Specials

ChessOK Aquarium 2022 (download)
ChessOK Aquarium 2022 offers advanced analysis functions, game commenting, searching, powerful chess trees, playing, databases and much more.

Upgrade Chess Assistant 20 or earlier to 22 (download)
Upgrade your Chess Assistant 20 or earlier to Chess Assistant 22. Enter your Chess Assistant serial number into the comments field when ordering.

Upgrade Chess Assistant 21 to 22 (download)
Upgrade your Chess Assistant 21 to Chess Assistant 22. Enter your Chess Assistant serial number into the comments field when ordering.

Chess Assistant 22 (download)
Chess Assistant 22 is a unique tool for managing chess games and databases, playing chess through the Internet, analyzing games, or playing chess against the computer.

Houdini 6 PRO Aquarium 2019 (DVD)
Houdini Aquarium 2019 is a revolutionary analysis, database and chess publishing tool, combined with the world’s strongest chess playing engine, Houdini 6 PRO, which is 60 ELO points over its predecessor and supports up to 128 cores and 128 GB of hash.

Houdini 6 PRO Aquarium 2019 (download)
Houdini Aquarium 2019 is a revolutionary analysis, database and chess publishing tool, combined with the world’s strongest chess playing engine, Houdini 6 PRO, which is 60 ELO points over its predecessor and supports up to 128 cores and 128 GB of hash.

The Manual of Chess Combinations, vol. V, Chess nuts
This book is written by experienced chess masters and trainers to help players develop combination vision by systematic training in examining and solving typical combinations

Manual of Chess Combinations, Vol. I
Learn to solve more complicated problems. Our new book includes combinations occurred in the games by well-known players, including outstanding masters of the past and the present.

Upgrade Mate Studies to Multiplatform 5x
Mate Studies I (ELO 1600-2550). English and Spanish versions available.