Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Attack on the uncastled king: knight to f6 (d7)
Mate in 3: knight to h5
Mate in 3: rook to b1 (c1·3)
Mate in 3: knight to f5 (d4·4)
Mate in 3: knight to f6 (d7·2)
Mate in 3: knight to a5 (c6·2)
Mate in 3: queen to f6 (f5·3)
Mate in 3: bishop to c6 (d5·4)
Mate in 3: rook to d7 (d5·4)
Mate in 3: queen to c4 (b3·2)
Mate in 3: queen to e8 (e2·2)
Attack on the uncastled king: knight to g7 (f5·31)
Mate in 3: rook to e1 (f1·3)
Mate in 3: rook to h7 (h5·4)
Mate in 3: pawn to e5 (d4)
Mate in 3: king to g1 (h2·3)
Mate in 3: bishop to f6 (b2)
Mate in 3: queen to f7 (f5·4)
Mate in 3: knight to e7 (d5·3)
Mate in 3: queen to c6 (f6·2)
Mate in 3: queen to c7 (b8·2)
Mate in 3: queen to c4 (c3)
Mate in 3: queen to b8 (b2·2)
Mate in 3: rook to f3 (f1·2)
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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