Author: John Merlino
Date: 15:58:17 04/30/04
Go up one level in this thread
On April 30, 2004 at 17:21:34, José Antônio Fabiano Mendes wrote: > [D]7k/6p1/2P3Qp/p3q2P/8/6P1/5K2/8 w > Bogoljubow vs Stahlberg, Kemeri 1933 1. Qc2!! Qxh5 2. Qc4! CM_SKR on an AMD 2500+ finds 1.Qc2 in two seconds and needs another two seconds to see 2.Qc4: Time Depth Score Positions Moves 0:00 1/3 1.13 1984 1.Qc2 Qxh5 2.Qe4 Qc5+ 3.Ke2 0:00 1/3 1.22 2615 1.Kg2 a4 2.Qf7 0:00 1/4 0.42 4244 1.Kg2 a4 2.Qf7 Qb2+ 3.Kh3 a3 4.Qe8+ Kh7 0:00 1/4 1.13 5510 1.Qc2 Qxh5 2.Qe4 Qc5+ 3.Ke2 0:00 1/5 1.20 12587 1.Qc2 Qxh5 2.Qe4 Qc5+ 3.Kg2 Qc3 4.Qe8+ Kh7 0:00 1/6 1.00 31580 1.Qc2 Qxh5 2.Qe4 Qf7+ 3.Qf4 Qa2+ 4.Kf3 Qb3+ 5.Qe3 0:00 1/7 0.86 85276 1.Qc2 Qxh5 2.Qe4 Qf7+ 3.Qf4 Qa2+ 4.Ke3 Qe6+ 5.Qe4 Qc8 0:00 1/7 0.92 102342 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qe5 4.c7 Qxg3+ 5.Kf1 Qh3+ 6.Ke1 Qc8 0:00 1/8 0.88 187606 1.Kg2 a4 2.Qc2 Qd5+ 3.Kf2 Qf7+ 4.Ke1 Qc7 5.Qxa4 Qxg3+ 6.Ke2 Qe5+ 7.Kf3 Qxh5+ 8.Qg4 0:01 1/9 0.49 404604 1.Kg2 a4 2.Qc2 Qd5+ 3.Kg1 Qe5 4.Kf2 Qd4+ 5.Kf1 Qf6+ 6.Ke2 Qe5+ 7.Kd2 Qg5+ 8.Kc3 Qxg3+ 9.Qd3 0:02 1/9 0.83 581436 1.Qc2 Qxh5 2.Qe4 Qf7+ 3.Kg2 Qa2+ 4.Kf1 Qd2 5.Qa4 Qd6 6.Kg2 Qc7 0:04 1/10 0.64 1144930 1.Qc2 Qxh5 2.Qc4 Qf5+ 3.Kg2 Qc8 4.Qc2 Qc7 5.Qa4 Kg8 6.Qa2+ Kf8 0:10 2/11 0.84 2779295 1.Qc2 Qxh5 2.Qc4 Qh2+ 3.Kf3 Qh3 4.c7 Qc8 5.Qf4 a4 6.Qd6 Kh7 7.Qd8 0:21 3/12 0.86 5946125 1.Qc2 Qxh5 2.Qc4 Qh2+ 3.Kf3 Qh5+ 4.Kg2 Qf5 5.c7 Qc8 6.Qf7 a4 7.Qe7 Kh7 8.Qd8 0:57 4/13 1.04 16225501 1.Qc2 Qxh5 2.Qc4 Qh2+ 3.Kf3 Qh5+ 4.Kg2 Qe8 5.c7 Qa8+ 6.Kf2 Qc8 7.Qf4 a4 8.Qd6 Kh7 9.Qd8 > [D]8/8/p7/2Q5/1P6/1P3qp1/3k4/6K1 b > Grigoriev 1930 1...Kd1! > The immediate transposition into a pawn ending leads only to a draw. CM_SKR sees Kd1 immediately, but then gives it up for Qg4 after four seconds. It ends up taking 45 seconds to truly see that Kd1 wins: Time Depth Score Positions Moves 0:00 1/3 -2.05 4211 1...Qxb3 2.Kg2 Qd3 3.Qg5+ Kc3 4.Qxg3 Qxg3+ 5.Kxg3 Kxb4 0:00 1/3 -2.45 9056 1...Kd1 2.Qd4+ Kc2 3.Qc4+ Kb2 0:00 1/4 -2.56 12897 1...Kd1 2.Qd4+ Kc2 3.b5 axb5 0:00 1/5 -2.66 31090 1...Kd1 2.Qd4+ Kc2 3.Qc4+ Kb2 4.Qd4+ Kxb3 5.Qd2 Ka3 0:00 1/6 -2.67 54902 1...Kd1 2.b5 axb5 3.b4 Kd2 4.Qc2+ Ke1 0:00 1/7 -2.55 91643 1...Kd1 2.b5 axb5 3.b4 Kd2 4.Qd4+ Kc2 5.Qd2+ Kb3 0:00 1/8 -2.08 170990 1...Kd1 2.b5 axb5 3.b4 Qd3 4.Kg2 Kd2 5.Qg5+ Kc3 6.Qxg3 Qxg3+ 7.Kxg3 Kxb4 0:01 1/9 -1.35 548783 1...Kd1 2.b5 axb5 3.b4 Qe2 4.Qd6+ Kc2 5.Qxg3 Qd1+ 6.Kg2 Qd2+ 7.Kg1 Qd4+ 8.Kg2 Qxb4 9.Qg6+ Kc1 0:04 1/9 -1.73 1266555 1...Qg4 2.Qd6+ Kc3 3.b5 axb5 4.Qc5+ Kb2 5.Qe5+ Ka2 6.Qxb5 Qd4+ 7.Kh1 Qf2 0:12 1/10 -1.92 3562741 1...Qg4 2.Qd6+ Kc3 3.b5 axb5 4.Qc5+ Kb2 5.Qe5+ Ka2 6.Qxb5 Qd4+ 7.Kh1 Qe4+ 8.Kg1 Qe3+ 9.Kg2 Qf2+ 10.Kh3 g2 0:14 1/10 -2.05 4264746 1...Qe2 2.Qd4+ Qd3 3.Qb2+ Kd1 4.Qf6 Kc2 5.Qf4 Kxb3 6.Kg2 Kc3 7.Kh3 Qg6 8.Qxg3+ Qxg3+ 9.Kxg3 Kxb4 0:20 2/11 -2.17 6150078 1...Qe2 2.Qd4+ Qd3 3.Qf6 Kc2 4.Qf4 Kxb3 5.Kg2 Qg6 6.Qb8 Kc4 7.Qb7 Kd4 8.Qc7 0:32 3/12 -2.17 9652113 1...Qe2 2.Qd4+ Qd3 3.Qf6 Kc2 4.Qf4 Kxb3 5.Kg2 Qg6 6.Qb8 Kc4 7.Qb7 Kd4 8.Qc7 0:45 3/12 -4.74 13683607 1...Kd1 2.Qd4+ Kc2 3.Qc4+ Kb2 4.Qd4+ Kxb3 5.Qd2 g2 6.Kh2 Qf1 7.Qe3+ Ka4 8.Qe8+ Kxb4 9.Qe4+ Kb3 10.Qe3+ Kc2 11.Qe4+ Kc3 12.Qe3+ Kc4 13.Qe4+ Kc5 14.Qe5+ Kc6 15.Qe6+ Kb7 0:53 4/13 -4.43 16374673 1...Kd1 2.Qd4+ Kc2 3.Qc4+ Kb2 4.Qd4+ Kxb3 5.Qd2 g2 6.Kh2 Qf1 7.Qe3+ Ka4 8.Qe8+ Kxb4 9.Qe4+ Kb3 10.Qe3+ Kc2 11.Qe4+ Kc3 12.Qe3+ Kc4 13.Qe4+ Kb5 14.Qe5+ Ka4 15.Qd4+ Ka3 16.Qd6+ Ka2 1:43 5/14 -7.62 32814838 1...Kd1 2.b5 axb5 3.b4 Qf2+ 4.Qxf2 gxf2+ 5.Kxf2 Kd2 6.Kf3 Kc3 7.Ke2 Kxb4 8.Kd2 Kb3 9.Kc1 Kc3 10.Kb1 b4 jm
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