Author: Vincent Lejeune
Date: 01:18:09 05/11/04
Go up one level in this thread
On May 11, 2004 at 01:17:32, John Merlino wrote: >On May 10, 2004 at 18:03:37, Vincent Lejeune wrote: > >>On May 10, 2004 at 17:02:11, Rob Basham wrote: >> >>>ECM......#28 >>> >>> >>>[D]r1b2rk1/2q2ppp/2pbp3/p7/4Nn2/3B4/PPPBQ1PP/R4R1K w - - 0 1 >>> >>> >>>The move they want here is RxN....!? >>> >>>has anyone worked on this one? >>>I do not see how that is a win....:-) >>> >>>Rob >> >>After the only line : >> >>1. Rxf4 Bxf4 2. Nf6+ gxf6 3. Qg4+ (note a transposition is possible : 1. Nf6+ >>gxf6 2.Rxf4 Bxf4 ...) >> >> >>here's what Chessmaster 9000-SKR and Shredder 8 say : >> >>Time Depth Score Positions Moves >>4:50 1/14 0.10 114267479 3...Kh8 4.Bxf4 f5 5.Qg3 Qb7 6.Bd6 >> Bd7 7.Rd1 f6 8.Bxf8 Rxf8 9.Bf1 >> Bc8 10.b3 c5 11.Bc4 >>3:41 1/14 0.37 86451977 3...Bg5 4.Bxg5 f5 5.Qh4 f6 6.Bxf6 >> Qf7 7.Be5 Ba6 8.c4 Rad8 9.Rd1 Qg6 >> 10.b3 Qg4 >> >> >>Analysis by Shredder 8: >> >>1. = (0.10): 3...Rh8 4.Fxf4 f5 5.Dg3 Db6 6.Fc7 Db7 7.Fd6 Fd7 8.Fxf8 Txf8 9.Dd6 >>Tg8 10.De5+ Tg7 11.Td1 c5 12.Ff1 Fe8 13.Td8 Dc6 14.Dc3 a4 >>2. ² (0.65): 3...Fg5 4.Fxg5 f5 5.Dh4 f6 6.Fxf6 Df7 7.Fc3 Fa6 8.Fxa6 Txa6 9.Te1 >>c5 10.Te3 Tfa8 11.Tg3+ Rf8 12.Fe5 Df6 13.Dxf6+ Re8 >> >>In fact this seems not to be winning but 1. Rxf4 (or 1.Nf6+) seems to be the >>best way to play > >This is true, and sometimes that's the point of a position in a test suite -- >not to find the WINNING move, but simply to find the BEST move. Yes, 90-95% of solutions for test suites are winning (often only winning) moves, but sometimes there are drawing, saving and "not losing" moves. > >Also, it looks like you have modified your SKR setting, and are using a >selective search value of at least 13. SKR is supposed to use a value of 12. > >jm Yes, sorry to not mention this, I always like big selective search, my SKR is modified with ss=16. Do you know if Johan plan to rise the possible value for the ss ? Or do you have results of a modified CM with ss>16 (24,32) ? is it a lot counter productive ? Thanks, Vincent Lejeune.
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