[Event "BEL-ch Experts"]
[Site "Sint Niklaas"]
[Date "1981.07.05"]
[Round "4"]
[White "Pergericht, Daniel"]
[Black "Campos Ortega, Serge"]
[Result "1/2-1/2"]
[ECO "D18"]
[WhiteElo "2260"]
[BlackElo "2205"]
[PlyCount "69"]
[EventDate "1981.07.02"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. 0-0 0-0 9. Nh4 Bg4 10. f3 Bh5 11. g4 Nd5 12. Qe1 Be7 13. Ng2 Bg6 14. Qd1 Nd7 15. e4 N5b6 16. Ba2 e5 17. Be3 exd4 18. Bxd4 Nc5 19. h4 Ne6 20. Bf2 h6 21. f4 Nc5 22. f5 Bh7 23. g5 Nd3 24. g6 Nxf2 25. gxh7+ Kxh7 26. Kxf2 Bxh4+ 27. Kg1 Qe7 28. Qe2 Bf6 29. a5 Nd7 30. Ne1 Bxc3 31. bxc3 Qc5+ 32. Kg2 Qxa5 33. Nf3 Qxc3 34. Rh1 Kg8 35. Rab1 1/2-1/2

[Event "BEL-ch Experts"]
[Site "Sint Niklaas"]
[Date "1981.07.04"]
[Round "3"]
[White "Weemaes, Ronald"]
[Black "Campos Ortega, Serge"]
[Result "1-0"]
[ECO "B13"]
[BlackElo "2205"]
[PlyCount "113"]
[EventDate "1981.07.02"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Na5 8. Qc2 Rc8 9. Nd2 e6 10. Ngf3 Nc6 11. 0-0 Bd6 12. Bxd6 Qxd6 13. Rae1 0-0 14. Qb1 Ne7 15. Ne5 Bf5 16. Bxf5 Nxf5 17. g4 Nh4 18. f4 b5 19. a3 a5 20. Re3 b4 21. axb4 axb4 22. Qe1 bxc3 23. bxc3 Ng6 24. Qg3 Rfd8 25. f5 Nf8 26. g5 N6d7 27. Nxf7 Qxg3+ 28. hxg3 Kxf7 29. fxe6+ Kg6 30. exd7 Rxd7 31. Nf3 Rdc7 32. Kg2 Rxc3 33. Rxc3 Rxc3 34. Ne5+ Kxg5 35. Rxf8 h5 36. Nf3+ Kg6 37. Ne5+ Kg5 38. Rd8 Kf5 39. Rxd5 Ke4 40. Rd6 g5 41. Rc6 Ra3 42. Rf6 h4 43. gxh4 gxh4 44. Nf3 Ra8 45. Re6+ Kf4 46. Ng1 Rg8+ 47. Kf2 Rh8 48. Ne2+ Kg4 49. Re4+ Kf5 50. Re5+ Kg4 51. Re4+ Kf5 52. Re5+ Kg4 53. d5 h3 54. Kg1 h2+ 55. Kh1 Rh3 56. d6 Rd3 57. Re4+ 1-0

[Event "BEL-ch Experts"]
[Site "Sint Niklaas"]
[Date "1981.07.03"]
[Round "2"]
[White "Campos Ortega, Serge"]
[Black "De Jonghe, Bruno"]
[Result "1/2-1/2"]
[ECO "D93"]
[WhiteElo "2205"]
[PlyCount "82"]
[EventDate "1981.07.02"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d5 6. 0-0 Bf5 7. c4 c6 8. Nc3 dxc4 9. Bxc4 Nbd7 10. Ne5 Nb6 11. Bb3 Nfd5 12. Bg3 a5 13. Re1 Nxc3 14. bxc3 a4 15. e4 axb3 16. exf5 b2 17. Rb1 Bxe5 18. Bxe5 Nc4 19. fxg6 hxg6 20. Qd3 Qd5 21. h4 Nxe5 22. Rxe5 Qxa2 23. h5 Qxb1+ 24. Qxb1 Ra1 25. Re1 gxh5 26. Qxb2 Rxe1+ 27. Kh2 b5 28. Qd2 Re6 29. Qg5+ Kh7 30. d5 cxd5 31. Qxd5 Rb8 32. Qxh5+ Kg7 33. Qg5+ Kh7 34. Qf5+ Kg8 35. Qg5+ Rg6 36. Qxe7 Rbb6 37. Qe8+ Kg7 38. Qe5+ Kh7 39. Kg1 Rh6 40. Qf5+ Kg7 41. Qg5+ Kh7 1/2-1/2

[Event "BEL-ch Experts"]
[Site "Sint Niklaas"]
[Date "1981.07.02"]
[Round "1"]
[White "Schumacher, Helmut"]
[Black "Campos Ortega, Serge"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2290"]
[BlackElo "2205"]
[PlyCount "55"]
[EventDate "1981.07.02"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BEL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. e3 Bf5 5. c4 e6 6. Nc3 Bd6 7. Bxd6 Qxd6 8. Qb3 Nbd7 9. Qxb7 Rb8 10. Qxa7 Qb4 11. Qa3 Qxb2 12. Qxb2 Rxb2 13. cxd5 cxd5 14. Bb5 Rc2 15. Ne2 Ke7 16. a4 Rhc8 17. 0-0 Ne4 18. Ng3 Nd6 19. Nxf5+ exf5 20. Bxd7 Kxd7 21. a5 f6 22. a6 Ra8 23. Ra5 Ke6 24. Rfa1 Ne4 25. R5a2 Rxa2 26. Rxa2 Kd6 27. Ne1 Kc6 28. Nd3 1-0

