[Event "2023 World Junior Championship"] [Site "Mexico City"] [Date "2023.09.24"] [White "Hans Moke NIEMANN"] [Black "G B HARSHAVARDHAN"] [Result "1-0"] [WhiteElo "2667"] [BlackElo "2397"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "E73"] [Opening "King's Indian Defense: Semi-Averbakh System"] [Source "https://lichess.org/study/qVDCzUiI/CdfuM1jI"] [Orientation "white"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 e5 7. d5 Na6 8. h4 Nc5 9. Qc2 Ng4 { A rare move. } 10. Bxg4 Bxg4 11. b4 $146 (11. f3 { is more common, but of course White is not ruling this out. }) 11... Na6 12. f3 Bd7 13. a3 f5 14. c5!? { The committal move helps Black clarify the position. } 14... dxc5 15. bxc5 Qe7 (15... c6! { would further "freeze" Niemann's queenside before launching the counterattack on the opposite flank. } 16. h5 cxd5 17. Nxd5 (17. exd5?! f4 18. Bf2 e4! $19) 17... Rf7 $17) 16. Qa2 Qf7 17. Nge2 c6 18. d6 Be6 19. Qd2 f4 20. Bf2 Rfd8 21. Rb1 Bf8 22. Na4 Rab8?! (22... b6! { Now that the play has shifted, and Black cannot achieve much on the kingside, switching gears to a more active approach in the center and queenside would be more accurate. } 23. cxb6 Rxd6 24. Qc3 axb6 25. Nxb6 Rad8 26. O-O) 23. O-O b6 24. Rfc1 Ba2 25. Rb2 Bb3 26. cxb6! { A sharp, accurate continuation. } 26... Bxa4 27. Qa5 axb6?! (27... Bb5 28. Rxb5! cxb5 29. bxa7 Ra8 30. Qxa6 Rxd6 31. Qxb5 Rxa7!? 32. Qxe5 (32. Bxa7 Qxa7+ 33. Kh2 Qe7) 32... Rad7 $14) 28. Qxa4 Nc5 29. Bxc5 bxc5 30. Rxb8 Rxb8 31. Qxc6 Rd8? { Another passive move hands the initiative fully over to White. } (31... Qe6! 32. Rd1 Qb3! $16 { was a more active way to play against White's relatively disconnected pieces on a clogged board. } 33. Qd5+ (33. Rd5? Qe3+ 34. Kh2 { is forced, to avoid back rank mate threats, and now White can only muster a draw after } 34... Qxe2 35. d7 Rd8 36. Qe6+ Kg7 37. Qxe5+ Kg8 38. Qe6+ Kg7) 33... Qxd5 34. Rxd5 Kf7 { provides reasonable chances for Black to hold. }) 32. Rd1 Qe6 (32... Qb3 33. Rd5! { is the point, now that Black's rook is not on the b-file, meaning that } 33... Qe3+ 34. Kf1 $18 { is safe for White. }) 33. a4 Bxd6 34. a5 Kg7 35. a6 Qa2 (35... c4 36. Rd5 Qe7 37. Kf1 { would also win for White. }) 36. Kf1 Be7 { Black's last chance is trying to get something out of the checks on the e1-h4 diagonal, but White will survive. } 37. Rxd8 Qa1+ 38. Kf2 Bxh4+ 39. g3 fxg3+ 40. Kg2 Bxd8 41. Qd7+ Kh6 42. Qxd8 Qxa6 43. Qh4+ { Now, White is clearly winning. } 43... Kg7 44. Qe7+ Kg8 45. Qe8+ Kg7 46. Qxe5+ Kf7 47. Qd5+ Kg7 48. Nxg3 c4 49. Qd4+ Kf7 50. e5 Qc6 51. Ne4 Ke6 52. Nc5+ Kf5 53. e6 c3 54. Qxc3 Qd6 55. Qe3 Qe7 56. Qe4+ Kf6 57. Nd7+ Kg7 58. Qe5+ Kh6 59. Nf6 g5 60. Ng8+ Kh5 61. Nxe7 { 1-0 White wins. } 1-0