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Subject: Re: T2002 [60/120'] TheKing312X winner: Great report

Author: John Merlino

Date: 12:55:01 03/17/02

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Once again, a fabulous report and many thanks to everybody who was involved in
running this tournament. It was a joy to watch and was incredibly exciting as it
neared the finish.

One correction, though. In your report, you state:

------------------------
It must be emphasized that in all our tests and the 4500 games we have played at
40'/40, it was the original TheKing312 engine that has been used that means

TheKing 3.12
123 KB (125'952 Byte)
18th October 2000

and neither TheKing 3.12c [124 KB=126'976 Byte, 12th February 2001] nor TheKing
3.12d [124 KB=127'488 Byte, 5th July 2001]. We do not know whether this may be
of any significance regarding playing strength as the three versions should more
or less be identical. As far as we know, the orginal engine [18th October 2000]
does clear the hashtables after each move whereas the versions 3.12c and 3.12d
keep the hashtables in memory.
------------------------

This is not correct. The King 3.12c and 3.12d also clear their hashtables after
every move. However, they clear them much FASTER. This was in response to many
users who were using 32MB or even 64MB of hash table memory in blitz games
(obviously, useless). The original King 3.12 could take as long as 2 seconds to
clear a 64MB hash table (on a slower machine), which could really be a problem
in a blitz game (i.e. losing 2 seconds per move). So, Johan found a way to clear
the hash tables about 30 times faster in version 3.12c.

jm



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