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Subject: Re: What is the best positional test for chess programs ???? ANYBODY KNOW??

Author: blass uri

Date: 09:08:03 04/21/99

Go up one level in this thread



On April 21, 1999 at 10:09:52, blass uri wrote:

>
>On April 21, 1999 at 09:48:43, Harald Faber wrote:
>
>>On April 21, 1999 at 09:15:56, blass uri wrote:
>>
>>>>>I think that crafty16.6 may be the best program against humans and programs.
>>
>>>>MAYBE. Crafty made a big step forward!
>>
>>>>>It won 2.5:.5 against Rebel10C in 1 hour per move games and ed told us in the
>>>>>rebelboard that it had a won position in the 4rd game that was lost.
>>>>
>>>>You can't convince me with 2.5-1.5 results or so, give me more.
>>>
>>>It is probably 3.5:.5 because ed said that crafty was winning the 4th game.
>>>It is not a clear proof but I have not more games of crafty at slow time
>>>control.
>>
>>Even if it would go on that way it would only be proof that Crafty beats Rebel.
>>There would still remain the question how Crafty does against other opponents.
>>
>>>Ed will continue the games after WCCC and we will see.
>>>Uri
>>
>>It will take MUCH time...
>>A better Crafty auto232 support would result in more games to have a better
>>impression.
>>BTW are there any recommandations for an opening book for Crafty engine in
>>Fritz-GUI? The Fritz powerbook?
>>
>>And BTW choose your opponent for the Deep Thought-position, you didn't answer
>>yet. I'll try WChess and MCP as black, you choose the white player.
>>Genius or your favourite Junior? :-)
>
>I prefer Junior at long time control because Genius is a root processor and can
>changes it's evaluation after actions like trading queens.
>
>I think that in this tactical position it is better to play the first 10 moves
>at slower time control (at least 10 minutes per move) because it is important
>not to miss something tactical.
>
>I can tell you Junior5.4's and Genius3's moves with white at slow time
>control(at least 10 minutes per move.
>
>Junior follow the game and play a different move only when it choose Kd1 or Kf1
>instead of Kd2 when Genius3 choose 17.Ne4 Nf5 18.Nfg5 Bxc5 19.Qg4

I think that in this line after 19...Qe5 white can rsign

Junior5.4 shows 3.62 pawns advantage for black after the moves 19.Qg4 Qe5

Genius3 failed low at depth 9 in move 19 (the evaluation at depth 8 was -0.15
with the line Qg4 Qe5 Rb1 h6 Bb2 Bd4 Bxd4 Nxd4)

The main line of Junior5.4 after the moves Qg4 Qe5 is Rb1 h6 Qxf4 Bxf4 hxg5 Rb8
Rab8 Bxb8 Rxe4+ Kd1 Ne3+ Kd2 Nxd5 Bxd5 Rd4+ Kc3 Rxd5

Uri





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