Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Fork: queen to c2 (g6)
Fork: queen to f4 (h4)
Discovered attack: knight to f6 (e4·4)
Fork: knight to a4
Fork: queen to g7
Fork: bishop to d4 (e5·4)
Fork: queen to b5
Discovered attack: knight to f3 (e5·6)
Mate in 3: double attack on g7 (g3)
Attack on the uncastled king: knight to d7 (e5·21)
Mate in 3: queen to f7 (c4·4)
Mate in 3: rook to a3 (b3·2)
Mate in 3: queen to a6 (b5·3)
Mate in 3: pawn to h4 (h2)
Mate in 3: bishop to d6 (e5·2)
Mate in 3: rook to b4 (a4)
Mate in 3: pawn to a6 (b5)
Mate in 3: queen to e7 (e4·2)
Mate in 3: rook to a7 (a1·3)
Mate in 3: queen to f7 (d5·3)
Mate in 3: queen to h8 (h7·5)
Mate in 3: queen to b2 (e2)
Mate in 3: queen to c5 (f8·5)
Mate in 3: queen to f7 (e6·4)
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Tactics
BatteryCheck chaseClearanceDecoyDeflectionDiscovered attackDiscovered checkDouble checkWinning exchangeBishop forkKnight forkPawn forkQueen forkRook forkHanging pieceInterferenceOverloadAbsolute pinRelative pinWin the pinned piecePromotionQueen trapQuiet moveRemove the defenderSacrifice attackSkewerTrapped pieceUnderpromotionWinning blowX-rayZwischenzug