Author: Uri Blass
Date: 07:13:42 12/14/01
Go up one level in this thread
Here is the original yace version analysis from the root with no learning(the previous analysis was of yace only material(pawn=0.8 queen 10.01 rook=5 bishop=3.5) evaluation and with learning Yace failed high on depth 14 and also at depth 15. Yace still consider Rd8 at depth 15 and I suspect that it may be happy with Rd8 Rxd8 if I wait enough time. finding the right moves is easy for programs and they can see that Rxd8 gives at least a draw when fxe3 lead to a small advantage for black New position [D]5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1 Analysis by Yace 0.99.56: 1.fxe3 axb5 ³ (-0.49) Depth: 1 00:00:05 1.fxe3 axb5 ³ (-0.49) Depth: 2 00:00:05 1.fxe3 axb5 2.Rd7 Ra8 ³ (-0.33) Depth: 3 00:00:05 1.fxe3 axb5 2.Rd7 Qxa2 3.Qxb5 ³ (-0.31) Depth: 4 00:00:05 1.fxe3 axb5 2.e4 Ra8 3.Rd7 Qxa2 ³ (-0.33) Depth: 5 00:00:05 14kN 1.fxe3 axb5 2.e4 Qb4 3.Rd1 Qb2 4.e3 Qxa2 ³ (-0.33) Depth: 6 00:00:05 60kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 g6 4.Rxf8+ Kg7 ³ (-0.32) Depth: 6 00:00:05 60kN 1.Rd8 Qxb5 2.Qd6 Re8 3.Rxe8+ Qxe8 4.fxe3 = (-0.25) Depth: 6 00:00:05 60kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.Rxe8+ Qxe8 5.Qxa6 Qd7 = (-0.08) Depth: 7 00:00:05 192kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.Rxe8+ Qxe8 5.Qxa6 Qd8 6.a4 Qd2 = (0.00) Depth: 8 00:00:06 493kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Kg3 Qe1+ 11.Kf3 = (0.00) Depth: 9 00:00:07 1020kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd2 Qh6+ 12.e3 g5 = (0.04) Depth: 10 00:00:10 2471kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd2 Qh6+ 12.e3 g5 13.Rxf8+ Qxf8 14.Qxa6 = (0.04) Depth: 11 00:00:19 6520kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 g6 15.Rxf8+ Kg7 = (0.04) Depth: 12 00:00:42 16195kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg2 Qd5+ 5.Qxd5 exd5 6.Rxd5 Re8 7.Kf3 f6 8.Rd6 a5 = (0.09) Depth: 13 00:01:51 44949kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Re8 ² (0.49) Depth: 14 00:05:18 129643kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qh1+ 15.Kc7 +- (1.42) Depth: 14 00:07:58 190721kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qh1+ 15.Kc7 Qc1+ +- (1.82) Depth: 15 00:20:04 472349kN (Blass, Tel-aviv 14.12.2001) Uri
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