Author: Mikael Bäckman
Date: 11:47:41 01/16/04
What say your engines? How long to avoid Nxc7?? [D]r1b1k1nr/pppp1ppp/2n5/1Nb5/4P2q/8/PPP2PPP/RNBQKB1R w KQkq - 0 6 am Nxc7 Chepla v0.28 on AMD 1292 Mhz -1.61 7 0.0 Nb5a3 1/4 -1.41 13 0.0 Nb5c3 1/2 4.45 39 0.0 Nxc7+ Kd8 1/4 4.45 138 0.0 Nxc7+ Kd8 Nxa8 2/5 3.87 711 0.0 Nxc7+ Kd8 Ke2 3/8 3.89 1k 0.0 Qd4 3/3 3.89 1k 0.0 Qd4? 3/2 -5.21 1k 0.0 Qd4 3/8 1.31 2k 0.0 Nxc7+ Kf8 Be3 Bxe3 3/11 1.38 5k 0.0 Nxc7+ Kf8 Qe2 Nd4 4/10 1.37 17k 0.1 Nxc7+ Kf8 Qe2 Rb8 Be3 d6 5/14 1.18 93k 0.2 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Qf6 Qd2 6/15 1.17 244k 0.5 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Qf4 f3 Qe3+ 7/16 0.84 527k 1.1 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Qf6 Kd2 Qxb2 e5 8/18 0.84 988k 2.1 Nxc7+? Kd8 Bg5+ Qxg5 Nxa8 Qf6 Kd2 Qxb2 e5 8/7 0.83 1098k 2.3 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Qf6 Qd2 Qxf2+ Qxf2 h5 8/18 0.69 1757k 3.4 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Nf6 h4 Qf4 f3 Qe3+ Be2 9/21 0.58 4827k 9.4 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Nf6 Nd2 Ng4 Qf3 Nxf2 h4 10/23 0.25 12061k 23.7 Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Nf6 Nd2 Ng4 Bc4 Nxf2 Nf3 Qxg2 11/28 0.30 35606k 78.7 Qf3 Kd8 Qf4 Qxf4 Bxf4 d6 Bc4 Nb4 Nb1a3 Be6 O-O 11/26 Some engines have problems with this successor position after Nxc7+ Kd8 Bg5+ Qxg5 Nxa8 Nf6 f3. [D]N1bk3r/pp1p1ppp/2n2n2/2b3q1/4P3/5P2/PPP3PP/RN1QKB1R b KQ - 0 9 bm Nxe4 Chepla v0.28 on AMD 1292 Mhz 1.65 1 0.0 Nb4 1/1 1.63 5 0.0 Ne5 1/1 1.51 29 0.0 Bd4 1/1 1.44 41 0.0 Re8 1/1 1.70 120 0.0 Re8 Nc3 2/5 1.69 243 0.0 b5 Nc3 2/5 0.61 461 0.0 Qe3+! Be2 Qf2+ Kd2 2/8 0.61 868 0.0 Qe3+ Be2 Qf2+ Kd2 Qxg2 3/9 0.61 4k 0.0 Qe3+ Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 4/12 0.00 9k 0.0 Qe3+! Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 5/7 0.00 23k 0.0 Qe3+ Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 6/15 0.00 96k 0.1 Qe3+ Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 7/17 0.00 295k 0.5 Qe3+ Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 8/20 0.00 940k 1.4 Qe3+ Be2 Qf2+ Kd2 Qe3+ Ke1 Qf2+ Kd2 9/22 -0.15 3411k 5.6 Qe3+ Be2 b6 Rf1 Bb7 Nxb6 Bxb6 g3 Qc5 Nc3 Ke8 10/26 -0.33 5749k 9.3 Nxe4! fxe4 Qh4+ Kd2 Qf4+ Kc3 Qe5+ Kd2 Qxb2 Nc3 Bd4 Qe1 Bxc3+ Ke3 10/26 -0.32 7632k 12.5 Nxe4 fxe4 Qh4+ Kd2 Qf4+ Kc3 Qe5+ Kd2 Qxb2 Na3 Bd4 Bd3 Qb4+ Ke2 Bxa1 11/24 -0.65 25612k 42.7 Nxe4! fxe4 Qh4+ Kd2 Qf4+ Kc3 Qe5+ Kd2 Qxb2 Na3 Bd4 Bc4 Qxa3 Nb6 12/26 -0.88 43551k 71.1 Nxe4 fxe4 Qh4+ Kd2 Qf4+ Kc3 Qe5+ Kd2 Qxb2 Na3 Bd4 Bd3 Qxa3 Rb1 Bc3+ Ke2 Qxa2 13/31
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