Wednesday, October 12, 2005

Fruit Chess Engine

The Fruit 2.2 chess engine has a unique playing style making it a good addition to any chess engine collection. The older version 2.1 of Fruit is already second in several rating lists. Fruit 2.2 is about 70-100 Elo-points stronger than version 2.1 and is right now probably the strongest chess engine in the world on a standard single-processor PC.

After the success of Fruit in the World Chess Computer Championship 2005 in Reykjavik some people called Fruit a "sceptical program" in the sense that it does not "believe" in dynamic advantages which are in fact not there. This was especially visible in the games against Junior and Shredder where Fruit refuted an (unsound) attack and went on to win. It is certainly true Fruit does not play speculative or unsound attacks but one can hardly describe the playing style of Fruit "sceptical". Fruit can definitely go to attacking mode if necessary as demonstrated in its game against The Baron in WCCC 05, but it will also play a fine positional maneuvering like in the game against Jonny if necessary.

Fruit 2.2 is not free, however Fruit 2.1 is available for free download.

Has anyone here, tried out a match between the Fritz 8 and Fruit 2.2 or 2.1 chess engines, on Fritz?
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