Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Fork: queen to f1 (b5)
Discovered attack: rook to g7 (c7)
Fork: rook to e1 (g1)
Attack on the uncastled king: knight to b2 (d3·7)
Mate in 2: pin on g6 (g8)
Mate in 3: double attack on b6
Fork: knight to e8 (f6·2)
Mate in 3: rook to g2 (g8)
Fork: queen to b3 (c2)
Fork: rook to f2 (d2)
Mate in 1: pin on h7 (h2)
Deflection: queen to d6 (f8)
Fork: queen to d5 (d1)
Back-rank mate in 2 on c1 (c8·3)
Mate in 3: discovered attack on g7
Fork: knight to c1
Skewer: rook to f5
Attack on the uncastled king: queen to d8 (d5·2)
Mate in 3: queen to c7 (c3·2)
Mate in 3: rook to g7 (f7·3)
Mate in 3: rook to e7 (e5·4)
Mate in 3: queen to e6 (b3·4)
Mate in 3: rook to f8 (f7·3)
Mate in 3: rook to c7 (c1·3)
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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