1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. f3g5 A sharp line that indicates Firouzja's aggressive intentions. Caruana had a painful defeat against Nakamura in this line this year, in the last round of Norway Chess. 4... d7d5  5. e4d5  5... c6a5  6. c4b5  6... c7c6  7. d5c6  7... b7c6 