[Event "Quito"]  [Date "1976"]  [Round "?"]  [White "Rubinetti, Jorge Alberto"]  [Black "Tarjan, James Edward"]  [Result "0-1"]  [ECO "D81"]  [Annotator "ATH"]  [PlyCount "82"]  [EventDate "1976.??.??"]  [EventType "tourn"]  [EventRounds "17"]  [EventCountry "ECU"]  [EventCategory "5"]  [SourceTitle "StarBase 4.56"]  [SourceDate "2002.11.12"]  [SourceVersion "1"]  [SourceVersionDate "2002.11.12"]  [SourceQuality "1"]   1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3 dxc4 5. Qxc4 Bg7 6. e4 O-O 7. Be2 Na6 8.  Bg5 c5 9. d5 Qa5 10. O-O-O $6 {Too ambitious.} (10. Rc1) 10... e6 $6 ({Tarjan  gives} 10... Bd7 11. e5 b5 $1 12. Nxb5 Ng4 $1 {where the computer prefers  White but says that} (12... Rfb8 13. Nc3 Rxb2 $3 14. Kxb2 Rb8+ 15. Kc2 (15. Kc1  Ng4) 15... Bf5+ 16. Kd2 Ne4+ {favors Black.})) 11. Qb5 $1 Qb6 12. Nf3 Qxb5 (  12... Bd7 {Tarjan's original intention.} 13. Qxb6 axb6 14. Ne5 $16) 13. Bxb5  exd5 14. exd5 ({Better is} 14. Bxf6 Bxf6 15. Nxd5 Bg7 16. Ne7+ Kh8 17. Nxc8 $16  ) 14... Bg4 15. Be2 h6 16. Be3 Rfd8 17. h3 Bf5 18. g4 $1 Be4 19. h4 $2 (19. g5  $1 hxg5 20. Nxe4 ({Tarjan gives} 20. Bxg5 $6 Bf5 21. Nh4 Bd7 22. Ng2 {with the  idea of Ne3 "maintaining the better position" but the machine evaluates the  position as equal.}) 20... Nxe4 21. Nxg5 $16) 19... Re8 20. Nxe4 Nxe4 21. Rhe1  (21. Bxa6 bxa6 22. g5 Rab8 23. gxh6 Rxb2 $2 24. hxg7 Reb8 25. Rde1 Rxa2 $2 26.  Bd2 Nxf2 {"with a wild game" according to Tarjan but 26. Nd2 just wins for  White.}) 21... c4 22. Nd2 Bxb2+ 23. Kxb2 (23. Kb1 {is probably better.}) 23...  c3+ 24. Ka1 (24. Ka3 $5) 24... cxd2 25. Bxd2 Nxd2 $1 $15 26. Rxd2 Nc5 27. d6 $6  (27. Rc2) 27... Rad8 28. f3 Re3 29. Rc1 b6 30. Rf1 Nb7 31. d7 Nc5 32. Bb5 Kf8  33. Rfd1 a6 34. Bc6 Re6 35. Rd6 Rxd6 36. Rxd6 Ke7 37. Rd2 Nxd7 38. Rb2 $138 Nc5  39. Re2+ Kf6 40. f4 $2 Rd4 41. g5+ {Tarjan sealed} Kg7 {but Rubinetti  resigned without resuming.} ({Tarjan gives this pretty mating line as one  possible continuation:} 41... Kg7 42. Rb2 b5 43. Rc2 Rd1+ 44. Kb2 Na4+ 45. Ka3  Rb1 46. Bd5 Nb6 47. Bb3 a5) 0-1