411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...d6/3. d4/3...Nd7/4. Bc4/4...Ngf6/5. dxe5/5...Nxe5/6. Nxe5
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Hanham variation C41 Philidor defence → Hanham variation → 5...Nxe5
6. Nxe5
White trades knights. After Black recaptures 6...dxe5, the d-file will open and White has a tactical way of exploiting that to win a pawn.
Theory table
+678910Nxe5
dxe5Bxf7+
Kxf7Qxd8
Bb4+Qd2
Bxd2+Nxd2 +/-
References
See also