[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "4"]
[White "Gonzalez Moreno, Diana"]
[Black "Maldonado Arce, Omar"]
[Result "0-1"]
[ECO "B72"]
[PlyCount "62"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[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. Be3 Bg7 7. Bc4 0-0 8. Qd2 a6 9. 0-0-0 b5 10. Bd3 Nbd7 11. f3 Ne5 12. Kb1 Nc4 13. Bxc4 bxc4 14. Bh6 Bd7 15. g4 Rb8 16. Bxg7 Kxg7 17. h4 Qb6 18. Qc1 h5 19. gxh5 Nxh5 20. Nd5 Qd8 21. Ne2 e5 22. Ne3 Be6 23. Qd2 Qb6 24. Qc3 f6 25. Rhf1 Nf4 26. Nxf4 exf4 27. Nd5 Bxd5 28. Rxd5 Rh8 29. Rh1 Rxh4 30. Rhd1 Rh3 31. Rxd6 Qxd6 0-1

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "6"]
[White "Irigoyen Baldenegro, Hector"]
[Black "Maldonado Arce, Omar"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "59"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. Bc4 Nc6 5. d3 Bg4 6. Be3 Ne5 7. h3 Bxf3 8. gxf3 Nxc4 9. dxc4 g6 10. Qd2 Bg7 11. 0-0-0 a6 12. e5 dxe5 13. Qxd8+ Rxd8 14. Rxd8+ Kxd8 15. Rd1+ Kc8 16. Bxc5 e6 17. Bd6 Bh6+ 18. Kb1 Bf4 19. Ne2 Rd8 20. Nxf4 exf4 21. Rd3 Nh5 22. c5 e5 23. Bxe5 Re8 24. Bc3 Re2 25. b3 Rxf2 26. Ba5 b6 27. Bxb6 Re2 28. Rd8+ Kb7 29. Rd7+ Kc6 30. c4 1-0

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "3"]
[White "Lopez Cota, Mauricio"]
[Black "Maldonado Arce, Omar"]
[Result "1/2-1/2"]
[ECO "C34"]
[PlyCount "101"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d6 4. Bc4 Bg4 5. 0-0 Bxf3 6. Qxf3 Nc6 7. c3 g5 8. d4 Na5 9. Bd3 Qd7 10. b4 Nc6 11. b5 Na5 12. Bd2 0-0-0 13. c4 b6 14. Bxa5 bxa5 15. e5 Kb8 16. Be4 Qc8 17. Bc6 Ne7 18. Nc3 Nxc6 19. bxc6 dxe5 20. Rab1+ Ka8 21. Rb5 Qa6 22. Rfb1 Bb4 23. Nd5 Qc8 24. a3 Rxd5 25. Qxd5 Qf5 26. Rf1 Bc3 27. Qxe5 Qxe5 28. dxe5 Re8 29. Rd1 a6 30. Rbd5 Bxe5 31. Rxa5 Ka7 32. Rdd5 f6 33. Kf1 Re6 34. Rd7 Rxc6 35. Rad5 Rxc4 36. Rxh7 Kb6 37. Rd3 c5 38. Rb3+ Ka5 39. Rd7 Bd4 40. Rd6 Ka4 41. Rdb6 a5 42. Rd3 Rc3 43. Rxc3 Bxc3 44. Ke2 Kxa3 45. Kd3 Bd4 46. Kc2 a4 47. Rb1 c4 48. h3 c3 49. Rb5 Be5 50. Kc1 Ka2 51. Kc2 1/2-1/2

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "5"]
[White "Maldonado Arce, Omar"]
[Black "Cereceres Munoz, Maribel"]
[Result "1/2-1/2"]
[ECO "B98"]
[PlyCount "75"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[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 a6 6. Bg5 e6 7. f4 Be7 8. Be2 Qc7 9. 0-0 b5 10. a3 Bb7 11. Bf3 Nbd7 12. Bxf6 Bxf6 13. Kh1 Be7 14. f5 e5 15. Nde2 Rc8 16. Ng3 Nf6 17. Nh5 Nxh5 18. Bxh5 Qc5 19. Qd2 h6 20. Rad1 Rd8 21. Nd5 Bxd5 22. Qxd5 Qxd5 23. Rxd5 Bg5 24. Rfd1 Ke7 25. Be2 Rd7 26. a4 bxa4 27. Bxa6 Rb8 28. Bb5 Rdd8 29. Ra1 Be3 30. Rxa4 Ra8 31. b3 Bc5 32. Rd1 Rxa4 33. bxa4 Rb8 34. Rb1 Kd8 35. c4 Kc7 36. g4 Be3 37. Kg2 Bd4 38. Kf3 1/2-1/2

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "7"]
[White "Maldonado Arce, Omar"]
[Black "Cesena Cesena, Roberto"]
[Result "1-0"]
[ECO "C33"]
[PlyCount "56"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d6 5. Bc4 Nc6 6. d4 Qe7 7. 0-0 Qd8 8. Bxf4 Bg4 9. Qd2 Bxf3 10. Rxf3 Qd7 11. Re1 0-0-0 12. Bb5 a6 13. Ba4 b5 14. Nxb5 axb5 15. Bxb5 d5 16. Bxc6 Qxc6 17. Rc3 Bb4 18. Rxc6 Bxd2 19. Bxd2 Kb7 20. exd5 Nxd5 21. Rc5 Rd7 22. c4 Nf6 23. Rb5+ Kc8 24. d5 c6 25. Rc5 Kb7 26. dxc6+ Kb6 27. Be3 Rc7 28. Rg5+ Kxc6 1-0

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "1"]
[White "Maldonado Arce, Omar"]
[Black "Garcia Gonzalez, Jose Gilberto"]
[Result "1/2-1/2"]
[ECO "C35"]
[PlyCount "110"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. d4 Bh4+ 5. Ke2 d6 6. Bxf4 Bg4 7. Qd3 Nd7 8. Nbd2 Be7 9. h3 Bxf3+ 10. Nxf3 Ngf6 11. Re1 a6 12. Kd1 0-0 13. g4 b5 14. Re2 Nb6 15. h4 Qd7 16. Bh3 Qc6 17. Rhe1 Qc4 18. Qxc4 Nxc4 19. b3 Nb6 20. g5 Nh5 21. Bh2 g6 22. d5 Rfe8 23. Nd4 Ng7 24. Kd2 f6 25. Ne6 Nxe6 26. Bxe6+ Kg7 27. Rf2 Rf8 28. Ref1 Rad8 29. h5 f5 30. h6+ Kh8 31. exf5 Bxg5+ 32. Bf4 Be7 33. Be3 Nd7 34. Bd4+ Ne5 35. fxg6 Rxf2+ 36. Rxf2 Bg5+ 37. Ke2 hxg6 38. Rg2 Bxh6 39. Rxg6 Kh7 40. Rg2 Rf8 41. Bxe5 dxe5 42. c4 e4 43. Rf2 Rxf2+ 44. Kxf2 e3+ 45. Ke2 Bf4 46. cxb5 axb5 47. a4 bxa4 48. bxa4 Bd6 49. Kxe3 Bc5+ 50. Kd3 Kg7 51. Kc4 Bb6 52. Kb5 Kf6 53. Bd7 Ke7 54. Bc6 Kd8 55. a5 Be3 1/2-1/2

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "2"]
[White "Moreno Perez, Jorge"]
[Black "Maldonado Arce, Omar"]
[Result "1/2-1/2"]
[ECO "B95"]
[PlyCount "68"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[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 a6 6. Bg5 e6 7. Be2 Be7 8. Qd2 b5 9. a3 Bb7 10. f3 0-0 11. 0-0 Nc6 12. Rad1 b4 13. axb4 Nxb4 14. Kh1 d5 15. exd5 Nfxd5 16. Bxe7 Qxe7 17. Nxd5 Nxd5 18. c3 g6 19. Rfe1 Qf6 20. Bf1 Rfd8 21. Qc2 e5 22. Nb3 Rac8 23. Qf2 Nf4 24. Nc5 Rxd1 25. Rxd1 Qc6 26. Nxb7 Qxb7 27. Rd6 Rc6 28. Rd2 a5 29. Qe1 Re6 30. Bc4 Re7 31. Qf2 Rc7 32. Bf1 Rd7 33. h3 Rd5 34. Bc4 Rd7 1/2-1/2

[Event "Pan American-ch Amateur"]
[Site "Hermosillo"]
[Date "2001.??.??"]
[Round "8"]
[White "Pena, Carlos"]
[Black "Maldonado Arce, Omar"]
[Result "1/2-1/2"]
[ECO "B70"]
[WhiteElo "2026"]
[PlyCount "15"]
[EventDate "2001.12.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[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. Bb5+ Bd7 7. 0-0 Bg7 8. Be3 1/2-1/2

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.23"]
[Round "7.4"]
[White "Maldonado Arce, Omar"]
[Black "Arias, Teodosio"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "29"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Nxc3 9. bxc3 Be7 10. d5 Na5 11. d6 cxd6 12. Bxf7+ Kxf7 13. Qd5+ Kg6 14. g4 Rf8 15. Qh5+ 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.20"]
[Round "4.4"]
[White "Ramirez, Raul"]
[Black "Maldonado Arce, Omar"]
[Result "1-0"]
[ECO "A37"]
[PlyCount "89"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. 0-0 d6 6. Nc3 e6 7. d3 Nge7 8. Bd2 0-0 9. a3 f5 10. Rb1 b6 11. Qc1 Re8 12. Ne1 Rb8 13. Nc2 Bb7 14. b4 h6 15. Nb5 Kh7 16. Bf4 e5 17. Bd2 Qd7 18. Ne3 Nd4 19. Nc3 Bxg2 20. Kxg2 f4 21. Ned5 Nxd5 22. cxd5 f3+ 23. exf3 Qf5 24. Qd1 Qxd3 25. Re1 Nxf3 26. Qxf3 Qxd2 27. Ne4 Qa2 28. Ra1 Qc4 29. Rac1 Qa6 30. Nxd6 Rf8 31. Qb3 cxb4 32. axb4 b5 33. Ne4 Qb6 34. Red1 Rbd8 35. Rc6 Qb7 36. Rd3 Qf7 37. d6 Qf5 38. f3 g5 39. g4 Qf4 40. Qd5 h5 41. h3 h4 42. Rc7 Rc8 43. Qb7 Rxc7 44. Qxc7 Kg6 45. d7 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.19"]
[Round "3.4"]
[White "Maldonado Arce, Omar"]
[Black "Fenoglio, Virgilio"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "59"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nc6 5. Nc3 e6 6. Nf3 Nf6 7. c5 Be7 8. Bb5 0-0 9. 0-0 Bd7 10. Re1 a6 11. Bxc6 Bxc6 12. b4 Ne4 13. Qd3 Nxc3 14. Qxc3 a5 15. a3 axb4 16. axb4 Rxa1 17. Qxa1 Qa8 18. Bf4 Bb5 19. Qb2 Re8 20. Ra1 Qc8 21. Ra5 Bd7 22. b5 f6 23. c6 bxc6 24. b6 e5 25. b7 Qc7 26. Ra8 Bd6 27. dxe5 fxe5 28. Bxe5 Rb8 29. Bxd6 Qxd6 30. Qe5 1-0

[Event "Playas de General Madariaga-08"]
[Site "Pinamar"]
[Date "1973.03.18"]
[Round "2.4"]
[White "Laplaza, Jorge FN"]
[Black "Maldonado Arce, Omar"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "62"]
[EventDate "1973.03.17"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. e5 d4 4. exf6 dxc3 5. fxg7 cxd2+ 6. Bxd2 Bxg7 7. Qh5 Qd4 8. c3 Qe4+ 9. Be3 0-0 10. Be2 Qc2 11. Rc1 Qxb2 12. Bd3 Bxc3+ 13. Kf1 f5 14. g4 Nc6 15. Nf3 Bf6 16. gxf5 Bd7 17. Rg1+ Kh8 18. Ng5 Bxg5 19. Rxg5 Qf6 20. Rg6 Qe5 21. Rg5 Rf6 22. Rc4 Qd5 23. Ke2 Ne5 24. Rd4 Qxa2+ 25. Bd2 Nxd3 26. Rh4 Nc1+ 27. Kf1 Qa6+ 28. Kg2 Bc6+ 29. Kh3 Qf1+ 30. Kg4 Qg2+ 31. Kf4 Nd3+ 0-1

