[Event "National K-12 Grade Championships 2022"] [Site "National Harbor, Maryland, Uni"] [Date "2022.12.10"] [Round "5.5"] [White "Huston, Gus"] [Black "Sethuraman, Sandeep"] [Result "0-1"] [WhiteElo "2373"] [BlackElo "2462"] [Variant "Standard"] [ECO "B51"] [Opening "Sicilian Defense: Moscow Variation"] [StudyName "K-12 Grade Championships"] [ChapterName "Huston, Gus - Sethuraman, Sandeep"] [ChapterURL "https://lichess.org/study/D59ifJA3/ihxpfKdu"] [Annotator "https://lichess.org/@/ChessLifeOnline"] [Orientation "white"] 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Nf6 5. Nc3 a6 6. Be2 g6 7. O-O Bg7 8. a5 b5 9. axb6 Bb7 10. d3 a5 11. Na4 O-O 12. Nd2 Nxb6 13. Nxb6 Qxb6 14. Nc4 Qc7 15. Bf4 Nd7 16. Qd2 a4 17. Bh6 Rfe8 18. Bxg7 Kxg7 19. f4 e6 20. e5! (20. f5 { This had to be considered, but Black can survive. White's choice is murkier, and thus commendable to play for a win. } 20... exf5! 21. exf5 Nf6 22. fxg6 hxg6 23. Rxf6 (23. Qf4 Rxe2 24. Qxf6+ Kg8 $10) 23... Kxf6! 24. Qc3+ Ke7 25. Re1 Kd7 26. Bg4+ Kc6 27. Bf3+ Kd7 28. Bg4+ $10) 20... d5 21. Nd6 Reb8 22. f5?! { This is impatient. } (22. Qe3 { White can first defend the e5-pawn without losing the threat of pushing f4-f5. } 22... Kg8 23. Qg3 f5! { White still has a serious initiative, but anything else is losing. } (23... Qb6 { For instance, now White wins after } 24. f5! exf5 25. Nxf5 f6 26. exf6 Nxf6 27. Nd6 Rf8 28. Qe5 $18)) 22... Nxe5 { The critical moment. White must decide what to do with his knight. } 23. Nxb7?? (23. Nb5 { The knight might appear passive here, and since Black threatens to push ...d5-d4, the bishop might be useful. But calculation tells a different story. } 23... Qd8 (23... Qd7 24. Qf4! f6 25. d4 { Again, White's bishop improves as Black's diminishes in potential. } 25... cxd4 26. fxe6 Qxe6 27. Nc7 Qb6 28. Nxa8 Rxa8 29. Qf2 $14) 24. Qe3 f6 25. d4 $14 { White closes the Black bishop behind the d-pawn. }) 23... exf5 24. Nxc5 Qxc5+ 25. d4 Nc4 26. Bxc4 Qxc4 27. Rxf5 Rxb2! { Black resists temptation and wins the long, but safe, way. } (27... gxf5? { Black is still winning, but the forcing variation is incredible to calculate. } 28. Qg5+ Kf8 29. Qh6+ Ke8 30. Re1+ Kd7 31. Qf6 Re8 32. Qxf7+ Kd6 33. Qf6+ Kc7 34. Qf7+ Kb6 35. Rxe8 Qxd4+ 36. Kf1 Rxe8 37. Qxe8 Qd1+ 38. Qe1 Qxc2) 28. Qf4 Qxc2 29. Rxf7+ Kg8 30. Qf2 Rb1+ 31. Rxb1 Qxb1+ 32. Qf1 Qxf1+ 33. Rxf1 Rb8 34. Rd1 Rb2 35. Ra1 Rb4 36. Rd1 Kf7 37. Kf2 Rb2+ 38. Kf3 a3 39. Rc1 Rb7 40. Kf4 a2 41. Ra1 Rb2 42. Ke5 Rxg2 43. h4 Ke7 44. Kxd5 Kd7 45. Rf1 Rf2 46. Rg1 Rf5+ 47. Kc4 Ra5 48. Ra1 Kd6 49. Kd3 Kd5 50. Kc3 Ra7 { 0-1 Black wins. } 0-1