Author: Mike Byrne
Date: 07:15:19 10/18/03
Go up one level in this thread
On October 18, 2003 at 10:12:49, Mike Byrne wrote: >On October 18, 2003 at 09:36:35, leonid wrote: > >>On October 17, 2003 at 23:09:34, Mike Byrne wrote: >> >>>>If somebody want slightly deeper position then try this: >>>> >>>>[D] 1R2NnqN/3pPpQ1/b3nPpp/K2R2bk/4pPrr/6Pp/4B2P/3N4 w - - >>>> >>>>Please indicate Your result. >>>> >>>>Leonid. >>>> >>> >>>Dell Axim Pocket 400 WM 2003 ROM 05 16 MB hash Oc to 472 Mhz >>>Pocket Chess Genius 1.5 >>> >>>Mate-in-8 in 52 seconds (I think it may be shorter) >> >>I just don't know what will be the shortest one and expected that somebody will >>find it. My program solved this position only by selective search, like Your in >>8 moves. By brute force I verified only 5 moves and found that it is no mate >>there. To go deeper could be expensive with my program that use no hash. >> >>Leonid. >There are 5 mate-in-7. > > >New game >1R2NnqN/3pPpQ1/b3nPpp/K2R2bk/4pPrr/6Pp/4B2P/3N4 w - - 0 1 > >Analysis by ChestUCI Ver.2.3: > >1.Kxa6 Nc7+ 2.Nxc7 Qxg7 3.fxg7 Ne6 4.Nxe6 dxe6 5.Rxg5+ hxg5 6.Nxf7 e3 7.Rh8# > +- (#7) Depth: 7 00:00:00 >1.exf8Q Qxf8 2.Rxg5+ hxg5 3.Qh7+ Qh6 4.Ng7+ Nxg7 5.Qxh6+ Kxh6 6.Nxf7+ Kh5 7.Rh8# > +- (#7) Depth: 7 00:00:00 >1.exf8Q Qxf8 2.Rxg5+ hxg5 3.Qh7+ Qh6 4.Ng7+ Nxg7 5.Qxh6+ Kxh6 6.Nxf7+ Kh5 7.Rh8# > +- (#7) Depth: 7 00:00:00 >1.Ne3 Bxe2 2.exf8Q Qxf8 3.Qxf8 Rxg3 4.hxg3 Bg4 5.Rxg5+ hxg5 6.Nxf7 d5 7.Qh6# > +- (#7) Depth: 7 00:00:00 >1.Ne3 Bxe2 2.exf8Q Qxf8 3.Qxf8 Rxg3 4.hxg3 Bg4 5.Rxg5+ hxg5 6.Nxf7 d5 7.Qh6# > +- (#7) Depth: 7 00:00:00 > >(Byrne, Secane, PA USA 18.10.2003) I misread the output -- looks like 3 "mate in 7's" ,two of them are dupes
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