Houdini 2 Aquarium is a new powerful analysis, database and chess publishing tool, combined with the world’s strongest chess playing engine, Houdini 2 (current CCRL rating is 3347). Houdini 2 Aquarium includes databases of 5.1 million games in total (before October 1, 2011) that can be updated from www.chessok.com each week with 2000 new games for free.

Houdini 2 Aquarium supports up to 6 cores and 4 GB of hash — $59.99 / €47.99

Houdini 2 Aquarium Pro supports up to 32 cores and 32 GB of hash — $95 / €76

All Houdini & Aquarium products.

There’s more about Houdini Aquarium below:

Houdini Aquarium is a major step by ChessOk/Convekta in creating the perfect analysis tools for all chess players. The best GUI goes together with the strongest chess engine.

Houdini engine: At the time of release Houdini leads all the major Computer Chess rating lists. From numerous interviews it appears that many top Grand Masters including the current chess World Champion Viswanathan Anand use and appreciate Houdini.

Aquarium: Aquarium is the best tool for serious analysis. Many advanced players use it for preparation for tournaments and for game analysis, including the unique Interactive Deep Analysis (IDeA) which is more powerful and convenient in the new Aquarium version. The new version gives users a simple setting to choose the shape of the analysis tree that IDeA will create. The new IDeA algorithm is much improved and faster than before.

New blog export allows users to publish their games and analysis with chess graphics on web pages and blogs.

A stronger engine and improved IDeA algorithm enhance the quality of your analysis and give you an advantage on your opponents.

With the Houdini Aquarium Pro version you can take advantage of high-end hardware and add at least 50 ELO points to the strength of play.

What’s new

(as compared to Aquarium 2011 GUI and Houdini 1.5 engine).

1. Houdini 2.0b chess engine
a. 25 Elo stronger than Houdini 1.5
  b. Nalimov tablebases are supported
  c. Chess 960 is supported
  d. Additional strength with Houdini 2 Pro engine (up to 32 processors, Large pages support, Numa-related speed improvements )
2. IDeA is significantly improved
  a. New algorithm and new parameters for specifying tree shape. Now IDeA solves more tasks in automatic mode. With Tactical or Aggressive tree shapes new IDeA could solve in automatic mode even some tactical positions that infinite analysis could not.
  b. “Export all projects to Master Tree” is added
  c. IDeA engine is optimized and works much faster
3. Inifinite analysis improvements
  a. When analysis line is inserted into notation, additional comment is added to the end of the line about where this analysis had place.
  b. In infinite analysis history tree you can see not only evaluations of the moves but also depths of analysis
4. Database fixes
  a. Limit for size of PGN files is increased up 4 GB instead of 2 GB before
  b. Fixed bug with deleting games in PGN file
  c. Templates with described header fields can be used for new and existing databases
5. Improved blog export
  a. Arrows under board.
  b. Arrow keyboard shortcuts work.
6. Improved chess font AqChess.
  a.  Problems with some symbols not being displayed for some locales are solved.
  b. Font parameters were changed for compatibility issues.
7. Many minor changes and fixes