Author: Mike Byrne
Date: 07:12:49 10/18/03
Go up one level in this thread
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)
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