1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. e1g1  4... f6e4  5. d2d4  5... e4d6  6. b5c6  6... d7c6  7. d4e5  7... d6f5  8. d1d8  8... e8d8  9. b1c3  9... f8e7  10. c1f4  10... f5h4  11. a1d1  11... d8e8  12. f3h4  12... e7h4  13. c3e2  13... h4e7  14. e2d4  Preparing e5-e6, White's most powerful break against the Berlin. This  novelty should not have come as a surprise for Aronian. 14... a7a6 With the idea of c6-c5. 15. e5e6  15... c8e6  16. d4e6  16... f7e6  17. f1e1 The most natural reaction. Grischuk  needs this rook out. 17... e7f6 An active reply in return. 18. b2b3 Not a necessary move. 18... e8e7  19. f4c7  19... h8c8  20. c7d6  20... e7f7  21. d6c5 The outcome of the  opening is favorable for Grischuk. His pawn structure is healthier, and he will soon take under control the only open file. 21... c8d8  22. c5b6  22... d8d5  23. c2c4  23... d5d1  24. e1d1  24... f7e8  25. d1d6  25... e8e7  26. d6d3 From here on Aronian demonstrates amazing defensive  skills. 26... a8c8 The obvious idea is to lock up the white bishop with c6-c5... 27. b3b4 ...which Grischuk duly prevents. 27... e6e5 A  surprising decision. Black places a pawn on the color of his own bishop,  thus limiting it and turning it into a possible target. On the other hand, this is a weakness anyway, but Aronian is now gaining space for the king. 28. b6c5  28... e7e6  29. d3d6  29... e6f5 The point behind the advance is now evident.  Black's active king more than compensates for the weakening of the e-pawn.  30. c5b6  30... c8e8  31. g1f1  31... h7h5  32. f1e2  32... e8e6  33. d6d1  33... e6e8 Both sides make progress, but the impression is  that Aronian is closer to equality at this point of the game. 34. a2a4  34... f5e6  35. h2h3  35... f6e7  36. d1b1  36... e8f8  37. b4b5 Grischuk is still looking for a way to  break through, but now that the black rook gets out, it is only White who  is risking. 37... f8f4 Aronian plays for the win! 38. b5a6  38... b7a6  39. b1c1  39... c6c5  40. b6a5  40... f4e4 I strongly advise you to pay  attention on how many times Aronian will use the in-between checks in this game to disrupt the opponent's coordination. 41. e2d3  41... e4d4  42. d3e2  42... e5e4  43. c1c2  43... e7f6  44. a5b6  44... e6d6  45. b6a5  45... d6c6  46. a5d2  46... d4d3  47. a4a5  47... d3b3  48. d2e3  48... f6c3 Heading for the a5-weakness.