1. c2c4  1... e7e6  2. g2g3  2... d7d5  3. f1g2  3... g8f6  4. g1f3  4... f8e7  5. d2d4  5... e8g8  6. b1c3 This is only the third most popular move, but it has some poison. 6... d5c4  7. f3e5  7... b8c6  8. g2c6  8... b7c6  9. e5c6  9... d8e8  10. c6e7  10... e8e7  11. d1a4 White wins a pawn, but Black gets compensation with the strong light-squared bishop. 11... f6d5 [%c_effect d5;square;d5;type;Interesting;persistent;true] 12. a4c4  12... a7a5 [%c_effect a5;square;a5;type;GreatFind;persistent;true] Preparing the development of the bishop on a6. Both players are following a game by Goryachkina. It's a little curious that she repeated the same moves since Black achieves comfortable equality in more than one way. 13. c1d2  13... c8a6  14. c4c5  14... e7d7  15. f2f3  15... f8b8  16. a1b1  16... b8b6 [%c_effect b6;square;b6;type;GreatFind;persistent;true] 17. e1f2  17... b6c6  18. c5a3  18... c6c4 This is the novelty. 19. h1d1 Giving the pawn back is a wise decision. 19... c4d4  20. d2e3  20... d5e3  21. f2e3 An unusual square for the king. 21... d4d1 [%c_effect d1;square;d1;type;Mistake;persistent;true] This move loses. 22. b1d1  22... d7c6  23. a3a4 [%c_effect a4;square;a4;type;Mistake;persistent;true] 23... c6b6 [%c_effect b6;square;b6;type;Mistake;persistent;true] 24. a4d4  24... g8f8  25. c3a4 [%c_effect a4;square;a4;type;Mistake;persistent;true] 25... b6d4  26. d1d4  26... f8e7  27. f3f4  27... a6b5  28. a4c5  28... b5c6 The knight on c5 is strong, but it can't be protected by a pawn. The position is close to equal. 29. e3d2  29... a8b8  30. b2b3  30... b8b5  31. c5d3  31... f7f6 [%c_effect f6;square;f6;type;GreatFind;persistent;true] Preparing e6-e5, winning some space. 32. h2h4  32... h7h5  33. d2c3  33... e6e5  34. d4c4  34... e7d6  35. f4e5  35... f6e5  36. d3f2  36... c6d5  37. c4a4  37... d6e6  38. c3d2  38... b5c5  39. f2d3  39... c5b5  40. d3b2  40... e6d6  41. b2d1 Goryachkina has no intention of agreeing on a draw for now. 41... b5c5  42. d1b2  42... g7g6  43. e2e4  43... d5e6  44. b2d3  44... c5b5  45. d2c3  45... c7c5 This doesn't spoil anything yet, but it isn't necessary. 46. c3d2 The king needs to protect the e4-pawn before the knight moves. 46... e6f7  47. d2e3  47... f7e6  48. d3b2  48... d6c6  49. e3d3  49... c6b6 [%c_effect b6;square;b6;type;Mistake;persistent;true] This natural move loses in instructive fashion. 50. d3c3 [%c_effect c3;square;c3;type;Mistake;persistent;true] 50... b5b4 [%c_effect b4;square;b4;type;Inaccuracy;persistent;true] 51. b2d3 [%c_effect d3;square;d3;type;GreatFind;persistent;true] Now Black has a difficult choice. 51... b4a4  52. b3a4  52... e6a2  53. d3e5  53... a2b1 [%c_effect b1;square;b1;type;Mistake;persistent;true] The final mistake.