Author: Uri Blass
Date: 09:45:58 11/05/02
Go up one level in this thread
On November 05, 2002 at 08:16:19, José Antônio Fabiano Mendes wrote: >On November 05, 2002 at 07:34:14, Uri Blass wrote: > >>On November 05, 2002 at 07:27:00, Ulrich Tuerke wrote: >> >>>On November 05, 2002 at 07:00:40, Jorge Pichard wrote: >>> >>>>It looks as if Chess Genius 1.5 will NOT reach a SSDF 1950 Elo after all. This >>>>will make CG 1.5 for palm, 150 Elo points weaker than Chess Tiger for Palm. >>>> >>>>Pichard. >>> >>>This is just one single match. Testing 2 versions of the same program in match >>>may distort the results. I suspect that the difference in strength is >>>overestimated here. >>> >>>Uli >> >>Are CG1.5 palm and Genius1 based on the same software when the only difference >>is hardware? >> >>I think that an interesting test may be the position when computer sacrificed a >>piece in 1974 when the sacrifice was correct(unfortunately I did not save the >>position) >> >>I remember that I read that genius1 solved this problem when Genius3 could see >>nothing even after many hours on p100. >> >>Unfortunately I do not have the position here. >> >>Uri > Please see ===> http://membres.lycos.fr/albillo/ajedre3b.htm > [D]rq2k2r/3n1ppp/p2bpnb1/8/Np1N4/1B3PP1/PP2Q2P/R1BR2K1 w Yes this is the position that I meant Can palm genius solve it? Movei cannot see it in a reasonable time It can see a positive score for Bxe6 and it's mobility evaluation does not help it to get a positive score even after Nxe6 fxe6 Qxe6+ Be7 After these moves it can see something like the following: The score is going up every iteration so maybe depth 13 is enough for a positive score. depth=11 -0.36 d1e1 b8d8 c1f4 f6g8 f4d6 a8c8 d6b4 a6a5 b4c3 d7f6 c3a5 d8d4 e1e3 Nodes: 20139207 NPS: 123040 Time: 00:02:43.68 end of iteration 11: depth=11 -0.36 d1e1 b8d8 c1f4 f6g8 f4d6 a8c8 d6b4 a6a5 b4c3 d7f6 c3a5 d8d4 e1e3 Nodes: 29017490 NPS: 126086 Time: 00:03:50.14 depth=12 +0.00 d1e1 b8d8 c1f4 f6g8 a1d1 a8a7 a4c5 d8c8 d1c1 c8d8 c1d1 Nodes: 72017520 NPS: 122896 Time: 00:09:46.00 Uri
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