[Event "?"] [Site "?"] [Date "2020.11.22"] [Round "?"] [White "Certabo - engine"] [Black "Novag Emerald Classic"] [Result "0-1"] [ECO "B06"] [Annotator "Tactical Analysis 3.0 (5s)"] [PlyCount "160"] {[%evp 10,160,68,78,87,85,81,63,68,37,50,47,50,-17,44,-1,107,81,125,89,161,0, 155,34,47,61,72,0,11,-202,0,0,39,-126,-111,-243,-191,-294,-235,-229,-153,-378, 42,0,0,0,355,-146,0,0,-13,-477,0,-343,-321,-459,77,-721,-702,-725,0,-161,477, 471,462,0,0,-412,0,0,0,-417,-400,-451,-440,-483,-497,-509,-494,-473,-458,-478, -432,-465,-437,-411,-201,-183,-211,-417,-372,-408,-440,-425,-266,-287,-146, -112,-112,-289,-176,-152,-87,-157,-97,-377,-388,-447,-345,-409,-299,-272,-258, -525,-411,-594,-412,-624,-598,-598,-524,-525,-439,-465,-432,-543,-542,-542, -536,-525,-521,-901,-522,-518,-480,-697,-616,-719,-719,-1162,-1131,-5497,-5085, -29985,-29986,-29985,-29986,-29987,-29988,-29988,-29989,-29989,-29990]} 1. d4 g6 2. e4 Bg7 3. Nc3 d5 4. exd5 Nf6 5. Bc4 Nbd7 6. Nf3 Nb6 {B06: Modern Defence. } 7. Bb5+ Bd7 8. Bxd7+ Qxd7 {White is slightly better.} 9. Ne5 Qd8 10. O-O O-O {[#]} 11. Bg5 $146 ({Predecessor:} 11. Re1 Nfxd5 12. Ne4 Bxe5 13. dxe5 Qd7 14. Ng5 Qc6 15. e6 f6 16. Nf7 Rxf7 17. exf7+ Kxf7 {1/2-1/2 (31) Packroff, H-Pukropski,G GER email 2009}) 11... h6 12. Bxf6 Bxf6 13. Qf3 Qd6 14. Rae1 Qb4 15. Ng4 $2 (15. Qd3 $18) 15... Qxb2 $2 (15... Bg7 $11) 16. Nxh6+ (16. Nxf6+ exf6 17. Rb1 Qxc2 $11) 16... Kg7 17. Ng4 Bxd4 18. Nd1 (18. Ne2 $5 {[%CAl Re1b1] } Bf6 19. Nf4 $11) 18... Qxa2 19. Rxe7 $2 (19. Qf4 Qxd5 20. Qxc7 (20. Nde3 $2 Qd6 $17) 20... Bc5 $17) (19. Nde3 $11 {and White has nothing to worry.}) 19... Nxd5 $2 ({Better is} 19... Qxd5 $19 20. Qg3 Qd6 21. Rxc7 (21. Qh4 $2 Rh8 $19) 21... Qxg3 22. hxg3 a5) 20. Re4 $11 Ba1 {aiming for ...f5.} 21. Nde3 $2 (21. c4 $14 {stays ahead.} f5 22. Ree1) 21... f5 $17 22. Nxd5 fxe4 23. Qxe4 Rae8 $1 { [%CAl Re8e4]} 24. Ne7 Qa6 25. Rd1 $2 (25. Qe3 $17 {was the only chance.} Rh8 26. c3) 25... Bb2 $2 (25... Rf7 $19 26. Nf5+ {[%mdl 64] Discovered Attack} gxf5 27. Qxe8 fxg4) 26. Qe3 $14 {[%mdl 1024] White has compensation.} Rh8 { Threatens to win with ...Bf6.} 27. c3 Rh7 $2 {[%mdl 8192]} (27... Rd8 $1 $11 28. Qe5+ {[%mdl 64] Double Attack} Kf7 29. Qf4+ Kg7 30. Qe5+ Kf7 31. Qf4+ Kg7 32. Qe5+) 28. Qc5 $2 (28. Qd4+ $18 Kf8 29. Nd5) 28... Qe6 29. Qd4+ $1 Kf8 30. Qf4+ $2 {[%mdl 8192]} (30. Nxg6+ $1 $11 Qxg6 31. Nf6) 30... Kxe7 $2 (30... Rf7 $19 31. Qd4 Rfxe7) 31. Ne3 $2 {[%mdl 8192]} (31. h3 $11 Rh5 32. Rd3) 31... Qb3 $19 32. Rd3 {Strongly threatening Nd5+.} Rh5 $2 ({Black should play} 32... Qb5 $1 $19 {[%CAl Rb5d3]} 33. Rd5 Qc6) 33. f3 $2 {[%mdl 8192]} (33. g4 $16 Rc5 34. Qd4) 33... Qb6 34. g4 Rh7 $2 (34... Ra5 $19 35. Qh6 Qf6 36. Nd5+ Rxd5 $1 { [%mdl 576] Remove Defender} 37. Rxd5 Bxc3) 35. Kg2 $2 {[#]} (35. Kf1 $11 Rd8 36. Nc4) 35... c6 $4 {[%mdl 8192]} (35... Rd8 $1 $19 {[%CAl Rd8d3] and life is good for Black.} 36. Qg5+ Qf6 37. Qxf6+ Kxf6 38. Rxd8 a5) 36. Nc4 $18 Qc5 { ...Bc1! is the strong threat.} 37. Nxb2 $2 (37. Ne5 $18 Ke6 38. Nxg6) 37... Reh8 $11 38. Qe4+ $2 {[%mdl 8192]} (38. h4 $11 {and White is okay.} Rf7 39. Qe4+ {[%mdl 64] Double Attack} Kf8 40. Nc4 Rxh4 41. Qxg6 (41. Ne5 $2 {leads to mate.} Rh2+ {[%mdl 64] Deflection, Decoy} 42. Kxh2 Qf2+ 43. Kh3 Rh7#)) 38... Kf6 $2 ({Black should try} 38... Kf8 $19 39. Rd8+ Kg7 40. Rd7+ Kf6 41. Rxh7 Rxh7 42. Qf4+ Ke6 43. Qe4+ Kd7 44. Qxg6 Re7) 39. Qf4+ Ke7 40. Qe4+ $2 {[%mdl 8192]} (40. h4 $11 {and White stays safe.} Rf7 41. Qe4+ {[%mdl 64] Double Attack} Kf8 42. Nc4 Rxh4 43. Rd8+ (43. Ne5 $2 {gets mated.} Rh2+ {[%mdl 64] Deflection, Decoy} 44. Kxh2 Qf2+ 45. Kh3 Rh7#) 43... Kg7 44. Ne5 {[%mdl 64] Double Attack} Rh2+ {[%mdl 64] Decoy} 45. Kxh2 Qf2+ 46. Kh1 (46. Kh3 Qf1+ 47. Kh4 Qh1+ 48. Kg3 Qg1+ 49. Kh3 Qh1+ 50. Kg3 Qg1+ 51. Kh3 Qh1+ 52. Kg3 $11) 46... Qf1+ 47. Kh2 Qf2+ 48. Kh3 Qf1+ 49. Kh4 Qh1+ 50. Kg3 Qg1+ 51. Kh3 Qh1+ 52. Kg3 Qg1+ 53. Kh3 Qh1+ 54. Kg3) 40... Kf8 $19 41. Rd8+ Kg7 42. Rd7+ {[#]} Kf6 $1 43. Qf4+ Ke6 44. Rxh7 Rxh7 {[%mdl 4096] Endgame KQR-KQN} 45. Qe4+ Kf6 46. Qf4+ Ke6 47. Qe4+ Kf6 (47... Kd7 $142 {And now ...Qd6 would win.} 48. Qxg6 Re7) 48. Qf4+ Kg7 49. Qc7+ $2 (49. Nd3 {was called for.} Qe7 50. Qd4+ Kg8 51. Nf2) 49... Kg8 50. Qb8+ Qf8 51. Qxa7 Re7 {Hoping for ...Re2+.} 52. Nd3 Re2+ 53. Nf2 Qe7 54. Qd4 $2 (54. Qb8+ $17 Kh7 55. Qf4) 54... b5 55. Qd3 Kf7 {[#]} 56. h4 $1 { [%mdl 512]} Qe3 (56... Qxh4 57. Qxe2) 57. Qxe3 $4 {[%mdl 8192]} (57. Qd7+ $17 Qe7 58. Qd3) 57... Rxe3 $17 {KR-KN} 58. Ne4 Re2+ 59. Kg3 Ra2 60. Kf4 Rh2 61. Kg5 $2 (61. Ke5) 61... Rh3 $19 62. Nd2 (62. Nd6+ $142 Kg7 63. Kf4) 62... Kg7 63. h5 (63. Kf4 $142 Rxh4 64. Nb3) 63... gxh5 64. gxh5 Rg3+ 65. Kf4 Rg2 66. Ne4 Kh6 67. Nf6 Rc2 68. Ne4 Kxh5 69. Ke5 Kg6 70. Kd6 Rc1 71. Kc5 Rc2 72. Kd6 (72. Kd4 $142 Kf5 73. Nd6+ Ke6 74. Ne4) 72... Kf5 73. Kc5 Ke5 74. Kb6 Kf4 75. Kxc6 b4 $1 {[%CAl Rb4b3]} 76. Kd5 b3 {Black mates.} 77. Nc5 Rd2+ 78. Kc4 b2 79. Nd3+ {[#]} Rxd3 $1 {[%mdl 576] Promotion} 80. Kxd3 b1=Q+ {Accuracy: White = 35%, Black = 56%.} 0-1