1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8e7 Unsurprising choice by Nakamura  who obviously feels very safe in the Queen's Gambit. 5. c1f4  5... e8g8  6. e2e3  6... b8d7  7. c4c5  7... c7c6  8. h2h3  8... b7b6  9. b2b4 