Author: William Bryant
Date: 13:09:43 03/11/00
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On March 11, 2000 at 15:47:53, William Bryant wrote: >On March 11, 2000 at 12:33:40, pavel wrote: > >>hi, >> this is the first time i am ever trying a diagram in this forum, >>if it doesnt work i am sorry for any inconvenience. and if it doest work, then >>thanks to dann corbit for referring to EPDdiag, in one of his post. >>the game below is from one of the many games that i played in chess server >>(chess.net) and one of my fav too. i would like to know how fast your program >>finds the mate??? >> >>white- "bigbadjohn" >>Black- "gnu" >>white elo- "1659" >>blacks elo- "1473" >>time control- "900+0" >> >>[D]3qlrkl/lR5p/RlQ3pl/3pp3/2pb4/5PlP/4rlPl/7K w - - >> >>the original moves were after this position of the game >> >>38) Re1+ >>39)Kh2 Bg1+ >>40)Kg3 Qg5# >> >>i personally found the mate very interesting, what do you think? >>i played under the handle "gnu" >>thanks for any comments and feedbacks >>and by the way "comet doesnt finds the mate" >>and all other programs that i have finds the mate less then 1 min. >>junior6 finds it in 23sec!!!! >>thanks >>pavel > >I think this is a great position because it is a case where one of the >real amatures gets lucky. > >Screamer solves this in 1.992 seconds announcing mate in 8 moves. > >Welcome to Screamer 1.00 Build 49 >Current Hash Table Size: 8192 K bytes >Current Pawn Hash Size: 2048 K bytes >Debug Control On >PVS Search >NULL move Search > > >New Game ... >Move 1 W>> > >New Board Position >3q1rk1/1R5p/R1Q3p1/3pp3/2pb4/5P1P/4r1P1/7K w - - 0 0 >Move 1 W>> >PLY NODES TIME SCORE PV >__________________________________________________ > 5/00 19107 0.373 +0.00 Qxg6+ hxg6 Rxg6+ Kh8 Rh6+ Kg8 Rg6+ > 6/00 40849 0.727 +0.00 Qxg6+ hxg6 Rxg6+ Kh8 Rh6+ Kg8 Rg6+ > 6/01 58955 1.018 +0.18 Qe6+ Kh8 Rxh7+ Kxh7 Qxg6+ Kh8 Qh6+ Kg8 Rg6+ > Kf7 Qg7+ Ke8 Re6+ Qe7 Rxe7 > 7/00 86249 1.435 ++ Qe6+ > 7/00 125590 1.992 +327.52 Qe6+ Kh8 Rxh7+ Kxh7 Qxg6+ Kh8 Qh6+ Kg8 Rg6+ > Kf7 Qg7+ Ke8 Re6+ Qe7 Qxe7++ > 8/00 324510 5.301 +327.52 Qe6+ Kh8 Rxh7+ Kxh7 Qxg6+ Kh8 Qh6+ Kg8 Rg6+ > Kf7 Qg7+ Ke8 Re6+ Qe7 Qxe7++ > ----- Search Stopped ----- > 8/00 779655 12.562 +327.52 Qe6+ Kh8 Rxh7+ Kxh7 Qxg6+ Kh8 Qh6+ Kg8 Rg6+ > Kf7 Qg7+ Ke8 Re6+ Qe7 Qxe7++ > Total Search Time: 12seconds > Move: Qe6+ > > >William >wbryant@ix.netcom.com Alright, lets try this again. If you use the correct epd string (with black to move), which, I believe, was the intent of the original post, Screamer takes several minutes to find the mate in 9 Re1+ Kh2 Bg1+ Kh1 Bf2+ Kh2 Bg3+ Kxg3 Qg5+ Kf2 Rxf3+ Kxe1 Qc1+ Ke2 Re3+ Kf2 Qe1+ I still like the first version better :) William wbryant@ix.netcom.com
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