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Subject: Re: For mate experts - how many moves?

Author: Vincent Lejeune

Date: 00:18:30 05/05/04

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On May 05, 2004 at 00:52:06, Jouni Uski wrote:

>[D]3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ -
>
>Mate solver Chest takes hours to finalize 10 moves so I switch to playing
>engines. Shredder 8 announces mate with d4 after 15 minutes, but it's useless
>when number of moves is not displayed :-) Some engines agree, that best line
>is e4 Qg5 d4 Qg6 and mate in 14. Is this the best? What thinks Chessmaster?
>
>Jouni

take a look at http://chessprogramming.org/cccsearch/ccc.php?art_id=302792

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Subject : Valentin Albillo unsolved #1 : SOLVED !!

Posted by : Vincent Lejeune on June 24, 2003 at 12:32:06

3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w

CM9000 found the mate !!!
Celeron@875Mhz, 64 MB hash, SS=12

Time Depth Score Positions Moves
1:53:34 1/16 Mate12 1010138257 1.e4 Qd4 2.Bb5+ Ke7 3.Qg4 Qe5 4.Qd7+
Kf8 5.d4 Qxe4+ 6.Ne2 Qe7 7.Bh6+
Kf7 8.Bc4+ Kg6 9.Qxe7 Kxh6 10.Bd3
Kh5 11.f4 Kg4 12.Qg5#
2:37:19 2/17 Mate12 1427960663 1.e4 Qd4 2.Bb5+ Ke7 3.Qg4 Qe5 4.Qd7+
Kf8 5.d4 Qxe4+ 6.Ne2 Qe7 7.Bh6+
Kf7 8.Bc4+ Kg6 9.Qxe7 Kxh6 10.Bd3
Kh5 11.f4 Kg4 12.Qg5#
13:14:57 3/18 Mate11 -898402141 1.e4 Qd4 2.Qg4 Ke7 3.Nf3 Qd6 4.d4
Kd8 5.Bb5 Kc7 6.Bf4 Kb6 7.Bxd6
Kxb5 8.Qc8 Kb6 9.Na3 Ka5 10.b4+
Kb6 11.Bc5#
17:12:32 4/19 Mate11 1533143766 1.e4 Qd4 2.Qg4 Ke7 3.Nf3 Qd6 4.d4
Kd8 5.Bb5 Kc7 6.Bf4 Kb6 7.Bxd6
Kxb5 8.Qd7+ Ka6 9.Nc3 Kb6 10.Bc5+
Ka6 11.Qa7# SS=12

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