[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.30"]
[Round "7"]
[White "Herrera Gomez, Ivan Said"]
[Black "Sierra, Guillermo"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1148"]
[BlackElo "1394"]
[PlyCount "111"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 h6 4. h3 Nf6 5. d3 Bc5 6. Be3 Bxe3 7. fxe3 d6 8. Nc3 a6 9. 0-0 0-0 10. a3 b5 11. Ba2 Ne7 12. Qe1 Ng6 13. Qg3 c6 14. Qxg6 Be6 15. Bxe6 fxe6 16. Qg3 Qb6 17. Qf2 Qd8 18. d4 exd4 19. exd4 Nh7 20. Qd2 Qb6 21. Kh1 Ra7 22. e5 d5 23. Qd3 Rff7 24. Nd2 Ng5 25. Rxf7 Rxf7 26. Rf1 Qc7 27. Rxf7 Qxf7 28. Qf1 Qe7 29. Nb3 Qa7 30. Nc5 a5 31. h4 Nh7 32. Nxe6 Qe7 33. Qf5 Qxh4+ 34. Kg1 Qe1+ 35. Kh2 Qh4+ 36. Qh3 Qe7 37. Nc5 Ng5 38. Qf5 b4 39. axb4 axb4 40. Na2 Qe8 41. g4 Qe7 42. Kg2 Nh7 43. Qe6+ Qxe6 44. Nxe6 Kf7 45. Nxg7 Kxg7 46. Nxb4 Kg6 47. Nxc6 Ng5 48. Ne7+ Kf7 49. Nxd5 Ke6 50. c4 Ne4 51. Ne3 Ng5 52. b4 Nf7 53. b5 Nd8 54. Kg3 Nb7 55. Kf4 Nd8 56. d5+ 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.29"]
[Round "6"]
[White "Sierra, Guillermo"]
[Black "Ramos Espinoza, Efren Andres"]
[Result "0-1"]
[ECO "A03"]
[WhiteElo "1394"]
[BlackElo "2170"]
[PlyCount "44"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. d4 c5 5. Bg2 Nc6 6. c3 Nf6 7. 0-0 Ne4 8. Nbd2 cxd4 9. Nxe4 dxe4 10. Ne5 0-0 11. Bxe4 Nxe5 12. fxe5 Bxe5 13. Bd3 Bh3 14. Rf3 Bg4 15. Rf1 dxc3 16. bxc3 Bxc3 17. Rb1 Bd4+ 18. Kg2 Qd5+ 19. Rf3 Bxf3+ 20. exf3 Qxa2+ 21. Bc2 Rac8 22. Bh6 Rxc2+ 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.28"]
[Round "5"]
[White "Amelunge Moreno, Alan Alfredo"]
[Black "Sierra, Guillermo"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1394"]
[PlyCount "52"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 h6 5. 0-0 Be7 6. d3 d6 7. d4 exd4 8. Nxd4 Ne5 9. h3 0-0 10. Nf3 a6 11. Nxe5 dxe5 12. Nd5 b5 13. Nxe7+ Qxe7 14. Bb3 Nxe4 15. Qf3 Bb7 16. Qg4 Nf6 17. Qg3 Nh5 18. Qe3 Qf6 19. Qe2 Qg6 20. g3 Rfe8 21. Be3 Nf4 22. Qd2 Nxh3+ 23. Kh2 Qh5 24. g4 Qh4 25. c3 Nf4+ 26. Kg1 Qh1# 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.27"]
[Round "4"]
[White "Sierra, Guillermo"]
[Black "Fasta Menacho, Javier Jose"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1394"]
[PlyCount "118"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. Nf3 Nc6 4. e3 a6 5. Bd3 Bg4 6. Nbd2 e6 7. c3 Bd6 8. Bxd6 Qxd6 9. Qb3 b5 10. h3 Bh5 11. 0-0-0 0-0 12. g4 Bg6 13. Bxg6 hxg6 14. Qc2 e5 15. g5 e4 16. gxf6 exf3 17. fxg7 Kxg7 18. Nxf3 Rae8 19. h4 f5 20. h5 Ne7 21. hxg6 Nxg6 22. Rdg1 Re4 23. Ne5 Rf6 24. Qe2 Rxe5 25. dxe5 Qxe5 26. Qh5 Qe8 27. Qh7+ Kf8 28. Qxc7 b4 29. Qc5+ Kf7 30. Qxd5+ Re6 31. Qxf5+ Rf6 32. Rh7+ Kg8 33. Qxf6 Kxh7 34. Rh1+ Kg8 35. Rg1 Kh7 36. Qxg6+ Qxg6 37. Rxg6 Kxg6 38. cxb4 Kf5 39. Kd2 Ke5 40. a3 Kd5 41. Kd3 Kd6 42. Kd4 Ke6 43. f4 Kf5 44. b3 Kf6 45. Kd5 Ke7 46. e4 Kd7 47. f5 Ke7 48. e5 Kd7 49. f6 Ke8 50. Kd6 Kf8 51. e6 Ke8 52. f7+ Kf8 53. Kd7 a5 54. b5 a4 55. bxa4 Kg7 56. b6 Kf8 57. b7 Kg7 58. b8Q Kg6 59. Qg3+ Kh7 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.26"]
[Round "3"]
[White "Rodriguez Lopez, Jose Ivan"]
[Black "Sierra, Guillermo"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "1004"]
[BlackElo "1394"]
[PlyCount "93"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 Ne7 5. Bd3 Nec6 6. Ndf3 Be7 7. Ne2 0-0 8. 0-0 c4 9. Bc2 Nd7 10. e5 Re8 11. Re1 Nf8 12. Nf4 b5 13. a3 a5 14. Bd2 a4 15. h3 Na5 16. Rb1 f5 17. exf6 Bxf6 18. Nh5 Nb3 19. Nxf6+ Qxf6 20. Bg5 Qf7 21. Ne5 Qb7 22. Re3 Na5 23. Qh5 Bd7 24. Rf3 g6 25. Qh6 Bc6 26. Rf7 Qxf7 27. Nxf7 Kxf7 28. Re1 Nb3 29. Bxb3 axb3 30. Re3 e5 31. Rf3+ Ke6 32. Rf6+ Kd7 33. Qg7+ Re7 34. Rf7 Rxf7 35. Qxf7+ Kc8 36. Qxf8+ Kb7 37. Qe7+ Kc8 38. Bc1 exd4 39. cxd4 c3 40. bxc3 Bd7 41. Qxh7 Ra6 42. Qg8+ Kb7 43. Qxd5+ Kc8 44. Qxb3 Re6 45. Be3 g5 46. Bxg5 Re1+ 47. Kh2 1-0

