[%c_effect h4;square;h4;type;Interesting;persistent;true] A surprising choice, as this is a move that doesn't have a good reputation and leads to chaotic positions.
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  8. b5d3  8... f6d5 