Author: Tord Romstad
Date: 03:38:30 08/25/05
Go up one level in this thread
On August 25, 2005 at 00:08:54, Vegadapirate wrote: >White to move and mate in 18 actually white wins in next 17 moves here is the >position >[D] 3b3K/pp4rP/8/4Ppp1/8/BB4P1/p3p2p/1N5k w - - 0 1 > >start your engines This one is quite easy for programs which use single reply extensions. Glaurung Mainz on an iMac G5 1.8 GHz finds the mate in 22 seconds: 2 -503 1 1854 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Bd4 3 -329 3 5860 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Kxg7 h1=Q Bxh1 a1=Q h8=Q Qxe5+ Kg8 Qxh8+ Kxh8 Kxd2 4 -329 5 10683 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Kxg7 h1=Q Bxh1 a1=Q h8=Q Qxe5+ Kg8 Qxh8+ Kxh8 Kxd2 5 -164 8 16511 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Kxg7 Kxd2 Bb4+ Ke3 Bxa2 6 -146 13 29308 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Kxg7 Kxd2 Bb4+ Ke3 Bxa2 h1=Q h8=Q Qxh8+ Kxh8 7 -146 27 64515 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Kxg7 Kxd2 Bb4+ Ke3 Bxa2 h1=Q h8=Q Qxh8+ Kxh8 8 +0 81 216386 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kg7 Rh7+ Kg8 9 +0 120 325419 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kg7 Rh7+ Kg8 10 +0 238 646236 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kg7 Rh7+ Kg8 11 +0 473 1298261 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kg7 Rh7+ Kg8 12 +0 990 2731289 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kg7 Rh7+ Kg8 13 +668 1296 3727786 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kf7 Rh7+ Ke8 Rh8+ Kd7 Rh7+ Kxd8 Rh8+ Kc7 Rh7+ Kb8 Rh8+ Kxa7 Ra8+ Kxa8 b5 14 +9965 2162 6480543 Bd5+ Kg1 Bc5+ Kf1 Nd2+ Ke1 Nf3+ Kd1 Bb3+ Kc1 Ba3+ Kb1 Nd2+ Ka1 Bc2 Rxh7+ Kg8 Rh8+ Kf7 Rh7+ Ke8 Rh8+ Kd7 Rh7+ Kxd8 Rh8+ Kc7 Rh7+ Kb8 Rh8+ Kxa7 Ra8+ Kxa8 b5 Nb3# Tord
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