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 c7 (b5·16)
Winning blow: knight to f5 (e3·8)
Winning blow: knight to f7 (g5·2)
Attack on the uncastled king: knight to f6 (d5·5)
Winning blow: knight to f5 (e3·9)
Attack on the uncastled king: knight to c7 (b5·17)
Winning blow: knight to c4 (e3·2)
Winning blow: knight to c6 (b4·2)
Winning blow: queen to d7
Winning blow: queen to e8 (e5)
Winning blow: rook to d7 (d3)
Winning blow: queen to d8 (h8)
Winning blow: knight to e6 (d4·3)
Attack on the uncastled king: queen to b3 (b2)
Winning blow: queen to f6 (b2·2)
Winning blow: knight to e7 (g6·3)
Winning blow: queen to g3 (e1)
Attack on the uncastled king: knight to c7 (b5·19)
Attack on the uncastled king: queen to a6 (f1·4)
Attack on the uncastled king: knight to d6 (b5·5)
Winning blow: knight to c7 (d5·4)
Winning blow: knight to e7 (d5·5)
Attack on the uncastled king: queen to f5 (b1·5)
Winning blow: knight to d7 (f6·2)
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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