[Event "Groningen op2"]
[Site "Groningen"]
[Date "1990.??.??"]
[Round "?"]
[White "Krivonosov, Oleg"]
[Black "De Diego, Alejandro"]
[Result "1/2-1/2"]
[ECO "E92"]
[PlyCount "118"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 022"]
[Source "ChessBase"]
[SourceDate "1991.06.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.06.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 cxd5 13. Bxd5 h6 14. Be3 Nd7 15. Nd2 Nf6 16. Bb3 Be6 17. Ke2 Ng4 18. Rhc1 Nxe3 19. Kxe3 h5 20. Rc7 Rad8 21. Ke2 Rd7 22. Rac1 Red8 23. Rxd7 Bg4+ 24. f3 Bxd7 25. Rc7 Bb5+ 26. Bc4 Bh6 27. Nb3 Bxc4+ 28. Rxc4 Rd7 29. Rc2 b6 30. a4 f6 31. a5 bxa5 32. Nxa5 Bf8 33. Rc6 Kf7 34. Nc4 Bb4 35. g3 g5 36. f4 gxf4 37. gxf4 exf4 38. e5 Rd4 39. Rxf6+ Ke7 40. b3 a5 41. Ra6 f3+ 42. Kxf3 Rd3+ 43. Ke4 Rxb3 44. Ne3 Rb1 45. Kf5 Rh1 46. Nd5+ Kf8 47. Ra8+ Kg7 48. Ra7+ Kh6 49. Ra6+ Kg7 50. e6 Rxh2 51. Ra7+ Kh6 52. Nxb4 Rf2+ 53. Ke5 axb4 54. Rb7 Kg5 55. Rxb4 Re2+ 56. Kd6 h4 57. e7 h3 58. Rb2 Re1 59. Kd7 Kg4 1/2-1/2

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "2"]
[White "Boersma, Paul"]
[Black "De Diego, Alejandro"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2390"]
[PlyCount "71"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Bd2 Nd7 10. Rc1 f5 11. Ng5 Nf6 12. exf5 gxf5 13. f4 e4 14. Be3 h6 15. Nh3 c5 16. dxc6 bxc6 17. b4 Kh8 18. Qd2 Be6 19. Rfd1 d5 20. Na4 dxc4 21. Qe1 Ned5 22. Nc5 Bf7 23. Bd4 Ne8 24. Bxg7+ Kxg7 25. Bxc4 Kh7 26. Kh1 Rg8 27. b5 cxb5 28. Bxd5 Bxd5 29. Ne6 Qe7 30. Neg5+ hxg5 31. Rxd5 gxf4 32. Rxf5 Nd6 33. Rxf4 Rg6 34. Rh4+ Kg7 35. Nf4 Rg5 36. Rc7 1-0

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "1"]
[White "De Diego, Alejandro"]
[Black "Zagema, Wieb"]
[Result "0-1"]
[ECO "C61"]
[PlyCount "101"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. d3 Bc5 6. 0-0 c6 7. Ba4 Ne7 8. f4 d5 9. f5 Bd7 10. Kh1 Qa5 11. c3 dxc3 12. Nxc3 0-0-0 13. Bd2 Qa6 14. Qc2 b6 15. a3 Kb8 16. Bf4+ Ka8 17. Ne2 Be8 18. d4 Bd6 19. e5 Bc7 20. Bg5 c5 21. Bb3 Bb5 22. Bxe7 Bxe2 23. Bxd8 Rxd8 24. Rfe1 Bd3 25. Qf2 Qb5 26. Bd1 cxd4 27. Qxd4 Bxf5 28. Rc1 Qd7 29. Ba4 Qe7 30. Qc3 Kb8 31. Qd4 Be4 32. Rcd1 Qg5 33. Rxe4 dxe4 34. Qxe4 Rd2 35. Rxd2 Qxd2 36. Qb1 Bxe5 37. b4 Qf4 38. Qg1 h5 39. Bd1 h4 40. h3 g5 41. Bf3 f5 42. Bc6 g4 43. b5 Qg3 44. Bd7 gxh3 45. Bxf5 Bd4 46. Qh2 hxg2+ 47. Qxg2 Qe1+ 48. Kh2 Qe5+ 49. Kh1 Qxf5 50. Qg8+ Qc8 51. Qg2 0-1

