Chess960 puzzles: Relative pin
A piece shields a more valuable one behind it — moving it loses material.
511 puzzles
Mate in 2: knight to c6 (e5·4)
Mate in 2: pawn to g4 (g2·3)
Attack on the uncastled king: bishop to e5 (a1·24)
Winning blow: queen to g5 (g6)
Winning blow: knight to e6 (g5·17)
Winning blow: rook to c6 (c5·3)
Winning blow: queen to c4 (h4·2)
Attack on the uncastled king: bishop to c6 (h1·14)
Winning blow: queen to c8 (f8·2)
Winning blow: knight to a5 (b7·2)
Winning blow: rook to d6 (d1·21)
Winning blow: bishop to g4 (e2·8)
Winning blow: queen to e7 (d7·3)
Fork: bishop to d4 (b6·2)
Winning blow: queen to d5 (c6·3)
Mate in 3: knight to e4
Mate in 3: queen to a6 (c4·2)
Mate in 3: queen to a5 (e1)
Attack on the uncastled king: queen to d6 (f4·3)
Mate in 3: pawn to d3
Mate in 3: queen to f5 (c5)
Mate in 3: bishop to e2
Mate in 3: queen to h7 (h4)
Mate in 3: queen to a8 (c6·2)
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