[Event "Huacho op 2nd"]
[Site "Huacho"]
[Date "2004.09.15"]
[Round "1"]
[White "Chang G, Roger"]
[Black "Cruz Estrada, Filemon"]
[Result "0-1"]
[ECO "D85"]
[BlackElo "2364"]
[PlyCount "46"]
[EventDate "2004.09.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PER"]
[SourceTitle "CBM 102 Extra"]
[Source "ChessBase"]
[SourceDate "2004.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. f4 0-0 8. Nf3 c5 9. Qa4 Nc6 10. Be3 Bg4 11. Rd1 cxd4 12. cxd4 Bxf3 13. gxf3 e6 14. d5 exd5 15. Rxd5 Qh4+ 16. Kd2 Rad8 17. Bg2 Rxd5+ 18. exd5 Ne7 19. d6 Nd5 20. Qc4 Nxe3 21. Kxe3 Re8+ 22. Kd3 Qf2 23. Bf1 Re3# 0-1

[Event "GUA-ch Mayor op fin I"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Blanco Gramajo, Cesar Augusto"]
[Black "Chang G, Roger"]
[Result "1-0"]
[ECO "E24"]
[PlyCount "63"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. e3 c5 7. f3 Nc6 8. Bd3 dxc4 9. Bxc4 0-0 10. Ne2 cxd4 11. cxd4 b6 12. e4 Bb7 13. 0-0 Qc7 14. Bb2 Rfd8 15. Rc1 Qe7 16. Qe1 Rac8 17. Qg3 Ne8 18. Rfd1 Na5 19. Bb5 Bc6 20. Ba6 Bb7 21. Bd3 Bc6 22. Nf4 Qd6 23. Qh4 Qf8 24. d5 exd5 25. exd5 h6 26. dxc6 g5 27. Qg4 Ng7 28. Nh5 f5 29. Qh3 Nxh5 30. Qxh5 Rxc6 31. Rxc6 Nxc6 32. Qg6+ 1-0

[Event "Guatemala Primer Cuatrimestre3"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Chang G, Roger"]
[Black "Perez A, Juan C"]
[Result "1/2-1/2"]
[ECO "A13"]
[PlyCount "43"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. b3 g6 4. Bb2 Bg7 5. g3 0-0 6. Bg2 c5 7. d4 cxd4 8. Bxd4 Nc6 9. Bb2 d5 10. cxd5 Nxd5 11. Bxg7 Kxg7 12. 0-0 Qf6 13. Nbd2 Nc3 14. Qe1 Nb4 15. Ne4 Nxe4 16. Qxb4 Nc3 17. e3 Nd5 18. Qd4 Bd7 19. Qxf6+ Nxf6 20. Rfe1 Bc6 21. Ne5 Bxg2 22. Kxg2 1/2-1/2

[Event "Guatemala Primer Cuatrimestre3"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Chang G, Roger"]
[Black "Rodriguez M, Luis Rob"]
[Result "0-1"]
[ECO "D02"]
[PlyCount "94"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. c3 Be7 6. Nbd2 d5 7. Bd3 0-0 8. 0-0 b6 9. Re1 Bb7 10. e4 dxe4 11. Nxe4 cxd4 12. cxd4 Nxd4 13. Nfg5 Nxe4 14. Nxe4 f5 15. Ng3 Qd5 16. f3 Rad8 17. Be2 e5 18. Bxe5 Nxe2+ 19. Qxe2 Bc5+ 20. Kf1 Rde8 21. b3 Bd4 22. f4 Bxa1 23. Rxa1 g5 24. Rd1 Qe6 25. Qh5 Qg6 26. Rd6 Ba6+ 27. Kf2 Qxh5 28. Nxh5 Rd8 29. Nf6+ Kf7 30. Nxh7 Rxd6 31. Bxd6 Rc8 32. Nxg5+ Kg6 33. a3 Rc2+ 34. Kg3 Bb7 35. Nf3 Rc3 36. Kh4 Bxf3 37. gxf3 Rxf3 38. Bb8 a5 39. Bc7 Rxb3 40. Bd8 Rxa3 41. Bxb6 a4 42. Bd4 Ra2 43. Kg3 Rc2 44. Kf3 a3 45. Ke3 a2 46. Kd3 Rxh2 47. Ba1 Rh1 0-1

[Event "Guatemala Primer Cuatrimestre3"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Figueroa Unizar, Oscar R"]
[Black "Chang G, Roger"]
[Result "1/2-1/2"]
[ECO "C10"]
[PlyCount "89"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 a6 3. d4 d5 4. Be3 Ne7 5. Nf3 Ng6 6. Bd3 Bd6 7. Qd2 c6 8. e5 Bb4 9. a3 Bxc3 10. Qxc3 Nd7 11. Qb4 c5 12. Qd2 cxd4 13. Bxd4 Qc7 14. Bxg6 hxg6 15. 0-0 Nc5 16. Qf4 b6 17. Rac1 Bb7 18. c4 Nd3 19. cxd5 Nxf4 20. Rxc7 Ne2+ 21. Kh1 Nxd4 22. Rxb7 Nxf3 23. gxf3 exd5 24. Rxb6 0-0 25. Rd6 Rfb8 26. b4 a5 27. Rb1 axb4 28. Rxb4 Rxb4 29. axb4 Rb8 30. Rxd5 Rxb4 31. Kg2 Kf8 32. Rd8+ Ke7 33. Rg8 Rh4 34. Kg3 Rh5 35. f4 Rh7 36. Kg4 Rh5 37. Ra8 Ke6 38. Re8+ Kd7 39. Ra8 Ke7 40. Ra7+ Ke6 41. Ra6+ Ke7 42. Rd6 Rh7 43. Rd3 Ke6 44. Ra3 Rh8 45. h4 1/2-1/2

[Event "Guatemala Primer Cuatrimestre3"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Ibarra S, Cesar A"]
[Black "Chang G, Roger"]
[Result "1/2-1/2"]
[ECO "E16"]
[PlyCount "65"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 c5 6. dxc5 Bxc5 7. Bg5 0-0 8. Nc3 Bb4 9. 0-0 Bxc3 10. bxc3 d5 11. Ne5 h6 12. Bxf6 Qxf6 13. Qd4 Rd8 14. Rfd1 Na6 15. Qe3 Nc5 16. cxd5 Bxd5 17. c4 Bxg2 18. Kxg2 Rxd1 19. Rxd1 Rd8 20. Ra1 Nd7 21. Rd1 Nxe5 22. Rxd8+ Qxd8 23. Qxe5 Qa8+ 24. f3 Qc6 25. Qd4 Kf8 26. Kf2 f6 27. a4 Ke7 28. a5 Qc5 29. Qxc5+ bxc5 30. Ke3 Kd7 31. Kd3 a6 32. Ke4 g5 33. g4 1/2-1/2

[Event "Guatemala Primer Cuatrimestre3"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Mansilla R, Hector R"]
[Black "Chang G, Roger"]
[Result "0-1"]
[ECO "D52"]
[PlyCount "112"]
[EventDate "1992.??.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. c4 Nbd7 5. e3 Bd6 6. Bd3 0-0 7. Nc3 c6 8. cxd5 cxd5 9. Qc2 h6 10. Bh4 Qa5 11. Bg3 Bb4 12. 0-0 Bxc3 13. Qxc3 Qxc3 14. bxc3 a6 15. a4 Re8 16. Ne5 Nxe5 17. dxe5 Nd7 18. c4 Nc5 19. Be2 dxc4 20. Bxc4 Bd7 21. a5 Bc6 22. f4 Red8 23. Rfd1 Ne4 24. Be1 Rac8 25. Bb4 Rxd1+ 26. Rxd1 Ba4 27. Rd4 Bc2 28. g3 g5 29. Kg2 g4 30. Be2 h5 31. h3 f5 32. exf6 Nxf6 33. hxg4 hxg4 34. Be7 Nd5 35. Bxg4 Nxe3+ 36. Kf3 Nxg4 37. Kxg4 Bf5+ 38. Kg5 Kf7 39. Rd8 Rc3 40. Bd6 Rxg3+ 41. Kh6 Rd3 42. Kg5 Rd5 43. Rd7+ Ke8 44. Re7+ Kd8 45. Bb4 Rb5 46. Bd6 Rxa5 47. Kf6 Rd5 48. Bc7+ Kc8 49. Bb6 Rd6 50. Re8+ Kd7 51. Rd8+ Kc6 52. Rxd6+ Kxd6 53. Ba5 Kd5 54. Bc3 Ke4 55. Kg5 Kd3 56. Ba5 b5 0-1

[Event "GUA-ch Mayor op fin I"]
[Site "Guatemala City"]
[Date "1992.??.??"]
[Round "?"]
[White "Zelaya S, Gustavo E"]
[Black "Chang G, Roger"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "89"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Nf6 6. Bd3 Be7 7. h4 Bc6 8. Nxf6+ Bxf6 9. Be3 Nd7 10. Qe2 Nb6 11. 0-0-0 Bxf3 12. Qxf3 c6 13. Be4 Qd6 14. Bf4 Qe7 15. g4 Qb4 16. Bxc6+ Kf8 17. Bxb7 Rd8 18. c3 Qa5 19. Kb1 Be7 20. Bc7 Rd7 21. Qc6 Qd5 22. Qxd5 Nxd5 23. Bxd5 Rxc7 24. Bb3 Bd6 25. Rde1 Ke7 26. Re4 Rb8 27. Rhe1 Kf8 28. f4 g6 29. c4 Bb4 30. R1e2 a5 31. c5 Ra7 32. f5 exf5 33. gxf5 a4 34. Bc4 Kg7 35. fxg6 hxg6 36. Kc2 Ba5 37. Re7 Rab7 38. Rxb7 Rxb7 39. c6 Rb8 40. Re7 Rc8 41. Rxf7+ Kh6 42. d5 Bd8 43. Rf8 Kg7 44. Rxd8 Rxd8 45. c7 1-0

[Event "Guatemala I Semestre-B"]
[Site "Guatemala City"]
[Date "1991.??.??"]
[Round "?"]
[White "Saquil Bran, Byron Roder"]
[Black "Chang G, Roger"]
[Result "1-0"]
[ECO "A60"]
[PlyCount "73"]
[EventDate "1991.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GUA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 Bf5 7. Bf4 Be7 8. e3 Nbd7 9. Bd3 Bg4 10. 0-0 0-0 11. e4 Re8 12. h3 Bh5 13. g4 Nxg4 14. hxg4 Bxg4 15. Be2 Nf6 16. Nd2 Bh3 17. Re1 a6 18. Bf3 Qd7 19. Nc4 Qc7 20. e5 dxe5 21. Bxe5 Qd8 22. d6 Bf8 23. Re3 Rb8 24. d7 Rxe5 25. Rxe5 Bxd7 26. Bg2 Ng4 27. Rd5 Qh4 28. Qf3 Bc6 29. Qg3 Qxg3 30. fxg3 Bxd5 31. Nxd5 b5 32. Nce3 Ne5 33. Nc7 Rb6 34. Rd1 g6 35. Rd8 Kg7 36. Ned5 Rd6 37. Ne8+ 1-0

