1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. d2d4  3... c5d4  4. f3d4  4... e7e5 A risky variation that shows that Nakamura was willing to play for the win with Black. This choice certainly surprised his opponent, who was probably expecting the Berlin. 5. d4b5  5... d7d6  6. b1c3  6... a7a6  7. b5a3  7... c8e6  8. a3c4  8... a8b8 This mysterious move is a specialty of GM Maghsoodloo. I won't pretend to understand the idea. Let's say it's a kind of super protection to play b7-b5 at some point. 9. c3d5  9... e6d5  10. e4d5  10... c6e7  11. g2g3  11... b7b5  12. c4e3  12... g7g6  13. a2a4  13... g8f6  14. a4b5  14... a6b5  15. f1g2 