[Event "Mexican op"]
[Site "Zacatecas"]
[Date "1973.??.??"]
[Round "?"]
[White "Valero, Edgar"]
[Black "De Winter, Willy"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "118"]
[EventDate "1973.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 h6 7. Nd5 Nxd5 8. exd5 a6 9. dxc6 axb5 10. cxd7+ Bxd7 11. Qd5 Qc7 12. Bd2 Bc5 13. Bd3 0-0 14. 0-0 Be6 15. Qf3 b4 16. Qg3 f5 17. Bxh6 Bd6 18. f4 e4 19. Be2 Bc5+ 20. Kh1 Bd4 21. c3 bxc3 22. bxc3 Qxc3 23. Qxc3 Bxc3 24. Rac1 Rfc8 25. Bg5 Rxa2 26. Bh5 e3 27. Bh4 e2 28. Rg1 b5 29. Be1 b4 30. Bf3 Kh7 31. g4 Bxe1 32. Rcxe1 Rc4 33. gxf5 Bxf5 34. Rg5 Be4 35. Kg2 b3 36. Rb5 Rb2 37. Bxe4+ Rxe4 38. Kf3 Re7 39. Rb6 g6 40. Rb8 Kg7 41. Rb6 Kf7 42. Rb8 Kf6 43. Rf8+ Ke6 44. Rb8 Kd5 45. h4 Kd4 46. Rb5 Re3+ 47. Kf2 Rh3 48. Re5 Kd3 49. Rd5+ Ke4 50. Re5+ Kxf4 51. Rg5 Rh2+ 52. Kg1 Rxh4 53. Rxg6 Rg4+ 54. Rxg4+ Kxg4 55. Kf2 Kf4 56. Ra1 Ke4 57. Ra8 Rc2 58. Re8+ Kd3 59. Rd8+ Kc3 0-1

[Event "Mexican op"]
[Site "Terreon"]
[Date "1970.??.??"]
[Round "?"]
[White "Camarena, Joaquin"]
[Black "Valero, Edgar"]
[Result "1-0"]
[ECO "E67"]
[PlyCount "47"]
[EventDate "1970.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. g3 d6 6. Bg2 Nbd7 7. 0-0 e5 8. e3 Re8 9. b4 exd4 10. exd4 c5 11. Nb5 Nb6 12. dxc5 dxc5 13. Bf4 Nh5 14. Bc7 Qf6 15. Nd6 Re7 16. Bd8 Bg4 17. Bxe7 Qxe7 18. Re1 Qd7 19. bxc5 Bxa1 20. Qxa1 Bxf3 21. Bxf3 Ng7 22. Ne4 Qd3 23. Nf6+ Kf8 24. Be2 1-0

[Event "Mexican op"]
[Site "Terreon"]
[Date "1970.??.??"]
[Round "?"]
[White "Valero, Edgar"]
[Black "Campos Quintana, Mario Eduardo"]
[Result "0-1"]
[ECO "C87"]
[PlyCount "80"]
[EventDate "1970.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 d6 7. Bxc6+ bxc6 8. d4 Nd7 9. dxe5 dxe5 10. Nbd2 Bf6 11. Nb3 Qe7 12. Be3 0-0 13. Qd2 h6 14. Qc3 Qe6 15. Rad1 Rb8 16. Re2 Be7 17. a3 Re8 18. Nfd2 Nb6 19. Bxb6 cxb6 20. Nc4 Bf8 21. Red2 Qg6 22. f3 Qg5 23. Nd6 Re6 24. Nf5 Bb7 25. Qe3 Qxe3+ 26. Nxe3 a5 27. Rd7 a4 28. Nc1 Ba6 29. Nd3 Bxd3 30. R1xd3 b5 31. Rc7 b4 32. Rdd7 bxa3 33. bxa3 Bxa3 34. Rxf7 Bf8 35. Nf5 Ra8 36. Rfd7 g6 37. Ne3 a3 38. Ra7 Ree8 39. Rxa8 Rxa8 40. Ng4 Ra7 0-1

[Event "Mexican op"]
[Site "Terreon"]
[Date "1970.??.??"]
[Round "?"]
[White "Valero, Edgar"]
[Black "De Winter, Willy"]
[Result "1-0"]
[ECO "B49"]
[PlyCount "67"]
[EventDate "1970.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nc6 7. Be3 b5 8. 0-0 Bb7 9. Bf3 Be7 10. Nxc6 Bxc6 11. Bd4 f6 12. Re1 Nh6 13. Nd5 Bxd5 14. exd5 Rd8 15. dxe6 dxe6 16. Rxe6 0-0 17. Qe2 Bd6 18. Be3 Nf5 19. g3 Nxe3 20. Rxe3 Bc5 21. Re6 Qa7 22. a4 bxa4 23. Rxa6 Bxf2+ 24. Kf1 Qd4 25. R6xa4 Qxb2 26. Kxf2 Rfe8 27. Qc4+ Kf8 28. Ra8 Qb6+ 29. Kf1 Qb2 30. Qc6 g6 31. c3 Kg7 32. Qc7+ Kh8 33. R8a7 Qb5+ 34. Kg1 1-0

[Event "Mexican op"]
[Site "Terreon"]
[Date "1970.??.??"]
[Round "?"]
[White "Valero, Edgar"]
[Black "Ruenes, J."]
[Result "1-0"]
[ECO "C78"]
[PlyCount "101"]
[EventDate "1970.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. Nxe5 Nxe5 8. d4 Bxd4 9. Qxd4 d6 10. c3 0-0 11. Bg5 h6 12. Bh4 Qe7 13. Re1 Bg4 14. f4 Ng6 15. Bxf6 Qxf6 16. Qxf6 gxf6 17. f5 Ne5 18. Re3 Kh7 19. h3 Bh5 20. g4 Rg8 21. Nd2 Bxg4 22. hxg4 Rxg4+ 23. Kf2 Rag8 24. Rh1 Rf4+ 25. Ke1 Rg2 26. Bd1 c5 27. Be2 c4 28. Bf1 Rg5 29. Reh3 Ng4 30. Rf3 Rxf3 31. Nxf3 Rg8 32. Rg1 h5 33. Rh1 Kh6 34. Be2 Re8 35. Nd2 Kg5 36. Kf1 Re7 37. Kg2 d5 38. Bxg4 Kxg4 39. Nf3 dxe4 40. Nd4 e3 41. Re1 h4 42. Nc2 h3+ 43. Kh2 Kf3 44. Kxh3 Re8 45. Nd4+ Kf2 46. Re2+ Kf1 47. Kg3 a5 48. Kf3 b4 49. Nc2 Kg1 50. Nxe3 bxc3 51. Re1+ 1-0

