White Elo Black Elo ECO Year Res. #       Collyer, Curt D 2178 Koons, Nathaniel 2280 D27 2007 0-1 40 Bui, Vinh 2483 Koons, Nathaniel 2289 D27 2007 1-0 40 Sinanan, Joshua C 2183 Koons, Nathaniel 2293 D27 2008 0-1 48 Page 1
Collyer, Curt D (2178) - Koons, Nathaniel (2280) - Washington State-ch (5), Seattle, 2007 D27 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6 6.a4 c5 7.O-O Nc6 8.Qe2 cxd4 9.Rd1 Be7 10.Nxd4 Nxd4 11.Rxd4 Qc7 12.Nc3 Bd7 13.b3 Bd6 14.h3 Bh2+ 15.Kh1 Be5 16.Rd3 O-O 17.Bb2 b5 18.axb5 axb5 19.Rxa8 Rxa8 20.Nxb5 Bxb5 21.Bxb5 Ne4 22.Bc6 Qxc6 23.Bxe5 Qc5 24.Bd4 Qf5 25.Kg1 Nxf2 26.Rd2 Ne4 27.Rd1 Rd8 28.Rc1 h5 29.Qb2 e5 30.Bc3 Rd3 31.b4 Qg5 32.b5 Qxe3+ 33.Kh1 Nf2+ 34.Kh2 Qg3+ 35.Kg1 Nxh3+ 36.Kh1 Nf2+ 37.Kg1 Ng4 38.Bxe5 Qxe5 39.Rc8+ Kh7 40.Qb1 Qd4+ 0-1	Search games Games: 10666599 / Last update: 30 Jul 2025 GamePositionEndgames White Black Ignore colours ECO Year Result All 1-0 0-1 ½-½ Event Site Click below to set up a position to search for Set position Click the button below to select an endgame type
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