1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. g2g3  3... g8f6  4. f1g2  4... f8e7  5. g1f3  5... e8g8  6. e1g1  6... d5c4 One of the oldest and most solid lines against the Catalan. 7. d1c2  7... a7a6 The main move. 8. a2a4  8... b8c6 Also a modern idea. 9. b1a3 This move, played after a prolonged thought, is obviously an over-the-board novelty. Unfortunately for Mammadzada, the combination of the moves Qd1-c2 and Nb1-a3 does not work well. 9... b7b5 [%c_effect b5;square;b5;type;GreatFind;persistent;true] Zatonskih had spent almost an hour on the clock but found the best continuation. Or rather, refutation $1 The pawn cannot be regained now. 10. f3e5  10... c6b4  11. c2d1  11... a8b8  12. a4b5  12... a6b5 Black not only keeps the extra pawn but is ready to trade her problematic light-squared bishop. 13. b2b3 Funny, it is now White who struggles to trade as many pawns on the queenside as she can (check Nakamura's game from above.) 13... c4b3  14. c1b2  14... c8b7  15. d1b3  15... b7g2  16. g1g2  16... b8b6 Zatonskih is carefully preparing the advance of her c-pawn. Right now she is taking the c6-point under control. 17. f1c1  17... f6d7  18. e5f3  18... d8b8  19. a3b1 [%c_effect b1;square;b1;type;GreatFind;persistent;true] White needs to use every single resource that she has to gain survival chances. The knight needs to be moved to a better position. 19... b4d5  20. b1d2  20... c7c5  21. d4c5  21... d7c5 Black frees her position and is a solid pawn ahead. 22. b3c2  22... b6b7  23. e2e4  23... d5b6  24. b2e5  24... b8d8  25. d2b3  25... b6c4  26. c1d1  26... d8c8  27. e5d4 Better is to trade the other knight. 27... c5b3  28. c2b3  28... e7c5 Trading the annoying bishop is a sound plan. The only problem is that Black is getting closer to a major-piece endgame and not all of those would be won for her. 29. a1c1  29... c8c6  30. b3c3 Alas, Mammadzada misses a nice tactical shot. 30... c5d4  31. c3d4  31... c6b6 Time trouble is here, and both players have to be extremely careful. 32. d4b6  32... b7b6  33. f3d4 This is the first moment when White has a chance to activate her rooks. 33... h7h6  34. d1e1  34... f8b8  35. e1e2  35... c4e5  36. f2f4  36... b8d8  37. d4b5 Removing the queenside pawns. It is always easier to defend on the side only. 37... b6b5  38. f4e5  38... b5e5  39. c1e1 The time deficit prevented Mammadzada from finding her best chance. 39... g7g5 [%c_effect g5;square;g5;type;Brilliant;persistent;true] Zatonskih is in time trouble too but knows her job well $1 This move not only secures the powerful position of the rook on the e5-spot, but it also prepares the further kingside attack. 40. e2f2  40... d8d4  41. e1f1  41... d4d7  42. f1e1  42... g8g7  43. f2e2  43... d7d4  44. g2f3  44... d4a4  45. f3g2  45... g7g6  46. g2f2  46... h6h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] In order to win the game, Black needs a second weakness, and that would be the white king itself. 47. f2g1  47... g5g4  48. g1g2  48... f7f6  49. g2g1  49... g6g5  50. g1g2  50... a4b4 [%c_effect b4;square;b4;type;GreatFind;persistent;true] A safe approach. One set of rooks is traded, and White is deprived of any tactical chances. 51. g2g1  51... e5b5  52. e1f1  52... b4b2  53. e2b2  53... b5b2  54. f1a1  54... b2e2  55. a1a4  55... e6e5  56. a4b4  56... h5h4 [%c_effect h4;square;h4;type;GreatFind;persistent;true] The beginning of the end. 57. b4a4  57... h4h3 [%c_effect h3;square;h3;type;GreatFind;persistent;true] Fixing the second weakness. There is nothing to be done by White anymore. 58. a4b4  58... g5g6  59. b4a4  59... e2g2  60. g1h1  60... g2d2 [%c_effect d2;square;d2;type;GreatFind;persistent;true] Getting the more valuable pawn. The rest is easy for Black. 61. h1g1  61... d2d4  62. a4a8  62... d4e4  63. g1f2  63... e4b4  64. a8a2  64... b4b1  65. f2e3  65... b1e1  66. e3d3  66... g6f5  67. a2f2  67... f5e6  68. f2a2  68... e1g1  69. d3e4  69... f6f5  70. e4e3 