Chess Assistant 17 & Chess Assistant 17 PRO
Chess Assistant 17 combines advanced game database management, analysis powered by the strongest Houdini 5 engine, the advanced Tree mode, Opening Encyclopedia and many other features.

Chess Assistant 17 with Houdini 5 — $94.95 / €75.96
Chess Assistant 17 PRO with Houdini 5 PRO — $145.95 / €116.76

ChessOK.com » Houdini Opening Book released!
Houdini Opening Book released! 10 November 2011

ChessOK is glad to announce the release of an extra strong Houdini 2 book specially created for using with the Houdini 2.0 engine. Houdini Opening Book provides the latest chess theory that proved itself in millions of advanced chess games and matches of top human players. It includes over 65 million positions.
The book can be used in Aquarium GUI and in other GUIs (Fritz etc.) via Aquarium Book Adapter, supplied with Aquarium build 490.

Houdini Opening Book (download) - $29.99 / €20.42
Houdini Opening Book (DVD) - $29.99 / €20.42

Read more about Houdini Opening Book
Update Aquarium to build 490 (required for Houdini Opening Book)

Read more about using Houdini Opening Book in other interfaces

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