[Event "BRA-ch U12 Girls 5th"]
[Site "Americana"]
[Date "1991.03.??"]
[Round "3"]
[White "Betschart, Mariana"]
[Black "Nogueira, Monica"]
[Result "1/2-1/2"]
[ECO "A05"]
[PlyCount "86"]
[EventDate "1991.03.28"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 e6 3. Bb2 Bb4 4. e3 0-0 5. Be2 Nc6 6. 0-0 b6 7. d3 d5 8. Ne5 Nxe5 9. Bxe5 Ba6 10. Nd2 Nd7 11. d4 Bc3 12. Bxa6 Bxa1 13. Qxa1 c5 14. dxc5 bxc5 15. Bxg7 Re8 16. Bh6 f6 17. f4 Qa5 18. Rf3 Re7 19. Rg3+ Kf7 20. Rg7+ Ke8 21. Rg8+ Kf7 22. Rxa8 Qxd2 23. Rxa7 Qxe3+ 24. Kh1 c4 25. Ra8 e5 26. Qg1 exf4 27. Qxe3 fxe3 28. Bxe3 Rxe3 29. Kg1 Nc5 30. Kf2 Re7 31. bxc4 d4 32. a3 Re6 33. Ra7+ Kg6 34. Bc8 Re3 35. Bb7 Kg5 36. Ra5 Re5 37. Kf3 Nxb7 38. Ra7 Rf5+ 39. Ke4 Rf4+ 40. Kd5 Nd8 41. c5 Rf5+ 42. Kd6 Rf2 43. Rd7 Rxc2 1/2-1/2

[Event "BRA-ch U12 Girls 5th"]
[Site "Americana"]
[Date "1991.03.??"]
[Round "4"]
[White "Betschart, Mariana"]
[Black "Ramos, Marina"]
[Result "1-0"]
[ECO "A38"]
[PlyCount "129"]
[EventDate "1991.03.28"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nf6 5. Nc3 d6 6. 0-0 0-0 7. d3 Nc6 8. Be3 Bd7 9. Qc1 Rb8 10. a4 Ng4 11. h3 Nxe3 12. Qxe3 Nd4 13. Rac1 Nxf3+ 14. Bxf3 Bxh3 15. Rfe1 f5 16. Qe6+ Kh8 17. Rb1 Rf6 18. Qe3 Qd7 19. Qg5 Rbf8 20. Nd5 R6f7 21. e3 Bg4 22. Kg2 e6 23. Nf4 e5 24. Nd5 Bxf3+ 25. Kxf3 Bf6 26. Qh6 Bg7 27. Qg5 Bf6 28. Qh6 Rg7 29. Nxf6 Rxf6 30. Qg5 e4+ 31. Ke2 exd3+ 32. Kxd3 Rff7 33. Rh1 Re7 34. Rh2 Re5 35. Rbh1 Qe7 36. Qxe7 Rexe7 37. Rh4 g5 38. Rh6 Rd7 39. Rf6 Rgf7 40. Rg6 g4 41. Rhh6 d5 42. Rd6 Rxd6 43. Rxd6 dxc4+ 44. Kxc4 b6 45. a5 Rb7 46. a6 Rc7 47. Rd8+ Kg7 48. Rb8 Re7 49. Rb7 Kf6 50. Kb5 Ke6 51. Rxe7+ Kxe7 52. Kc6 Kd8 53. Kd6 Ke8 54. Ke6 Kd8 55. Kxf5 Kc7 56. e4 b5 57. e5 c4 58. e6 b4 59. Kf6 Kd8 60. Kf7 c3 61. bxc3 b3 62. e7+ Kc7 63. e8Q b2 64. Qb5 h5 65. Qxb2 1-0

[Event "BRA-ch U12 Girls 5th"]
[Site "Americana"]
[Date "1991.03.??"]
[Round "6"]
[White "Nogueira, Monica"]
[Black "Betschart, Mariana"]
[Result "1-0"]
[ECO "A48"]
[PlyCount "99"]
[EventDate "1991.03.28"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. e3 0-0 5. Be2 d5 6. 0-0 Be6 7. Nbd2 h6 8. Bf4 Bf5 9. c3 Nc6 10. Qb3 Na5 11. Qb4 b6 12. b3 Nd7 13. Rac1 c5 14. Qa3 Rc8 15. Ba6 Rc6 16. Rfe1 Re8 17. Bb5 Rc8 18. c4 e6 19. Bd6 Nb7 20. Bf4 Re7 21. Qxa7 Na5 22. Bd6 Ra8 23. Bxe7 Rxa7 24. Bxd8 Nb8 25. Bxb6 Ra8 26. Bxc5 Nb7 27. Bb6 Rxa2 28. c5 Na5 29. b4 Nac6 30. Nb3 Nxb4 31. Rc3 Nc2 32. Re2 Ra3 33. Ne5 Na1 34. Na5 Rxc3 35. h3 Bxe5 36. dxe5 Nb3 37. Nxb3 Rxb3 38. Ba4 Rb1+ 39. Kh2 Rc1 40. f3 Nd7 41. Bxd7 Bd3 42. Rf2 Ba6 43. Kg3 Bb7 44. Ba7 Kg7 45. Rb2 Ba6 46. c6 Bf1 47. Bb8 Ba6 48. c7 g5 49. Rb6 h5 50. Rxa6 1-0

[Event "BRA-ch U12 Girls 5th"]
[Site "Americana"]
[Date "1991.03.??"]
[Round "1"]
[White "Ramos, Marina"]
[Black "Betschart, Mariana"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "47"]
[EventDate "1991.03.28"]
[EventType "tourn"]
[EventRounds "4"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nxe4 5. Qa4+ Nd7 6. Qxe4 Nf6 7. Qc2 e6 8. d4 Qc7 9. dxc5 dxc5 10. 0-0 Bd6 11. Rd1 0-0 12. Qd3 Rd8 13. Bf4 Nd5 14. Bxd6 Qxd6 15. c4 Nb4 16. Qxd6 Rxd6 17. Rxd6 g6 18. Rd8+ Kg7 19. Nc3 Nc6 20. Re8 f6 21. Ne4 b6 22. Rd1 Kf7 23. Nd6+ Kg7 24. Nxc8 1-0

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "3"]
[White "Betschart, Mariana"]
[Black "Duarte, Tatiana"]
[Result "0-1"]
[ECO "A04"]
[PlyCount "64"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nc6 2. b3 b6 3. Bb2 Bb7 4. e3 Nf6 5. Be2 e6 6. 0-0 Be7 7. d3 0-0 8. Nbd2 Re8 9. Ne5 Nxe5 10. Bxe5 d6 11. Bb2 c5 12. f4 Nd5 13. Qe1 Nxe3 14. Qg3 Nf5 15. Qg4 Bf6 16. Bxf6 Qxf6 17. Ne4 Bxe4 18. Qh3 Bb7 19. Rae1 Qd4+ 20. Kh1 Ne3 21. Rg1 Qxf4 22. Bf1 Ng4 23. Re2 Nf2+ 24. Rxf2 Qxf2 25. Qg4 Qxc2 26. Qf4 Qxa2 27. Qxd6 Qxb3 28. Qc7 Rab8 29. Be2 Qc2 30. Bf1 e5 31. h3 e4 32. d4 Red8 0-1

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "1"]
[White "Betschart, Mariana"]
[Black "Kurihara, Erika"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "116"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. e3 Nc6 7. Bd3 dxc4 8. Bxc4 h6 9. Bxf6 Bxf6 10. 0-0 Bd7 11. Qb3 Na5 12. Qb4 b6 13. Rad1 Be7 14. Qxa5 bxa5 15. Ba6 Rb8 16. b3 Rb6 17. Bc4 Bb4 18. Ne2 Bc6 19. Ne5 Bd5 20. Bxd5 Qxd5 21. Nf4 Qd8 22. d5 Qc8 23. Nc6 exd5 24. Nxb4 axb4 25. Nxd5 Rb5 26. Ne7+ Kh8 27. Nxc8 Rxc8 28. Rd7 f6 29. Rfd1 Kh7 30. a4 bxa3 31. Ra1 Rxb3 32. Rd2 Rcb8 33. Kf1 Rb2 34. Rxb2 axb2 35. Rb1 a5 36. Ke2 a4 37. Kd2 a3 38. Kc2 a2 39. Rxb2 a1Q 40. Rxb8 Qa2+ 41. Rb2 Qc4+ 42. Kb1 Qf1+ 43. Ka2 Kg6 44. f4 Kf5 45. Rb4 Qxg2+ 46. Rb2 Qd5+ 47. Kb1 Ke4 48. Rg2 Kxe3 49. Rxg7 Qd2 50. Rxc7 Qxh2 51. Rc3+ Kxf4 52. Rc4+ Ke5 53. Rc2 Qxc2+ 54. Kxc2 Kf4 55. Kd2 Kf3 56. Ke1 Kg2 57. Ke2 h5 58. Ke3 h4 0-1

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "5"]
[White "Betschart, Mariana"]
[Black "Miyauchi, Adrianna"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "80"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 c5 5. Be3 Nc6 6. Bb5 Bd7 7. 0-0 a6 8. Bxc6 Bxc6 9. Re1 cxd4 10. Nxd4 Nf6 11. Nxc6 bxc6 12. Qd3 0-0 13. Qc4 c5 14. Rad1 Nd7 15. f4 Rb8 16. b3 Qa5 17. Nd5 Rfe8 18. Bd2 Qb5 19. Qxb5 axb5 20. Nc7 Rec8 21. Nd5 Kf8 22. Ne3 b4 23. Ng4 Ra8 24. e5 Rxa2 25. exd6 exd6 26. Rc1 Bb2 27. Rb1 Bd4+ 28. Ne3 Rxc2 29. Rbd1 Re8 30. Kh1 Bxe3 31. Bxe3 Rc3 32. Bd2 Rxe1+ 33. Bxe1 Rxb3 34. Rxd6 Rb1 35. Kg1 Rxe1+ 36. Kf2 Re7 37. Rc6 b3 38. Rc8+ Re8 39. Rc7 b2 40. Rb7 Rb8 0-1

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "6"]
[White "Duarte, Tatiana"]
[Black "Betschart, Mariana"]
[Result "1-0"]
[ECO "B42"]
[PlyCount "69"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3 e6 7. 0-0 Be7 8. Be3 b5 9. a3 0-0 10. Qf3 Bb7 11. Qg3 g6 12. Bh6 Re8 13. Rfe1 Nbd7 14. Nb3 Rc8 15. Rad1 Ne5 16. Bf4 Qc7 17. h3 Nh5 18. Qh2 Nxf4 19. Qxf4 Nc4 20. Bxc4 bxc4 21. Nd2 Qb6 22. Rb1 Red8 23. Nf3 Rc7 24. Ng5 Bf8 25. Qh4 Bg7 26. Nxe6 fxe6 27. Qxd8+ Bf8 28. Re3 Kg7 29. Qh4 Rf7 30. Qg3 d5 31. exd5 exd5 32. Qe5+ Kg8 33. Nxd5 Qa7 34. Nf6+ Kh8 35. Nd7+ 1-0

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "4"]
[White "Kurihara, Erika"]
[Black "Betschart, Mariana"]
[Result "0-1"]
[ECO "B84"]
[PlyCount "76"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 b5 8. a3 Bb7 9. Bg5 Be7 10. Bxf6 Bxf6 11. f4 Qb6 12. Kh1 Bxd4 13. Bf3 0-0 14. Qd2 Be3 15. Qd3 Bxf4 16. Rad1 Nd7 17. Ne2 Be5 18. b4 Nf6 19. Rfe1 Rad8 20. Nc3 Rc8 21. Nb1 Qf2 22. Re2 Qh4 23. g3 Bxg3 24. Rg1 Bf2 25. Rg2 Bb6 26. e5 Bxf3 27. Qxf3 Nh5 28. Rg4 Qe7 29. exd6 Qxd6 30. Rd2 Qe5 31. Re4 Qg5 32. Qg4 Qxg4 33. Rxg4 f5 34. Rgg2 f4 35. Rge2 Rc6 36. Kg2 f3+ 37. Kh3 fxe2 38. Rxe2 Nf4+ 0-1

[Event "BRA-ch U12 Girls"]
[Site "Machado"]
[Date "1990.04.??"]
[Round "2"]
[White "Miyauchi, Adrianna"]
[Black "Betschart, Mariana"]
[Result "1/2-1/2"]
[ECO "A50"]
[PlyCount "88"]
[EventDate "1990.04.12"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 b6 3. Nf3 Bb7 4. d4 d5 5. b3 e6 6. g3 Bb4 7. Bd2 Nbd7 8. Bg2 dxc4 9. bxc4 Bxc3 10. Bxc3 Ne4 11. Bb2 0-0 12. 0-0 f5 13. e3 Qf6 14. Qc2 Ng5 15. d5 Qh6 16. Nxg5 Qxg5 17. dxe6 Bxg2 18. Kxg2 Nc5 19. Qc3 f4 20. exf4 Rxf4 21. e7 Re4 22. Qf3 Qxe7 23. Bc3 Qg5 24. Rfe1 Qg6 25. h4 Rae8 26. Rxe4 Rxe4 27. Re1 a5 28. Qd1 Rxe1 29. Bxe1 Nd3 30. h5 Nxe1+ 31. Qxe1 Qxh5 32. Qe6+ Kf8 33. Qc8+ Qe8 34. Qxc7 Qe4+ 35. Kh2 Qc2 36. Qxb6 Qxa2 37. Kg2 Qxc4 38. Qxa5 Qe4+ 39. Kh2 Qf3 40. Qd8+ Kf7 41. Kg1 h5 42. Qd7+ Kg6 43. Qe6+ Kg5 44. Qe5+ Kg6 1/2-1/2

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "1"]
[White "Betschart, Mariana"]
[Black "Blanco Acevedo, Maria Carolina"]
[Result "0-1"]
[ECO "D53"]
[PlyCount "84"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. Nf3 Nc6 7. e4 dxe4 8. d5 exf3 9. dxc6 Qxd1+ 10. Rxd1 bxc6 11. gxf3 Rb8 12. Rc1 Rxb2 13. a4 Bd4 14. Nd1 Ra2 15. Bg2 Rxa4 16. f4 Bd7 17. 0-0 0-0 18. Re1 Re8 19. Re2 c5 20. Rd2 Ra6 21. Rb1 Rb6 22. Nb2 Reb8 23. Rbd1 Rxb2 24. Kf1 g6 25. Ke2 Kf8 26. Kf3 Bc6+ 27. Kg3 Bxg2 28. Kxg2 Rxd2 29. Rxd2 Rb2 30. Rd1 Rxf2+ 31. Kg3 Rc2 32. Rb1 Rxc4 33. Rb7 a5 34. Rxc7 a4 35. Ra7 Rc3+ 36. Kg4 a3 37. Kg5 c4 38. Rd7 a2 39. Rxd4 a1Q 40. Kf6 Rd3 41. Kg5 Qxd4 42. Kh6 Qxf4+ 0-1

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "5"]
[White "Betschart, Mariana"]
[Black "Ramos, Marina"]
[Result "1-0"]
[ECO "E90"]
[PlyCount "47"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Nbd7 6. Bf4 c5 7. dxc5 Nxc5 8. Qc2 Qb6 9. Be3 Bd7 10. Rb1 Qb4 11. a3 Qb3 12. Bd3 Qxc2 13. Bxc2 Rc8 14. b3 0-0 15. 0-0 Ng4 16. Bd2 Rc6 17. Nd5 Re8 18. b4 Na6 19. Ba4 Rxc4 20. Bxd7 Rd8 21. Bxg4 Re8 22. Bd7 Rd8 23. Bb5 Rxe4 24. Rbc1 1-0

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "3"]
[White "Betschart, Mariana"]
[Black "Refkalefsky, Natasha"]
[Result "1-0"]
[ECO "E92"]
[PlyCount "85"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Nxe5 Nbd7 10. Nxd7 Bxd7 11. 0-0 Bg4 12. Bg5 Bxe2 13. Nxe2 Rd7 14. Ng3 h6 15. Bf4 Re8 16. e5 Nh5 17. Nxh5 gxh5 18. Rfe1 Rde7 19. Rab1 Bxe5 20. Bxe5 Rxe5 21. Rxe5 Rxe5 22. h3 Kg7 23. Rd1 Re7 24. Rd5 b6 25. Rxh5 Re1+ 26. Kh2 Re2 27. Rb5 Rxf2 28. Kg1 Rf4 29. c5 Rh4 30. b3 f5 31. Kh2 f4 32. g3 fxg3+ 33. Kxg3 Rh5 34. b4 Rg5+ 35. Kf4 Kf6 36. h4 Rh5 37. Kg4 Kg6 38. a4 a5 39. bxa5 bxa5 40. Rxa5 Rd5 41. h5+ Rxh5 42. Ra6+ Kh7 43. Kxh5 1-0

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "4"]
[White "Blanco Acevedo, Maria Carolina"]
[Black "Betschart, Mariana"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "75"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Be2 e6 4. c3 Nc6 5. 0-0 Nf6 6. d3 Be7 7. Re1 0-0 8. Bf1 Qc7 9. Bf4 e5 10. Bg3 Rb8 11. Nbd2 b5 12. Rb1 b4 13. cxb4 Nxb4 14. a3 Na2 15. Qc2 Be6 16. b3 Nb4 17. axb4 Rxb4 18. Rec1 Qb8 19. Nc4 Bd8 20. Nfd2 Bc7 21. Qc3 d5 22. Nxe5 d4 23. Qxc5 Qb7 24. Qxc7 Bc8 25. Nef3 Qa6 26. Qc5 Rb7 27. Qxc8 h6 28. Qc5 Rfb8 29. Bxb8 Rxb8 30. Qxd4 Qa5 31. Ra1 Qb5 32. Rxa7 Qe8 33. Rcc7 Rd8 34. Qa4 Qe6 35. Rxf7 Qxf7 36. Rxf7 Kxf7 37. Ne5+ Ke6 38. Ndc4 1-0

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "2"]
[White "Ramos, Marina"]
[Black "Betschart, Mariana"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "82"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. d4 Nf6 5. dxc5 Nxe4 6. Be3 dxc5 7. Qxd8+ Nxd8 8. Bd3 Bf5 9. Bxc5 Ne6 10. Be3 g6 11. 0-0 Bg7 12. c3 0-0 13. Ne5 Bxe5 14. fxe5 Rad8 15. Be2 Rd5 16. Bxa7 Rxe5 17. g4 Bxg4 18. Bxg4 Rg5 19. h3 h5 20. Be3 Ng3 21. Bxg5 Nxf1 22. Bxe7 Re8 23. Bf6 hxg4 24. Kxf1 gxh3 25. Kf2 Nf4 26. Nd2 Re2+ 27. Kg3 Nh5+ 28. Kf3 Rxd2 29. Be5 Rxb2 30. a4 f6 31. Bd6 Rb3 32. Rc1 Rb2 33. a5 g5 34. c4 Nf4 35. Kg3 h2 36. c5 Ra2 37. Rb1 Ne2+ 38. Kh3 Ng1+ 39. Kg3 h1Q 40. Kg4 Rf2 41. Kg3 Qg2# 0-1

[Event "Pan American-ch U10 Girls 2nd"]
[Site "Cubatao"]
[Date "1989.11.??"]
[Round "6"]
[White "Refkalefsky, Natasha"]
[Black "Betschart, Mariana"]
[Result "1/2-1/2"]
[ECO "B50"]
[PlyCount "36"]
[EventDate "1989.11.24"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 e6 4. d3 Nc6 5. g3 Be7 6. Bg2 Nf6 7. 0-0 0-0 8. Bg5 h6 9. Be3 Ng4 10. Re1 Rb8 11. a3 b5 12. Rb1 Qb6 13. Na2 Qa5 14. Bd2 Qa4 15. c3 Qxd1 16. Rexd1 b4 17. Nc1 Ba6 18. d4 d5 1/2-1/2

