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Subject: Re: Does any Program Play Rd3?

Author: Uri Blass

Date: 02:02:14 12/08/04

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On December 08, 2004 at 04:28:41, Uri Blass wrote:

>On December 08, 2004 at 01:18:40, Vincent Diepeveen wrote:
><snipped>
>>To prove Rac8 is equal to Rd3 you must prove that after Rc8 you manage to
>>advance with black. And i just don't see it happen that you can prove that.
>>
>>After Rac8 black can only shuffle and hope his extra pawn wins the game (which
>>it undoubtfully will manage in a computerish way after 90 moves).
>>
>>After Rd3 you are home with a full point before first time control.
>
>How many moves do you need to convince top programs to show at least +2 for
>black if you play Rd3 against them?
>
>Movei like Rac8 after some minutes of search
>
>depth=14 +0.84 a8c8 g3f2 f6g5 c1c2 g8h8 h2h4 g5f6 f1c1 f6e7 c2d2 a6a5 b4a5 c7a5
>d2d8 c8d8
>Nodes: 177716646 NPS: 536082
>Time: 00:05:31.51
>
>I will try to see if it can see a bigger score for black after Rd3 Nd4
>
>score at depth 14 is only 0.55 pawns for black after these moves
>
>depth=14 +0.55 a8c8 d4c6 b7c6 c1c5 c7d8 b2b1 d3d2 f1c1 d8d3 g3e5 f6e5 c5e5 d3e2
>c1g1 g8h8
>Nodes: 71445489 NPS: 566084
>Time: 00:02:06.21
>
>Uri

Nothing convincing for black.

depth=16 +0.64 a8c8 d4c6 b7c6 b2c2 c7d8 b3d5 d3d4 d5c6 d4c4 c2e2 c8c6 c1c4 b5c4
f1d1 c6d6 d1c1 d6d3
Nodes: 1004111540 NPS: 563825
Time: 00:29:40.89



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