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 f5 (f3·5)
Winning blow: knight to e7 (f5·11)
Winning blow: knight to b6 (c4·3)
Winning blow: knight to g5 (h3·3)
Winning blow: knight to e7 (d5·12)
Winning blow: knight to d4 (f3·2)
Winning blow: bishop to f6 (e5)
Winning blow: queen to a7 (c5)
Winning blow: knight to e7 (f5·12)
Winning blow: knight to e6 (d4·4)
Winning blow: queen to d8 (g5·2)
Attack on the uncastled king: knight to d6 (b5·9)
Winning blow: knight to c5 (d3·6)
Winning blow: knight to c7 (b5·4)
Winning blow: knight to c7 (b5·5)
Winning blow: knight to d6 (b5·4)
Winning blow: knight to c5 (b3·5)
Attack on the uncastled king: knight to d6 (e4·11)
Winning blow: knight to d7 (c5·8)
Attack on the uncastled king: knight to d6 (f5·17)
Winning blow: queen to c7 (b7)
Winning blow: queen to c4 (g8·2)
Winning blow: knight to e7 (f5·13)
Winning blow: queen to f5 (f4)
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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