Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Mate in 2: queen to a8 (d5)
Mate in 2: knight to g5 (f7)
Mate in 2: knight to f2
Mate in 2: queen to a6 (e2)
Mate in 2: rook to b7 (b8·3)
Pin: knight to b3
Fork: knight to f4 (d5·3)
Back-rank mate in 3 on c8
Fork: queen to f2 (f7)
Discovered attack: rook to g3
Mate in 2: rook to h7 (c7)
Fork: queen to c5 (a5)
Winning blow: queen to h5 (h1)
Attack on the uncastled king: knight to d5 (c3·24)
Winning blow: queen to a3 (c1)
Winning blow: queen to d5 (e5·4)
Winning blow: rook to e3 (e5)
Winning blow: king to a2 (b1·25)
Winning blow: pawn to c7 (c6·4)
Attack on the uncastled king: king to g3 (f2)
Attack on the uncastled king: knight to f5 (h4)
Winning blow: pawn to a7 (a6·4)
Winning blow: rook to e3 (g3)
Winning blow: king to f3 (e4·2)
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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