Chess tactics
Discovered Attack: Unmask a Hidden Threat
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A discovered attack happens when one piece moves out of the way and uncovers an attack by a bishop, rook, or queen behind it. If the moving piece creates a useful threat of its own, the move can present two problems at once. The defender may still have a reply that meets both.
On this page
Discovered Attack: what it is and how it works
Set up a discovery with three ingredients: a long-range piece (bishop, rook, or queen) aimed at an enemy target, a friendly piece sitting in the way, and a good reason for that front piece to move. When it leaves, the rear piece's attack is "discovered". The real power comes from making the front piece do damage as it goes — capturing a piece, giving check, or threatening mate — so the opponent faces two problems at once.
In a discovered check, moving the front piece uncovers a line attack on the king. The reply must resolve the check, which can give the moving piece time to capture or attack elsewhere. It is not automatically safe: a king move may capture that piece, or a reply that blocks or removes the rear checker may also address the second threat. Calculate the checking response before valuing what the front piece has gained.
How to spot it over the board
- Look for one of your own pieces blocking your bishop, rook, or queen's line to an enemy target — that blocker is your discovery trigger.
- When the uncovered line gives check, look for a useful capture or threat by the moving piece, then test whether any legal check response answers both ideas.
- Hunt for front-piece moves that themselves attack something valuable, so both threats bite.
- Notice enemy pieces screening a bishop, rook, or queen from your king; moving that screen may create a discovered check with a second threat.
A common calculation error
Uncovering an attack is not enough if the defender can meet it comfortably. Prefer a move by the front piece that creates a second useful threat, but also inspect replies that solve both problems at once. A capture, check, interposition, or counterattack can change the apparent move order.
How hard are these puzzles?
This collection contains 76 discovered attack puzzles, with a recorded median rating of 1509 and a dataset range from 638 to 2259. Puzzle ratings are estimates produced by results in their source pool; they can change and should be read as a guide for choosing practice, not as an objective measure of difficulty.
- Puzzles tagged
- 76
- Lowest recorded rating
- 638
- Recorded median
- 1509
- Highest recorded rating
- 2259
Discovered Attack puzzles to solve
These positions come from the LibreChess trainer and are ordered by the rating stored in this dataset. Play your candidate move on the board, then compare it with the listed solution and replay the continuation.
Worked example 1 — rated 638
Black to move. Find the discovered attack, then reveal the solution.
35... Rd1+ 36. Rxd1 36... Qxe4Worked example 2 — rated 1188
White to move. Find the discovered attack, then reveal the solution.
31. Ne7+ 31... Bxe7 32. Bxf7+ 32... Bxf7 33. Rxc8+Worked example 3 — rated 1515
Black to move. Find the discovered attack, then reveal the solution.
32... Rxh3+ 33. Bxh3 33... Qxg1#Worked example 4 — rated 1818
Black to move. Find the discovered attack, then reveal the solution.
39... Be2+ 40. R1xe2 40... Qxd4Worked example 5 — rated 2259
White to move. Find the discovered attack, then reveal the solution.
32. Rxd5+ 32... exd5 33. e6+ 33... Kd6 34. Qxb2Keep training by rating
Choose a rating band as a starting point. If the positions are routinely immediate or opaque, move one band up or down; puzzle ratings are pool estimates rather than fixed grades.