Rating ELO: 2630
Crafty is a chess program written by UAB professor Dr. Robert Hyatt. It is directly derived from Cray Blitz, winner of the 1983 and 1986 World Computer Chess Championships.
Rating ELO: 2687
Zappa is a chess engine, or a program that plays chess. It is similar to Deep Blue – only much better – and is best known for its good parallel speedup and dead sexy author. It has competed in many computer chess tournaments with its best result coming at the World Computer Chess Championship in 2005, where it took first place with the score of 10.5 / 11. Like Fritz or Shredder, it is a standard chess engine, which in technical terms means it is a brute force alpha-beta searcher with a heuristical evaluation.
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Rating ELO: 2752
Alaric is a great choice for your everyday chess needs. Works especially great for long term deep analyzes.
Rating ELO: 2850
Strelka is a powerful chess engine which is good for everyday analyzes and normal play. Good thing is – it is free.
Rating ELO: 2863
At the World Computer Chess Championship in Reykjavík in 2005, Fruit scored 8.5 out of 11, finishing in second place behind Zappa.