[Event "National K-12 Grade Championships: 3rd Grade"] [Site "National Harbor, MD"] [Date "2024-12-08"] [Round "7.26"] [White "Li, Aiden Linyuan"] [Black "LeBakken, Lukas W"] [Result "1-0"] [WhiteElo "2036"] [WhiteFideId "39917487"] [BlackElo "1879"] [BlackFideId "39944379"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "B10"] [Opening "Caro-Kann Defense: Two Knights Attack"] [StudyName "2024 National K-12 Grade Championships"] [ChapterName "Li, Aiden Linyuan - LeBakken, Lukas W"] [Source "https://lichess.org/study/BpCvdq2G/Zgfa9AGW"] [Orientation "white"] 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 { [%clk 1:30:00] } 4. Nxe4 { [%clk 1:30:00] } 4... Nf6 { [%clk 1:30:00] } 5. Qe2 Nxe4 { [%clk 1:30:00] } 6. Qxe4 Nd7 { [%clk 1:30:00] } 7. Bc4 Nf6 { [%clk 1:29:57] } 8. Ne5 e6 { [%clk 1:29:53] } 9. Qe2 Be7 10. O-O O-O 11. c3 a6 12. d4 { [%clk 1:25:00] } 12... c5 { Black has successfully executed a ... c6-c5 break to undermine White's center. } 13. Rd1 cxd4?! { Black misevaluates the position and gives White a dangerous rook to complement the more open lines on the kingside. } (13... b5 { was fine, continuing development and allowing } 14. dxc5 Qc7 { when Black regains the c-pawn after } 15. Bd3 Bxc5 { and even after } 16. Bf4 Bb7 17. a4 $14 { Black's position is playable. The lesson here is that the purpose of 12. ... c5 was to release White's control of the e5-square and create more play on the a7-g1 diagonal and the d-file. All of those objectives have been achieved by allowing 14. dxc5 in this variation! So, Black had reason to keep the tension in the center. }) 14. Rxd4 Qe8 15. Bg5 Nd7?! { Closing off the c8-bishop is very dangerous in these structures, and indeed White had a tactical rejoinder. } 16. Bf4 (16. Nxf7! Rxf7 (16... Kxf7?? 17. Qxe6#) (16... Qxf7?? 17. Bxe6 $18) 17. Qxe6 $16 { immediately produces a return on the material investment. }) 16... Bf6 17. Rad1 Nxe5 { [%clk 1:11:38] } 18. Bxe5 Bxe5 { [%clk 1:11:15] } 19. Qxe5 Qe7 20. a4 { Great prophylaxis. White shuts down ... b7-b5 counterplay before forcing through any attack on the kingside. After all, the rooks are useful along the d-file already. } 20... Qf6 { [%clk 0:57:25] } 21. Qc7 e5 { [%clk 0:44:38] } 22. Rd8 { Threats of mate will force Black to part with at least one pawn while trading down. } 22... Bg4 { [%clk 0:29:58] } 23. Rxa8! { The proper capture to ensure the b7-pawn hangs at the end. } { [%clk 1:10:14] } (23. Rxf8+ Rxf8 24. Qxb7?? Bxd1 $19 { was the pitfall. }) 23... Rxa8 { [%clk 0:29:58] } 24. Qxb7 { With the a8-rook hanging, White can afford to leave the d1-rook out to dry for one more turn. } { [%clk 1:09:43] } 24... Rf8 { [%clk 0:29:33] } 25. Re1 $18 { White is pawn-up with pressure on the a6-, e5-, and f7-pawns. White went on to win smoothly. } { [%clk 1:07:48] } 25... Qd6 { [%clk 0:24:02] } 26. Qe4 { [%clk 1:06:56] } 26... Bd7 { [%clk 0:20:17] } 27. Qxe5 { [%clk 1:06:39] } 27... Qc6 { [%clk 0:20:16] } 28. Qd5 { [%clk 1:02:24] } 28... Qxd5 { [%clk 0:19:27] } 29. Bxd5 { [%clk 1:02:24] } 29... Bxa4 { [%clk 0:19:27] } 30. Ra1 { [%clk 1:02:24] } 30... Bd7 { [%clk 0:18:30] } 31. Rxa6 { [%clk 1:02:21] } 31... Rd8 { [%clk 0:18:07] } 32. Rd6 { [%clk 1:02:05] } 32... Kf8 { [%clk 0:18:01] } 33. Bc6 { [%clk 1:01:57] } 33... Re8 { [%clk 0:18:01] } 34. Kf1 { [%clk 1:01:57] } 34... Bxc6 { [%clk 0:18:01] } 35. Rxc6 { [%clk 1:01:57] } 35... Ke7 { [%clk 0:18:01] } 36. Rc7+ { [%clk 1:01:56] } 36... Kf6 { [%clk 0:18:01] } 37. b4 { [%clk 1:01:56] } 37... Kg6 { [%clk 0:17:52] } 38. b5 { [%clk 1:01:56] } 38... Rb8 { [%clk 0:17:52] } 39. c4 { [%clk 1:01:55] } 39... f5 { [%clk 0:17:49] } 40. Rc6+ { [%clk 1:01:55] } 40... Kf7 { [%clk 0:17:49] } 41. b6 { [%clk 1:01:55] } 41... Ke8 { [%clk 0:17:27] } 42. c5 { [%clk 1:01:55] } 42... Rb7 { [%clk 0:16:54] } 43. Rc7 { [%clk 1:00:52] } 43... Rxc7 { [%clk 0:16:54] } 44. bxc7 { [%clk 1:00:52] } 44... Kd7 { [%clk 0:16:54] } 45. Ke2 { [%clk 1:00:52] } 45... Kxc7 { [%clk 0:16:54] } 46. Kd3 { [%clk 1:00:52] } 46... g6 { [%clk 0:16:34] } 47. Kc4 { [%clk 1:00:43] } 47... Kc6 { [%clk 0:16:31] } 48. Kd4 { [%clk 1:00:43] } 48... Kc7 { [%clk 0:16:08] } 49. Ke5 { [%clk 1:00:36] } 49... Kc6 { [%clk 0:16:08] } 50. Kf6 { [%clk 1:00:36] } 50... Kxc5 { [%clk 0:16:08] } 51. Kg7 { [%clk 1:00:36] } 51... Kd4 { [%clk 0:14:53] } 52. Kxh7 { [%clk 1:00:36] } 52... Kd3 { [%clk 0:14:53] } 53. Kxg6 { 1-0 White wins. } { [%clk 1:00:33] } 1-0