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  16... e5e4  17. h2h4 "The rook on g6 is misplaced. Here I am just somewhat better." (Nepomniachtchi) 17... b7b5 The only way to create  counterplay. 18. a5b6  18... d7b6  19. c4a5  19... c8d7  20. e1c1 Nepomniachtchi  regretted later that he allowed the black bishop easy access to the long  diagonal. Indeed it seems as the move in the game is an inaccuracy. The  most logical thing is to try and hide the king, but it was not safe on the queenside. 20... e7f6  21. a5c6 White occupied some important squares with his pieces but his position is not yet stable enough. 21... d8e8  22. c1b1 