Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Mate in 2: rook to f1 (f2)
Mate in 2: knight to f6 (e4·5)
Attack on the uncastled king: pawn to b7 (a6·6)
Winning blow: bishop to c5 (g1·5)
Attack on the uncastled king: bishop to e5 (c3·4)
Attack on the uncastled king: queen to e4 (e2·4)
Attack on the uncastled king: bishop to c6 (e4·8)
Attack on the uncastled king: rook to e3 (e1·3)
Winning blow: rook to h8 (h1·5)
Winning blow: bishop to d5 (f3)
Attack on the uncastled king: bishop to d5 (c4·3)
Winning blow: queen to f6 (e7)
Winning blow: queen to f4 (f1·2)
Attack on the uncastled king: bishop to d5 (h1·26)
Attack on the uncastled king: rook to e1 (f1·2)
Winning blow: rook to e5 (e1·6)
Winning blow: queen to d5 (f3·4)
Winning blow: bishop to d4 (a1·2)
Winning blow: pawn to d7 (c6·5)
Attack on the uncastled king: queen to c5 (b6)
Attack on the uncastled king: queen to h4 (h3·4)
Winning blow: queen to h6 (d2·2)
Attack on the uncastled king: rook to d8 (d3)
Attack on the uncastled king: pawn to h6 (g5·17)
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