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

Aquarium 2019 with Houdini 6 Release!
The newest installment of Aquarium with Houdini 6 is now available in our shop. ChessOK Aquarium 2019 is an advanced chess analysis software featuring the world’s best analysis tools: Interactive Deep Analysis (IDeA), CAP analysis, chess trees etc. Houdini 6 Aquarium 2019 combines the effective and innovative analysis and publishing tools of the Aquarium 2019 interface with the immense calculating power of the world’s strongest engine Houdini 6. Depending on the product, you gain 3 to 12 months of FREE subscription at Chess King Learn, giving you full access to all Chess King training courses! Learn more about the differences between tour programs in in our Product Comparison Table.

Chess Assistant 19 with Houdini 6 Release!
Newest instalment of Chess Assistant is now available in our shop, with Houdini 6 and database 7,077,000 games! Chess Assistant 19 with Houdini 6 is a powerful tool designed for managing chess games and databases, playing chess online, analyzing games, and playing against the computer. The Starter package comes with Houdini 6 while the Professional package uses Houdini 6 PRO for even more playing strength! Depending on the product, you gain 3 to 12 months of FREE subscription at Chess King Learn, giving you full access to all Chess King training courses! Learn more about the differences between tour programs in in our Product Comparison Table. Chess Assistant 19 PRO with Houdini 6 PRO for download. Chess Assistant 19 PRO with Houdini 6 PRO DVD. Chess Assistant 19 with Houdini 6 for download. Chess Assistant 19 with Houdini 6 DVD. Upgrade Chess Assistant 18 to Chess Assistant 19 with Houdini 6 for download. Upgrade Chess Assistant 18 to Chess Assistant 19 with Houdini 6 DVD. Upgrade Chess Assistant 17 and earlier versions to Chess Assistant 19 with Houdini 6 for download. Upgrade Chess Assistant 17 and earlier versions to Chess Assistant 19 with Houdini 6 DVD.

Chess King 2018 (Windows + Mac OS) Available in our Shop!

Chess King Diamond 2018, Chess King Diamond Pro 2018 and Chess King Standard 2018 are now available both on DVD and for download! Compatible with the new OS X 10.13 High Sierra.

Buying Chess King 2018 is like getting several products and paying only for one, a professional chess software playing and analysis system, the largest game database available GigaKing, the super grandmaster chess engine Houdini 6 / Houdini 6 PRO, 1500 chess puzzles for all chess levels, a unique random playing mode, and much, much more.

Chess School Online: 102 Voiced Video Lessons

Our new product Chess School Online (Starter Package), is released!

Chess School Online is a web-based chess teaching platform. You can access it anytime, anywhere, using a web browser and Internet connection.

The full course includes 102 fully voiced and animated video lessons with exercises that will guide you from complete beginner to the level of a competent club player.

The course is subdivided into 3 parts, which can be purchased separately or all at once.
Upon purchase, you receive lifelong access to all materials in the course.

Chess Assistant 18 and Aquarium 2018 Release, now with Houdini 6!

Newest instalments of Chess Assistant and Aquarium are now available in our shop, now with Houdini 6 – the winner of the TCEC Championship for chess engines and the World’s strongest program!

ChessOK Aquarium 2018 is an advanced chess analysis software featuring the world’s best analysis tools: Interactive Deep Analysis (IDeA), CAP analysis, chess trees etc.

Houdini 6 Aquarium 2018 combines the effective and innovative analysis and publishing tools of the Aquarium 2018 interface with the immense calculating power of the world’s strongest engine Houdini 6.

Chess Assistant 18 with Houdini 6 is a powerful tool designed for managing chess games and databases, playing chess online, analyzing games, and playing against the computer.

Depending on the product, you gain 3 to 12 months of FREE subscription at Chess King Learn, giving you full access to all Chess King training courses!

Learn more about the differences between tour programs in in our Product Comparison Table.

Houdini 6 Wins the TCEC Championship! Interview with Author Robert Houdart
After intense struggle, Houdini has officially won Season 10 of the Top Chess Engine Championship, becoming the engine with most titles in TCEC history. Read chessdom.com’s interview with the creator of the engine Robert Houdart, where he speaks about the Superfinal of TCEC, Season 10, the future season and a possibility for a match with the new AlphaZero.

Our new products featuring Houdini 6:

  • Houdini 6 Aquarium 2018 combines the effective and innovative analysis and publishing tools of the Aquarium 2018 (Interactive Deep Analysis (IDeA), CAP analysis, chess trees etc) interface with the immense calculating power of the world’s strongest engine Houdini 6.
  • Chess Assistant 18 with Houdini 6 is a powerful tool designed for managing chess games and databases, playing chess online, analyzing games, and playing against the computer.

Chess Training Apps for iOS and Android!
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We are continuing to release new courses for iOS and Android – check out the full lists of apps with description:

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2 New Books on Alekhine’s Legacy

2 new books are available in our shop.
During the first week only (until April 27), we are offering 20% discount on them!

A. Alekhine, Complete Games Collection, with his own annotations – For the first time, ALL Alekhine’s games are published in one book, accompanied with his own comments.

Alekhine Defense – A Complete Guide: Extensive and deep study of Alekhine’s variations, with many well-known lines re-evaluated and revised with the help of modern computer technologies and the author’s insight.

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!

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

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