1. b2b3  1... c7c5  2. c1b2  2... b8c6  3. g1f3  3... g8f6  4. e2e3  4... g7g6  5. b2f6 Nakamura has played this move a few times before in blitz games. It has pros and cons: White gives up an important bishop and the dark squares are somewhat weakened as a result of the pawn on b3. On the other hand, Black has to play with doubled pawns. It's a move that can only be recommended in rapid time control games. 5... e7f6  6. c2c4  6... d7d5 Black has to open the center before White plays Nc3 and gets a grip on the d5-square. 7. c4d5  7... d8d5  8. b1c3  8... d5d8  9. a1c1  9... c8d7  10. f1b5 It's difficult to say which is the best square for the bishop. It's also not clear what White is going to do after …a7-a6, whether he takes on c6 or comes back. 10... a8c8  11. e1g1  11... a7a6  12. b5e2 Nakamura decides to retreat with the bishop. The other plan is to capture on c6 and play with a quick d2-d4. 12... f8e7  13. c3e4 The knight looks pretty on e4, but it can be attacked with f6-f5 and the pressure on c5 isn't dangerous.