Author: Mike Byrne
Date: 17:55:32 01/11/04
Go up one level in this thread
On January 11, 2004 at 17:55:11, Uri Blass wrote:
>On January 11, 2004 at 16:52:09, Robert Hyatt wrote:
>
>>On January 11, 2004 at 15:47:04, Uri Blass wrote:
>>
>>>I do not see a word about promotions in swap.c of Crafty but maybe there is
>>>something that I do not understand.
>>>
>>>Uri
>>
>>Swap() will only find capture promotions. It really doesn't do anything
>>with them, because the value is a pawn, not a queen, and the normal Swap()
>>code handles that just fine. IE if you treat it as simply dxe8, that is
>>good enough, you are winning a piece. If your opponent re-captures, he
>>only gets a pawn, not the queen you promoted to...
>
>If the pawn is pinned you may need to capture with something else.
>
>[D]rn6/P7/K7/8/8/6k1/1Q6/8 w - - 0 1
>
>If I understand correctly
>SEE of Crafty is going to consider QxN as a bad capture.
>
>Uri
sd=1
Black(1): rn6/P7/K7/8/8/6k1/1Q6/8 w - - 0 1
White(1): go
end-game phase
clearing hash tables
time surplus 29.75 time limit 22.87 (3:33)
time surplus 29.75 time limit 22.87 (3:33)
depth time score variation (1)
1 0.00 11.45 1. Qxb8+ Rxb8 2. axb8=Q+
1-> 0.00 11.45 1. Qxb8+ Rxb8 2. axb8=Q+
time=0.00 cpu=100% mat=2 n=39 fh=100% nps=10K
ext-> chk=1 cap=0 pp=0 1rep=0 mate=0
predicted=1 nodes=39 evals=11
endgame tablebase-> probes=0 hits=0
SMP-> split=1 stop=0 data=1/64 cpu=0.00 elap=0.00
White(1): Qxb8+
time used: 0.00
Black(1):
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