1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. c1f4 Nihal repeats the same variation that gave him an important win in his match against Giri in the semifinals. 3... d7d5  4. c4d5  4... f6d5  5. f4g3  5... c7c5  6. e2e4  6... d5f6  7. b1d2  7... d8d4 So is prepared and plays this critical move. In my analysis of Sarin vs. Giri, I wondered why nobody had ever tried this. 8. g1f3 