Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: queen to h8 (h7·3)
Winning blow: knight to e6 (f4·3)
Winning blow: knight to e5 (d3·4)
Winning blow: knight to f6 (g4)
Winning blow: knight to g6 (e5)
Attack on the uncastled king: knight to f7 (g5·21)
Winning blow: queen to g5 (h4)
Winning blow: queen to d3 (h3)
Winning blow: knight to e7 (f5·5)
Winning blow: knight to e7 (d5·4)
Attack on the uncastled king: knight to f6 (h5)
Attack on the uncastled king: knight to a7 (b5·7)
Attack on the uncastled king: rook to g8 (g1·4)
Attack on the uncastled king: knight to f6 (e4·5)
Winning blow: queen to d6 (g3)
Attack on the uncastled king: knight to b7 (c5·13)
Attack on the uncastled king: knight to b6 (c4)
Winning blow: knight to d5 (c3·3)
Winning blow: queen to b4 (b6)
Attack on the uncastled king: queen to c8 (c1·3)
Winning blow: knight to f6 (e4·3)
Attack on the uncastled king: pawn to f6 (g5·15)
Winning blow: queen to h1
Winning blow: knight to e6 (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