1. g1f3  1... d7d5  2. g2g3  2... g8f6  3. f1g2  3... c7c6  4. e1g1  4... c8g4  5. h2h3  5... g4h5  6. d2d3  6... e7e6  7. c2c4 Eljanov has a classic, positional style and these slow variations usually work well for him. 7... d5c4  8. d3c4  8... b8d7  9. b1c3  9... d8c7  10. c1f4  10... e6e5  11. f4e3  11... f8c5  12. e3c5  12... d7c5  13. b2b4  13... c5e6  14. d1c1  14... e8g8  15. f3d2  15... a7a5  16. a2a3 Black has a good position, but it is possible to improve on his next moves, as White will get a small advantage. 16... a5b4 Opening the a-file is not that advantageous for Black. 17. a3b4  17... a8a1  18. c1a1  18... c7b6 [%c_effect b6;square;b6;type;Inaccuracy;persistent;true] 19. a1b2  19... f8a8  20. f1c1  20... b6a6  21. e2e3  21... h5g6  22. d2f3  22... f6d7  23. c1d1  23... e6f8  24. f3h4 [%cal da6c4][%c_arrow a6c4;keyPressed;none;from;a6;opacity;0.8;to;c4;persistent;false] This pawn sacrifice is not bad, but I believe that the best White can do is recover it and achieve a draw. The alternatives likely lead to a draw: 24... a6c4  25. h4g6  25... h7g6  26. g2f1  26... c4e6  27. c3e4  27... d7b6  28. e4g5  28... e6e7  29. h3h4  29... f8h7  30. g5h7 [%c_effect h7;square;h7;type;Mistake;persistent;true] This is a mistake and now White is in danger. 30... g8h7  31. b4b5  31... c6c5 The c-pawn becomes very dangerous. 32. b2c2  32... e5e4 [%c_effect e4;square;e4;type;GreatFind;persistent;true] It's important to close the b1-h7 diagonal and take the e4-square from White's queen. 33. c2d2  33... e7e6  34. d2d6 [%c_effect d6;square;d6;type;Mistake;persistent;true] 34... e6d6  35. d1d6  35... c5c4 [%c_effect c4;square;c4;type;GreatFind;persistent;true] The only move, but good enough. Now Black wins the exchange after a forced sequence. 36. d6b6  36... c4c3  37. b6b7  37... a8c8 [%c_effect c8;square;c8;type;GreatFind;persistent;true] 38. b7a7  38... c3c2  39. a7a1  39... c2c1q  40. a1c1  40... c8c1  41. g1g2 With the b-pawn it would be possible to think that White has good chances for a draw, but the pawn structure on the kingside is very unfavorable. Black can endeavor to attack the f2-pawn, and if White moves the pawn before this happens, then his structure remains bad. 41... g6g5  42. h4g5  42... h7g6  43. b5b6 White decides not to wait passively. 43... c1c6 [%c_effect c6;square;c6;type;GreatFind;persistent;true] The only winning move. 44. b6b7  44... c6b6  45. f1a6  45... g6g5 The bishop is badly placed. 46. f2f4 [%c_effect f4;square;f4;type;Inaccuracy;persistent;true] This makes things worse, but the endgame should be lost anyway. 46... e4f3  47. g2f3  47... g5f5  48. a6d3  48... f5e5  49. d3e4  49... f7f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true] 50. e4c6  50... e5d6  51. c6e8  51... b6b7 White is not in time to exchange the e-pawn for the f-pawn. 52. f3f4  52... d6e6  53. e3e4  53... b7b4 [%c_effect b4;square;b4;type;GreatFind;persistent;true] 54. e8c6  54... e6f6  55. f4f3  55... b4b3 