Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Mate in 3: queen to d5 (f5·2)
Mate in 3: rook to c7 (c5·2)
Mate in 3: queen to f7 (f2·2)
Attack on the uncastled king: bishop to a6 (f1·16)
Mate in 3: queen to g4 (b4)
Mate in 3: pawn to b3 (c2)
Mate in 3: pawn to c7 (c6·2)
Mate in 3: queen to h4 (d4)
Mate in 3: knight to e7 (d5)
Mate in 3: queen to e7 (e3)
Mate in 3: pawn to b5 (b4)
Mate in 3: queen to c3 (b2)
Mate in 2: bishop to e6 (f5)
Mate in 3: queen to d5 (f5·3)
Mate in 3: queen to a3 (b2)
Mate in 3: queen to e6 (b6)
Attack on the uncastled king: queen to f3 (b3)
Attack on the uncastled king: bishop to b4 (e1·11)
Attack on the uncastled king: queen to d6 (e7·3)
Mate in 3: queen to a7 (a5·2)
Mate in 3: queen to f7 (e6)
Attack on the uncastled king: knight to b7 (a5·29)
Mate in 3: queen to g4 (e4)
Mate in 3: rook to d4 (d1)
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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