[Event "2024 FIDE World School Championship U-9"] [Site "Lima, Peru"] [White "Manchanda, Advik"] [Black "Banchon Crespo, Bruno Xavier"] [Result "1-0"] [WhiteElo "1673"] [WhiteFideId "30994977"] [BlackElo "1603"] [BlackFideId "3653161"] [Annotator "Lang, JJ"] [Variant "Standard"] [ECO "C10"] [Opening "French Defense: Rubinstein Variation, Fort Knox Variation"] [UTCDate "2024.05.10"] [UTCTime "15:31:17"] [Source "https://lichess.org/study/FWhzaWOS/d0jV1vkr"] [Orientation "white"] 1. e4 { [%eval 0.14] [%clk 1:30:57] } 1... e6 { [%eval 0.38] [%clk 1:30:55] } 2. d4 { [%eval 0.41] [%clk 1:31:16] } 2... d5 { [%eval 0.35] [%clk 1:31:12] } 3. Nc3 { [%eval 0.29] [%clk 1:31:31] } 3... dxe4 { [%eval 0.39] [%clk 1:31:33] } 4. Nxe4 { [%eval 0.36] [%clk 1:31:10] } 4... Bd7 { [%eval 0.53] [%clk 1:31:56] } 5. Nf3 { [%eval 0.48] [%clk 1:29:55] } 5... Bc6 { [%eval 0.49] [%clk 1:32:19] } 6. Bd3 { [%eval 0.51] [%clk 1:29:29] } 6... Nd7 { [%eval 0.5] [%clk 1:31:55] } 7. O-O { [%eval 0.46] [%clk 1:28:20] } 7... g6?! { [%eval 1.38] } { White gets some redemption against the French defense in the final round, admittedly from a less testing variation. } { [%clk 1:29:50] } (7... Ngf6 { is far and away the main move here. }) 8. Re1 { [%eval 1.45] [%clk 1:26:57] } 8... Bg7 { [%eval 1.61] [%clk 1:30:13] } 9. c4 { [%eval 1.31] [%clk 1:26:13] } (9. Neg5 { is already critical! } 9... Ngf6?? 10. Nxf7 Kxf7 11. Ng5+ Kg8 12. Nxe6 Qc8 13. Nxg7 Kxg7 14. Re7+ Kf8 15. Qe2 h6 16. Bd2 $18 { is a thematic knight sac in the "Fort Knox" variation, with Black's bishop sitting pretty on c6 but not defending the e6-square as a result. }) 9... Ngf6?? { [%eval 3.41] } { A mistake here, too, missing White's intention. } { [%clk 1:29:40] } (9... Ne7 { was necessary to clog the e-file. } 10. Bg5 O-O 11. Qd2 f5 { gives Black some bite, but } 12. Bxe7 Qxe7 13. Neg5 e5 14. d5 { is a very pleasant position. } 14... Nc5 15. Nxe5 Bxe5 16. Nf3 Ne4 17. Bxe4 fxe4 18. Nxe5 Qxe5 19. dxc6 bxc6 20. Rad1 $16 { is an example of how the complications can play out in a way that favor the side with better-developed pieces. }) 10. d5! { [%eval 3.34] } { Thematic against a king stuck on the e-file. Again, the pretty bishop on c6 proves to be more of a liability than an asset! } { [%clk 1:26:01] } 10... Nxd5 { [%eval 3.46] [%clk 1:29:18] } (10... exd5 11. Nxf6+ $18) 11. cxd5 { [%eval 3.51] [%clk 1:25:38] } 11... Bxd5 { [%eval 3.57] [%clk 1:29:41] } 12. Bg5 { [%eval 3.53] [%clk 1:25:29] } 12... f6 { [%eval 3.5] [%clk 1:28:43] } 13. Bf4 { [%eval 3.27] [%clk 1:22:40] } 13... O-O { [%eval 3.4] [%clk 1:27:36] } 14. Nc3 { [%eval 3.53] [%clk 1:21:23] } 14... Bxf3 { [%eval 4.3] [%clk 1:27:23] } 15. Qxf3 { [%eval 4.32] [%clk 1:21:11] } 15... e5 { [%eval 4.29] [%clk 1:27:01] } 16. Be3 { [%eval 4.23] [%clk 1:20:24] } 16... c6 { [%eval 4.29] [%clk 1:26:15] } 17. Rad1 { [%eval 4.3] [%clk 1:20:15] } 17... Qe7 { [%eval 4.06] [%clk 1:24:31] } 18. Qe2 { [%eval 3.43] [%clk 1:12:50] } 18... Kh8 { [%eval 3.89] [%clk 1:21:17] } 19. Qd2 { [%eval 3.34] [%clk 1:11:46] } 19... Nb6 { [%eval 3.42] [%clk 1:21:29] } 20. Bxb6 { [%eval 2.79] } { An unnecessary trade, giving up the bishop pair, and also giving Black's rook more purpose. } { [%clk 1:09:48] } 20... axb6 { [%eval 2.91] [%clk 1:21:48] } 21. Qe3 { [%eval 2.58] [%clk 1:10:04] } 21... b5 { [%eval 2.53] [%clk 1:21:17] } 22. a3 { [%eval 2.13] [%clk 1:07:54] } 22... b4 { [%eval 2.63] } { Black has some counterplay! } { [%clk 1:17:10] } 23. Nb1?! { [%eval 1.97] } { A typical type of error from the side who has won a piece early: the hope is we can just huddle and the extra piece will still be decisive. But, if it's on b1, is that really going to be the case? } { [%clk 1:06:48] } (23. axb4 Qxb4 24. Rd2 { and okay, Black had some counterplya, but not that much counterplay. }) 23... f5 { [%eval 1.82] [%clk 1:12:23] } 24. f3 { [%eval 1.88] [%clk 1:06:23] } 24... e4 { [%eval 1.85] [%clk 1:11:53] } 25. fxe4 { [%eval 1.85] [%clk 1:01:18] } 25... Bxb2 { [%eval 1.95] [%clk 1:11:56] } 26. axb4 { [%eval 1.83] [%clk 1:01:26] } 26... Qxb4 { [%eval 1.83] [%clk 1:12:14] } 27. Kh1 { [%eval 1.8] [%clk 1:01:07] } 27... Rae8 { [%eval 1.99] [%clk 1:11:38] } 28. Qd2 { [%eval 1.47] [%clk 1:00:24] } 28... Qxd2 { [%eval 1.62] [%clk 1:11:42] } 29. Rxd2 { [%eval 1.54] [%clk 1:00:49] } 29... fxe4 { [%eval 1.89] } { Until here, White has simply been up a piece, albeit for three pawns. } { [%clk 1:11:36] } 30. Rxb2?? { [%eval 0.02] [%clk 0:59:00] } (30. Rde2 { keeps playing for a win. }) (30. Ba6! { is an ingenious way to control the terms of the trade. } 30... bxa6 { is a serious concession, with one isolated pawn turning into three for Black. } (30... Bf6 31. Bxb7 { regains a pawn, so is hardly preferable. }) 31. Rxb2 $16) 30... exd3 { [%eval 0.12] } { The central pawn advances and Black's counterplay grows. } { [%clk 1:11:48] } 31. Rd1 { [%eval 0.0] [%clk 0:56:34] } 31... Re2 { [%eval 0.0] [%clk 1:11:26] } 32. Rbd2 { [%eval -0.16] [%clk 0:55:47] } (32. Rxb7 d2 33. Rg1 Rd8 34. Nxd2 $10 { was White's best bet in this line. }) 32... Rxd2 { [%eval 0.0] [%clk 1:11:34] } 33. Nxd2 { [%eval -0.05] [%clk 0:56:10] } 33... b5 { [%eval 0.35] [%clk 1:11:50] } (33... c5 { Connecting the pawns has to be Black's highest priority. }) 34. Nf3 { [%eval 0.0] [%clk 0:55:54] } (34. Nb3 { And disconnecting the pawns must be White's highest priority! }) 34... Rd8 { [%eval 0.0] [%clk 1:12:10] } 35. Ne5 { [%eval 0.0] [%clk 0:56:02] } 35... Kg7?? { [%eval 2.37] [%clk 1:12:30] } (35... Rd5 36. Nxd3 (36. Nxc6 d2 37. Nb4 Rc5 38. Nd3 Rc2! { The key move and the only one that keeps Black in the game. } (38... Rc3? 39. Rxd2 { wins, since the knight covers the c1-square. This would be enough to discourage Black from these variations. })) 36... c5 37. Nb2 { is good for no more than a draw: } 37... Rxd1+ 38. Nxd1 b4 39. Nb2 Kg7 40. Kg1 Kf6 41. Kf2 Ke5 42. Ke3 Kd5 { and White's king was not close enough to stop the c-pawn's advancement. } 43. Kd3 Ke5 $10) 36. Nxc6 { [%eval 2.37] } { Black loses the pawn and a key tempo. } { [%clk 0:54:33] } 36... Rc8 { [%eval 2.24] [%clk 1:12:36] } (36... Rd6 37. Nb4 d2 38. Kg1 $18 { Black's rook cannot quickly reach the c-file and is not in time to utilize the e-file. }) 37. Nd4 { [%eval 2.35] [%clk 0:54:48] } 37... b4 { [%eval 2.6] [%clk 1:12:53] } 38. Kg1 { [%eval 2.58] [%clk 0:54:14] } 38... Rc3 { [%eval 2.55] [%clk 1:13:07] } 39. Ne6+ { [%eval 2.51] [%clk 0:53:24] } 39... Kf6 { [%eval 2.51] [%clk 1:13:29] } 40. Nf4 { [%eval 2.78] [%clk 0:53:41] } 40... Kf5 { [%eval 2.8] [%clk 1:12:47] } 41. Nxd3 { [%eval 2.68] } { White is inching closer to a win! } { [%clk 0:50:59] } 41... b3 { [%eval 2.54] [%clk 1:13:09] } 42. Kf2?! { [%eval 0.94] } { This allows Black one more trick. } { [%clk 0:48:05] } (42. Kf1 { is safer. The king can come to e2, which is very different from the f2-square, as we'll soon see in the below variation. }) 42... Ke4? { [%eval 2.58] [%clk 1:11:50] } (42... b2 43. Ke3 { is White's only hope. } (43. Nxb2? Rc2+ { was the tactical point. }) 43... Rc2 44. Rb1 Rxg2 45. Rxb2 { and White is better, but every trade of pawns inches Black closer to a drawn rook-and-knight versus rook endgame. }) 43. Ke2 { [%eval 2.51] [%clk 0:39:12] } 43... h5 { [%eval 3.08] [%clk 1:12:08] } 44. Nf2+ { [%eval 2.92] [%clk 0:37:14] } 44... Ke5 { [%eval 2.83] [%clk 1:09:28] } 45. Rd2 { [%eval 2.85] [%clk 0:31:09] } 45... g5 { [%eval 2.98] [%clk 1:09:22] } 46. Rb2 { [%eval 2.9] [%clk 0:26:22] } 46... Kd4 { [%eval 2.77] [%clk 1:06:15] } 47. Kd2 { [%eval 1.89] [%clk 0:25:34] } 47... Rc2+ { [%eval 6.67] } { Black is lost, but this is effectively a resignation. } { [%clk 1:06:31] } (47... Kc4) 48. Rxc2 { [%eval 6.51] [%clk 0:25:03] } 48... bxc2 { [%eval 6.51] [%clk 1:06:56] } 49. Nd3 { [%eval 5.69] [%clk 0:24:46] } 49... Ke4 { [%eval 5.55] [%clk 1:07:02] } 50. Nf2+ { [%eval 6.63] [%clk 0:23:15] } 50... Kd4 { [%eval 6.37] [%clk 1:07:04] } 51. Nh1 { [%eval 5.53] [%clk 0:23:25] } 51... c1=Q+ { [%eval 6.37] [%clk 1:07:16] } 52. Kxc1 { [%eval 6.37] [%clk 0:23:49] } 52... Ke3 { [%eval 8.06] [%clk 1:07:40] } 53. Kd1 { [%eval 8.05] [%clk 0:24:10] } 53... g4 { [%eval 8.05] [%clk 1:07:54] } 54. Ke1 { [%eval 6.89] [%clk 0:24:05] } 54... h4 { [%eval 8.02] [%clk 1:08:14] } 55. Kf1 { [%eval 8.96] [%clk 0:24:25] } 55... Ke4 { [%eval 8.59] [%clk 1:07:05] } 56. Ke2 { [%eval 8.23] [%clk 0:24:19] } 56... Kf4 { [%eval 8.96] } 57. g3+ { [%eval 8.96] [%clk 0:24:14] } 57... hxg3 { [%eval 8.77] [%clk 1:07:09] } 58. hxg3+ { [%eval 8.77] [%clk 0:24:36] } 58... Kf5 { [%eval 8.77] [%clk 1:07:31] } 59. Ke3 { [%eval 8.77] [%clk 0:24:59] } 59... Ke5 { [%eval 8.77] [%clk 1:07:56] } 60. Nf2 { [%eval #50] [%clk 0:25:13] } 60... Kf5 { [%eval #43] [%clk 1:08:19] } 61. Kd4 { [%eval 8.39] [%clk 0:25:35] } 61... Kg5 { [%eval #25] [%clk 1:08:34] } 62. Ke4 { [%eval 8.27] [%clk 0:25:58] } 62... Kh5 { [%eval #14] [%clk 1:08:55] } 63. Kf5 { [%eval #13] [%clk 0:26:16] } 63... Kh6 { [%eval #14] [%clk 1:09:19] } 64. Nxg4+ { [%eval #15] [%clk 0:26:35] } 64... Kg7 { [%eval #15] [%clk 1:09:44] } 65. Ne5 { [%eval #14] [%clk 0:26:50] } 65... Kh6 { [%eval #11] [%clk 1:10:06] } 66. g4 { [%eval #10] [%clk 0:27:14] } 66... Kg7 { [%eval #10] [%clk 1:10:32] } 67. g5 { [%eval #9] [%clk 0:27:34] } 67... Kh7 { [%eval #7] [%clk 1:10:57] } 68. g6+ { [%eval #9] [%clk 0:27:49] } 68... Kg7 { [%eval #9] [%clk 1:11:19] } 69. Kg5 { [%eval #8] [%clk 0:28:12] } 69... Kh8 { [%eval #6] [%clk 1:11:40] } 70. Kf6 { [%eval #5] [%clk 0:28:13] } 70... Kg8 { [%eval #5] [%clk 1:12:05] } 71. g7 { [%eval #4] [%clk 0:28:28] } 71... Kh7 { [%eval #4] [%clk 1:12:28] } 72. Kf7 { [%eval #3] [%clk 0:28:45] } 72... Kh6 { [%eval #3] [%clk 1:12:52] } 73. g8=Q { [%eval #2] [%clk 0:29:01] } 73... Kh5 { [%eval #2] [%clk 1:13:19] } 74. Qg4+ { [%eval #1] [%clk 0:29:11] } 74... Kh6 { [%eval #1] [%clk 1:13:44] } 75. Qg6# { 1-0 White wins. } { [%clk 0:29:31] } 1-0