Author: John Merlino
Date: 09:23:27 05/11/04
Go up one level in this thread
On May 11, 2004 at 04:18:09, Vincent Lejeune wrote: >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. I cannot answer these questions. Johan has told me there is going to be a new version of the engine in CMX000, but I don't know how (or if) the default settings are going to be changed. jm
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