Chess Puzzles — Free Online Tactics Trainer

Solve chess puzzles taken from real games and train your tactical vision with an adaptive, AI-powered puzzle trainer. Every puzzle has a concrete solution: find the winning move, follow the forced line to the end, and use a hint when you are stuck. You can start solving immediately — no account needed — and signing up lets the trainer adapt puzzle difficulty to your rating as you improve.

Puzzles for every level

The trainer serves five difficulty tiers, so the same motifs can be practiced from first principles to master level:

Beginner (rating 300–800): one- and two-move tactics that build board vision.
Intermediate (800–1300): forks, pins, skewers and back-rank strikes from club games.
Advanced (1300–1800): combinations that need real calculation — deflections, discovered attacks, mating nets.
Expert (1800–2200): quiet moves, defensive resources and deep sacrifices.
Master (2200–3000): the hardest tactics in the database, taken from master play.

Train chess tactics by theme

Chess tactics repeat: forks, pins, skewers, discovered attacks, deflections, sacrifices, checkmate patterns like the back-rank and smothered mate, and endgame techniques such as promotion races and zugzwang. The trainer lets you filter puzzles by any of these themes, so you can drill exactly the pattern you keep missing — the fastest way to turn a named idea into a reflex.

Practice puzzles by theme

Fork Puzzles — Solve fork puzzles from real games: knight forks, pawn forks and royal forks. Practice free in an adaptive, AI-powered puzzle trainer with hints when you need them.
Pin Puzzles — Practice pin puzzles from real games: absolute pins, relative pins, and piling up on a pinned piece. Solve one now, then train the motif at your level for free.
Skewer Puzzles — Solve skewer puzzles from real games — attack a big piece, win the one hiding behind it. Free practice in an adaptive puzzle trainer with five difficulty levels.
Discovered Attack Puzzles — Practice discovered attacks and discovered checks: move one piece, attack with two. Real-game puzzles, free to solve, in an AI-powered adaptive trainer.
Deflection Puzzles — Solve deflection puzzles: drag the defender away from its job and cash in. Real-game positions, free to try, in an adaptive trainer with hints when you are stuck.
Sacrifice Puzzles — Practice sacrifice puzzles from real games — queen sacs, exchange sacs and mating attacks. Solve one free, then train sacrifices at your own level.
Hanging Piece Puzzles — Train the most valuable habit in chess: spotting undefended pieces. Solve hanging-piece puzzles from real games, free, in an adaptive AI-powered trainer.
Checkmate Puzzles — Solve checkmate puzzles from real games — forced mates from one to four moves, mating nets and king hunts. Free to practice at every level, beginner to master.
Mate in 1 Puzzles — One move to win: solve mate-in-1 puzzles from real games and sharpen your checkmate vision. Free practice in an adaptive puzzle trainer with hints.
Mate in 2 Puzzles — Solve mate-in-2 puzzles from real games: find the forcing first move, meet every defense, deliver mate. Free to practice, with hints when you need them.
Mate in 3 Puzzles — Mate-in-3 puzzles from real games: quiet moves, sacrifices and mating nets that need real calculation. Solve one free, then train deeper mates at your level.
Mate in 4 Puzzles — Four-move forced mates from real games — long king hunts and quiet-move finishes for players who want deep calculation practice. Free, in an adaptive trainer.
Back Rank Mate Puzzles — Practice back-rank mate puzzles: deflect the defenders, crash through on the eighth rank. Real-game positions, free to solve, in an AI-powered trainer.
Smothered Mate Puzzles — Solve smothered mate puzzles — queen sacrifice, knight check, and a king buried by its own army. Practice the classic pattern free, at your own level.
Endgame Puzzles — Practice endgame puzzles from real games: king activity, passed pawns and precise technique. Solve free, then train endgames move by move at your level.
Rook Endgame Puzzles — Rook endgames decide more games than any other. Solve rook endgame puzzles from real play — activity, cut-offs and seventh-rank power — free, at every level.
Pawn Endgame Puzzles — King-and-pawn endgames are pure calculation — one tempo decides. Solve pawn endgame puzzles from real games, free, in an adaptive AI-powered trainer.
Zugzwang Puzzles — Practice zugzwang puzzles: hand your opponent the move and watch their position collapse. Real endgame positions, free to solve, in an adaptive trainer.
Promotion Puzzles — Solve promotion puzzles from real games: breakthroughs, underpromotions and queening races. Free practice in an AI-powered adaptive puzzle trainer.
En Passant Puzzles — Puzzles where en passant is the point: captures that open files, deflect defenders or force mate. Solve them free and train the pattern at your own level.

More ways to train

When you want speed instead of depth, Puzzle Flash serves rapid-fire tactics against the clock and Time Bomb turns puzzle solving into a survival race. For the theory behind the positions, the endgame reference explains every essential ending, the chess terms glossary defines each tactical motif, and the opening courses take you from the first move to a full repertoire.

Pattern recognition is the closest thing chess has to a shortcut: study after study of expert play points to memorized patterns, not raw calculation, as the difference between levels. A few puzzles a day, at the right difficulty, compounds faster than any other kind of chess work.