Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: queen to d6 (d3·7)
Winning blow: queen to d5 (d4·2)
Winning blow: rook to b7 (b3·4)
Winning blow: rook to b7 (b3·5)
Winning blow: knight to f6 (h5·14)
Winning blow: knight to d7 (b6·4)
Winning blow: bishop to d5 (f3·6)
Attack on the uncastled king: rook to e8 (a8)
Winning blow: queen to b5 (c6·2)
Winning blow: queen to d4 (e4·2)
Winning blow: queen to a8 (e8·2)
Attack on the uncastled king: rook to e8 (e1·21)
Winning blow: rook to d5 (f5)
Winning blow: rook to d8 (b8·2)
Winning blow: queen to b7 (f3·6)
Winning blow: queen to h7 (h6·4)
Winning blow: knight to e5 (d3·18)
Winning blow: knight to e6 (d4·17)
Winning blow: knight to f5 (d4·5)
Winning blow: bishop to b7 (h1·7)
Winning blow: knight to f5 (e7·3)
Attack on the uncastled king: queen to d6 (d5·3)
Winning blow: knight to e7 (f5·26)
Winning blow: rook to e7 (e4)
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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