Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Attack on the uncastled king: queen to e8 (g6·2)
Winning blow: queen to a8 (f3)
Winning blow: queen to e7 (b4)
Attack on the uncastled king: rook to g5 (g1·2)
Attack on the uncastled king: queen to h6 (h3·2)
Winning blow: queen to e5 (a5)
Winning blow: queen to e5 (h5)
Winning blow: bishop to c6 (b5·5)
Winning blow: queen to a6 (a3·3)
Attack on the uncastled king: bishop to d5 (e4·5)
Winning blow: queen to e8 (e4)
Winning blow: pawn to g5 (h4·9)
Attack on the uncastled king: rook to b7 (b1·3)
Winning blow: rook to a8 (f8)
Attack on the uncastled king: knight to d5 (e3·13)
Mate in 2: queen to h2 (f4)
Mate in 1: queen to e1 (h4·2)
Mate in 2: queen to h7 (d3·4)
Mate in 2: bishop to e7
Attack on the uncastled king: rook to b8 (b2·2)
Mate in 2: queen to h6 (h5)
Mate in 2: queen to e5
Mate in 2: queen to h6 (g5)
Attack on the uncastled king: queen to h5 (f5)
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