Author: Christophe Theron
Date: 11:06:55 03/08/00
Go up one level in this thread
On March 08, 2000 at 09:20:23, Wayne Lowrance wrote:
>On March 08, 2000 at 03:59:35, Shep wrote:
>
>>On March 08, 2000 at 00:39:10, Wayne Lowrance wrote:
>>
>>>Christophe in one of your earlier posts you said optimum value for "score for
>>>draw = .1" is that source code statement, if so where is it found ?
>>>
>>>Another earlier post listed a improvement CT improvement by "contempt value=
>>>-30. (sounds like a lot).
>>
>>This is in centipawns, so it's actually "-0.30".
>>
>>---
>>Shep
>
>Thank u
>Wayne
To make it a little more clear: I think the optimal value is -0.10, so in the
engine properties page you have to type "-10", because the value in this page is
in centipawns (which is not obvious I agree).
You go to Extra->Options->Advanced, and in the "contempt factor" box you type
-10.
The wording "contempt factor" is not very good actually. The value you type in
this box is the value for a draw, which is the opposite of the classical
"contempt factor". By typing -10 there, you tell Tiger that taking a draw is not
very good. So if Tiger has the choice, it would better go for a -0.09 position
instead of taking the draw by repetition (or by 50 moves rule).
Christophe
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