Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Winning blow: queen to a6 (a7·4)
Fork: bishop to e5 (d4)
Fork: queen to d3
Winning blow: bishop to c6 (h1·6)
Attack on the uncastled king: queen to e4 (d4·3)
Winning blow: knight to c6 (e5·22)
Attack on the uncastled king: rook to f7 (f1·5)
Winning blow: knight to d6 (b5·15)
Attack on the uncastled king: knight to d6 (f5·21)
Winning blow: queen to a7 (a3·4)
Attack on the uncastled king: bishop to d7 (c6·2)
Winning blow: knight to b6 (c4·12)
Attack on the uncastled king: rook to g7 (g3·2)
Winning blow: queen to e6 (e2·4)
Winning blow: rook to d7 (d4·5)
Winning blow: knight to f6 (h5·13)
Winning blow: knight to b6 (d7·4)
Winning blow: rook to c6 (d6)
Winning blow: knight to e5 (d3·17)
Attack on the uncastled king: queen to f7 (c4·5)
Winning blow: queen to d7 (e7)
Winning blow: queen to f6 (h8·5)
Winning blow: knight to g5 (f3·9)
Winning blow: knight to c6 (d4·12)
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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