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Subject: ELO Gain from Tablebases (2nd Hundred)

Author: James T. Walker

Date: 09:41:44 03/22/99


Last night I ran the 2nd 100 games at game/5 minutes between Crafty 16.5 with
and without tabelbases in an attempt to determine the value of the tabelbases.
It is almost like an instant replay. 2nd 100 games score:

First 50  Crafty w/tb +16 =20 -14  = 26 to 24
Second 50   ""    "   +13 =21 -16  = 23.5 to 26.5
Second 100 games  "        Total   = 49.5 to 50.5
Total for 200 games Crafty with tb =100.5 to 99.5

I only have the 3/4 man tablebases and about 6 of the 5 man tabelbases.  Most
notably absent is the KRPKR tablebases.  I can't generate them on my computer
and AOL will not leave me alone long enough to download them.  [:-)
So far it looks like the tablebases are useless !?  I can't believe this though.
 I really love to see a program announce "mate in 21" when playing 5 minute
blitz !  Even if that is the only value I get out of the tablebases I still
think they are worth while.  I will play a couple hundred more but it looks like
the advantage is minimal without the KRPKR tablebase which I believe will yield
the most advantage.
Jim Walker



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