A move that became popular after being used by Caruana in the match against Carlsen, in 2018. It leads to an unbalanced pawn structure and dynamic positions.
1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... e7e5  6. d4b5  6... d7d6 