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Subject: Re: test position

Author: Stuart Cracraft

Date: 10:18:21 12/18/05

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On December 17, 2005 at 15:12:29, Stuart Cracraft wrote:

>On December 17, 2005 at 14:56:58, K. Burcham wrote:
>
>>
>>
>>Will your program play this 2700 GM move with a positive score for black?
>>
>>15...Nf3+
>> [D] r3k2r/1p3pb1/p1npp2p/q3nPp1/8/2P1N1BP/PP3PP1/R2QKB1R b KQkq - 0 15
>>
>>kburcham
>
>Not so far. Still sees itself as a pawn down.
>
>Evaluation rose between plies 7-10 but still -3/4 of a pawn.
>
>Alpha=-557 Beta=243 Maxdepth=9999999 MaxTime=1666666
>Itr/Max Mv   Time   Score Nodes PV
> 1/ 4  e6f5  0.00 -124       53 Pe6f5 Pd1d6
> 2/ 8  e8c8  0.02 -155     1096 Pe8c8 Pe3c4
> 3/11  a5b6  0.07 -160     6206 Pa5b6 Pf5e6 Pb6b2
> 4/12  a5b6  0.25 -159    26433 Pa5b6 Pa1b1 Pe8c8 Pf1e2 Pe6f5 Pe3f5
> 5/19  a5b6  0.77 -159    87284 Pa5b6 Pa1b1 Pe8c8 Pf1e2 Pe6f5 Pe3f5
> 6/19  a5b6  2.06 -159   231929 Pa5b6 Pa1b1 Pe8c8 Pf1e2 Pe6f5 Pe3f5 Pg7f8
> 7/23  a5b6 18.10 -162  1912035 Ta5b6 Ta1b1 Te8d7 Tf5e6 Tf7e6 Tf1e2 Tb6b2 Tb1b2
> 8/27  e5f3 75.95 -100  8606472 Te5f3 Te1e2 Tc6d4 Tc3d4 Tf3d4 Te2d3 Ta5b5 Te3c4
> 9/29  e5f3 123.64 -76 14238303 Pe5f3 Pd1f3 Pg7c3 Pe1d1 Pc3b2 Pf5e6 Pf7e6 Pa1b1
>Pa5a2 Pf3e4 Pe8d7 Pf1c4
>10/32  e5f3 265.06 -74 29868277 Pe5f3 Pd1f3 Pg7c3 Pe1d1 Pc3b2 Pf5e6 Pf7e6 Pa1b1
>Pa5a2 Pf3e4 Pc6e5 Pf1e2 Pe8c8
>11/..
>
>Stuart

I don't have access to the result right now but the 11th ply also completed
(eventually) and the program was very close to -100, about -95.

Are you citing a program that *does* provide a positive evaluation or
just fishing?

Stuart



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