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Subject: Re: Mate in 20....?

Author: Dieter Buerssner

Date: 16:56:48 06/25/02

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On June 25, 2002 at 19:44:39, Art Basham wrote:

>After 3 or 4 min, In this position, the Fritz 7 program  ann. a mate in 20...!
>Beginning with QXN, etc.
>
>[D]4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - -
>
>1. QXN also make a good test move for engines to find...

This is WAC position 141, one of the most difficult ones of WAC. It is a mate in
6. Depending on pruning/extension tuning, I have seen my engine show the mate in
10 seconds and in some minutes. I guess some engines on fast hardware will find
it in a second or so.

1. Qxf4 Be7 2. Rxh5 Bxf6 3. Qxf6 gxh5 4. Rxh5 Qg3+ 5. Kxg3 Re5 6. Rh8#

Regards,
Dieter



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