[Event "?"] [Site "?"] [Date "2016.08.30"] [Round "4"] [White "Lio Sivan"] [Black "Yevgeny Levanzov"] [Result "0-1"] [ECO "B52"] [PlyCount "128"] [SourceDate "2016.08.31"] 1. e4 c5 2. Nf3 d6 3. Bb5+ {the Canal-Sokolsky attack.} Bd7 {main line.} (3... Nc6 4. Bxc6+ bxc6 {leads to similar positions to Rossolimo variation.}) (3... Nd7 {more positional.}) 4. Bxd7+ (4. a4) 4... Qxd7 (4... Nxd7) 5. O-O (5. c4) 5... Nc6 6. c3 (6. d4 {less good here.} cxd4 7. Nxd4 Nf6 8. Nc3) 6... Nf6 7. Qe2 (7. Re1) (7. d4) 7... g6 (7... e6) (7... Qg4 {with the idea of Ne5.} 8. Re1 ) 8. Rd1 Qg4 $1 {psychological effect! very hard now to play Re1, and d3 is a small concession.} 9. d3 {equal.} Ne5 (9... Bg7) 10. Nbd2 Bg7 (10... Nh5 $1 11. h3 Nf4) 11. h3 Nxf3+ 12. Nxf3 (12. Qxf3 {both trading and not trading are fine. }) 12... Qd7 (12... Qe6 13. Ng5) 13. d4 cxd4 14. cxd4 (14. Rxd4 {stronger.}) 14... Qc6 {to provoke d5. also, I overestimated e5.} (14... O-O 15. e5 Nd5) 15. d5 Qc7 (15... Qa4 16. Rd4 $1) 16. Bg5 O-O 17. Rac1 Qa5 {most active.} (17... Qd7 $6 {I want to improve the knight via d7.}) 18. a3 (18. b3) 18... Rac8 19. Rxc8 $6 {why voluntarily give away the file.} Rxc8 20. Rc1 $2 (20. Rd4) 20... Rxc1+ 21. Bxc1 {the bishop is very passive and black's queen is very active on the Q-side and the c file.} Qa4 $1 (21... Qc5 22. Be3) (21... Qc7) 22. Nd2 $2 ( 22. b4 {only move.}) 22... Qc2 $1 23. Qc4 {lesser evil.} (23. Qe1 Bh6 {now Nxe4 is a threat. white is almost lost.}) 23... Qxc4 24. Nxc4 Nxe4 {black is much better, but still a lot of work to be done.} 25. Na5 Bd4 (25... Nc5 26. b4 Nd3 27. Be3 Bb2 28. Bxa7 $6 (28. Nc4) (28. b5) 28... b5 {was not sure what is better.}) (25... Nf6 {missed this - shame.}) 26. b4 $2 (26. Kf1) 26... Nxf2 ( 26... Bxf2+) 27. Kf1 Nd3 (27... Ne4 {better, as the king can't win a tempo by attacking the knight.}) 28. Bd2 (28. Bh6) 28... Bb2 $6 (28... Nb2) 29. Ke2 Ne5 30. a4 Kf8 (30... Bd4) 31. Nxb7 Bd4 {to take the diagonal and control b6.} ( 31... Nc4) (31... Ke8) 32. Na5 Ke8 33. Nb3 Bg1 (33... Bb6 34. a5 {with Bg1, if Kf1, only then Bb6, and the king is further away.}) 34. b5 Nc4 35. Bc3 $2 Nb6 { he missed it.} 36. Kd3 Nxa4 {human decision.} (36... Nxd5) 37. Bd4 Bxd4 38. Kxd4 {the knight endgme is more lost than bishop endgame, but there are tricks, in severe time trouble for me.} Nb6 39. Na5 e5+ $1 40. dxe6 (40. Ke4 f5+ 41. Kd3 Nxd5) 40... fxe6 41. Nc6 Nc8 42. g4 h6 (42... g5 {was afraid to weaken f5.} ) (42... e5+ 43. Kd5 $2 Ne7+ 44. Kxd6 Nxc6 45. bxc6 Kd8 {lost for white.}) 43. h4 Kd7 44. g5 hxg5 45. hxg5 {better to have one pawn there.} a6 $2 {missed Nxa6.} 46. Nb8+ Kc7 47. Nxa6+ Kb6 48. Nb8 (48. Kc4) 48... Kxb5 49. Nd7 Kc6 50. Nf8 e5+ $1 51. Ke4 Ne7 {just in time. not easy to win. e6 is the key square to control.} 52. Ne6 Kd7 (52... Nf5) (52... Nd5 53. Nd8+ Kd7) 53. Nf8+ Kc6 54. Ne6 Kb5 55. Nc7+ Kc4 56. Ne6 Nf5 57. Nf8 Nh4 58. Ne6 Ng2 59. Nf8 Nf4 60. Nd7 {here i panicked from the sacrifice as I had 30 seconds. but I am just in time with my king and the knight protects the point from behind - a win.} Ne6 61. Nxe5+ dxe5 62. Kxe5 Nf8 (62... Nxg5 $4 63. Kf6) 63. Kf6 Kd5 64. Kg7 Ke6 0-1

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