[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Ancheyta Tejas, Alejandro"]
[Black "Preve, Carlos"]
[Result "1-0"]
[ECO "C66"]
[PlyCount "45"]
[EventDate "1997.??.??"]
[EventType "team"]
[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. d4 Nc6 3. Nf3 d6 4. Bb5 Bd7 5. 0-0 Be7 6. Nc3 Nf6 7. Re1 0-0 8. Bxc6 Bxc6 9. dxe5 Ng4 10. Bf4 Bh4 11. Nxh4 Qxh4 12. Bg3 Qg5 13. exd6 Rad8 14. Qc1 Qc5 15. dxc7 Rd7 16. Qf4 Nf6 17. Rad1 Rc8 18. Rxd7 Bxd7 19. Rd1 h6 20. Nd5 Ne8 21. h3 g5 22. Qe5 Qxc2 23. Ne7+ 1-0

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Ortiz, Rafael"]
[Black "Preve, Carlos"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "82"]
[EventDate "1997.??.??"]
[EventType "team"]
[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. Bc4 Nf6 4. d3 Bc5 5. Bg5 h6 6. Bh4 0-0 7. Nbd2 d6 8. 0-0 Bg4 9. h3 Bh5 10. Nb3 Bb6 11. c3 Qd7 12. Bxf6 gxf6 13. g4 Bg6 14. Nh4 Bh7 15. Kh2 Kh8 16. f4 f5 17. gxf5 exf4 18. Rxf4 Be3 19. Rg4 Ne5 20. Rg2 b5 21. Qe2 Bf4+ 22. Kh1 bxc4 23. dxc4 Qc6 24. Nd4 Qxc4 25. Qxc4 Nxc4 26. b3 Ne3 27. Rf2 Bg5 28. Nhf3 Bf4 29. Nh4 Bg3 30. Rf3 Bxh4 31. Rxe3 Bg5 32. Rg3 Rfe8 33. Rg4 Rg8 34. Rag1 Be3 35. Rxg8+ Bxg8 36. Rg3 Bxd4 37. cxd4 c6 38. b4 f6 39. Kg2 d5 40. Kf3 dxe4+ 41. Kxe4 Bd5+ 0-1

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Pina, Raul"]
[Black "Preve, Carlos"]
[Result "0-1"]
[ECO "D06"]
[PlyCount "50"]
[EventDate "1997.??.??"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Nf3 e6 5. e3 Bb4 6. Be2 0-0 7. 0-0 Nc6 8. a3 Bd6 9. cxd5 exd5 10. Bd3 Bxd3 11. Qxd3 Re8 12. Re1 Ne4 13. Qc2 Nxc3 14. bxc3 Qf6 15. e4 h6 16. exd5 Rxe1+ 17. Nxe1 Re8 18. Bd2 Ne7 19. Nf3 Nxd5 20. c4 Nf4 21. Qa4 Re7 22. Qxa7 c5 23. dxc5 Qxa1+ 24. Ne1 Rxe1+ 25. Bxe1 Qxe1# 0-1

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Preve, Carlos"]
[Black "Hernandez, Roger"]
[Result "0-1"]
[ECO "C71"]
[PlyCount "92"]
[EventDate "1997.??.??"]
[EventType "team"]
[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 a6 4. Ba4 d6 5. h3 Be7 6. d4 b5 7. Bb3 Nxd4 8. Nxd4 exd4 9. Qxd4 Nf6 10. Nc3 c5 11. Qd3 c4 12. Bxc4 bxc4 13. Qxc4 0-0 14. Bg5 Be6 15. Qd3 Rb8 16. b3 a5 17. Rd1 Rb6 18. 0-0 h6 19. Bh4 Qc7 20. Rfe1 Rc6 21. Nd5 Nxd5 22. exd5 Rc3 23. Qe4 Bxh4 24. dxe6 Bxf2+ 25. Kxf2 Qc5+ 26. Qd4 Rxc2+ 27. Kg1 fxe6 28. Qxc5 dxc5 29. Rf1 Rxf1+ 30. Kxf1 Rxa2 31. Rc1 Kf7 32. Rxc5 Kf6 33. Rc6 Rd2 34. Rc7 g6 35. Rb7 Ke5 36. Ra7 Rd5 37. Ke2 Kd4 38. Re7 Re5+ 39. Kd1 Kc3 40. Rg7 Rg5 41. Rb7 Rxg2 42. Rb6 e5 43. Rb5 e4 44. Rxa5 e3 45. Re5 Kd3 46. b4 Rg1# 0-1

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Preve, Carlos"]
[Black "Leon, Hector"]
[Result "0-1"]
[ECO "B45"]
[PlyCount "76"]
[EventDate "1997.??.??"]
[EventType "team"]
[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 e6 3. d4 Nf6 4. Nc3 Nc6 5. Bg5 cxd4 6. Nxd4 Bc5 7. Nf3 Qb6 8. Qd2 Ng4 9. Nd1 0-0 10. h3 Nge5 11. Nxe5 Nxe5 12. Be2 d6 13. Rb1 a5 14. a4 Bd7 15. b3 Bc6 16. Qf4 f5 17. exf5 Rxf5 18. Qg3 Raf8 19. 0-0 Ng6 20. Bc4 d5 21. Bd3 R5f7 22. h4 Bxa4 23. Be3 Bxe3 24. Nxe3 Bb5 25. Bxb5 Qxb5 26. h5 Nf4 27. Kh2 Nxh5 28. Qh4 g6 29. Ng4 Rf4 30. Qe7 Qe2 31. Rbe1 Qxg4 32. Rxe6 Qh4+ 33. Qxh4 Rxh4+ 34. Kg1 Nf4 35. Re7 g5 36. g3 Rg4 37. Kh2 Nh5 38. Re5 Nxg3 0-1

[Event "Merida op2"]
[Site "Merida"]
[Date "1996.??.??"]
[Round "?"]
[White "Arguelles Ovando, Valente"]
[Black "Preve, Carlos"]
[Result "1-0"]
[ECO "C57"]
[PlyCount "39"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Qh4 7. Bxd5 Bg4 8. g3 Bxd1 9. gxh4 Bxc2 10. Nxh8 Rd8 11. Bxc6+ bxc6 12. Nc3 Bc5 13. b3 Ke7 14. Na4 Bd4 15. Bb2 Bxb2 16. Nxb2 Rxh8 17. d3 e4 18. Kd2 exd3 19. Nxd3 Bxd3 20. Kxd3 1-0

[Event "Merida op2"]
[Site "Merida"]
[Date "1996.??.??"]
[Round "?"]
[White "Casares Cabanas, Carlos"]
[Black "Preve, Carlos"]
[Result "1-0"]
[ECO "A01"]
[PlyCount "57"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. c4 Bc5 4. e3 Nf6 5. Nc3 d5 6. cxd5 Nxd5 7. Nf3 Bg4 8. Be2 Ndb4 9. d3 Bf5 10. a3 Nxd3+ 11. Bxd3 Bxd3 12. b4 Be7 13. Qb3 e4 14. Nd2 f5 15. Nd5 Bd6 16. Bxg7 Qg5 17. Nf6+ Kd8 18. Bxh8 Qxg2 19. Qg8+ Qxg8 20. Nxg8 Kd7 21. Rg1 Ne7 22. Bf6 Nxg8 23. Rg7+ Ke6 24. Bd4 Nf6 25. f3 Bxh2 26. f4 h5 27. Rg6 Rf8 28. Kf2 Kf7 29. Rxf6+ 1-0

[Event "Merida op1"]
[Site "Merida"]
[Date "1996.??.??"]
[Round "2"]
[White "Lizama, Jorge"]
[Black "Preve, Carlos"]
[Result "0-1"]
[ECO "C26"]
[PlyCount "32"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d3 e5 2. e4 Nf6 3. Nc3 Bb4 4. a3 Ba5 5. Nf3 Nc6 6. d4 exd4 7. Nxd4 Nxe4 8. Qf3 0-0 9. Qxe4 Re8 10. Bg5 Rxe4+ 11. Nde2 Qxg5 12. Rb1 Nd4 13. b4 Qe5 14. f3 Nxc2+ 15. Kf2 Bb6+ 16. Nd4 Bxd4# 0-1

