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Subject: Re: How many programs can .. , another position maybe more interesting

Author: Jarkko Pesonen

Date: 03:08:45 05/06/03

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Crafty 19.3 ends up in this position
    white       black
  1  d5          e5
  2  c6+         bxc6
  3  bxc6+       Kc8
  4  d6          e4
  5  Kd4         h5
  6  g4          hxg4
  7  hxg4        f4
  8  Kxe4        ...

[D]2k5/8/2PP4/6p1/4KpP1/8/8/8 b

 21->   1:40   6.47   1. ... Kd8 2. Kd4 Kc8 3. Kd3 Kd8 4.
                     Ke4 Kc8 5. Kf3 Kd8 6. Kf2 Kc8 7. Ke2
                     Kd8 8. Kd3 Kc8 9. Kc3 Kd8 10. Kd2 Kc8
                     11. Ke1 f3

Seems that crafty isn't doing any progress and score is totally wrong :-(

Jarkko

On May 05, 2003 at 14:55:43, Peter Berger wrote:

>On May 05, 2003 at 09:09:12, Jorge Pichard wrote:
>
>>Some programs would select to move the king or 1....h5? which allow white to
>>penetrate, but 1....h6! would be the correct move by just sitting tight, and
>>there is no danger of Whites's king penetrating.
>>
>>8/1p2k2p/4p3/1PP2pp1/3P4/7P/5KP1/8 b - - 0 1
>
>A fascinating postion although I disagree with your explanation. This position
>is not so much about penetration itself but about getting a protected passer and
>avoiding one for your opponent which will bind the opposing king to this side of
>the board and free your own for said penetration. That's the reason why 1..h5 ??
>is so bad; it destroys the majority. Kd7 is just as good as h6 of course.
>
>It seems engines don't understand this motive at all.
>Try this one with your favourite program and let it search for a while:
>
>[D]8/1p1k4/4p2p/1PP2pp1/2KP4/7P/6P1/8 w - - 0 1
>
>This is a draw (I hope ;) ).
>Peter



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