comment: By somewhat tortuous paths, the position has reached a typical battle of the King's Indian fianchetto variation. White has more space and the possibility of attacking the d6-pawn or advancing with f2-f4, g3-g4 and so on. Black has the strong bishop on g7 and some chances of counterattack on the queenside.
context: 1. g1f3  1... g8f6  2. g2g3  2... g7g6  3. b2b3 Carlsen decides not to enter into a theoretical battle in the opening and chooses the calm double fianchetto variation. 3... f8g7  4. c1b2  4... d7d6  5. f1g2  5... e7e5  6. d2d3  6... e8g8  7. c2c4 White's system is harmless for an elite classical game, but in rapid a normal position is enough to fight for a win. 7... a7a5  8. b1c3  8... h7h6 This move is new. There are many ways for Black to play and possibly 8...c6 is the most accurate, since there's no clear use for the h-pawn advance at the moment. 9. e1g1  9... c7c6  10. e2e4  10... f8e8  11. f1e1  11... b8a6  12. h2h3  12... c8d7 Too slow. 13. d3d4  13... e5d4  14. f3d4 