Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Winning blow: bishop to f4 (c1·4)
Attack on the uncastled king: queen to a5 (a6·3)
Winning blow: pawn to c7 (c6·8)
Winning blow: king to e1 (d1·18)
Winning blow: knight to c6 (a5·8)
Winning blow: bishop to g3 (h4·3)
Attack on the uncastled king: queen to e5 (e1·3)
Winning blow: rook to b1 (d1·6)
Attack on the uncastled king: queen to b2 (c1)
Winning blow: rook to e2 (g2)
Attack on the uncastled king: bishop to a2 (b1·5)
Mate in 2: pawn to h6 (h5)
Mate in 2: queen to f1 (b5)
Attack on the uncastled king: queen to e8 (e7·3)
Winning blow: queen to d8 (d4·2)
Winning blow: queen to f5 (b1·6)
Winning blow: rook to e8 (e4·5)
Winning blow: queen to h8 (f6·2)
Winning blow: queen to e6 (a2·4)
Winning blow: queen to g6 (h6·3)
Attack on the uncastled king: queen to f4 (d2·4)
Winning blow: queen to d6 (d3·7)
Winning blow: queen to b7 (h1·4)
Winning blow: rook to b6 (b2·4)
Tactics
BatteryCheck chaseClearanceDecoyDeflectionDiscovered attackDiscovered checkDouble checkWinning exchangeBishop forkKnight forkPawn forkQueen forkRook forkRoyal forkHanging pieceInterferenceOverloadAbsolute pinWin the pinned piecePromotionQueen trapQuiet moveRemove the defenderSacrifice attackSkewerTrapped pieceUnderpromotionWinning blowX-rayZwischenzug