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

Author: John Merlino

Date: 22:20:31 05/04/04

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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

Not sure...yet. After forcing 1.e4 Qg5, it takes CM_SKR 1:22 to announce a Mate
in 12.

Time	Depth	Score	Positions	Moves
1:22	1/12	Mate12	23507783	2.d4 Qg6 3.Qf3 Kd7 4.Nc3 Qe6 5.Bb5+
					Kc7 6.Qf8 Kb7 7.Bf4 Qc8 8.Qe7+
					Kb6 9.Nd5+ Kxb5 10.Qb4+ Kc6 11.Qb6+
					Kd7 12.Qd6+ Ke8 13.Qe7#
1:30	2/13	Mate12	26233063	2.d4 Qg6 3.Qf3 Ke7 4.Nc3 Qf7 5.Bg5+
					Kf8 6.Bh6+ Ke7 7.Nd5+ Qxd5 8.exd5
					Kd6 9.Qf6+ Kd7 10.Qc6+ Ke7 11.Qc7+
					Kf6 12.Qg7+ Kf5 13.Bd3#

However, from the initial position, after more than 10 minutes there was still
no mate found, and 1.e3? Kd7? was considered best. I'll let it run overnight....

jm



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