A novelty, and a good one $1 Vachier-Lagrave is about to free himself in full.
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  10... b8d7 The second main move in the position, although there are only a handful of games anyway. 11. b1c3  11... d5g2  12. g1g2 