Author: Robert Hyatt
Date: 14:53:55 04/15/00
Go up one level in this thread
On April 15, 2000 at 17:51:38, Robert Hyatt wrote:
>On April 15, 2000 at 13:14:30, Charlie GOLD wrote:
>
>>
>> What PC computers and, also, Dedicated computers underpromote for mate when
>>set at 40m/2h? Which ones do not underpromote?
>>
>> [D} 7n/3q1P1k/5K1p/3B4/8/8/8/8 w
>>
>> My results for some that u-p are: Rebel 9.0 - Yes, Genius 5.0 - yes, Fritz 4.0
>>and 6.0 - yes, CM 5K - yes; Some that do NOT u-p are: Junior 5.0 and 4.6(they
>>both find a mate in 4 by Be4+), Crafty 15.18(but when forced to move it goes
>>Pf8(N)#), Exchess 2.45. charlie
>
>
>I don't know what this means, because crafty will _definitely_ under-promote.
>In the search, it considers _all_ underpromotions. In the q-search, it only
>considers =Q....
Here is the output:
nss depth time score variation (1)
1 0.00 -5.04 1. f8=Q Qxd5
1 0.01 ++ 1. Be4+!!
1 0.01 Mate 1. f8=N#
1-> 0.02 Mate 1. f8=N#
2 0.02 Mate 1. f8=N#
2-> 0.03 Mate 1. f8=N#
3 0.03 Mate 1. f8=N#
3-> 0.04 Mate 1. f8=N#
4 0.04 Mate 1. f8=N#
4-> 0.05 Mate 1. f8=N#
time=0.05 cpu=40% mat=-9 n=390 fh=100% nps=10000
ext-> checks=25 recaps=0 pawns=0 1rep=3 thrt:0
predicted=0 nodes=390 evals=189
endgame tablebase-> probes done=0 successful=0
So I don't quite know what you meant by saying crafty doesn't...
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