[Event "2023 Winter Marathon"] [Site "https://lichess.org/KVSdupgV"] [Date "2023.12.29"] [White "aa175"] [Black "EricRosen"] [Result "1-0"] [UTCDate "2023.12.29"] [UTCTime "04:31:58"] [WhiteElo "2393"] [BlackElo "2515"] [WhiteRatingDiff "+13"] [BlackRatingDiff "-7"] [BlackTitle "IM"] [Variant "Standard"] [TimeControl "180+0"] [ECO "D00"] [Opening "Queen's Pawn Game: Accelerated London System, Steinitz Countergambit"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Bf4 c5 { D00 Queen's Pawn Game: Accelerated London System, Steinitz Countergambit } 3. Nf3 cxd4 4. c3 dxc3 5. Nxc3 e6 6. e4 Nf6 7. Bb5+ Bd7 8. Bxd7+ Nbxd7 9. exd5 exd5 10. O-O Be7 11. Nxd5 Nxd5 12. Qxd5 O-O? { (0.34 → 1.48) Mistake. Nc5 was best. } (12... Nc5 13. Qe5 O-O 14. Rad1 Qe8 15. Nd4 Na4 16. Nb5 Qc6 17. Rc1 Bf6 18. Qf5 Qe6 19. Qxe6) 13. Qxb7?! { (1.48 → 0.89) Inaccuracy. Rfe1 was best. } (13. Rfe1 Nf6 14. Qxb7 Bc5 15. Rad1 Qa5 16. Qb3 h6 17. h3 Rac8 18. Be5 Qa6 19. a3 Rfe8) 13... Nc5 14. Qc7 Qxc7 15. Bxc7 Bf6?! { (0.69 → 1.27) Inaccuracy. Nd3 was best. } (15... Nd3 16. b3 Rfc8 17. Bg3 Bf6 18. Rad1 Rd8 19. Bc7 Rd7 20. Rfe1 h5 21. Kf1 Rc8 22. Re3) 16. Be5 Bxe5 17. Nxe5 Rfe8 18. Rfe1 f6 19. Nc4 Nd3 20. Rxe8+ Rxe8 21. Rd1? { (1.86 → 0.24) Mistake. Kf1 was best. } (21. Kf1 g5 22. Rd1 Nb4 23. a3 Nc2 24. Rc1 Nd4 25. Na5 Kg7 26. b4 h5 27. Rc4 Rd8) 21... Re2 22. Kf1 Rxf2+ 23. Kg1 Rc2 24. Ne3 Rc1 25. Rxc1 Nxc1 26. a4 Nd3 27. b3?! { (-0.22 → -1.08) Inaccuracy. Nd1 was best. } (27. Nd1 Kf7 28. Kf1 Ke6 29. Ke2 Nc5 30. Nc3 a5 31. Ke3 Ke5 32. Na2 Nxa4 33. b4 axb4) 27... Nc5 28. Nd5?! { (-1.07 → -1.66) Inaccuracy. b4 was best. } (28. b4 Nxa4) 28... Nxb3 29. Ne7+?! { (-1.72 → -2.97) Inaccuracy. Nc3 was best. } (29. Nc3 Kf7) 29... Kf7 30. Nc6?! { (-2.57 → -3.87) Inaccuracy. Nc8 was best. } (30. Nc8 a6 31. Nd6+ Ke7 32. Nf5+ Kf8 33. Ne3 Nc5 34. a5 Kf7 35. Kf2 Ke6 36. Kf3 Kd7) 30... a5 31. Kf2 Ke6 32. Ke3 Kd6 33. Nd8?! { (-3.33 → -4.33) Inaccuracy. Na7 was best. } (33. Na7 Kc5 34. Nc8 Nd4 35. g4 f5 36. gxf5 Nxf5+ 37. Kd2 g6 38. Kd3 Nd6 39. Ne7 Nc4) 33... Nc5? { (-4.33 → -2.25) Mistake. Kd7 was best. } (33... Kd7 34. Nb7 Kc7 35. Nxa5 Nxa5 36. Ke4 Kd6 37. Kf5 Nc6 38. Ke4 g6 39. Kf4 Kd5 40. Ke3) 34. Kd4 Nxa4?? { (-1.92 → -0.19) Blunder. h5 was best. } (34... h5 35. Nf7+ Kc6 36. Nd8+ Kb6 37. g3 g6 38. Kc4 g5 39. Kd4 g4 40. Nf7 Nxa4 41. Nd6) 35. Nb7+ Ke6 36. Nxa5 Nb6 37. Nc6 Nd7 38. Ke3 Kd6 39. Nd4 g6 40. Kf2 Ne5 41. h3 Kd5 42. Nb5 Ke6 43. Nc7+ Kf7 44. Nb5 Nd7 45. Nd6+ Ke6 46. Nc4 Ne5 47. Nb2 Nd3+?? { (-0.24 → 4.17) Blunder. Kd5 was best. } (47... Kd5 48. Na4 Kc4 49. Nb6+ Kd4 50. Na4 f5 51. Nb6 g5 52. Nc8 Kd5 53. Ne7+ Ke6 54. Nc8) 48. Nxd3 Kf5 49. Ne1 Kg5?! { (3.69 → 4.75) Inaccuracy. Ke4 was best. } (49... Ke4 50. Nf3) 50. Nf3+ Kf5 51. Ke3 g5?! { (4.67 → 6.96) Inaccuracy. Ke6 was best. } (51... Ke6 52. Ke4) 52. g4+ Kg6 53. Nd4 Kf7 54. Nf5 Ke6 55. Ke4 Kf7 56. Kd5 Kg6 57. Ke6 h6 58. Ke7 h5 59. Ke6 hxg4 60. hxg4 Kh7 61. Kf7 Kh8 62. Kxf6 Kg8 63. Kxg5 Kh8?! { (37.10 → Mate in 8) Checkmate is now unavoidable. Kf7 was best. } (63... Kf7 64. Nh6+ Ke6 65. Kh5 Kd5 66. g5 Kd4 67. g6 Kd3 68. g7 Kc2 69. g8=Q Kb2 70. Kh4) 64. Kf4 Kg8 65. g5 Kh8 66. g6 Kg8 67. Kg5 Kh8 68. Kf6 Kg8 69. g7 Kh7 70. Ne7 Kh6 71. g8=Q Kh5 72. Qg3 Kh6 73. Qh4# { White wins by checkmate. } 1-0