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Subject: Re: Draw against Crafty 18.10 after only 10 moves!?

Author: Uri Blass

Date: 11:40:05 06/25/01

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On June 25, 2001 at 11:47:52, Robert Hyatt wrote:

>On June 25, 2001 at 10:24:08, Eduard Nemeth wrote:
>
>>On June 25, 2001 at 10:11:20, Ralf Elvsén wrote:
>>
>>>On June 25, 2001 at 09:03:27, Eduard Nemeth wrote:
>>>
>>>>"Now" I played this curious game. Why this? ;-)
>>>>
>>>>Have fun. :)
>>>>
>>>>Nemeth,E - Crafty 18.10 (with trojan check) [B20]
>>>>Stufe=Blitz:10'.  Stuttgart, 25.06.2001
>>>>
>>>> 58MB, General.ctg. P600
>>>> 1.e4 c5 2.e5 Sc6  0.05/10  17  3.f4 d6  -0.01/11  16  4.Sf3 dxe5  0.00/9  14
>>>>5.fxe5 a6  0.08/9  13  6.Sc3 Dc7  0.00/9  16  7.Sd5 Dd8  0.00/10  10  8.Sc3 Dc7
>>>>0.00/10  29  9.Sd5 Dd8  0.00/11  12  10.Sc3 ½-½
>>>>
>>>>Endposition:
>>>>
>>>>[D]r1bqkbnr/1p2pppp/p1n5/2p1P3/8/2N2N2/PPPP2PP/R1BQKB1R b KQkq -
>>>>
>>>>
>>>>[Event "Blitz:10'"]
>>>>[Site "Stuttgart"]
>>>>[Date "2001.06.25"]
>>>>[Round "?"]
>>>>[White "Nemeth,Eduard"]
>>>>[Black "Crafty 18.10"]
>>>>[ECO "B20"]
>>>>[Result "1/2-1/2"]
>>>>
>>>>1. e4 {0} c5 {0} 2. e5 {4} Nc6 {0.05/10 17} 3. f4 {3} d6
>>>>{-0.01/11 17} 4. Nf3 {2} dxe5 {0.00/9 14} 5. fxe5 {2} a6
>>>>{0.08/9 14} 6. Nc3 {4} Qc7 {0.00/9 17} 7. Nd5 {4} Qd8
>>>>{0.00/10 11} 8. Nc3 {2} Qc7 {0.00/10 29} 9. Nd5 {2} Qd8
>>>>{0.00/11 12} 10. Nc3 {2} 1/2-1/2
>>>>
>>>>Eduard
>>>
>>>I guess you had the contempt factor set to zero. To make Crafty
>>>show you the contempt you deserve, set it to e.g. -20 or -30 :)
>>>(centipawns if I remember it right)
>>>
>>>Ralf
>>
>>Hi!
>>
>>Yes, what You say is right. But contempt for Crafty 18.10 is "standard"
>>on Zero. Why this??
>>
>>Eduard
>
>
>The main reason is SSDF testing and others playing comp vs comp matches.  If
>crafty doesn't know it is playing a computer, it won't know to set the contempt
>to 0.00 (which is what I _always_ use in comp vs comp games).  It is safer to
>set it to 0 as the default, and then tell humans to set it correctly.  And on
>a chess server it is dynamically set when xboard/winboard tells crafty the
>opponent's server rating...

Is there something wrong with using the rating of the opponent for the contempt
also when the opponent is a computer?

I think that you are not going to be happy with a draw against a computer
program when the program is weaker and Crafty plays against programs that are
clearly weaker then it because of hardware and software.

Uri



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