Chess Assistant 16 & Chess Assistant 16 PRO
Chess Assistant 16 combines advanced game database management, analysis powered by strong engines, the advanced Tree mode, Opening Encyclopedia and many other features.

Chess Assistant 16 — $94.95 / €75.96
Chess Assistant 16 PRO with Houdini 4 Pro — $145.95 / €116.76

Weekly Deals from ChessOK

Dear customer,

All training courses have received massive price reduction - 5% to 40%! Check them in our shop. Most training packages are now 39.95/€31,96 or cheaper!

October 14 to October 20, the following special offers are available. All offers stack!

Products of the Week: 20% off Products of the Week - all Chess Assistant 16 products, including Upgrade and Update versions!

Special Offer 1: If you order products for more than $120/€100, choose one download programs for up to $25/€20 each as a bonus!

Special Offer 2: Order 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.

New courses for iOS and Android!


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

Chess Training Apps for iOS!

Chess: From Beginner to Club Player and 4 other training courses are now available on iOS devices - check them out in the App Store! Each course features tons of material sorted in a well-structured table of contents, top quality examples/exercises, hint system, progress tracker, flexible customization and more!

More courses for iOS are coming soon!

ChessOK Aquarium 2016 Released!

ChessOK Aquarium 2016 is now available in our shop!

ChessOK Aquarium 2016 is a chess playing and analysis environment, offering advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases, 7-man endgame tablebases and much more.

What’s new in ChessOK Aquarium 2016:

  • Major improvements and optimization of the tree database subsystem, leading to faster and more reliable trees.
  • A new and powerful analysis feature, based on IDeA tree generation strategies. Pick one of the predefined strategies that come with Aquarium 2016, or create your own and generate trees based on any pattern you want. Read review by Dadi Jonson.
  • Queries to the online 7-piece tablebase server are processed much faster than in previous versions.
  • Both the 64-bit and the 32-bit versions now support DSN databases and iBook
  • Numerous other minor changes and fixes, for example, Ctrl-X hotkey deletes all “Sent to server” move markers in the game score.

Peshka Updated to 2.01

Peshka 2.0 has been updated to Peshka 2.01. The new version fixes all issues our users have reported, including login problems, and removes the need for admin rights during installation.

See Peshka 2.01 download and installation instruction.

If you already have Peshka installed, you can download the patch file and run it to update the program.

Buy or Upgrade to CT-ART 6.0 with Peshka 2.0!

CT-ART 6.0, the latest instalment of the renowned chess training program, is now available in our shop! If you own CT-ART 5.0 purchased in our shop, you can UPGRADE it to CT-ART 6.0!

With 2 new courses for beginners, 200 new teaching examples in the core CT-ART course and updated Peshka 2.0 interface, CT-ART 6.0 is the ultimate tactics training tool that can take you from the very basic principles to advanced, GM-level combinations! For this new edition, the material has been computer checked and revised.

The courses come in updated Peshk@ 2.0 interface that now accepts and gives points for suboptimal but still winning moves and supports multiple interface languages.

Courses in CT-ART 6.0:

  • Level 1 - Chess Tactics for Beginners (ELO 200-1400; 1200+ puzzles)
  • Level 2 - Elementary Chess Combinations (ELO 1000-1400; 5000+ puzzles)
  • Level 3 - CT-ART for Beginners (ELO 1400-1600; 150 examples, 1500 puzzles)
  • Level 4 - CT-ART. Mating Combinations (ELO 1400 - 2000; 1200 ex., 700 p.)
  • Level 5 - Chess Tactics Art (ELO 1400 - 2400; 200 examples, 2200 puzzles)

Chess King LEARN!


The new Learn section on features several FREE training courses on various aspects of chess, sortable by level of difficulty and general direction.

The courses are available in several languages - check the language box to the left of the course list!

  • Chess Strategy (1800-2200)
  • Chess Middlegame II - V
  • Chess Tactics Art (1400-1600)
  • Chess Puzzles Advanced Defense
  • Attack on the King II. Mating in 3 or 4 Moves
  • Chess Tactics Art (1600-1800)
  • CT-ART. Mating Combinations
  • Total Chess Ending (1600-2400)
  • Attack on the King I. Mating in 2 Moves
  • Complete Chess Course (1000-1600 ELO)
  • Chess Opening Blunders
  • Chess: From Beginner To Club Player
  • Chess Tactics for Beginners
  • Mate in 1 move (Chess Puzzles)

CT-ART for Android!

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

This excellent tactics course has been voted more than once by the chess experts as the best training program on chess tactics. CT-ART is an indispensable training tool for intermediate players sporting an advanced hint system - each position is accompanied with a similar one on a 5×5 board, demonstrating the main point of the example! For chess players, playing casino games might seem an unusual move. However, they’ll be surprised to discover that many online casino games require a good understanding of strategy to become a confident player (find the games discussed here, and others, at Blackjack is the best example of a game where understanding strategy is imperative – it doesn’t help you to predict what card is coming next, but you better understand the chances of winning a hand in any given situation. Likewise, video poker and Pai Gow poker are also games where strategy enables you to influence the ultimate outcome. Find out more about how to play casino games at Just like ChessOK features virtual chess software and online chess, sites like Online Casino Bluebook feature reviews of the best online casinos. Mobile casino is the best mobile casino resource in the UK while are focused on listing and reviewing all available slots online. Although all slots might not be available there, but will certainly have all the latest releases available in completely free play mode!

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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