Very accurate again.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8b4  5. e2e3  5... e8g8  6. c1d2 Quite a solid  line. 6... b7b6  7. c4d5  7... e6d5  8. f1d3  8... c8b7  9. e1g1  9... b4e7  10. f3e5  10... c7c5  11. c3e2  11... b8c6  12. e5c6 A novelty. 12... b7c6  13. d4c5  13... b6c5 The arising hanging pawn structure looks quite alright for Black. The pawns are not under siege yet, and Aronian has  clear prospects of a play along the b-file. 14. d2c3  14... d8b6  15. e2g3 Erigaisi weakens the opponent's kingside. Why? We  shall see in a moment. 15... g7g6  16. b2b4 This is one of the ways to fight the hanging pawns.  Separate them and use the squares that are opened for your own pieces.  True, Erigaisi needs to sacrifice a pawn for these goods. 16... c5b4  17. c3d4  17... b6d8 Aronian is careful. 18. a1c1  18... c6b7  19. d1f3 This attacking setup is what Erigaisi was heading  for. The inclusion of the white knight is always in the air. 19... d8d6  20. h2h4 With the clear intention to soften the king's position. 20... f8c8 Aronian is challenging the opponent on the opposite wing in  the meantime. 21. h4h5  21... a7a5  22. d3f5 