Author: Rafael Andrist
Date: 02:21:54 10/13/01
Go up one level in this thread
On October 12, 2001 at 13:01:35, Dann Corbit wrote: >Four positions from a pawn test suite I am working on... >The first three have clear, alternate checkmates. >The last one, I have not been able to solve yet (maybe just really hard). > >[D]3k4/2p5/1pKp4/p2P4/2P5/P7/1P6/8 w - - bm c5; id "J&S45.10"; c0 "This one is >questionable."; analysis by Wilhelm ply time value nodes N nodes Q PV 1 0s 0.07 7 0 b2-b3 2 0s 0.09 25 7 b2-b3 Kd8-c8 3 0s 0.08 79 11 b2-b3 Kd8-c8 Kc6-b5 4 0s 0.10 325 75 b2-b4 a5xb4 a3xb4 Kd8-c8 5 0s 0.10 645 84 b2-b4 a5xb4 a3xb4 Kd8-c8 Kc6-b5 6 0s 0.08 1619 208 b2-b3 Kd8-c8 b3-b4 Kc8-d8 Kc6-b5 a5xb4 7 0s 0.08 3375 275 b2-b3 Kd8-c8 b3-b4 Kc8-d8 Kc6-b5 a5xb4 a3xb4 8 0s 0.04 6831 516 b2-b3 Kd8-c8 b3-b4 Kc8-d8 b4xa5 b6xa5 a3-a4 Kd8-c8 9 1s 0.07 12037 647 b2-b4 a5xb4 a3xb4 Kd8-c8 c4-c5 d6xc5 b4xc5 b6xc5 Kc6xc5 10 1s 0.05 23438 1213 b2-b4 a5xb4 a3xb4 Kd8-c8 Kc6-b5 Kc8-d7 Kb5-a4 Kd7-e7 Ka4-b3 Ke7-f6 11 2s 0.06 40739 1780 b2-b4 a5xb4 a3xb4 Kd8-c8 c4-c5 d6xc5 b4xc5 b6xc5 Kc6xc5 Kc8-d7 Kc5-d4 12 3s 0.04 71318 3179 b2-b4 a5xb4 a3xb4 Kd8-c8 c4-c5 d6xc5 b4xc5 b6xc5 Kc6xc5 Kc8-d7 Kc5-d4 Kd7-d6 13 4s 0.06 124227 4680 b2-b4 a5xb4 a3xb4 Kd8-c8 Kc6-b5 Kc8-d8 Kb5-a4 Kd8-e7 Ka4-b3 Ke7-f6 Kb3-c3 Kf6-e5 Kc3-d3 14 11s 0.08 298967 12811 c4-c5 b6xc5 Kc6-b5 Kd8-d7 a3-a4 c5-c4 Kb5xa5 c7-c6 d5xc6+ Kd7xc6! Ka5-b4 d6-d5 a4-a5 Kc6-b7 Kb4-c5 15 21s 0.08 612393 21205 c4-c5 b6xc5 Kc6-b5 Kd8-d7 a3-a4 c5-c4 Kb5xa5 c7-c6 d5xc6+ Kd7xc6! Ka5-b4 d6-d5 a4-a5 Kc6-b7 Kb4-c5 16 38s 0.49 1127757 43197 c4-c5 b6xc5 Kc6-b5 Kd8-d7 a3-a4 c5-c4 Kb5xa5 c7-c6 d5xc6+ Kd7xc6! Ka5-b4 d6-d5 a4-a5 Kc6-d6 a5-a6 Kd6-c6 a6-a7 Wilhelm seems to prefer c5, but the score isn't convincing. Rafael B. Andrist
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