[Event "Ultilatie's Study: Chapter 1"] [Site "https://lichess.org/study/Nhn0iXa5/BTcICrLM"] [Date "2024.01.21"] [White "?"] [Black "?"] [Result "0-1"] [UTCDate "2024.01.21"] [UTCTime "07:15:23"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A48"] [Opening "Indian Defense: Colle System, King's Indian Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 g6 2. Nf3 Bg7 3. e3 d6 4. Bd3 Nf6 { A48 Indian Defense: Colle System, King's Indian Variation } 5. O-O O-O 6. Re1 Nbd7 7. Nbd2 c6 8. e4 Qb6 9. b3 e5 10. Bb2 exd4 11. Bxd4 c5 12. Bb2 d5? { (0.65 → 1.82) Mistake. Qc7 was best. } (12... Qc7 13. Bb5) 13. exd5 Nxd5 14. Bxg7?! { (2.00 → 0.93) Inaccuracy. Nc4 was best. } (14. Nc4) 14... Kxg7 15. c4?! { (1.02 → 0.28) Inaccuracy. Qc1 was best. } (15. Qc1) 15... Nf4 16. Bc2 Nf6 17. g3? { (0.10 → -1.09) Mistake. h3 was best. } (17. h3 Bd7) 17... Qc7?? { (-1.09 → 2.26) Blunder. Nh3+ was best. } (17... Nh3+) 18. gxf4 Qxf4 19. Kh1? { (2.37 → 0.88) Mistake. Qe2 was best. } (19. Qe2 Re8 20. Qf1 Bg4 21. Qg2 Nh5 22. h3 Bd7 23. Be4 Rad8 24. Bd5 Qc7 25. Qh2 Nf4) 19... Ng4? { (0.88 → 2.44) Mistake. Bg4 was best. } (19... Bg4 20. Re3) 20. Re4?? { (2.44 → -2.35) Blunder. Qe2 was best. } (20. Qe2 Bd7 21. Be4 Rae8 22. Qf1 b5 23. Qg2 Nf6 24. Bd5 bxc4 25. bxc4 Nxd5 26. cxd5 Bc8) 20... Nxf2+ 21. Kg1 Nxd1?? { (-2.32 → 1.62) Blunder. Nxe4 was best. } (21... Nxe4 22. Bxe4 Re8 23. Bd5 Bg4 24. Qf1 Re7 25. Qg2 Rae8 26. h3 Bxf3 27. Nxf3 Re2 28. Qg5) 22. Rxf4 Ne3 23. Bd3 Rd8 24. Ne1 Nc2? { (1.39 → 2.71) Mistake. f5 was best. } (24... f5 25. Rf2 a5 26. Re2 f4 27. Ne4 Rd4 28. Rf2 Ng4 29. Rxf4 Bf5 30. Rxf5 gxf5 31. Nxc5) 25. Bxc2 Rxd2 26. Rd1?! { (2.62 → 1.68) Inaccuracy. Be4 was best. } (26. Be4 a5 27. Bd5 Bf5 28. Nf3 Re2 29. Bxb7 Rae8 30. Bd5 f6 31. Nh4 Bd3 32. Ng2 g5) 26... Re2? { (1.68 → 3.14) Mistake. Rxd1 was best. } (26... Rxd1) 27. Kf1?? { (3.14 → 0.89) Blunder. Re4 was best. } (27. Re4 Rxc2 28. Nxc2 Bf5 29. Re7 Bxc2 30. Rdd7 Rf8 31. Rxb7 a5 32. Ra7 Bf5 33. Re2 h5) 27... Rxh2 28. Rf2? { (1.04 → -0.24) Mistake. Kg1 was best. } (28. Kg1 Re2 29. Re4 Rxc2 30. Nxc2 Bf5 31. Re7 Bxc2 32. Rdd7 h5 33. Rxb7 Bf5 34. Rxa7 Rd8) 28... Rh1+?! { (-0.24 → 0.32) Inaccuracy. Bh3+ was best. } (28... Bh3+ 29. Kg1) 29. Kg2 Rh5?! { (0.32 → 0.94) Inaccuracy. Rh4 was best. } (29... Rh4) 30. Nd3?! { (0.94 → 0.00) Inaccuracy. Be4 was best. } (30. Be4 Rb8 31. Bd5 Rf5 32. Re2 b5 33. Rdd2 bxc4 34. bxc4 Rg5+ 35. Kf2 Rf5+ 36. Nf3 g5) 30... Bh3+ 31. Kf3 Bf5? { (0.00 → 1.47) Mistake. Rg5 was best. } (31... Rg5 32. Re1 Rd8 33. Nf4 Bg4+ 34. Kg2 Bd1+ 35. Kh2 Bxc2 36. Rxc2 Rd4 37. Ng2 Kf8 38. Rf2) 32. Nf4 Rh4?? { (1.45 → 3.92) Blunder. Rg5 was best. } (32... Rg5 33. Bxf5 Rxf5 34. Rd5 Rf6 35. Rxc5 h5 36. Re5 Kh6 37. Ke3 g5 38. Nd5 Rxf2 39. Kxf2) 33. Bxf5 gxf5 34. Rg1+ Kf8 35. Rfg2 Ke7 36. Nd5+ Kd6 37. Kg3?! { (3.32 → 2.18) Inaccuracy. Nf4 was best. } (37. Nf4 Rd8 38. Re1 Kc6 39. Re5 Rh1 40. Rxf5 Rf1+ 41. Ke3 Re8+ 42. Kd3 Rd8+ 43. Kc2) 37... Rd4 38. Rh1?! { (2.08 → 1.04) Inaccuracy. Kf3 was best. } (38. Kf3) 38... Rg8+ 39. Kh2? { (0.62 → -0.60) Mistake. Kf3 was best. } (39. Kf3 Rxg2) 39... Re8? { (-0.60 → 0.82) Mistake. Rh4+ was best. } (39... Rh4+ 40. Kg1) 40. Kg3 Rg4+?! { (0.30 → 0.93) Inaccuracy. b5 was best. } (40... b5 41. Rc2 bxc4 42. bxc4 Ree4 43. Nc3 Rg4+ 44. Kf2 Rxc4 45. Rh6+ Kd7 46. Rxh7 Rh4 47. Rxh4) 41. Kf2?! { (0.93 → 0.28) Inaccuracy. Kf3 was best. } (41. Kf3) 41... Rd4?? { (0.28 → 2.13) Blunder. Rxg2+ was best. } (41... Rxg2+ 42. Kxg2 Re2+ 43. Kf3 Rxa2 44. Rd1 Rb2 45. Rd3 h5 46. Kf4 Rf2+ 47. Ke3 Rb2 48. Nb6+) 42. Rxh7?! { (2.13 → 1.38) Inaccuracy. Ne3 was best. } (42. Ne3 Rd2+ 43. Kf1 Rxg2 44. Nxg2 a6 45. Rxh7 b5 46. Rh6+ Re6 47. Rxe6+ fxe6 48. Kf2 Ke7) 42... Rd2+ 43. Kg1 Re1+ 44. Kh2 Rxg2+?! { (1.77 → 2.40) Inaccuracy. Ree2 was best. } (44... Ree2 45. Rxe2 Rxe2+ 46. Kg3 b5 47. Rxf7 bxc4 48. bxc4 Re4 49. Rxf5 Rxc4 50. Ne3 Ra4 51. Rd5+) 45. Kxg2 Re2+ 46. Kf1 Rxa2 47. Rh6+?? { (1.99 → 0.00) Blunder. Rxf7 was best. } (47. Rxf7 b6) 47... Ke5 48. Nc3 Rb2 49. Nd1?! { (0.00 → -0.63) Inaccuracy. Na4 was best. } (49. Na4 Rxb3 50. Nxc5 Rb1+ 51. Ke2 Kd4 52. Na4 Rb4 53. Rh4+ f4 54. Rxf4+ Ke5 55. Rxf7 Rxc4) 49... Rxb3 50. Ke2 a5 51. Kd2 a4 52. Nc3? { (-1.14 → -2.62) Mistake. Kc2 was best. } (52. Kc2 Rb4 53. Kc3 f4 54. Nf2 Rb3+ 55. Kc2 b6 56. Rh5+ Kd4 57. Rf5 Rc3+ 58. Kb1 Rf3) 52... a3 53. Rh1 Kd4 54. Rh4+ Ke5 55. Rh1 f4 56. Rh5+?? { (-2.43 → -5.39) Blunder. Rf1 was best. } (56. Rf1 Kf5 57. Kc2 Rb2+ 58. Kd3 a2 59. Ra1 f3 60. Rxa2 f2 61. Ra1 Kf4 62. Na4 Ra2) 56... f5 57. Kc2 Rb2+ 58. Kc1 Kd4?? { (-5.97 → -1.00) Blunder. Rg2 was best. } (58... Rg2 59. Kd1 a2 60. Nxa2 Rxa2 61. Rh7 b6 62. Ke1 Kd4 63. Rh6 Kxc4 64. Rxb6 Kd4 65. Rd6+) 59. Nb5+ Ke3?! { (-0.96 → -0.18) Inaccuracy. Ke5 was best. } (59... Ke5 60. Rh3 Rf2 61. Rxa3 f3 62. Kd1 Kf4 63. Ke1 Rc2 64. Ra8 Rxc4 65. Rf8 Ke3 66. Re8+) 60. Nxa3 Rg2 61. Rxf5 f3 62. Re5+?? { (0.00 → -4.75) Blunder. Nb1 was best. } (62. Nb1 Rg1+ 63. Kc2 Rxb1 64. Kxb1 f2 65. Kc2 Ke2 66. Kb3 f1=Q 67. Rxf1 Kxf1 68. Ka4 Ke2) 62... Kd3?? { (-4.75 → -0.01) Blunder. Kf4 was best. } (62... Kf4 63. Re7 f2 64. Rf7+ Kg3 65. Kd1 Rg1+ 66. Ke2 Re1+ 67. Kd3 f1=Q+ 68. Rxf1 Rxf1 69. Ke4) 63. Rd5+ Kc3 64. Nb1+ Kxc4 65. Rd1?? { (-0.05 → -6.26) Blunder. Rd7 was best. } (65. Rd7 f2 66. Nd2+ Kb5 67. Rxb7+ Kc6 68. Rf7 c4 69. Kc2 Kd6 70. Rf3 Ke6 71. Kc3 Rg8) 65... f2 66. Na3+ Kb4 67. Nc2+ Kc3 68. Ne3 Rg1 69. Nd5+?! { (-7.01 → -35.40) Inaccuracy. Nf1 was best. } (69. Nf1 b5 70. Kb1 c4 71. Ka2 b4 72. Rb1 Kd3 73. Rc1 c3 74. Rd1+ Ke2 75. Rd8 Kxf1) 69... Kb3 70. Ne3 Kc3? { (-35.33 → -5.88) Mistake. c4 was best. } (70... c4 71. Kd2 c3+ 72. Ke2 Rxd1 73. Kxd1 Kb2 74. Nc4+ Kb1 75. Ke2 c2 76. Na3+ Kb2 77. Nxc2) 71. Nd5+?! { (-5.88 → -7.99) Inaccuracy. Nf1 was best. } (71. Nf1 b5) 71... Kc4 72. Ne3+ Kb3 73. Kd2?! { (-5.55 → -9.37) Inaccuracy. Nf1 was best. } (73. Nf1 Kc3 74. Kb1 c4 75. Ka1 b5 76. Ka2 b4 77. Kb1 b3 78. Rc1+ Kd3 79. Kb2 Ke2) 73... Rxd1+ 74. Kxd1 c4 75. Ke2 c3 76. Kxf2 c2 77. Nxc2? { (-8.62 → Mate in 15) Checkmate is now unavoidable. Ng4 was best. } (77. Ng4 c1=Q 78. Kg2 b5 79. Kf3 Ka2 80. Kg3 Qc2 81. Kf4 b4 82. Ne5 Qc3 83. Kf5 b3) 77... Kxc2 78. Ke2 b5 79. Ke3 b4 80. Kd4 b3 81. Ke5 b2 82. Ke4 b1=Q 83. Ke5 Qb4 84. Kd5 Kd3 85. Ke5 Qa4 86. Kf5 Ke3 87. Ke5 Qa5+ 88. Ke6 Kf4 89. Kd6 Ke4 90. Ke6 Qa6+ 91. Ke7 Kd5 92. Kf7 Ke5 93. Ke7 Qa7+ 94. Kf8 Kf6 95. Ke8 Qe7# { Black wins by checkmate. } 0-1