Author: leonid
Date: 16:44:15 08/27/00
Go up one level in this thread
On August 27, 2000 at 14:06:20, Heiner Marxen wrote: >On August 27, 2000 at 09:41:32, Michel Langeveld wrote: > >>On August 27, 2000 at 08:36:35, Uri Blass wrote: >> >>>On August 27, 2000 at 08:19:39, Michel Langeveld wrote: >>> >>>>I think the fastest mate-solver is Chest... but what's the fastest mate-finder? >>>> >>>>Michel Langeveld >>> >>>I think that you should give test positions and everybody can check. >>> >>>Uri >> >>(mate in 7) >>1QBK1Q1R/P1PPP2P/6QB/8/4N3/2n4n/p1kpp2p/rqb1qqr1 w - -; bm Nf2+; ce 32754; dm 7; >>pv Nf2+ Rxg6 Qf5+ Ne4 Qxe4+ Kc3 Bg7+ Rxg7 Qe5+ Kc4 Ba6+ Qb5 Qbxb5#; > >Just as a reference point: >Chest on a K6-3/400 needs 769 seconds (12.8 minutes) to complete that. >That is much slower than the typical time for a mate finder. > >Also, this is not a particularly difficult example: all moves of white >are check moves. Restricting the white side to check moves, only, >will still find this solution. The restricted tree is much smaller, >and the solution will be found very quickly. >[ That is what leonid calls "quick logic" I believe. ] Right! If you could put this position in graphics, it will be very nice. Thanks! Leonid. >OTOH, I suspect this to be a typical example (at least for wild5). > >Heiner
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