• Lesson 23 of 32
  • More tactics
  • 3 min

Discovered Attack in Chess: Unmask a Hidden Attacker

In a discovered attack, one piece moves and another attacks. The piece that moves is a mask: take it away, and a rook, bishop or queen behind it suddenly has an open line. If the piece that moves makes a threat of its own, your opponent faces two at once and can answer only one.

Step 1 of 4

  1. The mask

    Your rook on d1 would attack the black queen on d8, but your own bishop on d3 stands in the way. The moment the bishop moves, the rook's attack is discovered. But once the bishop moves, the queen attacks your rook as well, so the bishop must move with a threat Black has to answer first. Here it can take the pawn on h7 with check.

  2. Discovered attack with check

    Take the h7 pawn with your bishop. It's check, so Black has to deal with the king first, and next move your rook takes the queen.

    Your move

    Win the black queen.

  3. Two targets

    No check this time. The bishop on e4 stands between your rook on e1 and the black queen on e6. Move it so that it attacks something as well: Black can't save the queen and a second target with one move.

    Your move

    Uncover the attack on the queen with a bishop move that makes a second threat, then collect.

  4. A trap from the opening

    This happens in real games. After 1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nxe4?! 4.Qe2 Nf6??, your queen and the black king stand on the open e-file with only your knight on e5 between them. Every knight move is a discovered check. Find the one that also attacks the queen.

    Your move

    Win the black queen with a discovered check.

What you learned

  • A discovered attack: one piece moves, and the piece behind it attacks.
  • Move the front piece with a threat of its own, ideally check, so the opponent can't meet both.
  • A discovered check gives the opponent no time: the king comes first, and the other threat lands.
  • Without check, the front piece needs a threat of its own; otherwise the opponent just moves the attacked piece away.

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