[Event "FIDE World Youth Championships Under-18 Open"] [Site "Brazil"] [Round "8.4"] [White "Chasin, Nico"] [Black "Droin, Augustin"] [Result "0-1"] [WhiteElo "2412"] [WhiteTitle "IM"] [WhiteFideId "30908477"] [BlackElo "2475"] [BlackTitle "IM"] [BlackFideId "45105987"] [Annotator "https://lichess.org/@/LinuxBrickie"] [Variant "Standard"] [ECO "D37"] [Opening "Queen's Gambit Declined: Barmen Variation"] [StudyName "2024 FIDE World Youth Championships"] [ChapterName "Chasin, Nico - Droin, Augustin"] [UTCDate "2024.11.08"] [UTCTime "18:36:58"] [Source "https://lichess.org/study/5wenBA8d/iKvwmeul"] [Orientation "white"] 1. d4 { [%eval 0.17] [%clk 1:21:44] } 1... Nf6 { [%eval 0.17] [%clk 1:30:55] } 2. c4 { [%eval 0.16] [%clk 1:22:10] } 2... e6 { [%eval 0.11] [%clk 1:31:23] } 3. Nf3 { [%eval 0.12] [%clk 1:22:31] } 3... d5 { [%eval 0.17] [%clk 1:31:51] } 4. Nc3 { [%eval 0.1] [%clk 1:22:55] } 4... Nbd7 { [%eval 0.25] [%clk 1:32:19] } 5. g3 { [%eval 0.01] [%clk 1:21:58] } 5... dxc4 { [%eval 0.0] [%clk 1:32:18] } 6. Bg2 { [%eval 0.01] [%clk 1:22:10] } 6... Be7 { [%eval 0.28] [%clk 1:30:49] } 7. O-O { [%eval 0.15] [%clk 1:18:11] } 7... O-O { [%eval 0.14] [%clk 1:31:09] } 8. e4 { [%eval 0.0] [%clk 1:18:12] } 8... Rb8 { [%eval 0.0] [%clk 1:31:36] } 9. a4 { [%eval 0.07] [%clk 1:15:38] } 9... a6 { [%eval 0.07] [%clk 1:31:56] } 10. a5 { [%eval 0.06] [%clk 1:10:11] } 10... b5 { [%eval 0.01] [%clk 1:26:13] } 11. axb6 { [%eval 0.0] [%clk 1:10:10] } 11... Nxb6 { [%eval 0.0] [%clk 1:26:41] } 12. Qe2 { [%eval 0.0] [%clk 1:08:52] } 12... Bb7 { [%eval 0.0] [%clk 1:26:07] } 13. Rd1 { [%eval 0.0] [%clk 1:09:20] } 13... Bb4 { [%eval 0.0] [%clk 1:18:21] } 14. Ne5 { [%eval 0.0] [%clk 1:03:04] } 14... a5 { [%eval 0.0] [%clk 1:18:24] } 15. Na2 { [%eval -0.21] [%clk 1:03:16] } 15... Bd6 { [%eval 0.0] [%clk 1:17:50] } 16. Nc3 { [%eval -0.01] [%clk 1:03:06] } 16... Bxe5 { [%eval -0.1] [%clk 1:13:38] } 17. dxe5 { [%eval 0.0] [%clk 1:02:49] } 17... Nfd7 { [%eval -0.04] [%clk 1:14:07] } 18. Qh5 { [%eval -0.21] [%clk 0:58:14] } 18... Qe7 { [%eval -0.2] [%clk 0:55:18] } 19. Rxa5 { [%eval -0.25] [%clk 0:57:20] } 19... Rfc8 { [%eval -0.12] [%clk 0:55:14] } 20. Bg5 { [%eval -0.46] [%clk 0:53:50] } 20... Qb4 { [%eval -0.57] [%clk 0:54:45] } 21. Rb5 { [%eval -0.48] [%clk 0:53:19] } 21... Qf8 { [%eval -0.68] [%clk 0:55:12] } 22. Qh4 { [%eval -0.82] [%clk 0:53:28] } 22... Bc6 { [%eval -0.85] [%clk 0:47:31] } 23. Be7 { [%eval -0.79] [%clk 0:53:32] } 23... Qe8 { [%eval -0.78] [%clk 0:47:58] } 24. Ra5 { [%eval -0.79] [%clk 0:53:53] } 24... Nf8?! { [%eval -0.16] [%clk 0:48:21] } (24... Ra8 25. Rxa8 Rxa8 26. f4 Na4 27. Nxa4 Bxa4 28. Rd2 Qb8 29. h3 Qb3 30. Kh2) 25. Ba3 { [%eval -0.22] [%clk 0:53:14] } 25... Rd8? { [%eval 1.52] [%clk 0:47:00] } (25... Na4 26. Nxa4) 26. Rxd8 { [%eval 1.41] [%clk 0:49:49] } 26... Rxd8 { [%eval 1.43] [%clk 0:47:14] } 27. Rc5? { [%eval -0.61] [%clk 0:49:41] } (27. Qe7) 27... Rd4 { [%eval -0.38] [%clk 0:42:09] } 28. Qg5 { [%eval -0.52] [%clk 0:46:44] } 28... Qa8 { [%eval 0.0] [%clk 0:34:01] } 29. Bf1 { [%eval -0.03] [%clk 0:44:01] } 29... h6 { [%eval 0.0] [%clk 0:30:49] } 30. Qe3 { [%eval -0.05] [%clk 0:43:29] } 30... Rd8 { [%eval 0.0] [%clk 0:31:17] } 31. Bb4 { [%eval -0.1] [%clk 0:39:38] } 31... Qb7 { [%eval 0.0] [%clk 0:31:28] } 32. Ra5 { [%eval 0.0] [%clk 0:36:44] } 32... Nfd7 { [%eval 0.0] [%clk 0:25:30] } 33. Ba3 { [%eval 0.0] [%clk 0:33:03] } 33... Ra8 { [%eval 0.0] [%clk 0:16:02] } 34. Rxa8+ { [%eval -0.06] [%clk 0:33:23] } 34... Qxa8 { [%eval -0.02] [%clk 0:16:31] } 35. Qd4 { [%eval -0.01] [%clk 0:33:45] } 35... Na4 { [%eval 0.0] [%clk 0:15:54] } 36. Nb1 { [%eval -0.14] [%clk 0:30:36] } 36... Bxe4 { [%eval -0.07] [%clk 0:10:59] } 37. Qxd7 { [%eval -0.22] [%clk 0:30:46] } 37... Bxb1 { [%eval -0.24] [%clk 0:11:25] } 38. h4 { [%eval -0.58] [%clk 0:05:00] } 38... c3 { [%eval -0.35] [%clk 0:03:50] } 39. bxc3 { [%eval -0.57] [%clk 0:04:12] } 39... Nxc3 { [%eval -0.44] [%clk 0:04:14] } 40. Bc5 { [%eval -0.41] [%clk 0:33:33] } 40... Nd5 { [%eval -0.46] [%clk 0:31:48] } 41. h5?! { [%eval -1.67] [%clk 0:31:03] } (41. Qb5 Qa1 42. Qe8+ Kh7 43. Qxf7 Bf5 44. Bf8 Qxe5 45. Bg2 Nc3 46. Qd7 Be4) 41... Be4 { [%eval -1.77] [%clk 0:28:22] } 42. Kh2?! { [%eval -3.05] [%clk 0:27:30] } (42. Bd4 Bf3) 42... Qa1 { [%eval -3.07] [%clk 0:22:10] } 43. Qe8+ { [%eval -3.08] [%clk 0:23:48] } 43... Kh7 { [%eval -2.91] [%clk 0:22:37] } 44. Bg2 { [%eval -3.05] [%clk 0:24:13] } 44... Bxg2 { [%eval -3.12] [%clk 0:23:03] } 45. Kxg2 { [%eval -3.02] [%clk 0:24:36] } 45... Qxe5 { [%eval -3.0] [%clk 0:22:48] } 46. Qxf7 { [%eval -2.94] [%clk 0:25:04] } 46... Nf6 { [%eval -3.02] [%clk 0:22:01] } 47. Qg6+ { [%eval -2.95] [%clk 0:14:33] } 47... Kg8 { [%eval -2.93] [%clk 0:22:20] } 48. Be7 { [%eval -3.01] [%clk 0:14:49] } 48... Qxh5 { [%eval -2.74] [%clk 0:22:28] } 49. Qxh5?! { [%eval -3.98] [%clk 0:15:09] } (49. Qc2 Nd5 50. Ba3 Kf7 51. Kg1 Qf5 52. Qc1 h5 53. Bb2 h4 54. gxh4 Qg4+) 49... Nxh5 { [%eval -3.91] [%clk 0:22:55] } 50. Bd8 { [%eval -3.88] [%clk 0:15:32] } 50... c6 { [%eval -3.72] [%clk 0:23:23] } 51. Kf3 { [%eval -3.74] [%clk 0:15:57] } 51... Kf7 { [%eval -3.98] [%clk 0:23:26] } 52. Ke4 { [%eval -3.93] [%clk 0:16:19] } 52... Nf6+ { [%eval -3.92] [%clk 0:23:51] } 53. Kd4 { [%eval -3.8] [%clk 0:16:39] } 53... e5+ { [%eval -3.24] [%clk 0:19:50] } 54. Kc5?! { [%eval -5.27] [%clk 0:16:12] } (54. Kxe5 Ng4+ 55. Kf5 Nxf2 56. Bb6 Nh3 57. Bc7 Ng5 58. Bb6 Nh7 59. Be3 Nf6) 54... Ne4+ { [%eval -5.17] [%clk 0:16:09] } 55. Kxc6 { [%eval -4.93] [%clk 0:16:36] } 55... Nxf2 { [%eval -4.74] [%clk 0:16:34] } 56. Kd5 { [%eval -4.95] [%clk 0:17:03] } 56... Ng4 { [%eval -5.01] [%clk 0:17:00] } 57. Kd6 { [%eval -4.81] [%clk 0:17:08] } 57... g5 { [%eval -4.62] [%clk 0:16:51] } 58. Kd5 { [%eval -4.61] [%clk 0:17:14] } 58... Kg6 { [%eval -4.14] [%clk 0:15:31] } 59. Ke4 { [%eval -4.19] [%clk 0:16:44] } 59... h5?? { [%eval -0.09] [%clk 0:08:49] } (59... Kg7! { Black's only winning move is counterintuitive, ceding control of the f5-square. } 60. Kf5 Ne3+ 61. Kxe5 Nf1 { There is no defense of the g-pawn! } 62. g4 Kg6!! { Incredible. White's resource is Bd8xg5 followed by Ke5-f5 to win both pawns, so this intermezzo anticipates the Ke5-f5 rejoinder before winning the g4-pawn (and the game) on the next move. } { [%csl Bg4][%cal Bf1e3,Bf1h2,Re5f5,Rd8g5] } (62... Ne3? 63. Ke4 Nxg4 64. Bxg5 hxg5 65. Kf5 $10)) 60. Be7?? { [%eval -5.11] } { This prevents ... h5-h4, but loses the g-pawn when the bishop can't stop the connected passers. } { [%clk 0:14:37] } (60. Bc7! { Now Black's knight can't win the g3-pawn after ... Ng4-f2+-h1, as the bishop x-rays the g3-pawn. } { [%cal Gc7g3] } 60... Nf2+ (60... Kf6 61. Bd8+ Kg6 62. Bc7 { repeats. }) (60... h4 61. gxh4 gxh4 62. Kf3 Kf5 63. Kg2! { This isn't as passive as it looks, with advancing king moves being met by Kg2-h3 forking the knight and h4-pawn. } { [%csl Rh4,Yg4][%cal Gg2h3] })) (60. Ba5! { This also holds: } 60... Nf2+ 61. Kxe5 Nh1 62. Be1 $10 { White is just in time to defend. }) 60... Nf2+ { [%eval -5.05] [%clk 0:06:40] } 61. Kf3 { [%eval -4.73] } { White realizes that the e-pawn is poisoned. } { [%clk 0:13:17] } (61. Kxe5 Nh1 { The point is that White has no way to defend the g3-pawn. If the bishop were on the h2-b8 diagonal, however, it would be a different story. } { [%cal Rb8g3] }) 61... Nd1 { [%eval -5.24] [%clk 0:06:43] } 62. Ke4 { [%eval -4.77] [%clk 0:08:58] } 62... Nc3+ { [%eval -5.35] } { Keeping an eye on the g3-pawn! } { [%clk 0:07:05] } 63. Kxe5 { [%eval -5.8] } { There's nothing better. Now Black demonstrates why the connected passers are winning: } { [%clk 0:09:27] } 63... Ne2 { [%eval -5.7] [%clk 0:07:32] } 64. g4 { [%eval -6.82] [%clk 0:09:51] } 64... hxg4 { [%eval -6.55] [%clk 0:07:48] } (64... h4?? 65. Ke4 Ng3+ 66. Kf3 $10) 65. Ke4 { [%eval -5.75] [%clk 0:10:20] } 65... Ng3+ { [%eval -5.61] [%clk 0:03:28] } 66. Ke5 { [%eval -5.45] [%clk 0:10:47] } 66... Kh5 { [%eval -5.77] [%clk 0:03:44] } 67. Bd8 { [%eval -6.42] [%clk 0:05:15] } 67... Ne2 { [%eval -6.34] [%clk 0:03:13] } 68. Kf5 { [%eval -6.5] [%clk 0:05:44] } 68... g3 { [%eval -6.43] [%clk 0:01:15] } 69. Bxg5 { [%eval -6.9] [%clk 0:06:08] } 69... Nd4+! { [%eval -6.84] } { The last finesse. } { [%clk 0:01:43] } (69... g2?? 70. Be3 $10) 70. Kf6 { [%eval -6.49] } { A necessary concession, giving Black's king a path to defend the e3-square from White's bishop. } { [%clk 0:06:37] } (70. Kf4 g2 { wins, when there is no Bg5-e3, although so does ... Nd4-e6+. }) 70... Kg4 { [%eval -6.48] [%clk 0:00:59] } 71. Be3 { [%eval -6.33] [%clk 0:06:40] } 71... Nc2 { [%eval -6.99] [%clk 0:01:22] } 72. Bg1 { [%eval -6.94] } { The bishop will be kicked back on the g1-a7 diagonal before ... Nc2-e3 closes off the service route and Black promotes the g-pawn. } { [%clk 0:05:34] } 72... Ne1 { [%eval -6.82] [%clk 0:01:48] } 73. Ba7 { [%eval -6.69] [%clk 0:05:46] } 73... Nd3 { [%eval -6.56] [%clk 0:01:33] } 74. Kg6 { [%eval -80.53] [%clk 0:01:09] } 74... Nf2 { [%eval -64.06] [%clk 0:02:00] } 75. Bb6 { [%eval -78.02] [%clk 0:00:40] } 75... Kf3 { [%eval -52.83] [%clk 0:02:16] } 76. Bc7 { [%eval -60.78] [%clk 0:01:09] } 76... g2 { [%eval -10.91] [%clk 0:02:43] } 77. Bh2 { [%eval -197.61] [%clk 0:01:31] } 77... Ng4 { [%eval -7.14] } 78. Bg1 { [%eval -6.84] } 78... Ke2 { [%eval -6.35] [%clk 0:03:18] } 79. Kh5 { [%clk 0:01:44] } 79... Kf1 { With ... Ng4-f2 coming after any retreating bishop move, White resigned. } { [%clk 0:03:45] } 0-1