[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "2"]
[White "Cetina, Enrique"]
[Black "Leon, Hector"]
[Result "1-0"]
[ECO "B31"]
[PlyCount "91"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. d3 Bg7 5. Be3 Bxb2 6. Nbd2 Bxa1 7. Qxa1 Nf6 8. Bxc5 0-0 9. Bxc6 dxc6 10. e5 Nd5 11. Qd4 b6 12. Ba3 c5 13. Qh4 f6 14. exf6 exf6 15. 0-0 Ba6 16. Re1 Rf7 17. d4 cxd4 18. Nxd4 Nc3 19. N2f3 Bb7 20. Bb2 Rc8 21. Re3 Bxf3 22. Bxc3 Ba8 23. Rh3 Qd5 24. Qg4 Qxa2 25. Qxc8+ Rf8 26. Qe6+ Qxe6 27. Nxe6 Re8 28. Re3 Kf7 29. Nc7 Rxe3 30. fxe3 Be4 31. Nb5 a6 32. Na3 b5 33. Bb4 Ke6 34. c4 bxc4 35. Nxc4 Kd5 36. Nd2 f5 37. Kf2 g5 38. Nxe4 Kxe4 39. h3 h5 40. Be7 g4 41. hxg4 hxg4 42. g3 a5 43. Ba3 Kd3 44. Bc5 a4 45. Bd6 Kd2 46. Bb4+ 1-0

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "3"]
[White "Cetina, Enrique"]
[Black "Romero, Ricardo"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "2265"]
[PlyCount "46"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 Nf6 3. d4 g6 4. Nc3 Bg7 5. e5 dxe5 6. dxe5 Qxd1+ 7. Nxd1 Ng4 8. Ne3 Nxe5 9. Nxe5 Bxe5 10. Nc4 Bg7 11. Bf4 b5 12. Na5 Bxb2 13. Rb1 Bc3+ 14. Bd2 Bxd2+ 15. Kxd2 a6 16. f4 c5 17. c4 b4 18. Nb3 Bf5 19. Bd3 Bxd3 20. Kxd3 Nd7 21. Rhf1 a5 22. f5 Ne5+ 23. Kc2 Nxc4 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "1"]
[White "Pech, Jose"]
[Black "Cetina, Enrique"]
[Result "1-0"]
[ECO "C66"]
[PlyCount "65"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 d6 5. Re1 Bd7 6. Nc3 a6 7. Ba4 b5 8. Bb3 Be7 9. a4 Nd4 10. Nxd4 c5 11. Nf5 c4 12. Ba2 b4 13. Nd5 Nxd5 14. exd5 Bxf5 15. Bxc4 Rc8 16. d3 0-0 17. Bxa6 Rc5 18. Bc4 e4 19. b3 Bf6 20. Rb1 exd3 21. cxd3 Bc3 22. Bd2 Bxd2 23. Qxd2 h6 24. Qxb4 Qg5 25. Re3 Qg4 26. Qc3 Rfc8 27. Rg3 Rxc4 28. bxc4 Qxg3 29. hxg3 g5 30. Qf6 Bxd3 31. Rb4 Bg6 32. f4 gxf4 33. gxf4 1-0

