White Elo Black Elo ECO Year Res. #       Derwent, Ethan 943 Gu, Sean 1542 A40 2009 1-0 61 Derwent, Ethan 943 Cameron, Lachlan 759 A40 2009 1-0 28 Derwent, Ethan Ren, Jonathan A40 2009 ½-½ 55 Derwent, Ethan 1330 Brown, Oscar A40 2010 1-0 45 Page 1
Derwent, Ethan (943) - Gu, Sean (1542) - AUS-ch U12 (2), Adelaide, 2009 A40 1.d4 Nc6 2.c4 e5 3.d5 Bb4+ 4.Bd2 Bxd2+ 5.Nxd2 Nce7 6.e4 d6 7.Ngf3 f5 8.Be2 Nf6 9.Qc2 O-O 10.O-O Bd7 11.c5 Rc8 12.Qb3 fxe4 13.Ng5 Kh8 14.Ndxe4 Nexd5 15.cxd6 h6 16.Nxf6 Qxf6 17.Qxd5 Qxg5 18.Qxb7 Rb8 19.Qd5 c6 20.Qd3 Rxb2 21.Rfb1 Rxb1+ 22.Rxb1 Bf5 23.Qf3 Qd8 24.Rc1 Qxd6 25.Rxc6 Qe7 26.Qc3 Qb7 27.h3 Be4 28.Rc7 Qb1+ 29.Bf1 Qxa2 30.Qxe5 Qxf2+ 31.Kh2 Qf4+ 32.Qxf4 Rxf4 33.Kg1 a5 34.Ra7 Rf5 35.Bc4 Rc5 36.Bf7 Rc1+ 37.Kf2 Rc2+ 38.Ke3 Bxg2 39.Bg6 Bxh3 40.Bxc2 g5 41.Rxa5 Kg7 42.Ra7+ Kf6 43.Ra6+ Kg7 44.Rg6+ Kf7 45.Rxh6 g4 46.Kf4 Kg7 47.Rb6 Kf7 48.Bf5 Bg2 49.Bxg4 Ke7 50.Ke5 Kf7 51.Ra6 Kg7 52.Kf5 Bd5 53.Kg5 Kf7 54.Ra7+ Ke8 55.Kf6 Kf8 56.Rd7 Bc6 57.Rd8+ Be8 58.Bh5 Kg8 59.Rxe8+ Kh7 60.Bg6+ Kh6 61.Rh8# 1-0	Search games Games: 10675260 / Last update: 06 Aug 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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