1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. g1f3  4... d7d5  5. c1g5  5... h7h6  6. g5h4  6... d5c4  7. a2a3  7... b4c3  8. b2c3  8... b8d7  9. e2e3  9... b7b5  10. a3a4  10... c7c6  11. d1b1  11... d8a5 Navara deviates first  from a game that Mamedyarov lost recently in the Netherlands. 12. b1b2  12... f6e4  13. a4b5  13... a5b5  14. b2c1  14... c6c5  15. f1e2 For the pawn White has solid compensation thanks to  the bishop pair and the better pawn structure. 15... e8g8  16. e1g1  16... c8b7  17. a1b1  17... b5c6  18. e2c4  18... c5d4  19. c4b5  19... c6c7  20. c3d4  20... f8c8  21. c1b2 With the strong center Mamedyarov definitely wants  to keep the queens. The chances for a kingside attack he might get are  quite serious. 21... d7b6  22. f1c1  22... c7d6  23. f3e5  23... g7g5 A good practical  chance. Black swaps off the dangerous bishop. 24. f2f3 "This was a mistake as I am all of a sudden fine now." (Navara) 24... g5h4  25. f3e4  25... b7e4  26. b2f2 The point behind Mamedyarov's play.  26... d6e7  27. b1a1 This is inaccurate. 27... c8c1  28. a1c1  28... b6d5  29. b5d3  29... e4d3  30. e5d3  30... e7f6 Navara covered his king and kept the extra  pawn. Now Mamedyarov needed to find the most precise path to the draw. 31. f2f6 But he could not. 31... d5f6  32. g1f2  32... a7a5  33. c1a1  33... a5a4  34. a1a3  34... f6e4 An additional possibility in comparison to the line from above. 35. f2e1  35... a8b8  36. d3c5 White needs to get rid of the knights if he wants to have any chances of survival. 36... b8b1  37. e1e2  37... b1b2  38. e2d3 A curious position. It seems as Black  is completely winning, but Mamedyarov always has some counterplay.