Cautious.
1. e2e4  1... e7e6  2. d2d4  2... d7d5  3. b1c3  3... g8f6  4. e4e5  4... f6d7  5. f2f4  5... c7c5  6. g1f3  6... b8c6  7. c1e3  7... a7a6  8. a2a3  8... b7b6 Quite a rare line. 9. g2g3  9... f8e7  10. f1g2  10... e8g8  11. e1g1 [#] 11... g8h8 A somewhat mysterious but likely useful move. 12. c3e2  12... c8b7  13. c2c3 The opening is over, and the verdict is favorable for the first player. Black's position is solid but very passive. Thanks to the fixed center, Muzychuk has a clear plan of advancing her kingside pawns and building a step-by-step attack. 13... f7f5 An attempt for a blockade. 14. e5f6 Which is rejected. 14... d7f6  15. g2h3 Immediately hitting the backward pawn. 15... d8d6  16. f3g5  16... c6d8  17. e2c1 [%c_effect c1;square;c1;type;GreatFind;persistent;true] An instructive maneuver. The knight intends to establish itself on the second weakness, the outpost on e5. 17... c5c4 Zatonskih stops the raid. 18. c1e2 And back it goes. The loss of two tempi does not bother Muzychuk as the position has just been closed in her favor. 18... b7c6 [%c_effect c6;square;c6;type;GreatFind;persistent;true] The bishop wants out to the g6-b1 diagonal. 19. g3g4  19... d8f7 Zatonskih is slowly trying to free herself. 20. g5f7 White has achieved a lot, but this last move seems inaccurate. 20... f8f7  21. e2g3  21... a8e8  22. d1c2  22... e7d8  23. a1e1  23... c6d7  24. e3c1  24... e8f8  25. e1e2 A natural move, but... 25... f6g8  26. g4g5  26... g8e7 Black is just in time $1 27. f1e1  27... e7g6  28. g3h5 Not wishing to accept equality, White blunders. 28... g6h4 Zatonskih misses her chance. 29. h3g4  29... b6b5 Too slow $1 30. e2e5  30... h4g6  31. e5e6 [%c_effect e6;square;e6;type;GreatFind;persistent;true] If they do not score, we score right $2 The exchange sacrifice is practically forced but is an excellent chance to take back the initiative. 31... d7e6  32. e1e6  32... d6d7  33. h2h3 Not optimal. 33... d7c7 Time control approaches, and Black misses a couple of chances. 34. e6g6 [%c_effect g6;square;g6;type;GreatFind;persistent;true] A nasty blow $1 The knight is too good to stay on the board. 34... h7g6  35. c2g6  35... c7e7 A mistake. 36. g4e6  36... e7e8  37. f4f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true] A picturesque position $1 White is dominating in full despite the exchange deficit. 37... f7e7 Not the best square. 38. h5f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] One of the exchanges would be regained. 38... e7e6  39. g6e6  39... e8e6  40. f4e6  40... f8e8 The time trouble is over, and Black's position is in shambles. 41. g5g6  41... a6a5  42. c1f4 White is winning. She can activate her king, post the bishop on the optimal square, and push the h-pawn up. 42... d8f6  43. f4d6  43... h8g8  44. g1f2  44... f6h4  45. f2f3  45... h4e1 