Author: Heiner Marxen
Date: 04:44:34 07/05/01
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On June 30, 2001 at 06:47:19, leonid wrote: >Hi! > >If you are in mood to solve some mate position, look into this: > >[D]Q2nkn1q/1Q1rr1q1/2QQqq2/b2Qq2b/2NqQN2/2q2Q2/1q1BB1Q1/q2RKR1Q w - - > >Please indicate your result. Hi Leonid, as you said yourself in some followup: this is a mate in 9. According to Chest there are 3 solution moves. Here are the respective PVs: PV: Qfxh5+ Qhxh5 Bxh5+ Qff7 Bxf7+ Qgxf7 Qdxd7+ Rxd7 Qcxd7+ Qexd7 Nd6+ Ke7 Qh4+ Qf6 Ng6+ Nxg6 Qxf6# PV: Qcxd7+ Qxd7 Qhxh5+ Qff7 Qhxf7+ Qxf7 Qdxd7+ Rxd7 Nd6+ Ke7 Ng6+ Qxg6 Qg5+ Qgf6 Qgxf6+ Qxf6 Qxf6# PV: Qbxd7+ Qxd7 Qhxh5+ Qhxh5 Qxh5+ Rf7 Qdxd7+ Nxd7 Qcxd7+ Kf8 Ng6+ Qfxg6 Rxf7+ Q6xf7 Qhxf7+ Qxf7 Q5xf7# That needed 21.3 minutes on an Athlon/600, using 350 MB hash. The home page of Chest is: http://www.drb.insel.de/~heiner/Chess/chest.html Heiner
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