1. d2d4  1... g8f6  2. b1c3  2... d7d5  3. c1f4  3... e7e6  4. c3b5 I must admit that I never quite understood the point of White's game in this opening, with this far-fetched knight-jump. Which is not to say that the variation is bad, as it's played by many strong chess players. 4... b8a6  5. e2e3 The idea is to leave the knight poorly placed on a6, although White loses some time with this and his own knight is no Pegasus. 5... f8e7  6. g1f3  6... e8g8  7. f1e2 Yoo doesn't mind trading the f4-bishop. Other moves avoid this and are very common. 7... f6h5  8. f4e5  8... f7f6  9. e5g3  9... c7c6  10. b5c3  10... c6c5  11. e1g1  11... h5g3  12. h2g3 A critical position after the opening. White's play is unimpressive - there doesn't seem to be enough compensation for losing the pair of bishops, a positional advantage beloved by all grandmasters. White will certainly try e3-e4 at some point to bring his pieces to life. Black's next move is very interesting and surprises those with obsolete strategic convictions. 12... c5c4 A new move. It seems strange to close the center with the bishop pair. Haven't we been taught that what's best for them is an open position $2 But there is another advantage that must be taken into account: having more space. The idea becomes clear with the next move. 13. e3e4  13... e7b4 Black tries to force a definition in the center. Which is better, taking on d5 or advancing the pawn $2 This question is very difficult to answer. 14. e4d5  14... e6d5  15. c3b1 A rather sad move, but White needs to rearrange his pieces. 15... a6c7  16. c2c3  16... b4d6  17. b1d2  17... b7b5 We can declare Black the winner of the opening battle: his position is clearly more comfortable. 18. f3e1 It's better to get some life on the queenside. 18... c8e6  19. e1c2  19... d8d7  20. f1e1  20... a7a5 Now Black has a clear advantage, as he has the bishop pair and more space. 21. a2a3  21... g7g6 The beginning of an interesting plan: to play h5-Kg7-Rh8 and break on the kingside with h5-h4. 22. d2f1  22... h7h5  23. d1d2  23... g8g7  24. f2f4 If White stands still, defeat is certain. This move seems positionally dangerous, but at least it gains some space. 24... f8h8  25. e2f3  25... f6f5 This move is surprising to me. I expected the natural 25...h4 or doubling the rooks on the h-file before that. Black instead plans to move the knight to the juicy e4-square, but this allows White to use the e5-neighbor for an exchange sacrifice. 26. e1e2  26... c7e8  27. a1e1  27... e6f7  28. e2e5  28... e8f6  29. f1e3  29... h5h4 Perhaps Black could wait a little longer before making this move, as White doesn't have an active plan. 30. d2f2  30... h4h3  31. e1e2  31... a8d8 Now capturing on d5 is no longer possible. 32. f2e1  32... f6e4 Black has a clear advantage. 33. g3g4  33... d6e5  34. d4e5  34... h3g2  35. e2g2  35... h8h3 The difference with the variation we saw earlier, in which Black doesn't capture on e5, is that White can now use the d4-square for his knight. 36. e5e6 The losing move and from now on White has no chance. 36... f7e6  37. g4f5  37... e6f5  38. e3f5  38... d7f5 White has surrendered his pawn for no good reason.