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 e7 (e2·6)
Mate in 2: queen to a7 (a4)
Mate in 2: rook to h7 (e7)
Mate in 2: queen to b7 (g2)
Mate in 2: rook to h7 (g7·2)
Mate in 2: queen to f7 (g8)
Attack on the uncastled king: queen to g8 (g3·5)
Mate in 2: queen to e8 (f7·4)
Mate in 2: queen to d8 (d5·2)
Mate in 2: rook to c8 (c6)
Mate in 2: bishop to g6 (f7)
Attack on the uncastled king: queen to d7 (d6)
Mate in 2: bishop to g6 (h5)
Mate in 2: queen to c8 (g4·2)
Attack on the uncastled king: rook to c8 (c4)
Mate in 2: queen to e8 (h5·4)
Attack on the uncastled king: rook to d8 (d5·4)
Mate in 2: queen to h8 (h7·3)
Mate in 2: queen to d8 (g8·2)
Mate in 2: queen to g8 (g4)
Mate in 2: queen to d7 (f5)
Mate in 2: queen to e8 (e3·4)
Mate in 2: queen to b8 (a7·3)
Mate in 2: knight to d8
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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