1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8e7  5. c1g5  5... h7h6  6. g5h4  6... e8g8  7. d1c2  7... c7c5  8. d4c5  8... d5c4  9. e2e3  9... b8a6  10. f1c4  10... a6c5  11. e1g1  11... a7a6  12. f1d1  12... d8e8 This has been  seen already and it is once again Dubov who demonstrates excellent  preparation as he uncorks a novelty. 13. c4e2 A tricky move. The  bishop is side-stepping the tempo Black might use with b7-b5 and gets  ready to occupy the long diagonal. 13... b7b6 Nakamura's play remains pretty straightforward which might  well be the reason for his opening choices. 14. b2b4  14... c5d7  15. f3d4 Heading for the c6 square \E0 la Botvinnik. This  cannot be allowed. 15... c8b7  16. c2b2  16... a8c8  17. b4b5 Dubov insists on holding the c6 square. 17... a6a5 No pin allowed. 18. c3a4 White does not want to allow any counterplay for his opponent,  but this move backfires. 18... f6d5  19. h4e7  19... e8e7  20. e2f3  20... d7c5 Once again obvious, logical and  good. 21. a4c5  21... c8c5  22. d4c6 Dubov decided to sacrifice the pawn and try to  equalize at once. 22... b7c6  23. b5c6  23... e7c7 The c6 pawn is doomed. Black wants more than slight edge. 24. a1c1  24... c7c6  25. c1c5  25... c6c5  26. f3d5  26... e6d5  27. d1c1 At least White managed  to get to a piece ratio which often promises good defensive chances. 27... c5d6  28. g2g3  28... f8d8  29. b2b5 A mistake. (Nakamura) 29... d5d4  30. e3d4  30... d6d4  31. c1c6 And this simply loses a couple of  tempos. 31... d4e4 Dubov must have missed this. He is now forced into passive  defense and no one can save himself down a pawn with passive major pieces.  32. c6c1  32... e4f3  33. b5b1  33... g7g6 Getting air for the king. Once the king is  safe, the rook may join the attack more effectively. 34. h2h4  34... d8d6  35. b1a1  35... g8h7  36. a1b1  36... h6h5  37. c1e1  37... a5a4  38. b1b4  38... d6d1 The queen endgame is easily won for Black as his queen is  omnipresent. 39. e1d1  39... f3d1  40. g1h2  40... d1c2  41. b4b6  41... c2a2  42. b6f6  42... a2e6  43. f6c3  43... e6b3  44. c3f6  44... a4a3  45. g3g4  45... b3e6  46. f6f3 