Chess960 puzzles: Absolute pin
A piece is pinned against its king — it cannot legally move.
An absolute pin freezes a piece on the line between its own king and your long-range attacker: moving it is simply illegal. The pattern is three units on one straight line — your bishop, rook or queen, an enemy piece, and the enemy king behind it. A pinned piece neither attacks nor defends anything: treat it as if it were off the board. Pile up on it, ideally with a pawn, because running away is against the rules.
643 puzzles
Mate in 1: rook to e8 (e3)
Mate in 1: rook to e8 (e1·4)
Mate in 1: knight to c5
Mate in 2: queen to h7 (c2)
Mate in 3: rook to f8
Attack on the uncastled king: pawn to b6 (a5·18)
Attack on the uncastled king: queen to g6 (h5)
Winning blow: pawn to e5 (f4·10)
Winning blow: queen to f5 (g6)
Attack on the uncastled king: queen to c4 (c5)
Winning blow: knight to d6 (c4)
Winning blow: bishop to d5 (b3)
Winning blow: pawn to g6 (h5)
Winning blow: rook to g6 (g3·2)
Winning blow: pawn to d6 (e5·5)
Attack on the uncastled king: rook to e1 (f1)
Winning blow: rook to b8 (b3)
Winning blow: bishop to a4 (c2)
Attack on the uncastled king: rook to d1 (b1)
Winning blow: rook to h8 (g8)
Winning blow: queen to a5 (d5)
Winning blow: rook to c7 (c1·4)
Attack on the uncastled king: pawn to b6 (a5·20)
Attack on the uncastled king: bishop to f4 (g3·3)
Tactics
BatteryCheck chaseClearanceDecoyDeflectionDiscovered attackDiscovered checkDouble checkWinning exchangeBishop forkKnight forkPawn forkQueen forkRook forkRoyal forkHanging pieceInterferenceOverloadRelative pinWin the pinned piecePromotionQueen trapQuiet moveRemove the defenderSacrifice attackSkewerTrapped pieceUnderpromotionWinning blowX-rayZwischenzug