[Event "Østfoldmesterskapet lyn 2021"] [Site "https://lichess.org/8qwyUmY4"] [Date "2021.12.19"] [White "Hansmartins"] [Black "olamnik"] [Result "0-1"] [UTCDate "2021.12.19"] [UTCTime "18:39:46"] [WhiteElo "1695"] [BlackElo "1765"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+14"] [Variant "Standard"] [TimeControl "180+2"] [ECO "A46"] [Opening "Indian Defense: London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 e6 3. Bf4 { A46 Indian Defense: London System } c5 4. c3 Qb6 5. Qb3 Nc6 6. Nbd2 d5 7. e3 c4 8. Qxb6?! { (0.67 → -0.11) Inaccuracy. Qc2 was best. } (8. Qc2 Nh5 9. Be5 f6 10. Bg3 g5 11. b3 cxb3 12. Nxb3 Be7) 8... axb6 9. Be2?! { (0.00 → -0.83) Inaccuracy. a3 was best. } (9. a3 b5 10. Rd1 Nh5 11. Bg3 f6 12. Be2 Kd7 13. e4 Nxg3 14. hxg3 dxe4 15. Nxe4 Kc7) 9... b5 10. O-O Be7?! { (-0.95 → -0.07) Inaccuracy. b4 was best. } (10... b4 11. cxb4 Bxb4 12. a3 Be7 13. Ne5 Nxe5 14. dxe5 Nd7 15. e4 g5 16. Be3 Nxe5 17. Bd4) 11. a3 O-O 12. Bd1? { (-0.09 → -1.68) Mistake. Bg5 was best. } (12. Bg5 Ra6) 12... b4 13. cxb4 Nxb4 14. Rb1 Nc6 15. Bc2 b5 16. Ne5 Bb7 17. Nxc6 Bxc6 18. Ra1 Ra6 19. Nf3 Rfa8 20. Ne5?! { (-2.39 → -3.52) Inaccuracy. Rac1 was best. } (20. Rac1) 20... Be8 21. Rfe1?! { (-3.61 → -4.87) Inaccuracy. Rac1 was best. } (21. Rac1) 21... b4 22. e4 bxa3?! { (-6.21 → -4.33) Inaccuracy. b3 was best. } (22... b3 23. Bb1 Bb4 24. Re2 dxe4 25. Bd2 Bxd2 26. Rxd2 Rc8 27. f3 e3 28. Re2 c3 29. Bd3) 23. bxa3 Rxa3 24. Rxa3 Rxa3 25. exd5 Nxd5 26. Bc1 Rc3?! { (-5.74 → -3.95) Inaccuracy. Ra1 was best. } (26... Ra1) 27. Be4 Nf6?! { (-3.90 → -2.47) Inaccuracy. f6 was best. } (27... f6 28. Bb2 fxe5 29. Bxd5 Rb3 30. Bxe6+ Bf7 31. Bxf7+ Kxf7 32. Ba1 Bb4 33. Rc1 c3 34. Bxc3) 28. Bf3 Bb5 29. Bb2?? { (-1.81 → -6.53) Blunder. Bd2 was best. } (29. Bd2 Rc2 30. Be3 Ra2 31. Rb1 c3 32. g4 Rb2 33. Ra1 c2 34. Ra8+ Ne8 35. Kg2 Bf8) 29... Rb3 30. Bc1 c3? { (-6.85 → -4.03) Mistake. Bb4 was best. } (30... Bb4 31. Rf1 c3 32. Bd1 c2 33. Bxc2 Rc3 34. Ba4 Bxf1 35. Bb2 Be2 36. Bxc3 Bxc3 37. Bc6) 31. Re3? { (-4.03 → -7.76) Mistake. Bc6 was best. } (31. Bc6) 31... Ba3 32. Re1 c2 33. h3 Bxc1 34. Rxc1 Rb1 35. Rxb1 cxb1=Q+ 36. Kh2 Nd5 37. Ng4 h6 38. h4 Bc4 39. g3 Qb3 40. Kg2? { (-9.77 → Mate in 18) Checkmate is now unavoidable. Be4 was best. } (40. Be4) 40... Qd3?! { (Mate in 18 → -10.78) Lost forced checkmate sequence. Bf1+ was best. } (40... Bf1+ 41. Kxf1 Qxf3 42. Nxh6+ gxh6 43. Ke1 Kg7 44. Kd2 Qxf2+ 45. Kd3 Qxg3+ 46. Kc2 Qxh4 47. Kd1) 41. Nh2 Qxd4 42. Ng4 Qd2 43. Ne5 Ba2?! { (Mate in 6 → -11.04) Lost forced checkmate sequence. Ne3+ was best. } (43... Ne3+ 44. Kg1 Qe1+ 45. Kh2 Qxf2+ 46. Kh1 Bd5 47. Bxd5 exd5 48. Nf3 Qg2#) 44. Ng4 Kf8 45. Ne5?! { (-11.48 → Mate in 7) Checkmate is now unavoidable. Kg1 was best. } (45. Kg1 Nb4) 45... Ke7?! { (Mate in 7 → -11.31) Lost forced checkmate sequence. Ne3+ was best. } (45... Ne3+ 46. Kh3 Qxf2 47. Ng4 Qf1+ 48. Kh2 Nxg4+ 49. Bxg4 Bd5 50. Bf3 Bxf3 51. h5 Qg2#) 46. Ng4?! { (-11.31 → Mate in 9) Checkmate is now unavoidable. Kf1 was best. } (46. Kf1 Qc3) 46... f6?! { (Mate in 9 → -11.77) Lost forced checkmate sequence. h5 was best. } (46... h5 47. Kg1 Qe1+ 48. Kh2 hxg4 49. Kg2 Bc4 50. Be4 Qxe4+ 51. Kg1 Qe1+ 52. Kg2 Be2 53. f3) 47. Nh2?! { (-11.77 → Mate in 7) Checkmate is now unavoidable. Kg1 was best. } (47. Kg1 Nb4) 47... e5?! { (Mate in 7 → -11.28) Lost forced checkmate sequence. Ne3+ was best. } (47... Ne3+ 48. Kh3 Qxf2 49. Ng4 Qf1+ 50. Kh2 Nxg4+ 51. Bxg4 Bd5 52. Bf3 Bxf3 53. h5 Qg2#) 48. Ng4?! { (-11.28 → Mate in 9) Checkmate is now unavoidable. Nf1 was best. } (48. Nf1 Qc2) 48... Kf7?! { (Mate in 9 → -11.35) Lost forced checkmate sequence. h5 was best. } (48... h5 49. Kg1 Qe1+ 50. Kg2 hxg4 51. Bxg4 Bc4 52. Bd1 Ne3+ 53. fxe3 Bf1+ 54. Kg1 Qxd1 55. e4) 49. Nh2?! { (-11.35 → Mate in 7) Checkmate is now unavoidable. Kh2 was best. } (49. Kh2 Nc3) 49... Ne3+ 50. Kh3 Nf5?! { (Mate in 6 → -11.67) Lost forced checkmate sequence. Be6+ was best. } (50... Be6+ 51. g4 Qxf2 52. h5 Bxg4+ 53. Bxg4 Qg2+ 54. Kh4 Qxh2+ 55. Bh3 Qf2#) 51. Kg2?! { (-11.67 → Mate in 7) Checkmate is now unavoidable. g4 was best. } (51. g4 Nd6) 51... Bb3?! { (Mate in 7 → -10.18) Lost forced checkmate sequence. Ne3+ was best. } (51... Ne3+ 52. Kh3 Qxf2 53. Bh5+ g6 54. Bxg6+ Kxg6 55. h5+ Kf7 56. g4 Qg2+ 57. Kh4 Qxh2#) 52. Ng4 Bc2 53. Nh2?! { (-17.36 → Mate in 7) Checkmate is now unavoidable. Kh2 was best. } (53. Kh2 h5) 53... Ne3+ 54. Kh3 Qxf2 55. Ng4 Qxf3 56. Nxe5+ fxe5 57. h5 Qxh5# { Black wins by checkmate. } 0-1