Author: José Carlos
Date: 02:29:47 06/04/01
Go up one level in this thread
On June 04, 2001 at 04:30:03, Slater Wold wrote: >On June 04, 2001 at 03:36:25, Rudolf Huber wrote: > >> >>A couple of days ago I said (in a discussion about mtd(f)) that my chess >>program can search the starting position to 30 ply over night when the eval >>evaluates material only: >> >> >>SOS no eval >> 1.00 0:00 0.00 1.h3 (2) >> 2.00 0:00 0.00 1.h3 (45) >> 3.00 0:00 0.00 1.h3 h6 2.h4 (138) >> 4.00 0:00 0.00 1.h3 h6 2.h4 (263) >> 5.00 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 (435) >> 6.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 (1.860) >> 7.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 (1.942) >> 8.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 (2.024) >> 9.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 (5.086) >> 10.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 (16.891) >> 11.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (41.424) >> 12.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (94.654) >>463.9 >> 13.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (132.293) >>497.3 >> 14.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (245.124) >>505.4 >> 15.01 0:00 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (359.203) >>533.7 >> 16.01 0:01 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (714.937) >>593.8 >> 17.01 0:02 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (1.212.436) >>570.2 >> 18.01 0:02 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (1.729.490) >>585.4 >> 19.01 0:05 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (3.025.316) >>605.0 >> 20.01 0:08 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (4.700.415) >>587.5 >> 21.01 0:15 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (9.323.868) >>621.5 >> 22.01 0:29 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (16.881.247) >>582.1 >> 23.01 0:48 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (28.659.953) >>597.0 >> 24.01 1:36 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (56.472.536) >>588.2 >> 25.01 3:37 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(127.308.632) 586.6 >> 26.01 7:41 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(275.114.597) 596.7 >> 27.01 17:31 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(622.179.104) 591.9 >> 28.01 45:16 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(1.602.666.536) 590.0 >> 29.01 80:46 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(-1452508008) 586.5 >> 30.01 161:28 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(1.397.948.590) 587.6 >> 31.01 513:07 0.00 1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 >>(471.878.568) 573.3 >> >> >>Actually 30 ply was reached after 2:41 hours. >> >>SW: no search extensions, normal nullmove pruning, normal quiescence >> search >>HW: 2xCeleron 466 MHz, 500 MByte Hash >> >> >>Can anyone do better? >> >> >>Rudolf > >h3? Amazing. Now we all know why computers use opening books! :) > > >Slate I think you misunderstood him. He said 'material only', which means that the program choses the first move it generates and sticks to it unless it sees it's losing material. 'h3' is just a move that doesn't lose material in 30 plies. There are a lot of others, but the program doesn't mind, since he thinks they all are worth the same. José C.
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