An X-Ray attack in chess is line pressure from a bishop, rook, or queen that matters through another piece or toward a hidden target. Use the diagrams, reveal arrows, replay offsets and practice boards below to train real X-Ray examples from the supplied PGNs.
An X-Ray attack is not just “seeing through walls”; it is a practical line-piece tactic. The attacker asks what sits beyond the blocker, what happens when the blocker moves, and whether the hidden target is a king, queen, rook, or mating square.
| Motif | Core idea | Best training card |
|---|---|---|
| X-Ray | Line pressure matters through or beyond a blocker. | Chigorin vs Znosko-Borovsky |
| Pin | A front piece is restricted because a more valuable target sits behind it. | Nimzowitsch vs Tarrasch |
| Skewer | The front target is attacked and moving it exposes the rear target. | Nilsson vs Geller |
| Discovered attack | A piece moves away and reveals a line from another piece. | Euwe vs Loman |
Choose the X-Ray pattern you want to train and get a specific card, practice FEN and replay from the tactic move.
Each card uses a supplied PGN, an initial diagram generated from the exact tactic-position FEN, a reveal note with the first move, and a replay button that starts directly from that move.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 33.Rc1. White tries to block the back-rank mate with Rc1, but the rook geometry remains dominated by Black's passed pawn and line pressure. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 31.Qf8+. The queen lands on f8 with the rook behind the line, turning X-Ray coordination into immediate mate pressure. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 18...d4!. Tarrasch opens the position at the right moment so the later queen, bishop and rook pressure all point through the king shelter. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 17.Qh8+. The queen sacrifice works because the rook and bishop geometry behind it leaves Black unable to survive the diagonal pressure. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 44.Rh8+. White's pieces attack through the line so the final rook move overloads Black's queen and king position. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 23...Qxc1+. Black's queen and rook coordination on the c-file turns a crowded file into a decisive X-Ray tactic. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 33.Rh5+. White's rook lift uses line pressure through the king shelter; the X-Ray threat becomes mate if Black accepts the sacrifice. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 24...Qxb2+. Black's queen uses the long diagonal and bishop support to make the b2 capture a decisive X-Ray mate threat. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 29...Rxa4+. The rook enters the a-file with check because the queen and rook line already point through White's king shelter. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 31.Rxf8#. White's final rook capture works because the rook, promoted pressure and king lines combine on f8. Use Replay this example to start from this move, or Practice this position to solve from the board.
Diagram: inspect the line piece, blocker and hidden target before revealing the note.
Solution first move: 28.Na7. The knight move is possible because the rook alignment protects through the line; X-Ray is not always a mate motif. Use Replay this example to start from this move, or Practice this position to solve from the board.
These answers cover definition, pin/skewer comparisons, recognition, mate patterns, defensive X-Rays and replay-offset training.
An X-Ray attack is line pressure from a bishop, rook, or queen that matters through another piece or along a line that looks blocked. The hidden point is that the blocking piece may move, be pinned, or fail to stop the real target behind it. Start with the X-Ray Adviser, then reveal the McDonnell vs La Bourdonnais card.
X-Ray means a long-range piece is influencing something beyond the first visible blocker. It is not magic; it is normal line geometry where the piece behind the blocker is tactically vulnerable. Use the X-Ray Replay Lab and compare Chigorin vs Znosko-Borovsky with Euwe vs Loman.
No, a skewer is a specific forcing tactic where the front piece is attacked and the rear target is won after it moves. An X-Ray is broader: pressure exists through, behind, or along a line before the tactic becomes concrete. Use the comparison table and then replay Nilsson vs Geller.
No, a pin restricts a front piece because something more valuable sits behind it, while an X-Ray can be pressure through either friendly or enemy pieces. Pins often create X-Ray tactics, but not every X-Ray is a pin. Use Nimzowitsch vs Tarrasch and the InGuides pin link after this page.
No, a discovered attack starts when one piece moves away and reveals another piece's attack. An X-Ray can exist before anything moves because the line pressure is already meaningful through the blocker. Use Euwe vs Loman and the related discovered-attack guide to compare the mechanisms.
Queens, rooks, and bishops create X-Ray attacks because they move along files, ranks, and diagonals. Knights do not X-Ray in the same strict line-piece sense, though they can be protected by an X-Ray line. Use Adorjan vs Rodgaard for a protective X-Ray example.
Yes, many X-Ray attacks lead to mate when the hidden line controls the king's escape or a mating square. Queen-and-rook and queen-and-bishop X-Rays are especially dangerous. Replay Chigorin vs Znosko-Borovsky, Euwe vs Loman, and Reinert vs Nielsen in the lab.
Yes, an X-Ray can win material when a front piece moves, a line opens, or a defender is overloaded. The target may be a queen, rook, knight, or a mating square. Use Nenarokov vs Grigoriev and Nilsson vs Geller as material-focused examples.
A defensive X-Ray is line pressure used to protect a piece or square indirectly. It may stop a tactic, protect a passed pawn, or make a capture safe. Use Adorjan vs Rodgaard and McDonnell vs La Bourdonnais to study defensive and failed defensive X-Rays.
Scan files, ranks, and diagonals for a queen, rook, or bishop that points through another piece toward a king, queen, rook, or mating square. Then ask what happens if the blocker moves or is overloaded. Use the X-Ray Checklist before pressing Reveal training note.
The most common practical pattern is rook or queen pressure down an open or half-open file. The piece in front may look safe until the rear target or mating square becomes visible. Use McDonnell vs La Bourdonnais and Nilsson vs Geller to practise file-based X-Rays.
Line pressure is the general pressure of a long-range piece along a file, rank, or diagonal. X-Ray is the tactical version where the pressure matters through another piece or toward a hidden target. Use the quick comparison table and then reveal the Euwe vs Loman note.
Yes, an X-Ray can be quiet because the threat may sit behind the visible board position until a blocker moves. The tactic often becomes clear only after a forcing move, capture, or sacrifice. Use the Adviser setting for hidden mate line and replay Chigorin vs Znosko-Borovsky.
X-Ray tactics are hard to see because players often stop calculating at the first blocker. Strong players look beyond the blocker and ask what lies behind it. Use the red arrows after revealing each card to train that second-layer vision.
Train X-Rays by naming the line piece, blocker, hidden target, and forcing move. Then reveal the note and replay from the tactic move to check the line. Start with Chigorin vs Znosko-Borovsky, then Euwe vs Loman, then Nilsson vs Geller.
No, first inspect the diagram and try to name the hidden target. The reveal panel should confirm the first move and draw the red arrow, not give away the answer too early. Use the initial diagram on each replay card before revealing.
Queen sacrifices appear because they can clear a line, decoy a king, or expose a hidden rook or bishop behind the apparent blocker. The sacrifice works only if the X-Ray line forces mate or wins back enough material. Use Euwe vs Loman and Chigorin vs Znosko-Borovsky.
Yes, but beginners should start with clear file and diagonal examples rather than vague labels. The concept becomes practical when the line piece, blocker, and target are named. Use the X-Ray Adviser on Queen/Rook mate or Queen/Bishop mate first.
An X-Ray mate is a checkmate where the mating force depends on line pressure through or behind another piece. The mate may look surprising because the key square seemed protected or blocked. Replay Reinert vs Nielsen and Casa vs Wagman from the tactic move.
Yes, X-Ray ideas are common in endgames because open files and ranks make line pressure clearer. Rooks often attack or defend through passed pawns and kings. Use Adorjan vs Rodgaard and McDonnell vs La Bourdonnais for endgame-style line awareness.
The replay offset loads the full game directly at the tactic move, so you do not have to click through the whole opening. That makes each example behave like a replay solution. Use Replay this example after revealing the first move on any card.
The full PGN gives context and still lets the viewer step backward or restart if needed. Starting at the tactic move simply improves the learning flow. Use Replay this example on Chigorin vs Znosko-Borovsky and then step back if you want the build-up.
Yes, each card includes a Practice this position button using the FEN derived from the full PGN at the tactic move. That lets you try the X-Ray idea before watching the replay. Start with Euwe vs Loman or Nilsson vs Geller.
After X-Ray tactics, study skewers, pins, discovered attacks, double attacks, and deflections. Those motifs often use the same line-piece vision. Use the InGuides links after finishing the X-Ray Replay Lab.
Use it in three passes: inspect the diagram, reveal the first move and arrow, then replay from the tactic move. Finally practise the same position against the computer. Start with the queen-and-rook examples and finish with the defensive X-Ray cards.
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