Author: Timothy J. Frohlick
Date: 10:35:56 10/11/00
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Jim, Gambit Tiger 1.0 on a PII 333 with 64M RAM does not get the solution either after 8 minutes. I do believe that in order to get this solution the programs would have to see the consequences of the "fifty move rule" and search fifty moves ahead or more. Deeper Blue would have seen it but none of todays PCs can do this. The programs can't conceptualize yet and the knowledge for the millions of specific exceptional positions like this would slow the programs to a crawl. Positions like this show us what idiots chess programs really are. Then again, if you miscalculate on this position you may lose as white... So, who is the idiot? Tim Frohlick On October 11, 2000 at 02:21:40, Jim Monaghan wrote: >[D] 2k5/2p5/1q1p4/pPpPp1pp/N1P1Pp2/P4PbP/KQ4P1/8 w - - 0 1 > >A. Petrosian - Hazai, 1970 As Dr. Nunn states in his annotations Black's >position is quite bad and he tried Qa7-b6 last move and White couldn't resist >snapping off the queen ... and drawing. The correct scheme is to reject the >"gift" and play Qd2, Kb3, Nc3, Ka4, Na2-c1-b3 and Qxa5 with Black just watching. > I gave this to Crafty 17.13 ... > >20 4:33 5.32 1. Nxb6+ cxb6 2. h4 gxh4 3. Qc1 h3 > 4. gxh3 h4 5. Kb3 Kd7 6. Kc3 Bf2 7. > Kd3 Ke7 8. Qd2 Bg3 9. Qc2 <HT> > >Is there a program that "understands" the idea of a blockade, or is this still a >tough area for programmers ... where ply depth doesn't really help but something >in it's evaluation function? From a human standpoint the concept is not that >complex although A. Petrosian stumbled ... > >Cheers, > >Jim
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