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 c5 (b3·15)
Winning blow: knight to d6 (b5·9)
Winning blow: queen to f6 (b2·5)
Winning blow: queen to e5 (a1·4)
Winning blow: queen to a8 (a6·3)
Winning blow: rook to e8 (e1·9)
Winning blow: bishop to c4 (b5·2)
Winning blow: knight to e4 (c5·4)
Winning blow: queen to d7 (g4·4)
Winning blow: queen to d5 (e4)
Winning blow: knight to d6 (c4·4)
Winning blow: knight to d6 (b5·10)
Winning blow: rook to d1 (c1·2)
Winning blow: rook to f8 (f4·6)
Winning blow: knight to d6 (f5·13)
Winning blow: queen to h6 (c1·3)
Winning blow: knight to d8 (f7)
Winning blow: queen to e6 (e4·2)
Attack on the uncastled king: queen to d6 (a6)
Winning blow: knight to e5 (d3·13)
Attack on the uncastled king: knight to c6 (a5·4)
Winning blow: queen to a8 (a7·5)
Attack on the uncastled king: knight to f6 (g4·7)
Winning blow: knight to c6 (b4·6)
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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