Author: John Merlino
Date: 17:06:08 12/11/02
Go up one level in this thread
On December 11, 2002 at 18:37:32, Art Basham wrote: >White mates in about 7 or 8 .... > >See if you can find the correct first move here >*before* you "ask your computer"...:-) > >Some engines have trouble with the first move on this one! > >RxQ...No! > >[D]5k2/3qR3/1p1r4/p2p4/3P3Q/3B3P/P4PP1/6K1 w - - 0 1 CM9000 finds Bg6 in less than one second, announcing Mate in 8. And, after 1.Rxd7 Rxd7, it is apparently a Mate in 15, which CM9000, on a P3-733, announces in 4:43 (after announcing Mate in 16 after 2:03): Time Depth Score Positions Moves 0:00 1/3 13.40 2280 2.Qh6+ Kf7 3.Qxb6 a4 4.Qh6 0:00 1/4 13.46 9049 2.Qh6+ Ke7 3.Qxb6 a4 4.Qb4+ Kf6 5.Qxa4 0:00 1/4 15.86 12217 2.Qf6+ Rf7 3.Qh8+ Ke7 4.Bg6 a4 5.Qe5+ Kf8 6.Bxf7 Kxf7 7.Qxd5+ Kg7 0:00 1/4 17.41 13937 2.Qh8+ Ke7 3.Bb5 Ra7 4.Qg7+ Ke6 5.Qxa7 0:00 1/5 17.62 19851 2.Qh8+ Ke7 3.Bf5 Rb7 4.Qg7+ Kd6 5.Qe5+ Kc6 6.Qe8+ Kc7 7.Qc8+ Kd6 8.Qxb7 0:00 1/6 18.74 65505 2.Qh8+ Ke7 3.Bb5 Kf7 4.Bxd7 Ke7 5.Qe8+ Kf6 6.Qe5+ Kf7 7.Qxd5+ Kg7 0:01 1/7 19.05 97376 2.Qh8+ Ke7 3.Bb5 Kf7 4.Bxd7 Ke7 5.Bc6 Kf7 6.Qh5+ Kf8 7.Bxd5 0:03 2/8 19.98 288483 2.Qh8+ Ke7 3.Bb5 Ke6 4.Qe5+ Kf7 5.Qf5+ Ke7 6.Qxd7+ Kf8 7.Qd6+ Kg7 8.Qxb6 Kf8 9.Qd6+ Kg7 10.Qxd5 0:17 3/9 20.07 1759188 2.Qh8+ Ke7 3.Bb5 Ra7 4.Qg7+ Ke6 5.Qxa7 Kf6 6.Qxb6+ Kf7 7.Qb7+ Ke6 8.Qc6+ Kf7 9.Qxd5+ Kg7 1:13 4/10 21.28 7403358 2.Qh8+ Ke7 3.Bf5 Kd6 4.Qe8 Re7 5.Qd8+ Kc6 6.Qxe7 Kb5 7.Bd3+ Ka4 8.Bc2+ Kb5 9.a4+ Kc6 10.Bf5 b5 11.Qd7+ Kb6 12.Qxb5+ Kc7 13.Qxa5+ Kb8 14.Qxd5 2:03 4/10 Mate16 12591642 2.Qh6+ Rg7 3.Qd6+ Kf7 4.Qxd5+ Ke7 5.Qe5+ Kf8 6.Qb8+ Kf7 7.Qc7+ Kf8 8.Qd8+ Kf7 9.Bc4+ Kg6 10.f4 Rc7 11.Qg5+ Kh7 12.Qg8+ Kh6 13.Qf8+ Rg7 14.Qf6+ Kh7 15.Qh4+ Kg6 16.Qg5+ Kh7 17.Qh5# 4:43 5/11 Mate15 30444219 2.Qh6+ Rg7 3.Qd6+ Kf7 4.Qxd5+ Ke7 5.Qe5+ Kf8 6.Qb8+ Ke7 7.Qc7+ Kf8 8.Qd8+ Kf7 9.Bc4+ Kg6 10.f4 Rc7 11.Qg5+ Kh7 12.Qg8+ Kh6 13.Qf8+ Rg7 14.Bd3 a4 15.Qh8+ Rh7 16.Qxh7# jm
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