Chess960 puzzles: Discovered attack
A piece steps aside and opens a second attack from the piece behind it.
982 puzzles
Discovered attack: knight to e5 (c4)
Discovered attack: bishop to h7 (d3·9)
Pin: pawn to f4
Discovered attack: rook to g7 (c7)
Winning blow: bishop to g6 (e4·4)
Discovered attack: queen to c8 (c6)
Rescue the knight to e5 (f3)
Pin: rook to h7
Mate in 2: double attack on e4
Mate in 3: bishop to e6 (c8·2)
Mate in 3: knight to g5 (f7)
Mate in 3: rook to f5 (d5)
Mate in 3: knight to e5 (g6·3)
Discovered attack: rook to g2
Winning blow: bishop to c4 (b5·4)
Winning blow: rook to e4 (d4)
Winning blow: pawn to g7 (h6·5)
Winning blow: pawn to b7 (a6·8)
Attack on the uncastled king: pawn to c5 (d4·63)
Winning blow: rook to e6 (c6·2)
Winning blow: knight to b4 (d3·7)
Winning blow: rook to f5 (e5·3)
Winning blow: pawn to f6 (g5·18)
Winning blow: rook to g2 (e2·2)
Tactics
BatteryCheck chaseClearanceDecoyDeflectionDiscovered checkDouble checkWinning exchangeBishop forkKnight forkPawn forkQueen forkRook forkRoyal forkHanging pieceInterferenceOverloadAbsolute pinRelative pinWin the pinned piecePromotionQueen trapQuiet moveRemove the defenderSacrifice attackSkewerTrapped pieceUnderpromotionWinning blowX-rayZwischenzug