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: queen to e7 (f6)
Winning blow: knight to d5 (e3·8)
Attack on the uncastled king: bishop to c6 (d5·4)
Attack on the uncastled king: queen to e8 (e1·5)
Winning blow: rook to b3 (h3)
Attack on the uncastled king: queen to e7 (e1·4)
Winning blow: queen to d3 (a6)
Attack on the uncastled king: queen to d6 (d1·3)
Winning blow: pawn to b7 (a6·4)
Winning blow: queen to d5 (d4)
Winning blow: rook to f1 (d1·3)
Winning blow: knight to e7 (d5·15)
Winning blow: queen to a7 (a6)
Winning blow: pawn to e7 (f6)
Attack on the uncastled king: knight to d6 (e4·12)
Winning blow: knight to g7 (f5·2)
Winning blow: rook to e7 (h7·2)
Attack on the uncastled king: knight to d2 (f1·2)
Winning blow: knight to g7 (f5·3)
Winning blow: queen to c2 (c1·2)
Winning blow: bishop to a8 (h1·4)
Winning blow: knight to d6 (f7·3)
Attack on the uncastled king: queen to e7 (d6)
Winning blow: queen to f8 (g7·3)
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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