[Event "National Elementary Championship"] [Site "Columbus, Ohio, United States"] [Date "2022.05.14"] [Round "4.20"] [White "Li, Mason"] [Black "Chen, Lucas"] [Result "1-0"] [WhiteElo "1559"] [BlackElo "1341"] [Annotator "Hartmann,John"] [Variant "Standard"] [ECO "A45"] [Opening "Indian Defense"] [StudyName "2022 National Elementary (K-6) Championship"] [ChapterName "Li, Mason - Chen, Lucas"] [ChapterURL "https://lichess.org/study/upGBDpGo/6SRGdMe1"] [Orientation "black"] 1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. c4 c6 5. Nc3 d5 6. Nf3 O-O 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 Nbd7 10. b4 Nh5 11. Bc7 Re8 12. g4 Nhf6 13. h3 Nf8 14. b5 Ne6 15. Bg3 Bd7 16. Ne5 Red8 17. Nxd7 Rxd7 18. b4 Ng5 19. b6 a6 20. b5 a5 21. bxc6 bxc6 22. Rb1 Rb7 { [#] } 23. Na2?! (23. Bd3) (23. Bg2) 23... Nge4 (23... Nd7) 24. Bh2 Nd7 25. Bd3 e5! 26. Bxe4 dxe4 27. Rd1 exd4 28. exd4 Nf6 29. O-O (29. Nc3) 29... Nd5 30. Rfe1 f5 31. Rd2 a4 32. Rc1 Ra5 33. Rc4 Bf6 (33... f4!) 34. Be5 Bg5? (34... Bxe5 35. dxe5 Kf7 36. Nc3 Nxc3 37. Rxc3 Ke6) 35. Re2? (35. Rd1) 35... a3 36. Kh2 Rb5? { It seems logical to try and get the a-pawn moving, but the tactics work in White's favor: } 37. Nc3 Rb2 38. Rxb2 axb2 39. Nb1 { Now the b2-pawn is stopped, and Black still has to deal with Rc4-a4-a7. } 39... Bc1 40. Ra4! Nxb6 41. Rb4 Ra7 42. cxb6 Rb7 43. Kg3 Kf7 44. Bc7 Ke6 45. Ra4 Kd7 46. Ra7 Kc8 47. Ra8+ Kd7 48. Rd8+ Ke7 49. Rh8 Ke6 50. Rxh7 g5 51. Rh6+ Kd7 52. gxf5 g4 53. Rd6+ Ke7 54. f6+ Kf7 55. Rd7+ Ke6 56. Rd6+ Kf7 57. hxg4 Bg5 58. Rxc6 Bxf6 59. Rxf6+ Kxf6 60. Kf4 Kg6 61. Kxe4 Kg5 62. f3 Kg6 63. f4 Kf6 64. g5+ Kg6 65. Ke5 Kf7 66. f5 Kg7 67. d5 Kf7 68. d6 Ke8 69. Ke6 Kf8 70. f6 Kg8 71. g6 Kf8 72. d7 Rb8 73. Bxb8 Kg8 74. d8=Q# { 1-0 White wins. } 1-0