1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... e7e5 Yep. If you cannot  beat it, use it. This might have been Caruana's thought when chosing  Carlsen's own weapon from their London match. 6. d4b5  6... d7d6  7. c3d5  7... f6d5  8. e4d5  8... c6b8  9. a2a4  9... f8e7  10. c1d2 A tricky novelty according to  Nepomniachtchi. If Black plays well he will end up with a normal  theoretical position, but otherwise he may land in trouble. 10... e8g8  11. a4a5  11... a7a6  12. b5a3  12... b8d7  13. a3c4  13... f7f5  14. d2b4  14... f8f6 Apparently, this is what White was hoping for with the tricky move order. 15. d1d2  15... f6g6  16. g2g3 