Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Mate in 2: queen to f5 (h3·3)
Mate in 2: pawn to c6
Mate in 2: bishop to a6 (b5)
Mate in 2: queen to b5 (b4·4)
Mate in 2: knight to e7 (f5·5)
Mate in 2: queen to g7 (g4·5)
Mate in 2: queen to a7 (a3)
Attack on the uncastled king: queen to d7 (d2·5)
Attack on the uncastled king: queen to d7 (d3·11)
Mate in 2: queen to g8 (g1)
Mate in 2: rook to e8 (e7·4)
Mate in 2: queen to h7 (f5·3)
Attack on the uncastled king: bishop to b6 (d4·5)
Mate in 2: rook to b7 (c7·3)
Mate in 2: queen to a6 (f1·4)
Mate in 2: queen to f7 (f5·4)
Mate in 2: rook to c7 (c6·3)
Attack on the uncastled king: queen to e7 (e5·2)
Mate in 1: queen to a3
Winning blow: bishop to e4 (b1·7)
Mate in 1: queen to f6 (f3)
Mate in 1: queen to d8 (h4)
Mate in 2: queen to h7 (d3·7)
Mate in 1: rook to d8 (d1·3)
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