411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. Bc4/3...Nxe4
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Petrov's Defence: Italian Variation
Petrov's Defence: Italian Variation
Black takes the undefended e4 pawn with 3...Nxe4. Now it would be unwise to continue with 4. Nxe5?! since after 4...d5! Black has a strong grip in the center, and white has to move the bishop to a less desirable location.
Instead white usually follows up with 4. Nc3 which is a gambit line known as the Boden-Kieseritzky Gambit, which resembles the Stafford Gambit with reversed colors, although the extra tempo gained by white with Bc4 does favor White greatly.
Theory table
+45Boden-Kieseritzky GambitNc3
Nxc3dxc3
f6Nxe5?!
d5
References