[Event "Carlos Torre op Kukulkan 11th"]
[Site "Merida"]
[Date "1998.??.??"]
[Round "7"]
[White "Ballesteros, Sandoval"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "28"]
[EventDate "1998.12.??"]
[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 Nf6 3. Nxe5 Bd6 4. d4 Bxe5 5. dxe5 Nxe4 6. Bc4 0-0 7. 0-0 Nc6 8. Re1 Nc5 9. b3 b6 10. Bb2 Ne6 11. Nc3 Bb7 12. Qg4 Na5 13. Bd3 Nc6 14. Re3 Ne7 1-0

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "4"]
[White "Alonso Velazquez, Luis"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "A40"]
[PlyCount "113"]
[EventDate "1997.??.??"]
[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 e6 2. d4 g6 3. c4 Bg7 4. Nc3 a6 5. Be2 Nc6 6. Nf3 h6 7. Be3 Nge7 8. Qd2 b6 9. d5 exd5 10. cxd5 Ne5 11. Nxe5 Bxe5 12. Bxh6 d6 13. Be3 Rxh2 14. Rxh2 Bxh2 15. g3 Kd7 16. 0-0-0 Qh8 17. Rh1 Bb7 18. Bd4 Qh3 19. Bf3 Rh8 20. Bxh8 Qxh8 21. Qf4 f5 22. Qh4 Qxh4 23. gxh4 Bf4+ 24. Kc2 c6 25. exf5 Nxf5 26. dxc6+ Bxc6 27. Bxc6+ Kxc6 28. Ne2 Be5 29. b3 a5 30. Kd3 b5 31. Rg1 Nxh4 32. Rg4 Nf5 33. Rxg6 Kc5 34. Nc3 Kb4 35. Nb1 Kc5 36. Rg5 Ne7 37. f4 Nc6 38. a3 Nd4 39. fxe5 Nf3 40. Rg8 Nxe5+ 41. Ke4 Nc6 42. Nc3 b4 43. Rg5+ Ne5 44. axb4+ Kxb4 45. Rg3 Kxb3 46. Nb5+ Ka4 47. Nxd6 Nc6 48. Kd5 Nb4+ 49. Kc4 Nc2 50. Kc3 Nb4 51. Rg4 Ka3 52. Nb5+ Ka4 53. Nd6 Ka3 54. Nc4+ Ka4 55. Nxa5 Kb5 56. Rxb4+ Kxa5 57. Rb2 1-0

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Ancheyta Tejas, Victor"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "78"]
[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 Qf6 4. Nc3 Nge7 5. Nb5 Kd8 6. d4 a6 7. dxe5 Nxe5 8. Nxe5 Qxe5 9. Nc3 f5 10. 0-0 fxe4 11. Re1 b5 12. Rxe4 Qf5 13. Be6 Qg6 14. Bxd7 Bxd7 15. Rd4 Qc6 16. a4 Nf5 17. axb5 Qe6 18. Re4 Qd6 19. Qf3 Nd4 20. Rxd4 Qxd4 21. Qxa8+ Bc8 22. Bg5+ Be7 23. Rd1 Qxd1+ 24. Nxd1 Bxg5 25. Qd5+ Bd7 26. Qxg5+ Kc8 27. bxa6 Re8 28. Ne3 Bc6 29. b4 g6 30. b5 Be4 31. f3 Ba8 32. Qc5 Re6 33. Qf8+ Kd7 34. Qxa8 Rxe3 35. Qd5+ Kc8 36. a7 Re1+ 37. Kf2 Ra1 38. a8Q+ Rxa8 39. Qxa8+ Kd7 1-0

[Event "Merida op2"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "4"]
[White "Canto, Rodolfo"]
[Black "Castillo, Marcos"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "60"]
[EventDate "1997.??.??"]
[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 e6 2. Nf3 g6 3. Bc4 Bg7 4. 0-0 b6 5. d3 Bb7 6. Nc3 c6 7. Re1 Nf6 8. Bg5 h6 9. Bxf6 Bxf6 10. e5 Bg7 11. d4 0-0 12. Ne4 a5 13. Nd6 Ba6 14. b3 b5 15. Bd3 Qc7 16. c3 b4 17. c4 c5 18. Be4 Nc6 19. Bxc6 Qxc6 20. d5 exd5 21. cxd5 Qc7 22. Nc4 Bxc4 23. bxc4 d6 24. exd6 Qxd6 25. Rb1 a4 26. Re2 a3 27. Qb3 f5 28. Re6 Qf4 29. Rxg6 Rf6 30. g3 Rxg6 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "1"]
[White "Cardenas, Bernardo"]
[Black "Castillo, Marcos"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "97"]
[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 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. c3 0-0 7. d4 exd4 8. cxd4 Bb6 9. d5 Ne7 10. Nc3 d6 11. h3 a5 12. Bg5 Ng6 13. Re1 Bc5 14. Qd2 Bb4 15. a3 Bxc3 16. Qxc3 h6 17. Bxf6 Qxf6 18. Qxf6 gxf6 19. Rac1 c5 20. dxc6 bxc6 21. Rxc6 Bd7 22. Rc4 Bxa4 23. Rxa4 Nf4 24. Rd1 Rfd8 25. Ra1 Nd3 26. b3 d5 27. exd5 Rxd5 28. Rd4 Rxd4 29. Nxd4 Nc5 30. Rc1 Nd3 31. Rc3 Ne5 32. f4 Nd7 33. Nc6 Kg7 34. Rd3 Nc5 35. Rc3 Ne4 36. Rc4 Nd2 37. Ra4 Nxb3 38. Kf2 f5 39. Ke3 Ra6 40. Nd4 Nc5 41. Rc4 Ne6 42. Nxf5+ Kf6 43. Nd4 Nd8 44. Rc8 Ne6 45. Rc6 Ra8 46. f5 Kg5 47. fxe6 fxe6 48. Nxe6+ Kf5 49. Nd4+ 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "3"]
[White "Castillo, Marcos"]
[Black "Buenfil, Ivan"]
[Result "1-0"]
[ECO "C34"]
[PlyCount "59"]
[EventDate "1997.??.??"]
[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. f4 d6 3. Nf3 Nc6 4. Bc4 exf4 5. d4 Qe7 6. Nc3 Na5 7. Bd3 f5 8. 0-0 Qf7 9. Re1 Be7 10. Bxf4 fxe4 11. Rxe4 Bf5 12. Ng5 Qg6 13. Re3 Bxd3 14. cxd3 0-0-0 15. Qd2 Bxg5 16. Rg3 Bxf4 17. Qxf4 Qf6 18. Qg4+ Kb8 19. Rf1 Qe7 20. Nd5 Qd7 21. Qxd7 Nf6 22. Qxg7 Nxd5 23. Rf5 c6 24. a3 Nb3 25. Rf7 Nxd4 26. Rxb7+ Kc8 27. Rxa7 Ne2+ 28. Kf1 Nxg3+ 29. hxg3 Rdf8+ 30. Kg1 1-0

[Event "Merida op2"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "1"]
[White "Castillo, Marcos"]
[Black "Cardena, Manuel"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "111"]
[EventDate "1997.??.??"]
[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 c5 2. Bc4 e6 3. Nf3 a6 4. a4 d5 5. exd5 exd5 6. Be2 Nc6 7. h3 Bd6 8. 0-0 Nf6 9. d4 c4 10. Bg5 h6 11. Bh4 g5 12. Bg3 Bxg3 13. fxg3 g4 14. Nh4 gxh3 15. Re1 Be6 16. Nc3 Qd6 17. Bf3 0-0-0 18. Ne2 hxg2 19. Nf4 Rdg8 20. Nhg6 Rxg6 21. Nxg6 fxg6 22. Bxg2 Bf5 23. c3 Qxg3 24. Qf3 Qxf3 25. Bxf3 Be4 26. Re3 h5 27. Rf1 Ne7 28. Bg2 Nf5 29. Bh3 Kc7 30. Bxf5 gxf5 31. Rg3 Rg8 32. Rxg8 Nxg8 33. Kf2 Nf6 34. Rg1 Ng4+ 35. Kg3 Bc2 36. Rh1 Bxa4 37. Rxh5 Bd7 38. Rh7 b5 39. Kf3 a5 40. Rh1 b4 41. cxb4 axb4 42. Rc1 Nf6 43. Ra1 Ne4 44. Ke3 c3 45. bxc3 bxc3 46. Ra5 Kd6 47. Ra1 Kc6 48. Rb1 Bc8 49. Kf4 Nd6 50. Ke3 Nb5 51. Rc1 Kb6 52. Rc2 Ka5 53. Kd3 Kb4 54. Rc1 Ka3 55. Rxc3+ Nxc3 56. Kxc3 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "2"]
[White "Castillo, Marcos"]
[Black "Casares Cabanas, Carlos"]
[Result "1/2-1/2"]
[ECO "A01"]
[PlyCount "68"]
[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. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. c4 Bc5 5. Nc3 0-0 6. d3 a5 7. a3 d6 8. Nf3 b6 9. h3 d5 10. cxd5 Nxd5 11. Qc2 Bd6 12. Be2 Nf6 13. Rd1 Bb7 14. 0-0 Ne7 15. Rfe1 Ng6 16. Nb5 Be7 17. Nxc7 Rc8 18. Rc1 Nd5 19. Bxe5 Nxe5 20. Nxe5 Rxc7 21. Qd2 Rxc1 22. Qxc1 Bg5 23. f4 Bh4 24. Rf1 b5 25. e4 Qb6+ 26. Kh1 Ne3 27. Rf3 f6 28. Nd7 Rc8 29. Qxc8+ Bxc8 30. Nxb6 Nc2 31. Nxc8 Nxa3 32. d4 Nb1 33. d5 Nd2 34. Rd3 Nxe4 1/2-1/2

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "5"]
[White "Castillo, Marcos"]
[Black "Celso, Luis"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "31"]
[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. Bc4 Bc5 3. Nf3 Nc6 4. 0-0 Nf6 5. Ng5 0-0 6. Nc3 h6 7. Nf3 d6 8. d3 Nh7 9. Nd5 Kh8 10. Bd2 f5 11. Qc1 Ng5 12. Nxg5 Qxg5 13. Bxg5 hxg5 14. Qxg5 Nd4 15. Nxc7 Rb8 16. Qh5# 1-0

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "1"]
[White "Castillo, Marcos"]
[Black "Manzur, Carlos"]
[Result "0-1"]
[ECO "B20"]
[PlyCount "62"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 Nc6 3. Bc4 a6 4. a4 e6 5. Nc3 Nf6 6. h3 d5 7. exd5 exd5 8. Be2 d4 9. Na2 Bd6 10. d3 0-0 11. Bg5 h6 12. Bxf6 Qxf6 13. Qd2 Re8 14. 0-0-0 Qe6 15. Bf1 Qxa2 16. c3 Qa1+ 17. Kc2 Qxa4+ 18. Kb1 Be6 19. c4 Nb4 20. b3 Qxb3+ 21. Qb2 Qxd1+ 22. Qc1 Qa4 23. Qb2 Bf4 24. Nd2 Qd1+ 25. Qc1 Qxd2 26. Qxd2 Bxd2 27. Be2 Bxc4 28. Rd1 Rxe2 29. dxc4 Bc3 30. f4 Rb2+ 31. Ka1 Rb3# 0-1

[Event "Merida op2"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "3"]
[White "Castillo, Marcos"]
[Black "Manzur, Carlos"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "50"]
[EventDate "1997.??.??"]
[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. Nc3 Bc5 4. Bc4 Nf6 5. 0-0 d6 6. h3 Be6 7. Bxe6 fxe6 8. d3 a6 9. Ne2 0-0 10. c3 Nh5 11. Ng5 Qe7 12. Ng3 Nxg3 13. Be3 Bxe3 14. Nf3 Nxf1 15. Qxf1 Rxf3 16. gxf3 Bf4 17. Kh1 Rf8 18. d4 exd4 19. cxd4 Nxd4 20. Qg2 e5 21. Rd1 Rf6 22. Qg4 Rg6 23. Qc8+ Kf7 24. Qxb7 Qd7 25. Qd5+ Ke7 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "5"]
[White "Castillo, Marcos"]
[Black "Oliva, Jorge"]
[Result "1-0"]
[ECO "B40"]
[PlyCount "87"]
[EventDate "1997.??.??"]
[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 c5 2. Nf3 e6 3. Nc3 Nc6 4. a3 a6 5. b3 d6 6. Bb2 Nf6 7. Bd3 Be7 8. 0-0 e5 9. h3 Be6 10. Ne2 0-0 11. Ng3 Qb6 12. c4 Na5 13. Bc2 Nxc4 14. Bc3 Na5 15. Nf5 Bxf5 16. exf5 Nc6 17. Qb1 Qd8 18. b4 cxb4 19. axb4 Qd7 20. b5 axb5 21. Rxa8 Rxa8 22. Qxb5 Nb8 23. Qxd7 Nbxd7 24. Rb1 Rb8 25. d4 Rc8 26. Rb3 Nd5 27. Rxb7 Rxc3 28. Ba4 N7b6 29. Bb3 Rxb3 30. Rb8+ Bf8 31. dxe5 dxe5 32. Nxe5 f6 33. Nd7 Nxd7 34. Rxb3 Ne7 35. g4 Ne5 36. Kg2 N7c6 37. f4 Nd4 38. Rb7 Nef3 39. Rd7 h6 40. Kg3 Kh7 41. h4 Bb4 42. g5 Be1+ 43. Kg4 Bxh4 44. g6+ 1-0

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Castillo, Marcos"]
[Black "Pacheco, Carlos"]
[Result "0-1"]
[ECO "B07"]
[PlyCount "60"]
[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 d6 2. Bc4 Nf6 3. Nc3 g6 4. Nf3 Nbd7 5. Ng5 Nb6 6. Nxf7 Qd7 7. Nxh8 Nxc4 8. 0-0 Qe6 9. d3 Na5 10. Nb5 Kd8 11. Re1 c5 12. Bd2 Nc6 13. Bc3 a6 14. Na3 Bg7 15. Nxg6 hxg6 16. Nc4 Qf7 17. Nb6 Rb8 18. e5 Nxe5 19. Bxe5 dxe5 20. Rxe5 Ng4 21. Re2 Bxb2 22. Rb1 Bd4 23. Qf1 Kc7 24. Nd5+ Qxd5 25. Rxe7+ Bd7 26. Rbe1 Qd6 27. g3 Kb6 28. Rb1+ Ka7 29. Re2 Bc6 30. h3 Qxg3+ 0-1

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Castillo, Marcos"]
[Black "Pacheco, Froylan"]
[Result "1-0"]
[ECO "B20"]
[PlyCount "48"]
[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. Bc4 e5 3. Bxf7+ Kxf7 4. Qh5+ g6 5. Qxe5 Qf6 6. Qd5+ Qe6 7. Qd3 Nf6 8. Nf3 Bg7 9. Ng5+ Ke7 10. Nxe6 dxe6 11. Nc3 Rd8 12. Qb5 Nfd7 13. 0-0 Kf8 14. Qe2 Kg8 15. Nb5 Na6 16. Nd6 Ne5 17. Nxc8 Raxc8 18. d3 Nc7 19. Be3 Nb5 20. b4 b6 21. bxc5 bxc5 22. c4 Nxd3 23. Rad1 Ne5 24. Rxd8+ Rxd8 1-0

[Event "Merida op2"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "2"]
[White "Flores, Enrique"]
[Black "Castillo, Marcos"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "78"]
[EventDate "1997.??.??"]
[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 e6 2. Nf3 g6 3. Bc4 b6 4. Nc3 c6 5. d4 Bg7 6. e5 Ne7 7. Bf4 0-0 8. Qd3 a5 9. h4 a4 10. h5 b5 11. hxg6 Nxg6 12. Bd5 exd5 13. Ng5 h6 14. Nf3 Nxf4 15. Qf1 Ba6 16. Ne2 b4 17. Ng5 Qxg5 18. g3 Bxe2 19. Qg1 Bf3 20. gxf4 Bxh1 21. fxg5 Be4 22. gxh6 Bg6 23. hxg7 Kxg7 24. 0-0-0 Rh8 25. Qg5 Rh5 26. Qf6+ Kh7 27. f4 Rf5 28. Qh4+ Rh5 29. Qg4 Na6 30. Rf1 Rf5 31. Rh1+ Kg7 32. b3 axb3 33. cxb3 c5 34. dxc5 Nxc5 35. Qf3 Rxa2 36. Rf1 Ra1+ 37. Kd2 Rxf1 38. Qxf1 Nxb3+ 39. Kc2 Rxf4+ 0-1

[Event "Merida op"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "2"]
[White "Hernandez, Jorge"]
[Black "Castillo, Marcos"]
[Result "0-1"]
[ECO "B00"]
[PlyCount "106"]
[EventDate "1997.??.??"]
[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 e6 2. d4 b6 3. Nc3 Bb7 4. Bd3 g6 5. Be3 Bg7 6. Nf3 Nf6 7. 0-0 0-0 8. Re1 d5 9. Bg5 h6 10. Bxf6 Bxf6 11. e5 Bg7 12. Qd2 Nc6 13. a3 Ne7 14. Re2 Nf5 15. Bxf5 gxf5 16. Qf4 a5 17. Nh4 Qg5 18. g3 Qxf4 19. gxf4 c5 20. Rd2 Ba6 21. Rb1 Kh7 22. dxc5 bxc5 23. b4 Rab8 24. bxc5 Rxb1+ 25. Nxb1 Rg8 26. Kh1 Bf8 27. c6 Be7 28. Nf3 Bf1 29. Ne1 h5 30. f3 Bc5 31. Ng2 h4 32. h3 Rg3 33. Nxh4 Rg1+ 34. Kh2 Ba6 35. Nc3 Rg8 36. Ng2 Bxa3 37. Na4 Rc8 38. c3 Rxc6 39. Ne3 Bc1 40. Rd1 Bxe3 41. Kg3 Bb5 42. Re1 Bd2 43. Rh1 Bxa4 44. h4 Bxc3 45. h5 Rc4 46. Kh4 Rxf4+ 47. Kg5 Rxf3 48. Kf6 Be8 49. Ke7 Bb5 50. Kxf7 Bxe5 51. Kxe6 Bd4 52. Kxd5 Bg7 53. Rb1 Be8 0-1

[Event "Merida Universiada"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "?"]
[White "Leon, Hector"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "B06"]
[PlyCount "83"]
[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 e6 2. e4 g6 3. Nf3 Bg7 4. e5 b6 5. Bg5 f6 6. Bh4 Bb7 7. Be2 Qe7 8. Nc3 a5 9. 0-0 Nc6 10. a4 Nh6 11. Nb5 Rc8 12. Bc4 Nf5 13. d5 Nxh4 14. Nxh4 Nxe5 15. d6 Qf7 16. Nxc7+ Kf8 17. Ba2 g5 18. Nf5 Nc6 19. f4 Qg6 20. Nd4 gxf4 21. Ndxe6+ dxe6 22. Nxe6+ Ke8 23. d7+ Ke7 24. Nxf4 Qg5 25. dxc8Q Rxc8 26. Re1+ Ne5 27. Nd5+ Kf8 28. Re2 Nf3+ 29. Kh1 Rd8 30. gxf3 Rxd5 31. Bxd5 Bxd5 32. Rg2 Qf5 33. Ra3 h5 34. Rd3 Bc6 35. Rd8+ Kf7 36. Qd3 Qxd3 37. cxd3 Bxf3 38. Rd7+ Kg8 39. Rdxg7+ Kh8 40. Kg1 h4 41. Rg8+ Kh7 42. R2g7+ 1-0

[Event "Merida op2"]
[Site "Merida"]
[Date "1997.??.??"]
[Round "5"]
[White "Saldivar, Lorenzo"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "C00"]
[PlyCount "61"]
[EventDate "1997.??.??"]
[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 e6 2. d3 Bc5 3. Be3 Bxe3 4. fxe3 Nf6 5. Nf3 0-0 6. Be2 c6 7. Nc3 b5 8. a3 a5 9. b4 a4 10. Qd2 d5 11. e5 Ng4 12. d4 f6 13. h3 Nh6 14. exf6 Qxf6 15. e4 dxe4 16. Nxe4 Qe7 17. Qd3 Bb7 18. c3 Na6 19. Neg5 Nf5 20. g4 c5 21. gxf5 exf5 22. 0-0-0 Bxf3 23. Nxf3 Rad8 24. Qxb5 Qxe2 25. Qxe2 cxd4 26. Nxd4 Ra8 27. Rhg1 g6 28. Nc6 Rfc8 29. Qe6+ Kg7 30. Rd7+ Kh6 31. Qe3+ 1-0

[Event "Merida op1"]
[Site "Merida"]
[Date "1996.??.??"]
[Round "1"]
[White "Cardena, Manuel"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "83"]
[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 e6 2. d4 Nc6 3. Nf3 b6 4. Nc3 Bb4 5. Bd2 Bxc3 6. Bxc3 d5 7. e5 Nge7 8. Bd3 a5 9. Qe2 Nb4 10. Bxb4 axb4 11. 0-0 Bb7 12. h4 g6 13. c3 bxc3 14. bxc3 0-0 15. h5 Nf5 16. Bxf5 exf5 17. e6 Ba6 18. exf7+ Rxf7 19. Qe6 Bxf1 20. hxg6 Qf8 21. gxf7+ Qxf7 22. Qxf7+ Kxf7 23. Ne5+ Ke6 24. Kxf1 c5 25. Rb1 Ra6 26. Nf3 h6 27. Rb2 cxd4 28. Nxd4+ Ke5 29. Re2+ Kf4 30. g3+ Kg4 31. Kg2 Ra3 32. f3+ Kg5 33. Nb3 h5 34. Kh3 b5 35. f4+ Kf6 36. Kh4 Ra8 37. Nd4 Ra6 38. Nxb5 Kg6 39. Nc7 Rc6 40. Re6+ Rxe6 41. Nxe6 Kf6 42. Nc7 1-0

[Event "Merida op1"]
[Site "Merida"]
[Date "1996.??.??"]
[Round "2"]
[White "Castillo, Marcos"]
[Black "Vazquez, Jorge"]
[Result "0-1"]
[ECO "C55"]
[PlyCount "126"]
[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. Bc4 Nf6 3. Nf3 Nc6 4. c3 b6 5. d4 d6 6. b4 g6 7. d5 Ne7 8. Bg5 Bg7 9. h3 0-0 10. 0-0 Nxe4 11. Qd3 f6 12. Be3 f5 13. Nh2 Bb7 14. f3 Nf6 15. b5 Nh5 16. f4 e4 17. Qd2 Qd7 18. Qf2 Rf7 19. Rd1 Raf8 20. Nf1 Qc8 21. a4 a6 22. Ra3 a5 23. Nbd2 Bxd5 24. Be2 c6 25. c4 cxb5 26. axb5 Be6 27. Bxb6 d5 28. Bxa5 Qb8 29. cxd5 Bxd5 30. Ne3 Nxf4 31. Nxd5 Nexd5 32. Bc4 e3 33. Qf3 Qa7 34. b6 Qb8 35. Nb1 Bd4 36. Rxd4 e2 37. Kf2 Re8 38. Ke1 Nxh3 39. Qxh3 Qe5 40. Rxd5 Qb2 41. Qd3 Qc1+ 42. Kf2 e1Q+ 43. Bxe1 Qxe1+ 44. Kf3 f4 45. Rg5 Re3+ 46. Qxe3 fxe3+ 47. Kg4 h5+ 48. Kh3 Qh1+ 49. Kg3 Qe1+ 50. Kh3 Qh1+ 51. Kg3 Qe1+ 52. Kh3 Qxb1 53. Bxf7+ Kxf7 54. Ra7+ Kf6 55. Rd5 e2 56. Rd6+ Kg5 57. Ra5+ Kh6 58. Re5 e1Q 59. Rxe1 Qxe1 60. b7 Qe3+ 61. Kh2 Qe5+ 62. Kh3 Qxd6 63. Kh4 Qh2# 0-1

[Event "Yucatan-ch op"]
[Site "Merida"]
[Date "1994.??.??"]
[Round "?"]
[White "Castillo, Marcos"]
[Black "Jimenez, Juan C"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "62"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "MEX"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 e6 3. Nf3 Nc6 4. Nc3 a6 5. d3 Nf6 6. a3 b5 7. Bb3 Bb7 8. Bg5 Be7 9. Bh4 Qc7 10. h3 h6 11. Bg3 d6 12. Ne2 Qd7 13. c3 g5 14. Ba2 Nh5 15. b4 Bf6 16. bxc5 dxc5 17. Bb1 Nxg3 18. fxg3 Rd8 19. a4 Ne5 20. Nxe5 Bxe5 21. axb5 axb5 22. Bc2 Qc7 23. Qb1 Bxg3+ 24. Kd1 Be5 25. Ra2 Bc6 26. Ra3 Qb7 27. Qa2 Bxe4 28. Ra7 Qd5 29. Rf1 Rd6 30. Rfxf7 Rd7 31. Qxd5 Bxd5 1-0

[Event "Merida Revolucion op"]
[Site "Merida"]
[Date "1993.??.??"]
[Round "3"]
[White "Alzina, Jose"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2005"]
[BlackElo "1650"]
[PlyCount "105"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. g3 e6 4. Bg2 Nf6 5. cxd5 cxd5 6. Nf3 a5 7. 0-0 Qb6 8. Nc3 Bb4 9. Qb3 a4 10. Nxa4 Qb5 11. Nc3 Qa5 12. Bd2 Nc6 13. a3 Be7 14. Nb5 Qd8 15. Bf4 0-0 16. Bc7 Qd7 17. e3 Ne4 18. Qc2 Bd6 19. Nxd6 Nxd6 20. Bxd6 Qxd6 21. Qc5 Qxc5 22. dxc5 f6 23. Nd4 Na5 24. b4 Nc4 25. Nc2 Bd7 26. e4 Nd2 27. Rfd1 Nxe4 28. Bxe4 Bc6 29. Bd3 e5 30. b5 Be8 31. Be2 Bf7 32. Nb4 d4 33. Bf3 Rfb8 34. Bd5 Ra4 35. Bxf7+ Kxf7 36. Kf1 Rba8 37. c6 bxc6 38. bxc6 Ke6 39. c7 Rc8 40. Rdc1 Kd7 41. Nd5 Ra6 42. Rab1 Kd6 43. Rb8 Rxc7 44. Nxc7 Rxa3 45. Nb5+ Ke6 46. Nxa3 g5 47. Rh8 Kf5 48. Rxh7 Ke4 49. Rf7 Kf5 50. Rc6 Ke4 51. Rfxf6 Kd5 52. f3 g4 53. Rfd6# 1-0

[Event "Merida Revolucion op"]
[Site "Merida"]
[Date "1993.??.??"]
[Round "4"]
[White "Castillo, Marcos"]
[Black "Jimenez, Juan C"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1650"]
[PlyCount "100"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 d6 3. f4 e6 4. Nf3 Nc6 5. c3 Nf6 6. d3 Be7 7. h3 a6 8. a4 d5 9. exd5 exd5 10. Bb3 0-0 11. Nbd2 Re8 12. 0-0 Bd6 13. Nh4 Qe7 14. Ndf3 Qc7 15. Ng5 h6 16. Ngf3 Bxf4 17. Bxf4 Qxf4 18. g3 Qxg3+ 19. Kh1 Qxh3+ 20. Nh2 Qxh4 21. Qf3 Bg4 22. Qf4 Qg5 23. Qxg5 hxg5 24. Rg1 Ne5 25. d4 cxd4 26. cxd4 Bf3+ 27. Nxf3 Nxf3 28. Rg3 Re1+ 29. Rxe1 Nxe1 30. Rxg5 Nf3 31. Rg2 Nxd4 32. Ba2 Re8 33. Rd2 Re1+ 34. Kg2 Re2+ 35. Rxe2 Nxe2 36. Kf3 Nc1 37. Bb1 b5 38. axb5 axb5 39. Ke3 g5 40. Bf5 Kg7 41. Kd4 Ne2+ 42. Kc5 g4 43. Bd3 g3 44. Bxe2 g2 45. Bxb5 g1Q+ 46. Kb4 Qd4+ 47. Kb3 Ne4 48. Ka2 f5 49. Bf1 Nd2 50. Bb5 Qa7+ 0-1

[Event "Merida Revolucion op"]
[Site "Merida"]
[Date "1993.??.??"]
[Round "5"]
[White "Chable, Roberto"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "1625"]
[BlackElo "1650"]
[PlyCount "69"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 f6 3. e3 Nh6 4. Bd3 Nc6 5. Nbd2 Bf5 6. e4 Bg6 7. c3 d5 8. 0-0 dxe4 9. Nxe4 e5 10. Bc2 exd4 11. Nxd4 Qd5 12. Re1 0-0-0 13. Be3 Bxe4 14. Bxe4 Qxe4 15. Bxh6 Qxe1+ 16. Qxe1 gxh6 17. Qe6+ Kb8 18. Qxf6 Be7 19. Qxh6 Nxd4 20. cxd4 Rxd4 21. Qg7 Rhd8 22. Re1 Bb4 23. Qxd4 Bd6 24. Qe4 a5 25. Qxh7 Bb4 26. Rc1 c6 27. Qg7 Bd6 28. Rd1 Bxh2+ 29. Kxh2 Rxd1 30. f4 Rd2 31. f5 a4 32. f6 a3 33. bxa3 Rxa2 34. f7 Rf2 35. Qg3+ 1-0

[Event "Merida Revolucion op"]
[Site "Merida"]
[Date "1993.??.??"]
[Round "1"]
[White "Ordaz Flores, Alejandro"]
[Black "Castillo, Marcos"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2025"]
[BlackElo "1650"]
[PlyCount "81"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "MEX"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. Bc4 Nh6 4. 0-0 Bg4 5. d3 Qf6 6. Nc3 c6 7. h3 Bxf3 8. Qxf3 Qxf3 9. gxf3 Nd7 10. f4 a5 11. Kh1 b5 12. Nxb5 cxb5 13. Bxb5 Rb8 14. a4 Be7 15. Rg1 g6 16. fxe5 dxe5 17. Bxh6 Kd8 18. Bxd7 Kxd7 19. Bg7 Rhg8 20. Bxe5 Bd6 21. Bc3 Bc7 22. Rg5 Ra8 23. Rd5+ Ke6 24. Ra3 g5 25. Rb3 h5 26. Rbb5 g4 27. Rxh5 g3 28. fxg3 Rxg3 29. Be5 Bxe5 30. Rbxe5+ Kf6 31. Ref5+ Kg6 32. Kh2 Rxh3+ 33. Rxh3 f6 34. Rg3+ Kf7 35. Rgf3 Rh8+ 36. Kg2 Rg8+ 37. Kf2 Rg6 38. e5 Ke6 39. Rxf6+ Rxf6 40. exf6 Kf7 41. d4 1-0

