Author: Uri Blass
Date: 05:54:58 12/05/05
Go up one level in this thread
On December 05, 2005 at 08:51:29, Uri Blass wrote: >On December 05, 2005 at 08:34:26, Gabor Szots wrote: > >>Just two examples. Positions taken from from PET. >> >> >>8/5k2/4p3/4Pp1p/5P1P/3Rn2K/6p1/8 b - - bm g1=B; id "PET026: rook >>vs knight"; >> >>Here Rybka plays g1Q, although it does see it is only draw. >> >> >>8/8/1P1k2p1/8/5P1p/4Qb2/1q4PK/8 w - - bm Qe5+; id "PET046: Q+B >>vs Q"; >> >>Rybka captures at f3. >> >> >>Both positions are easily solved by most of the engines. Position No26 usually >>in 0 seconds. > >It seems that Rybka does not consider underpromotions > >[D]8/3P1k2/2q5/8/8/6Pb/7P/6K1 w - - 0 1 > >New game, >8/3P1k2/2q5/8/8/6Pb/7P/6K1 w - - 0 1 > >Analysis by Rybka 1.0 Beta 32-bit: > >1.Kf2 Qc2+ > -+ (-17.90) Depth: 3 00:00:00 >1.Kf2 Qc2+ > -+ (-17.95) Depth: 4 00:00:00 >1.Kf2 Qc2+ > -+ (-320.00) Depth: 5 00:00:00 > >(, 05.12.2005) > >In the second position it is really strange that rybka cannot solve it in a >short time and I guess that there is a bug. > >Uri I can add that I would like to use Rybka 64 bit under chessbase or under shredder and my question is if it is possible without buying some new version of windows for 64 bit. Uri
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