Chess Assistant 23 & Chess Assistant 22
Chess Assistant 23 combines advanced game database management, analysis powered by the strongest engines, the advanced Tree mode, Opening Encyclopedia and many other features.

Chess Assistant 23 €75.96
Chess Assistant 22 €47.48

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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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Aquarium’s Hidden Treasures. Part Two
Aquarium 2010 has been released. In comparison to the initial Aquarium version, which was released last year, it is clear that progress has been very rapid, both in improvements to existing features and the addition of new features and stability. Its database feature started out with a limit of two open bases, but now the limit has been removed and database performance has been improved. Aquarium has also taken the lead on publishing iBooks and HTML content for web pages and blogs. That’s quite a change from the initial version, which didn’t even have a printing feature. Aquarium has been a leading analysis tool from the beginning; nevertheless, the new version shows huge improvements in this area, as you can see by reading last month’s column about IDeA. The new Aquarium also emphasizes analysis on networked computers; a new feature that can give a big boost to IdeA, as well as advanced infinite analysis. Read the rest of this entry »

Aquarium’s Hidden Treasures

Rybka 3 Aquarium logotype Part One
Graphical Annotations
Visual annotations are an effective tool to recall your thoughts about a position and quickly remind you of its most important features. They are also essential for creating video lectures and very useful for live commentary. Open (or create) a game and click “Color Marks” on the “Comments” tab.
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Interactive Deep Analysis (IDeA) With Rybka Aquarium 2010
One of the biggest changes in Rybka Aquarium 2010 is the greatly improved Interactive Deep Analysis (IDeA). Many players were happy with the possibilities offered by IDeA in Rybka 3 Aquarium, but I’m afraid that it will look like a dinosaur compared to the new version. It provides better automatic analysis and much more effective ways to control the analysis process and the shape of the analysis tree. I’m sure that many serious players will find that the new and improved IDeA is an essential tool to stay competitive. Read the rest of this entry »

iBook Examples

Rybka 3 Aquarium logotype Rybka Aquarium 3.2 has been released with several interesting enhancements. Some of them have been described in my recent ChessOK Cafe columns and, as usual, the Aquarium FAQ describes many of the new features.
In this column I will show a few examples that should help iBook authors better understand some of the commands available to them. I assume that the reader is familiar with my two previous iBook columns: “Interactive Chess Books in Rybka Aquarium” and “Writing Aquarium iBooks – Introduction”.
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Champions match: Kasparov – Karpov
karkas 12th and 13th World Champions Anatoly Karpov (2619) and Garry Kasparov (2812) will play match in Valencia, Spain from 21st to 24th September. Match format: 12 (4 Rapid and 8 blitz) games. Time control: rapid: 25 min + 5 sec/move, blitz 5 min+2 sec/move. Games start at 18.00 GMT. ChessOK is going to broadcast all games of this tournament with Rybka 3 Aquarium commentary. Games: Game 1 [download PGN], Game 2 [download PGN], Game 3 [download PGN], Game 4 [download PGN], Blitz [download PGN] [–match–]

Handicap Play in Rybka Aquarium

Rybka 3 Aquarium logotype This month we will examine how you can play against Rybka (or another chess engine) in Aquarium.
The Play mode in Aquarium has been revised and streamlined in the upcoming Aquarium 3.2 version. As usual many of the improvements are based on user feedback.
Read the rest of this entry »

Back with a Vengeance

Starting in India and Persia and evolving in the 15th century into the game we know today, chess is, without a doubt, one of the most mind-bending, all-consuming, one-on-one games of pure will and determination known to man. The strategic and tactical nature of the game makes its required skill level rise above and beyond any of the trite findings of your everyday online casinos. But with an easy-to-learn format, many of today’s online gamers are logging onto chess-specific sites to match their grit and will to win against a plethora of opponents.

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Dadi Jonsson «Introduction to Writing Aquarium iBooks»

Buy Rybka Aquarium Opening Book In February 2009 I described a new feature of Rybka 3 Aquarium, Interactive Chess Books or iBooks.
At that time the tools for creating iBooks were rather primitive, but a new version of Aquarium is expected soon and improved iBook writing tools are among the enhancements.
In this column I will show you the basics of creating iBooks – enough to get you started writing your own.
Just keep in mind that there are a many features that I only mention briefly, or skip completely, including some that are quite useful for larger writing tasks.

Based on the experience so far, we can see that iBooks are suitable for both small and large projects. You may prefer to use iBooks for your own personal annotations, for presenting tactical exercises and other training material, for web publishing, for preparing forum posts, etc. It has also been used successfully for jobs such as converting a 200 page chess book to iBook format.

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