1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... c7c5  5. e2e3  5... b8c6  6. a2a3 This line yielded an important victory for Ding, with White, against Nakamura in the Candidates Tournament. 6... d5c4 