X-Ray Attack

How This Tactic Works

An X-ray attack (also called an X-ray defense or transparency) occurs when a piece exerts influence through an enemy piece to target something behind it. For example, a rook on e1 still 'controls' e8 even if there is a piece on e4 — if that piece moves, the rook attacks e8. X-ray defense is when your piece defends a square through an enemy piece: your rook defends your queen even though an enemy piece stands between them. X-ray attacks often catch opponents off guard because the threat is less visible than a direct attack.

How to Spot It

• →A long-range piece (rook, bishop, queen) is aligned with a distant target, with an enemy piece in between
• →The intermediate enemy piece is under pressure and may be forced to move
• →Your piece 'defends' a square or piece through the enemy piece

Practice Tips

• →After each game, review positions where a X-Ray Attack was possible — either you played it, your opponent played it, or it was missed by both sides.
• →Focus on the key signal: A long-range piece (rook, bishop, queen) is aligned with a distant target, with an enemy piece in between. Train your pattern recognition until you see this automatically.
• →Upload your games to chess.rodeo for free Stockfish analysis — it will highlight exactly where tactical opportunities were missed in your games.

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