 Bxc6 14.e3 Qd7 15.f3 Be7 16.fxe4 Bg5 17.Qd3 Rae8 18.e5 Bxg2 19.Kxg2 h5 20.h4 Bh6 21.Qe2 g6 22.Rcd1 Kh7 23.d5 Bg7 24.e4 exd5 25.exd5 Rxe5 26.Bxe5 Re8 27.Rd3 Rxe5 28.Re3 Rxe3 29.Qxe3 Qd6 30.Re1 Qa3 31.Re2 a4 32.Qe7 Qc1 33.Qxc7 axb3 34.axb3 g5 35.Qf7 1-0
2026.06.06 ch-Malopolska 2026
2285854 Achinovich, Oleg (2118) IM Sieciechowicz, M (2386) 0-1
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.c3 O-O 6.O-O d5 7.exd5 Nxd5 8.h3 Nb6 9.Bb3 Bf5 10.Bc2 a5 11.Qe2 Re8 12.Nbd2 Bg6 13.Rd1 Bf8 14.a4 f5 15.Nc4 Nxc4 16.Bb3 Kh8 17.Bxc4 h6 18.Nh2 Qf6 19.f3 Bd6 20.Be3 Nd4 21.Qf2 Ne6 22.Bxe6 Qxe6 23.Re1 Qd5 24.Rad1 f4 25.Bc1 Bxd3 26.Kh1 Qc4 27.Ng4 Bf5 28.g3 Qxa4 29.Kh2 h5 30.gxf4 hxg4 31.hxg4 Bh7 32.f5 e4+ 33.f4 e3 34.Bxe3 Re4 35.Rd4 Rxd4 36.Bxd4 Re8 37.Kg3 Rxe1 38.Qxe1 Qd7 39.Qe4 c6 40.c4 Qf7 41.Be5 Bc5 42.Qd3 Bg8 43.g5 Qxc4 44.Qd8 Qd5 45.Qe8 Qd3+ 46.Kg4 Qe2+ 47.Kh3 Qf1+ 48.Kg3 Bf2+ 49.Kf3 Bg1+ 0-1
2026.06.06 ch-Malopolska 2026
2285816 IM Sieciechowicz, M (2386) Gradalski, Olaf (2196) 1/2-1/2
1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nc6 5.e4 d6 6.c3 e5 7.Na3 Nge7 8.Nc2 O-O 9.d4 exd4 10.cxd4 Bg4 11.Be3 Qb6 12.dxc5 1/2-1/2
2026.06.05 ch-Malopolska 2026
2285744 IM Sieciechowicz, M (2386) Bednarek, Jan (2129) 1-0
1.Nf3 Nf6 2.g3 d5 3.Bg2 e6 4.O-O Be7 5.c4 O-O 6.d3 c6 7.Qc2 Nbd7 8.Nc3 Re8 9.cxd5 exd5 10.e4 dxe4 11.dxe4 Bd6 12.Rd1 Qc7 13.Qd3 Bc5 14.Bf4 Qb6 15.Qc2 Bb4 16.Nd2 Qa6 17.a3 Bc5 18.Bf1 b5 19.Nb3 Qb6 20.Nxc5 Qxc5 21.Bg2 Bb7 22.Rac1 Qb6 23.Rd6 Rac8 24.Bh3 Rcd8 25.Rcd1 Nf8 26.Be3 Qc7 27.Nxb5 Qe7 28.Rxd8 Rxd8 29.Rxd8 Qxd8 30.Nc3 Ng6 31.Bxa7 Qa5 32.Bd4 Qh5 33.Bg2 Bc8 34.Qd1 Bg4 35.f3 Bh3 36.Qd2 Bxg2 37.Kxg2 h6 38.b4 Nh7 39.Be3 Ng5 40.Bxg5 hxg5 41.Qe2 Qh6 42.a4 g4 43.fxg4 Qc1 44.Nd1 Qa3 45.b5 Qxa4 46.bxc6 Qxc6 47.Nf2 Ne5 48.h3 Qc3 49.g5 Qc1 50.h4 Qc3 51.Ng4 Nd3 52.Kh2 Qd4 53.h5 Nc1 54.Qc2 Qd7 55.Ne5 Qb5 56.Qxc1 Qe2+ 57.Kg1 Qxe4 58.Qc3 Qb1+ 59.Kh2 Qa2+ 60.Kh3 1-0
2026.06.05 ch-Malopolska 2026
2285779 Saad, Gabriel (2168) IM Sieciechowicz, M (2386) 1/2-1/2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3 10.f5 Be7 11.fxe6 Bxe6 12.Rxb7 Nbd7 13.Bd3 Qc5 14.Be3 Qc8 15.Rb1 O-O 16.O-O Ne5 17.Nf5 Bxf5 18.Rxf5 Nc4 19.Bxc4 Qxc4 20.Bg5 Nxe4 21.Nxe4 Qxe4 22.Bxe7 Qxf5 23.Bxf8 Qc5+ 24.Qf2 Qxf2+ 25.Kxf2 Kxf8 26.Rb6 Ke7 27.Ke3 Kd7 28.a4 a5 29.Rb7+ Ke6 30.Rb5 f5 31.Kd4 Ra7 32.c4 g5 33.g4 f4 34.Rxg5 Rf7 35.Rb5 f3 36.Rb1 f2 37.Rf1 Rf4+ 38.Kd3 Ke5 39.h3 h6 40.Ke3 Rxc4 41.Rxf2 Rc3+ 42.Kd2 Rxh3 43.Rf5+ Ke4 44.Rxa5 d5 45.Rb5 Rh2+ 46.Kd1 Rh4 47.Rb3 Rxg4 48.Rh3 Rg6 49.Ke2 Kf4 50.a5 Ra6 51.Rh5 Ke4 52.Rh4+ Ke5 53.Kd3 Rxa5 54.Rh5+ Kd6 55.Rxh6+ Kc5 56.Rh4 Ra3+ 57.Kd2 d4 58.Rh8 1/2-1/2
2026.06.04 ch-Malopolska 2026
2285673 IM Sieciechowicz, M (2386) Hanas, Markiyan (2030) 1-0
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6 6.O-O b5 7.Bd3 c5 8.a4 b4 9.Qe2 Bb7 10.Rd1 Be7 11.dxc5 Qc7 12.e4 Nbd7 13.Nbd2 Nxc5 14.Bc2 e5 15.Nc4 Nfxe4 16.Nfxe5 O-O 17.Bf4 Ne6 18.Bxe4 Nxf4 19.Qf3 Bxe4 20.Qxe4 Ng6 21.Rd7 Qc5 22.Nd3 Qg5 23.f4 Qf6 24.f5 Rae8 25.fxg6 Bc5+ 26.Nxc5 Rxe4 27.gxf7+ Rxf7 28.Nxe4 Qe6 29.Rxf7 Qxf7 30.Ned6 Qa7+ 31.Kh1 Qf2 32.h3 h5 33.Ne4 Qe2 34.Ncd2 Qd3 35.b3 Qd4 36.Rc1 h4 37.Rc5 Qd8 38.Rc4 a5 39.Rc5 g6 40.Rc6 Kg7 41.Rd6 Qe7 42.Rd5 Qc7 43.Nc5 Kh6 44.Nde4 Qf7 45.Rd1 Qf4 46.Re1 g5 47.Kg1 Qe5 48.Rf1 Kg7 49.Rd1 Kg6 50.Rd6+ Kh7 51.Rd5 Qa1+ 52.Kh2 g4 53.hxg4 Kg7 54.Rg5+ Kf7 55.Rf5+ Kg8 56.g5 Qd1 57.Rf4 Qa1 58.Rxh4 Qe5+ 59.g3 Qb2+ 60.Kh3 Qe2 61.Rf4 Qh5+ 62.Kg2 Qe2+ 63.Rf2 Qe3 64.Kh2 Kh7 65.Rf7+ Kg8 66.Rf2 Kh7 67.Kh3 Qe1 68.Kg4 Qd1+ 69.Kf5 Qd5+ 70.Kf6 Kg8 71.g6 Qc6+ 72.Kg5 Qc8 73.Rf7 Kh8 74.Rh7+ 1-0
2026.06.04 ch-Malopolska 2026
2285709 Kumor, L (2090) IM Sieciechowicz, M (2386) 0-1
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.Be2 Be6 9.O-O O-O 10.f4 exf4 11.Bxf4 Nc6 12.Qd2 d5 13.exd5 Nxd5 14.Nxd5 Qxd5 15.Rad1 Qxd2 16.Bxd2 a5 17.c3 a4 18.Nc1 Na5 19.Rf4 a3 20.b3 Rfd8 21.Kf1 Nc6 22.Ke1 Bd6 23.Rh4 f6 24.g3 g5 25.Rh6 Kg7 26.Bxg5 Be5 27.Bd3 Bxc3+ 28.Kf1 Bg4 29.Rxh7+ Kg8 30.Bh6 f5 31.Rxb7 Bxd1 32.Bxf5 Rf8 33.Bxf8 Rxf8 34.Rb5 Nd4 35.Rc5 Rxf5+ 36.Rxf5 Nxf5 37.Ne2 Bd2 38.g4 Ne3+ 39.Kf2 Nxg4+ 40.Kf3 Nxh2+ 41.Kf2 Ng4+ 42.Kf3 Kh8 43.b4 Bxb4 44.Kxg4 Bxe2+ 0-1
2026.05.12 Titled Tue 12th May 2026
2268707 GM Koneru, H (2535) IM Sieciechowicz, M (2386) 0-1
1.Nf3 Nf6 2.d4 d5 3.c4 c6 4.e3 Bg4 5.h3 Bh5 6.cxd5 cxd5 7.Qb3 Qc7 8.Nc3 Bxf3 9.gxf3 e6 10.Bd2 Nc6 11.f4 Bb4 12.Bd3 O-O 13.Rc1 Rac8 14.O-O Qe7 15.Qd1 Rfd8 16.Kh2 Bxc3 17.Bxc3 Ne4 18.Be1 f5 19.f3 Nf6 20.a3 Rc7 21.Bd2 Rdc8 22.Qe2 Nb8 23.Rxc7 Rxc7 24.Rc1 Rxc1 25.Bxc1 Qc7 26.Bd2 Nbd7 27.a4 Nb6 28.b3 h6 29.Kg2 Nc8 30.Bb4 a5 31.Ba3 Ne7 32.Qc2 Qxc2+ 33.Bxc2 Nc6 34.Bd6 Nb4 35.Bd1 Nd7 36.Be2 Nf6 37.Bc7 Nc6 38.Bb5 Kf7 39.Bxc6 bxc6 40.Bxa5 Ke8 41.Kf2 Kd7 42.Ke2 Kc8 43.Bb4 Nd7 44.Bd6 Kb7 45.Be5 g6 46.Bg7 c5 47.Bxh6 c4 48.bxc4 Nb6 49.cxd5 exd5 50.Kf2 Kc6 51.Bf8 Nxa4 52.Kg3 Kd7 53.Kh4 Ke6 54.Kg5 Kf7 55.Ba3 Nc3 56.Bc1 Ne2 57.Bb2 Ng1 58.Kh4 Nxf3+ 59.Kg3 Nd2 60.Kg2 Ke6 61.Bc3 Nc4 62.Bb4 Nd6 63.Bxd6 Kxd6 64.Kg3 Ke6 65.h4 Kf6 66.Kh3 Kg7 67.Kg3 Kh6 68.Kh3 Kh5 69.Kg3 Kh6 70.Kh3 Kh7 71.Kg3 g5 72.Kh3 g4+ 73.Kg3 Kg6 74.h5+ Kxh5 75.Kg2 Kh4 76.Kh2 g3+ 77.Kg2 Kg4 0-1
2026.05.12 Titled Tue 12th May 2026
2268475 IM Sieciechowicz, M (2386) GM Le Tuan Minh (2585) 0-1
1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.Nf3 a6 5.e3 Bf5 6.Qb3 Ra7 7.c5 Nbd7 8.Nh4 Be4 9.f3 Bg6 10.Nxg6 hxg6 11.Be2 e5 12.Bd2 Qe7 13.O-O-O Qe6 14.Rde1 Be7 15.f4 e4 16.Qd1 b6 17.cxb6 Nxb6 18.Kb1 O-O 19.g4 Rb8 20.g5 Nfd7 21.Ka1 Nc4 22.Bxc4 dxc4 23.h4 Bb4 24.h5 Nb6 25.Rh2 Bxc3 26.Bxc3 Nd5 27.Qc1 Rab7 28.Reh1 gxh5 29.Rxh5 Kf8 30.Rh8+ Ke7 31.Rxb8 Rxb8 32.Qd2 Qg4 33.a3 Qf3 34.Re1 Rh8 35.Bb4+ Ke6 36.Bc5 Rh1 37.Rxh1 Qxh1+ 38.Ka2 Kf5 39.Qa5 Qd1 40.Qxa6 Qb3+ 41.Ka1 c3 42.Qc8+ Kg6 43.f5+ Kxg5 0-1
2026.05.12 Titled Tue 12th May 2026
2267965 IM Sieciechowicz, M (2386) Alonso, Leonardo Espinha (2099) 1-0
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.e3 h6 7.Bh4 Bd6 8.Bd3 O-O 9.Nge2 Nbd7 10.f3 Re8 11.Bf2 Qc7 12.h3 Nh5 13.O-O Bh2+ 14.Kh1 Ng3+ 15.Nxg3 Bxg3 16.Qe1 Bxf2 17.Qxf2 Nf6 18.e4 Nh5 19.e5 Nf4 20.Bc2 c5 21.Rad1 cxd4 22.Qxd4 Qxe5 23.Rfe1 Qxe1+ 24.Rxe1 Rxe1+ 25.Kh2 g5 26.Nxd5 Nxd5 27.Qxd5 Be6 28.Qd3 f5 29.Qd2 Re5 30.Qc3 Re2 31.Bd1 Rf2 32.Kg1 Rd8 33.Kxf2 Rxd1 34.Qf6 Bxa2 35.Qg6+ Kf8 36.Qxh6+ Kf7 37.Qxg5 Be6 38.h4 Rb1 39.h5 Rxb2+ 40.Kg3 Rb5 41.Qg6+ Ke7 42.h6 Bf7 43.Qg7 f4+ 44.Kxf4 Rb4+ 45.Kg3 a5 46.h7 a4 47.h8=Q Rb6 48.Qhf8+ Kd7 49.Qgxf7+ Kc6 50.Qc4+ Kd7 51.Qff7+ Kd6 52.Qcc7# 1-0
2026.05.12 Titled Tue 12th May 2026
2268258 Ivanytska, Liudmyla (2112) IM Sieciechowicz, M (2386) 0-1
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Ne2 Nf6 5.Bg5 h6 6.Bxf6 Qxf6 7.a3 Bxc3+ 8.Nxc3 dxe4 9.Nxe4 Qg6 10.Ng3 O-O 11.Bd3 Qf6 12.O-O Nc6 13.c3 e5 14.d5 Ne7 15.c4 Nf5 16.Qe2 Nd4 17.Qe4 g6 18.f4 Re8 19.Rae1 Bf5 20.Nxf5 gxf5 21.Qe3 e4 22.Be2 c5 23.Rc1 Kh8 24.Rc3 Rg8 25.Kh1 b6 26.Rd1 a5 27.Bf1 a4 28.Qf2 Rg4 29.Rh3 Rag8 30.Rg3 Rxg3 31.hxg3 Qg6 32.Kh2 Qh5+ 33.Kg1 Qxd1 0-1
2026.05.12 Titled Tue 12th May 2026
2267008 IM Sieciechowicz, M (2386) FM Tugaj, S (2247) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 O-O 5.Be2 d6 6.Be3 Nbd7 7.h4 e5 8.d5 h5 9.f3 a5 10.Nh3 Nc5 11.Nf2 c6 12.g4 cxd5 13.cxd5 hxg4 14.fxg4 b5 15.g5 Nh5 16.Bxh5 gxh5 17.Nxb5 Rb8 18.Na7 Bd7 19.Bxc5 dxc5 20.Qxh5 Rxb2 21.O-O Qb6 22.Nc6 Bxc6 23.dxc6 Qxc6 24.Rac1 Rxa2 25.Qf3 c4 26.Ng4 Qc5+ 27.Kh1 Ra3 28.Qg2 Qc6 29.Nf6+ Kh8 30.Qg4 Bh6 31.gxh6 Qxf6 32.Rxf6 Rg8 33.Qf5 1-0
2026.05.12 Titled Tue 12th May 2026
2267266 IM Sieciechowicz, M (2386) GM Movahed, Sina (2575) 0-1
1.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5 5.Bf4 c6 6.e3 Bf5 7.g4 Be6 8.h4 Nd7 9.g5 h6 10.g6 fxg6 11.Bd3 Bf7 12.Qc2 Ngf6 13.Bxg6 O-O 14.Bxf7+ Rxf7 15.Nge2 b5 16.O-O-O b4 17.Na4 Rc8 18.Kb1 c5 19.dxc5 Nxc5 20.Nxc5 Rxc5 21.Qg6 Ne4 22.Rhg1 Bf6 23.f3 Nf2 24.Rc1 Rc4 25.Bxh6 b3 26.axb3 Qb6 27.Bg5 Nh3 28.Bxf6 Nxg1 29.Rxg1 Rc6 30.Nd4 Rcxf6 31.Qg4 Kh7 32.Rc1 Rh6 33.h5 Qa6 34.Rd1 Qf6 35.f4 Qe7 36.Qf3 Qe4+ 37.Qxe4+ dxe4 38.Rc1 Rxh5 39.Ne6 Re7 40.Ng5+ Kg6 41.Rc6+ Kf5 42.Rc5+ Kg4 43.Rc4 Kf5 44.Rc5+ Kg4 45.Rc4 Rxg5 46.fxg5 Kxg5 0-1
2026.05.12 Titled Tue 12th May 2026
2268846 IM Sieciechowicz, M (2386) CM Kengurov, Yaroslav (2045) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Na6 7.h4 h5 8.f3 c5 9.d5 Nc7 10.Nh3 b5 11.cxb5 a6 12.a4 axb5 13.axb5 Rxa1 14.Qxa1 e6 15.b6 Nce8 16.Qa7 exd5 17.exd5 Bxh3 18.Rxh3 Nd7 19.b7 Nef6 20.Bb5 Re8 21.Kf2 Qe7 22.Bd2 Bh6 23.b8=Q Be3+ 24.Kf1 Rxb8 25.Be1 c4 26.Qa4 Nb6 27.Qd1 Bc5 28.Bc6 Qe3 29.Rh1 Nbd7 30.Na4 Ba7 31.Qd2 Qe5 32.Qe2 Qd4 33.Bc3 Qf4 34.Qd2 Qf5 35.g3 Ne4 36.Qf4 Qxf4 37.gxf4 Ng3+ 38.Kg2 Nxh1 39.Kxh1 Nc5 40.Kg2 Nxa4 41.Bxa4 Bc5 42.f5 Ra8 43.Bc6 Ra1 44.fxg6 fxg6 45.f4 Rc1 46.Kf3 Rf1+ 47.Ke4 Re1+ 48.Kf3 Re3+ 49.Kg2 Re2+ 50.Kf1 Rc2 51.Bd7 Rc1+ 52.Ke2 Rh1 53.Be6+ Kh7 54.f5 Rh2+ 55.Kf3 gxf5 56.Bxf5+ Kg8 57.Kg3 Rh1 58.Be6+ Kf8 59.Kg2 Rg1+ 60.Kf3 Rd1 61.Ke2 Rd3 62.Bf5 Rh3 63.Bg6 Ke7 64.Bxh5 Rh2+ 65.Kf3 Rxh4 66.Bg4 Rxg4 67.Kxg4 Kd7 68.Kf3 Kc7 69.Ke2 Kb6 70.Kd1 Kb5 71.Kc2 Bb4 72.Kc1 Bxc3 73.Kb1 Kc5 74.Kc1 Kxd5 75.Kc2 Bxb2 76.Kb1 Kc5 0-1
2026.05.12 Titled Tue 12th May 2026
2267321 GM Tregubov, P (2543) IM Sieciechowicz, M (2386) 1-0
1.e4 e6 2.d4 d5 3.exd5 exd5 4.Nf3 Nc6 5.h3 Nge7 6.Bd3 Be6 7.c3 Qd7 8.O-O f6 9.b4 g5 10.Nbd2 Bf5 11.Nb3 Ng6 12.Re1+ Kf7 13.b5 Nce7 14.Nc5 Qc8 15.c4 b6 16.Na6 Bxh3 17.gxh3 Qxh3 18.Bf1 Qg4+ 19.Bg2 Nf5 20.Nxg5+ 1-0
2026.05.12 Titled Tue 12th May 2026
2267599 IM Sieciechowicz, M (2386) CM Rusu, Lucas (2191) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.h4 h5 6.Qb3 dxc4 7.Qxc4 a6 8.e4 O-O 9.e5 Nfd7 10.e6 Nb6 11.exf7+ Rxf7 12.Qb3 e6 13.Bd3 Nc6 14.Bg5 Qf8 15.Bxg6 Rxf3 16.gxf3 Nxd4 17.Qd1 Nxf3+ 18.Kf1 Nc4 19.Qe2 b5 20.Bxh5 Bb7 21.Rh3 Nd4 22.Qg4 b4 23.Nd1 Kh7 24.Bg6+ Kg8 25.Qh5 Qd6 26.Qh7+ Kf8 27.Bh6 Qe5 28.Qh8+ 1-0
2026.05.12 Titled Tue 12th May 2026
2267867 CM Mayta Aiza, Maveric (2217) IM Sieciechowicz, M (2386) 1-0
1.e4 e6 2.d3 d5 3.Nd2 Nf6 4.g3 c5 5.Bg2 Nc6 6.Ngf3 Be7 7.O-O O-O 8.Re1 Qc7 9.h4 b5 10.Nf1 dxe4 11.dxe4 Rd8 12.Qe2 a6 13.N1h2 e5 14.c3 c4 15.Nf1 Nd7 16.Ne3 Nc5 17.Nd5 Qb7 18.Rd1 Bg4 19.Be3 Bf8 20.Qc2 Nd3 21.Rd2 f6 22.Ne1 Nc5 23.b4 Ne6 24.a4 Rab8 25.axb5 axb5 26.Qb2 Ra8 27.Nc2 Rxa1+ 28.Qxa1 Ra8 29.Na3 Bh5 30.Ra2 Bf7 31.Nc2 Rxa2 32.Qxa2 Nc7 33.Nb6 Qa6 34.Qxa6 Nxa6 35.Nd5 Bd6 36.Na3 Nc7 37.Nxc7 Bxc7 38.Nxb5 Bb8 39.Na3 Be6 40.Bf1 Kf7 41.Bxc4 Bd6 42.Bxe6+ Kxe6 43.Nb5 Be7 44.Kf1 Kd7 45.Ke2 g6 46.Kd3 f5 47.f3 h5 48.Bf2 f4 49.g4 g5 50.hxg5 hxg4 51.fxg4 Bxg5 52.Ke2 Be7 53.Na3 Nd8 54.Nc4 Bf6 55.g5 Bg7 56.Kf3 Ke6 57.b5 Kd7 58.Kg4 Ke6 59.b6 Nc6 60.b7 Bf8 61.Nb6 Bd6 62.Nd5 Bb8 63.g6 Ne7 64.Nxe7 Kxe7 65.Kf5 Kf8 66.c4 Bd6 67.c5 Bb8 68.c6 Ke7 69.Bb6 Ke8 70.g7 Bc7 71.Bxc7 Kf7 72.b8=Q Kxg7 73.Qe8 Kh7 74.Qg6+ 1-0
2026.05.12 Titled Tue 12th May 2026
2268158 FM Samdanov, S (2294) IM Sieciechowicz, M (2386) 0-1
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Qc2 dxc4 5.Qxc4 Bg4 6.Nbd2 Nbd7 7.g3 e6 8.Bg2 Be7 9.O-O O-O 10.e3 Rc8 11.Nb3 b5 12.Qe2 Qb6 13.Bd2 c5 14.Ba5 Qb8 15.dxc5 Nxc5 16.Nxc5 Bxc5 17.Rfc1 Be7 18.Qf1 Bxf3 19.Bxf3 a6 20.Rxc8 Rxc8 21.Rc1 h6 22.Qd1 Rxc1 23.Qxc1 Bd8 24.Bc3 Qc7 25.Qd2 Be7 26.Ba5 Qc4 27.b3 Qc5 28.Kg2 Nd5 29.Qd3 Qa3 30.Qd2 Bb4 31.Bxb4 Qxb4 32.Qxb4 Nxb4 33.a4 bxa4 34.bxa4 Kf8 35.Kf1 Ke7 36.Ke1 Kd6 37.Kd2 Kc5 38.Kc3 a5 39.Bd1 e5 40.Bb3 f6 41.f4 Nc6 42.Bg8 Ne7 43.Be6 Nd5+ 44.Bxd5 Kxd5 45.Kd3 f5 46.fxe5 Kxe5 47.Kc4 Ke4 48.Kb5 Kxe3 49.Kxa5 g5 50.Kb6 f4 51.gxf4 gxf4 52.a5 f3 53.a6 f2 54.a7 f1=Q 55.a8=Q Qf6+ 56.Qc6 Qxc6+ 57.Kxc6 h5 58.Kd5 h4 59.Ke5 h3 60.Kf5 Kf3 61.Kg5 Kg2 62.Kf4 Kxh2 63.Kf3 Kg1 0-1
2026.04.28 Titled Tue 28th Apr 2026
2256660 FM Lana Rodriguez, D (2344) IM Sieciechowicz, M (2383) 0-1
1.e4 e6 2.d4 d5 3.Bd3 dxe4 4.Bxe4 Nf6 5.Bf3 c5 6.Ne2 Nc6 7.Be3 Be7 8.O-O Nd5 9.Bxd5 Qxd5 10.dxc5 Qxd1 11.Rxd1 Nb4 12.Na3 Na6 13.Nb5 Bd7 14.a4 Bxc5 15.Nc7+ Nxc7 16.Bxc5 a5 17.b3 Na6 18.Ba3 e5 19.Rd5 f6 20.Rxa5 Bc6 21.b4 b6 22.Rxa6 Rxa6 23.b5 Rxa4 24.bxc6 Kf7 25.Nc3 Rc4 26.Bb2 Rxc6 27.Ra7+ Kg6 28.f3 Rhc8 29.Ra3 Kf7 30.Rb3 b5 31.Nxb5 Kg6 32.c3 Rd8 33.h3 Rd2 34.Kh2 h5 35.Ba3 Kh7 36.Bb4 f5 37.Ra3 Rg6 38.Ra1 Rgxg2+ 39.Kh1 Rg3 40.Rf1 Rxh3+ 41.Kg1 Rg3+ 42.Kh1 Rgg2 43.Re1 h4 44.Bd6 f4 45.Bxe5 g5 46.Bd4 Rh2+ 47.Kg1 Rdg2+ 48.Kf1 h3 49.Re7+ Kg6 50.Rg7+ Kh6 51.Bf2 Rxf2+ 52.Ke1 Rfg2 53.Rh7+ Kxh7 0-1
2026.04.28 Titled Tue 28th Apr 2026
2257189 IM Sieciechowicz, M (2383) CM Jyotshnav Talukdar (2268) 1-0
1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 c5 7.Rb1 cxd4 8.cxd4 Be7 9.Nf3 O-O 10.Bd3 b6 11.h4 Ba6 12.h5 Bxd3 13.Qxd3 h6 14.Rh3 Nc6 15.Rg3 Kh8 16.Qd2 Rg8 17.Rb3 a5 18.a3 a4 19.Rd3 Na5 20.Qf4 Nb3 21.Bb2 Bd6 22.e5 Bf8 23.Qxf7 Qc8 24.Nh4 Qc2 25.Ng6+ Kh7 26.Qxe6 Qb1+ 27.Rd1 Qxb2 28.Qf5 Bb4+ 29.axb4 Rge8 30.Nf8+ Kg8 31.Qh7+ Kxf8 32.Qxg7# 1-0
2026.04.28 Titled Tue 28th Apr 2026
2256739 IM Sieciechowicz, M (2383) IM Terry, R (2508) 0-1
1.d4 e6 2.c4 Bb4+ 3.Bd2 Qe7 4.Nf3 Nf6 5.Nc3 O-O 6.g3 b6 7.Bg2 Bb7 8.O-O d6 9.Qc2 Nbd7 10.Rfd1 h6 11.a3 Bxc3 12.Bxc3 Be4 13.Qc1 a5 14.b4 axb4 15.axb4 b5 16.c5 Nd5 17.Qb2 N7f6 18.Rxa8 Rxa8 19.Ra1 Qd8 20.Bd2 Qb8 21.Ra3 Ra4 22.Rxa4 bxa4 23.b5 a3 24.Qxa3 Qxb5 25.cxd6 Qxe2 26.dxc7 Nxc7 27.Qe3 Qd1+ 28.Be1 Ncd5 29.Qd2 Bxf3 0-1
2026.04.28 Titled Tue 28th Apr 2026
2256250 IM Sieciechowicz, M (2383) CM Fisher, Timofey (2054) 1-0
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Nc6 7.Nf3 e5 8.d5 Nd4 9.Nxd4 exd4 10.Bxd4 Re8 11.f3 Nh5 12.O-O Nf4 13.Bxg7 Qg5 14.g3 Kxg7 15.Qc1 Nxe2+ 16.Nxe2 Qf6 17.Qc3 Qxc3 18.Nxc3 Bd7 19.Rfe1 h5 20.h4 f6 21.Kf2 a6 22.Rac1 f5 23.exf5 Bxf5 24.Rxe8 Rxe8 25.Re1 Rxe1 26.Kxe1 Kf6 27.Kf2 Ke5 28.Ke3 c6 29.dxc6 bxc6 30.Ne4 d5 31.cxd5 cxd5 32.f4+ Ke6 33.Nc5+ Kd6 34.Nxa6 Kc6 35.Kd4 Bc8 36.Nb4+ Kd6 37.Nxd5 Ke6 38.b4 Bb7 39.Ne3 Bc6 40.Kc5 Ba4 41.b5 Kd7 42.f5 gxf5 43.Nxf5 Kc7 44.Nd6 Bd1 45.b6+ Kd7 46.Nb5 Bf3 47.a4 Ke6 48.a5 Kf5 49.Nd4+ Kg4 50.Nxf3 Kh3 51.b7 Kg2 52.b8=Q Kh1 53.Ng5 Kg2 54.Qb3 Kh1 55.Qc2 Kg1 56.Ne6 Kh1 57.Nf4 Kg1 58.Qg2# 1-0
2026.04.28 Titled Tue 28th Apr 2026
2256529 IM Sieciechowicz, M (2383) FM Mattenberger, Matthias (2307) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3 Nc6 7.Nf3 Ng4 8.Bg5 h6 9.Bh4 g5 10.Bg3 Nf6 11.d5 Nb8 12.Nd4 c5 13.Nc2 e6 14.h4 g4 15.h5 b5 16.cxb5 exd5 17.exd5 a6 18.bxa6 Re8 19.Ne3 Nxa6 20.Bh4 Rb8 21.Rb1 Qa5 22.O-O Rb4 23.Nc4 Qc7 24.a3 Rb8 25.a4 Bd7 26.Bxf6 Bxf6 27.Bxg4 Rb4 28.Bxd7 Qxd7 29.Qd3 Qg4 30.Nxd6 Re5 31.Qxa6 Qh4 32.Qc8+ Kh7 33.Qh3 Qxh3 34.gxh3 Rg5+ 35.Kh2 Be5+ 36.f4 Bxd6 37.Ne2 Rxa4 38.Rf3 Rxd5 39.Kg3 Rd2 40.Nc3 Rb4 41.b3 Rbd4 42.Nb5 R4d3 43.Nxd6 Rxd6 44.Rc1 Rd8 45.Rxc5 Rg8+ 46.Kh4 Rd4 47.Rf5 Rf8 48.Rg3 Rb4 49.Re3 Kg7 50.Rc3 f6 51.Rc7+ Rf7 52.Rc3 Rfb7 53.Kg4 Rxb3 54.Rxb3 Rxb3 55.Rc5 Rb7 56.Kf5 Rf7 57.Rd5 Rd7 58.Rd3 Rd5+ 59.Ke4 Rxd3 60.Kxd3 f5 61.Kd4 Kf6 62.Kd5 Kf7 63.Ke5 Ke7 64.Kxf5 Kf7 65.Ke5 Ke7 66.f5 Kf7 67.f6 Ke8 68.Kf5 Kf8 69.Kg6 Kg8 70.Kxh6 Kf8 1/2-1/2
2026.04.28 Titled Tue 28th Apr 2026
2257310 GM Williams, Si1 (2451) IM Sieciechowicz, M (2383) 0-1
1.d4 d5 2.Nc3 Nf6 3.Bf4 e6 4.e3 Bd6 5.Nf3 Bxf4 6.exf4 O-O 7.Bd3 b6 8.Ne2 Ba6 9.O-O c5 10.c3 Bxd3 11.Qxd3 Nc6 12.Ne5 Rc8 13.a3 Ne4 14.f3 Nd6 15.Rad1 Qc7 16.dxc5 Nxe5 17.fxe5 Qxc5+ 18.Kh1 Nf5 19.Nd4 Nxd4 20.Qxd4 Qxd4 21.Rxd4 Rc5 22.Rfd1 Rfc8 23.Kg1 Kf8 24.Kf2 Rc4 25.Ke3 Ke7 26.f4 f6 27.Rxc4 Rxc4 28.Rd4 Rxd4 29.Kxd4 f5 30.c4 dxc4 31.Kxc4 a6 32.b4 Kd7 33.b5 a5 34.Kd4 Ke7 35.Ke3 Kf7 36.Kf3 h6 37.h3 g5 38.g4 Kg6 39.Kg3 fxg4 40.hxg4 gxf4+ 41.Kxf4 h5 42.a4 h4 0-1
2026.04.28 Titled Tue 28th Apr 2026
2257111 FM Olhovik, Andrei (2275) IM Sieciechowicz, M (2383) 0-1
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bg5 Ne4 5.Bh4 Nxc3 6.bxc3 dxc4 7.Qa4+ Qd7 8.Qxc4 b6 9.Nf3 Ba6 10.Qb3 Bg7 11.e3 Bxf1 12.Kxf1 O-O 13.Ke2 c5 14.Rhd1 Nc6 15.Qa3 cxd4 16.cxd4 e6 17.Rac1 Rfc8 18.Bg3 Qd5 19.Kf1 Na5 20.Kg1 h6 21.h3 Bf8 22.Qa4 Rc4 23.Rxc4 Qxc4 24.Qd7 Qc6 25.Qxc6 Nxc6 26.Rc1 Nb4 27.a3 Nd5 28.a4 f5 29.Be5 Kf7 30.Nd2 Ke8 31.Kf1 Kd7 32.Ke2 Rc8 33.Rxc8 Kxc8 34.Kd3 Kd7 35.f3 a6 36.e4 Nb4+ 37.Kc4 Nc2 38.g4 b5+ 39.axb5 Na3+ 40.Kd3 Nxb5 41.Nb3 Bb4 42.gxf5 gxf5 43.exf5 exf5 44.Kc4 Bf8 45.d5 Bd6 46.Nc5+ Bxc5 47.Kxc5 Na3 48.Bb2 Nc2 49.Be5 Ne1 50.f4 Nd3+ 51.Kb6 Nxe5 52.fxe5 f4 53.e6+ Kd6 54.e7 Kxe7 55.Kc7 f3 56.d6+ Kf7 57.d7 f2 58.d8=Q f1=Q 59.Qd5+ Kg7 60.Qe5+ Qf6 61.Qg3+ Kh7 62.Qd3+ Qg6 63.Qa3 h5 64.Kb7 h4 65.Ka7 Qe6 66.Qd3+ Kh6 67.Qxa6 Qxa6+ 68.Kxa6 Kg5 69.Kb5 Kf4 70.Kc4 Kg3 71.Kd3 Kxh3 72.Ke2 Kg2 73.Ke3 h3 74.Ke2 h2 0-1
2026.04.28 Titled Tue 28th Apr 2026
2256862 WIM Kalyani Sirin (2144) IM Sieciechowicz, M (2383) 1-0
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Nc6 6.Bd3 cxd4 7.O-O Bd7 8.Re1 Rc8 9.h4 Qc7 10.cxd4 Nb4 11.Nc3 Nxd3 12.Qxd3 Ne7 13.h5 h6 14.Bf4 a6 15.Rac1 Qb8 16.Bh2 Qa8 17.Nh4 Nc6 18.a3 Be7 19.Nf3 O-O 20.g4 b5 21.Bf4 f6 22.Bxh6 fxe5 23.Qg6 Bf6 24.Ng5 Rfd8 25.Bxg7 1-0
2026.04.28 Titled Tue 28th Apr 2026
2256097 FM Yoganathan, Sakithyan (2230) IM Sieciechowicz, M (2383) 0-1
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.d4 d5 6.a4 c5 7.dxc5 Ne4 8.Ra3 Nxc5 9.b4 Ne4 10.c4 d4 11.Nxd4 Nxf2 12.Rxf2 Qxd4 13.Qxd4 Bxd4 14.e3 Bg7 15.Bb2 Nc6 16.Bxg7 Kxg7 17.b5 Ne5 18.c5 Rb8 19.Rc3 Be6 20.Rd2 Rfc8 21.Kf2 Nc4 22.Rd4 Rxc5 23.Na3 Rbc8 24.Nxc4 Rxc4 25.Rdxc4 Rxc4 26.Rxc4 Bxc4 27.Bxb7 Kf6 28.Bc6 Ke5 29.Ke1 Kd6 30.Be8 Kc5 31.Kd2 Kb4 32.Bd7 Bb3 33.Be8 f6 34.Bd7 Bxa4 35.b6 axb6 36.Be6 Bb3 37.Bd7 Bc4 38.h4 h6 39.Be8 g5 40.hxg5 hxg5 41.Kc2 Kc5 42.Bd7 b5 43.Kc3 b4+ 44.Kc2 Kd5 45.Bf5 Ke5 46.Bg6 Be6 0-1
2026.04.28 Titled Tue 28th Apr 2026
2257404 IM Sieciechowicz, M (2383) GM Kollars, Dmitrij (2632) 0-1
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 b6 5.e4 c5 6.d5 Qe7 7.Ne2 exd5 8.exd5 O-O 9.Bd2 d6 10.O-O-O Nbd7 11.a3 Ba5 12.Ng3 Qd8 13.Be2 a6 14.Nf5 Ne5 15.Bg5 Bxc3 16.bxc3 h6 17.Bh4 Ng6 18.Bg3 Bxf5 19.Qxf5 b5 20.h4 Qa5 21.Qc2 Rfe8 22.Bd3 bxc4 23.Bxc4 Ne4 24.Rde1 Nxg3 25.fxg3 Ne5 26.Qb3 Reb8 0-1
2026.04.18 26th ch-EUR Indiv 2026
2246775 FM Szczurek, Krzysztof (2273) IM Sieciechowicz, M (2383) 1/2-1/2
1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Bg7 5.Nc3 Nc6 6.Nf3 d6 7.Be2 Nf6 8.O-O O-O 9.h3 b6 10.Bg5 h6 11.Be3 Bb7 12.Qd2 Kh7 13.Rad1 Rc8 14.Qc1 Qe8 15.Rfe1 Nd7 16.Nh2 Nc5 17.f3 a6 18.Nd5 b5 19.c3 Ne5 20.Ng4 Nxg4 21.hxg4 e6 22.Nf4 Qe7 23.Bf1 b4 24.c4 Na4 25.Nd3 a5 26.Qc2 Bc6 27.Qf2 Rfd8 28.b3 Nc3 29.Rd2 Ra8 30.Rc2 Rdb8 31.Bd4 Bxd4 32.Qxd4 Qa7 33.Qxa7 Rxa7 34.a3 Be8 35.axb4 axb4 36.e5 dxe5 37.Nxb4 Na4 38.Nd3 Rxb3 39.Rxe5 Rc7 40.Ra5 Nb6 41.Nc5 Rb1 42.Kf2 1/2-1/2
2026.04.16 26th ch-EUR Indiv 2026
2241549 GM Moroni, L (2551) IM Sieciechowicz, M (2383) 1/2-1/2
1.d4 d5 2.Nf3 Nf6 3.c3 e6 4.Bf4 Bd6 5.e3 O-O 6.Bd3 c5 7.Nbd2 Qc7 8.Bxd6 Qxd6 9.Ne5 b6 10.f4 Ba6 11.Bc2 Nc6 12.g4 Rac8 13.Rg1 cxd4 14.exd4 Nxd4 15.cxd4 Qb4 16.Bd3 Bb7 17.Nf3 Qxb2 18.Ke2 Qa3 19.Qb3 Qd6 20.Ne5 Ne4 21.g5 Kh8 22.Raf1 Rc7 23.Rg4 f6 24.gxf6 gxf6 25.Nef3 f5 26.Rg2 Qxf4 27.Qb4 Rfc8 28.Ne5 Qh6 29.Nef3 Nc3+ 30.Kf2 Ne4+ 31.Ke2 Nc3+ 32.Kf2 Ne4+ 33.Ke2 Nc3+ 1/2-1/2
2026.04.15 26th ch-EUR Indiv 2026
2241309 IM Sieciechowicz, M (2383) GM Acs, Peter (2573) 1/2-1/2
1.Nf3 Nf6 2.g3 g6 3.Bg2 Bg7 4.O-O O-O 5.c4 d6 6.Nc3 e5 7.d3 Nc6 8.Rb1 a5 9.a3 Re8 10.b4 axb4 11.axb4 e4 12.dxe4 Nxe4 13.Nxe4 Rxe4 14.b5 Nd4 15.Bg5 Qe8 16.Nxd4 Rxd4 17.Qb3 Bf5 18.Bxb7 Rb8 19.Bf3 Bxb1 20.Rxb1 Qe6 21.Rc1 c6 22.Be3 cxb5 23.Bxd4 Bxd4 24.Qd3 Bb2 25.Rc2 bxc4 26.Rxc4 Qe7 27.Kg2 Be5 28.Bd5 Kg7 29.Ra4 Rc8 30.Qe4 Qd7 31.Rc4 Rxc4 32.Qxc4 h5 33.h3 Bf6 34.e3 Bd8 35.Qe4 Qe7 36.Qd3 Bb6 37.Bc4 Qb7+ 38.Bd5 Qe7 39.Bc4 1/2-1/2
2026.04.14 26th ch-EUR Indiv 2026
2241103 IM Sieciechowicz, M (2383) Gov, Guy (2222) 1-0
1.Nf3 d5 2.g3 Bg4 3.Bg2 c6 4.h3 Bh5 5.c4 Nf6 6.Qb3 Qc7 7.cxd5 cxd5 8.Nc3 Bxf3 9.Bxf3 e6 10.d3 Nc6 11.O-O a6 12.Bf4 Bd6 13.Bxd6 Qxd6 14.Qxb7 O-O 15.Qb3 Rfb8 16.Qc2 Nd4 17.Qd2 Nxf3+ 18.exf3 Rb4 19.Rac1 h5 20.h4 Nd7 21.f4 Rab8 22.b3 e5 23.Ne2 Qe6 24.Kg2 Qf5 25.Rc6 a5 26.Rfc1 Kh7 27.Ra6 R8b5 28.Rc7 exf4 29.Nxf4 Ne5 30.Qe3 Ng4 31.Qf3 Rd4 32.Raa7 Nh6 33.Qe3 Rbb4 34.Nh3 Rg4 35.Ng5+ Rxg5 36.hxg5 Ng4 37.Qf3 Qxf3+ 38.Kxf3 Ne5+ 39.Ke2 Rb5 40.f4 1-0
2026.04.13 26th ch-EUR Indiv 2026
2236629 GM Amar, Elham (2586) IM Sieciechowicz, M (2383) 1-0
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6 5.Nf3 Bd7 6.Bd3 Bb5 7.dxc5 Bxc5 8.b4 Bxd3 9.Qxd3 Bf8 10.O-O Nc6 11.Na3 Nge7 12.Be3 Qd8 13.Bc5 Nf5 14.Bxf8 Kxf8 15.b5 Na5 16.c4 dxc4 17.Qc3 Qc7 18.Rac1 Rc8 19.Ng5 h5 20.Rfd1 b6 21.Rd2 Rh6 22.Rcd1 Rg6 23.Rd7 Qb8 24.Nxf7 Kg8 25.Rd8+ Kh7 26.Qh3 Rh6 27.f4 Kg6 28.Rxc8 Qxc8 29.Nxh6 Nxh6 30.Qe3 Nf5 31.Qf2 Qf8 32.Nc2 c3 33.Nd4 Qc5 34.Nxf5 Kxf5 35.Qxc5 bxc5 36.Rc1 c4 37.Rxc3 Ke4 38.Ra3 Nb7 39.Rxa7 Nc5 40.Rc7 Kd4 41.Kf1 Kd5 1-0
2026.04.12 26th ch-EUR Indiv 2026
2236569 IM Sieciechowicz, M (2383) IM Nowak, L2 (2166) 1-0
1.Nf3 c5 2.g3 Nc6 3.Bg2 g6 4.O-O Bg7 5.c4 e5 6.Nc3 d6 7.a3 Nge7 8.Rb1 a5 9.d3 O-O 10.Ne1 Be6 11.Bg5 f6 12.Be3 Rb8 13.Nc2 Nd4 14.b4 axb4 15.axb4 b6 16.Bd2 Qd7 17.e3 Nxc2 18.Qxc2 Bh3 19.Qa4 Qe6 20.Bxh3 Qxh3 21.bxc5 dxc5 22.Nd5 Qe6 23.e4 f5 24.f3 Nxd5 25.cxd5 Qd6 26.Kg2 f4 27.g4 Bf6 28.Be1 Ra8 29.Qb5 Bd8 30.Bf2 Ra5 31.Qb2 Bc7 32.Ra1 Rfa8 33.Rxa5 Rxa5 34.Ra1 Rxa1 35.Qxa1 g5 36.Qa8+ Kg7 37.Qe8 Bd8 38.Be1 Qe7 39.Qc6 Bc7 40.Bc3 Qd6 41.Qe8 Bb8 42.h4 h6 43.h5 Bc7 44.Kf1 c4 45.d4 Qa3 46.Qd7+ Kf8 47.Qc8+ Kf7 48.Qxc7+ Kf8 49.Qc8+ Kf7 50.Qf5+ Kg8 51.Qg6+ Kf8 52.Qxh6+ Kf7 53.Qe6+ Kf8 54.Qf6+ Ke8 55.d6 Qc1+ 56.Be1 Kd7 57.d5 Kc8 58.Qe7 Kb8 59.Qc7+ Ka8 60.d7 1-0
2026.04.10 26th ch-EUR Indiv 2026
2236217 CM Tezcan, Alper (2122) IM Sieciechowicz, M (2383) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Bb4 6.Nxc6 bxc6 7.Bd3 O-O 8.O-O d5 9.exd5 cxd5 10.Bg5 c6 11.Qf3 Bd6 12.Rfe1 h6 13.Bxf6 Qxf6 14.Qxf6 gxf6 15.Ne2 Rb8 16.b3 Bd7 17.Ng3 Be5 18.Rad1 Rfe8 19.Nf5 h5 20.h4 Be6 21.Ne3 Bc3 22.Re2 c5 23.Kf1 Red8 24.Bf5 Bd4 25.Bd3 Be5 26.c4 dxc4 27.Nxc4 Bxc4 28.bxc4 Kg7 29.g3 Rd7 1/2-1/2
2026.04.09 26th ch-EUR Indiv 2026
2235890 IM Sieciechowicz, M (2383) GM Subelj, Jan (2543) 0-1
1.d4 Nf6 2.c4 c6 3.Nc3 d5 4.Nf3 e6 5.Bg5 h6 6.Bh4 dxc4 7.e4 g5 8.Bg3 b5 9.Be2 Bb7 10.O-O Nbd7 11.Ne5 Bg7 12.Nxf7 Kxf7 13.e5 Nd5 14.Ne4 Ke7 15.Nd6 Rb8 16.a4 c5 17.dxc5 Qc7 18.Bg4 Nxc5 19.axb5 Nf4 20.Rxa7 Bxe5 21.Nxc4 Rhd8 22.Qc2 Ncd3 23.Bf3 Kf6 24.Qb3 Bd4 25.Bxf4 gxf4 26.b6 Qc8 27.Rxb7 Rxb7 28.Qb5 Rb8 29.Bc6 Bxb6 30.Qh5 Qxc6 31.Qxh6+ Ke7 32.Qh7+ Ke8 33.Qg6+ Kd7 34.Qxd3+ Kc7 35.Qc3 Rd5 36.Nxb6 Rxb6 37.Qg7+ Qd7 38.Qc3+ Kb7 39.Qf3 Rb4 40.h3 e5 41.Re1 Qc6 42.Kh2 Rbb5 43.Qa3 Qc5 44.Qf3 Qd4 45.Re2 Kb6 46.Qg4 f3 47.Qxf3 Qf4+ 48.Qxf4 exf4 49.Re4 Rf5 50.b4 Rbe5 51.Rxe5 Rxe5 52.h4 Kc6 53.Kh3 Kd5 54.Kg4 Re2 0-1
2026.04.08 26th ch-EUR Indiv 2026
2235629 GM Meshkovs, Nikita (2532) IM Sieciechowicz, M (2383) 1/2-1/2
1.c4 c6 2.Nf3 d5 3.e3 Nf6 4.Nc3 Nbd7 5.d4 e6 6.Qc2 b6 7.cxd5 cxd5 8.Nb5 Bb4+ 9.Bd2 Bxd2+ 10.Nxd2 O-O 11.Rc1 Ba6 12.Qa4 Rc8 13.Rd1 Bxb5 14.Bxb5 Qc7 15.O-O Nb8 16.Nf3 Qe7 17.Rc1 Rc7 18.Rxc7 Qxc7 19.Ne5 Rc8 20.f3 Qe7 21.Rf2 Rc7 22.Rc2 Rxc2 23.Qxc2 Qb7 24.Qa4 Qc7 25.Kf2 Kf8 26.Ke2 Ng8 27.Kd2 Ne7 28.Qa3 f6 29.Nd3 Kf7 30.g3 Nbc6 31.Qc3 Qd6 32.a3 g6 33.Nf4 Kg7 34.Nd3 Kf7 35.Nf4 Kg7 36.Nd3 1/2-1/2
2026.04.07 26th ch-EUR Indiv 2026
2235520 IM Sieciechowicz, M (2383) Wasiluk, Mateusz (1933) 1-0
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5 6.Bg5 h6 7.Bh4 Nc6 8.e3 g5 9.Bg3 h5 10.Bb5 h4 11.Be5 O-O 12.h3 Qe7 13.Nf3 Ne4 14.Bh2 Bf5 15.Bd3 Na5 16.O-O Bxc3 17.bxc3 Nc4 18.Ne5 Nxe5 19.Bxe5 f6 20.Bh2 Bh7 21.c4 c6 22.cxd5 cxd5 23.Rac1 Rf7 24.Rfe1 Rd8 25.Qb2 Nd6 26.Bxh7+ Kxh7 27.Qc2+ Kg7 28.Qc5 Nc8 29.Qb5 Nb6 30.Bc7 Rd7 31.Bxb6 axb6 32.Qxb6 Qd6 33.Qxd6 Rxd6 34.Rc5 b6 35.Rb5 Ra7 36.Re2 Kf7 37.Reb2 Ra6 38.Kf1 Ke6 39.Ke2 Kd7 40.Kd3 Kc6 41.R5b4 Kc7 42.e4 Ra3+ 43.R4b3 dxe4+ 44.Kxe4 Ra5 45.Rb5 Ra8 46.d5 Ra4+ 47.R5b4 Ra5 48.Rc4+ Kd7 49.Rd2 Ra8 50.Kf5 Ra5 51.Rcd4 b5 52.f4 gxf4 53.Rxf4 Rda6 54.Rff2 b4 55.Kg6 Rd6 56.Rd4 Raxd5 57.Rxb4 Rd2 58.Rb2 Rxb2 59.Rxb2 Ra6 60.Re2 Kd8 61.a4 Rxa4 62.Kxf6 Ra5 63.Re4 Rh5 64.Re5 Rh6+ 65.Kg7 Rd6 66.Re4 Rd2 67.Rg4 Ke7 68.Kg6 Ke6 69.Kg5 Ra2 70.Kxh4 Kf5 71.Kg3 Ra3+ 72.Kh2 Ra2 73.Rb4 Ra3 74.h4 Kg6 75.Rb5 Kh6 76.g3 Kg6 77.Kh3 Ra4 78.Rb6+ Kh7 79.h5 Ra1 80.g4 Rh1+ 81.Kg3 Kg7 82.Kf4 Ra1 83.h6+ Kh7 84.Kg5 Ra5+ 85.Kh4 Rc5 86.Rf6 Ra5 87.g5 Ra1 88.Rf7+ Kg8 89.g6 Rh1+ 90.Kg5 Rg1+ 91.Kf6 Rf1+ 92.Ke6 Re1+ 93.Kd5 Rd1+ 94.Ke5 Re1+ 95.Kd4 Rd1+ 96.Ke3 Re1+ 97.Kf2 Re8 98.h7+ Kh8 99.g7+ 1-0
2026.03.22 57th TCh-ITA Abruzzo 2026
2217260 IM Sieciechowicz, M (2395) GM Bosiocic, Mari (2542) 0-1
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bd6 6.e4 c5 7.cxd5 exd5 8.e5 cxd4 9.Qxd4 Nc6 10.Bb5 Qe7 11.f4 Bc5 12.Qd3 O-O 13.b4 Bb6 14.Nf3 g6 15.Bd2 Rd8 16.Bxc6 bxc6 17.Nd4 Ne4 18.Nxe4 dxe4 19.Nxc6 Rxd3 20.Nxe7+ Kf8 21.Nxc8 Rxc8 22.Rc1 Rcd8 23.Bc3 Be3 24.Ke2 Bxc1 25.Rxc1 Rc8 26.Bb2 Rxc1 27.Bxc1 a6 28.a4 Ke8 29.Be3 Ra3 30.a5 Ra2+ 31.Kf1 Kd7 32.h3 Kc6 33.Bc5 Kd5 34.g4 g5 0-1
2026.03.22 57th TCh-ITA Abruzzo 2026
2217276 FM Sukovic, Andrej (2268) IM Sieciechowicz, M (2395) 1/2-1/2
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4 5.d4 Nd6 6.dxe5 Nxb5 7.a4 Nbd4 8.Nxd4 d5 9.exd6 Nxd4 10.Qxd4 Qxd6 11.Qe4+ Qe6 12.Qd4 Qd6 13.Qe4+ 1/2-1/2
2026.03.21 57th TCh-ITA Abruzzo 2026
2217240 IM Sieciechowicz, M (2395) IM Krstulovic, Alex (2422) 1/2-1/2
1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 O-O 10.O-O e6 11.dxc5 Ne5 12.Qxd8 Rxd8 13.Rfd1 Bd7 14.Bb3 Rdc8 15.h3 Bc6 16.Nd4 Bxe4 17.f3 Bd5 18.Bxd5 exd5 19.Nb5 Nc4 20.Bf2 b6 21.cxb6 axb6 22.Rxd5 Na3 23.Nxa3 1/2-1/2
2026.03.21 57th TCh-ITA Abruzzo 2026
2217248 Di Giacinto, Gaudio (2045) IM Sieciechowicz, M (2395) 1-0
1.Nf3 d5 2.b3 c5 3.Bb2 Nc6 4.e3 a6 5.Be2 Nf6 6.O-O Bg4 7.Ne5 Nxe5 8.Bxe5 Bxe2 9.Qxe2 e6 10.d3 Bd6 11.Bxd6 Qxd6 12.Nd2 O-O 13.e4 Qc6 14.e5 Nd7 15.Rae1 b5 16.Qg4 a5 17.Re3 a4 18.Rg3 g6 19.Nf3 f6 20.h4 Nxe5 21.Nxe5 fxe5 22.h5 Rf6 23.Qg5 Raf8 24.hxg6 Rxg6 25.Qxe5 Rf5 26.Rxg6+ hxg6 27.Qg3 e5 28.bxa4 b4 29.Re1 Qf6 30.Qe3 d4 31.Qg3 Rg5 32.Qh3 Qc6 33.a5 Kg7 34.f4 exf4 35.Re7+ Kf6 36.Re4 Rh5 37.Rxf4+ Kg7 38.Qg4 Qd5 39.Qc8 Qd6 40.Qb7+ Kh6 41.Qf7 Qe5 42.Qf8+ Kg5 43.Re4 Qc7 44.a6 Rh7 45.a7 1-0
2026.03.20 57th TCh-ITA Abruzzo 2026
2217220 IM Sieciechowicz, M (2395) GM Klimkowski, Jan (2522) 1/2-1/2
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Nbd7 5.Bg5 Bb4 6.cxd5 exd5 7.e3 h6 8.Bh4 g5 9.Bg3 Ne4 10.Nd2 Nxg3 11.hxg3 Nb6 12.Bd3 Be6 13.Qc2 c6 14.O-O h5 15.Bf5 Qf6 16.Bxe6 fxe6 17.Nf3 O-O-O 18.e4 h4 19.e5 Qh6 20.g4 h3 21.g3 h2+ 22.Kh1 Qh3 23.Nxg5 Qxg4 24.f4 Rdg8 25.Qe2 Qxg3 26.Rad1 Qh4 27.Rd3 Qh6 28.Qg4 Rg6 1/2-1/2
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