Author: Slater Wold
Date: 14:45:39 03/01/01
Go up one level in this thread
On March 01, 2001 at 16:25:01, Sune Larsson wrote: > > [D]8/2b2pp1/K2p4/p4P2/P7/6P1/8/2k3B1 w - - 0 1 > > Troitzky 1923 > > Hm, a bishopending with black a pawn up. But white's king is much > better positioned. White's bishop is a real flyer while the black > one tries to take off again and again - but never makes it... > A flyer versus a goose and the hunt is just about to start. > > Test: If your program is a flyer or a goose. The faster the better > But the evals should show that white is *winning* > > > Sune This is Hiarcs 7.32 (all defualt settings) on a P4 1.5Ghz. At first, I think it sees that white is down a pawn, but quickly sees winning lines. I am curious to see, that with equal time, on equal hardware, if this would usually end in a draw. Here's my eval after a little over 10 minutes: Hiarcs 7.32 - Wold,S 8/2b2pp1/K2p4/p4P2/P7/6P1/8/2k3B1 w - - 0 1 Analysis by Hiarcs 7.32: 1.Bb6 Bxb6 2.Kxb6 ³ (-0.34) Depth: 1 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 Kc2 3.Kxa5 d5 = (-0.24) Depth: 5/10 00:00:00 1.Bb6 Bxb6 2.Kxb6 = (-0.24) Depth: 5/10 00:00:00 1kN 1.Kb7 Bd8 = (0.14) Depth: 5/10 00:00:00 2kN 1.Kb7 Bd8 2.Kc6 Bf6 3.Be3+ Kc2 4.Kxd6 = (0.17) Depth: 5/12 00:00:00 2kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Kxd6 Kb3 4.Bd4 Kxa4 5.Bxg7 = (0.06) Depth: 6/12 00:00:00 7kN 1.Bb6 Bxb6 2.Kxb6 Kd2 3.Kxa5 Ke3 4.Kb5 = (0.21) Depth: 6/14 00:00:00 9kN 1.Bb6 Bxb6 = (-0.18) Depth: 7/14 00:00:00 17kN 1.Bb6 Bxb6 2.Kxb6 d5 3.Kc5 Kb2 4.f6 gxf6 5.Kxd5 µ (-0.82) Depth: 7/14 00:00:00 20kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Kxd6 Kb3 4.Bd4 Kxa4 5.Bxg7 = (0.06) Depth: 7/15 00:00:00 28kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Bd4 Kb3 4.Bxg7 Kxa4 5.Kxd6 = (0.06) Depth: 8/16 00:00:00 66kN 1.Kb7 Bd8 2.Bd4 Kc2 3.Kc6 g6 = (0.01) Depth: 9/17 00:00:00 160kN 1.Bd4 Kc2 2.Bxg7 d5 3.g4 Bd8 4.Kb5 Kd3 5.Kc5 Ke4 = (0.07) Depth: 9/18 00:00:01 221kN 1.Bd4 Kc2 2.Bxg7 d5 3.g4 Bd8 4.Kb5 Kd3 5.Kc5 Ke4 = (0.07) Depth: 10/20 00:00:01 324kN 1.Bd4 d5 2.Bxg7 Bxg3 3.Kxa5 Kc2 4.Kb5 Bf2 5.a5 d4 6.Kc4 d3 = (-0.01) Depth: 11/21 00:00:03 823kN 1.Bd4 d5 ³ (-0.26) Depth: 12/26 00:00:06 1562kN 1.Bd4 d5 2.Bxg7 Bxg3 3.Bd4 Be1 4.Kb5 Kc2 5.Kc6 Kb3 6.Kxd5 Bg3 7.Bf6 Kxa4 ³ (-0.68) Depth: 12/26 00:00:09 2151kN 1.Kb7 Bd8 2.Bd4 Kc2 3.Bxg7 Kb3 4.Kc6 Kxa4 5.Kd7 Bg5 6.Kxd6 Kb4 7.Kd5 = (-0.17) Depth: 12/28 00:00:12 2811kN 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 = (0.04) Depth: 12/28 00:00:16 3774kN 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Ke8 Bh6 6.Kxf7 Kc2 7.Kxf6 Kb3 8.Ke6 Kxa4 9.Kxd6 = (-0.11) Depth: 13/28 00:00:17 4138kN 1.f6 gxf6 = (0.14) Depth: 14/28 00:00:30 7144kN, tb=4 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 6.Ke8 Bg7 7.Kxf7 Bh8 8.Kg8 ² (0.33) Depth: 14/28 00:00:34 8259kN, tb=4 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 6.Ke8 Bg7 7.Kxf7 Bh8 8.Kg8 Kb3 9.Kxh8 Kxa4 ² (0.33) Depth: 15/30 00:01:03 15016kN, tb=15 1.f6 gxf6 ² (0.58) Depth: 16/30 00:02:06 29927kN, tb=73 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 6.Ke8 Bg7 7.Kxf7 Bh8 8.Kg8 ² (0.63) Depth: 16/30 00:02:18 32914kN, tb=74 1.f6 gxf6 ± (0.88) Depth: 17/30 00:04:55 68729kN, tb=568 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 6.Ke8 Bg7 7.Kxf7 ± (0.92) Depth: 17/30 00:05:24 75599kN, tb=584 1.f6 gxf6 ± (1.17) Depth: 18/30 00:12:53 176492kN, tb=1548 (Wold, Houston 01.03.2001) This is Fritz 6e on the same machine. I cleared hash, and used all default settings. Fritz is much quicker to see winning lines, but it's search is over 2x faster and had a lot more tablebase hits. Fritz 6 - Wold,S 8/2b2pp1/K2p4/p4P2/P7/6P1/8/2k3B1 w - - 0 1 Analysis by Fritz 6: 1.Bd4 µ (-1.06) Depth: 1/2 00:00:00 1.Bd4 g6 µ (-1.00) Depth: 2/7 00:00:00 1.Bd4 g6 2.g4 µ (-0.94) Depth: 3/7 00:00:00 1.Bb6! µ (-0.87) Depth: 3/8 00:00:00 1.Bb6! Bxb6 2.Kxb6 d5 3.Kxa5 ³ (-0.59) Depth: 3/8 00:00:00 1.Bb6 Bxb6 2.Kxb6 d5 3.Kxa5 ³ (-0.59) Depth: 4/7 00:00:00 1.Bb6! ³ (-0.28) Depth: 5/10 00:00:00 1kN 1.Bb6 Bxb6 2.Kxb6 Kc2 3.f6 gxf6 4.Kxa5 ³ (-0.28) Depth: 6/9 00:00:00 2kN 1.Kb7! = (-0.25) Depth: 6/10 00:00:00 2kN 1.Kb7! Bd8 2.Kc6 Kd2 3.Kxd6 Bf6 = (-0.03) Depth: 6/11 00:00:00 3kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Kxd6 Kb3 4.Kd7 = (0.06) Depth: 7/13 00:00:00 5kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Kxd6 Kb3 4.Kd7 Bf6 = (-0.03) Depth: 8/14 00:00:00 10kN 1.Kb7 Bd8 2.Bb6 Bxb6 3.Kxb6 Kc2 4.Kxa5 d5 5.Kb4 = (-0.09) Depth: 9/16 00:00:00 30kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Bd4 Kb3 4.Bxg7 Kxa4 5.f6 Kb4 = (-0.22) Depth: 10/18 00:00:00 71kN 1.Kb7 Bd8 2.Bd4 Kc2 3.Kc6 = (-0.22) Depth: 11/18 00:00:00 146kN 1.Kb7 Bd8 2.Kc6 Kc2 3.Bd4 ³ (-0.44) Depth: 12/19 00:00:00 333kN 1.f6! ³ (-0.41) Depth: 12/19 00:00:00 406kN 1.Bd4! ³ (-0.37) Depth: 12/19 00:00:00 461kN 1.Bd4! d5 2.Bxg7 Kc2 3.g4 Bd8 4.g5 Bxg5 5.Kxa5 Kd3 = (-0.22) Depth: 12/19 00:00:00 535kN 1.Bd4 d5 2.Bxg7 Kd2 3.Kb5 Bxg3 4.Kxa5 Bf2 5.Kb5 d4 = (-0.22) Depth: 13/20 00:00:00 805kN 1.Bd4 d5 2.Bxg7 Kc2 3.g4 Bd8 4.Bh8 Kd3 5.g5 Bxg5 ³ (-0.31) Depth: 14/21 00:00:01 1304kN 1.Bd4-- ³ (-0.62) Depth: 15/22 00:00:02 2513kN, tb=4 1.Bd4-- ³ (-0.62) Depth: 15/23 00:00:02 2702kN, tb=4 1.f6! ³ (-0.59) Depth: 15/23 00:00:02 2876kN, tb=4 1.f6! gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Ke8 Bh6 = (0.00) Depth: 15/23 00:00:03 3156kN, tb=4 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Ke8 Bh6 = (-0.12) Depth: 16/24 00:00:03 4012kN, tb=15 1.Kb7! = (-0.09) Depth: 16/24 00:00:04 4583kN, tb=16 1.Kb7 Bd8 2.Kc6 Kc2 3.Bd4 Kb3 4.Bxg7 d5 5.Kb5 Kc2 = (0.00) Depth: 17/28 00:00:06 6851kN, tb=58 1.f6! = (-0.12) Depth: 17/28 00:00:06 7277kN, tb=58 1.f6! gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 = (0.22) Depth: 17/29 00:00:07 7745kN, tb=69 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 ² (0.41) Depth: 18/26 00:00:08 9541kN, tb=180 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 = (0.22) Depth: 19/29 00:00:12 13379kN, tb=386 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kc2 ² (0.34) Depth: 20/32 00:00:21 22995kN, tb=851 1.f6! ² (0.66) Depth: 21/32 00:00:35 36539kN, tb=1523 1.f6! gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kd1 ± (1.09) Depth: 21/33 00:00:40 41382kN, tb=1837 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kd1 ± (1.38) Depth: 22/34 00:01:12 70081kN, tb=3989 1.f6 gxf6 2.Kb7 Bd8 3.Kc8 Be7 4.Kd7 Bf8 5.Be3+ Kd1 +- (1.47) Depth: 23/43 00:02:12 124820kN, tb=8063 1.f6 g5 2.Kb7 Bd8 3.Bd4 Kc2 4.Kc8 Bxf6 5.Bxf6 Kb3 ± (1.25) Depth: 24/40 00:04:05 228478kN, tb=18318 1.f6 g5 2.Kb7 Bd8 3.Bd4 Kc2 4.Kc8 Bxf6 5.Bxf6 Kb3 ± (1.28) Depth: 25/46 00:08:34 473865kN, tb=44440 (Wold, Houston 01.03.2001) About 4 minutes less, and it found a better line. Slater Wold
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