Chess960 puzzles: Discovered attack
A piece steps aside and opens a second attack from the piece behind it.
982 puzzles
Attack on the uncastled king: bishop to h7 (b1·4)
Attack on the uncastled king: bishop to a7 (e3·4)
Attack on the uncastled king: knight to c6 (e5·15)
Winning blow: rook to a5 (a4)
Attack on the uncastled king: knight to d7 (c5·18)
Attack on the uncastled king: bishop to b6 (e3·3)
Attack on the uncastled king: knight to c7 (d5·24)
Winning blow: bishop to f5 (c2·3)
Winning blow: rook to f8 (f4·5)
Winning blow: rook to d8 (d4·5)
Attack on the uncastled king: bishop to h7 (d3·4)
Attack on the uncastled king: knight to e6 (c5·19)
Winning blow: knight to e5 (c4·5)
Winning blow: knight to b5 (d6·4)
Winning blow: knight to g6 (e5·4)
Winning blow: rook to d7 (c7·3)
Winning blow: rook to d3 (d4)
Winning blow: bishop to g4 (d1·4)
Attack on the uncastled king: bishop to g6 (b1·13)
Attack on the uncastled king: bishop to c6 (f3·2)
Attack on the uncastled king: bishop to h7 (e4)
Winning blow: bishop to g7 (d4·2)
Winning blow: knight to d6 (b5·8)
Winning blow: rook to g7 (g3·3)
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