Author: John J. J. Smith
Date: 15:58:33 02/04/06
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On February 04, 2006 at 09:17:48, F. Huber wrote: >Hello mate problem fans, > >a new version of the mate solver ChestUCI 4.3 is available! > >There are only 2 new features: > >1) a new option ´AutoLogfile´: if switched ON, then ChestUCI automatically >writes all solutions to the log-file ´ChestLog.txt´. This might e.g. be >useful, when the chess-GUI (e.g. Arena) is solving a complete EPD-testsuite >of mate problems - in this case you´ll find all solutions in the usual format >(i.e. with times and parameters) of the ChestUCI-database in this log-file. > >2) the range (and the meaning) of the special parameter ´ChecksOnly´ has been >extended to 0..31 by adding 3 more values (C4/C8/C16). >A short explanation of all possible values from Chest´s point of view: >C1 ... only own check moves >C2 ... no opponent check moves >C4 ... no opponent capture moves \ >C8 ... no own capture moves > new! >C16 ... no own check moves / > >These values can be used in any combination (except of course C1+C16). >Since these parameters (especially the new C4/C8/C16) are quite hard >restrictions, they will work only for some special mate problems, and >so they have to be tested/entered manually - only C1 is tried automatically >by ChestUCI´s Automatic/AutoTurbo-mode. > >But IF one of these C-values works, then it gives impressive results: > >5b2/8/1p6/pPp1p1p1/p1PpPpP1/K2P1P2/N2N4/k7 w - - bm #30; >07:51 @ C2/R0/K1/P2/X5; without C4 >00:29 @ C6/R0/K1/P2/X5; with additional C4 (factor 16) > >4B1Rn/1p1p1rbr/3P2kp/3P3R/1p1p2P1/1P2p3/2P1P3/4K3 w - - bm #35; >00:24 @ C4/R0/K2/P6/X8; with C4 (VERY/TOO long without C4) > >8/4PB2/4NPK1/5PP1/2P5/N7/p7/k1b1Q3 w - - bm s#20; >4300 sec. with C0/R0/K2/P1/X1 > 54 sec. with C12/R0/K2/P1/X1 (factor 80) > >The new version of ChestUCI 4.3 can be downloaded at: >http://www.uciengines.de/UCI-Engines/Chest/chest.html > >Regards, >Franz. Thanks Franz for this and your help in using ChessUCI. All the best. John
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