The second main move in the position, although there are only a handful of games anyway.
1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. g1f3  3... f8g7  4. g2g3  4... c7c6  5. f1g2  5... d7d5  6. e1g1  6... e8g8  7. f3e5 This line should not have come as a surprise for Vachier-Lagrave as Firouzja is the driving force behind this interesting concept. 7... d5c4  8. e5c4  8... c8e6  9. b2b3  9... e6d5  10. c1b2 