1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. b1c3  3... d7d5 Not a major surprise; the Gruenfeld remains  Vachier-Lagrave's main choice against 1.d4. 4. g1f3  4... f8g7  5. d1b3  5... d5c4  6. b3c4  6... c8e6 