Author: Charlie GOLD
Date: 06:11:08 04/16/00
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
Crafty analysed the position and showed # in one (Pf8-N #), BUT IT DID NOT
MAKE THE MOVE UNTIL I FORCED IT TO. The other machines made the move in less
than 5 seconds. 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....
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