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 b7 (c5·19)
Winning blow: rook to f1 (b1·2)
Attack on the uncastled king: bishop to e5 (h2·3)
Winning blow: queen to c6 (c5·5)
Winning blow: queen to e8 (h5·2)
Winning blow: pawn to f7 (g6·2)
Attack on the uncastled king: knight to d7 (e5·17)
Winning blow: queen to h8 (h7·8)
Winning blow: queen to d3 (c3·3)
Winning blow: bishop to e4 (h1·3)
Winning blow: knight to b6 (d5·8)
Winning blow: pawn to e4 (f3·15)
Winning blow: queen to g6 (h5·4)
Attack on the uncastled king: knight to d7 (e5·18)
Attack on the uncastled king: queen to f5 (e4)
Winning blow: rook to f8 (f1·9)
Winning blow: queen to e5 (c7·2)
Winning blow: king to c2 (b2·3)
Winning blow: rook to d8 (d3·4)
Winning blow: rook to e8 (e1·12)
Winning blow: rook to f4 (h4·2)
Winning blow: bishop to b8 (d6)
Winning blow: pawn to d6 (d5·5)
Winning blow: queen to h7 (h6·3)
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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