Upgrade Peshk@ to Multiplatform

Upgrade Chess Tactics in Sicilian Defense II to Multiplatform 5x
Levels 6 - 8 [Rating 1600-2200]; Opening. Theory and hooks in the most deciding variations of the Sicilian Defense developing after moves 1. e4 c5 2. Nf3 Nc6: the Dragon variation, the Najdorf variation, the Scheveningen variation and the Richter Attack.

Upgrade Chess Tactics in Open Games to Multiplatform 5x
Levels 6 - 8 [Rating 1600-2200]; Opening. Theory and playing hooks in Open Games, appearing after moves 1. e4 e5 2. Nf3 Nc6 3. Bc4: Two Knight’s Defense, Italian Game, Evans Gambit.

Upgrade Chess Tactics in Sicilian Defense to Multiplatform 5x
Levels 6 - 8 [Rating 1600-2200]; Opening. An extensive course covering the most sharp and deciding variations of the Sicilian Defense.

Upgrate Chess Guide for Club Players to Multiplatform 5x
Levels 6 - 7 [Rating 1600-2000]; Strategy. 75 lessons with 400 examples and more than 200 exercises.