Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
3622 puzzles
Fork: knight to f6 (g4·2)
Mate in 2: queen to d8 (d2·2)
Attack on the uncastled king: queen to g7 (c3·3)
Attack on the uncastled king: queen to f8 (f5·2)
Attack on the uncastled king: queen to g7 (c3·4)
Attack on the uncastled king: queen to f6 (d4·2)
Mate in 2: queen to b6 (f6)
Attack on the uncastled king: queen to g8 (e6)
Mate in 2: queen to h7 (f5)
Mate in 2: rook to d8 (d1·11)
Attack on the uncastled king: queen to e8 (e2·6)
Mate in 2: queen to g8 (g6·2)
Mate in 2: queen to d8 (d3)
Mate in 2: knight to d7 (b6)
Mate in 2: queen to d7 (d6)
Attack on the uncastled king: queen to g8 (g4·2)
Attack on the uncastled king: queen to b8 (b5·2)
Mate in 2: queen to f8 (h8)
Mate in 2: queen to f8 (f3)
Attack on the uncastled king: queen to f8 (f2·3)
Mate in 2: queen to f7 (f1·2)
Mate in 2: queen to h8 (e8·3)
Mate in 2: queen to a7 (a6)
Mate in 2: queen to h8 (d4)
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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