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Subject: Crafty 16.6 is getting serious !

Author: James T. Walker

Date: 13:32:18 04/07/99


For anyone interested in Crafty engines.  The Crafty 16.6 has now played 58
games against Fritz 5.32 and Junior 5.0.  The score stands as:

Junior 5.0 wins 16 to 14
Fritz 5.32 wins 16 to 12

This may not be "Stastically significant" but it's heading in that direction.
These games were played at game/60.  Crafty used a Pentium II 333 Mhz/128 meg
and Fritz/Junior used a K6-2/350 Mhz with 128/64 meg hash tables.  Most games
were played with Crafty using 96 meg hash,8 meg hasp,10 meg cache.  Fritz used
128 meg hash and Fritz used 128 meg with a few games with only 64 meg hash.

I have also played a large number of games at game/10.  Crafty is not as
impressive at this time control but has given Junior 5 a hard time.  Scores:
Crafty 16.6 wins  Comet B00     60.5 to 39.5
Junior 5.0 wins Crafty 16.6     71.5 to 62.5
Nimzo 99 wins  Crafty 16.6       52 to 30
Fritz 5.32 wins Crafty 16.6      93 to 39
This indicates that Crafty is only 25 points behind Junior but 150 points behind
Fritz.  I wish Bob were here to explain why Crafty now plays Junior 5.0 so good
now but no improvement shown with games against Nimzo/Fritz(At Blitz).  The
game/60 results indicate Crafty may play better at the long time controls and
should have a chance at time controls closer to tournament conditions.
Also I am wondering if this indicates a change in Bob's approach of tuning
Crafty to play better comp. vs comp. games vice Crafty vs humans which has
seemingly been his goal in the past.  Any comments on the above info ??
Jim Walker

P.S. I wish Bob was here.



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