Chess960 puzzles: Royal fork
A fork with check: the king must move, and the second piece is lost.
A royal fork is a fork with check — one of the two targets is the king itself. The check must be answered first, so nobody is left to rescue the second piece. Look for squares where your piece gives check and simultaneously attacks an undefended queen or rook. It is the most reliable fork of all, because your opponent literally has no choice.
3622 puzzles
Fork: bishop to e3
Mate in 2: queen to d5
Fork: knight to g5
Mate in 2: queen to f8
Back-rank mate in 2 on d1
Mate in 1: queen to d8
Attack on the uncastled king: queen to d8 (h4)
Attack on the uncastled king: queen to e8 (e5)
Attack on the uncastled king: queen to g8 (h7)
Attack on the uncastled king: queen to g8 (a2)
Mate in 2: queen to e1
Mate in 1: knight to b6
Back-rank mate in 2 on d1 (d7)
Mate in 2: rook to d1
Fork: knight to d5
Mate in 2: queen to b8
Mate in 1: queen to g2 (g5)
Fork: knight to c5
Fork: knight to e2
Fork: knight to e7
Mate in 2: rook to e1
Back-rank mate in 2 on d8
Fork: knight to e2 (c3)
Fork: knight to 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