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Subject: Re: If you like to solve a mate...

Author: Heiner Marxen

Date: 16:21:19 04/06/01

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On April 06, 2001 at 06:47:35, Paul wrote:

>On April 06, 2001 at 05:16:39, leonid wrote:
>
>>Hi!
>>
>>If you like to sove one easy mate, you can try this:
>>
>>[D]NK2Q3/1B4Q1/3Q2PB/1N3Q1q/1bQ4n/2nqqq1b/rQ2q1Qr/R1rqkqrR w - -
>>
>>I remember that when this position was created around one month ago, I found
>>that it is mate for  black and whites.
>>
>>Please indicate your results for both colors.
>>
>>Thanks,
>>Leonid.
>
>Hi Leonid!
>
>Although I haven't been able to work on my program for the last couple of
>months, just for the record this is what the "old" Pretz says:
>
>White to move: 01:17 WM10 08 Qgxc3+ Bxc3 Qcxc3+ Rxc3 Qxc3+ Rd2 Rxd1+ Qxd1 Qxe3+
>Qfxe3 Qfxf1+ Rxf1 Rxf1+ Qxf1 Qxe3+ Re2 Qxd1+ Kxd1 Qc1#, so a mate in 10.

Chest confirms this insofar, as there is no mate in 9 (K7/600 350MB, 47.4 min).


>Black to move: 00:01 BM7 05 Qxd6+ Qgc7 Qxe8+ Qc8 Qxc8+ Bxc8 Rxa8+ Rxa8 Qxb5+
>Qxb5 Qxc7+ Kxc7 Qd6#, so a mate in 7.

Chest confirms the above PV in 67 seconds.
Old Pretz appears to be the Old Surehand of mate problems!

Heiner

>Salut!
>Paul



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