Author: Paul
Date: 13:09:10 09/27/01
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On September 27, 2001 at 15:14:39, leonid wrote: >Hi! > >The next position is easily solvable for white and for black side. Even if you >will look for solution by brute force it could not very slow. > >[D]2rqqr2/R1q2k1B/1B1qn1N1/p1Q2N1p/Qb1RR1qQ/1Kp2nQ1/2QpbP2/3QN3 w - - > >Please indicate your result. > >Thanks, >Leonid. Hi Leonid! Pretz says White mates in 9, it takes longer than I thought on my 1GHz P3 though, a full 16 seconds: 00:16 WM9 06 Nh8+ Rxh8 Nxd6+ Kg7 Rxg4+ Neg5 Rxg5+ Nxg5 Qcxg5+ Qxg5 Qhxg5+ Qg6 Qgxg6+ Kf8 Qae8+ Rxe8 Qxe8# With Black it's a lot easier, a mate in 8 in 1 second: 00:01 BM8 08 Qxa4+ Kxa4 Nxc5+ Bxc5 Bb5+ Kxb5 Nxd4+ Nxd4 Qxc5+ Ka4 Qdd7+ Nb5 Qcxb5+ Kb3 Qa4# This is all done with a selective nullmove search. Best wishes to you and your family, Paul
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