Houdini Aquarium 2018 & Houdini PRO Aquarium 2018
Houdini Aquarium 2018 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 2018 — $53.95 / €53.95
Houdini 6 PRO Aquarium 2018, up to 128 cores and 128 GB of hash — $89.95 / €89.96

Weekly Deals from ChessOK!

March 16 to March 22, the following special deals are available. All offers stack!

Offer of the Week: 30% off all Training Packages, both on DVD and for download!

Special Offer 1: 50% discount on all courses in the Opening Encyclopedias section!

Special Offer 2: 30% off ChessOK Aquarium 2018, both on DVD and for download!

Special Offer 3: Buy any new Chess Assistant 18 or Houdini 6 Aquarium 2018 product, including Upgrade versions - and receive 2 years of access to 7-man Lomonosov Tablebases instead of one!

Special Offer 4: 50% off previous instalments of Chess Assistant and Houdini Aquarium!

Special Offer 5: 20% off all training courses for download and all books!

Special Offer 6: Make any purchase for $18/€15 or more and receive free subscription at learn.chessking.com! Read: (How to activate your bonus subscription)

  • $18/€15 - 1-month subscription
  • $48/€40 - 3-month subscription
  • $144/€120 - 12-month subscription

Special Offer 7: If you order products for more than $120/€100, choose one download programs for up to $24/€20 as a bonus!

Special Offer 8: Purchase any 2 programs in our web shop and get a 3rd program of your choice (within the price range of the first two) for free!

Note: Specify the bonus product(s) you want to receive in the comments field when filling the order form.

Houdini 6 Wins the TCEC Championship! Interview with Author Robert Houdart

Houdini chess engine

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 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.

New Books

Dear customer,

8 new books are available in our shop:

Chess Assistant 17 Released

Chess Assistant 17 and Chess Assistant 17 PRO are available for download, powered by the latest version of Houdini 5, now stronger than ever!

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

What’s new:

  • Houdini 5 - the engine has improved greatly since the previous version and is now stronger than ever, 200 ELO points over its predecessor Houdini 4. Houdini 5 PRO coming with Chess Assistant 17 PRO can now support up to 128 cores and 128 GB of hash, including NUMA support!
  • Chess King LEARN subscription (3 months for CA17, 1 year for CA17PRO), giving access to all courses available there (37 courses as of Nov.2016 and counting)! The courses are available in 9 European languages, sorted by category and difficulty level, and include such gems as Chess Tactics for Beginners 2.0, Chess: From Beginner to Club Player, Chess Strategy, Chess Middlegame series, several courses from CT-ART and Chess Tactics in the Opening series and more.
  • Updated databases now contain 6.6 million games in total!
  • 1-year access to Lomonosov Tablebases! The subscription will be active for 1 year starting the date of activation at the tablebases service.
  • Premium Game Service 2017 will provide you with 3000 games auto downloaded weekly until December 31, 2017.

Buy Chess Assistant 17 in our web shop:

Chess Training Apps for iOS and Android!


We are continuing to release new courses for iOS and Android - check out the full lists of apps with description:

Peshka Updated to 2.02

Peshka 2.1 has been updated to Peshka 2.02. The new version fixes all issues our users have reported, including login problems, and removes the need for admin rights during installation.

See Peshka 2.02 download and installation instruction.

CT-ART for Android!

CT-ART is now available on Android - check it out on Google Play or Download Apk!

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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!

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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