Author: leonid
Date: 12:36:06 01/31/01
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On January 31, 2001 at 15:27:00, John Merlino wrote: >On January 31, 2001 at 13:28:30, leonid wrote: > >>Hi! >> >>If you like to solve forced mate, here is the position. >> >>[D]2Q1N1qq/rQ2NPnP/r3qpqk/1Rb1n1qp/3N1nb1/1q1Q1B1R/2QB4/2R1K2R w - - >> >>Please indicate your result... even if your program failed. >> >>Thanks, >>Leonid. > >Chessmaster 8000 sees Mate in 12 in 16 seconds: > >Time Depth Score Positions Moves >0:04 1/3 22.06 90905 1. hxg8=N+ Qxg8 2. Nxg8+ Kh7 3. > Nexf6+ Qexf6 4. Nxf6+ Qxf6 5. Qg8+ > Kh6 6. Qh8+ Kg5 7. Qxg6+ Qxg6 8. > Qxg6+ Kxg6 9. Rxb3 >0:16 1/4 Mate12 302855 1. hxg8=N+ Qxg8 2. Nxg8+ Kh7 3. > Nexf6+ Qexf6 4. Nxf6+ Qxf6 5. Qg8+ > Kh6 6. Qh8+ Kg5 7. Qxg6+ Qxg6 8. > Bxf4+ Kxf4 9. Qh6+ Qxh6 10. Qd2+ > Qe3+ 11. Qxe3+ Kxe3 12. Qe4# >1:32 2/5 Mate12 1635148 1. hxg8=N+ Qxg8 2. Nxg8+ Kh7 3. > Nexf6+ Qexf6 4. Nxf6+ Qxf6 5. Qg8+ > Kh6 6. Qh8+ Kg5 7. Qxg6+ Qxg6 8. > Bxf4+ Kxf4 9. Qh6+ Qxh6 10. Qd2+ > Qe3+ 11. Qxe3+ Kxe3 12. Qe4# > >jm I see that Chess Master is all the time good program for solving mates. I used Chess Master 4000 few years ago and it was all the time impecable. I don't know for now shortest moves, since I also found mate in 12 moves in 4 seconds. But I found mate by selective search. By brute force it can take hours. Leonid.
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