Houdini Aquarium 2017 & Houdini PRO Aquarium 2017
Houdini Aquarium 2017 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 5 and 7-piece Lomonosov Tablebases.

Houdini Aquarium 2017 — $59.95 / €47.96
Houdini PRO Aquarium 2017, up to 128 cores and 128 GB of hash — $99.95 / €79.96

ChessOK.com » New Products Available: CT-ART 4.0, Elementary Checkmates I & II
New Products Available: CT-ART 4.0, Elementary Checkmates I & II 25 November 2009

3 new programs are available for ordering on ChessOK.com from today. Those are:
CT-ART 4.0, Chess for beginners: Checkmates I, Chess for beginners: Checkmates II.

The long awaited CT ART 4.0, which is a indispensable training tool for intermediate players. The new version sports a convenient user interface and adds 1,000 training exercises (2,200 basic exercises and 1,800 auxiliary exercises altogether)

There are also upgrade versions (from CT-ART 3.0) available:

Elementary Checkmates I & II which are mainly aimed for beginners who do not want to miss 1 move mate, but also would be useful as exercises for more experienced players:

Study chess online on Chess King Learn! Time-proven training courses, thousands of examples and exercises.

Start playing right now in your web browser on Chess King Playing Zone! Teams, tournaments, training, analysis and much more!

7-man Lomonosov Tablebases provide deeper-than-ever insight into chess endgame.

Download weekly chess database updates (containing 2000+ games) with latest tournaments and games in PGN and Chess Assistant format.

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