[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Chang, J."]
[Black "Gonzalez, Ivan"]
[Result "1-0"]
[ECO "C92"]
[BlackElo "2275"]
[PlyCount "41"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[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 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Bb7 10. d4 exd4 11. cxd4 Re8 12. Nc3 h6 13. Bf4 Bf8 14. Bc2 g6 15. Qd2 Kh7 16. Rad1 Bg7 17. e5 dxe5 18. Bxe5 Nxe5 19. Nxe5 Kg8 20. Bb3 Rf8 21. Nxg6 1-0

[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Chang, J."]
[Black "Ibarra Padron, Joel"]
[Result "1/2-1/2"]
[ECO "B72"]
[BlackElo "2115"]
[PlyCount "72"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. h3 0-0 8. Bb3 Nc6 9. Be3 Bd7 10. 0-0 Rc8 11. Re1 Na5 12. Qd3 a6 13. Nd5 Nxb3 14. axb3 e6 15. Nc3 Ne8 16. Rad1 Kh8 17. Nf3 Bc6 18. Bc5 Bb5 19. Qe3 Qc7 20. Bd4 Bc6 21. Bxg7+ Nxg7 22. Qh6 f6 23. Re3 Rcd8 24. Red3 Rd7 25. Qd2 Rfd8 26. Qf4 Ne8 27. g4 e5 28. Qh6 Rf7 29. Kg2 Qd7 30. Rh1 Kg8 31. Rhd1 Rc8 32. Nh4 Rc7 33. Rg3 Rg7 34. Kh2 Qf7 35. Rc1 d5 36. exd5 Bxd5 1/2-1/2

[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Chang, J."]
[Black "Perez, Juan C"]
[Result "0-1"]
[ECO "B29"]
[BlackElo "2210"]
[PlyCount "106"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nf3 c5 4. d4 cxd4 5. Qxd4 e6 6. Bd2 Nc6 7. Qg4 Qc7 8. Qe4 Qb6 9. b3 Bc5 10. Qh4 Nd4 11. Nxd4 Bxd4 12. c3 Bxe5 13. Bd3 Qc7 14. 0-0 Bf4 15. c4 Bxd2 16. cxd5 Qf4 17. Qh5 g6 18. Qe2 Bb4 19. Qb2 0-0 20. Na3 Qd2 21. Qxd2 Bxd2 22. Nc4 Bb4 23. a3 Be7 24. d6 Bf6 25. Rac1 b5 26. Na5 Bb2 27. Rc7 Bxa3 28. Bxb5 Bxd6 29. Rcc1 Bb4 30. Nc4 Rb8 31. Ba4 f6 32. Ne3 Ba5 33. Nc4 Bc7 34. Rc2 d5 35. Na3 Be5 36. Nb5 Ba6 37. Rc5 Rb7 38. Rfc1 Rff7 39. g3 g5 40. Kg2 Rfe7 41. Kf3 Rb6 42. Kg4 Reb7 43. Nc7 Be2+ 44. f3 h6 45. Bd7 Kf7 46. Bxe6+ Rxe6 47. Nxe6 Kxe6 48. Re1 h5+ 49. Kxh5 Bxf3+ 50. Kh6 Be4 51. Rc6+ Bd6 52. Kh5 Kf5 53. Kh6 Kg4 0-1

[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Chang, J."]
[Black "Rodriguez Cespedes, Amador"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "2495"]
[PlyCount "50"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d4 Bxd4 5. c3 Bb6 6. 0-0 Nf6 7. Bg5 d6 8. b4 a6 9. Nbd2 0-0 10. h3 Qe7 11. Nh4 Be6 12. Qf3 Nb8 13. Nf5 Bxf5 14. Qxf5 Nbd7 15. Rfd1 Rfe8 16. Nf1 Qf8 17. Rd3 a5 18. Rg3 Kh8 19. Ne3 axb4 20. cxb4 c6 21. Ng4 Nxe4 22. Bd3 Nxg5 23. Qxg5 e4 24. Bc2 f5 25. Nh2 Qf6 0-1

[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Leonard Torres, Pedro"]
[Black "Chang, J."]
[Result "1-0"]
[ECO "D61"]
[PlyCount "56"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Be7 6. e3 0-0 7. Qc2 Nbd7 8. 0-0-0 Qa5 9. Kb1 dxc4 10. Bxc4 b5 11. Bd3 b4 12. Ne4 b3 13. axb3 Nd5 14. Bxe7 Nxe7 15. Nd6 Nf6 16. Ne5 Qc7 17. Ne4 Nfd5 18. Nc3 h6 19. Nxd5 exd5 20. Rc1 Bb7 21. b4 Rac8 22. Bh7+ Kh8 23. Bf5 Rb8 24. Bd3 Rbc8 25. Qc5 f6 26. Nf3 Qd7 27. g4 Ba8 28. Nh4 Rb8 1-0

[Event "Havana-ch sf region"]
[Site "Havana"]
[Date "1998.??.??"]
[Round "?"]
[White "Perez Mitjans, Orelvis"]
[Black "Chang, J."]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2240"]
[PlyCount "111"]
[EventDate "1998.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CUB"]
[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 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 h6 10. Ne2 g5 11. h3 c5 12. Rd1+ Ke8 13. b3 Be6 14. g4 Ne7 15. c4 Rd8 16. Bb2 Ng6 17. Rxd8+ Kxd8 18. Rd1+ Kc8 19. Ng3 Be7 20. Nf5 Bd8 21. Bc1 Bd7 22. Bb2 Bc6 23. Ne1 h5 24. e6 f6 25. e7 Nxe7 26. Bxf6 Rh7 27. Rxd8+ Kxd8 28. Bxg5 hxg4 29. Nxe7 Be4 30. Nd5+ Kc8 31. Nf6 Rh8 32. Nxe4 Re8 33. h4 Rxe4 34. Kf1 Kd7 35. Nd3 b6 36. h5 Ke6 37. h6 Kf5 38. Be3 Kg6 39. Kg2 a6 40. Kg3 c6 41. a4 Kh7 42. a5 bxa5 43. Nxc5 Re8 44. Kxg4 Rb8 45. Kh5 a4 46. bxa4 Re8 47. Nd7 Rd8 48. Nc5 a5 49. Ne6 Rd1 50. Ng5+ Kh8 51. Bf4 Rh1+ 52. Kg6 c5 53. Nf7+ Kg8 54. h7+ Rxh7 55. Nh6+ Rxh6+ 56. Bxh6 1-0

