| FIDE | Country | B-Year | Gender | Standard | Rapid | Blitz |
|---|---|---|---|---|---|---|
1047990
|
NED | 1998 | M | 2211 | 0 | 2015 |
63
games
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| 61338 | Koster, Chiel (2141) | FM Kurt, Sascha (2312) | 1/2-1/2 | |
| 1.c4 e5 2.Nc3 Nc6 3.Nf3 f5 4.d4 e4 5.d5 exf3 6.dxc6 fxg2 7.cxd7+ Qxd7 8.Qxd7+ Bxd7 9.Bxg2 O-O-O 10.Be3 a6 11.O-O-O Nf6 12.Nd5 Nxd5 13.Bxd5 Be7 14.Bd4 Bg5+ 15.e3 f4 16.Rdg1 Bf6 17.Bxf6 gxf6 18.exf4 Bc6 19.Bxc6 bxc6 20.Rd1 Rhg8 21.Rxd8+ Rxd8 22.Rd1 1/2-1/2 | ||||
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| 61312 | FM Barzen, P (2348) | Koster, Chiel (2141) | 1-0 | |
| 1.e4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 g6 5.e5 Ng4 6.Bxc6 dxc6 7.O-O Bg7 8.Re1 O-O 9.d3 f6 10.exf6 exf6 11.Bf4 g5 12.Bd2 Nh6 13.Ne4 Nf5 14.Bc3 b6 15.Nfd2 Nd4 16.Ng3 f5 17.Nh5 Bh8 18.f4 g4 19.Nc4 Be6 20.Ne5 Qd6 21.Re3 Rae8 22.Qd2 Bf7 23.Nxf7 Kxf7 24.Rae1 Rxe3 25.Rxe3 Kg6 26.Ng3 Qxf4 27.Ne2 Qd6 28.Bxd4 cxd4 29.Re6+ Qxe6 30.Nf4+ Kf6 31.Nxe6 Kxe6 32.Qh6+ Ke7 33.Qxh7+ Ke8 34.Qxa7 f4 35.Qxb6 f3 36.Qxc6+ Ke7 37.Qe4+ Kd6 38.Qxg4 f2+ 39.Kf1 Be5 40.g3 Kd5 1-0 | ||||
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| 84794 | Koster, Chiel (2123) | Kazarjan, Gachatur (2211) | 1/2-1/2 | |
| 1.Nf3 d5 2.g3 c5 3.Bg2 Nc6 4.d4 Nf6 5.O-O e6 6.c4 Be7 7.cxd5 exd5 8.Nc3 O-O 9.Bf4 h6 10.h4 Bf5 11.Rc1 c4 12.Ne5 Qa5 13.Bd2 Qd8 14.Nxd5 Nxd5 15.e4 Nxe5 16.dxe5 Be6 17.exd5 Bxd5 18.Bxh6 Bxg2 19.Qg4 Bf6 20.exf6 Qxf6 21.Bxg7 Qxg7 22.Qxg7+ Kxg7 23.Kxg2 Rac8 24.Rfe1 Rfd8 25.Rcd1 b5 26.Kf3 Kf6 27.Rxd8 Rxd8 28.Ke2 Rd6 29.Rd1 Ra6 30.a3 c3 31.Rb1 cxb2 32.Rxb2 Rxa3 33.Rxb5 Kg6 34.g4 Kh6 35.Rf5 Kg6 36.h5+ Kg7 37.f4 a5 38.g5 a4 39.h6+ Kg8 40.Ra5 Ra1 41.Kf3 a3 42.Kg4 a2 43.Kf5 Kh8 44.Ra7 Kg8 45.Ra4 Kh8 46.Kf6 Rf1 47.Rxa2 Rxf4+ 48.Ke7 Kh7 49.Kf8 Rf5 1/2-1/2 | ||||
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| 84825 | FM Ritzerveld, Noah (2272) | Koster, Chiel (2123) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Nd5 Nxd5 8.exd5 Nb8 9.a4 a6 10.Na3 Be7 11.Bd2 O-O 12.Be2 f5 13.a5 Nd7 14.b4 Nf6 15.c4 Ne4 16.Be3 Bg5 17.O-O Bxe3 18.fxe3 b6 19.Nc2 bxa5 20.Rxa5 f4 21.Qd3 Ng5 22.exf4 exf4 23.Nd4 Qb6 24.Kh1 Qxb4 25.Raa1 f3 26.Bxf3 Nxf3 27.Rxf3 Bg4 28.Rxf8+ Rxf8 29.h3 Bd7 30.Rb1 Qa5 31.Kh2 Qc7 32.Re1 h6 33.Re7 Qd8 34.Qe4 Re8 35.Rxe8+ Qxe8 36.Qxe8+ Bxe8 37.Nf5 a5 38.Nxd6 a4 39.Nb5 Kf7 40.Na3 Kf6 41.Kg3 Ke5 42.Kf3 Kd4 43.d6 Kc5 44.Ke4 Kxd6 1/2-1/2 | ||||
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| 84741 | Vennix, Tom (1971) | Koster, Chiel (2123) | 0-1 | |
| 1.g3 e5 2.c4 Nc6 3.Bg2 g6 4.Nc3 Bg7 5.Nf3 d6 6.d3 f5 7.a3 Nf6 8.Qc2 O-O 9.O-O h6 10.Rb1 g5 11.b4 Ne7 12.e4 f4 13.Nd5 g4 14.Nh4 f3 15.Bh1 Nc6 16.Be3 Kh7 17.Rfc1 Nd4 18.Bxd4 exd4 19.c5 Nxd5 20.exd5 Be5 21.b5 dxc5 22.Qxc5 Qf6 23.Re1 Bd6 24.Qc4 Bd7 25.Re4 Rfe8 26.Rxd4 h5 27.Re4 Re7 28.h3 Rae8 29.Rbe1 Re5 30.a4 b6 31.Rxe5 Bxe5 32.Bxf3 gxf3 33.Qe4+ Kg7 34.Qxf3 Qxf3 35.Nxf3 Bd6 36.Ra1 Bxh3 37.a5 Bd7 38.axb6 axb6 39.Nd4 Re5 40.Ne6+ Kf6 41.Nf4 Bxb5 42.Ra8 Re1+ 43.Kg2 Bxf4 44.gxf4 Bxd3 45.d6 Be4+ 0-1 | ||||
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| 84715 | Koster, Chiel (2123) | De Vries, Emma (1995) | 1-0 | |
| 1.Nf3 Nf6 2.g3 d5 3.d4 g6 4.Bg2 Bg7 5.O-O O-O 6.c4 c6 7.cxd5 cxd5 8.Nc3 Nc6 9.Bf4 Nh5 10.Be3 a6 11.Rc1 Qd6 12.Ne5 Nxe5 13.dxe5 Bxe5 14.Nxd5 Bxb2 15.Bc5 Qe6 16.Nc7 Qxa2 17.Nxa8 Bxc1 18.Qxc1 Be6 19.Nb6 Qxe2 20.Re1 Qb5 21.Qe3 Ng7 22.Bd5 Nf5 23.Qa3 Bxd5 24.Nxd5 Rc8 25.Nxe7+ Nxe7 26.Bxe7 Qc6 27.Qa1 Qc3 28.Qxc3 Rxc3 29.Bf6 Rc8 30.Re7 1-0 | ||||
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| 84686 | Blijlevens, P (1890) | Koster, Chiel (2123) | 1/2-1/2 | |
| 1.d4 Nf6 2.Bg5 c6 3.Nd2 d5 4.e3 Bf5 5.Bxf6 exf6 6.c3 Bd6 7.Ndf3 Nd7 8.Bd3 Bg4 9.Qc2 g6 10.h3 Be6 11.Ne2 Qc7 12.O-O f5 13.Ng5 Nf8 14.Nxe6 Nxe6 15.c4 dxc4 16.Bxc4 O-O 17.Bxe6 fxe6 18.Qc4 Rae8 19.Rac1 Qa5 20.Rfd1 f4 21.Nxf4 Bxf4 22.exf4 Rxf4 23.Rc3 Qf5 24.Rd2 Qa5 25.Rd1 Qf5 26.Rd2 Rf8 27.f3 Rd8 28.Rcd3 Rd5 29.Qb3 Qf7 30.Qc3 Qd7 31.Kf2 Qd6 32.Kg1 Qd7 33.Kf2 Qd6 34.Rd1 Rf7 35.Qa3 Qxa3 36.Rxa3 e5 37.Rad3 e4 38.Re3 exf3 39.Rxf3 Rfd7 40.Rfd3 c5 41.Ke3 Re7+ 42.Kf2 cxd4 43.Rxd4 Rf5+ 44.Kg1 Re2 45.R1d2 1/2-1/2 | ||||
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| 432745 | Koster, Chiel (2058) | Grooten, Tommy (2146) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be3 a6 7.g4 h6 8.h4 Nc6 9.Rg1 d5 10.g5 hxg5 11.hxg5 Nxe4 12.Nxe4 dxe4 13.Nxc6 Qxd1+ 14.Rxd1 bxc6 15.Bg2 Rh4 16.Rd4 Rb8 17.Bxe4 Bd7 18.Bd3 Rh3 19.Bf1 Rh5 20.Be2 Rh3 21.Bg4 Rh4 22.Be2 Rh3 23.Bg4 Rh4 24.Be2 1/2-1/2 | ||||
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| 432722 | Zwirs, Jasper (2088) | Koster, Chiel (2058) | 1/2-1/2 | |
| 1.d4 Nf6 2.Nc3 d5 3.Bf4 a6 4.e3 Bf5 5.Nf3 e6 6.Ne5 h6 7.Bd3 Bxd3 8.cxd3 Nbd7 9.O-O c5 10.dxc5 Bxc5 11.Qb3 d4 12.Nxd7 Qxd7 13.exd4 Bxd4 14.Ne4 O-O 15.Nxf6+ Bxf6 16.Rfd1 Rfd8 17.Rac1 b5 18.Be3 Qd5 19.Qa3 a5 20.b3 a4 21.Qb4 axb3 22.axb3 Qh5 23.h3 Rd5 24.Qe4 Qe5 25.Qxe5 Bxe5 1/2-1/2 | ||||
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| 432690 | Koster, Chiel (2058) | IM Buckels, Valentin (2478) | 0-1 | |
| 1.e4 c6 2.Nc3 d5 3.g3 d4 4.Nce2 c5 5.f4 Nc6 6.Nf3 Bg4 7.Bg2 d3 8.cxd3 Qxd3 9.O-O e5 10.h3 Bxf3 11.Rxf3 Qd7 12.fxe5 Nxe5 13.Rf5 f6 14.d4 cxd4 15.Qxd4 Qxd4+ 16.Nxd4 Bd6 17.Be3 Ne7 18.Rff1 Nc4 19.Bf2 Be5 20.b3 Nb2 21.Nf3 Nc6 22.Nxe5 Nxe5 23.Rac1 Kd7 24.Rc2 Nbd3 25.Rd1 Rhd8 26.Bf1 Ke8 27.Rc7 Nxf2 28.Rxd8+ Rxd8 29.Kxf2 Rd7 30.Bb5 Kd8 31.Rxd7+ Nxd7 32.Ke3 Ne5 33.Kd4 Ke7 34.Kd5 h5 35.h4 g6 36.Be2 Nc6 37.a3 Ne5 38.b4 Nd7 39.Bd1 Nb6+ 40.Kc5 Ke6 41.Kd4 Kd6 42.Bb3 Nd7 43.Bd5 b6 44.Bc4 Ne5 45.Bb3 Nc6+ 46.Ke3 a5 47.Bf7 Ne5 48.Be8 Ke7 49.Bb5 Ke6 50.Kd4 axb4 51.axb4 Kd6 52.Be8 Ke7 53.Bb5 Ke6 54.Be8 Kd6 55.Ke3 Ke7 56.Bb5 Ke6 57.Be8 Kd6 58.Kd4 Ke7 59.Bb5 Ke6 60.Ba4 g5 61.Bd1 Nc6+ 62.Kc4 g4 63.Kb5 Kd6 64.Kxb6 Nxb4 65.Kb5 Nd3 66.Be2 Nf2 67.Bc4 Nxe4 68.Bf7 Nxg3 69.Kc4 Ke5 70.Kd3 f5 71.Ke3 f4+ 72.Kf2 Ne4+ 73.Kg2 f3+ 74.Kh2 g3+ 75.Kh3 Kf4 76.Bxh5 Nf2# 0-1 | ||||
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| 432670 | FM Stillger, B (2263) | Koster, Chiel (2058) | 0-1 | |
| 1.Nf3 d5 2.g3 c6 3.Bg2 Bg4 4.h3 Bh5 5.d4 Nf6 6.O-O h6 7.Ne5 Nfd7 8.f4 f5 9.Nd2 Nxe5 10.fxe5 e6 11.Nf3 Be7 12.Be3 O-O 13.b3 a5 14.c4 Na6 15.Qd2 a4 16.c5 Nc7 17.b4 Nb5 18.Ne1 Kh7 19.Nd3 g5 20.Bf2 Rg8 21.e3 a3 22.Kh2 Qe8 23.Rac1 Qf7 24.Be1 Qg7 25.Nf2 Raf8 26.g4 Bg6 27.Nd1 h5 28.Nc3 Nxc3 29.Rxc3 hxg4 30.hxg4 Qh6+ 31.Kg1 Kg7 32.e4 fxg4 33.Rxf8 Rxf8 34.exd5 exd5 35.Bg3 Qh7 36.Qe2 Bf7 37.e6 Qb1+ 38.Qe1 Qxe1+ 39.Bxe1 Bxe6 40.Re3 Kf7 41.Rxa3 Bf6 42.Bf2 Kg6 43.Rb3 Ra8 44.a3 Ra4 45.Bf1 Bf5 46.Be2 Ra8 47.Bd3 Bxd3 48.Rxd3 Kf5 49.Kg2 Rh8 50.a4 Rh3 51.Rg3 Rxg3+ 52.Kxg3 Ke4 53.b5 Bxd4 54.bxc6 bxc6 55.a5 Be5+ 56.Kxg4 d4 57.Kxg5 Bb8 58.Kf6 d3 59.Be1 Kd4 60.Ke6 Kxc5 61.Kd7 Kb5 62.a6 Kb6 63.Bd2 c5 64.Bc3 Be5 65.Bd2 c4 66.Ke6 c3 67.Be3+ Kxa6 68.Kxe5 d2 0-1 | ||||
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| 440955 | Koster, Chiel (2058) | Smit, Manuel (1969) | 1-0 | |
| 1.Nf3 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.O-O d6 6.Nc3 c6 7.Rb1 Nbd7 8.d3 e5 9.Ne1 Nc5 10.Nc2 Ne6 11.e4 Nd4 12.Nxd4 exd4 13.Ne2 Ng4 14.h3 Ne5 15.f4 Nd7 16.g4 Re8 17.g5 a5 18.b3 d5 19.cxd5 cxd5 20.e5 Nc5 21.Bb2 Bf5 22.Rf3 Ne6 23.Ng3 Bf8 24.Nxf5 gxf5 25.Rf2 Bb4 26.Qf3 a4 27.bxa4 Rxa4 28.Qxd5 Bc3 29.Bc1 Re7 30.Qf3 Qa5 31.a3 Nc5 32.h4 Qa6 33.Bf1 Qe6 34.Rb5 Nb3 35.Qd1 Nxc1 36.Qxa4 Qc6 37.Bg2 Qe8 38.Qc4 Rc7 39.Qxc7 Qxb5 40.Qd8+ Kg7 41.Bd5 Qa6 42.e6 1-0 | ||||
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| 440930 | Van Kuijk, Vadim (2131) | Koster, Chiel (2058) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 Bg5 12.Nc2 Rb8 13.a4 bxa4 14.Ncb4 Nxb4 15.Nxb4 Bd7 16.Bxa6 Qa5 17.Qd5 Qxd5 18.exd5 O-O 19.O-O Rb6 20.Bd3 f5 21.Bc2 Ra8 22.Ra3 e4 23.b3 Bd2 24.bxa4 Bxc3 25.Rxc3 Rxb4 26.Ra1 Ra5 27.Rc7 Be8 28.g3 h5 29.h4 Bf7 30.Rc6 Bxd5 31.Rxd6 Rb2 32.Bd1 e3 33.fxe3 Kh7 34.Bxh5 Rg2+ 1/2-1/2 | ||||
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| 440898 | Koster, Chiel (2058) | Shakhverdian, William (2157) | 0-1 | |
| 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O 5.c4 d6 6.O-O c5 7.Nc3 Nc6 8.d5 Na5 9.Nd2 e6 10.e4 exd5 11.cxd5 a6 12.Rb1 b5 13.b4 cxb4 14.Rxb4 Nd7 15.Ne2 Ne5 16.Nb3 Bd7 17.Nbd4 Nec4 18.Kh1 Re8 19.f4 Bg4 20.h3 Bxd4 21.hxg4 Bc5 22.Rb1 Ne3 23.Bxe3 Bxe3 24.a4 Nc4 25.Qd3 Qd7 26.Rf3 Bc5 27.Bh3 h5 28.f5 Ne5 29.Qd2 Nxf3 30.Qh6 Qe7 31.fxg6 fxg6 32.gxh5 Qg5 33.Be6+ Rxe6 34.Qxg5 Nxg5 35.dxe6 b4 36.Nf4 gxh5 37.e7 Re8 38.Nd5 Kg7 39.Re1 Bd4 40.Nxb4 Bc3 41.Rb1 Bxb4 42.Rxb4 Rxe7 43.Rb6 Nxe4 44.Rxa6 Nxg3+ 45.Kg2 Nf5 46.Kf3 Kf6 47.Kf4 Rb7 48.Ra8 Rb4+ 49.Kf3 h4 50.a5 Nd4+ 51.Kg2 Nc6 52.Ra6 Rc4 53.Ra8 Ke6 54.a6 Ra4 55.Kh3 Kd7 0-1 | ||||
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| 440874 | Ritzerveld, Noah (2181) | Koster, Chiel (2058) | 1/2-1/2 | |
| 1.e4 e6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Nxf6+ Nxf6 7.Bd3 c5 8.Be3 Qc7 9.O-O c4 10.Be2 a6 11.Ne5 b5 12.a4 Bb7 13.axb5 axb5 14.b3 Bd6 15.bxc4 bxc4 16.Rxa8+ Bxa8 17.Bxc4 O-O 18.f4 Nd5 19.Bxd5 Bxd5 20.Qd2 f6 21.Nd3 Rc8 22.Rc1 Ba3 23.Ra1 Qc3 24.Qxc3 Rxc3 25.Bf2 Bd6 26.Rc1 Be4 27.Nc5 Bf5 28.g3 Kf7 29.Be1 Rxc2 30.Rxc2 Bxc2 31.Kf2 Bf5 32.Kf3 h5 33.Ba5 Bb1 34.Ne4 Ba3 35.Nc3 Bd3 36.d5 exd5 37.Nxd5 Ba6 38.Bb4 Bc1 39.Ne3 Bb7+ 40.Kf2 Ke6 41.Nc4 Ba6 42.Bd2 Bxc4 43.Bxc1 Kf5 44.Ba3 g5 45.fxg5 fxg5 46.h4 gxh4 47.gxh4 Kg4 48.Be7 Kh3 49.Ke3 Kh2 50.Kd4 Be2 1/2-1/2 | ||||
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| 440850 | Koster, Chiel (2058) | IM Grooten, H (2211) | 1/2-1/2 | |
| 1.e4 c6 2.Nc3 d5 3.g3 dxe4 4.Nxe4 Bf5 5.d3 Nd7 6.Bg2 Ngf6 7.Qe2 e6 8.Nf3 Be7 9.Bd2 Qb6 10.O-O h6 11.Be3 Qa6 12.Nxf6+ Bxf6 13.Bd4 O-O 14.Bxf6 Nxf6 15.Ne5 Rad8 16.Rfd1 Nd5 17.c4 Ne7 18.d4 Bh7 19.Qe1 Rfe8 20.Qc3 f6 21.Nd3 Bxd3 22.Rxd3 Nf5 23.Bh3 Nd6 24.b3 Ne4 25.Qc2 Qb6 26.Bg2 Ng5 27.Rad1 Qc7 28.R3d2 Nf7 29.d5 cxd5 30.cxd5 Qxc2 31.Rxc2 Re7 32.Re1 e5 33.Rd1 Nd6 34.Rdc1 Kf7 35.Rc7 Rdd7 36.Rxd7 Rxd7 37.Kf1 Ke7 38.Bh3 f5 39.g4 g6 40.gxf5 gxf5 41.Ke2 Kf6 42.Bg2 Rg7 43.Bf1 e4 44.f4 exf3+ 45.Kxf3 Ke5 46.Bc4 Rg4 47.a4 Ne4 48.Rd1 Rf4+ 49.Ke3 Rh4 50.d6 Nxd6 51.Rd5+ Ke6 52.Rc5+ Kf6 53.Bd5 Rxh2 54.Rc7 Rh3+ 55.Kd4 a5 56.Kc5 Ne4+ 57.Kd4 Rh4 58.Rf7+ Kg6 59.Ke5 Ng3 60.Rxb7 Rh2 61.b4 axb4 62.Rxb4 Re2+ 63.Kf4 Rd2 64.Rb6+ Kg7 65.Bb3 Ne2+ 66.Kxf5 1/2-1/2 | ||||
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| 523351 | Coronel, Joshua (2055) | Koster, Chiel (2046) | 0-1 | |
| 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.Bxc6 dxc6 7.d3 Ne7 8.Be3 b6 9.a3 a5 10.Nbd2 Qc7 11.b4 cxb4 12.axb4 a4 13.c4 b5 14.Qc2 Qd7 15.Rec1 Bb7 16.Nb1 O-O 17.Na3 Rac8 18.Bc5 Ba6 19.Rd1 Rfe8 20.Qb2 Qe6 21.Rac1 h6 22.Be3 f5 23.cxb5 cxb5 24.Rc5 Rxc5 25.Bxc5 Rd8 26.Qc2 Nc6 27.Rb1 Qd7 28.Bb6 Rc8 29.Bc5 fxe4 30.dxe4 Nxb4 31.Rxb4 Rxc5 32.Qa2+ Kh7 33.h3 Rc1+ 34.Kh2 Bf8 35.Rb2 b4 36.Rd2 Qe8 37.Qb2 Rc7 38.Nc2 b3 39.Ne3 Qe6 40.Rd5 Rb7 41.g3 a3 42.Qb1 a2 43.Qb2 Rf7 44.Nxe5 Bg7 45.f4 Bb7 46.Ra5 Bxe4 47.N3c4 Bxe5 48.Nxe5 Rc7 49.Qd4 b2 50.Ra7 Qe7 51.Qxe4 b1=Q 0-1 | ||||
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| 523361 | Koster, Chiel (2046) | Baselmans, Sam (2220) | 0-1 | |
| 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 h6 5.c3 d6 6.Nbd2 g6 7.O-O Bg7 8.d4 O-O 9.dxe5 dxe5 10.Qe2 Nh5 11.g3 Bg4 12.Qe3 Kh7 13.Be2 Be6 14.Nc4 Bxc4 15.Bxc4 Qe7 16.Qe2 Nd8 17.Nh4 Nf4 18.Qf3 Nde6 19.gxf4 Qxh4 20.f5 Nf4 21.Qg3 Nh3+ 22.Kg2 Qxe4+ 23.Kxh3 Qxc4 24.Rg1 Qe4 0-1 | ||||
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| 523294 | Koster, Chiel (2046) | GM Beerdsen, Thomas (2501) | 0-1 | |
| 1.e4 c6 2.Nc3 d5 3.g3 e5 4.exd5 cxd5 5.d4 e4 6.Bg2 Nc6 7.Nge2 f5 8.f3 Be7 9.fxe4 dxe4 10.d5 Ne5 11.Bf4 Ng6 12.Qd4 Nf6 13.O-O-O Nxf4 14.Nxf4 Qb6 15.Qd2 Bd6 16.Rhf1 g6 17.h3 Bd7 18.g4 O-O-O 19.gxf5 Bxf5 20.Ne6 Bxe6 21.dxe6 Ba3 22.Na4 Bxb2+ 23.Kb1 Qb5 24.Nxb2 Rxd2 25.Rxd2 Qe5 26.Nc4 Qxe6 27.Rd6 Qxc4 28.Rdxf6 Rd8 0-1 | ||||
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| 523319 | Matthijssen, Mitchell (1893) | Koster, Chiel (2046) | 0-1 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 O-O 12.Nc2 Bg5 13.h4 Bh6 14.g4 Bf4 15.Qf3 Be6 16.Nce3 Bxe3 17.Nxe3 b4 18.Qe2 bxc3 19.bxc3 Qa5 20.Qd2 Rfd8 21.Bg2 Ne7 22.h5 Rac8 23.Rc1 d5 24.exd5 Bxd5 25.Nxd5 Nxd5 26.Bxd5 Rxd5 27.Qe2 Rxc3 28.O-O Rxc1 29.Rxc1 Rd8 30.Rc6 Qd5 31.Rxa6 Rc8 32.Qe3 Qc4 33.Ra5 Qxg4+ 34.Kf1 Rd8 35.f3 Qg3 36.Ke2 Qg2+ 37.Ke1 Qc2 0-1 | ||||
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| 523330 | Koster, Chiel (2046) | Kools, Thomas (2065) | 1/2-1/2 | |
| 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4 d6 6.Nge2 h5 7.h4 Be6 8.d3 Qd7 9.Be3 Nd4 10.Bxd4 exd4 11.Nb5 c5 12.Nf4 Nf6 13.Nxe6 fxe6 14.Bh3 O-O 15.O-O 1/2-1/2 | ||||
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| 523289 | Van Happen, Niels (1692) | Koster, Chiel (2046) | 0-1 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nab1 Be6 10.a4 b4 11.Nd5 Be7 12.Bxf6 Bxf6 13.Bc4 O-O 14.Qd3 a5 15.O-O Rb8 16.c3 bxc3 17.Nbxc3 Rxb2 18.Nb5 Nb4 19.Nxb4 Bxc4 20.Qxc4 Rxb4 21.Qd5 Be7 22.Rfd1 Qb8 23.Nxd6 Bxd6 24.Qxd6 Rxe4 25.Qd5 Qa8 26.Qxa8 Rxa8 27.Rd5 f6 28.f3 Rd4 29.Rxd4 exd4 30.Rb1 d3 31.Kf2 Re8 32.Rb2 Kf7 33.Rd2 Rd8 34.Ke3 Ke6 35.Rxd3 Rxd3+ 36.Kxd3 Kd5 37.f4 f5 38.h3 h6 39.Kc3 Ke4 40.Kc4 Kxf4 41.Kb5 Kg3 42.Kxa5 Kxg2 43.Kb6 f4 44.a5 f3 45.a6 f2 46.a7 f1=Q 47.a8=Q+ Qf3 0-1 | ||||
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| 863076 | Op den Dries, J (2093) | Koster, Chiel (2052) | 1-0 | |
| 1.e4 c5 2.Nc3 Nc6 3.f4 e6 4.Nf3 d5 5.d3 Nf6 6.Be2 dxe4 7.dxe4 Qxd1+ 8.Bxd1 Be7 9.O-O O-O 10.h3 b6 11.e5 Nd5 12.Nxd5 exd5 13.Re1 h5 14.Nd2 g6 15.c3 Be6 16.Bf3 Rae8 17.Nf1 Rd8 18.Rd1 Na5 19.b3 d4 20.c4 Bd7 21.Ng3 f6 22.Bd5+ Kg7 23.Bd2 fxe5 24.fxe5 Nc6 25.e6 Be8 26.Rf1 Rxf1+ 27.Rxf1 Bh4 28.Ne4 Ne7 29.g3 Nxd5 30.cxd5 Be7 31.d6 Rxd6 32.Nxd6 Bxd6 33.Bf4 Be7 34.Be5+ Kg8 35.Bf6 Bd6 36.e7 Kf7 37.g4 hxg4 38.hxg4 d3 39.Bh4+ Ke6 40.Rd1 Bf4 41.Rxd3 g5 42.Bg3 Bxg3 43.Rxg3 Kxe7 44.Re3+ Kf7 45.Re5 Bd7 46.Rxg5 Kf6 47.Rg8 a5 48.Kf2 b5 49.Ke3 Be6 50.Rb8 b4 51.Rb6 1-0 | ||||
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| 863048 | Koster, Chiel (2052) | Vos, T (2178) | 0-1 | |
| 1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nc3 d5 5.Bb3 Bb4 6.Bd2 O-O 7.Nf3 Re8 8.h3 Na6 9.exd5 cxd5 10.a3 Bxc3 11.bxc3 h6 12.O-O Bf5 13.Re1 Qc7 14.d4 e4 15.Ne5 Nc5 16.Ba2 Ncd7 17.Nxd7 Bxd7 18.Rb1 b5 19.Re3 Kh7 20.Qe2 Rac8 21.Kh1 Re6 22.g4 Ra6 23.g5 hxg5 24.Rg3 e3 25.Rxe3 Rxa3 26.Bb3 Ra6 27.Re5 Ne4 28.Bxg5 Nxg5 29.Rxg5 Rh6 30.Qd3+ g6 31.Rg3 Qd6 32.Qf3 Be6 33.Qf6 a5 34.Re1 a4 35.Ba2 Rc6 36.Re5 b4 37.cxb4 Rxc2 38.Bb1 Rc1+ 39.Rg1 Rxg1+ 40.Kxg1 Qxb4 41.Bc2 Qb7 42.Re3 Qc8 43.Bxa4 g5 44.Qe7 Kg7 45.Be8 g4 46.h4 Rf6 47.Bb5 Qc2 48.Be2 Qf5 49.f3 Qf4 50.Qa3 Qg3+ 51.Kf1 gxf3 52.Bxf3 Bg4 0-1 | ||||
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| 869676 | FM Duijker, R (2198) | Koster, Chiel (2052) | 1-0 | |
| 1.g3 c5 2.Nf3 Nc6 3.Bg2 e5 4.d3 d6 5.O-O Nge7 6.c4 g6 7.Nc3 Bg7 8.Ne1 O-O 9.Nc2 Be6 10.Ne3 Qd7 11.Ned5 f5 12.Bg5 Nc8 13.Bd2 h6 14.e3 Rb8 15.a3 a6 16.b4 b5 17.cxb5 axb5 18.Rb1 c4 19.dxc4 bxc4 20.Qe2 e4 21.Qxc4 Ne5 22.Qc7 Qxc7 23.Nxc7 Bc4 24.Rfc1 Nb6 25.b5 Rbc8 26.Na6 Bd3 27.Ra1 d5 28.Nb4 Nec4 29.Be1 d4 30.exd4 Bxd4 31.Nc6 Bf6 32.a4 Nd6 33.Bf1 Nbc4 34.Ra2 Rfe8 35.Nd5 Kf7 36.Nxf6 Kxf6 37.Bc3+ Kf7 38.Bd4 Bxf1 39.Kxf1 g5 40.Rac2 Ke6 41.Rxc4 Nxc4 42.Rxc4 Kd5 43.Rc5+ 1-0 | ||||
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| 869657 | Koster, Chiel (2052) | Weidemann, Jakob (2114) | 1-0 | |
| 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Ndb5 Bc5 7.Nd6+ Ke7 8.Bf4 e5 9.Nf5+ Kf8 10.Bg5 d6 11.Ne3 Be6 12.Bd3 h6 13.Bxf6 Qxf6 14.O-O g6 15.Ncd5 Qd8 16.Kh1 Kg7 17.c3 Ne7 18.Bc4 a5 19.Qd3 Rf8 20.Rad1 f5 21.f4 Bxd5 22.Nxd5 Nxd5 23.Qxd5 Qe7 24.exf5 Rxf5 25.fxe5 dxe5 26.Rxf5 gxf5 27.g4 fxg4 28.Qe4 h5 29.Qf5 Rf8 30.Qxh5 Rf4 31.Bd3 Qf6 32.Qh7+ Kf8 33.Qxb7 Bb6 34.Bb5 Kg8 35.Qb8+ Kh7 36.Rd7+ Kh6 37.Rd6 Kg5 38.Qg8+ Kh4 39.Qh7+ Kg5 40.Qg8+ Kh4 41.Rxf6 Rxf6 42.Qh8+ Kg5 43.Qg7+ Rg6 44.Qxe5+ Kh6 45.Bd3 1-0 | ||||
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| 869638 | Kurt, Sascha (1986) | Koster, Chiel (2052) | 1/2-1/2 | |
| 1.e4 c5 2.a3 Nc6 3.b4 e5 4.b5 Nd4 5.c3 Ne6 6.Bc4 Nf6 7.d3 d5 8.exd5 Nxd5 9.Nf3 f6 10.Qb3 Ndc7 11.O-O Bd6 12.Re1 O-O 13.Nbd2 Kh8 14.Ne4 Be7 15.Ng3 Nf4 16.d4 cxd4 17.cxd4 Ng6 18.dxe5 Bg4 19.Bb2 Bxf3 20.Qxf3 Nxe5 21.Qe2 Bc5 22.Ne4 Bb6 23.a4 Nd5 24.Bxe5 1/2-1/2 | ||||
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| 869609 | Koster, Chiel (2052) | FM De Boer, Eelke (2270) | 0-1 | |
| 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 a5 6.b5 c5 7.bxc6 bxc6 8.c4 Bd6 9.Nc3 Ne7 10.cxd5 cxd5 11.Nb5 O-O 12.Nxd6 Qxd6 13.Be2 Nbc6 14.d3 a4 15.O-O Rfb8 16.Rb1 d4 17.Nd2 dxe3 18.fxe3 Ba2 19.Ne4 Qe6 20.Qd2 Bxb1 21.Rxb1 Na5 22.d4 exd4 23.Qxd4 Nac6 24.Qd3 Ne5 25.Bxe5 Rxb1+ 26.Qxb1 Qxe5 27.Bc4+ Kh8 28.Qd3 Nf5 29.g4 Re8 30.Bd5 Rd8 0-1 | ||||
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| 869593 | Shakhverdian, William (2129) | Koster, Chiel (2052) | 0-1 | |
| 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 dxc4 5.Bg2 a6 6.O-O Nc6 7.Nc3 Bb4 8.Qc2 O-O 9.Rd1 Qe7 10.a3 Bd6 11.Bg5 h6 12.Bxf6 Qxf6 13.e4 e5 14.Nd5 Qe6 15.dxe5 Nxe5 16.Nd4 Qg4 17.f4 Nc6 18.Qxc4 Nxd4 19.Qxd4 f6 20.Ne3 Qh5 21.Qd5+ Qxd5 22.Nxd5 c6 23.Nc3 Bc5+ 24.Kf1 Bg4 25.Rd3 Rfd8 26.Rxd8+ Rxd8 27.h3 Bh5 28.g4 Bf7 29.Rd1 Rxd1+ 30.Nxd1 g5 31.fxg5 hxg5 32.Ke2 Bc4+ 33.Kd2 Bd4 34.Nc3 Kf7 35.Kc2 Ke7 36.b3 Bf7 37.Ne2 Be5 38.Ng1 Bd6 39.Kb2 Bg6 40.a4 Ke6 41.Nf3 Be5+ 42.Kc1 Kd6 43.Ne1 Kc5 44.Kd2 Kb4 45.Kc2 Ka3 46.Nd3 Bf7 47.Nc5 b6 48.Nxa6 Bxb3+ 49.Kb1 Bc4 0-1 | ||||
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| 869565 | Koster, Chiel (2052) | IM Maatman, Nick (2362) | 0-1 | |
| 1.e4 e6 2.Nf3 d5 3.exd5 exd5 4.d4 Nc6 5.c3 Bd6 6.Bd3 Nge7 7.Qc2 Bg4 8.Nbd2 Qd7 9.O-O f6 10.b4 Bf5 11.Re1 O-O 12.Nf1 Bxd3 13.Qxd3 Qf5 14.Qd1 g5 15.Ne3 Qg6 16.g3 Qh5 17.Kg2 Kh8 18.g4 Qf7 19.Rh1 Rg8 20.Qd3 Raf8 21.b5 Nd8 22.Nf5 Nxf5 23.Qxf5 Qe6 24.Qxe6 Nxe6 25.Re1 Re8 26.a4 Kg7 27.a5 Kf7 28.a6 b6 29.Ng1 h5 30.f3 h4 31.Nh3 Rc8 32.Rb1 c6 33.Bd2 c5 34.Rbc1 cxd4 35.cxd4 Nxd4 36.Nf2 Nxb5 37.Be3 Rge8 38.Nd3 Rxc1 39.Nxc1 Bf4 40.Kf2 Bxh2 41.Ne2 d4 0-1 | ||||
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| 965496 | Koster, Chiel (2010) | CM Sprangers, R (2240) | 1-0 | |
| 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 g6 7.g4 h5 8.g5 Nfd7 9.Be3 Bg7 10.Qd2 O-O 11.O-O-O b5 12.f4 Nc5 13.Bd3 Qa5 14.Kb1 Nxd3 15.Qxd3 Bb7 16.Rhf1 Nd7 17.Nb3 Qc7 18.e5 Nc5 19.Nxc5 dxc5 20.e6 Rfd8 21.exf7+ Kxf7 22.Qe2 e6 23.Bd2 Qc6 24.Rfe1 Rd6 25.Bc1 Rad8 26.f5 gxf5 27.Qxh5+ Kf8 28.Rxd6 Rxd6 29.Ne4 Rd8 30.Nf6 Qf3 31.Qh7 Kf7 32.Nh5 Rg8 33.g6+ Kf8 1-0 | ||||
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| 965509 | CM Bollen, G (2182) | Koster, Chiel (2010) | 1/2-1/2 | |
| 1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 a6 8.Re1 Rb8 9.a4 Na5 10.b3 c6 11.e4 b5 12.axb5 axb5 13.cxb5 cxb5 14.b4 Nc4 15.Qd3 Qb6 16.Bg5 Bb7 17.Rac1 Rfc8 18.Bf1 Ba8 19.h4 Rc7 20.Bh3 h5 21.Rc2 Ra7 22.Bxf6 Bxf6 23.Nxb5 Qxb5 24.Rxc4 Rc7 25.Rc3 Rxc3 26.Qxc3 Qxb4 27.Qxb4 Rxb4 28.d5 Bb7 29.Bd7 Rb3 30.Kg2 Rb2 31.Re3 Kg7 32.Re1 Bc3 33.Re3 Bb4 34.Ng5 Ba6 35.Rf3 f6 36.Ne6+ Kh6 37.Be8 Be2 38.Re3 g5 39.hxg5+ fxg5 40.Nd4 Bg4 41.Rb3 Rxb3 42.Nxb3 Bc3 43.Nc1 Bd1 44.Bb5 Bd2 45.Be2 Ba4 46.Nd3 Bc2 47.Kh3 Bb3 48.Nb2 Be1 49.Kg2 h4 50.Bc4 Bc3 51.Bxb3 Bxb2 52.Kh3 Bd4 53.gxh4 Bxf2 54.hxg5+ Kxg5 55.Kg2 Bd4 56.Kg3 1/2-1/2 | ||||
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| 965458 | Koes, R (1809) | Koster, Chiel (2010) | 0-1 | |
| 1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.b5 Nd4 5.c3 Nxf3+ 6.Qxf3 d5 7.exd5 Nf6 8.c4 Bd6 9.Nc3 O-O 10.Bb2 e4 11.Qd1 Re8 12.Be2 Bf5 13.h3 Nd7 14.Qb3 Ne5 15.O-O-O Bg6 16.h4 h5 17.Rdg1 f5 18.Qd1 f4 19.f3 e3 20.dxe3 fxe3 21.g4 Nxf3 22.Bxf3 e2 23.Nxe2 Rxe2 24.Qxe2 Bf4+ 25.Kd1 Qa5 26.gxh5 Re8 27.Qg2 Qa4+ 0-1 | ||||
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| 965466 | Koster, Chiel (2010) | FM Baselmans, Luuk (2340) | 1-0 | |
| 1.e4 e6 2.Nc3 d5 3.g3 d4 4.Nce2 c5 5.d3 Nc6 6.f4 Bd6 7.Nf3 Nge7 8.Bg2 f6 9.O-O O-O 10.h3 Rb8 11.c3 b5 12.cxd4 cxd4 13.Kh2 Qb6 14.g4 a5 15.g5 fxg5 16.e5 Bc7 17.Nxg5 Nf5 18.Ng3 Nxg3 19.Kxg3 h6 20.Ne4 Bb7 21.Qg4 Ne7 22.Nf6+ Rxf6 23.exf6 Nf5+ 24.Kh2 Bxg2 25.Qxg2 Rf8 26.fxg7 Rf7 27.Bd2 Nxg7 28.Qe4 Qb8 29.Rae1 Rf5 30.Rg1 Kh8 31.Qxd4 e5 32.Qd7 1-0 | ||||
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| 965479 | IM Beerdsen, Thomas (2507) | Koster, Chiel (2010) | 1-0 | |
| 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4 cxd4 7.cxd4 exd4 8.Bf4 d6 9.Nxd4 Ne7 10.Nc3 a6 11.Nxc6 bxc6 12.Bc4 Rb8 13.Bxd6 Rxb2 14.e5 Qa5 15.Bxe7 Kxe7 16.Qd6+ Ke8 17.Qxc6+ Bd7 18.Bxf7+ Kxf7 19.Qxd7+ Kg8 20.Nd5 1-0 | ||||
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| 1342721 | Slagboom, Leandro (1997) | Koster, Chiel (1924) | 0-1 | |
| 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 c6 5.Bg2 Be7 6.O-O O-O 7.Qc2 b6 8.Nbd2 Bb7 9.e4 dxc4 10.Nxc4 h6 11.Rd1 Nbd7 12.Ne3 Rc8 13.b3 Qc7 14.Bb2 Rfd8 15.Rac1 Qb8 16.Ne1 Qa8 17.f4 Nf8 18.Qd2 Rd7 19.e5 Ne8 20.f5 exf5 21.h4 Ne6 22.Nxf5 Bf8 23.Bf3 Rcd8 24.Qg2 g6 25.d5 cxd5 26.Nd4 Bc5 27.Kh2 Nxd4 28.Bxd4 Bxd4 29.Rxd4 Re7 30.Nd3 Nc7 31.Bg4 Nb5 32.Rb4 d4 33.Qf2 Be4 34.Qd2 Nc3 35.Nf2 Qd5 36.Qxh6 Nxa2 37.e6 Nxc1 38.Qxc1 f5 39.Qg5 Qxe6 40.Nxe4 fxg4 41.Nf6+ Kf7 42.Nxg4 Qe2+ 0-1 | ||||
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| 1342745 | Koster, Chiel (1924) | Van Roon, Sjoerd (2264) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e5 7.Nde2 Be7 8.g4 h6 9.Bg2 b5 10.Be3 Bb7 11.O-O O-O 12.Ng3 b4 13.Nd5 Nxd5 14.exd5 Bg5 15.Qd2 Bxe3 16.fxe3 a5 17.Rf2 Nd7 18.Nf5 Nc5 19.a3 b3 20.c3 Ba6 21.e4 Kh7 22.h4 Nd3 23.Rf3 Nf4 24.Rxf4 exf4 25.Qxf4 Qf6 26.Qxd6 Qxd6 27.Nxd6 Rad8 28.Nf5 Rfe8 29.Kf2 Bc8 30.Ne3 g6 31.c4 Kg7 32.c5 Ba6 33.Rd1 Rc8 34.c6 Bb5 35.Rc1 Kf6 36.Rc5 Ba4 37.Nc4 Rb8 38.c7 Rbc8 39.Nd6 Ke5 40.Nxe8 Bxe8 41.Ke3 Bd7 42.Bf3 g5 43.h5 f6 44.Be2 Kd6 45.Kd4 a4 46.Ra5 Kxc7 47.Rc5+ Kd6 48.Rxc8 Bxc8 49.Ke3 Bd7 50.Kf3 Ke5 51.Bd3 Kd4 52.Ba6 Ke5 53.Bb7 Kd6 54.Ba8 Kc5 55.Bb7 Kd6 56.Ba8 Kc5 57.Bb7 Kd6 1/2-1/2 | ||||
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| 1342648 | Koster, Chiel (1924) | Kools, Jasper (1774) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Be3 Qb6 7.c3 Nc6 8.Qb3 Qa7 9.Nxc6 bxc6 10.Bxc5 Qxc5 11.Qa3 Qxa3 12.Nxa3 d5 13.Nc2 Nf6 14.exd5 cxd5 15.O-O O-O 16.c4 dxc4 17.Bxc4 Bb7 18.Ne3 Rfd8 19.Rfd1 Kf8 20.b4 Ke7 21.a4 Nd5 22.Bxd5 Bxd5 23.b5 axb5 24.axb5 Rxa1 25.Rxa1 Rb8 26.Ra7+ 1/2-1/2 | ||||
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| 1342671 | Van der Valk, N (2200) | Koster, Chiel (1924) | 1/2-1/2 | |
| 1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.g3 d6 5.d4 exd4 6.Nxd4 Bd7 7.Bg2 g6 8.b3 Bg7 9.Bb2 O-O 10.O-O Re8 11.e3 h5 12.Nxc6 Bxc6 13.Bxc6 bxc6 14.Qf3 Ne4 15.Nxe4 Bxb2 16.Rab1 Bg7 17.h4 a5 18.Ng5 Qd7 19.c5 d5 20.Kg2 Qe7 21.Rfc1 Bh6 22.Nh3 d4 23.Rf1 dxe3 24.fxe3 f5 25.Qxc6 Qe4+ 26.Qxe4 Rxe4 27.Nf4 Kf7 28.Kf2 Rae8 29.Rfe1 Bf8 30.Rbc1 c6 31.Rc3 a4 32.Rd1 R8e5 33.Rd7+ Ke8 34.Rd4 axb3 35.axb3 Bxc5 36.Rxe4 fxe4 37.Nxg6 Rf5+ 38.Nf4 Kd7 39.Rc4 Re5 40.Ng6 Rf5+ 41.Nf4 Re5 42.Ke2 Bb6 43.b4 Kd6 44.Kd2 Ba7 45.Ne2 Kd5 46.Rc1 Rf5 47.Nf4+ Kd6 48.Ra1 Bb6 49.Ke2 Rb5 50.Ra4 Kc7 51.Nh3 Kd6 52.Nf2 Ke5 53.Nd1 c5 54.bxc5 Rxc5 55.Nf2 Rc2+ 56.Kf1 Kf5 57.Ra3 Bc7 58.Kg2 Re2 59.Rb3 Be5 60.Ra3 Bc7 61.Ra7 Bb6 62.Rf7+ Kg6 63.Kf1 Rxe3 64.Rf4 Rf3 65.Rxf3 exf3 66.g4 hxg4 67.Nxg4 1/2-1/2 | ||||
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| 1342700 | Koster, Chiel (1924) | Van Helvoort, R (2133) | 1-0 | |
| 1.e4 g6 2.Nc3 Bg7 3.h4 h6 4.d4 d6 5.Be3 a6 6.h5 g5 7.Bd3 Nd7 8.Nge2 b5 9.f4 gxf4 10.Nxf4 Ngf6 11.Qf3 e5 12.Nfd5 Nxd5 13.Nxd5 Bb7 14.Qg3 Bf8 15.Rf1 Bxd5 16.exd5 e4 17.Rxf7 exd3 18.Qg6 Qh4+ 19.g3 1-0 | ||||
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| 1342607 | Roebers, Eline (2369) | Koster, Chiel (1924) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 Bg7 11.g3 Ne7 12.Nxe7 Qxe7 13.Bg2 d5 14.Qxd5 Bb7 15.Qb3 f5 16.O-O fxe4 17.Rfe1 f5 18.c4 Qf7 19.Rad1 O-O 20.cxb5 Qxb3 21.axb3 axb5 22.Nxb5 Rab8 23.Nd6 Bc8 24.g4 fxg4 25.Nxc8 Rbxc8 26.Bxe4 Rf4 27.Rd7 h5 28.Bd5+ Kh7 29.Rxe5 Kh6 30.Rd6+ Bf6 31.Re4 Rd8 32.Rxf4 Rxd6 33.Bf7 Bd4 34.Kg2 Kg5 35.Re4 Bxf2 36.Bxh5 Rd2 37.Bxg4 Rxb2 38.Be6 Bb6+ 39.Kf3 Rxh2 40.Bc4 Rf2+ 41.Kg3 Rf6 42.Re5+ Rf5 43.Re7 Rf6 44.b4 Bf2+ 45.Kg2 Bb6 46.b5 Kg4 47.Be2+ Kg5 48.Bd3 Kg4 49.Be2+ Kg5 50.Bf3 Kf4 51.Bc6 Kg5 52.Kh3 Kf4 53.Re4+ Kf5 54.Re2 Kf4 55.Be8 Be3 56.Re1 Kf3 57.Bh5+ Ke4 58.Kg3 Kd3 59.Rb1 Ke4 60.b6 Rxb6 61.Rxb6 Bxb6 1/2-1/2 | ||||
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| 1726723 | Koster, Chiel (1913) | Kulvinder | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.Be3 a6 8.O-O O-O 9.f4 Nbd7 10.Bf3 Rb8 11.Kh1 Qc7 12.a4 e5 13.Nde2 Re8 14.g3 exf4 15.Nxf4 Nb6 16.Bd4 Nbd7 17.Nfd5 Nxd5 18.Nxd5 Qd8 19.Bxg7 Kxg7 20.Qd4+ Nf6 21.Bg2 Re5 22.Nxf6 Be6 23.Nd5 Bxd5 24.exd5 Kg8 25.Rae1 Rxe1 26.Rxe1 Rc8 27.c4 Qa5 28.Re7 Qxa4 29.Bh3 Rxc4 30.Re8+ Qxe8 31.Qxc4 Qe1+ 32.Qf1 Qxf1+ 33.Bxf1 Kf8 34.Kg2 Ke7 35.Kf3 Kf6 36.Ke4 Kg5 37.Be2 f5+ 38.Kd4 Kf6 39.b4 Kg5 40.h4+ Kf6 41.Bd3 Kf7 42.Bf1 Kf6 43.Be2 Kf7 44.b5 axb5 45.Bxb5 Kf6 46.Bc4 Kf7 47.Bd3 Kf6 48.Bb5 Kf7 49.Ke3 Kf6 50.Kd4 Kf7 51.Bd7 b6 52.g4 fxg4 53.Bxg4 Kf6 54.Ke4 h5 55.Bd7 g5 56.hxg5+ Kxg5 57.Bb5 h4 58.Bf1 Kg4 59.Kd4 Kg3 60.Kc4 Kf2 61.Bh3 Kg3 62.Be6 Kf3 63.Bd7 Ke4 64.Bh3 b5+ 65.Kxb5 Kxd5 66.Kb4 Kd4 67.Bg2 1/2-1/2 | ||||
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| 1726784 | Wienegge, Sophie | Koster, Chiel (1913) | 1/2-1/2 | |
| 1.e4 c5 2.d4 cxd4 3.Nf3 Nc6 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6 9.Bd3 Be7 10.Bxf6 Bxf6 11.O-O O-O 12.Nd5 Bxd5 13.exd5 Ne7 14.Bc4 b5 15.Be2 g6 16.c3 Bg7 17.Nc2 f5 18.a4 bxa4 19.Nb4 Qb6 20.Rxa4 a5 21.Nc6 Nxc6 22.dxc6 Qxc6 23.Bc4+ Kh8 24.Bd5 Qb6 25.Bxa8 Rxa8 26.b4 e4 27.bxa5 Rxa5 28.Rxa5 Qxa5 29.Qxd6 h6 30.Qxg6 Qxc3 31.Rd1 Qc8 32.Rb1 Qf8 33.h3 Qc8 34.g3 e3 35.fxe3 Bf8 36.Qf6+ Kg8 37.Qg6+ Kh8 38.Qf6+ Kg8 39.Rf1 Bc5 40.Qg6+ Kh8 41.Qxh6+ Kg8 42.Re1 Qe8 43.Qg5+ Kh8 44.Qxf5 1/2-1/2 | ||||
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| 1726556 | Koster, Chiel (1913) | Salah, Nadezhda (2026) | 1-0 | |
| 1.e4 e6 2.Nc3 d5 3.g3 Nf6 4.e5 Nfd7 5.f4 c5 6.Nf3 Nc6 7.Bg2 f6 8.O-O fxe5 9.Nxe5 Ndxe5 10.fxe5 Nxe5 11.Qh5+ Ng6 12.d3 Be7 13.Bd2 Bf6 14.Nxd5 exd5 15.Rae1+ Kf8 16.Bxd5 Bg4 17.Rxf6+ Qxf6 18.Qxg4 Ne5 19.Qe2 Nf7 20.Bxf7 Kxf7 21.Rf1 Rhf8 22.Rxf6+ Kxf6 23.Bc3+ Kf7 24.Qe5 g6 25.Qf6+ Ke8 26.Qe6+ Kd8 27.Bf6+ Kc7 28.Be5+ Kd8 29.Qd6+ Ke8 30.Bf6 Rf7 31.Qe5+ Kf8 32.Be7+ Kg8 33.Bxc5 Rf5 34.Qe6+ Kg7 35.Qe7+ Rf7 36.Bd4+ Kg8 1-0 | ||||
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| 1726834 | Koster, Chiel (1913) | IM Burri, Quentin (2415) | 0-1 | |
| 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e5 7.Nde2 b5 8.g4 b4 9.Nd5 Nxd5 10.Qxd5 Ra7 11.Be3 Be6 12.Qd2 Rd7 13.Bg2 d5 14.exd5 Bxd5 15.Bxd5 Rxd5 16.Qc1 Nc6 17.c3 Be7 18.O-O h5 19.cxb4 Qd7 20.Rd1 hxg4 21.Rxd5 Qxd5 22.Qd1 Qe6 23.Rc1 gxh3 24.Qa4 h2+ 25.Kg2 Qh3+ 0-1 | ||||
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| 1726606 | Thanga Manickam M (1623) | Koster, Chiel (1913) | 1-0 | |
| 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Bb4 6.Qc2 Nc6 7.e3 Be6 8.h3 h6 9.Bf4 Bd6 10.Bxd6 Qxd6 11.Nf3 O-O 12.Bd3 Nb4 13.Qe2 Nxd3+ 14.Qxd3 c5 15.dxc5 Qxc5 16.O-O Rac8 17.Rfd1 Rfe8 18.Nd4 Bd7 19.Rac1 Qb6 20.b3 Ne4 21.Nxd5 Qa5 22.Rxc8 Bxc8 23.Nb5 Qxa2 24.Ne7+ Rxe7 25.Qd8+ Kh7 26.Qxe7 Qxf2+ 27.Kh1 Qg3 28.Qxe4+ 1-0 | ||||
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| 1726672 | Koster, Chiel (1913) | WIM Nur Abidah, Shanti (1986) | 1-0 | |
| 1.e4 d5 2.Nc3 d4 3.Nce2 c5 4.d3 e5 5.f4 Bd6 6.Nf3 Nc6 7.g3 f5 8.exf5 Bxf5 9.Bg2 Nge7 10.O-O O-O 11.fxe5 Nxe5 12.Nxe5 Bxe5 13.Nf4 Qd7 14.Qe2 Bd6 15.Bd2 Rae8 16.Rae1 Ng6 17.Bd5+ Kh8 18.Nxg6+ Bxg6 19.Rxf8+ Rxf8 20.Qe6 Qc7 21.Rf1 Re8 22.Qg4 Be5 23.Qf3 Bf6 24.Bxb7 Rb8 25.Bd5 Rxb2 26.Bb3 c4 27.Qa8+ 1-0 | ||||
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| 1726210 | GM Albornoz Cabrera, Carlos Daniel (2573) | Koster, Chiel (1913) | 1-0 | |
| 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6 9.Nc4 Rc8 10.Nd5 Bxd5 11.Bxf6 gxf6 12.Qxd5 Nb4 13.Qd2 d5 14.exd5 Qxd5 15.Qxd5 Nxd5 16.O-O-O Rd8 17.Be2 b5 18.Na5 Bh6+ 19.Kb1 O-O 20.Bf3 Nf4 21.Nc6 Rxd1+ 22.Rxd1 Ne6 23.c3 Kh8 24.g3 Rc8 25.Bg2 Bf8 26.b4 Kg7 27.Kb2 Rc7 28.Kb3 Kg8 29.h4 Bg7 30.g4 h5 31.gxh5 f5 32.Bd5 e4 33.Bxe6 fxe6 34.Rd6 Kf7 35.h6 Bxh6 36.Nd8+ Kg8 37.Nxe6 Rf7 38.Nd8 Rh7 39.Kc2 f4 40.Ne6 Re7 41.Kd1 Kf7 42.Nd4 Bg7 43.Nf5 Re5 44.Rd7+ Ke6 45.Rxg7 Rxf5 46.h5 Rxh5 47.Ke2 Kd5 48.Rf7 f3+ 49.Ke3 Rh1 50.Rf5+ Ke6 51.Kxe4 Re1+ 52.Kf4 Re2 53.Kxf3 Rxa2 54.Rc5 Kd6 55.Ke3 a5 56.Rxb5 a4 57.Ra5 a3 58.Kd3 Rxf2 59.Rxa3 Kd5 60.Ra5+ Kc6 61.Kc4 Rf4+ 62.Kb3 Rf1 63.Rh5 Kb6 64.Rh6+ Kc7 65.b5 Rf5 66.Kb4 Rf3 67.c4 Rf4 68.b6+ Kb7 69.Kb5 Rf1 70.Rh7+ Kb8 71.c5 Rf5 72.Ka6 Rxc5 73.Rh8+ Rc8 74.Rxc8+ Kxc8 75.Ka7 1-0 | ||||
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| 1726482 | Gesyan, Suren (1945) | Koster, Chiel (1913) | 1-0 | |
| 1.e4 c5 2.Nc3 Nc6 3.g3 d6 4.Bg2 Bd7 5.d3 Nf6 6.Nge2 Qc8 7.Be3 g6 8.O-O Bg7 9.f3 O-O 10.Qd2 Nd4 11.Nd1 Bh3 12.c3 Bxg2 13.Kxg2 Nxe2 14.Qxe2 e5 15.Qd2 Nh5 16.g4 Nf4+ 17.Bxf4 exf4 18.Qxf4 f5 19.gxf5 gxf5 20.Qxd6 fxe4 21.dxe4 Rf6 22.Qd5+ Kh8 23.Ne3 Rg6+ 24.Kh1 Qh3 25.Qf5 Qh4 26.Ng2 Qh6 27.Qf4 Qh5 28.Qh4 Qe5 29.Rad1 Rg8 30.Rd5 Qe6 31.Nf4 Qa6 32.Nxg6+ Qxg6 33.Rg1 Qf7 34.Rf5 1-0 | ||||
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| 1726306 | Koster, Chiel (1913) | Fuentes Flores, Estrella Azucena | 1-0 | |
| 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3 Bc5 5.O-O d6 6.c3 Na5 7.Bb5+ c6 8.Ba4 b5 9.Bc2 Bb6 10.b4 Nb7 11.a4 Bg4 12.axb5 cxb5 13.Nbd2 O-O 14.Bb2 a5 15.bxa5 Bxa5 16.Nb3 Qc7 17.Nxa5 Rxa5 18.Rxa5 Nxa5 19.Qe2 Nh5 20.h3 Nf4 21.Qe3 Bh5 22.Rc1 Rc8 23.Kh2 Qd7 24.Ng1 f5 25.g3 Ne6 26.exf5 Nc5 27.g4 Bf7 28.Ne2 Nab3 29.Rg1 Ra8 30.Nc1 Nxc1 31.Bxc1 Ra2 32.Bb1 Ra6 33.d4 exd4 34.Qxd4 Ra4 35.Qd1 Ne4 36.Qe1 d5 37.f3 Qd6+ 38.Kh1 Nc5 39.Be3 Nb3 40.g5 Bh5 41.Rg3 Kf8 42.g6 h6 43.Bxh6 gxh6 44.g7+ Kg8 45.f6 Rf4 46.Bh7+ Kxh7 47.g8=Q# 1-0 | ||||
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| 1726376 | Sudhanva K V | Koster, Chiel (1913) | 0-1 | |
| 1.c4 Nf6 2.Nc3 e5 3.Nf3 Nc6 4.g3 d6 5.Bg2 g6 6.O-O Bg7 7.d3 O-O 8.a3 a5 9.Bg5 h6 10.Be3 Ng4 11.h3 Nxe3 12.fxe3 Ne7 13.d4 Nf5 14.Qd3 Nxg3 15.Rf2 f5 16.dxe5 dxe5 17.Nxe5 Bxe5 18.Nd5 c6 19.Nf4 Qxd3 20.Nxd3 Bc7 21.Kh2 Ne4+ 22.Kg1 Nxf2 23.Kxf2 Be6 24.b3 Rfe8 25.Rd1 Rad8 26.e4 fxe4 27.Bxe4 Kg7 28.Kf3 Bxh3 29.Rh1 Rxe4 30.Kxe4 Bg2+ 31.Ke3 Rxd3+ 0-1 | ||||
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| 1726420 | Koster, Chiel (1913) | WIM Arpita, Mukherjee (2206) | 1/2-1/2 | |
| 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 e6 7.g4 Nfd7 8.Bg2 Qc7 9.O-O Be7 10.f4 b5 11.f5 Ne5 12.fxe6 fxe6 13.Bf4 b4 14.Nce2 O-O 15.Qe1 Nbc6 16.Nxc6 Qxc6 17.Qxb4 Ng6 18.Nd4 Qe8 19.Be3 Nh4 20.Bh1 Bd7 21.Rxf8+ Bxf8 22.Rf1 Ng6 23.Qe1 Rb8 24.b3 Ne5 25.Bf4 Be7 26.Qg3 Nf7 27.Bc1 Bf6 28.Bb2 Be5 29.Qf2 Ng5 30.Bg2 h6 31.c4 Qg6 32.Qe3 Nh7 33.Ba1 Nf6 34.Ne2 Bxa1 35.Rxa1 Bc6 36.Nf4 Qe8 37.e5 dxe5 38.Qxe5 Bxg2 39.Nxg2 Nd7 40.Qe4 e5 41.Re1 Qe7 42.Qd5+ Kh8 43.Nf4 Qf6 44.Nh5 Qb6+ 45.Kg2 Rf8 46.Re2 Nf6 47.Qxe5 Qc6+ 48.Kh2 Nxh5 49.gxh5 Qd7 50.Rg2 Rf3 51.Rg3 Rf2+ 52.Rg2 Rf3 53.Rg3 Rf5 54.Qb8+ Kh7 55.Rg2 Rxh5 56.Qg3 Rg5 57.Qc3 Qd6+ 58.Kg1 Qd1+ 59.Kh2 Rxg2+ 60.Kxg2 Qe2+ 61.Kg1 Qxa2 62.Qd3+ Kg8 63.Qd5+ Kh7 64.Qf5+ Kh8 65.Qc8+ Kh7 66.Qf5+ Kg8 67.Qe6+ Kf8 68.Qd6+ Kf7 69.Qd5+ Kf6 70.Qf3+ Ke7 71.Qe4+ Kf8 72.Qf5+ Kg8 73.Qe6+ Kh7 74.Qf5+ 1/2-1/2 | ||||
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| 1726186 | Koster, Chiel (1913) | Murali, Hariprasad | 1-0 | |
| 1.e4 d5 2.Nc3 dxe4 3.Nxe4 Nf6 4.d3 Nxe4 5.dxe4 Qxd1+ 6.Kxd1 e6 7.Be3 a6 8.c3 Nc6 9.Nf3 Bd7 10.Be2 Bd6 11.Kc2 Ne5 12.Nxe5 Bxe5 13.Rad1 O-O-O 14.f4 Bd6 15.e5 Be7 16.Bf3 f6 17.Rd2 Be8 18.Rxd8+ Bxd8 19.Bg4 f5 20.Bf3 h6 21.h4 h5 22.Bc5 b6 23.Ba3 Rh6 24.g3 Rg6 25.Bxh5 Bc6 26.Bxg6 Bxh1 27.Bf8 Bf3 28.Bxg7 Kd7 29.h5 c5 30.h6 1-0 | ||||
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| 1734918 | Bellissimo, Joseph F. (2203) | Koster, Chiel (1913) | 0-1 | |
| 1.e4 c5 2.Nf3 Nc6 3.c3 d5 4.e5 d4 5.Bd3 e6 6.O-O g6 7.Re1 Bg7 8.Qe2 Nge7 9.Na3 O-O 10.Nb5 Nd5 11.Be4 Nf4 12.Qf1 d3 13.g3 Ne2+ 14.Rxe2 dxe2 15.Qxe2 Nxe5 16.Nxe5 Bxe5 17.d3 Bg7 18.Be3 a6 19.Na3 Qc7 20.h4 h5 21.Nc4 Bd7 22.Bf4 e5 23.Bg5 b5 24.Bxa8 Rxa8 25.Nd2 Bc6 26.Re1 f5 27.d4 cxd4 28.cxd4 Re8 29.Rc1 Qd6 30.Qd3 Qd5 31.Qb3 Qxb3 32.Nxb3 Bd5 33.dxe5 Bxe5 34.Nc5 Bd4 35.Nxa6 Re2 36.Be3 Bxe3 37.Rc8+ Kg7 38.fxe3 Rg2+ 39.Kf1 Rxb2 40.Nc7 Be4 41.Ne6+ Kf6 42.Nd4 Rxa2 43.Rf8+ Ke5 44.Re8+ Kd5 45.Rg8 Kc4 46.Rxg6 Kd3 47.Nxb5 Kxe3 48.Ra6 Rxa6 49.Na3 Rxa3 50.Kg1 Ra1+ 51.Kh2 Rh1# 0-1 | ||||
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| 1735447 | Koster, Chiel (1913) | WIM Styazhkina, A (2294) | 1-0 | |
| 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.O-O d6 5.c3 Nf6 6.d4 Bb6 7.dxe5 dxe5 8.Qxd8+ Nxd8 9.Nbd2 O-O 10.a4 a6 11.b4 Nc6 12.Bb3 Bg4 13.h3 Bxf3 14.gxf3 Rad8 15.Nc4 Rfe8 16.Nxb6 cxb6 17.Rd1 b5 18.axb5 axb5 19.Bg5 h6 20.Bxf6 gxf6 21.Rxd8 Rxd8 22.Rd1 Kf8 23.Rxd8+ Nxd8 24.Kg2 b6 25.Bd5 Ke7 26.Kg3 Kf8 27.Kg4 Kg7 28.Kf5 h5 29.h4 Ne6 30.Bxe6 fxe6+ 31.Kxe6 Kg6 32.Kd6 Kf7 33.Kc6 Ke6 34.Kxb6 f5 35.Kxb5 fxe4 36.fxe4 Kd6 37.Kc4 1-0 | ||||
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| 1734726 | Abbott, Thomas | Koster, Chiel (1913) | 0-1 | |
| 1.e4 c5 2.c3 Nc6 3.d4 d5 4.Nd2 e5 5.dxc5 Bxc5 6.Ngf3 dxe4 7.Nxe4 Qxd1+ 8.Kxd1 Be7 9.Bg5 Bxg5 10.Nexg5 Bd7 11.Bc4 Nh6 12.Re1 f6 13.Ne6 Bxe6 14.Bxe6 Ke7 15.Bd5 Rhd8 16.c4 Nb4 17.Nxe5 fxe5 18.Rxe5+ Kf8 19.a3 Nxd5 20.cxd5 Re8 21.f4 Rad8 22.Rg5 Re4 23.g3 Rd4+ 24.Kc2 R4xd5 25.Rf1 Nf7 26.Rxd5 Rxd5 27.Kc3 Nd6 28.g4 Ne4+ 29.Kb3 Nd2+ 0-1 | ||||
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| 1735262 | Koster, Chiel (1913) | Obeid, Omar (1327) | 1-0 | |
| 1.e4 d5 2.Nc3 dxe4 3.Nxe4 Qd5 4.d3 Bf5 5.Ng3 Bg6 6.Be2 Nf6 7.Bf3 Qb5 8.a4 Qa6 9.N1e2 c6 10.Be3 e6 11.Qd2 Nbd7 12.O-O Bd6 13.b4 Nd5 14.b5 cxb5 15.axb5 Qxa1 16.Rxa1 O-O 17.c4 Bb4 18.Qb2 Nxe3 19.fxe3 Be7 20.Nf4 Bf6 21.d4 e5 22.Nd5 exd4 23.Nxf6+ Nxf6 24.exd4 Rfd8 25.c5 Nd5 26.Qb3 Nc7 27.Bxb7 Rab8 28.c6 Nd5 29.Rxa7 1-0 | ||||
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| 1735011 | Koster, Chiel (1913) | IM Jirasek, Ladia (2361) | 0-1 | |
| 1.e4 d5 2.Nc3 d4 3.Nce2 e5 4.d3 f6 5.g3 Bg4 6.Bg2 Nc6 7.f3 Be6 8.f4 Qd7 9.Nf3 O-O-O 10.O-O Bg4 11.fxe5 fxe5 12.Ng5 Nf6 13.h3 Bh5 14.g4 Bg6 15.a3 h5 16.gxh5 Bxh5 17.Qe1 Bxe2 18.Qxe2 Kb8 19.Bd2 Bd6 20.Rf3 Rdf8 21.Raf1 Ne7 22.c4 Ng6 23.b4 Nh4 24.R3f2 Re8 25.c5 Be7 26.Bf3 Nxf3+ 27.Rxf3 Nh5 28.Nf7 Rh7 29.Nxe5 Qe6 30.Ng4 Rhh8 31.Qg2 Bh4 32.Bf4 a6 33.Bh2 Qb3 34.Rf7 Rc8 35.c6 b6 36.Ne5 Bf6 37.Nd7+ Ka7 38.Nxf6 Qxf7 39.Nd5 Qe6 40.Nxc7 Qxc6 41.Rf7 Qc1+ 42.Qf1 Qxf1+ 43.Kxf1 Rhf8 44.Nb5+ Ka8 45.Nc7+ Kb7 46.Rxf8 Rxf8+ 47.Ke2 Nf4+ 48.Bxf4 Rxf4 49.Ne6 Rh4 50.Nxg7 Rxh3 51.Nf5 Rh2+ 52.Kd1 Ra2 53.e5 Rxa3 54.e6 Kc7 55.Kc2 Ra2+ 56.Kb3 Rf2 57.Nxd4 Kd6 58.Kc4 Rf4 59.Kc3 a5 60.bxa5 bxa5 61.Nb3 a4 62.Nc1 Kxe6 63.Ne2 Rh4 64.d4 Rh2 65.Nc1 Kd5 66.Kb4 Rc2 67.Nd3 Kxd4 68.Nf4 Rc4+ 69.Ka3 Ke4 70.Ne6 Kd5 71.Nd8 Rc7 72.Kxa4 Rd7 73.Nb7 Rxb7 0-1 | ||||
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| 1734535 | Jundana, M. Qudwah | Koster, Chiel (1913) | 0-1 | |
| 1.e3 Nf6 2.c3 g6 3.Nf3 Bg7 4.h3 O-O 5.Bd3 d6 6.Ng5 e5 7.Qc2 d5 8.e4 h6 9.Nf3 dxe4 10.Bxe4 Nxe4 11.Qxe4 Nc6 12.Qc2 Bf5 13.d3 Bxd3 14.Qd2 e4 15.Nd4 Nxd4 16.cxd4 Qxd4 17.Nc3 Rad8 18.Ne2 Qc4 19.Qe3 f5 20.a4 g5 21.g3 Qb4+ 22.Nc3 Bxc3+ 23.Bd2 Bxd2+ 24.Qxd2 Qd4 25.Qa5 e3 26.f3 Qxb2 27.Qd2 Qxd2# 0-1 | ||||
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| 1734835 | Koster, Chiel (1913) | Souza, Igor Esquivel | 1-0 | |
| 1.e4 d6 2.Nc3 Nf6 3.g3 g6 4.Bg2 Bg7 5.d3 O-O 6.Nge2 e5 7.O-O a6 8.a4 Nc6 9.Be3 Be6 10.h3 Qd7 11.Kh2 h5 12.f4 Kh7 13.Qd2 Rh8 14.fxe5 Nxe5 15.Bg5 Kg8 16.Bxf6 Bxf6 17.Rxf6 Qe7 18.Raf1 h4 19.Qg5 hxg3+ 20.Nxg3 Qd7 21.Nf5 Bxf5 22.exf5 Kg7 23.fxg6 fxg6 24.Ne4 1-0 | ||||
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| 1734581 | Koster, Chiel (1913) | IM Laurusas, T (2505) | 0-1 | |
| 1.e4 c5 2.Nf3 e6 3.g3 Nc6 4.Bg2 Nf6 5.d3 d5 6.exd5 Nxd5 7.O-O Be7 8.Bd2 O-O 9.Nc3 Nc7 10.Re1 b6 11.Ne5 Nd4 12.Ne2 Bf6 13.Nxd4 cxd4 14.Bb4 Re8 15.Nc6 Qd7 16.Ne5 Bxe5 17.Rxe5 Rb8 18.Qh5 Bb7 19.Bxb7 Rxb7 20.Rae1 Rbb8 21.Bd2 Rbc8 22.c4 dxc3 23.Bxc3 Nd5 24.Bd4 f6 25.R5e2 e5 26.Be3 Nb4 27.Rd1 Nxd3 28.Red2 e4 29.f3 f5 30.fxe4 fxe4 31.Rf1 Rf8 32.Rdd1 Qe6 33.Qh4 Ne5 34.Rxf8+ Rxf8 35.Kg2 Nf3 36.Qh5 Ne5 37.Qh4 Nc4 38.Bg1 e3 39.Qd4 e2 40.Re1 Re8 41.Qd3 h6 42.h4 Nxb2 43.Qd2 Nc4 44.Qd3 Nd6 45.Bd4 Nf5 46.Bb2 Qc6+ 47.Kh2 Qe6 48.Qc3 Qg6 0-1 | ||||
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| 1735350 | FM Antonov, Andrey P. (2137) | Koster, Chiel (1913) | 0-1 | |
| 1.e4 c5 2.c4 Nc6 3.Nc3 e6 4.g3 d6 5.Bg2 Be7 6.Nge2 Nf6 7.O-O O-O 8.d3 a6 9.Rb1 Qc7 10.h3 b6 11.Be3 Bb7 12.f4 Rad8 13.Kh2 Rfe8 14.a3 Bf8 15.Bg1 Ne7 16.d4 d5 17.exd5 exd5 18.Qc2 dxc4 19.dxc5 Bxg2 20.Kxg2 b5 21.b3 cxb3 22.Qxb3 Ned5 23.Rb2 Ne3+ 24.Bxe3 Rxe3 25.Qc2 Qc6+ 26.Kh2 Bxc5 27.Rd1 Rxd1 28.Qxd1 h6 29.Qd8+ Kh7 30.Nd1 Re8 31.Qd3+ Kg8 32.Rc2 Qb6 33.g4 Bd6 34.Qf3 Bb8 35.Rc6 Rxe2+ 36.Qxe2 Qxc6 0-1 | ||||
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| 1735132 | FM Amaro Alfonso, Raynner (2186) | Koster, Chiel (1913) | 1-0 | |
| 1.e4 c5 2.Ne2 Nc6 3.g3 d6 4.Bg2 g6 5.O-O Bd7 6.c3 Qc8 7.d4 cxd4 8.cxd4 Bg7 9.Nbc3 Nf6 10.Be3 Bh3 11.Rc1 Bxg2 12.Kxg2 O-O 13.d5 Ne5 14.Bd4 Nfd7 15.f4 Ng4 16.h3 Nh6 17.Nb5 Qd8 18.Bxg7 Kxg7 19.Qd4+ f6 20.Qd2 Nc5 21.b4 a6 22.Nbd4 Nxe4 23.Qe3 Qd7 24.Qxe4 Rfc8 25.Qe6 Qd8 26.Nb3 Nf5 27.Ned4 Nxd4 28.Nxd4 Rc7 29.Rxc7 Qxc7 30.Qe3 Kf7 31.Rc1 Qb6 32.Qe6+ Kf8 33.Rc4 Re8 34.Qd7 a5 35.b5 Kf7 36.Qc7 Qa7 37.b6 Qa6 38.a4 Rd8 39.Nb5 Qa8 40.Re4 Re8 41.Nxd6+ Kf8 42.Nxb7 Qc8 43.Qxc8 Rxc8 44.d6 exd6 45.Nxd6 Rc6 46.b7 Rxd6 47.b8=Q+ Kg7 48.Qxd6 f5 49.Re7+ Kh6 50.Qd7 g5 51.Rxh7+ Kg6 52.Qf7# 1-0 | ||||
