Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Mate in 2: queen to b2 (e5)
Mate in 3: queen to c8 (c7·2)
Mate in 3: pawn to d6
Mate in 3: rook to d7 (d6)
Mate in 3: rook to g1
Mate in 2: pawn to g6 (g5·3)
Mate in 3: knight to b5
Mate in 3: rook to g7 (h7)
Mate in 3: queen to a6 (a3)
Mate in 3: rook to g4 (g1)
Mate in 3: queen to g6 (e4·2)
Mate in 3: queen to g5 (a5)
Mate in 2: queen to d6 (d4·2)
Mate in 3: rook to f8 (f2)
Mate in 3: queen to c7 (h2)
Mate in 3: knight to f7 (e5·2)
Mate in 3: queen to h8 (g7·3)
Mate in 3: queen to a5 (a4·2)
Mate in 3: queen to e6 (e5·2)
Mate in 2: rook to h3 (h2)
Mate in 3: knight to g5 (f3)
Mate in 3: bishop to f8 (c5)
Attack on the uncastled king: queen to a6 (e2·6)
Mate in 3: rook to g1 (h1·2)
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