What is the ChessOK app list?

ChessOK apps cover all phases of chess education, from beginners to master players.

Beginner

• Capturing Pieces 1
• Capturing Pieces 2
• Mate in 1
• Simple Defense
• Chess: Year 1
• Chess School for Beginners

Intermediate

• Elementary Chess Tactics 1
• Elementary Chess Tactics 2
• Advanced Defense (Chess Puzzles)
• Mate in 2
• Mate in 3-4
• Chess Tactics for Beginners
• CT*Art Chess Mate Theory
• Chess Strategy for Beginners
• Chess Tactics Art1400-1600
• Learn Chess: From Beginner to Club Player
• Chess Endings for Beginners
• Chess Endgame Studies
• Chess Opening Blunders
• Chess Opening Lab1400-2000

Advanced

• Chess Combination vol 1
• Chess Combination vol 2
• Chess Strategy and Tactics vol I1600-2000
• Chess Strategy and Tactics vol 21800-2200
• Chess Strategy1800-2400
• Manual of Chess Combinations
• Total Chess Endings1600-2400
• CT*Art 4.01200-2400
• Chess Middlegames I
• Chess Middlegames II
• Chess Middlegames III
• Chess Middlegames IV
• Chess Middlegames V
• Encyclopedia Chess Combinations Vol. 1 Informant
• Encyclopedia Chess Combinations Vol. 2 Informant
• Encyclopedia Chess Combinations Vol. 3 Informant
• Manual of Chess Strategy vol I
• Manual of Chess Strategy vol II
• Chess: a Positional Opening Repertoire I
• Chess: a Positional Opening Repertoire II
• Universal Chess Opening 1. d4 2. Nf3 3. e3

There are also two series, one about world champions and another one about tactics in specific opening.