White Elo Black Elo ECO Year Res. #       Gregorz, Ralph 2135 Krupka, David 2300 D34 1997 ½-½ 26 Wu, Aaron 1995 Krupka, David 2221 B45 2009 ½-½ 38 Paterson, Jim 1826 Krupka, David 2092 A03 2009 ½-½ 26 Ward, Dean 1766 Krupka, David 2092 D35 2009 ½-½ 49 Stewart, Frankie 1766 Krupka, David 2015 E97 2010 ½-½ 39 Lamb, Bryan 2180 Krupka, David 1949 A18 2010 ½-½ 34 Guo, Josh 2204 Krupka, David 1949 B15 2010 ½-½ 39 Sharpe, Sam 1988 Krupka, David 1986 D08 2010 ½-½ 21 Pedersen, Rune Linnebo 2342 Krupka, David 1986 A12 2010 ½-½ 39 Sherman, Joshua 1885 Krupka, David 2035 B15 2011 ½-½ 34 Huston, Scott 1782 Krupka, David 2035 D08 2011 ½-½ 37 Hall, John2 2200 Krupka, David 2019 C45 2011 ½-½ 40 Day, Lawrence A 2262 Krupka, David 2019 C68 2011 ½-½ 57 Ugodnikov, Arkadiy 1820 Krupka, David 2028 C82 2012 ½-½ 39 Page 1
Gregorz, Ralph (2135) - Krupka, David (2300) - Toronto op (7), Toronto, 1997 D34 1.c4 Nf6 2.Nf3 c5 3.Nc3 Nc6 4.g3 e6 5.Bg2 d5 6.cxd5 exd5 7.d4 Be7 8.O-O O-O 9.Bg5 cxd4 10.Nxd4 Be6 11.Rc1 Qa5 12.Nxc6 bxc6 13.Qa4 Qb6 14.Qc2 Rac8 15.Na4 Qb5 16.b3 Rfe8 17.Nc5 Bg4 18.e3 h6 19.Bxf6 Bxf6 20.Rfe1 Bh5 21.Qd2 Bg6 22.Bf1 Qb6 23.Nd7 Qd8 24.Nxf6+ Qxf6 25.Qc3 Qxc3 26.Rxc3 ½-½	Search games Games: 10658164 / Last update: 23 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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