[Event "MT- Riva/SF 2"] [Site "ICCF"] [Date "2023.??.??"] [Round "?.3"] [White "Hurn, Robert"] [Black "Vujnovic, Ratko"] [Result "0-1"] [ECO "A65"] [WhiteElo "2116"] [BlackElo "2170"] [Annotator "SF 16 Tactical Analysis"] [PlyCount "142"] [EventDate "2023.??.??"] [WhiteTeam "Wales B"] [BlackTeam "Croatia"] [BlackTeamCountry "CRO"] {[%evp 19,142,-10,-11,-38,-5,-37,-44,-41,-42,-41,-42,-52,-64,-64,-51,-63,-31, -31,-33,-42,-42,-35,-46,-47,-28,-53,-51,-47,-45,-66,-52,-77,-63,-79,-79,-121, -123,-121,-115,-111,-96,-129,-128,-143,-160,-128,-112,-162,-125,-149,-135,-126, -126,-139,-129,-186,-200,-211,-208,-214,-190,-212,-184,-202,-197,-191,-182, -178,-182,-167,-182,-280,-280,-280,-275,-279,-278,-272,-275,-262,-278,-270, -243,-252,-260,-576,-576,-576,-576,-566,-560,-536,-529,-489,-467,-647,-644, -652,-652,-749,-746,-731,-731,-709,-704,-3081,-3405,-29979,-29980,-29980, -29981,-29981,-3382,-29980,-29981,-29981,-29982,-29984,-29985,-29985,-29986, -29986,-29987,-29988,-29989]} 1. d4 Nf6 2. c4 g6 3. f3 e6 4. e4 c5 5. d5 Bg7 6. Nc3 d6 7. Bg5 exd5 8. cxd5 O-O 9. Nge2 h6 {[%CAl Bh7h6,Bh6h5,Bh5h4,Bh4h3][%mdl 32]} 10. Be3 Nbd7 11. Ng3 {A65: Modern Benoni: 6 e4.} a6 (11... h5 $15) 12. a4 (12. Be2 $11 {was preferrable.}) 12... h5 $1 $15 13. Be2 {Black is slightly better.} h4 14. Nf1 Rb8 $1 15. Bg5 h3 16. g3 (16. gxh3 $6 c4 $14) 16... Ne5 { [%CAl Ob7b5]} 17. Nd2 {[#]} Qd7 $146 (17... Re8 $142) ({Predecessor:} 17... Re8 18. O-O c4 19. b3 Qb6+ 20. Kh1 Nh7 21. Bf4 cxb3 22. Nxb3 Ng4 23. fxg4 Bxc3 { 0-1 (68) Novikov,S (2387)-Morozov,D (2468) ICCF email 2018}) 18. a5 b5 { ...Nh7 is the strong threat.} 19. axb6 $1 Rxb6 20. Qc2 Qb7 21. Ra2 Rb4 22. O-O (22. Bxa6 Qxa6 23. Rxa6 Bxa6 $17) 22... c4 {Against b3} 23. Be3 Bd7 24. Nd1 Bb5 25. Nc3 Rc8 26. Rb1 Nfd7 $1 {[%CAl Bf6d7,Bd7c5,Bc5b3,Bb3d4][%mdl 32]} 27. Nxb5 (27. Bf1 $142) 27... Rxb5 $17 28. Qd1 (28. Bxc4 $2 Nxc4 29. Nxc4 Ne5 $19) 28... Rb4 $1 29. Qf1 Rb8 $1 {[%CAl Oc4c3] White must now prevent ...c3!} 30. Rc1 (30. Nxc4 Nxc4 31. Bxc4 a5 $14) (30. Qxh3 $2 c3 31. Nf1 (31. Bxa6 $2 Qc7 $19) 31... Qc7 $19) (30. Bxc4 $2 Rxc4 $1 31. Nxc4 Qb3 32. Nxe5 Qxe3+ 33. Kh1 (33. Qf2 $2 Qb3 $19) 33... Nxe5 $19) ({White should play} 30. Kh1 c3 31. Bxa6 $1) 30... Nc5 $1 31. Bxc4 (31. Nxc4 Nxc4 32. Bxc4 (32. Rxc4 Rxb2 33. Rxb2 Qxb2 $11) 32... Bxb2 $14) 31... Nxc4 32. Nxc4 Nb3 $1 33. Rc2 (33. Nxd6 $6 Nxc1 34. Nxb7 Nxa2 $11) (33. Rc3 $17 Qc7 34. Ne5) 33... Bd4 $1 $19 {[%CAl Ob4c4]} 34. Bxd4 (34. Qxh3 $2 Rxc4 $1 35. Rxc4 Bxe3+ 36. Kh1 Nd2 $19) 34... Nxd4 35. Rf2 (35. Nxd6 $2 Qd7 36. Rc3 Qxd6 $19) 35... Qc7 {[%mdl 1024] Black has strong compensation.} 36. Ne3 Qc5 $1 37. Kh1 (37. Rxa6 $2 Rxb2 38. Ra1 (38. Rxb2 $2 Rxb2 39. Kh1 Qc3 $19) 38... Nc2 $19) (37. Qxh3 $17 Qc1+ 38. Nf1) 37... Kg7 $1 38. Ng4 (38. Rxa6 Rxb2 39. Ra1 Rxf2 40. Qxf2 Qc3 $19) (38. Qxh3 Qc1+ 39. Nf1 Rxb2 $17) 38... f5 39. exf5 gxf5 40. Qxh3 {aiming for Qh6+.} Rh8 {Against Qh6+} ({And not} 40... fxg4 41. Qxg4+ Kf6 42. Qh4+ (42. Rxa6 $2 Nf5 $19) 42... Kg6 43. Qg4+ (43. Rxa6 $2 Nf5 $19) 43... Kf6 44. Qh4+ (44. Rxa6 $2 Nf5 $19) 44... Kg6 45. Qg4+ (45. Rxa6 $2 Nf5 $19) 45... Kf6 $11) 41. Qg2 fxg4 42. fxg4 Re8 $36 {[%mdl 2048] Prevents Qe4. Strongly threatening ...Re1+. Keeping White busy.} 43. Ra1 { Against Re1+} Rb7 $1 {[%CAl Bb4b7,Bb7e7,Be7g7][%mdl 32]} 44. Raf1 Rbe7 45. b4 ( 45. Qh3 {was necessary.} Qxd5+ 46. Qg2) 45... Qxb4 46. Qh3 Ne2 47. Rf5 { [%CAl Rf5g5]} Kg8 48. Qh4 {Threatening mate with Rg5+.} ({Avoid the trap} 48. Qh5 $2 Qe4+ 49. R1f3 Nxg3+ $1 {[%mdl 512]} 50. hxg3 Rh7 $19) 48... Qe4+ 49. R1f3 Rg7 50. Qf6 Qxg4 51. Kg2 Qd4 $1 {Threatens to win with ...Qg1+.} 52. Rf1 { [#] Prevents Qg1+.} (52. Qh6 {is more resistant.} Qg1+ 53. Kh3) 52... Nxg3 $1 { [%mdl 512]} 53. Qxd4 Nxf5+ {[%mdl 64] Discovered Attack} 54. Qxg7+ Nxg7 { [%mdl 4096] Endgame KRN-KR} 55. Ra1 Ra8 56. Kf3 a5 {[%CAl Ba6a5,Ba5a4,Ba4a3] [%mdl 32]} 57. Ke2 a4 58. Kd3 a3 59. Ra2 Nh5 60. Kc2 Nf4 61. Kb3 Kf7 62. h4 Nd3 {( -> ...Nc1+)} 63. Kc3 Nc1 64. Ra1 {[#]} a2 $1 65. Kb2 {[#]} Nd3+ (65... Rc8 $142 $1 66. h5 {[#]} (66. Ka3 Kg6) 66... Kg7 $1 67. Ka3 Kh6 68. Rxa2 Nxa2 69. Ka4 Rc5 70. Kb3 Kxh5 $1 71. Kb2 Kg4 $1 72. Kb3 Nc1+ 73. Ka4 Kf4 74. Kb4 Ke3 75. Ka4 Kd4 76. Kb4 Rxd5 77. Ka3 Kc3 78. Ka4 Nd3 79. Ka3 Ra5#) 66. Kb3 {[#]} Nc1+ $1 {[%mdl 512] Black mates.} 67. Kc2 (67. Kb2 Nd3+) 67... Rc8+ 68. Kd1 {[#]} Kg6 $1 69. Ke1 Kh5 70. Kf2 Kxh4 71. Ke3 Kg4 {Weighted Error Value: White=0.20 (precise) /Black=0.02 (flawless)} 0-1