Chess Puzzles — 3 Million+ Tactics and Combinations

Sharpen your tactical vision with ChessOnyx's puzzle trainer. Over 3 million chess puzzles sourced from real games and verified by Stockfish 18. Filter by theme, difficulty, and opening to target exactly the areas where you need improvement.

How Chess Puzzles Work on ChessOnyx

Each puzzle presents you with a real position from a real game where there is a best move or combination to find. The puzzle is solved when you find the correct sequence. ChessOnyx accepts any checkmate as correct regardless of the specific move order, prioritizing your understanding of winning patterns over memorization.

Filter by Theme and Difficulty

ChessOnyx puzzles are tagged with tactical themes so you can focus your training on the areas you want to improve:

• Checkmate patterns: Back rank mate, smothered mate, Arabian mate, and dozens more.
• Tactical motifs: Fork, pin, skewer, discovered attack, double check, deflection, decoy, and interference.
• Endgame techniques: King and pawn endgames, rook endgames, and pawn promotion combinations.
• Sacrifice themes: Exchange sacrifices, piece sacrifices for attack, and positional sacrifices.
• Difficulty levels: Puzzles rated from beginner to grandmaster level so you always find the right challenge.

Why Tactical Training Matters

Tactics are the foundation of chess improvement at every level. Even grandmasters spend significant time solving puzzles to keep their calculation sharp. Regular tactical training builds pattern recognition — the ability to spot winning combinations instantly without needing to calculate every variation from scratch. A player who has solved thousands of puzzles will see threats and opportunities that others miss entirely.

Free to Play

All puzzles are completely free to play. No account required. ChessOnyx Pro members get additional features like puzzle history tracking and performance statistics across puzzle sessions.