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Subject: Strongest Palm program? ChessGenius 2.0 w/ native ARM and hash tables!!

Author: Michael Conway

Date: 17:20:29 11/30/03


ChessGenius 2.0 has native ARM code for its engine and allows hash tables up to
8MB.  On my Palm Tungsten C (400 MHz) with ARM selected, it calculates
approximately 65,000 positions per second!  This is in contrast to around 2,000
positions without using ARM - an increase of over 30x!!  (These are based on the
positions counter in ChessGenius - new in v2.0).  Chess Tiger 15.1 on the other
hand calculates around 1,500 positions per second.

As a quick test I played four 15 0 games between the two engines using ARM and
8MB hash table for ChessGenius 2.0 and the standard engine with 12MB hash table
for Chess Tiger 15.1.

ChessGenius 2.0 won all four games.  One game was a dead drawn position
(opposite color bishops with ChessGenius up a pawn) but Chess Tiger in a time
crunch played poorly at the end and lost.  The other three games were resounding
defeats.

Needless to say, the addition of hash tables to ChessGenius (along with its much
stronger engine) helps it play MUCH better in the endgame than it used to.

I plan to play additional 15 0 games (maybe a total of 20) between to two
engines.  When I'm done, if there's any interest, I'll post the PGNs.

It's time for Christophe to write native ARM code for Chess Tiger because for
now, he can no longer claim "Chess Tiger for Palm is the strongest chess program
for the Palm organizers".



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