Author: Tom Brake
Date: 21:07:40 10/21/04
On Chessgames.com, the Wednesday puzzle sprang from the following game (Taylor vs NN, iirc) 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Nc3 g4 5.Ne5 Qh4+ 6.g3 fxg3 7.Qxg4 g2+ 8.Qxh4 gxh1=Q 9.Nd5 Na6 10.d4 Be7?? 11. Qxe7+!! and mate in 3 Mentioned in the kibitzing is that the best line for black is 10. ... d6 11. Nxf7 c6! [D] r1b1kbnr/pp3N1p/n1pp4/3N4/3PP2Q/8/PPP4P/R1B1KB1q w Qkq - 0 12 leading to a -+ after 12. Nxh8 cxd5. This much is true, 12. Nxh8 does appear to lose, rather badly. Unmentioned though is 12. Kf2, after which white appears to have the better chances. CM10K on an Athlon64 3000+ takes 30 seconds to switch from Nxh8. Time Depth Score Positions Moves ---- ---- ---- ---- ---- 0:00 1/3 -0.39 1456 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 0:00 1/4 -0.39 5557 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 0:00 1/5 -0.08 20807 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Nf7+ Kc7 15.Qxd5 0:00 1/6 -0.46 75032 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 Nf6 15.Nf7+ Ke7 0:00 1/7 0.04 168996 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 Bh3 15.Nf7+ Ke8 16.Nxd6+ Bxd6 17.Qxg8+ Bf8 0:01 2/8 -0.30 402904 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 Bh3 15.Bg5+ Kc8 16.O-O-O Bxf1 17.Qxg8 0:04 2/9 -0.27 1375974 12.Nxh8 cxd5 13.Qh5+ Kd8 14.Qxd5 Bh3 15.Bg5+ Ne7 16.Nf7+ Kd7 17.Qb5+ Nc6 18.Qxb7+ Nc7 0:15 2/10 -0.99 5118237 12.Nxh8 cxd5 13.Qh5+ Kd7 14.Qf5+ Kc7 15.Qxf8 Qxe4+ 16.Be2 Nb4 17.c3 Nc2+ 18.Kf2 Nxa1 19.Qxg8 0:30 2/10 -0.65 10107425 12.Kf2 cxd5 13.Bb5+ Bd7 14.Qh3 Nf6 15.Bxd7+ Nxd7 16.Nxd6+ Bxd6 17.Qh5+ Kd8 18.Bg5+ Kc7 19.Rxh1 dxe4 1:03 3/11 -0.45 21102025 12.Kf2 cxd5 13.Bb5+ Bd7 14.Qh3 Nf6 15.Bxd7+ Nxd7 16.Nxd6+ Bxd6 17.Qh5+ Kd8 18.Bg5+ Kc7 19.Rxh1 Raf8+ 20.Ke3 Rhg8 21.exd5
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