Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: knight to b6 (d5·3)
Winning blow: queen to g8 (e8)
Winning blow: queen to d7 (f5·2)
Winning blow: queen to e7 (e4·2)
Winning blow: queen to f6 (h8·2)
Attack on the uncastled king: knight to c6 (e7·2)
Winning blow: queen to d7 (b5)
Winning blow: rook to c8 (c7·3)
Winning blow: queen to b2 (c1)
Winning blow: knight to c6 (d4·5)
Winning blow: queen to g6 (e8)
Winning blow: queen to e8 (c8·2)
Winning blow: queen to g7 (e5·3)
Winning blow: queen to c6 (f3·2)
Winning blow: queen to d5 (f3·2)
Winning blow: rook to d8 (d7·4)
Winning blow: queen to f7 (f1·2)
Winning blow: queen to f6 (f3)
Attack on the uncastled king: queen to c8 (f5·2)
Winning blow: queen to h7 (d3·2)
Winning blow: queen to c6 (b5·2)
Winning blow: rook to c7 (c3)
Winning blow: queen to b7 (h1)
Attack on the uncastled king: queen to c8 (d7)
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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