Houdini Aquarium 2015 & Houdini PRO Aquarium 2015
Houdini Aquarium 2015 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 4 and 7-piece Lomonosov Tablebases.

Houdini Aquarium 2015 — $65.95 / €52.7
Houdini PRO Aquarium 2015 supports up to 32 cores and 32 GB of hash — $94.95 / €75.95

Latest broadcast:
Online Grand Prix 2012
Round 1
ChessOK.com » Chess Middlegame Collection 2013
Chess Middlegame Collection 2013 21 June 2013

Chess Middlegame Collection 2013 is a set of six unique chess courses. Five courses on the middlegame (Encyclopedia of Middlegame, volumes I-V) cover the theory and practice of the middlegame for each of the openings. The sixth course, Chess Strategy, explores 18 strategic motifs (Weak squares, Pawn structure etc.) and typical structures (Isolated pawn, Hanging pawns etc.).

Each of the six courses contains rich theoretical material for the corresponding openings and variations, and positions to solve. In total, the Chess Middlegame Collection 2013 includes more than 3000 games/lectures prepared by GM Alexander Kalinin and more than 4000 exercises to solve.

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.

Study chess online on our new dedicated website. There are many training courses and thousands of chess puzzles to solve.

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