[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "4"]
[White "Campos Munoz, Valentina"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "C68"]
[BlackElo "1010"]
[PlyCount "59"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Bd7 7. Ne5 Nf6 8. Bg5 Bd6 9. Nxd7 Qxd7 10. 0-0 0-0-0 11. e5 c5 12. Qf4 Nd5 13. Qg3 Be7 14. Nc3 Bxg5 15. Qxg5 f6 16. Qg3 Nb4 17. Ne4 Nxc2 18. Rac1 Nd4 19. Rfe1 fxe5 20. Qxe5 Rhe8 21. Qxc5 Re6 22. Qa7 Qf7 23. Qa8+ Kd7 24. Nc5+ Ke8 25. Rxe6+ Nxe6 26. Qa7 b6 27. Nxe6 Qxe6 28. Qxc7 Qe2 29. f3 Qxb2 30. Re1+ 1-0

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "9"]
[White "Laing, Raquel"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "D06"]
[BlackElo "1010"]
[PlyCount "54"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Trinidad and Tobago"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "TRI"]
[BlackTeamCountry "CRI"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Nf6 4. e3 Bf5 5. c4 e6 6. Nc3 Be7 7. Be2 0-0 8. 0-0 Nb4 9. Ne1 Bd6 10. Bxd6 Qxd6 11. a3 Na6 12. Nf3 Bg4 13. Ne5 Bxe2 14. Qxe2 c5 15. Ng4 Nxg4 16. Qxg4 dxc4 17. dxc5 Qxc5 18. Qd4 Qc7 19. Nb5 Qc6 20. a4 Rad8 21. Qc3 Rd5 22. Nxa7 Qc5 23. Nb5 Rg5 24. g3 Rh5 25. Rfd1 Qf5 26. Qxc4 Qh3 27. Qf1 Qxh2# 0-1

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "2"]
[White "Leon Bermudez, Marcelo"]
[Black "Guevara Ruiz, Marvin Andres"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1010"]
[BlackElo "1347"]
[PlyCount "102"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "El Salvador"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "ESA"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Qb6 6. Na3 cxd4 7. cxd4 Bxa3 8. bxa3 Nge7 9. Be3 Qa5+ 10. Bd2 Qxa3 11. Be2 0-0 12. 0-0 Nf5 13. Rb1 a5 14. Rb3 Qxa2 15. Bc3 a4 16. Rb2 Qa3 17. Qd2 Qe7 18. Ng5 h6 19. Nh3 a3 20. Ra2 Bd7 21. Nf4 Rfb8 22. Nh5 b5 23. Bg4 b4 24. Bb2 axb2 25. Rxa8 Rxa8 26. Qxb2 Nfxd4 27. Qd2 b3 28. Qf4 Qg5 29. Qg3 b2 30. h4 Qxe5 31. f4 Qe4 32. Nf6+ gxf6 33. Bh5+ Qg6 34. Bxg6 Ne2+ 35. Kh2 Nxg3 36. Kxg3 fxg6 37. Rb1 Rb8 38. Kf2 e5 39. fxe5 Bf5 40. Rd1 b1Q 41. Rxb1 Rxb1 42. Kf3 fxe5 43. g4 Bxg4+ 44. Kxg4 h5+ 45. Kg5 d4 46. Kf6 d3 47. Ke6 d2 48. Kd6 d1Q+ 49. Kxc6 Rc1+ 50. Kb7 Qb3+ 51. Ka8 Ra1# 0-1

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "7"]
[White "Leon Bermudez, Marcelo"]
[Black "Lopez Escobar, Jose David"]
[Result "0-1"]
[ECO "B08"]
[WhiteElo "1010"]
[BlackElo "1115"]
[PlyCount "131"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "GUA"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be3 0-0 6. Bc4 Nbd7 7. 0-0 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qf3 b6 11. Bg5 Bb7 12. Rad1 Qe7 13. Bd5 c6 14. Bb3 h6 15. Bh4 b5 16. a3 a5 17. Rd2 Rad8 18. Rdd1 Ba6 19. Rfe1 g5 20. Bg3 Nd7 21. Qh5 Nc5 22. Ba2 b4 23. axb4 axb4 24. Ne2 Nxe4 25. Rxd8 Rxd8 26. c3 Bxe2 27. Qxe2 Nxg3 28. hxg3 bxc3 29. bxc3 Kh8 30. Qf3 Qa3 31. Bxf7 Rf8 32. Qh5 Qxc3 33. Rb1 c5 34. Qg6 Qd2 35. Rf1 Qd7 36. Be6 Qd6 37. f4 exf4 38. gxf4 Rf6 39. Qe8+ Rf8 40. Qg6 gxf4 41. Re1 Qd4+ 42. Kh1 Qf6 43. Qg4 Re8 44. Qh5 Rxe6 45. Rxe6 Qxe6 46. Qxc5 Qe1+ 47. Kh2 Qg3+ 48. Kh1 Qh4+ 49. Kg1 Qf6 50. Qc8+ Qf8 51. Qc6 Qf6 52. Qc8+ Kh7 53. Qc2+ Qg6 54. Qc4 Qb6+ 55. Kh2 Qd6 56. Qe4+ Kg8 57. Qc4+ Kf8 58. Qc8+ Kf7 59. Qc4+ Kg6 60. Qe4+ Kg5 61. Qf3 Be5 62. Kh3 h5 63. Qf2 Qd7+ 64. Kh2 f3+ 65. g3 Kg4 66. Qe3 0-1

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "5"]
[White "Leon Bermudez, Marcelo"]
[Black "Mayorga Araya, Sofia"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1010"]
[BlackElo "1381"]
[PlyCount "104"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "CRI"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Be3 cxd4 7. cxd4 Bb4+ 8. Nc3 Qd8 9. Bb5+ Bd7 10. Bxd7+ Nbxd7 11. 0-0 0-0 12. Ne2 Nd5 13. Bg5 N7f6 14. a3 Bd6 15. Ne5 h6 16. Bh4 Qb8 17. Bxf6 Nxf6 18. Nf3 Rd8 19. Qb1 b5 20. d5 Nxd5 21. Ned4 Qb6 22. Qe4 Rac8 23. Rac1 Nf6 24. Qe2 Bc5 25. Nxb5 Bxf2+ 26. Kh1 Rxc1 27. Rxc1 Rb8 28. Rb1 Bc5 29. a4 Ng4 30. Ne5 Nxe5 31. Qxe5 a6 32. Nc3 Bd4 33. Qg3 Qb4 34. Na2 Qb3 35. Qd6 Bxb2 36. Nc3 a5 37. Nb5 Rc8 38. Nd4 Qd3 39. Re1 Qxd4 40. Qxd4 Bxd4 41. Rb1 e5 42. h3 e4 43. Re1 e3 44. h4 Rc2 45. Rd1 e2 46. Rxd4 e1Q+ 47. Kh2 Qf2 48. Rg4 f5 49. Rg3 f4 50. Rg4 h5 51. Rxg7+ Kxg7 52. Kh3 Qg3# 0-1

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "3"]
[White "Melara, Gabriela Alejandra"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C84"]
[BlackElo "1010"]
[PlyCount "56"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "El Salvador"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "ESA"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Be7 6. d3 Nf6 7. c3 0-0 8. 0-0 d6 9. h3 Nh5 10. Nbd2 Nf4 11. Kh2 Nxd3 12. Rg1 Bh4 13. Nxh4 Nxf2 14. Qe2 Qxh4 15. Nf3 Ng4+ 16. Kh1 Qh5 17. Bg5 Be6 18. Bxe6 fxe6 19. Be3 d5 20. exd5 exd5 21. Qd2 Kh8 22. Qxd5 Nxe3 23. Qxc6 Rae8 24. Rge1 Nc2 25. Red1 Nxa1 26. Rd7 e4 27. Nd4 Rf1+ 28. Kh2 Qe5+ 0-1

[Event "Caribbean-ch U12"]
[Site "San Salvador"]
[Date "2021.11.27"]
[Round "1"]
[White "Yashvardhan Bunsee, Ari"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C57"]
[WhiteElo "1284"]
[BlackElo "1010"]
[PlyCount "46"]
[EventDate "2021.11.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Trinidad and Tobago"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "TRI"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. 0-0 Nf5 7. Bb5+ Bd7 8. Bc4 Nd6 9. Bb3 Be7 10. Re1 Ng4 11. Nf3 0-0 12. h3 Nf6 13. Nxe5 Bf5 14. d3 Nb5 15. Be3 Bd6 16. Nf3 Nh5 17. a4 Qf6 18. axb5 Bf4 19. Bxf4 Nxf4 20. Qd2 Bxh3 21. g3 Ng6 22. Qg5 Qxf3 23. Qe3 Qg2# 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "8"]
[White "Gonzalez De la Guardia, Luis Emilio"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C84"]
[WhiteElo "1550"]
[BlackElo "1010"]
[PlyCount "32"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 Nf6 6. 0-0 Be7 7. d3 0-0 8. Nc3 d6 9. a4 b4 10. Nd5 Bg4 11. Be3 Nxd5 12. Bxd5 Bxf3 13. Qxf3 Qd7 14. a5 Rab8 15. Qg3 Nd4 16. Bh6 Ne2+ 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "2"]
[White "Horb, David"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C50"]
[BlackElo "1010"]
[PlyCount "70"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Be7 6. Bf4 d6 7. Bc4 0-0 8. 0-0 Bg4 9. Qd3 Nb4 10. Qd2 c5 11. Nf3 Bxf3 12. gxf3 Nh5 13. Bg3 Nxg3 14. fxg3 a6 15. a3 Nc6 16. Rad1 b5 17. Bd5 Rc8 18. Ne2 Ne5 19. f4 Ng4 20. h3 Nf6 21. Ba2 Nxe4 22. Qd3 Nf6 23. Nc3 c4 24. Qd2 Rc5 25. Rfe1 Re8 26. b4 Rh5 27. Kg2 Qa8+ 28. Kh2 Ng4+ 29. Kg1 Rxh3 30. Qg2 Qa7+ 31. Kf1 Rh2 32. Qg1 Qb7 33. Nd5 Rxc2 34. Bb1 Nh2+ 35. Qxh2 Rxh2 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "7"]
[White "Leon Bermudez, Marcelo"]
[Black "Mamedov, Aziz"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1010"]
[PlyCount "89"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 0-0 6. d3 d6 7. Bg5 Be6 8. Bd5 h6 9. Bxe6 fxe6 10. Bh4 g5 11. Bg3 Qe7 12. Nb5 d5 13. Nxe5 Nxe5 14. Bxe5 dxe4 15. Nxc7 Rad8 16. Qe2 exd3 17. cxd3 Bb6 18. Nb5 Rd5 19. Bxf6 Rxf6 20. Nc3 Rdf5 21. Ne4 Rf7 22. Qh5 Qf8 23. Rad1 Bxf2+ 24. Kh1 Bd4 25. Rxf5 Rxf5 26. Qg6+ Kh8 27. Ng3 Rf6 28. Qe4 Bxb2 29. d4 Qf7 30. Qe5 Kg8 31. Qb8+ Kg7 32. Qe5 Kh7 33. Qc5 Rf4 34. Qc2+ Kg7 35. Qxb2 b6 36. d5+ Kg8 37. d6 h5 38. d7 h4 39. d8Q+ Qf8 40. Qxf8+ Rxf8 41. Nh5 Rf7 42. Rd8+ Kh7 43. Rh8+ Kg6 44. Qc2+ Rf5 45. g4 1-0

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "11"]
[White "Leon Bermudez, Marcelo"]
[Black "Monroy Lopez, Gustavo Adolfo"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1010"]
[PlyCount "56"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 g6 5. Nf3 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Bc4 0-0 9. Bd3 Nb4 10. Bc4 a6 11. 0-0 b5 12. Bb3 Bb7 13. d5 Ng4 14. Bf4 a5 15. Nxb5 Bxb2 16. Rb1 Bg7 17. a3 Ba6 18. Bc4 Bxb5 19. Bxb5 Na6 20. Qe2 Nc5 21. Ng5 Nf6 22. Rfc1 h6 23. Nf3 Nfxe4 24. Be3 Nc3 25. Qc2 Nxb1 26. Rxb1 Rc8 27. Qe2 Ne4 28. Ba6 Nc3 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "3"]
[White "Leon Bermudez, Marcelo"]
[Black "Rogatshjov, Timofei"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1010"]
[PlyCount "31"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bd6 7. e5 Bb4+ 8. Bd2 Ne4 9. Bxb4 Nxb4 10. Qb3 Nd3+ 11. Qxd3 0-0 12. Qxe4 Qe8 13. 0-0 Qe6 14. Bxe6 g5 15. Nxg5 Kg7 16. Qxh7# 1-0

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "9"]
[White "Leon Bermudez, Marcelo"]
[Black "Romany, Joy"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1010"]
[BlackElo "1451"]
[PlyCount "120"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Be2 e6 7. Be3 cxd4 8. cxd4 Nc6 9. Nc3 Qd7 10. 0-0 Be7 11. Bb5 a6 12. Ba4 0-0 13. h3 Bxf3 14. Qxf3 Rac8 15. Rac1 Rfd8 16. Rfd1 Nd5 17. Nxd5 Qxd5 18. Qe2 Qd7 19. Qg4 b5 20. Bb3 Na5 21. Rxc8 Rxc8 22. d5 Nxb3 23. dxe6 Qxe6 24. Qxe6 fxe6 25. axb3 Bf6 26. Rd6 Ra8 27. Rxe6 Bxb2 28. Rb6 Bf6 29. Kf1 Kf8 30. Ke2 Ke7 31. Kd3 Kd7 32. Bf4 Ke7 33. Ke4 Kf7 34. Kd5 Bd8 35. Rb7+ Kg8 36. Kc6 Rc8+ 37. Rc7 Bxc7 38. Bxc7 Rf8 39. f3 Rf6+ 40. Kc5 h5 41. Kb4 Rg6 42. g4 hxg4 43. hxg4 Rc6 44. Be5 g6 45. Ka5 Kf7 46. Bd4 Ke6 47. Bb6 Rc3 48. Kb4 Rxf3 49. Bd8 Kd7 50. Bh4 Rf4+ 51. Ka5 Rxg4 52. Kxa6 Rxh4 53. Kxb5 Kc7 54. Ka5 Kb8 55. b4 Rf4 56. b5 g5 57. b6 g4 58. Kb5 g3 59. Kc6 g2 60. b7 g1Q 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "5"]
[White "Leon Bermudez, Marcelo"]
[Black "Sathish, Githina"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1010"]
[PlyCount "107"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Nc3 Bd6 6. Bd3 c6 7. Be3 Bg4 8. 0-0 Nbd7 9. h3 Bh5 10. Be2 Bg6 11. Bg5 0-0 12. Re1 Qc7 13. Bxf6 Nxf6 14. Bd3 Rfe8 15. Bxg6 fxg6 16. Rxe8+ Rxe8 17. a3 Nh5 18. b4 Nf4 19. b5 cxb5 20. Nxb5 Qe7 21. Nxd6 Ne2+ 22. Kh1 Qxd6 23. Ne5 Nf4 24. Qg4 Ne6 25. Rb1 Nxd4 26. Nd7 Nf5 27. Qa4 Re4 28. Qb5 h6 29. Nc5 Re7 30. Nxb7 Qf4 31. Qxd5+ Kh7 32. Nc5 Qxf2 33. Ne6 Ng3+ 34. Kh2 Nf5 35. Nf8+ Kh8 36. Nxg6+ Kh7 37. Nxe7 Qg3+ 38. Kh1 Nxe7 39. Qe4+ Ng6 40. c4 Qxa3 41. Qd5 Qg3 42. c5 Nf4 43. Qe4+ Ng6 44. c6 Qc3 45. Qd5 Qc2 46. Rf1 Qe2 47. Rd1 Nf4 48. Qf3 Qe5 49. Rc1 Ng6 50. c7 Qe8 51. c8Q Qxc8 52. Rxc8 Ne5 53. Qe4+ Ng6 54. Qd5 1-0

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "1"]
[White "Leon Bermudez, Marcelo"]
[Black "Smirnov, Mark"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1010"]
[BlackElo "1482"]
[PlyCount "76"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. d4 cxd4 4. cxd4 Nxe4 5. Bd3 Nf6 6. Nf3 e6 7. 0-0 Be7 8. Bf4 0-0 9. Nc3 Nc6 10. Bc2 d5 11. Qd3 Nb4 12. Qd1 Nxc2 13. Qxc2 Bd7 14. Be5 Rc8 15. Qd3 a6 16. Ng5 g6 17. Qh3 h5 18. Ne2 Ng4 19. Nf3 Nxe5 20. Nxe5 Bb5 21. Rfe1 Kg7 22. Nf4 Qd6 23. Re3 h4 24. g3 Bg5 25. Qg4 Bxf4 26. gxf4 Rce8 27. Qxh4 Qe7 28. Qg4 Rh8 29. Rg3 Qh4 30. Qxh4 Rxh4 31. Kh1 Reh8 32. Nf3 Rxf4 33. Kg2 Be2 34. Rc1 Bxf3+ 35. Rxf3 Rxh2+ 36. Kxh2 Rxf3 37. Rc7 Rxf2+ 38. Kg3 Rxb2 0-1

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "6"]
[White "Maltseva, Aleksandra"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "1316"]
[BlackElo "1010"]
[PlyCount "37"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 d6 6. h3 Nf6 7. d4 exd4 8. Nxd4 Bd7 9. Nc3 Be7 10. Kh1 0-0 11. f4 d5 12. e5 Ne4 13. Nxe4 dxe4 14. Qe2 c5 15. Nb3 Bb5 16. c4 Bc6 17. Be3 f6 18. Nxc5 fxe5 19. Ne6 1-0

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "4"]
[White "Ser, Daniel"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1347"]
[BlackElo "1010"]
[PlyCount "71"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Nc6 4. Nd2 Bf5 5. c4 e6 6. a3 Be7 7. Ngf3 0-0 8. Be2 dxc4 9. Nxc4 a6 10. 0-0 b5 11. Nce5 Nxe5 12. Nxe5 Bd6 13. Rc1 Be4 14. Bf3 Bxf3 15. Qxf3 Bxe5 16. Bxe5 Nd5 17. e4 Ne7 18. Rxc7 Rc8 19. Rfc1 Rxc7 20. Rxc7 Ng6 21. Qg3 Nxe5 22. Qxe5 f6 23. Qxe6+ Kh8 24. Rd7 Qc8 25. g3 Re8 26. Qf7 Rg8 27. e5 fxe5 28. dxe5 Qc1+ 29. Kg2 Qc6+ 30. Qd5 Qg6 31. Rd8 Re8 32. Rxe8+ Qxe8 33. e6 h6 34. Qd7 Qa8+ 35. f3 Kh7 36. e7 1-0

[Event "Kaspersky op U16"]
[Site "Tornelo INT"]
[Date "2021.04.02"]
[Round "10"]
[White "Volovich, Julia"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1674"]
[BlackElo "1010"]
[PlyCount "43"]
[EventDate "2021.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 201 Extra"]
[Source "ChessBase"]
[SourceDate "2021.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nc6 6. Nf3 Bd7 7. Bxf6 Bxf6 8. cxd5 exd5 9. Nxd5 Bg4 10. Nxf6+ Qxf6 11. Be2 0-0-0 12. Qc2 Kb8 13. 0-0 Nb4 14. Qc5 Bxf3 15. Bxf3 Nd3 16. Qb5 Qa6 17. Qxa6 bxa6 18. a3 Rhe8 19. Rfd1 Nxb2 20. Rab1 Rd6 21. Rxb2+ Rb6 22. Rxb6+ 1-0

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.04"]
[Round "7"]
[White "Leon Bermudez, Marcelo"]
[Black "Khafif, Joseph"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1010"]
[PlyCount "44"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 d6 6. h3 Be6 7. Bxe6 fxe6 8. Ng5 h6 9. Nxe6 Qe7 10. Nxc5 dxc5 11. d3 0-0 12. Be3 Nd4 13. Nd5 Nxd5 14. exd5 Rad8 15. c3 Nf5 16. Qb3 Kh8 17. d6 cxd6 18. Bd2 Nh4 19. d4 Qf6 20. Qxb7 Qg6 21. Qd5 Rf3 22. Kh1 Qxg2# 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "5"]
[White "Balliram, Taydan"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1304"]
[BlackElo "1010"]
[PlyCount "120"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 0-0 6. Nbd2 d6 7. Re1 Bg4 8. h3 Bh5 9. Nf1 Nd4 10. Ng3 Bxf3 11. gxf3 Nd7 12. Kh2 Qf6 13. Kg2 Nb6 14. Be3 Nc8 15. c3 Nc6 16. Bxc5 dxc5 17. Rb1 N8e7 18. b4 Ng6 19. Rh1 Nh4+ 20. Kf1 cxb4 21. cxb4 Nd4 22. Rb2 Ndxf3 23. Re2 Qf4 24. Re3 Rad8 25. Nf5 Nxf5 26. exf5 Nd4 27. Rg1 Nxf5 28. Rg4 Nxe3+ 29. Ke2 Nxd1 30. Rxf4 Nb2 31. Rf3 Nxc4 32. dxc4 Rd4 33. Rc3 Rfd8 34. a3 e4 35. c5 c6 36. Rb3 Rd3 37. Rxd3 exd3+ 38. Kd2 b6 39. cxb6 axb6 40. a4 Rd4 41. b5 cxb5 42. axb5 Rb4 43. Kxd3 Rxb5 44. Kc4 Ra5 45. Kb4 Rh5 46. Kc3 Rxh3+ 47. Kd2 b5 48. Kc2 b4 49. Kb2 Kf8 50. Kc2 Ke7 51. Kb2 Kd6 52. Kc2 Kc5 53. f4 Kc4 54. f5 b3+ 55. Kb2 Rh2+ 56. Ka3 Kc3 57. f6 gxf6 58. Ka4 b2 59. Ka3 b1Q 60. Ka4 Ra2# 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "6"]
[White "Cortes, Adrian"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "E51"]
[BlackElo "1010"]
[PlyCount "75"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[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. Nf3 Nc6 5. e3 Bb4 6. Bd2 0-0 7. Be2 Be7 8. 0-0 Ne4 9. Bd3 Nxc3 10. Bxc3 dxc4 11. Bxc4 a6 12. Bd3 b5 13. Qc2 b4 14. Bd2 Bb7 15. Bxh7+ Kh8 16. Be4 Qd7 17. Rac1 Na5 18. Bxb7 Nxb7 19. Qxc7 Qxc7 20. Rxc7 Nd6 21. Rxe7 Nf5 22. Rb7 a5 23. e4 Nd6 24. Rd7 Nxe4 25. Re1 f5 26. a3 Rac8 27. axb4 Rc2 28. Be3 axb4 29. Ne5 Kg8 30. Ng6 Ra8 31. Nf4 Rxb2 32. Nxe6 Raa2 33. Rxg7+ Kh8 34. Rf1 b3 35. Rb7 Ra3 36. Bc1 Rb1 37. Bxa3 Rxf1+ 38. Kxf1 1-0

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.03"]
[Round "4"]
[White "Leon Bermudez, Marcelo"]
[Black "Muradali, Kyan"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "1010"]
[BlackElo "1164"]
[PlyCount "89"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 0-0 6. d3 h6 7. h3 d6 8. a3 Be6 9. Bxe6 fxe6 10. b4 Bb6 11. Na4 Qe7 12. Nxb6 axb6 13. Be3 d5 14. exd5 exd5 15. c3 Rfd8 16. d4 e4 17. Nh4 Qf7 18. Nf5 Kh7 19. f3 Ne7 20. Nxe7 Qxe7 21. fxe4 dxe4 22. Qb3 Nd5 23. Rae1 c6 24. c4 Nxe3 25. Rxe3 Rxd4 26. c5 bxc5 27. bxc5 Qxc5 28. Qxb7 Rd3 29. Qxa8 Qxe3+ 30. Kh1 Qg5 31. Qxc6 e3 32. a4 Ra3 33. Kh2 e2 34. Qc2+ Qg6 35. Qxe2 Rxa4 36. Qb5 Ra8 37. Qb7 Rd8 38. Qc7 Rd2 39. Qb7 Rc2 40. Rf4 Rc3 41. Kh1 Rc1+ 42. Kh2 Rc3 43. Kh1 Qg3 44. Qe4+ Qg6 45. Qb7 1/2-1/2

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "3"]
[White "Flanagan, Dylan"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C21"]
[WhiteElo "1279"]
[BlackElo "1010"]
[PlyCount "94"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 Nf6 5. e5 Qe7 6. Nxc3 d6 7. Nge2 dxe5 8. 0-0 Nc6 9. Re1 Bd7 10. Nf4 0-0-0 11. Ncd5 Nxd5 12. Nxd5 Qc5 13. Bb3 Be6 14. Be3 Qa5 15. Bd2 Qa6 16. Be3 Bb4 17. Rf1 Qa5 18. a3 Bc5 19. Bd2 Qa6 20. Nb4 Bxb4 21. axb4 Bxb3 22. Qxb3 Qe2 23. Be3 b6 24. Qxf7 Rhg8 25. Qe6+ Kb7 26. b5 Rge8 27. Qxc6+ Kb8 28. Qc3 Qxb5 29. Qa3 a5 30. Qc3 Rd3 31. Qc2 Qa6 32. Rfe1 Rdd8 33. Qb1 h5 34. Bg5 Rd7 35. Rd1 Rf7 36. Qg6 Ref8 37. Rd8+ Kb7 38. Rxf8 Rxf8 39. Qxg7 Rf5 40. Qh6 Qe2 41. Be3 Qxb2 42. Rf1 a4 43. Qg6 Rf8 44. Rd1 Qe2 45. Rf1 a3 46. Qg5 a2 47. Re1 Qxe1# 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.02"]
[Round "2"]
[White "Leon Bermudez, Marcelo"]
[Black "Diaz Guerrero, Jesus Daniel"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1010"]
[PlyCount "126"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 d6 5. h3 Be7 6. Be2 0-0 7. 0-0 Be6 8. Ng5 Bd7 9. Nf3 h6 10. Nd5 Be6 11. Nxe7+ Qxe7 12. Nh4 d5 13. Nf5 Bxf5 14. exf5 Qd7 15. Bg4 Kh8 16. Qf3 Nd4 17. Qg3 Rae8 18. Qh4 Nxf5 19. Bxf5 Qxf5 20. Bd2 b6 21. Rae1 e4 22. dxe4 Rxe4 23. Qg3 Rc8 24. Qd3 Qh7 25. Rxe4 Qxe4 26. Qa6 Qe8 27. Qxa7 Qd7 28. Qa3 Ne4 29. Be3 Rd8 30. Bf4 Nf6 31. Qg3 Nh5 32. Qh4 Nxf4 33. Qxf4 Re8 34. Rd1 Rd8 35. Qh4 b5 36. b3 Re8 37. c4 bxc4 38. bxc4 c6 39. cxd5 cxd5 40. Qb4 Ra8 41. Qb3 d4 42. Qf3 Rxa2 43. Qe4 Ra4 44. Rb1 Rc4 45. g4 Rc8 46. Rb4 d3 47. Rd4 Rc1+ 48. Kh2 Qc7+ 49. Kg2 Rc3 50. h4 Rc5 51. g5 hxg5 52. hxg5 Rxg5+ 53. Kf3 Rh5 54. Qa8+ Kh7 55. Qe4+ g6 56. Ke3 Rh3+ 57. f3 Qg3 58. Rxd3 Qe1+ 59. Kf4 Qg3+ 60. Ke3 Qe1+ 61. Kd4 Qb4+ 62. Ke5 Rh5+ 63. Kf4 Rh4+ 0-1

[Event "Wch FIDE Online U10 America qual"]
[Site "Tornelo INT"]
[Date "2020.12.01"]
[Round "1"]
[White "Condori Mamani, Neymar Daniel"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1232"]
[BlackElo "1010"]
[PlyCount "61"]
[EventDate "2020.12.01"]
[EventType "swiss (rapid)"]
[EventRounds "7"]
[EventCountry "ISS"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Re1 d6 7. c3 Bg4 8. h3 Bh5 9. Nbd2 Na5 10. Bb5 c6 11. Ba4 b5 12. Bc2 Nb7 13. b4 c5 14. a3 c4 15. dxc4 bxc4 16. Nxc4 Qc7 17. Qd3 Bxf3 18. gxf3 Nh5 19. Kh2 Qd8 20. Rg1 Bh4 21. Be3 Qf6 22. Qe2 Rac8 23. Rg4 h6 24. Bb3 Bg5 25. Rag1 Bxe3 26. Nxe3 Rxc3 27. Nd5 Qxf3 28. Nxc3 Qxc3 29. Rxg7+ Nxg7 30. Qg4 Qxb3 31. Qxg7# 1-0

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "1.3"]
[White "Gkavardinas, Antonios"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1294"]
[BlackElo "1010"]
[PlyCount "49"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. c3 d6 7. Re1 Bg4 8. h3 Bh5 9. Nbd2 a6 10. Nf1 b5 11. Bb3 Bg6 12. Ng3 Nh5 13. Bd5 Qd7 14. Nxh5 Bxh5 15. Bxc6 Qxc6 16. Nxe5 d5 17. Nxc6 Bxd1 18. Nxe7+ Kh8 19. Rxd1 dxe4 20. dxe4 Rae8 21. Be3 f6 22. Bc5 h6 23. Ng6+ Kh7 24. Nxf8+ Rxf8 25. Bxf8 1-0

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "3.3"]
[White "Izafatava, Kira"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1089"]
[BlackElo "1010"]
[PlyCount "53"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Belarus FIDE Academy"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "BLR"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Nf6 6. Nxc6 bxc6 7. Bxc5 d6 8. Bd4 Nxe4 9. Bxg7 Rg8 10. Qe2 d5 11. f3 Rxg7 12. fxe4 dxe4 13. Qxe4+ Be6 14. Nc3 Rg4 15. Qxc6+ Kf8 16. Qc5+ Kg8 17. h3 Qh4+ 18. Qf2 Rg3 19. 0-0-0 Qg5+ 20. Kb1 Rb8 21. Qxa7 Rb6 22. Qxc7 Rb4 23. Qd8+ Qxd8 24. Rxd8+ Kg7 25. Bd3 Rxg2 26. Be4 Rg3 27. Rd3 1-0

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "6.3"]
[White "Leon Bermudez, Marcelo"]
[Black "Karpinskaya, Aryna"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1010"]
[BlackElo "1213"]
[PlyCount "50"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Belarus Grodno"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "BLR"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bb4 5. 0-0 0-0 6. d3 d6 7. h3 Be6 8. Bxe6 fxe6 9. Ng5 Qe7 10. Nb5 h6 11. Nxc7 Qxc7 12. Nxe6 Qf7 13. Nxf8 Rxf8 14. c3 Bc5 15. b4 Bb6 16. Be3 d5 17. Bxb6 axb6 18. exd5 Nxd5 19. c4 Nf4 20. Qf3 Qg6 21. b5 Nd4 22. Qg4 Qxd3 23. Rad1 Qxc4 24. Qd7 Qd5 25. Qe7 Qxg2# 0-1

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "5.3"]
[White "Leon Bermudez, Marcelo"]
[Black "Makaula, Lubanzi"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1010"]
[PlyCount "75"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "South Africa KZN Academy"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "RSA"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. 0-0 0-0 6. d3 h6 7. h3 a6 8. Bd2 d6 9. Nh4 Na5 10. Nf5 Bxf5 11. exf5 Nxc4 12. dxc4 d5 13. cxd5 Nxd5 14. Ne4 Bd6 15. Qg4 Nf6 16. Nxf6+ Qxf6 17. Rae1 Rfe8 18. Bc3 b5 19. b4 c5 20. a3 a5 21. f4 axb4 22. axb4 cxb4 23. Bb2 Ra2 24. Ba1 Rxc2 25. Kh1 Qe7 26. fxe5 Bxe5 27. Bxe5 f6 28. Bd6 Qd7 29. Qg6 Rce2 30. Bxb4 Qc6 31. Qg4 R2e4 32. Qh5 R4e5 33. Rxe5 fxe5 34. f6 Re6 35. f7+ Kh7 36. f8Q Rg6 37. Qf2 e4 38. Qhf5 1-0

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "2.3"]
[White "Leon Bermudez, Marcelo"]
[Black "Perera, Kgs Sanujitha"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1010"]
[PlyCount "102"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Bahrain Chess Academy"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "BHN"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d3 c6 5. Bd2 Qc7 6. Nf3 Nf6 7. Be2 Bf5 8. 0-0 e6 9. d4 Be7 10. Ne5 Nbd7 11. Bf4 Qc8 12. Bh5 Nxh5 13. Qxh5 Nxe5 14. Bxe5 Bg6 15. Qf3 0-0 16. Ne2 Bxc2 17. Nf4 Bg6 18. Qg4 Qd7 19. h4 Bd6 20. h5 Bxe5 21. hxg6 Bxf4 22. gxh7+ Kxh7 23. Qxf4 Rh8 24. Rae1 Kg8 25. Re5 Kf8 26. Rg5 f6 27. Rg6 Kf7 28. Rg3 Rac8 29. Re1 Qd5 30. Qg4 g5 31. Rf3 Kg6 32. Rxe6 Rcf8 33. b4 Qxa2 34. Qe4+ Kg7 35. Re7+ Rf7 36. Rxf7+ Kxf7 37. Qe1 Qd5 38. Rd3 Qd6 39. g3 Qd5 40. f3 Qd7 41. Qf1 Qd6 42. Qf2 Qxb4 43. Rd1 a5 44. f4 gxf4 45. Qxf4 a4 46. Rf1 Qe7 47. d5 cxd5 48. Qxa4 Qe3+ 49. Kg2 Qe2+ 50. Rf2 Qe4+ 51. Rf3 Qxa4 0-1

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "7.3"]
[White "Mamedov, Aziz"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C57"]
[BlackElo "1010"]
[PlyCount "52"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Azerbaijan"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "AZE"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 Nf5 7. Qf3 Nd6 8. Bb3 Bg4 9. Qg3 Be7 10. Qxe5 0-0 11. Bc2 Re8 12. 0-0 Nc4 13. Qg3 Bd6 14. Qd3 Ne5 15. Qd4 h6 16. Ne4 Bf3 17. Nxf6+ Qxf6 18. g3 Be2 19. Be4 Bxf1 20. Kxf1 Qg5 21. f4 Qh5 22. fxe5 Bxe5 23. Qd3 Qxh2 24. Qf3 Bxg3 25. Qf5 Rxe4 26. Qf3 Re1# 0-1

[Event "Online Friendship U12"]
[Site "Tornelo INT"]
[Date "2020.11.21"]
[Round "4.3"]
[White "Olofsson, Lukas"]
[Black "Leon Bermudez, Marcelo"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1089"]
[BlackElo "1010"]
[PlyCount "70"]
[EventDate "2020.11.21"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BLR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]
[WhiteTeam "Sweden 4 Springare"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "SWE"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. d3 0-0 6. Bg5 Be7 7. Nd5 Nxd5 8. Bxe7 Ndxe7 9. Qd2 d6 10. h3 Be6 11. Bxe6 fxe6 12. Ng5 Qd7 13. 0-0-0 d5 14. Qe2 d4 15. h4 Nb4 16. Kb1 Qa4 17. a3 Nbc6 18. Nxe6 Rf6 19. Nxc7 Rc8 20. Nd5 Nxd5 21. exd5 Rcf8 22. f3 Na5 23. Qe4 Rf5 24. h5 h6 25. Rdf1 b5 26. Kc1 b4 27. axb4 Qxb4 28. b3 Qa3+ 29. Kd2 Qb2 30. Rc1 Nxb3+ 31. Ke2 Nxc1+ 32. Kf2 Qxc2+ 33. Kg3 Rg5+ 34. Kh4 Qf2+ 35. g3 Qxg3# 0-1

[Event "Pan American-ch Amateur U1700"]
[Site "San Jose"]
[Date "2019.10.23"]
[Round "2.34"]
[White "Leon Bermudez, Marcelo"]
[Black "Ramirez Campos, Juan Jose"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1020"]
[PlyCount "94"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. d4 cxd4 4. cxd4 d6 5. Nf3 g6 6. Bb5 Qa5+ 7. Nc3 Bd7 8. Bd2 Bg7 9. Nd5 Qd8 10. Bxc6 bxc6 11. Nc3 Nf6 12. 0-0 0-0 13. Re1 Rb8 14. Qc1 Qb6 15. Rb1 Rfc8 16. Bh6 Bh8 17. b3 Ng4 18. h3 Nxh6 19. Qxh6 Bg7 20. Qh4 Bf6 21. Ng5 h5 22. e5 Bxg5 23. Qxg5 Qxd4 24. Nd1 Bf5 25. Rb2 dxe5 26. Qxe7 Re8 27. Qf6 Re6 28. Qg5 f6 29. Qc1 Rd6 30. Ne3 Qf4 31. g3 Qf3 32. Nxf5 Qxf5 33. Qc4+ Kg7 34. Qc5 Qd7 35. Rbb1 Rb5 36. Qc2 Rbd5 37. Kg2 Rd2 38. Qe4 R6d4 39. Qf3 R2d3 40. Re3 e4 41. Qf4 g5 42. Qb8 Rxe3 43. fxe3 Rd2+ 44. Kg1 Qxh3 45. Qc7+ Kg6 46. Qg7+ Kxg7 47. Rb2 Qg2# 0-1

[Event "Pan American-ch Amateur U1700"]
[Site "San Jose"]
[Date "2019.10.23"]
[Round "1.9"]
[White "Reyes Aristizabal, Andres"]
[Black "Leon Bermudez, Marcelo"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1605"]
[BlackElo "1020"]
[PlyCount "109"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nc6 3. f4 Bf5 4. a3 Nf6 5. Nf3 e6 6. Bb5 Be7 7. Ne5 0-0 8. Bxc6 bxc6 9. Nxc6 Qd6 10. Ne5 Ne4 11. 0-0 Bf6 12. Bd2 Bxe5 13. fxe5 Qe7 14. Bb4 Qg5 15. Bxf8 Qxe3+ 16. Kh1 Nf2+ 17. Rxf2 Qxf2 18. Bc5 Bg4 19. Qc1 Bf3 20. gxf3 Qxf3+ 21. Kg1 Qg4+ 22. Kf1 Qf3+ 23. Kg1 Qg4+ 24. Kf2 Qf5+ 25. Ke2 Qe4+ 26. Qe3 Qg2+ 27. Kd3 Qf1+ 28. Kc3 Qc4+ 29. Kd2 Qf1 30. b3 Qg2+ 31. Qe2 Qg5+ 32. Kc3 Qh4 33. Nd2 Qh3+ 34. Kb2 Rb8 35. Rg1 g6 36. Nf3 Qf5 37. h4 Qh5 38. Rg5 Qh6 39. Be7 Qg7 40. h5 h6 41. Rg1 g5 42. Bxg5 Qh7 43. Bxh6+ Kh8 44. Bg7+ Kg8 45. h6 c6 46. Qg2 a5 47. Bf6+ Kf8 48. Qg7+ Qxg7 49. Rxg7 Ke8 50. Rg8+ Kd7 51. Rxb8 Kc7 52. Rf8 Kd7 53. Rxf7+ Kc8 54. h7 Kb8 55. h8Q# 1-0

