Houdini Aquarium 2019 & ChessOK Aquarium 2019
Houdini Aquarium 2019 is a new powerful analysis, database and chess publishing tool, powered by the world's strongest chess engine Houdini 6 and 7-piece Lomonosov Tablebases.

Houdini 6 Aquarium 2019 €53.95
ChessOK Aquarium 2019 €35.95

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Aquarium 2019 with Houdini 6 Release!
Aquarium 2016: Tree Generation Strategies
ChessOK Aquarium – Ultimate Analysis and Pla...
Chess Engine Management in Aquarium
Customizing Your IDeA Tree Configuration
CQL Queries in Chess Assistant
Annotating Games with Chess Assistant 10
Game analysis with Chess Assistant 10
Infinite Analysis with Chess Assistant 10
Chess Assistant Objects
World Chess Olympiad 2010
Getting More Out of IDeA in Aquarium 2010
New Rybka Aquarium Opening Book
Champions match: Kasparov – Karpov
Back with a Vengeance
Training with Peshk@: ELO 2400+ in two years
Dadi Jonsson’s article on CT-ART: Mating Com...
World Chess Olympiad 2010
Champions match: Kasparov – Karpov
Dadi Jonsson «Peshk@ Training Courses»
Play Chess on Your Mobile
Chess King with Houdini 2
Dadi Jonsson’s article on CT-ART: Mating Com...
Play chess Online.
Refuting Fischer
ChessOK.com chess shop. Chess equipment.
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Dadi Jonsson «Peshk@ Training Courses»

Peshka In April 2009 I wrote an introduction to Peshka@, the new ChessOK training and improvement framework.

Since then the ChessOK developers have been hard at work, not only completing its development, but also converting existing courses into the new Peshk@ format.

This means that the whole ChessOK training catalog will be available for Peshk@ upon its release.

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Analysis Presets in Rybka Aquarium

Rybka 3 Aquarium logotype This month we’ll examine infinite analysis presets in Rybka Aquarium. Presets allow you to store and quickly access your favorite analysis settings so you don’t have to configure them manually every time you want to use them. A single preset can hold advanced analysis configurations consisting of multiple engines and analysis panels.

I assume that the reader is familiar with the basics of infinite analysis in Rybka Aquarium, which was discussed in my July 2008 column.

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Peshk@: For Training and Improvement

Peshka These days it’s hard to keep up with everything that is happening at ChessOK in a monthly column. In recent months the focus has mostly been on Rybka Aquarium, but now they have a brand new product, Peshk@, which is to be released soon. It is a welcome addition to their long line of respected training and improvement programs.

Many readers are probably familiar with ChessOK training programs, such as CT-ART, Chess Tactics for Beginners etc. Peshk@ (“peshka” is the Russian word for “pawn”) is a completely new product, with a modern user interface and new features.

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Article – Jeroen’s New Opening Book for Rybka Aquarium

Buy Rybka 3 Openingbook by Jeroen Noomen

The first professional opening book for Rybka Aquarium has been released. The author is non other than Jeroen Noomen, a very experienced and highly regarded opening book author.

Jeroen is a member of the Rybka team and the author of the Rybka’s private opening book which is used in its most important competitions, including the World Computer Chess Championship.

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Highlights from the Rybka Aquarium book

Sicilian Najdorf: 6. Bg5 running out of favour?

In 2007 the sharp 6. Bg5 in the Sicilian Najdorf featured a nice comeback. White players delivered some heavy blows at the very popular Poisoned Pawn variation, black’s most respected line against 6. Bg5. Two years later black has been able to come up with 3 reliable answers against white’s most dangerous plan:
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3 10.e5 h6 11.Bh4 dxe5 12.fxe5
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Large-scale Analysis with Rybka Aquarium

Large-scale Analysis with Rybka Aquarium The average chess game consists of around eighty different positions. A fairly thorough game commentary may contain a couple of hundred additional positions. All of this fits neatly into the traditional game notation format. However, with Rybka Aquarium’s large-scale analyzing capabilities, the notation has lost its status as the place to store all your analysis.

Large-scale analysis results in thousands of analyzed positions for a single game or even a single position in a game. All the analyzed positions are stored permanently and are easily accessible along with their evaluations.

Large-scale analysis is not practical unless there is an automatic method that is capable of generating most of the analysis. The main purpose of large-scale analysis is increased productivity – something that the next generation of serious chess players will need in order to stay competitive.

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Opening Studies with Rybka & Chess Openings 2009

Buy Rybka 3 UCI & Chess Openings 2009
The clearest indication that Rybka 3 UCI & Chess Openings 2009 is much more than a regular onevolume reference work on the chess openings is in the title itself.

For this program includes Rybka 3, by far the strongest chess engine available.

This month I will discuss the different tools that the program offers for viewing and studying the theoretical material, and next month I will take a look at some additional features, including using Rybka for analysis.

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Find Blunders with Rybka Aquarium

Rybka 3 Aquarium logotype Last month we learned about Game Analysis, which is based on an advanced analysis algorithm. This month we’ll examine Find Blunders, which is a different approach to automatic game analysis in Rybka Aquarium.

About Aquarium’s Find Blunders

Find Blunders is intended as a quick search for critical blunders in a game.

Compared to Game Analysis, the main difference is that Find Blunders only does what the name indicates and skips all other types of annotations. Additionally, because of its narrower focus, the analysis algorithm itself is not as refined as the one used by Game Analysis.

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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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