It seems that Black is winning now, but Keymer finds a nice resource.
1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... e7e6  4. b1c3  4... d5c4  5. f1c4  5... a7a6  6. e3e4 [%c_effect e4;square;e4;type;Interesting;persistent;true][%cal de3e4][%c_arrow e3e4;keyPressed;none;from;e3;opacity;0.8;to;e4;persistent;false] A rare move that Keymer has tried before. 6... c7c5  7. d2d4  7... c5d4  8. f3d4  8... f8d6  9. c1e3  9... e8g8  10. a1c1  10... b7b5  11. c4b3  11... c8b7  12. b3e6 [%c_effect e6;square;e6;type;Interesting;persistent;true] It's usually difficult to assess the material imbalance of two pieces versus rook and two pawns. The Bxe6 move in particular is quite thematic and I've seen this exchange discussed in opening positions as different as the Sicilian Najdorf and the Queen's Gambit, among others. Keymer probably already knew the computer's assessment from his studies of this line: the machine tends to find White's position a little more comfortable. 12... f7e6  13. d4e6  13... d8e7  14. e6f8  14... g8f8  15. f2f3  15... b8d7  16. c3e2 [%c_effect e2;square;e2;type;Inaccuracy;persistent;true] This is a mistake, since it allows an unpleasant check. As usual, castling is the best option. 16... d7e5 [%c_effect e5;square;e5;type;Inaccuracy;persistent;true] Carlsen misses a good chance. 17. e1g1 The game is back to normality. 17... a8d8  18. d1c2  18... d8c8  19. c2b1  19... e5c4  20. e3d4  20... d6c5 [%c_effect c5;square;c5;type;Mistake;persistent;true] This natural move is a mistake. Analysis with the computer shows that the exchange of the dark-squared bishops favors White. It's even possible to say, with no exaggeration, that White's position is close to winning. 21. f1d1 [%c_effect d1;square;d1;type;Mistake;persistent;true] A natural reaction, but this meets with a fantastic and brilliant move by Carlsen. 21... f6e4 [%c_effect e4;square;e4;type;Brilliant;persistent;true] A brilliant reply that highlights the white queen's unfortunate temporary position. 22. b2b3  22... c4e3 [%c_effect e3;square;e3;type;GreatFind;persistent;true] Another great move. 23. f3e4 [%c_effect e4;square;e4;type;Inaccuracy;persistent;true] 23... e3d1  24. c1d1  24... b7e4  25. b1b2  25... c5b4 Black has the pair of bishops and this is enough for a long-term advantage in a risk-free position. 26. d1c1  26... c8e8  27. e2g3  27... f8g8  28. b2f2  28... e4g6  29. h2h3  29... b4d6  30. g3f5  30... e7g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] 31. c1f1 