Upgrade Peshk@ to Multiplatform

Upgrade CT-ART. Mating Combinations to Multiplatform 5x
Levels 4 - 6 [Rating 1200-1800]; Tactics. 1200 examples and 700 exercises on 14 themes illustrating different mating situations.

Upgrade CT-ART 4.0 to Multiplatform 5x
Levels 4 - 8 [Rating 1200-2200]; Tactics. The famous bestselling tactics course for club and intermediate players. 4000 hand-picked exercises, advanced hint system.

Upgrade Mating Combinations in the Opening to Multiplatform 5x
This course is intended for club players and includes more than 600 exercises for mating in the openings. All the exercises are taken from practical games and arranged according to the names of openings.

Upgrade Chess Tactics in Scandinavian Defense to Multiplatform5x
Levels 6 - 8 [Rating 1600-2200]; Opening. Scandinavian Defense is a daring opening for those who fight for initiative from the very first moves.