Author: Sune Fischer
Date: 03:04:29 03/03/04
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On March 03, 2004 at 04:18:30, Paul Byrne wrote: >Granted, it is not a terribly useful position, as it came from a wild 8 (pawns >start on 4th rank) game on ICC between 2 patzers. And a very short search will >get you a score of +10 to +15 and better in white's favor. > >It is, however, surprisingly tough to see the mate, and makes an interesting >test position... > >r1b3n1/6k1/1n6/pP3qPQ/2PP2p1/1p4b1/4B3/R1BK2NR w - - 0 15 > >Guildenstern's normal search cannot see it here, while it's PN search gets it in >under 30 seconds on an athlon 2400+. The line the PN search produces is mate in >19, but is likely not optimal, as PN search is not terribly concerned with >winning in the least number of moves. > >So, what programs can see the win from here? Not mine, I get a +22 score though. How about this one from one of my recent games. I get a +13 score in a minute but no mate, I wonder if there is a mate within reach of any program? [D]r4rk1/ppqb1Nbp/2n3p1/8/3PN1P1/1BP1Q2P/PP6/R4RK1 w - - 0 23 -S. >-paul
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