Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: knight to c5 (d3·3)
Winning blow: rook to f8 (f4·3)
Winning blow: rook to d8 (d4)
Winning blow: knight to d7 (c5·4)
Attack on the uncastled king: queen to g6 (b1·3)
Attack on the uncastled king: knight to e7 (f5·10)
Winning blow: knight to b5 (d6·2)
Attack on the uncastled king: knight to c7 (b5·21)
Attack on the uncastled king: pawn to e7 (e6)
Winning blow: knight to d6 (f5·3)
Winning blow: knight to c6 (e7·2)
Winning blow: knight to d5 (e3·4)
Winning blow: knight to g7 (f5)
Attack on the uncastled king: knight to c6 (e5·9)
Winning blow: knight to c5 (d3·4)
Attack on the uncastled king: queen to d6 (d4·2)
Winning blow: pawn to b6 (b5)
Winning blow: knight to d7 (e5·6)
Winning blow: rook to c7 (e7)
Attack on the uncastled king: knight to d6 (c4·3)
Winning blow: knight to c6 (b4·3)
Winning blow: pawn to g6 (g5)
Winning blow: knight to g5 (f3·5)
Attack on the uncastled king: knight to c7 (d5·16)
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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