Engine Download Page
What is an engine?
A chess engine is the "artificial intelligence" that decides what move to make next.
Why download multiple engines?
Each engine has a different playing style.
Some are aggressive, some are defensive.
Some are strong, some are weak.
When you get bored with one
engine download another engine—it is like playing with a new
partner.
List of top engines
Chess Engine Ratings
Free engines
Stockfish — one of
the most powerful chess engines
Spike
Commercial engines
Rybka — the most powerful chess engine on the planet
Deep Sjeng