Abu Dhabi Computer Challenge

(1) Hydra - Shredder [B92] Abu Dhabi Computer Challenge Abu Dhabi (7), 23.08.2004 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.0-0 0-0 9.Kh1 b6 10.Be3 Bb7 11.f3 b5 12.Qd2 Nbd7 This was the last book move for both programs 13.a3 Qc7 14.Rfd1 Rad8 15.Qe1 Nc5 16.Nxc5 dxc5 17.b3 Bc6 18.a4 b4 19.Na2 a5 20.c3 Nh5 21.Rac1 Bxa4? This move came as a surprise to everybody – the spectators in Abu Dhabi, those on the Playchess.com server, Chrilly Donninger and Hydra. 22.bxa4 b3 23.Bc4 bxa2 24.Qe2 h6 25.Qxa2 Bg5 26.Bxg5 hxg5 27.h3 Qe7 28.Kg1 Nf4 29.Kh2 Nh5 30.Rb1 Nf6 31.Qb3 Nh5 32.Qb6 Rxd1 33.Rxd1 g4 34.fxg4 Qf6 35.Qxf6 Nxf6 36.g5 Nxe4 37.g6 Nxc3 38.Rc1 Nxa4 39.Rf1 Nc3 40.Bxf7+ Rxf7 41.Rxf7 a4 42.Rc7 Kf8 43.Rxc5 Nd1 44.Rxe5 a3 45.Rf5+ Ke8 46.Ra5 Nb2 47.Rxa3 1-0

(2) Shredder - Hydra [B49] Abu Dhabi Computer Challenge Abu Dhabi (8), 24.08.2004 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.0-0 Nf6 8.Be3 Bb4 9.Na4 0-0 10.c4 Bd6 11.g3 Nxe4 12.Bf3 f5 13.c5 Be5 14.Nxc6 dxc6 15.Nb6 Rb8 16.Qc2 Nf6 17.Nc4 f4 18.Bd2 Bd4 19.Bxf4 e5 20.Be3 Be6 21.Bxd4 exd4 22.Qe2 Bf5 23.Rfe1 d3 24.Qd2 Qd8 25.Qc3 Nd7 26.b4 Qf6 27.Qxf6 Nxf6 28.a3 Rfd8 29.Nd6 Bg6 30.Re7 b6 31.Bxc6 bxc5 32.bxc5 Rb3 33.Ree1 d2 34.Re3 Bc2 35.Bf3 Rxe3 36.fxe3 g5 37.Bd1 Bd3 38.h3 Ne4 39.Nxe4 Bxe4 40.Kf2 Kg7 41.Ke2 h5 42.g4 h4 43.Ra2 Bd3+ 44.Kf2 Rf8+ 45.Kg2 Be4+ 46.Kg1 Rd8 47.Rb2 Kf6 48.Rb6+ Ke5 49.c6 Rc8 50.Rxa6 Bd3 51.Rb6 Ke4 52.Rb7 Rxc6 53.Re7+ Kd5 54.Bb3+ Kd6 55.Re6+ Kc5 56.Rxc6+ Kxc6 57.Kf2 Kc5 58.Kf3 Bf1 59.Kf2 Bb5 60.a4 Bd3 61.Bd1 Kc4 62.e4 Kd4 63.e5 Kxe5 64.Ke3 Bf1 65.Kxd2 Bxh3 66.Bf3 Bf1 67.Ke3 Bc4 68.a5 Ba6 69.Bg2 Bb5 70.Bb7 Kd6 71.Bg2 Kc5 72.Bh3 1/2-1/2