Puzzle library
Pick a theme. Drill the pattern.
101,361 puzzles · curated and growing. Solve, see the answer, move to the next.
Mating patterns
♛
Mate in 1
Spot the one move that ends the game.
9139 puzzles
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♚
Mate in 2
Calculate two moves ahead to seal it.
11516 puzzles
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🏰
Back-Rank Mate
The 8th rank is undefended.
1553 puzzles
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Tactical motifs
⚔
Fork
Attack two pieces at once.
14053 puzzles
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📌
Pin
Freeze a piece against a higher one.
7233 puzzles
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🪓
Skewer
Attack a piece; what runs is yours.
2420 puzzles
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💥
Discovered Attack
Move one piece; another lands the punch.
6206 puzzles
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🎯
Sacrifice
Give up material for a winning attack.
9405 puzzles
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Game phase
♔
残局
King-and-pawn, rook endings, the basics.
49054 puzzles
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♘
Opening Tactics
Punish a known opening mistake.
5413 puzzles
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⚡ Currently 101,361 puzzles · growing weekly. Soon: 50,000+ from open puzzle libraries, filterable by your NCR rating.