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 d7 (e5·8)
Attack on the uncastled king: knight to d7 (c5·4)
Attack on the uncastled king: knight to e6 (d4·7)
Attack on the uncastled king: knight to c7 (b5·9)
Attack on the uncastled king: knight to d7 (c5·6)
Attack on the uncastled king: knight to d7 (c5·7)
Attack on the uncastled king: knight to e6 (d4·8)
Attack on the uncastled king: knight to d7 (c5·8)
Attack on the uncastled king: knight to d7 (f6)
Attack on the uncastled king: knight to f6 (g4·2)
Attack on the uncastled king: knight to c7 (d5·12)
Attack on the uncastled king: knight to e6 (g5·7)
Attack on the uncastled king: knight to d6 (e4·6)
Attack on the uncastled king: knight to d7 (e5·9)
Attack on the uncastled king: knight to f7 (g5·16)
Attack on the uncastled king: knight to e6 (d4·9)
Attack on the uncastled king: bishop to c6 (h1·7)
Attack on the uncastled king: knight to f7 (g5·17)
Winning blow: queen to e7 (h4·2)
Attack on the uncastled king: queen to f6 (h4)
Attack on the uncastled king: knight to c7 (b5·10)
Attack on the uncastled king: knight to c7 (d5·13)
Winning blow: knight to f5 (e3·5)
Attack on the uncastled king: knight to e6 (d4·10)
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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