411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...Na5/6. Bb5/6...c6/7. dxc6/7...bxc6/8. Be2/8...h6/9. Nf3/9...e4
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Two Knights Defence rd bd qd kd bd rd pd pd pd pd nd pd nd pd nl pl pl pl pl bl pl pl pl rl nl bl ql kl rl
Two Knights Defence
9... e4
With the pawn under a attack, challenging the White Knight again is an obviously useful move here, as it gains a tempo.
Theory table
.
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4
<table border="0" cellspacing="0" cellpadding="4">
10
Ne5-
Ng1-
</tr>
</table>
Statistics
Estimated next move likelihood
Ne5 99%, Ng1 1%
References
Two Knights Defence