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Subject: Re: If you like to solve one accessible mate...

Author: Heiner Marxen

Date: 09:32:37 02/24/01

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On February 24, 2001 at 08:55:41, leonid wrote:

>Hi!
>
>If you like to solve one mate that give some impression of tension but your
>program will solve more easely that you personally expect, try this one:
>
>[D]4bB2/n1NQq1b1/1Q2Q3/1q2Q1q1/rqn4R/kq2QQqQ/rnQn2R1/N1Qq1B1K w - -
>
>Please, indicate your result.
>
>Don't forget to mention your program and your hardware.
>
>Thanks,
>Leonid.

In 24 minutes on a K7/600 (350 MB hash) Chest finds 4 solutions in 7 moves:

Nxb5+  Nxb5  Qexb3+ Nxb3 Qcxb3+ Qbxb3 Bxe7+  Qxe7 Qexe7+ Nbd6 Qe7d6+ Nxd6 Rxa4#
Qcxb3+ Nxb3  Nxb5+  Nxb5 Qxb3+  Qbxb3 Bxe7+  Qxe7 Qexe7+ Nbd6 Qe7d6+ Nxd6 Rxa4#
Qexb3+ Nxb3  Nxb5+  Nxb5 Qcxb3+ Qbxb3 Bxe7+  Qxe7 Qexe7+ Nbd6 Qe7d6+ Nxd6 Rxa4#
Bxe7   Qgxe3 Qfxd1  Bg6  Qbxe3  Q5c5  Q2xb2+ Nxb2 Qdxb3+ Nxb3 Q6xb3+ Qxb3 Rxa4#

The last one is surprisingly "quiet".

Heiner



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