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r3rbk1/ppq2ppp/2b1pB2/8/6Q1/1P1B3P/P1P2PP1/R2R2K1 w - - 0 1 Nolot's analysis as reported by Baudot: Goufeld - Osnos, Koutaissi 1978 After the obvious 24.Bxh7+!! you stil have to find the right attacking moves as black has some serious defensive resources. 24...Kxh7 25.Qh5+ Kg8 26.Rd4! gxf6 27.Rg4+ Bg7 28.Qh6 Kf8 29.Rxg7! Rac8 (computers prefer 29...Be4 which also loses after 30.Rg4+ Ke7 31.Rxe4 Rad8 32.c4 Qa5 33.Rae1+-) 30.Qh7 b5 31.Rd1 Bd5 32.c4 bxc4 33bxc4 1-0. It should take the best micros a few months to find 24.Bxh7+!! As Deep Thought found out, 26 ... gxf6 seems to be a mistake. More on that later, but this one is dubious now! Comments by Feng-Hsiung Hsu: The move played was 1. Bh7, but as it turns out 1. Bh7 might not be the best move. Osnos defended poorly and got slaughtered. With best black defence, white only maintains a positional edge after 1. Bh7 Kh7 2. Qh5 Kg8 3. Rd4 Bf3! (with the idea of Qxc2, and then Q to king side to defend the king). DT-2 prefers to play c4, which threatens Bh7 for real. My own experience: I ran this one on a
quad 450 mhz Xeon. I get +0.4 after 2 hours, and +1 after about a day.
I'm not sure the answer is correct -- it's possible that my program was being
speculative. |
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