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Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4/4...Be7/5. dxe5/5...dxe5
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Hanham variation C41 Philidor defence → Hanham variation → 5. dxe5
5...dxe5??
Apparently a reasonable move, to recapture the pawn, is instead a blunder. White played 5. dxe5 to open up their d-file, and can now reply 6. Qd5! and threaten Qxf7#. Black must give up a minor piece knight to defend it.
Theory Table
+Qd5
Nh6Bxh6
References
See also