Computer Chess Club Archives




Subject: Re: Bratko-Kopec

Author: Ernst A. Heinz

Date: 09:41:43 01/18/98

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On January 18, 1998 at 11:11:08, Robert Hyatt wrote:

>On January 17, 1998 at 23:39:02, Bruce Moreland wrote:
>>I bet many of the programs tested by BK over the years would not have
>>played 2. Qh5+.  Here is this position:
>>rnbqkb1r/p3p1pp/1p2p3/2pp4/3N4/2P5/PPP1QPPP/R1B1KB1R w KQkq - 0 2
>>How long does it take your favorite program to find 2. Qh5+ here?
>about 45 seconds on the P6... but the score goes from .24 for
>Nex6 to .25 for Qh5+... :)

On a 500MHz DEC Alpha-21164a PC164 "DarkThought" finds Qh5+ after 13 sec
in iteration #10 with a fail-high that gets resolved to something like


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