Author: Vincent Diepeveen
Date: 05:22:06 08/21/02
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On August 21, 2002 at 08:13:47, emerson tan wrote: >wHATA IS DEEP BLUES AVERAGE PLY LEVEL ON TOURNAMENT TIME CONTROL, I UNDERSTAND >THAT IT CALCULATES 200 MILLION POSITIONS PER SECOND BUT NEVER HEARD OF ITS >AVERAGE PLY. THANKS they estimate it at 126 million nodes a seconda gainst deep blue. It had a nominal search depth (depth limit) of 12 ply. With a lot of tactical extensions a lot of lines were searched at 17 ply though. that's however true for all chess programs. I averaged in DIEP way deeper. It depends basically whether you count hashtable cutoffs with the depth or not. I tend to not count them. In hardware there was not a hashtable. Average search depth says nothing. The nominal search depth is more important. This was 12 ply. So the weakest link were lines of 12 ply simply. Best regards, Vincent
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