1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... h7h6  5. c2c3  5... d7d6  6. e1g1  6... g7g5 [%cal dg7g5][%c_arrow g7g5;keyPressed;none;from;g7;opacity;0.8;to;g5;persistent;false] With his opening choice, Nakamura shows he's coming for the win. This is an aggressive system that has become more or less popular in recent years but not so much in elite games. Naturally, this advance is risky, and it's no wonder that classical players don't play like this, but the computer and recent theory demonstrate that this move is completely viable. 7. b1d2  7... f8g7  8. c4b3  8... a7a5 This is a mysterious move to me, but it's the computer's first choice. I'd understand it better if it was a response against the expansion attempt with a4-a5, but White plays a4 now anyway. The Italian Opening, as you can see, is not very easy to master. 9. a2a4 One of the advantages for Black of having the pawns on a5-a4 is that after a d3-d4 advance, he can exchange pawns and place a knight on b4. 9... e8g8  10. d2c4 