Author: Daniel Shawul
Date: 07:55:33 11/22/05
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On November 22, 2005 at 07:19:24, Bernhard Bauer wrote: >It takes quite a lot of time for TogaII 1.1 to solve this simple position. >Why? And what can be done to become faster? > >[D]8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w > > > >I ran Toga in MV mode to see what happens: > >TogaII 1.1: > 10/25 00:00 93.730 0 +0,62 g3g4 f5xg4 > 10/23 00:00 71.122 0 +0,97 Kf4xf5 b3b2 >---------------------------------------------------------------- > 11/27 00:00 138.414 0 +0,65 g3g4 f5xg4 > 11/25 00:00 104.037 0 +1,07 Kf4xf5 b3b2 >---------------------------------------------------------------- > 12/29 00:00 216.945 0 +0,62 g3g4 f5xg4 > 12/28 00:00 152.677 0 +1,10 Kf4xf5 b3b2 >---------------------------------------------------------------- > 13/31 00:00 349.022 0 +0,62 g3g4 f5xg4 > 13/30 00:00 237.544 0 +1,13 Kf4xf5 b3b2 >---------------------------------------------------------------- > 14/32 00:00 591.397 0 +0,62 g3g4 f5xg4 > 14/32 00:00 388.257 0 +1,12 Kf4xf5 b3b2 >---------------------------------------------------------------- > 15/37 00:01 1.502.182 0 +0,35 g3g4 f5xg4 > 15/35 00:01 860.372 0 +1,15 Kf4xf5 b3b2 >----------------------------------------------------------------- > 16/37 00:02 2.669.436 0 +0,34 g3g4 f5xg4 > 16/37 00:02 1.693.063 0 +1,13 Kf4xf5 b3b2 >------------------------------------------------------------------ > 17/41 00:05 5.832.591 1.060.000 +0,25 g3g4 f5xg4 > 17/39 00:05 3.037.599 1.060.000 +1,13 Kf4xf5 b3b2 >------------------------------------------------------------------- > 18/43 00:09 10.075.591 1.070.000 +0,25 g3g4 f5xg4 > 18/41 00:09 6.654.687 1.070.000 +1,13 Kf4xf5 b3b2 >------------------------------------------------------------------- > 19/45 00:25 27.200.428 1.073.600 +0,25 g3g4 f5xg4 > 19/44 00:25 20.634.461 1.073.600 +1,17 Kf4xf5 b3b2 >------------------------------------------------------------------- > 20/48 00:52 55.444.060 1.063.077 +0,64 g3g4 f5xg4 > 20/47 00:52 40.322.329 1.063.077 +1,15 Kf4xf5 b3b2 >------------------------------------------------------------------- > 21/50 02:25 146.248.626 1.002.210 +0,68 g3g4 f5xg4 > 21/50 02:25 127.989.155 1.002.210 +1,18 Kf4xf5 b3b2 >------------------------------------------------------------------- > 22/51 04:13 260.375.829 1.026.858 +0,88 g3g4 f5xg4 > 22/51 04:13 229.471.411 1.026.858 +1,17 Kf4xf5 b3b2 >------------------------------------------------------------------- > 23/57 19:35 1.225.427.978 1.042.316 +1,15 g3g4 f5xg4 > 23/57 19:35 1.092.259.986 1.042.316 +1,28 Kf4xf5 b3b2 >------------------------------------------------------------------- > 24/61 39:52 2.367.930.430 1.041.417 +1,28 Kf4xf5 b3b2 > 24/61 39:52 2.491.191.961 1.041.417 +1,35 g3g4 f5xg4 >------------------------------------------------------------------- > 24/61 45:39 2.367.930.430 1.019.832 +1,28 Kf4xf5 b3b2 > 25/61 45:39 2.793.468.698 1.019.832 +1,85 g3g4 f5xg4 > >Kind regards >Bernhard It is a pawn endgame evaluation. Some where along the pv the black king will be ver far from the blocking white and black pawns at file h. The white king is at file g. So if you give a pretty good score for this you will solve it easily. Also KPKP bitbases will help here. daniel
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