White continues to break the structure on the queenside.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. d2d3  4... f8c5  5. b5c6 Once again Caruana plays this variation which has become his specialty against the Berlin Defense. 5... d7c6  6. b1d2  6... f6d7  7. e1g1  7... a7a5 A rare move that has been played by So before. 8. d2c4  8... d8e7  9. c1e3  9... f7f6  10. d1d2 A natural move that is new. 10... b7b6  11. a2a3 [%c_effect a3;square;a3;type;GreatFind;persistent;true] Starting the pawn advance plan on the queenside. 11... e7f7  12. b2b4  12... c5e7  13. b4a5  13... b6b5  14. c4b2  14... e8g8 