Author: leonid
Date: 06:58:18 07/21/02
Go up one level in this thread
On July 20, 2002 at 16:43:52, John Merlino wrote: >On July 20, 2002 at 00:03:49, leonid wrote: > >>Hi, >> >>This mate is, probably, easy: >> >>[D]Bn4bb/1PqPQnP1/2Prrq2/2KPBk2/2NRRq2/1PNqqQq1/1q4R1/q6q w - - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >Chessmaster 9000, on a PIII-600, announces Mate in 11 in 35 seconds. It does not >find a shorter mate in under five minutes: This is very good hit! Very often I see that Chessmaster do well with selective search. Under different parameters (I don't know if move is the same), on identical computer (Celeron 600Mhz, no hash, LLchess) mine found mate in 11 moves in 24 sec, 51 sec and 48 sec. This is what I see on description of position with the time of each solution. I speak only about selective search, since brute force will take much more time. Mine looked only 10 moves by brute force to be sure that it is mate in 11. Search in 10 moves took already 27 min and 19 sec. Cheers, Leonid. >Time Depth Score Positions Moves >0:00 1/3 -23.68 31285 1.Qxf6+ Rxf6 2.Rxf4+ Kg6 3.Rxg3+ > Kh7 4.Qxh1+ Qxh1 5.gxh8=R+ Kxh8 > 6.Rxe3 Na6+ 7.Kb5 Qbxc3 >0:01 1/3 -7.04 59822 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Ng5 4.Qexf6+ Rxf6 5.Qxf6+ Kh5 6.Rxg5+ > Qxg5 7.gxh8=Q+ Qh7 8.Bxc7 >0:03 1/4 -5.28 113963 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Ng5 4.Qexf6+ Rxf6 5.Qxf6+ Kh5 6.gxh8=Q+ > Bh7 7.Bxc7 Qxg3 8.d8=Q Qbxc3 >0:11 1/5 -1.16 513964 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Qg5 4.Rxg5+ Nxg5 5.Qfxf6+ Rxf6 > 6.Qxf6+ Kh5 7.gxh8=Q+ Qh7 8.Bxc7 >0:35 1/6 Mate11 1684003 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Ng5 4.Rxg5+ Qxg5 5.Qxd3+ Kh5 6.gxh8=Q+ > Qh6 7.Qe8+ Bf7 8.Qxh6+ Kxh6 9.Qh8+ > Kg5 10.Qg3+ Kf5 11.Qg4# >1:29 1/7 Mate11 4095371 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Ng5 4.Rxg5+ Qxg5 5.Qxd3+ Kh5 6.gxh8=Q+ > Qh6 7.Qe8+ Bf7 8.Qxh6+ Kxh6 9.Qh8+ > Kg5 10.Qg3+ Kf5 11.Qg4# >3:45 1/8 Mate11 10455479 1.Rxf4+ Kg6 2.Rxf6+ Rxf6 3.Rxg3+ > Ng5 4.Rxg5+ Qxg5 5.Qxd3+ Kh5 6.gxh8=Q+ > Qh6 7.Qe8+ Bf7 8.Qxh6+ Kxh6 9.Qh8+ > Kg5 10.Qg3+ Kf5 11.Qg4# > >jm
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