Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: knight to d7 (e5·10)
Winning blow: queen to g7 (h8)
Winning blow: knight to f7 (e5·4)
Winning blow: queen to f4 (f2·3)
Attack on the uncastled king: knight to f6 (g4·4)
Winning blow: bishop to e5 (d4·2)
Attack on the uncastled king: knight to f6 (g4·5)
Attack on the uncastled king: knight to e7 (f5·11)
Attack on the uncastled king: knight to d7 (c5·15)
Winning blow: knight to b6 (c4·2)
Winning blow: knight to c6 (e5·9)
Attack on the uncastled king: knight to e6 (c5·16)
Winning blow: pawn to g7 (g6)
Attack on the uncastled king: knight to f6 (d5·6)
Attack on the uncastled king: bishop to g7 (h6·7)
Winning blow: knight to f4 (h5)
Winning blow: knight to d6 (f5·6)
Winning blow: knight to e6 (c7·2)
Winning blow: queen to f7 (e8)
Winning blow: knight to c5 (a4·2)
Winning blow: queen to d8 (g5)
Winning blow: queen to c4 (b4)
Attack on the uncastled king: knight to c7 (b5·24)
Winning blow: knight to e5 (g4)
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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