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Subject: Re: Intelligent software, please (this example is only tactics if you

Author: Uri Blass

Date: 03:09:57 11/26/01

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On November 25, 2001 at 15:14:16, Victor Fernandez wrote:

>On November 25, 2001 at 13:37:09, Mike S. wrote:
>
>>The number of types of positions and ideas chess programs don't handle well, is
>>shrinking rapidly IMO. Do you have examples?
>
>Hi Mike !
>
>Yes, an example: an ending with few pieces .
>
>Kotov-Botvinnik
>
>8/8/4b1p1/2Bp3p/5P1P/1pK1Pk2/8/8 b - - 0 1
>
>The correct move is ...g5 !!! Few programs play this.
>
>Regards,
>
>  Victor

search the right lines)

only material yace version that I got from the programmer could prove that black
can win a bishop for a pawn.

It did not use the KB KPP tablabases but it used the KB vs KP tablebases
so I guess that the evaluation is not because of KB vs KP endgame
It used the following values(bishop=3.50,pawn=0.80)

New position
[D]8/8/4b1p1/2Bp3p/5P1P/1pK1Pk2/8/8 b - - 0 1

Analysis by Yace 0.99.56:

1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 1   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 2   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 3   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 4   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 5   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 6   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 7   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 8   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 9   00:00:00
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 14   00:00:00  5kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 14   00:00:00  5kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 14   00:00:00  5kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 14   00:00:00  5kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 14   00:00:00  5kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 15   00:00:02  1571kN
1...g5 2.fxg5 d4+ 3.exd4 Kg3 4.g6 Kxh4
  -+  (-2.70)   Depth: 16   00:00:06  4318kN

(Blass, Tel-aviv 26.11.2001)

Uri

• Re: Intelligent software, please (this example is only tactics if you Johan Melin 00:40:41 11/27/01
  • Re: Intelligent software, please (this example is only tactics if you Uri Blass 00:54:10 11/27/01

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