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Subject: Re: Chess Tiger - Crafty 18.1 14.5 - 5.5

Author: Hermano Ecuadoriano

Date: 15:51:00 01/24/01

Go up one level in this thread


On January 24, 2001 at 16:26:23, Robert Hyatt wrote:

>On January 24, 2001 at 15:37:40, Hermano Ecuadoriano wrote:
>
>>On January 24, 2001 at 14:25:39, Richard Heldmann wrote:
>>
>>>ERT.04
>>>Pentium 200MMX 64mb RAM Windows 98
>>>Crafty 18.1 8mb hash
>>>Chess Tiger 8mb hash
>>>
>>>                      12345678901234567890
>>>1   Chess Tiger 13.0  1½1011½111½11½01½½½1 14.5/20
>>>2   Crafty v18.1      0½0100½000½00½10½½½0  5.5/20
>>>
>>>PGN available on request.
>>
>>Thanks.
>>My testing shows Tiger13 better than Gambit Tiger against Crafty.
>>My testing also shows that their scores against Crafty improve with
>>slower time controls, and your data here support that. I have
>>Tiger13 +13 -6 =14 against Crafty 18.1 on a PII-300 at 5 3, and other
>>results.
>>
>>I think that with larger sample sizes, it could be proven that the Tigers
>>are relatively better against Crafty with slower time controls, or equivalently,
>>on faster hardware.
>>Christophe Theron "himself" doesn't believe this has ever been proven.
>>
>>Here's one quick experiment: On your 200Mhz machine, at a time control of
>>5 3 or faster, Gambit Tiger might lose to Crafty. It scored +12 -12 =7 on
>>mine.
>
>
>I can tell you absolutely that your data is flawed.  Crafty is _absolutely_
>weaker at blitz than it is at longer time controls.  And this is based on
>_thousands_ of test games, not on a few dozen.  The things I do in my search
>rely on fast hardware, or else long time controls.  The faster the game, the
>worse Crafty will do as its simple q-search will get it into trouble faster
>since null-move failures happen more often at reduced depth...

O.K. I'll look again and report later.



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