Discovered Attack Chess Trainer: Examples, Replays & Practice

A discovered attack in chess is a move that opens a line for a bishop, rook, or queen while the moving piece creates another threat. The defender often cannot answer both the revealed attack and the moving piece’s threat at the same time. Start with the Discovered Attack Adviser, then solve De Veauce vs. Cafferty in the trainer.

A discovered attack works when a front piece moves away from a line and reveals the power of a rear line piece. The rear piece was already aimed at a target, but the line was blocked until the front piece moved. Use the Reveal answer button on De Veauce vs. Cafferty and name the front piece, rear piece, and target.

A discovered attack reveals an attack on any important target, while a discovered check reveals an attack on the king. Discovered check is usually more forcing because the king threat must be answered immediately. Compare Petroff opening mistake with Reti vs. Tartakower in the puzzle trainer.

A double check happens when both the moving piece and the revealed piece check the king at the same time. Because two checks are active, the king normally has to move rather than block or capture just one attacker. Use Reti vs. Tartakower and Norwood vs. Marsh as double-check examples.

Discovered attacks are powerful because one move can create two problems at once. The defender may stop the first threat but lose to the second. Use Uhlmann vs. Schwartz and Nikolic vs. Topalov to practise naming both threats before revealing the answer.

The hidden line is usually created by a bishop, rook, or queen because those pieces attack along files, ranks, and diagonals. The moving front piece can be a knight, pawn, rook, bishop, queen, or king if it clears the line. Use the trainer cards and identify the rear line piece before pressing Replay solution.

Yes, a knight is often the moving piece because it jumps away with tempo while opening a bishop, rook, or queen line. A knight move can also give check, fork, or attack a queen at the same time. Use Keres vs. Spassky and Kholmov combination to practise knight discoveries.

Yes, a pawn can create a discovered attack by advancing and opening a rook, bishop, or queen line behind it. Pawn discoveries are easy to miss because the pawn move can look quiet. Use the checklist section and then compare the opening examples where line geometry changes suddenly.

No, a fork is one piece attacking two targets, while a discovered attack uses one piece moving to reveal another piece’s attack. They can overlap when the moving piece creates a fork and the rear piece attacks something else. Use Kholmov combination and Uhlmann vs. Schwartz to compare the mechanisms.

No, a pin restricts a defender along a line, while a discovered attack opens your own line by moving a front piece. Pins often make discovered attacks stronger because the defender has fewer legal or practical resources. Use Petroff opening mistake and the InGuides links to compare pin and discovered-attack pages.

The best first example is De Veauce vs. Cafferty because it clearly shows the front knight moving and the rear bishop line winning the queen. The solution is short enough to make the geometry visible. Start there, reveal the answer, then replay the solution.

Reti vs. Tartakower is the cleanest discovered-check and double-check pattern here. The queen sacrifice pulls the king into a position where the revealed line decides the game. Use Replay solution on Reti vs. Tartakower after solving the first move yourself.

De Veauce vs. Cafferty, Petroff opening mistake, and Kholmov combination are strong queen-winning or queen-damaging examples. They show that the queen often becomes vulnerable when the front piece moves with tempo. Use the adviser’s queen target setting to jump to the right card.

Uhlmann vs. Schwartz, Sundararajan vs. Bensdorp, Sysoenko vs. Demkovic, and Polgar vs. Pliester are good mate-threat examples. They show that the discovered attack can widen from material pressure into a king attack. Use the adviser’s mate setting to practise this group.

Look for two friendly pieces lined up on a file, rank, or diagonal with one piece blocking the other. Then ask whether the front piece can move with check, capture, queen attack, or mate threat. Use the Discovered Attack Checklist and then solve each trainer card without revealing the answer.

Calculate whether the moving piece lands safely, whether the rear attack is real, and whether the defender has one move that solves both threats. Checks, captures, and mate threats should be examined first. Use the Reveal answer panels only after testing the defender’s best reply.

Yes, a discovered attack can be defended if one move handles both threats, captures the moving piece safely, blocks the revealed line, or creates a stronger counter-threat. Many discoveries fail if the moving piece has no tempo. Use Practice this position from the defender’s side and try to refute the first move.

The most common mistake is watching the moving piece and forgetting the line behind it. The rear bishop, rook, or queen is often the real attacker. Use the board arrows after revealing the answer and trace the line that was opened.

Choose discovered check when the check keeps the initiative, forces the king to move, or leads to mate. Checks usually outrank material because the defender has fewer choices. Use Vidmar vs. Euwe, Reti vs. Tartakower, and Norwood vs. Marsh to practise forcing discovered checks.

Yes, many discovered attacks start with a sacrifice that clears a line, decoys the king, or removes a defender. The sacrifice is justified when the revealed line creates a stronger threat than the material given. Use Keres vs. Spassky, Kholmov combination, and Polgar vs. Pliester as sacrifice examples.

A windmill is a repeated discovered-check sequence where the attacker checks, wins material, and checks again. The defending king is forced to move each time, so the attacker can harvest material. Use the double-check and king-hunt cards as related practice even though this page focuses on puzzle trainers.

Yes, discovered attacks can happen in the opening when a queen, king, or bishop is exposed behind an early-moving piece. Opening discoveries often punish pawn grabbing or poor development. Use Petroff opening mistake as the opening trainer card.

Yes, discovered attacks can happen in the endgame whenever line pieces and active kings create tactical tension. Endgame discoveries may win a rook, queen a pawn, or force mate. Use the checklist and replay method from this page on any endgame position with lined-up pieces.

A discovered attack is often a form of double attack because the moving piece and the revealed piece create separate threats. The defender cannot answer both threats if the timing is right. Use De Veauce vs. Cafferty and Nikolic vs. Topalov to see the double-attack connection.

A decoy can pull the king or queen onto a line where the discovered attack becomes forcing. The target moves to a bad square, then the front piece moves away and reveals the attack. Use Keres vs. Spassky and Reti vs. Tartakower to practise decoy-plus-discovery patterns.

Queen sacrifices are common because they can clear a line, decoy the king, or force a double-check position. The sacrifice works only when the revealed attack is stronger than the queen’s value. Use Reti vs. Tartakower, Keres vs. Spassky, and Norwood vs. Marsh for queen-sacrifice discoveries.

The practice buttons open the exact FEN in the ChessWorld practice viewer. That lets you play from the side to move instead of only reading the solution. Use Practice this position after replaying a solution once.

Replay solution buttons show the forcing line from the puzzle FEN, which is important because discoveries often depend on move order. Seeing the line makes it clearer why the defender cannot answer both threats. Use Replay solution after every reveal, especially on the longer king-hunt cards.

No, first identify the front piece, rear line piece, target, and likely tempo move. Then reveal the answer to check whether your explanation matches the tactic. Use the hidden answer panel on each card as your self-check.

Beginners should start with De Veauce vs. Cafferty, Uhlmann vs. Schwartz, and Petroff opening mistake. These examples show queen attack, mate threat, and opening discovered check without too many branches. Use the adviser’s beginner setting and work easiest-first.

Advanced players should study Norwood vs. Marsh, Polgar vs. Pliester, Kholmov combination, and Keres vs. Spassky. These require sacrifice judgement, king-hunt calculation, and repeated discoveries. Use the adviser’s advanced setting to jump to those cards.

Say: front piece, rear piece, opened line, target, and second threat. This keeps you from guessing a pretty move without understanding the mechanism. Use the checklist section and then compare your explanation with the Reveal answer panel.

Capturing the moving piece works only if it also solves the revealed attack. If the rear line remains dangerous or the moving piece was protected, the capture may lose immediately. Use Sundararajan vs. Bensdorp and Vidmar vs. Euwe to test this defensive idea.

After discovered attacks, study double attacks, pins, skewers, and deflections. The same ideas of tempo, loose targets, and overloaded defenders repeat across all of them. Use the InGuides links and the tactics course callout after finishing the trainer.

Use the page in three passes: first solve for the first move, then replay the solution, then practise the same FEN. On the second pass, name the front piece and rear line before moving. Start with De Veauce vs. Cafferty and finish with Polgar vs. Pliester.