Chess Assistant 15 & Chess Assistant 15 PRO
Chess Assistant 15 combines advanced game database management, analysis powered by Houdini 4, the advanced Tree mode, Opening Encyclopedia and many other features.

Chess Assistant 15 with Houdini 4 — $94.95 / €75.96
Chess Assistant 15 PRO with Houdini 4 Pro — $145.95 / €116.76

ChessOK.com » Chess Puzzles

Do you like chess puzzles? Then check your chess skills by solving our chess tasks! There are 1200 chess puzzles of different level from beginners to intermediate players available. You can change the appearance of your chess pieces and the level of difficulty.

Level 1 corresponds to ELO 1300 – 1400
Level 2 corresponds to ELO 1300 – 1600
Level 3 corresponds to ELO 1450 – 1650
Level 4 corresponds to ELO 1500 – 1800
Level 5 corresponds to ELO 1500 – 1900

To enter the solution, click on the desired piece and drag it to the target square. In the tasks of a higher level you have to enter a series of moves. If you enter a wrong move the program will give your a hint. Below the chess board you can see the game notation and time. All info is displayed in the upper right field of the chess board.

Besides you can test your chess skills by playing versus computer or human opponents at our playing zone

Good luck !


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

Study chess online on our new dedicated website. There are many training courses and thousands of chess puzzles to solve.

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