Houdini 3 Aquarium - Chess Program Houdini 3 Aquarium is a revolutionary analysis, database and chess publishing tool, combined with the world's strongest chess playing engine, Houdini 3 Houdini 3 Aquarium offers advanced analysis functions Game commenting, searching, powerful chess trees, playing against the computer, databases, advanced publishing features and much more Houdini 3 Aquarium includes the best chess engine - Houdini 3 UCI, a powerful search system, a unique Tree mode, database of 5.083 million games in total (as of November 1, 2012) Houdini 3 is the World's strongest chess engine, capable of supporting up to 6 cores and 4 GB of hash. You can connect Houdini 3 UCI engine to Chess Assistant, Fritz and ChessBase