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Subject: Re: If you would like to solve a mate... or two ...

Author: Paul

Date: 07:38:06 04/17/01

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On April 17, 2001 at 07:51:59, Heiner Marxen wrote:

>On April 10, 2001 at 08:37:48, Paul wrote:
>
>>On April 10, 2001 at 07:25:57, leonid wrote:
>>
>>>Hello!
>>>
>>>If you would like to crush some mate, where solution is not that far but
>>>resistance is visible, then you can solve this position:
>>>
>>>2Qr1bqN/R3P1Rq/1p1q1q2/1Q4qk/q2QQr1n/1Q4r1/3BNqbQ/1B1K4 w - -
>>>
>>>Please indicate your result.
>>>
>>>If your program is shareware, it will be handy if you will indicate address of
>>>your program on the Web.
>>>
>>>Thanks,
>>>Leonid.
>>
>>Hi guys!
>>
>>Phhfffeewww! PretzOld found a mate in 8 ... but for 8 moves it took a long time:
>>
>>01:14 WM8 07 e8=Q+ Rxe8 Nxg3+ Qxg3 Qcxe8+ Qff7 Qxf7+ Qxf7 Qxh7+ Qh6 Qxh6+ Kxh6
>>Rh7+ Qxh7 Rxh7#
>>
>>Another, slightly different line: e8=Q+ Rxe8 Nxf4+ Q2xf4 Qcxe8+ Qff7 Qxh7+ Qxh7
>>Rxh7+ Bh6 Qxf7+ Qg6 Bxg6+ Kg4 Qxg3#
>>
>>Here's a nice (normal ;)) mate in 10 in return for you from the German CSS forum
>>...
>>
>>[D]2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - -
>>
>>Ciao,
>>Paul
>
>Hi Paul,
>
>To find that "there is no mate in 7" Chest already needs already over 1300 secs,
>with an effective branching factor over 10.  Therefore I stop this one here.
>The mate in 10 could need 1000 fold that time (for Chest).
>
>Heiner

Ha! Gotcha! Ok, just kidding ofcourse ... this is a 'normal' Stellung, so easily
solvable with a 'normal' program like Pretz, 2 seconds ... ;)

Groetjes,
Paul



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