[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.06"]
[Round "9"]
[White "Sanchez Ramirez, Alfredo"]
[Black "Quiroga Jaquez, Angel Ivan"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1663"]
[BlackElo "2098"]
[PlyCount "105"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. a4 d6 7. Nc3 h6 8. Bd2 a6 9. a5 Kh8 10. Nd5 Nxd5 11. exd5 Nb8 12. d4 e4 13. Ne1 Bf5 14. f3 Nd7 15. fxe4 Bxe4 16. Ra3 Nf6 17. Rh3 Nh7 18. Nd3 Ng5 19. Rg3 Bh7 20. Bxg5 Bxg5 21. Nf4 Qe7 22. Re1 Qd7 23. Rf1 Rae8 24. c3 Re7 25. Ne6 Rfe8 26. Nxg5 hxg5 27. Qh5 Re1 28. Qxg5 Rxf1+ 29. Bxf1 f6 30. Qf4 Re4 31. Qd2 Re7 32. Rh3 Qg4 33. Rg3 Qh5 34. c4 Kg8 35. Re3 Be4 36. Qe2 Qe8 37. b3 f5 38. g3 Qg6 39. Qf2 Qf6 40. Rc3 g5 41. b4 f4 42. Bd3 Bxd3 43. Rxd3 Qf5 44. Rd1 Qg4 45. Re1 Rf7 46. Qc2 Kg7 47. Qe4 Qh5 48. Rf1 f3 49. h4 gxh4 50. gxh4 Kf8 51. Kh2 Rf5 52. Kg3 f2 53. Qxf5+ 1-0

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.05"]
[Round "7"]
[White "Sanchez Ramirez, Alfredo"]
[Black "Baeza, Patricio"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "1663"]
[BlackElo "1725"]
[PlyCount "45"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. 0-0 Bd7 10. h3 Nxd4 11. Bxd4 Bc6 12. Qc2 a5 13. Rad1 Nd7 14. Bxg7 Kxg7 15. Bg4 Nf6 16. e5 Nxg4 17. hxg4 Qc8 18. exd6 Bxg2 19. Kxg2 Qxg4+ 20. Kh2 Qh4+ 21. Kg2 Qg4+ 22. Kh2 Qh4+ 23. Kg2 1/2-1/2

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.05"]
[Round "8"]
[White "Zaragoza Alanis, Miguel Arnulfo"]
[Black "Sanchez Ramirez, Alfredo"]
[Result "0-1"]
[ECO "B36"]
[WhiteElo "1800"]
[BlackElo "1663"]
[PlyCount "90"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 0-0 10. Qd2 Be6 11. f3 Rc8 12. b3 d5 13. Rd1 dxe4 14. Qxd8 Rfxd8 15. Rxd8+ Rxd8 16. Nxe4 Nxe4 17. fxe4 Be5 18. Kf2 Kg7 19. h3 Kf6 20. Rd1 Rc8 21. Bg4 h5 22. Bxe6 Kxe6 23. Rd5 h4 24. Ke2 f6 25. Bxa7 Ra8 26. Ra5 Bc7 27. Ra4 b6 28. c5 b5 29. Ra6+ Kd7 30. c6+ Kc8 31. Ra3 Bb6 32. Ra6 Bxa7 33. a4 bxa4 34. b4 Rb8 35. Rxa7 Rxb4 36. Rxe7 a3 37. Kd3 Ra4 38. Re8+ Kc7 39. Re7+ Kxc6 40. Re6+ Kc5 41. Rxf6 a2 42. Rxg6 a1Q 43. Rg5+ Kb4 44. e5 Kc5 45. e6+ Kd6 0-1

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.04"]
[Round "6"]
[White "Hernandez Luna, Jose Angel"]
[Black "Sanchez Ramirez, Alfredo"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "1986"]
[BlackElo "1663"]
[PlyCount "78"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Rb8 7. Qc1 b5 8. Nce2 h5 9. h3 b4 10. Nf3 Qb6 11. 0-0 Nd4 12. Nexd4 cxd4 13. Bd2 Qc5 14. a3 a5 15. axb4 axb4 16. b3 Nf6 17. Nh4 Bb7 18. f4 Nd7 19. Ra2 Rg8 20. Qe1 Bc6 21. Qf2 Bf6 22. Nf3 Rg7 23. Kh2 Ra8 24. Rxa8+ Bxa8 25. Ra1 Bb7 26. Ra2 e5 27. Qe1 d5 28. Bxb4 Qc7 29. exd5 h4 30. g4 g5 31. fxe5 Nxe5 32. Nxe5 Bxe5+ 33. Kh1 Rg6 34. c4 dxc3 35. d4 Rb6 36. Ba5 c2 37. Rxc2 Qxc2 38. Bxb6 Qxb3 39. Qxe5+ Kd7 1-0

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.04"]
[Round "5"]
[White "Sanchez Ramirez, Alfredo"]
[Black "Ruiz Ortiz, Gabriel Abraham"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1663"]
[BlackElo "1760"]
[PlyCount "51"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. e3 e6 5. Nbd2 Bd6 6. Bd3 0-0 7. 0-0 Re8 8. Bxd6 Qxd6 9. Ne5 g6 10. Qe1 Nfd7 11. f4 f6 12. Bxg6 hxg6 13. Qg3 g5 14. fxg5 fxe5 15. Rf6 Nf8 16. Raf1 Qe7 17. g6 Qxf6 18. Rxf6 Re7 19. Qf2 Nbd7 20. h4 Nxf6 21. Qxf6 Rg7 22. h5 Bd7 23. Nf3 Nxg6 24. h6 Rf7 25. Qxg6+ Kf8 26. Nxe5 1-0

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.03"]
[Round "4"]
[White "Gonzalez Sanchez, Ilan Said"]
[Black "Sanchez Ramirez, Alfredo"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1640"]
[BlackElo "1663"]
[PlyCount "122"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 h5 6. Nf3 0-0 7. Nb5 Na6 8. c3 c5 9. Be2 cxd4 10. exd4 Bd7 11. Ne5 Bxb5 12. Bxb5 Nc7 13. Be2 Ne6 14. Be3 b5 15. g4 Qd6 16. gxh5 Ne4 17. Nd3 b4 18. h6 Bf6 19. Nxb4 Nf4 20. Bf3 Rab8 21. h7+ Kxh7 22. Bxe4 dxe4 23. Qg4 Nh5 24. Qxe4 Rxb4 25. cxb4 Qxb4+ 26. Kf1 Qxb2 27. Kg2 Qa3 28. Rad1 Rb8 29. Rd2 Rb6 30. d5 Rb4 31. Qf3 Qa4 32. Rhd1 Rxh4 33. Rh1 Rg4+ 34. Kf1 Qc4+ 35. Qe2 Qb4 36. a3 Qe4 37. f3 Qf5 38. Bf2 Rf4 39. Qd3 Qg5 40. Rg1 Qe5 41. Bg3 Nxg3+ 42. Rxg3 Rh4 43. Rg1 Qh5 44. Rdg2 Rd4 45. Qe2 Qxd5 46. Rh2+ Kg7 47. Ke1 Bh4+ 48. Rxh4 Rxh4 49. Qxe7 Qd4 50. Qg5 Rh2 51. Rg2 Rh1+ 52. Ke2 Qd1+ 53. Ke3 Qe1+ 54. Re2 Qc1+ 55. Rd2 Qxa3+ 56. Kf2 Rh5 57. Qf4 Qc5+ 58. Qd4+ Qxd4+ 59. Rxd4 Ra5 60. Rd7 g5 61. Kg3 Ra4 0-1

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.03"]
[Round "3"]
[White "Sanchez Ramirez, Alfredo"]
[Black "Gonzalez Zharikov, Andrey"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1663"]
[BlackElo "1925"]
[PlyCount "72"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Nf6 5. Qa4+ Nbd7 6. Nc3 g6 7. Bc4 Bg7 8. d3 0-0 9. Nf3 a6 10. Qa3 Nb6 11. Qb3 Bg4 12. Ne5 Bf5 13. f4 Qd6 14. Be3 Nbd7 15. Nxd7 Qxd7 16. Bb6 Qd6 17. 0-0 Nd7 18. Be3 b5 19. Bxb5 Rab8 20. a4 Bxc3 21. Rac1 axb5 22. axb5 Nf6 23. bxc3 Bxd3 24. c4 Bxf1 25. Kxf1 Rfc8 26. h3 Ne4 27. Qd3 Nc5 28. Qa3 Ra8 29. Bxc5 Qxf4+ 30. Ke2 Rxa3 31. Bxa3 Rxc4 32. Rxc4 Qxc4+ 33. Kf2 Qa2+ 34. Kg1 Qxa3 35. d6 exd6 36. b6 Qc5+ 0-1

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.02"]
[Round "2"]
[White "Hua, Eugene"]
[Black "Sanchez Ramirez, Alfredo"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2264"]
[BlackElo "1663"]
[PlyCount "47"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. 0-0 e6 7. e3 Nge7 8. d4 0-0 9. d5 exd5 10. cxd5 Nb4 11. e4 f5 12. Ng5 fxe4 13. Ngxe4 Bf5 14. a3 Na6 15. Bf4 Bxe4 16. Nxe4 Rxf4 17. gxf4 Nf5 18. Ng5 Qf6 19. Ne6 Nd4 20. Re1 c4 21. Rc1 Nxe6 22. dxe6 Nc5 23. Rxc4 Qxb2 24. Qxd6 1-0

[Event "North American-ch U20"]
[Site "Mexico City"]
[Date "2022.12.02"]
[Round "1"]
[White "Sanchez Ramirez, Alfredo"]
[Black "Francisco Cruz, Yahir Alberto"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "1663"]
[BlackElo "2056"]
[PlyCount "167"]
[EventDate "2022.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nf3 Be7 8. Bg5 Nbd7 9. a4 h6 10. Bh4 Qb6 11. b3 g5 12. Bg3 Qb4 13. Qd2 Nxe4 14. Nxe4 Qxe4 15. 0-0 Qg6 16. Bd3 e4 17. Bxe4 f5 18. Bxf5 Qxf5 19. Rfe1 Nf8 20. Bxd6 Rh7 21. Re5 Qf6 22. Rae1 Ng6 23. Bxe7 Rxe7 24. Rxe7+ Nxe7 25. Qd5 Bg4 26. Qg8+ Qf8 27. Qg6+ Qf7 28. Qxf7+ Kxf7 29. Ne5+ Kg7 30. Nxg4 Nc6 31. Rd1 h5 32. Rd7+ Kg6 33. Ne3 Rb8 34. Rd6+ Kg7 35. Nf5+ Kf7 36. f3 Nb4 37. c4 b5 38. Nh6+ Kg7 39. Nf5+ Kf7 40. axb5 axb5 41. Ng3 bxc4 42. bxc4 Rc8 43. Nxh5 Rxc4 44. Rf6+ Ke7 45. Kf2 Rh4 46. Rh6 Rxh2 47. Kg1 Rh4 48. Rb6 Nd5 49. Rb5 Rd4 50. Rb2 Kf7 51. Ng3 Nf4 52. Ne4 g4 53. Kh2 gxf3 54. Ng5+ Kg6 55. Nxf3 Ra4 56. Kg3 Nh5+ 57. Kh2 Nf4 58. g4 Ne6 59. Rb6 Kf7 60. Rb7+ Kf6 61. Kg3 Ra3 62. Rb5 Nd4 63. g5+ Kg6 64. Rb6+ Kg7 65. Rf6 Ne2+ 66. Kg4 Ra4+ 67. Kh3 Nf4+ 68. Kh2 Ra2+ 69. Kh1 Nh5 70. Rb6 Ng3+ 71. Kg1 Ne2+ 72. Kf2 Nd4+ 73. Ke3 Nxf3 74. Kxf3 Ra4 75. Kg3 Rc4 76. Kf3 Ra4 77. Kg3 Rc4 78. Rf6 Ra4 79. Rf4 Ra1 80. Kg4 Kg6 81. Rf6+ Kg7 82. Rb6 Rg1+ 83. Kf5 Rf1+ 84. Ke4 1/2-1/2

