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: knight to c6 (e5·13)
Attack on the uncastled king: knight to c6 (d4·8)
Winning blow: knight to e5 (f3·9)
Attack on the uncastled king: bishop to a7 (e3·3)
Winning blow: knight to d6 (b5·7)
Winning blow: bishop to f7 (d5·3)
Winning blow: knight to e5 (f3·10)
Attack on the uncastled king: bishop to d7 (b5·6)
Winning blow: knight to e6 (d4·8)
Winning blow: rook to d8 (d5)
Attack on the uncastled king: rook to d8 (d4·3)
Winning blow: bishop to c5 (f2·2)
Attack on the uncastled king: rook to c4 (b4)
Winning blow: rook to g5 (g4·2)
Winning blow: bishop to c6 (d5)
Winning blow: knight to e5 (f3·11)
Winning blow: bishop to d7 (h3·3)
Winning blow: knight to c6 (e5·13)
Winning blow: knight to b5 (d4·2)
Winning blow: knight to c6 (e5·14)
Winning blow: rook to c7 (c4·3)
Winning blow: knight to f6 (e4·11)
Winning blow: queen to e7 (e3)
Attack on the uncastled king: knight to c6 (e5·14)
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