[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "8"]
[White "Buker, Muhittin"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A78"]
[WhiteElo "1899"]
[BlackElo "2496"]
[PlyCount "86"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Nf3 d6 6. Be2 c5 7. d5 e6 8. 0-0 exd5 9. cxd5 Re8 10. Nd2 Na6 11. Re1 Nc7 12. a4 b6 13. Bf1 Rb8 14. Nc4 Ba6 15. Bf4 Bxc4 16. Bxc4 Nh5 17. Be3 Bxc3 18. bxc3 Rxe4 19. Be2 Rxe3 20. fxe3 Nf6 21. Bf3 Qe7 22. c4 a5 23. Rb1 Na6 24. e4 Nd7 25. Be2 Ne5 26. Bf1 Nb4 27. Qd2 Kg7 28. Kh1 f6 29. h3 Rf8 30. Kh2 Qd7 31. Rb3 Qxa4 32. Rg3 Qd7 33. h4 Qe7 34. h5 g5 35. Kg1 h6 36. Qf2 Qf7 37. Qf5 Qxh5 38. Qe6 Qh4 39. Rge3 Nc2 40. R1e2 Nxe3 41. Rxe3 Ng4 42. Rh3 Qf2+ 43. Kh1 Qxf1# 0-1

[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "9"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Contreras Huaman, Fiorella Daiana"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2496"]
[BlackElo "2012"]
[PlyCount "127"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 Bc5 7. 0-0 Nd7 8. Rd1 Bd4 9. Qg3 Ne7 10. d3 0-0 11. Bf1 f5 12. Ne2 Bf6 13. exd5 exd5 14. d4 Ng6 15. Nf4 Bh4 16. Qf3 Nxf4 17. Bxf4 Qf6 18. c3 Rae8 19. Re1 Qg6 20. Bd3 Nf6 21. Bd6 Ne4 22. Bxf8 Bxf2+ 23. Kh2 Bg3+ 24. Kg1 Bxe1 25. Rxe1 Rxf8 26. Qf4 Qf6 27. Rf1 g6 28. Qc7 Qf7 29. Qe5 Qg7 30. Qe6+ Qf7 31. Qe5 Qg7 32. Qf4 Qe7 33. Re1 Kg7 34. Re2 Rf7 35. Re1 Qf6 36. Rf1 Qg5 37. Qe5+ Qf6 38. Qf4 Qd6 39. Qe3 Qg3 40. Rf3 Qg5 41. Rf4 Qg3 42. Rxe4 fxe4 43. Qxg3 exd3 44. Qxd3 Re7 45. Kh2 b6 46. Qg3 Kf6 47. Qh4+ Ke6 48. Qf4 Rf7 49. Qe5+ Kd7 50. b4 Re7 51. Qf6 Re6 52. Qh8 Re7 53. b5 cxb5 54. Qf8 Kd6 55. Qf4+ Kd7 56. Qf6 Re6 57. Qf7+ Kd6 58. Qxa7 Kc6 59. Qa8+ Kc7 60. Qa7+ Kc6 61. Qxh7 b4 62. cxb4 Kb5 63. Qd7+ Kxb4 64. Qxe6 1-0

[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "7"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Harish, Neeraj"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2496"]
[BlackElo "2213"]
[PlyCount "33"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 e5 5. g3 d6 6. h3 0-0 7. Bg2 Nc6 8. 0-0 h6 9. Rb1 a5 10. a3 Nd7 11. b4 axb4 12. axb4 f5 13. Nh4 Qf6 14. Nd5 Qf7 15. Nxc7 Rb8 16. exf5 gxf5 17. Bd5 1-0

[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "11"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Mizzi, Jack"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2496"]
[BlackElo "2051"]
[PlyCount "172"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Bd6 7. Qe2+ Qe7 8. Qxe7+ Bxe7 9. 0-0 0-0 10. Re1 Bd6 11. d4 Bg4 12. Nd2 Nd7 13. Ne4 Bc7 14. c3 Rfe8 15. Bd2 Rad8 16. Ng3 Nf8 17. a3 Rxe1+ 18. Rxe1 Be6 19. Bf1 a5 20. Bc1 a4 21. Ne4 Nd7 22. Nd2 c5 23. Nf3 Bd5 24. Bb5 Bc6 25. Bxc6 bxc6 26. Be3 c4 27. Nd2 Nb6 28. g3 Kf8 29. f3 f5 30. Bf2 f6 31. Re6 Rd6 32. Rxd6 Bxd6 33. d5 c5 34. Kf1 Ke7 35. Ke2 Kd7 36. Kd1 Kc7 37. Kc2 Kb7 38. h3 Ka6 39. g4 g6 40. gxf5 gxf5 41. Bh4 Be5 42. d6 Bxd6 43. Bxf6 Bf4 44. Nf1 Nd5 45. Bh4 Kb7 46. Bf2 Kc6 47. Bg3 Bg5 48. Kb1 Ne3 49. Nh2 f4 50. Bf2 Kd5 51. Kc1 Nf5 52. Kd2 Ng3 53. Ke1 h5 54. Kd2 h4 55. Ng4 Nf5 56. Ke2 Ng3+ 57. Kd2 Nf5 58. Bg1 Nd6 59. Nf2 Nf5 60. Ne4 Be7 61. Bf2 Ng3 62. Bxg3 fxg3 63. Ke2 Ke5 64. Nd2 Kd5 65. Ne4 Bf8 66. Nf6+ Kc6 67. f4 Bh6 68. Nh5 Kd5 69. Kf3 Ke6 70. Kg2 Kf5 71. Kf3 Kg6 72. Nxg3 hxg3 73. Kxg3 Kf5 74. Kf3 Bxf4 75. Ke2 Bc1 76. Kd1 Bxb2 77. Kc2 Bxa3 78. Kb1 Kf4 79. Kc2 Kg3 80. Kb1 Kxh3 81. Ka2 Bc1 82. Kb1 Bh6 83. Ka2 Bg7 84. Ka3 Bxc3 85. Kxa4 Bb4 86. Kb5 c3 0-1

[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Novikova, Margarita"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2496"]
[BlackElo "1999"]
[PlyCount "83"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d4 c6 6. g3 Bg4 7. Bg2 e6 8. h3 Bh5 9. Bf4 Qd8 10. 0-0 Bd6 11. Bxd6 Qxd6 12. g4 Bg6 13. Qe2 Nbd7 14. Rad1 0-0-0 15. Ne5 Qc7 16. f4 Qb6 17. Na4 Qb4 18. b3 Nxe5 19. c3 Qa5 20. fxe5 Nd5 21. c4 Nb6 22. Nc5 Qc3 23. Rf3 Qb4 24. Kh2 h5 25. g5 Nd7 26. Ne4 Nxe5 27. dxe5 Rxd1 28. Qxd1 Bxe4 29. Rxf7 Rd8 30. Qf1 Qd2 31. Qf2 Qxf2 32. Rxf2 Bxg2 33. Kxg2 Rd3 34. Rf7 Re3 35. Rxg7 Rxe5 36. h4 Re2+ 37. Kg3 Rxa2 38. Rh7 Ra3 39. g6 Rxb3+ 40. Kf4 Rb1 41. g7 Rf1+ 42. Ke5 1-0

[Event "Titled Tuesday intern op 23rd Apr Late"]
[Site "Chess.com INT"]
[Date "2024.04.23"]
[Round "10"]
[White "Stillger, Bernhard"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2256"]
[BlackElo "2496"]
[PlyCount "47"]
[EventDate "2024.04.23"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CB18_2024"]
[SourceDate "2024.05.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.05.01"]
[SourceQuality "2"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 c5 5. Bg2 0-0 6. c4 Nc6 7. 0-0 d6 8. d4 cxd4 9. Nxd4 Qb6 10. Nc2 Be6 11. Nc3 Bxc4 12. bxc4 Qxb2 13. Nd5 Nxd5 14. cxd5 Ne5 15. Rb1 Qxa2 16. Rxb7 Rfe8 17. Nb4 Qb2 18. Qb1 Qxe2 19. Nc6 Nf3+ 20. Kh1 Nd2 21. Qd1 Qa6 22. Rc7 Nxf1 23. Bxf1 Qb6 24. Nxe7+ 0-1

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.31"]
[Round "9"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Espinosa Veloz, Ermes"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2496"]
[BlackElo "2484"]
[PlyCount "58"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Bd6 6. Bg2 Nge7 7. 0-0 0-0 8. Re1 Qc7 9. Nh4 b5 10. f4 f6 11. c3 Rb8 12. Qh5 d4 13. Ndf3 e5 14. Rf1 Bd7 15. fxe5 Nxe5 16. Nxe5 Bxe5 17. Bf4 Nc6 18. Rac1 Be6 19. a3 Qd7 20. Qe2 Rbd8 21. Nf3 dxc3 22. Bxe5 fxe5 23. Rxc3 c4 24. dxc4 Bxc4 25. Rxc4 bxc4 26. Qxc4+ Kh8 27. Rc1 Rc8 28. Ng5 Ne7 29. Nf7+ Rxf7 0-1

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.30"]
[Round "7"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Gracia Alvarez, Gerardo Antonio"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2496"]
[BlackElo "2233"]
[PlyCount "222"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. e3 dxc4 9. bxc4 c5 10. d3 Qc8 11. Qe2 Rd8 12. Nc3 Nc6 13. Ne1 a6 14. f4 Rb8 15. g4 b5 16. g5 Ne8 17. Rf3 Nd6 18. Rh3 g6 19. Ne4 Nxe4 20. Bxe4 e5 21. Qf3 bxc4 22. Bc3 cxd3 23. Bxd3 Rxd3 24. Nxd3 Nd4 25. Qf1 Ne2+ 26. Qxe2 Qxh3 27. Nxe5 Qf5 28. Qd3 Qh3 29. Qe2 Qf5 30. Qd3 Qh3 31. e4 Qxd3 32. Nxd3 c4 33. Nf2 Bc8 34. Rd1 Be6 35. Kf1 Bc5 36. Ke2 Kf8 37. h3 Bb4 38. Rb1 Bd6 39. Rxb8+ Bxb8 40. Ke3 Ke7 41. Ng4 Bxg4 42. hxg4 Kd7 43. e5 Ba7+ 44. Bd4 Bb8 45. Ke4 Bc7 46. Bc3 Bb6 47. a4 Kc6 48. Bd2 Bc5 49. f5 Bf2 50. Bb4 Kd7 51. Bd2 Bg3 52. Bf4 Be1 53. Kd4 c3 54. Kd3 Kc6 55. Ke2 Bh4 56. Kd1 Bf2 57. Kc2 Bd4 58. Kd3 Kd5 59. e6 fxe6 60. f6 e5 61. f7 e4+ 62. Ke2 Bg7 63. Ke3 Bd4+ 64. Ke2 Bc5 65. Be3 Bf8 66. Kd1 Bg7 67. Kc2 Ke6 68. Bd4 Bf8 69. Kxc3 Kxf7 70. Be3 Bg7+ 71. Bd4 h5 72. gxh6 Bxh6 73. Bg1 Bg7+ 74. Kc4 Ke6 75. Be3 Be5 76. Kc5 Bc3 77. Kc4 Be5 78. Kc5 Bc3 79. Kc4 Bb2 80. Bf4 Ba1 81. Kc5 Bc3 82. Kc4 Be5 83. Bd2 Kd6 84. Bb4+ Kc6 85. Bd2 Bf6 86. Bf4 Kb6 87. Bd2 Kc6 88. Bf4 Bb2 89. Be3 Be5 90. Bd2 Kd6 91. Be3 Ke6 92. Bd2 Bb2 93. Bf4 Bf6 94. Bd2 Kd6 95. Bf4+ Kc6 96. Be3 Bb2 97. Bf4 Kb6 98. Bd2 Ba1 99. Kd5 e3 100. Bxe3+ Ka5 101. Ke6 Kxa4 102. Kf7 Kb5 103. Bd2 a5 104. Bxa5 Kxa5 105. Kxg6 Kb6 106. Kf7 Kc7 107. g5 Kd7 108. g6 Bb2 109. Kf8 Ke6 110. g7 Bxg7+ 111. Kxg7 Ke5 1/2-1/2

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.30"]
[Round "8"]
[White "Tamame Soria, Cesar Manuel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "2227"]
[BlackElo "2496"]
[PlyCount "168"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. h3 g6 7. Be3 Bg7 8. Be2 0-0 9. 0-0 Bd7 10. Nb3 a5 11. a4 Nb4 12. f4 Bc6 13. Bf3 Nd7 14. Nd4 Nb6 15. b3 Rc8 16. Rc1 Bd7 17. Qd2 Na8 18. Nd5 Nc6 19. c4 Nxd4 20. Bxd4 Bxd4+ 21. Qxd4 Be6 22. Nc3 Rc5 23. Rcd1 Qb6 24. Rd3 f6 25. Nd5 Bxd5 26. exd5 Rc7 27. Re1 Kf7 28. Bg4 f5 29. Bd1 Qxd4+ 30. Rxd4 h5 31. Rd3 Rcc8 32. g4 hxg4 33. hxg4 Rh8 34. Kg2 Nc7 35. Rh3 Rxh3 36. Kxh3 e6 37. dxe6+ Nxe6 38. Kg3 Nd4 39. Bf3 fxg4 40. Bxb7 Rb8 41. Bd5+ Kf6 42. Kxg4 Rxb3 43. c5 Ra3 44. cxd6 Nf5 45. Bf3 Nxd6 46. Rd1 Nf5 47. Rc1 Ne3+ 48. Kg3 Rxa4 49. Rc6+ Kg7 50. Ra6 Nf5+ 51. Kf2 Rxf4 52. Rxa5 g5 53. Ra7+ Kf6 54. Ra6+ Kf7 55. Ra7+ Ke6 56. Ra6+ Ke7 57. Ra7+ Kd6 58. Ra6+ Kc7 59. Rg6 Nd4 60. Rxg5 Rxf3+ 61. Kg2 Rd3 62. Rg8 Kd6 63. Kf2 Ke5 64. Re8+ Kf4 65. Rf8+ Nf5 66. Ke2 Rd7 67. Re8 Ng3+ 68. Kf2 Ne4+ 69. Ke2 Rd2+ 70. Ke1 Rd3 71. Rh8 Rd7 72. Rh3 Re7 73. Ra3 Nc3+ 74. Kf2 Re2+ 75. Kf1 Rc2 76. Ra8 Ke3 77. Re8+ Ne4 78. Kg1 Rc6 79. Kg2 Rg6+ 80. Kh3 Kf3 81. Kh2 Rg2+ 82. Kh3 Rg3+ 83. Kh4 Rg4+ 84. Kh3 Nf2+ 0-1

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.29"]
[Round "5"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Hidalgo Diaz, Daniel"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2496"]
[BlackElo "2339"]
[PlyCount "78"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 Nbd7 7. Bb2 c6 8. Nc3 b6 9. d4 Ba6 10. Nd2 b5 11. e4 bxc4 12. bxc4 Nb6 13. e5 Nfd7 14. c5 Nc4 15. Nxc4 Bxc4 16. Re1 Rb8 17. Na4 Re8 18. Bc3 Bb5 19. Nb2 f5 20. Nd3 Qc8 21. Nb4 a5 22. Nc2 Ba4 23. Qd2 Qa6 24. Na3 Bd8 25. Bf1 Qa7 26. Rac1 Bc7 27. Bd3 Rf8 28. Kh1 Kh8 29. Rg1 Bd8 30. g4 f4 31. g5 g6 32. Rg4 Kg7 33. Rcg1 Be7 34. Nc2 Bxc2 35. Bxc2 Nxc5 36. dxc5 Bxc5 37. Rf1 Bb4 38. Rh4 Qc5 39. Qd3 Rb7 1-0

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.29"]
[Round "6"]
[White "Sanchez, Sebastian Felipe"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2400"]
[BlackElo "2496"]
[PlyCount "77"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. 0-0 Nc6 5. c4 Nf6 6. d4 cxd4 7. Nxd4 0-0 8. Nc3 Qb6 9. Nc2 d6 10. b3 Be6 11. e4 Rfc8 12. Nd5 Qd8 13. Bg5 Ng4 14. Rc1 Bh6 15. Bxh6 Nxh6 16. Qd2 Kg7 17. h3 f6 18. f4 Rab8 19. Nce3 Nf7 20. Rfd1 Qf8 21. b4 b6 22. a3 Ncd8 23. Qb2 Bd7 24. Rd2 Nb7 25. Bf1 Qd8 26. h4 a6 27. Rdc2 e6 28. Nc3 b5 29. cxb5 Qb6 30. Kf2 axb5 31. Kf3 Re8 32. Bh3 Bc6 33. Ncd5 Bxd5 34. exd5 e5 35. Be6 exf4 36. gxf4 Nbd8 37. Ng4 Nxe6 38. Qxf6+ Kg8 39. Qb2 1-0

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.28"]
[Round "3"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Czebe, Attila"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2496"]
[BlackElo "2344"]
[PlyCount "60"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 0-0 6. Bg2 Ne4 7. Bxb4 axb4 8. Qc2 d5 9. 0-0 Nc6 10. Rd1 Qf6 11. e3 Ra6 12. Nbd2 Nxd2 13. Nxd2 Rd8 14. Rdc1 Qe7 15. Nb3 Ra7 16. Nc5 b6 17. Nd3 dxc4 18. Qxc4 Ba6 19. Qb3 Bxd3 20. Qxd3 Nb8 21. Qc4 g6 22. Rd1 Nd7 23. Rd2 Nf6 24. Bc6 e5 25. Rad1 e4 26. Kg2 Ra5 27. d5 Ng4 28. d6 Rxd6 29. Rxd6 cxd6 30. Bxe4 d5 1-0

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.28"]
[Round "4"]
[White "Sanchez Enriquez, Oscar Gerardo"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2286"]
[BlackElo "2496"]
[PlyCount "81"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 h6 4. Bxf6 Qxf6 5. e4 g5 6. c3 Bg7 7. Na3 d6 8. Nc4 Qe7 9. Bd3 f5 10. Qe2 f4 11. e5 d5 12. Ncd2 Nd7 13. g4 fxg3 14. Bg6+ Kd8 15. fxg3 Nf8 16. Bh5 Bd7 17. 0-0 Be8 18. Ne1 Ng6 19. Nd3 Rf8 20. Rxf8 Bxf8 21. Rf1 Bg7 22. Qg4 b6 23. h4 Nh8 24. Bxe8 Kxe8 25. Nf3 Nf7 26. Qh5 Kd7 27. Nxg5 Nxg5 28. hxg5 Rf8 29. Rxf8 Bxf8 30. g6 Qg5 31. Qxg5 hxg5 32. Kg2 g4 33. Nf2 Ke8 34. Nxg4 Be7 35. Nf6+ Kf8 36. Nh5 c5 37. Nf4 Kg7 38. Nxe6+ Kxg6 39. Nf4+ Kf5 40. Kf3 Bg5 41. g4# 1-0

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.27"]
[Round "2"]
[White "Gonzalez Arroyo, Lenin"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B88"]
[WhiteElo "2189"]
[BlackElo "2496"]
[PlyCount "104"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. 0-0 Be7 8. Be3 0-0 9. Bb3 Na5 10. f4 Nxb3 11. axb3 Bd7 12. e5 Ne8 13. Qf3 Qc8 14. Rfd1 f6 15. Qg3 Kh8 16. Ne4 Qc7 17. exf6 gxf6 18. c4 Rg8 19. Qf2 a6 20. f5 e5 21. Ne2 b5 22. N2c3 Qb7 23. cxb5 Bxb5 24. Nxb5 Qxb5 25. Nc3 Qxb3 26. Nd5 Bd8 27. Qf3 Nc7 28. Nb6 Rb8 29. Ra3 Qxb2 30. Nc4 Qc2 31. Nxd6 Rg7 32. Kf1 Rxg2 33. Bh6 Rg7 34. Rad3 Re7 35. Qg4 Qa2 36. Qh5 Qg8 37. Rf3 Ne8 38. Rg3 Ng7 39. Qe2 Bc7 40. Qxa6 Rb6 41. Bxg7+ Rxg7 42. Rxg7 Rxa6 43. Rxg8+ Kxg8 44. Ne4 Kf8 45. Rd7 Rc6 46. Rxh7 Bd8 47. Ke2 Be7 48. Kd3 Rc1 49. Ng3 Rd1+ 50. Ke2 Rd4 51. Nh5 Rh4 52. Nxf6 Bxf6 0-1

[Event "Mexican op 69th"]
[Site "Mexico City"]
[Date "2024.03.26"]
[Round "1"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Vega Castaneda, Ulises Antonio"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2496"]
[BlackElo "1924"]
[PlyCount "49"]
[EventDate "2024.03.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB14_2024"]
[SourceDate "2024.04.01"]
[SourceVersion "1"]
[SourceVersionDate "2024.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. e3 e6 5. Nc3 Nf6 6. h3 Bxf3 7. Qxf3 Bb4 8. Bd3 e5 9. cxd5 Qxd5 10. Qxd5 Nxd5 11. Bd2 0-0-0 12. a3 exd4 13. axb4 dxc3 14. bxc3 Nxe3 15. Bxe3 Rxd3 16. b5 Nb8 17. Rxa7 Rhd8 18. 0-0 Rd1 19. Ra8 b6 20. Ra7 Rxf1+ 21. Kxf1 Re8 22. Bf4 Re7 23. f3 Rd7 24. Ke2 c5 25. Bxb8 1-0

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.12"]
[Round "9"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Gonzalez Zamora, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B70"]
[WhiteElo "2483"]
[BlackElo "2484"]
[PlyCount "112"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. 0-0 Bg7 8. Nb3 0-0 9. Re1 b6 10. Bf1 Bb7 11. Nd5 e6 12. Nxf6+ Bxf6 13. c3 Qc7 14. Bf4 e5 15. Bh6 Bg7 16. Qd2 Rad8 17. Bg5 f6 18. Bh4 Ne7 19. c4 h6 20. f3 g5 21. Bf2 f5 22. exf5 Nxf5 23. Bd3 Nh4 24. Be4 Bxe4 25. Rxe4 Ng6 26. a4 Nf4 27. a5 d5 28. cxd5 Rxd5 29. axb6 axb6 30. Qc3 Qf7 31. Rf1 Qg6 32. Kh1 Kh7 33. Qc2 Rf6 34. Rc4 Qd3 35. Nd2 e4 36. fxe4 Rd7 37. e5 Qxc2 38. Rxc2 Re6 39. h3 Nd3 40. Nf3 Nxf2+ 41. Rcxf2 Rd5 42. Re2 Kg6 43. Rfe1 b5 44. Re4 h5 45. g3 Bh8 46. Kg2 Bg7 47. R1e2 Bh8 48. b3 Bg7 49. Rd4 Rxd4 50. Nxd4 Rxe5 51. Rxe5 Bxe5 52. Nxb5 Kf5 53. Na3 g4 54. Nc4 Bd4 55. b4 Ke6 56. hxg4 hxg4 1/2-1/2

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.11"]
[Round "8"]
[White "Figueredo Losada, Leonel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B77"]
[WhiteElo "2373"]
[BlackElo "2483"]
[PlyCount "37"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 Qa5 9. f3 d6 10. Qd2 Nxd4 11. Bxd4 Be6 12. 0-0-0 Rfc8 13. Kb1 b5 14. Bxf6 Bxf6 15. Nd5 Qxd2 16. Nxf6+ Kg7 17. Nh5+ Kh6 18. Rxd2 Kxh5 19. Re1 1/2-1/2

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.11"]
[Round "7"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Diaz Rosas, Julio Cesar"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2483"]
[BlackElo "2343"]
[PlyCount "129"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. c3 Be7 7. Bf4 d6 8. N1d2 Nf6 9. Be2 0-0 10. 0-0 Re8 11. Re1 Bf8 12. Qc2 Bg4 13. Bxg4 Nxg4 14. h3 Nf6 15. Rad1 Nd7 16. Bg3 a5 17. a4 Qb8 18. Nd4 Be7 19. Nf5 Qa7 20. Nc4 Bf8 21. Na3 Rad8 22. Nb5 Qb8 23. Bh4 Rc8 24. f4 Nc5 25. Bf2 Ne6 26. Qd2 Rcd8 27. Ng3 Nc5 28. Qc2 Ne6 29. Nh5 b6 30. Rd3 Kh8 31. Rg3 Rd7 32. b4 f6 33. Qb3 Ncd8 34. Nd4 Rf7 35. Nxe6 Rxe6 36. f5 Re8 37. bxa5 Qa8 38. axb6 cxb6 39. Bxb6 d5 40. Rd1 Rb7 41. Rxd5 Nf7 42. Rb5 Rxe4 43. Bf2 Rxb5 44. axb5 Qe8 45. b6 Nh6 46. Qd5 Re5 47. Qd1 Bc5 48. Bxc5 Re1+ 49. Qxe1 Qxe1+ 50. Kh2 Qe5 51. Bd4 Qb8 52. Nxg7 Kg8 53. Be3 Ng4+ 54. hxg4 Kxg7 55. c4 Kf7 56. c5 Qc8 57. Rh3 Kg7 58. Bg1 Qc6 59. Kh1 Qe4 60. Rc3 Qb4 61. Rd3 Qxg4 62. b7 Qh4+ 63. Rh3 Qf4 64. c6 Qb8 65. Bh2 1-0

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.10"]
[Round "6"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2432"]
[BlackElo "2483"]
[PlyCount "62"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. h3 Nbd7 9. g4 h6 10. Qd2 b5 11. f3 b4 12. Na4 d5 13. exd5 Bxd5 14. Be2 Qc7 15. c4 bxc3 16. Nxc3 Bb4 17. Kf2 Qb7 18. Rhg1 Rc8 19. h4 Be6 20. Nb5 Bxd2 21. Nd6+ Ke7 22. Nxb7 Bxe3+ 23. Kxe3 Rc2 24. Rgc1 Rxb2 25. Kf2 Nd5 26. Kf1 h5 27. g5 Nf4 28. Bxa6 Ra8 29. N3c5 Bh3+ 30. Kg1 Rg2+ 31. Kf1 Rxa2+ 0-1

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.10"]
[Round "5"]
[White "Sandoval Mercado, Carlos"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2397"]
[BlackElo "2483"]
[PlyCount "156"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. e3 g6 4. Nc3 Bg7 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. b3 Be6 8. Bb2 Nd7 9. 0-0-0 Kc8 10. Ne4 h6 11. f4 f5 12. Nf2 Ngf6 13. Nf3 e4 14. Nd4 Bf7 15. g4 fxg4 16. Rg1 a6 17. Nxg4 Nxg4 18. Rxg4 c5 19. Ne2 Bxb2+ 20. Kxb2 Nf6 21. Rg1 Kc7 22. Nc3 Rad8 23. Bh3 b6 24. Kc2 Rhe8 25. a3 Rxd1 26. Rxd1 Re7 27. a4 Be8 28. Rg1 Kb7 29. Rd1 Kc7 30. Rg1 Bf7 31. Rd1 Re8 32. Rd2 Kc6 33. Rd1 Kc7 34. Rd2 Kc6 35. Kc1 Kc7 36. Rd1 Kc6 37. Rd2 Kc7 38. Kc2 Rf8 39. Bg2 Be6 40. Kd1 Bf5 41. Ke2 Kc6 42. Ke1 Re8 43. h3 Kc7 44. Ke2 Bd7 45. Ke1 Bc6 46. Bf1 Ng8 47. Nd5+ Kb7 48. Rg2 Bxd5 49. cxd5 Nf6 50. Rxg6 Nxd5 51. Kf2 Re7 52. Rxh6 Nc3 53. Bc4 b5 54. axb5 axb5 55. Be6 Kc7 56. f5 Kd6 57. Bg8+ Ke5 58. f6 Re8 59. f7 Rf8 60. Rc6 Nd5 61. Rxc5 b4 62. Ra5 Kd6 63. Ra6+ Ke7 64. Kg3 Nxe3 65. Kf4 Nf1 66. Ke5 Rd8 67. Kxe4 Nd2+ 68. Ke3 Kf8 69. Rb6 Nxb3 70. Rxb4 Na5 71. h4 Nc6 72. Re4 Ne7 73. Rg4 Rd5 74. Ke4 Rh5 75. Kf4 Rh8 76. Ke5 Nxg8 77. fxg8Q+ Rxg8 78. Rxg8+ Kxg8 1/2-1/2

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.09"]
[Round "3"]
[White "Limon Olmos, Ivan Alonso"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "2152"]
[BlackElo "2483"]
[PlyCount "129"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. Rb1 Nxd4 11. Bxd4 Bc6 12. Qd3 a5 13. b3 Nd7 14. Rfd1 f5 15. Bxg7 Kxg7 16. Qd4+ Rf6 17. exf5 gxf5 18. Rd3 e5 19. Rg3+ Kh8 20. Qh4 Qf8 21. Rh3 Qg7 22. Rg3 Qf8 23. Rh3 Qf7 24. Rd1 Rg8 25. Nd5 Rfg6 26. Rg3 f4 27. Rxg6 Qxg6 28. Bf3 Qg5 29. Qxg5 Rxg5 30. Be4 Nc5 31. f3 Ne6 32. Nc3 Nd4 33. Kf2 Kg7 34. g3 Rh5 35. Kg2 fxg3 36. hxg3 Rh6 37. Rd2 Kf7 38. Ne2 Ne6 39. Bd5 Ke7 40. Bxe6 Kxe6 41. Nc3 Kf5 42. Nd5 Ke6 43. Nc7+ Kd7 44. Nd5 b5 45. cxb5 Bxb5 46. g4 Bc6 47. Nb6+ Kc7 48. Nd5+ Kb7 49. a3 Re6 50. Kf2 Rh6 51. Kg2 Re6 52. Kf2 h5 53. gxh5 Be8 54. Ne3 Bxh5 55. Nc4 Kc7 56. Ne3 Bf7 57. Nd5+ Kc6 58. b4 axb4 59. axb4 Rh6 60. Ne7+ Kd7 61. Nf5 Rf6 62. Ne3 Bh5 63. Nc4 Kc7 64. Rd3 e4 65. Rxd6 0-1

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.09"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sanchez Enriquez, Oscar Gerardo"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2483"]
[BlackElo "2297"]
[PlyCount "20"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 Bd6 9. 0-0 c6 10. h3 Qc7 1-0

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.08"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Gracia Alvarez, Gerardo Antonio"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2483"]
[BlackElo "2201"]
[PlyCount "56"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. g3 h6 5. Bg2 Bd6 6. Qc2 0-0 7. Nbd2 c5 8. dxc5 Bxc5 9. 0-0 Bb6 10. c5 Bc7 11. e4 Nc6 12. a3 a5 13. b3 d4 14. Rb1 e5 15. b4 axb4 16. axb4 Be6 17. b5 Ne7 18. b6 Bb8 19. Ne1 Nc6 20. Nd3 Qe7 21. Bb2 Rc8 22. Ra1 Rxa1 23. Rxa1 h5 24. h3 h4 25. g4 Nh7 26. Ra8 Ng5 27. Nc4 Bd7 28. Ba3 Ne6 1/2-1/2

[Event "MEX-ch"]
[Site "Mexico City"]
[Date "2023.11.07"]
[Round "1"]
[White "Navarro Segura, Roberto"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B62"]
[WhiteElo "2055"]
[BlackElo "2483"]
[PlyCount "94"]
[EventDate "2023.11.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Be2 Be7 8. 0-0 0-0 9. Qd2 h6 10. Bh4 Nxd4 11. Qxd4 Nxe4 12. Nxe4 Bxh4 13. Qxd6 f5 14. Qxd8 Rxd8 15. Nc5 b6 16. Nb3 e5 17. Rad1 Be6 18. Rxd8+ Rxd8 19. Rd1 Rc8 20. c3 Kf7 21. Kf1 g6 22. Nc1 Be7 23. Bb5 h5 24. Bd7 Bc4+ 25. Ke1 Rc7 26. Ba4 Kf6 27. Rd7 Rxd7 28. Bxd7 h4 29. h3 Bd5 30. Kf1 Bf8 31. b3 Bh6 32. Nd3 Be4 33. Bb5 Bd2 34. f3 Bb7 35. c4 g5 36. c5 Bc3 37. c6 Bc8 38. Bc4 a6 39. a4 a5 40. Ke2 Ke7 41. Bb5 Kd6 42. Nf2 Be6 43. Bc4 Bxc4+ 44. bxc4 Kxc6 45. Nd3 Bd4 46. Kd2 e4 47. fxe4 fxe4 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.09"]
[Round "9"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Bruzon Batista, Lazaro"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2493"]
[BlackElo "2611"]
[PlyCount "80"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. 0-0 Be7 5. d3 0-0 6. Nbd2 c5 7. e4 Nc6 8. e5 Nd7 9. Re1 Qc7 10. Qe2 b5 11. Nf1 Bb7 12. h4 Rfc8 13. c3 Rab8 14. h5 h6 15. Bf4 Qd8 16. g4 Nf8 17. Qd2 Nh7 18. Bg3 d4 19. c4 bxc4 20. dxc4 a5 21. a4 Ba6 22. Qc1 Qb6 23. Qf4 Bxc4 24. N1d2 Bd5 25. Ne4 Nb4 26. g5 Bxe4 27. Qxe4 hxg5 28. Nd2 c4 29. Rec1 c3 30. bxc3 Rxc3 31. Nc4 Qc5 32. Rxc3 dxc3 33. Nd6 c2 34. Rc1 Qc3 35. Nxf7 Nf8 36. h6 Kxf7 37. h7 Ng6 38. Bh3 Nf4 39. Bxe6+ Kxe6 40. Bxf4 Qd3 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.08"]
[Round "7"]
[White "Fernandez Reyes, Lisandro"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2326"]
[BlackElo "2493"]
[PlyCount "136"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. Nf3 c5 4. e3 Nc6 5. Nbd2 Nh5 6. Be5 f6 7. Bg3 Qb6 8. dxc5 Qxb2 9. Rb1 Qc3 10. Bb5 Qxc5 11. c4 a6 12. Nb3 Qb4+ 13. Nbd2 Qc5 14. Nb3 Qb6 15. Bxc6+ bxc6 16. cxd5 Bf5 17. Rc1 Qb4+ 18. Nfd2 Nxg3 19. hxg3 cxd5 20. Nd4 Bg6 21. Ne6 Kf7 22. Nf4 Bf5 23. Qh5+ g6 24. Nxg6 Bxg6 25. Qxd5+ e6 26. Qxa8 Qxd2+ 27. Kxd2 Bb4+ 28. Ke2 Rxa8 29. Rc7+ Kg8 30. Rd1 Be8 31. f3 e5 32. g4 a5 33. Rd5 h6 34. f4 exf4 35. exf4 Bf7 36. Rdd7 Re8+ 37. Kf3 Bxa2 38. Rg7+ Kf8 39. Rh7 Bd5+ 40. Kg3 Re3+ 41. Kh4 Bg8 42. Rh8 Re8 43. Rxh6 Be7 44. Ra7 Bd8 45. Rh8 Re7 46. Ra8 Rd7 47. Rh5 Bd5 48. Rh8+ Bg8 49. Rh5 Bd5 50. Rh8+ Ke7 51. Rh7+ Ke6 52. Ra6+ Rd6 53. Raa7 Bxg2 54. Kh5 Bf3 55. f5+ Ke5 56. Rhd7 Rxd7 57. Rxd7 Bb6 58. Rd3 Ke4 59. Rd6 Bd4 60. Kh4 a4 61. g5 Bf2+ 62. Kh3 fxg5 63. f6 g4+ 64. Kh2 g3+ 65. Kh3 g2 66. Re6+ Kd5 67. f7 g1Q 68. Rd6+ Ke5 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.08"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Leon Valdes, Jony Wilson"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2493"]
[BlackElo "2331"]
[PlyCount "99"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c6 3. Bg2 d5 4. 0-0 g6 5. b3 Bg7 6. Bb2 0-0 7. d3 a5 8. a4 Bg4 9. h3 Bxf3 10. Bxf3 Re8 11. Nd2 e5 12. e4 d4 13. Bg2 Nbd7 14. Qe1 c5 15. Nc4 Nh5 16. Bf3 Nhf6 17. Bc1 h5 18. Bd2 b6 19. Be2 Qe7 20. f4 Nh7 21. g4 hxg4 22. Bxg4 Rab8 23. Bxd7 Qxd7 24. Qg3 Bh6 25. fxe5 Bxd2 26. Nxd2 Qe7 27. Nc4 Qg5 28. Qxg5 Nxg5 29. Kg2 Nh7 30. Rf4 Re7 31. Raf1 Rbb7 32. Nd6 Rbc7 33. h4 Kg7 34. h5 Kg8 35. hxg6 fxg6 36. Nc4 Rc6 37. Kg3 Rce6 38. Kg4 Rc6 39. Rf6 Nxf6+ 40. exf6 Rh7 41. Ne5 Rd6 42. Nxg6 Re6 43. e5 Kf7 44. Kg5 Rh2 45. Rg1 Re8 46. Kf5 Rh5+ 47. Rg5 Rxg5+ 48. Kxg5 Ke6 49. Nf4+ Kxe5 50. f7 1-0

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.07"]
[Round "5"]
[White "Morales Garcia, Sergio Joshafatt"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A68"]
[WhiteElo "2232"]
[BlackElo "2493"]
[PlyCount "84"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 a6 7. a4 g6 8. f4 Bg7 9. Nf3 0-0 10. Bd3 Re8 11. 0-0 Bg4 12. h3 Bxf3 13. Qxf3 Qc7 14. Be3 Nbd7 15. Kh1 Re7 16. Bf2 Rae8 17. Rab1 c4 18. Bc2 Rb8 19. Bh4 Ree8 20. Rbe1 b5 21. axb5 axb5 22. e5 dxe5 23. f5 Kh8 24. Ne4 Nxd5 25. f6 Bh6 26. Ng5 N7xf6 27. Rd1 e4 28. Nxe4 Nxe4 29. Rxd5 f5 30. Bxe4 Rxe4 31. Bg3 Qb7 32. Rfd1 Rbe8 33. Rd7 Qb6 34. Qc3+ Kg8 35. R1d6 Qe3 36. Qf6 Rf8 37. Qc3 f4 38. Bh4 Qxc3 39. bxc3 f3 40. Bg3 fxg2+ 41. Kg1 Re2 42. Kh2 Be3 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.07"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Perez Garcia, Rodney Oscar"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2493"]
[BlackElo "2323"]
[PlyCount "67"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 d6 3. d4 exd4 4. Qxd4 Nc6 5. Qd2 Nf6 6. b3 Be6 7. e4 a5 8. Nf3 a4 9. Rb1 axb3 10. axb3 Be7 11. Be2 0-0 12. 0-0 Ng4 13. h3 Nge5 14. Nh2 f5 15. f4 Nd7 16. g4 fxe4 17. f5 Bf7 18. g5 e3 19. Qxe3 d5 20. Qg3 Nd4 21. Ng4 Bxg5 22. f6 Nxe2+ 23. Nxe2 Bxf6 24. Nf4 Bd4+ 25. Kh1 Nf6 26. Be3 Bxe3 27. Nxe3 Qd7 28. Rg1 Nh5 29. Qg2 d4 30. Ng4 Be8 31. Ne5 Nxf4 32. Nxd7 Nxg2 33. Nxf8 Nf4 34. Rg3 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.06"]
[Round "3"]
[White "Garcia Guerrero, Isaac Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2307"]
[BlackElo "2493"]
[PlyCount "94"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c3 g6 4. Bf4 Nh5 5. Be5 f6 6. Bg3 c5 7. e3 Qb6 8. Qb3 Nxg3 9. hxg3 c4 10. Qc2 Bf5 11. Qc1 Bg7 12. Nbd2 Nc6 13. e4 dxe4 14. Nxc4 Qc7 15. Nfd2 h5 16. Ne3 Bh6 17. Nxf5 gxf5 18. Qd1 0-0-0 19. Nc4 e3 20. Qf3 exf2+ 21. Kxf2 e5 22. Qxf5+ Kb8 23. Kg1 b5 24. Na3 Be3+ 25. Kh2 h4 26. Nxb5 hxg3+ 27. Kxg3 Qg7+ 28. Kf3 Rxh1 29. Kxe3 Qg3+ 30. Qf3 Qxf3+ 31. gxf3 a6 32. Na3 exd4+ 33. cxd4 Nxd4 34. Rb1 Nf5+ 35. Kf4 Rd5 36. Ke4 Re5+ 37. Kd3 Re3+ 38. Kc4 Rxf1 39. Rxf1 Rxa3 40. Rf2 Re3 41. b4 Nh4 42. Kc5 Nxf3 43. Kd6 Kb7 44. a4 f5 45. Rg2 Rd3+ 46. Kc5 Rd7 47. Rg6 Nd2 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.06"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sandoval Mercado, Carlos"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2493"]
[BlackElo "2291"]
[PlyCount "150"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Re8 8. Nge2 c6 9. Qc2 Nbd7 10. f3 b5 11. 0-0 Nf8 12. Bh4 g6 13. a3 Ne6 14. Rad1 Bd7 15. e4 dxe4 16. fxe4 Ng4 17. Bxe7 Qxe7 18. Qd2 Qg5 19. Rf3 Qxd2 20. Rxd2 c5 21. Nd5 cxd4 22. Rg3 Ne5 23. Nf6+ Kg7 24. Nxe8+ Bxe8 25. Rd1 Rd8 26. Bb1 Bc6 27. Ba2 Nc4 28. Bxc4 bxc4 29. e5 Ba4 30. Rd2 d3 31. Nc3 Bc2 32. Rg4 Nd4 33. Rf4 Nb3 34. Rdf2 Rd7 35. Rxc4 d2 36. Rc6 d1Q+ 37. Nxd1 Bxd1 38. Rd6 Rxd6 39. exd6 Bg4 40. Rc2 Kf6 41. Rf2+ Kg7 42. Rf4 Be6 43. Rf3 Nd4 44. Rd3 Nc6 45. d7 Nd8 46. Rc3 Kf6 47. Rc8 Ke7 48. Ra8 Kxd7 49. Rxa7+ Kd6 50. b4 Nc6 51. Ra8 Kc7 52. b5 Nb8 53. Ra4 Kb6 54. Rh4 h5 55. Rd4 Nd7 56. a4 Ka5 57. Kf2 Nb6 58. Kg3 Nxa4 59. Kf4 Kxb5 60. Ke5 Nb6 61. Rd1 Kc6 62. Kf6 Nd5+ 63. Kg7 Kd6 64. Re1 Nf4 65. g3 Nd5 66. Re2 Ke7 67. Ra2 Kd6 68. Re2 Ke7 69. Ra2 Ne3 70. Ra7+ Bd7 71. Rxd7+ Kxd7 72. Kxf7 g5 73. h4 g4 74. Kg6 Ke6 75. Kxh5 Kf5 0-1

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.05"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Garcia De Dios, Jose Antonio"]
[Result "1-0"]
[ECO "C19"]
[WhiteElo "2493"]
[BlackElo "2148"]
[PlyCount "83"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 b6 8. Bb5+ Bd7 9. Bd3 c4 10. Be2 Ba4 11. 0-0 h6 12. g3 Kd7 13. Nh4 Nbc6 14. f4 g6 15. Ng2 Kc7 16. Be3 b5 17. Bf2 h5 18. h3 a5 19. Qd2 Qd7 20. Nh4 Rhb8 21. Rfb1 Rh8 22. Nf3 Nb8 23. g4 hxg4 24. hxg4 Na6 25. Bh4 Rhb8 26. Kg2 Rb6 27. Rh1 Ng8 28. Bf6 Rf8 29. Rh7 Kb8 30. Bg7 Re8 31. Ng5 Rb7 32. Rah1 b4 33. axb4 axb4 34. Ra1 Qb5 35. Kg3 Rc8 36. cxb4 Nxb4 37. c3 Nd3 38. Bh8 Rf8 39. Qa2 Qb2 40. Qxa4 Qxe2 41. Qa8+ Kc7 42. Nxe6+ 1-0

[Event "Mexican op 68th"]
[Site "Mexico City"]
[Date "2023.04.04"]
[Round "1"]
[White "Encinas Varela, David"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "1945"]
[BlackElo "2493"]
[PlyCount "86"]
[EventDate "2023.04.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. f4 Bd7 9. 0-0-0 h6 10. Bxf6 Qxf6 11. Nb3 Qd8 12. Kb1 Qc7 13. Bd3 0-0-0 14. f5 Be7 15. Qf2 Kb8 16. Na4 Ne5 17. Nb6 Bc6 18. Na5 Ng4 19. Qd4 Bf6 20. Qb4 Ka7 21. Nxc6+ Qxc6 22. Nc4 Nf2 23. fxe6 fxe6 24. Rhf1 Nxd1 25. Rxd1 d5 26. exd5 exd5 27. Ne3 Qb6 28. Qxb6+ Kxb6 29. Bg6 Kc5 30. c3 d4 31. b4+ Kb6 32. cxd4 Rxd4 33. Nd5+ Ka7 34. Rxd4 Bxd4 35. Kc2 Rf8 36. Kd3 Bg1 37. a4 Bxh2 38. b5 Rf2 39. b6+ Kb8 40. Be4 Ra2 41. Ne7 Rxa4 42. Nf5 Bg1 43. Nxg7 Rd4+ 0-1

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.17"]
[Round "9"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2441"]
[BlackElo "2530"]
[PlyCount "81"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e4 c5 6. Nge2 Nc6 7. 0-0 d6 8. a3 Ne8 9. Rb1 Nc7 10. b4 Ne6 11. d3 Ned4 12. Nxd4 Nxd4 13. Ne2 b6 14. Nxd4 Bxd4 15. Bb2 e5 16. Bxd4 cxd4 17. f4 Rb8 18. f5 f6 19. h4 Rb7 20. Kh2 Rg7 21. Rc1 Kh8 22. fxg6 hxg6 23. c5 dxc5 24. bxc5 bxc5 25. Rxc5 Qd6 26. Qc1 Be6 27. Rc6 Qe7 28. Bh3 Bxh3 29. Kxh3 Kh7 30. g4 Rgf7 31. Rf2 Kg7 32. Rfc2 Qd7 33. Kg3 Qd8 34. R2c5 Qb8 35. Qc2 Qd8 36. Rd5 Qe7 37. Rdd6 Re8 38. g5 fxg5 39. Rxg6+ Kf8 40. Rxg5 Qxa3 41. Rcg6 1-0

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.16"]
[Round "7"]
[White "Cori, Jorge Moise"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2652"]
[BlackElo "2530"]
[PlyCount "52"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. Nf3 d6 6. 0-0 e6 7. a3 Nge7 8. Rb1 0-0 9. b4 b6 10. Bb2 Bb7 11. Ba1 Qd7 12. d3 Rad8 13. e3 Ne5 14. Nxe5 Bxe5 15. Qe2 Bxg2 16. Kxg2 Bg7 17. Rfd1 cxb4 18. axb4 d5 19. cxd5 Nxd5 20. Nxd5 Qxd5+ 21. Qf3 Qb5 22. Bxg7 Kxg7 23. d4 Rd7 24. Rdc1 e5 25. dxe5 Qxe5 26. Rc6 Re8 1/2-1/2

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.16"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2530"]
[BlackElo "2519"]
[PlyCount "169"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. Nd2 Qe6 10. Qe4 a5 11. Be2 Bb4 12. a3 Bxd2+ 13. Bxd2 Ba6 14. Bxa5 Bxc4 15. Bxb6 Bd5 16. Qe3 cxb6 17. 0-0 0-0 18. Rfe1 f6 19. Bd3 Rae8 20. exf6 Qxf6 21. Qd2 Bf7 22. Qc2 g6 23. Rxe8 Rxe8 24. Qc3 Qxc3 25. bxc3 b5 26. Kf1 Bb3 27. Rb1 Bd5 28. f3 Kf7 29. Re1 Ra8 30. Ra1 Kf6 31. Ke2 Ra4 32. g3 h6 33. h4 g5 34. hxg5+ hxg5 35. Ke3 Ke5 36. Be2 Ra8 37. Kd2 Be6 38. Bd1 d5 39. Bc2 Rh8 40. f4+ gxf4 41. Re1+ Kf6 42. gxf4 Rh4 43. a4 bxa4 44. Bxa4 c5 45. Rf1 Rh2+ 46. Kc1 Ra2 47. Bd1 Bf5 48. Rh1 Be4 49. Rh6+ Kf5 50. Bb3 Ra1+ 51. Kb2 Rb1+ 52. Ka2 c4 53. Ba4 Rb8 54. Ka3 Kxf4 55. Rh3 Rb6 56. Be8 Bd3 57. Bf7 Rb3+ 58. Ka2 Bb1+ 59. Ka1 Be4 60. Ka2 Rb7 61. Be8 Rb6 62. Bf7 Rf6 63. Be8 Bf5 64. Rh1 Ke3 65. Ka3 Rb6 66. Bf7 Be4 67. Rd1 Rb3+ 68. Ka2 Bf3 69. Re1+ Kd2 70. Re5 Rb7 71. Bg8 Kc2 72. Ka3 Rb3+ 73. Ka4 Rxc3 74. Bxd5 Bxd5 75. Rxd5 Rd3 76. Rh5 c3 77. Ka3 Kc1 78. Rh1+ Rd1 79. Rh2 c2 80. Ka2 Rd8 81. Rh1+ Kd2 82. Rh2+ Kc3 83. Rh3+ Rd3 84. Rh1 Rd1 85. Rh4 0-1

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.15"]
[Round "6"]
[White "Perez Gormaz, Matias Ariel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2388"]
[BlackElo "2530"]
[PlyCount "42"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nf3 Nf6 4. c3 c5 5. d4 Nc6 6. dxc5 Qxc5 7. Na3 e6 8. Nb5 Qe7 9. Bg5 a6 10. Qa4 Rb8 11. Nbd4 Bd7 12. 0-0-0 Rc8 13. Nxc6 Bxc6 14. Qh4 h6 15. Ne5 hxg5 16. Qxh8 Ne4 17. Bd3 Nxf2 18. Rhf1 Qc5 19. Bg6 fxg6 20. Nxg6 Be4 21. Nxf8 Qe3+ 0-1

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.14"]
[Round "4"]
[White "Blanco Fernandez, Alvaro"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "2190"]
[BlackElo "2530"]
[PlyCount "102"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. f3 Nxd4 11. Bxd4 a5 12. Qd2 Bc6 13. Rfd1 Nd7 14. Be3 a4 15. Rab1 Nc5 16. b4 axb3 17. axb3 Re8 18. Bf1 Qa5 19. b4 Qa3 20. Nd5 Bxd5 21. bxc5 Bc6 22. cxd6 exd6 23. Bd4 Bxd4+ 24. Qxd4 Qc5 25. Kh1 Re6 26. Ra1 Rxa1 27. Qxa1 g5 28. Qa8+ Re8 29. Qa1 g4 30. Qd4 gxf3 31. gxf3 Qh5 32. Be2 Re6 33. Rg1+ Kf8 34. Qg7+ Ke7 35. Qg5+ Qxg5 36. Rxg5 h6 37. Rh5 Rg6 38. c5 dxc5 39. Rxc5 Rg5 40. Rxg5 hxg5 41. Kg2 Kf6 42. Bc4 b5 43. Bb3 Bd7 44. Kf2 Be6 45. Bc2 Ke5 46. Ke3 Bc4 47. f4+ gxf4+ 48. Kf3 f6 49. h4 Bf7 50. Kg4 b4 51. h5 b3 0-1

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.14"]
[Round "5"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Morales Garcia, Sergio Joshafatt"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "2530"]
[BlackElo "2246"]
[PlyCount "77"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. 0-0 Bb4 9. Na4 0-0 10. Nxc6 bxc6 11. Nb6 Rb8 12. Nxc8 Qxc8 13. Bf4 Rb6 14. e5 Nd5 15. Bc1 Bc5 16. a3 a5 17. Bd3 Qc7 18. Qe1 Rbb8 19. Rb1 Bxa3 20. Qe4 f5 21. exf6 Nxf6 22. Qh4 Bc5 23. Bd2 d5 24. Ra1 Bb4 25. Bg5 e5 26. Bf5 Bc5 27. Bxf6 gxf6 28. Rxa5 Bd4 29. Ra3 e4 30. Rh3 Rb7 31. Qg4+ Qg7 32. Bxh7+ Kf7 33. Qf5 Ke7 34. Rg3 Qh6 35. Bg8 Kd6 36. Qe6+ Kc5 37. b4+ Kb5 38. c4+ Kxb4 39. Qxc6 1-0

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.13"]
[Round "2"]
[White "Gonzalez Arroyo, Lenin"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2210"]
[BlackElo "2530"]
[PlyCount "77"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. 0-0 e5 8. Qd3 Rc8 9. Nc3 Qc7 10. Rd1 h6 11. h3 Nf6 12. Nh4 b5 13. a3 g6 14. g4 Be7 15. Ng2 Qc4 16. Qf3 Bc6 17. Ne3 Qe6 18. a4 bxa4 19. Ncd5 Nxd5 20. exd5 Bb7 21. Rxa4 Qd7 22. b3 h5 23. g5 Bxg5 24. Nc4 Bxc1 25. Rxc1 Qe7 26. Kh2 Kf8 27. Rb4 Rc7 28. Rb6 Rd7 29. Na5 Bc8 30. Nc6 Qh4 31. Rg1 e4 32. Qe3 Kg7 33. Nd4 Qf6 34. c4 Re8 35. Rg5 Re5 36. Rg2 h4 37. Rg4 Rb7 38. Rf4 Qg5 39. Rxd6 1-0

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.13"]
[Round "3"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Martinez Martinez, Ian Alf"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2530"]
[BlackElo "1790"]
[PlyCount "65"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. h3 Bh5 6. Nc3 e6 7. Qb3 Qb6 8. c5 Qc7 9. g4 Bg6 10. Ne5 Nbd7 11. Nxg6 hxg6 12. Bg2 Be7 13. g5 Nh5 14. h4 Rb8 15. Bd2 b6 16. cxb6 Rxb6 17. Qc2 c5 18. Na4 Rc6 19. Rc1 Ng3 20. fxg3 Qxg3+ 21. Kf1 Rxh4 22. Rxh4 Qxh4 23. Qb3 Qg3 24. Qb7 Nb8 25. Nxc5 Bxg5 26. Nd3 Rxc1+ 27. Nxc1 Nd7 28. Qc8+ Ke7 29. Bb4+ Kf6 30. Qxd7 Bxe3 31. Qe7+ Kf5 32. Qxf7+ Kg5 33. Ne2 1-0

[Event "Mexican op 67th"]
[Site "Chihuahua City"]
[Date "2022.04.12"]
[Round "1"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sierra Arballo, Jesus"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2530"]
[BlackElo "1894"]
[PlyCount "77"]
[EventDate "2022.04.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 207 Extra"]
[Source "ChessBase"]
[SourceDate "2022.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 d6 8. a4 Rb8 9. axb5 axb5 10. Nc3 0-0 11. Nd5 Bg4 12. c3 Qd7 13. h3 Bh5 14. g4 Bg6 15. Nh4 Nxd5 16. Nxg6 fxg6 17. Bxd5+ Kh8 18. f4 exf4 19. Bxf4 Bh4 20. Be3 Ne5 21. Qe2 g5 22. Rxf8+ Rxf8 23. Rf1 Rf6 24. Rxf6 gxf6 25. Qf1 Kg7 26. d4 Ng6 27. Qf5 Qxf5 28. exf5 Nf4 29. Bc6 Nxh3+ 30. Kg2 Nf4+ 31. Kf3 Nh3 32. Bxb5 Be1 33. c4 Bh4 34. c5 Be1 35. d5 Bb4 36. c6 Nf4 37. Bc4 Ba5 38. b4 Bxb4 39. Bb6 1-0

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.19"]
[Round "9"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Vazquez, Guillermo"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2536"]
[BlackElo "2545"]
[PlyCount "76"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. c4 e6 6. Nc3 dxc4 7. Bxc4 Nd7 8. Nge2 Be7 9. Ng3 Bg6 10. Nge4 Nb6 11. Bb3 Nh6 12. Bg5 Bxe4 13. Nxe4 Nf5 14. 0-0 Qxd4 15. Qf3 Nd5 16. Rad1 Qxe5 17. Rfe1 Nd4 18. Qd3 Nxb3 19. Bxe7 Kxe7 20. Qxb3 Qc7 21. Qa3+ Ke8 22. Nd6+ Kf8 23. Nxb7+ Qe7 24. Nc5 Kg8 25. Rc1 Qxh4 26. Ne4 Rh6 27. Rxc6 Qg4 28. Rc4 Nf4 29. g3 h4 30. f3 Qg6 31. g4 e5 32. Qc3 Qb6+ 33. Kh1 Re6 34. Rc8+ Re8 35. Rxa8 Rxa8 36. Qxe5 Nd3 37. Qd5 Rd8 38. Nd6 Nxe1 1/2-1/2

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.18"]
[Round "8"]
[White "Rodriguez Vila, Andres"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2461"]
[BlackElo "2536"]
[PlyCount "88"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e3 Qa5 5. Nf3 Ne4 6. Be2 Nc6 7. 0-0 Nxc3 8. bxc3 Qxc3 9. Rb1 c4 10. Rb5 e6 11. e4 dxe4 12. Ng5 a6 13. Bh5 g6 14. d5 axb5 15. dxc6 Qf6 16. g3 Be7 17. Nxe4 Qf5 18. Nd6+ Bxd6 19. Qxd6 Qd5 20. Bf3 Qxd6 21. Bxd6 Ra6 22. Be5 f6 23. Bxf6 Rf8 24. cxb7 Bxb7 25. Bxb7 Rb6 26. Be5 Rxb7 27. Rb1 Kf7 28. c3 Rd8 29. a4 Ra8 30. axb5 Ra5 31. Re1 Rbxb5 32. Bd6 Rd5 33. Bf4 e5 34. Bg5 Ke6 35. h4 Ra3 36. Rb1 Rxc3 37. Rb8 Rd7 38. Kg2 Rb3 39. Re8+ Kf7 40. Rxe5 Rc7 41. Bf4 c3 42. Re3 Rc8 43. Rf3 Kg8 44. Bh6 Rb1 0-1

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.17"]
[Round "7"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Berdayes Ason, Dylan Isidro"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2536"]
[BlackElo "2445"]
[PlyCount "93"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. 0-0 d6 6. a4 a6 7. a5 Ba7 8. Be3 0-0 9. Bxa7 Rxa7 10. Re1 Re8 11. c3 Be6 12. Nbd2 Bxc4 13. dxc4 Ne7 14. c5 Ng6 15. Nc4 dxc5 16. Qxd8 Rxd8 17. Nfxe5 Nxe5 18. Nxe5 Raa8 19. f3 Kf8 20. Red1 Ke7 21. Kf2 Nd7 22. Nc4 Nf6 23. Ke3 Ne8 24. Kf4 Ke6 25. g4 Nf6 26. h4 g6 27. g5 Ng8 28. Kg4 h5+ 29. Kf4 Ne7 30. Ke3 Nc6 31. f4 Ne7 32. Ne5 Rd6 33. Nd3 b6 34. Ne5 Nc8 35. Rf1 Rd8 36. axb6 cxb6 37. Nc4 f5 38. gxf6 b5 39. Ne5 Kxf6 40. Rfd1 Nd6 41. b3 Kg7 42. Rg1 Kh7 43. Rxg6 c4 44. Rag1 cxb3 45. R1g5 Nc4+ 46. Nxc4 bxc4 47. f5 1-0

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.16"]
[Round "6"]
[White "Santos Latasa, Jaime"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2640"]
[BlackElo "2536"]
[PlyCount "123"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be3 d6 6. h3 c5 7. d5 Qa5 8. Bd2 e6 9. Nf3 exd5 10. exd5 Bf5 11. Be2 Qb6 12. g4 Be4 13. 0-0 Bxf3 14. Bxf3 Nbd7 15. Qc2 Ne8 16. Be2 Qd8 17. Kg2 a6 18. a4 f5 19. f4 Nc7 20. a5 Bd4 21. Bf3 Rb8 22. Rae1 b5 23. axb6 Rxb6 24. b3 Qb8 25. Bd1 Qc8 26. Ne2 fxg4 27. hxg4 Bg7 28. Ng3 a5 29. Bxa5 Ra6 30. Bc3 Bxc3 31. Qxc3 Ra2+ 32. Re2 Rxe2+ 33. Bxe2 Nf6 34. g5 Nfe8 35. Ne4 Qd7 36. Qe3 Ng7 37. Nf6+ Rxf6 38. gxf6 Nf5 39. Qh3 Ne8 40. Bd3 Nxf6 41. Bxf5 gxf5 42. Qh6 Kf7 43. Qg5 h6 44. Qxh6 Qe7 45. Qh3 Qe4+ 46. Qf3 Qc2+ 47. Rf2 Qb1 48. Re2 Qa1 49. Qd3 Ne4 50. Qh3 Kg6 51. Kh2 Nf6 52. Rg2+ Ng4+ 53. Rxg4+ fxg4 54. Qxg4+ Kf6 55. Qe6+ Kg7 56. Qxd6 Qb2+ 57. Kg3 Qxb3+ 58. Kg4 Qxc4 59. Qe7+ Kg8 60. d6 Qf7 61. Qxf7+ Kxf7 62. f5 1-0

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.15"]
[Round "5"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sandoval Mercado, Carlos"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2536"]
[BlackElo "2289"]
[PlyCount "92"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 0-0 6. Be3 Nc6 7. d5 Ne5 8. f4 Neg4 9. Bd2 Nh6 10. Nf3 e6 11. dxe6 fxe6 12. Qc2 Qe7 13. 0-0-0 e5 14. fxe5 dxe5 15. h3 c6 16. g4 Nf7 17. Be3 Be6 18. Nd2 Rfb8 19. Kb1 Nd8 20. g5 Nd7 21. h4 Bf7 22. h5 Ne6 23. hxg6 Bxg6 24. Bh5 Nd4 25. Qd3 Nc5 26. Qf1 Qe6 27. Bxg6 Qxg6 28. Rh4 a6 29. Qh3 b5 30. Rg1 bxc4 31. Nxc4 Qf7 32. Qf1 Rf8 33. Qxf7+ Rxf7 34. Rgh1 Raf8 35. Nd2 Nd3 36. Rxh7 Nf2 37. R1h4 Ng4 38. Rxg7+ Kxg7 39. Rxg4 Kg6 40. Rh4 Rh7 41. Rh6+ Rxh6 42. gxh6 Ne6 43. b3 Nf4 44. Nf3 Kf6 45. Na4 Rg8 46. Nc5 Rg3 1-0

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.14"]
[Round "4"]
[White "Veiga, Jose Francisco RP"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2366"]
[BlackElo "2536"]
[PlyCount "49"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd6 9. 0-0 Be7 10. Bg5 0-0 11. Qd2 b6 12. Bf4 Qd8 13. Rac1 Bb7 14. Rfd1 Nb4 15. Ne5 Nbd5 16. Nxd5 Nxd5 17. Nc6 Bxc6 18. Rxc6 Qd7 19. Rc2 Rac8 20. Be5 Bd6 21. Bc4 Nb4 22. Bxg7 Kxg7 23. Qg5+ Kh8 24. Qf6+ Kg8 25. Rc3 1/2-1/2

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.13"]
[Round "2"]
[White "Corrales Jimenez, Zenia"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2151"]
[BlackElo "2536"]
[PlyCount "90"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 Bxc6 8. Bg5 e6 9. 0-0-0 Be7 10. Rhe1 0-0 11. Kb1 h6 12. Bh4 b5 13. Bxf6 Bxf6 14. Qxd6 Qb6 15. Ne5 Bxe5 16. Qxe5 Qxf2 17. Rf1 Qh4 18. g4 b4 19. Ne2 Qg5 20. Qxg5 hxg5 21. Ng3 g6 22. Rd4 Rab8 23. Rfd1 Kg7 24. Rc4 Rfc8 25. b3 Kf6 26. Kb2 Be8 27. c3 bxc3+ 28. Kxc3 Ke5 29. h3 Bb5 30. Rxc8 Rxc8+ 31. Kb4 Rb8 32. Kc5 Kf4 33. Nf1 Kxe4 34. Nd2+ Ke3 35. Nc4+ Bxc4 36. bxc4 Rc8+ 37. Kb4 f5 38. Re1+ Kd4 39. Rd1+ Ke5 40. c5 f4 41. Kb5 f3 42. c6 Kf4 43. Rd7 f2 44. Rf7+ Kg3 45. Kc5 e5 0-1

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.13"]
[Round "3"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Noboa Silva, Kevin Omar"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2536"]
[BlackElo "2331"]
[PlyCount "185"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 0-0 5. a3 Be7 6. e4 d6 7. Be2 a5 8. b3 e5 9. Bb2 exd4 10. Nxd4 Nc6 11. 0-0 Nxd4 12. Bxd4 Nd7 13. Bg4 Bf6 14. Nf3 Re8 15. Re1 Ne5 16. Bxc8 Nxf3+ 17. Qxf3 Bxd4 18. Bxb7 Bxa1 19. Bxa8 Qxa8 20. Rxa1 Qxe4 21. Qxe4 Rxe4 22. Kf1 Kf8 23. Rc1 c5 24. Rc3 Ke7 25. f3 Rh4 26. h3 Kd7 27. Ke2 Kc6 28. Kd2 f5 29. Rd3 Rh6 30. Ke3 Rg6 31. Rd2 Re6+ 32. Kf4 Re5 33. a4 Kd7 34. Rd3 Re2 35. g3 Ke6 36. Kg5 Re1 37. f4 Re4 38. Rf3 Re2 39. g4 fxg4 40. hxg4 Kf7 41. Rd3 h6+ 42. Kh4 Rh2+ 43. Kg3 Rb2 44. Kf3 Ke7 45. Re3+ Kf6 46. Rd3 Ke7 47. f5 Rb1 48. Re3+ Kd7 49. Kg3 Rg1+ 50. Kh4 Rh1+ 51. Kg3 Rg1+ 52. Kf3 Rb1 53. Kg2 Rb2+ 54. Kh3 Rb1 55. Rc3 Re1 56. Kh4 Ke7 57. Rd3 Rh1+ 58. Kg3 Re1 59. Kf2 Re5 60. Kf3 h5 61. Kf4 hxg4 62. Kg5 Re4 63. Kg6 Rf4 64. Rg3 Rf3 65. Rxg4 Kf8 66. Rg1 Rxb3 67. f6 gxf6 68. Kxf6 Rb4 69. Rh1 Kg8 70. Rg1+ Kf8 71. Rh1 Kg8 72. Rc1 Rxa4 73. Ke7 Ra2 74. Rg1+ Kh7 75. Kxd6 Rd2+ 76. Kxc5 Rd8 77. Kb6 a4 78. Ra1 Rb8+ 79. Kc7 Rb4 80. c5 Kg6 81. c6 Kf5 82. Kd6 Rc4 83. Kd5 Rc2 84. Rxa4 Kf6 85. Re4 Kf5 86. Re8 Kf6 87. Kd6 Kf7 88. Rh8 Rd2+ 89. Kc5 Rc2+ 90. Kb6 Ke7 91. c7 Rb2+ 92. Ka5 Ra2+ 93. Kb4 1-0

[Event "Iberoamerican-ch 8th"]
[Site "Mexico City"]
[Date "2022.02.12"]
[Round "1"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Moran Velez, Francisco R"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2536"]
[BlackElo "1931"]
[PlyCount "43"]
[EventDate "2022.02.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "CBM 206 Extra"]
[Source "ChessBase"]
[SourceDate "2022.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 Qa5 4. Na3 Bg7 5. d4 d6 6. Nc4 Qc7 7. a4 Be6 8. Ng5 cxd4 9. Nxe6 fxe6 10. cxd4 Nc6 11. d5 Ne5 12. Nxe5 dxe5 13. Bb5+ Kf8 14. dxe6 a6 15. Bd3 Qb6 16. 0-0 Rd8 17. Qf3+ Nf6 18. Bc4 Qd4 19. Bd5 Rb8 20. Be3 Qb4 21. Rfc1 Qd6 22. Bc5 1-0

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.07"]
[Round "9"]
[White "Benitez Lozano, Javier"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2288"]
[BlackElo "2543"]
[PlyCount "170"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. b3 Nbd7 6. Qc2 Bd6 7. Bb2 0-0 8. Be2 Qe7 9. 0-0 a6 10. d4 b5 11. e4 Nxe4 12. Nxe4 dxe4 13. Qxe4 Nf6 14. Qh4 bxc4 15. Bxc4 a5 16. Rac1 Nd5 17. Qe4 a4 18. bxa4 Ba6 19. Rfe1 Bxc4 20. Rxc4 Rfb8 21. Bc1 h6 22. Ne5 Bxe5 23. dxe5 Nb6 24. Rxc6 Rxa4 25. Qc2 Qd7 26. Be3 Rxa2 27. Qxa2 Qxc6 28. Bxb6 Qxb6 29. h3 Qd4 30. Qe2 Rb2 31. Qf3 Ra2 32. g3 Ra1 33. Qe2 Rxe1+ 34. Qxe1 h5 35. h4 g6 36. Qe2 Kg7 37. Qe1 Qd3 38. Kg2 Qd5+ 39. Kg1 Qf3 40. Qc1 Qf5 41. Qe3 Qb1+ 42. Kg2 Qb4 43. Qg5 Qe4+ 44. Kg1 Qd4 45. Qf6+ Kg8 46. Qg5 Qd1+ 47. Kg2 Qd5+ 48. Kg1 Kf8 49. Qh6+ Ke7 50. Qg5+ Ke8 51. Qf4 Qd1+ 52. Kg2 Qd7 53. Kh2 Kd8 54. Kg1 Kc7 55. Kh2 Qe7 56. Kg1 Kc6 57. Qc4+ Kb6 58. Qb3+ Kc6 59. Qc4+ Qc5 60. Qe4+ Kd7 61. Qf4 Ke8 62. Qa4+ Kf8 63. Qf4 Qc2 64. Qh6+ Ke8 65. Qf4 Qb1+ 66. Kg2 Qc2 67. Kg1 Qf5 68. Qa4+ Kf8 69. Qa3+ Kg7 70. Qe3 Qb1+ 71. Kg2 Qb7+ 72. Kg1 Qe7 73. Qf4 Qd8 74. Kg2 Qd3 75. Qf6+ Kf8 76. Qh8+ Ke7 77. Qf6+ Ke8 78. Qf4 Qf5 79. Qa4+ Kd8 80. Qa5+ Kd7 81. Qb5+ Ke7 82. Qc5+ Ke8 83. Qc8+ Ke7 84. Qc5+ Ke8 85. Qc8+ Ke7 1/2-1/2

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.07"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2543"]
[BlackElo "2545"]
[PlyCount "41"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nxe4 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ Kf8 11. Qxb4+ Qe7 12. Qxe7+ Kxe7 13. Nc3 Nxc3 14. bxc3 d6 15. Nd2 Be6 16. Nf1 c5 17. Ne3 b5 18. 0-0-0 Rhf8 19. dxc5 dxc5 20. Rhe1 Rad8 21. Nd5+ 1/2-1/2

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.06"]
[Round "7"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B67"]
[WhiteElo "2447"]
[BlackElo "2543"]
[PlyCount "45"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f3 Be7 10. h4 h6 11. Be3 h5 12. Bg5 Qc7 13. Nxc6 Bxc6 14. Bd3 b5 15. Ne2 Qb6 16. Be3 Qb7 17. Nd4 Bd7 18. Bg5 Qb6 19. Be3 Qb7 20. Rhe1 a5 21. Bg5 Qb6 22. Bf1 e5 23. f4 1/2-1/2

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.06"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Garcia Guerrero, Isaac Antonio"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2543"]
[BlackElo "2368"]
[PlyCount "93"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. 0-0 Ne7 6. b3 Ng6 7. Bb2 f6 8. e5 Be7 9. d3 0-0 10. Nbd2 Qc7 11. Nc4 fxe5 12. Nfxe5 Nh8 13. Qg4 Bf6 14. Qg3 Ba6 15. f4 Bxc4 16. Ng4 Ng6 17. Nxf6+ gxf6 18. dxc4 Rf7 19. Qe3 Re8 20. f5 Ne5 21. fxe6 Rxe6 22. Qxc5 Ng4 23. Qh5 Rg7 24. Kh1 Rg6 25. Bc1 Qd6 26. Bf4 Qd4 27. Bg3 Rh6 28. c3 Qxc4 29. Qa5 Qd5 30. Qxd5 cxd5 31. h3 Ne3 32. Rf3 Rg6 33. Bf2 Nc2 34. Rd1 d4 35. Rd2 Ne1 36. Bxe1 Rxe1+ 37. Kh2 dxc3 38. Rxc3 Re7 39. Rc8+ Kf7 40. Rc7 d6 41. Rc6 f5 42. Rcxd6 Rxd6 43. Rxd6 Kg7 44. Ra6 f4 45. Kg1 Re2 46. Rxa7+ Kg6 47. Ra5 1-0

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.05"]
[Round "5"]
[White "Avila Pavas, Santiago"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2432"]
[BlackElo "2543"]
[PlyCount "107"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. f3 0-0 10. Be3 Nc6 11. 0-0 a6 12. a4 Rac8 13. b3 e6 14. Qd2 Na5 15. Rab1 Qc7 16. Rfc1 Nd7 17. Nce2 Rfe8 18. Kh1 b6 19. b4 Bxd4 20. Qxd4 Nxc4 21. Bh6 e5 22. Qf2 d5 23. Nc3 d4 24. Nd5 Qd6 25. f4 f5 26. fxe5 Qxe5 27. Bf4 Qxe4 28. Nc7 Rxc7 29. Bxc7 b5 30. axb5 axb5 31. Re1 Ne3 32. Rbd1 Nf6 33. Bb6 Qe6 34. Bxd4 Nxd1 35. Rxd1 Ng4 36. Qb2 f4 37. Rf1 Qc4 38. Qa1 Ne3 39. Re1 Qxb4 40. h3 Qd2 41. Rg1 Nf5 42. Bb2 Qe2 43. Qa3 f3 44. Qc3 Kf7 45. Qf6+ Kg8 46. Qh8+ Kf7 47. Qxh7+ Kf8 48. Qxg6 fxg2+ 49. Kh2 Qxb2 50. Qxf5+ Ke7 51. Re1+ Kd8 52. Qd5+ Kc7 53. Qf7+ Kb6 54. Qxe8 1-0

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.05"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Ramirez Alvarez, Alejandro"]
[Result "1/2-1/2"]
[ECO "D78"]
[WhiteElo "2543"]
[BlackElo "2562"]
[PlyCount "45"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 c6 4. Bg2 Bg7 5. d4 0-0 6. 0-0 d5 7. Qa4 Nbd7 8. cxd5 Nb6 9. Qa3 cxd5 10. Bf4 Nc4 11. Qb3 Na5 12. Qa3 Nc4 13. Qb3 Na5 14. Qa4 Bd7 15. Qb4 Rc8 16. Rd1 b6 17. Ne5 e6 18. Qd2 Nc4 19. Nxc4 Rxc4 20. Na3 Rc8 21. Rac1 Qe7 22. h4 Ba4 23. Rxc8 1/2-1/2

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.04"]
[Round "3"]
[White "Blanco Fernandez, Alvaro"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "D55"]
[WhiteElo "2235"]
[BlackElo "2543"]
[PlyCount "45"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bf4 0-0 7. e3 b6 8. Qc2 c5 9. dxc5 bxc5 10. Rd1 Nc6 11. Be2 Qa5 12. 0-0 Rd8 13. Ne5 Nxe5 14. Bxe5 Bb7 15. cxd5 Nxd5 16. Nxd5 Bxd5 17. b3 c4 18. Qb2 cxb3 19. Bxg7 Qxa2 20. Qxa2 bxa2 21. Bd4 Bb3 22. Rc1 Rac8 23. Ra1 0-1

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.04"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Galaviz Medina, Sion Radamantys"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2543"]
[BlackElo "2377"]
[PlyCount "23"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 e6 5. 0-0 Nf6 6. c4 dxc4 7. Qa4 cxd4 8. Ne5 Bd7 9. Nxc6 bxc6 10. Qxc4 Qb6 11. Rd1 e5 12. e3 1/2-1/2

[Event "Mexico City Latinoamericano-A 1st"]
[Site "Mexico City"]
[Date "2021.11.03"]
[Round "1"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Estrada Nieto, Julian"]
[Result "1-0"]
[ECO "C98"]
[WhiteElo "2543"]
[BlackElo "2280"]
[PlyCount "107"]
[EventDate "2021.11.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "7"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. d5 Nc4 13. a4 Bd7 14. b3 Na5 15. axb5 axb5 16. Nbd2 Nb7 17. Rb1 g6 18. Nf1 Nh5 19. Bh6 Ng7 20. g4 f6 21. Ng3 Nd8 22. Kh1 Nf7 23. Be3 Ng5 24. Nxg5 fxg5 25. Kg2 Ra2 26. Ra1 Rfa8 27. Rxa2 Rxa2 28. Bb1 Ra8 29. Qd2 Qd8 30. Ne2 Ne8 31. Ng1 Bf6 32. Nf3 h6 33. Bd3 Nc7 34. Rh1 Ra3 35. Qc1 Ra2 36. Kg3 Bc8 37. Qb1 Ra8 38. Qb2 Qe8 39. Be2 Kg7 40. Ra1 Bd7 41. b4 Rxa1 42. Qxa1 Nxd5 43. exd5 e4 44. Nd2 cxb4 45. Qb1 bxc3 46. Nxe4 Be5+ 47. Kg2 Qc8 48. Qb4 c2 49. Bc1 Qb7 50. Nxd6 Qxd5+ 51. Ne4 Bc6 52. Qe7+ Kg8 53. Bf3 Kh8 54. Nxg5 1-0

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.08"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Avila Rodriguez, Joshua Ad"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2536"]
[BlackElo "2058"]
[PlyCount "123"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qb3 dxc4 5. Qxc4 Bf5 6. Nc3 e6 7. g3 Nbd7 8. Bg2 Be7 9. 0-0 0-0 10. e3 Ne4 11. Nd2 Nd6 12. Qe2 e5 13. dxe5 Nxe5 14. e4 Bg4 15. f3 Be6 16. Kh1 Qa5 17. f4 Bg4 18. Qe3 Ndc4 19. Qd4 Qd8 20. Nd5 cxd5 21. fxe5 Nxd2 22. exd5 Nxf1 23. Qxg4 Qb6 24. Bxf1 Rfd8 25. d6 Bxd6 26. exd6 Rxd6 27. Bf4 Qxb2 28. Re1 Qf2 29. Qe2 Qxe2 30. Rxe2 Rd1 31. Kg2 h6 32. Rb2 Rc8 33. Be2 Ra1 34. h4 b6 35. h5 Rc5 36. Rd2 Rc8 37. Bd1 f6 38. Bb3+ Kh8 39. Be3 Rac1 40. Be6 R8c2 41. Rxc2 Rxc2+ 42. Kf3 Rb2 43. Bb3 a5 44. Bd4 Rb1 45. Bc2 Rb4 46. Ke3 Rc4 47. Bb3 Rc6 48. a4 Rd6 49. Kd3 Kh7 50. Bf7 Rc6 51. Bd5 Rd6 52. Be4+ Kg8 53. Kc4 Kf7 54. g4 Ke8 55. Bf5 Kd8 56. Be3 Rc6+ 57. Kb5 Rc3 58. Bxb6+ Ke7 59. Bxa5 Rf3 60. Bb4+ Kf7 61. a5 Re3 62. a6 1-0

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.07"]
[Round "7"]
[White "Gracia Alvarez, Gerardo Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "2241"]
[BlackElo "2536"]
[PlyCount "94"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 c5 6. c4 Nc6 7. 0-0 d6 8. d4 cxd4 9. Nxd4 Qb6 10. e3 Bd7 11. Qd2 Rfc8 12. Nc3 Rab8 13. h3 Qa5 14. Rfd1 a6 15. Nd5 Qxd2 16. Nxf6+ Bxf6 17. Rxd2 Kg7 18. Rad1 Nd8 19. g4 h6 20. f4 Ne6 21. Nxe6+ Bxe6 22. Bxf6+ Kxf6 23. Rd4 b5 24. cxb5 axb5 25. R1d2 Rc1+ 26. Kf2 Rbc8 27. Rb4 Bd7 28. Rbd4 g5 29. Ke2 Ra1 30. Kf2 Rc7 31. Rb2 Kg7 32. Rdd2 h5 33. Bf3 h4 34. Rbc2 Ra7 35. fxg5 Kg6 36. Be4+ Kxg5 37. Rd5+ Kf6 38. Rdd2 Be6 39. Kf3 Ke5 40. Bc6 b4 41. Rd4 Rc7 42. Rdd2 d5 43. Ba4 Rc3 44. Ke2 Rh1 45. Rxc3 bxc3 46. Rd1 Bxg4+ 47. hxg4 Rxd1 0-1

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.07"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Cori, Jorge Moise"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2536"]
[BlackElo "2652"]
[PlyCount "81"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. c4 e6 5. Nc3 Ne7 6. h4 h5 7. Bg5 Qb6 8. Qd2 Nd7 9. cxd5 Nxd5 10. Bc4 f6 11. Bxd5 cxd5 12. exf6 gxf6 13. Bf4 Qa6 14. Nge2 Qd3 15. Qc1 Bb4 16. 0-0 Kf7 17. Rd1 Qa6 18. Ng3 Bg6 19. a3 Bxc3 20. Qxc3 Rac8 21. Qf3 Qb6 22. b4 Rc4 23. Rac1 Rhc8 24. Rxc4 Rxc4 25. Be3 Qd8 26. b5 Qh8 27. Bf4 Nb6 28. Bd6 Rc8 29. Re1 Nc4 30. Bb4 Qh6 31. Ne2 Be4 32. Qg3 Qg6 33. Qh2 Nb2 34. Nf4 Qg4 35. Rf1 Nd3 36. Bd2 Nxf4 37. Bxf4 Bxg2 38. Re1 Be4+ 39. Qg3 Rg8 40. Rc1 Qxf4 41. Kf1 0-1

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.06"]
[Round "5"]
[White "Hevia Alejano, Carlos Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2464"]
[BlackElo "2536"]
[PlyCount "127"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. c3 Qc7 6. 0-0 0-0 7. Re1 d5 8. Qb3 c4 9. Qd1 Nc6 10. Bf4 Qa5 11. Qc1 Bf5 12. Nbd2 Nh5 13. Bg5 h6 14. Be3 g5 15. b3 cxb3 16. Nxb3 Qd8 17. h4 g4 18. Ne5 Qd6 19. Nxc6 Qxc6 20. c4 Qxc4 21. Bxh6 Qxc1 22. Bxc1 e6 23. Ba3 Rfc8 24. Rac1 b6 25. e3 Bd3 26. Nd2 f5 27. Bf1 Bxf1 28. Kxf1 e5 29. dxe5 Bxe5 30. Nb3 Nf6 31. Red1 Kf7 32. Ke2 Ne4 33. Rxd5 Rxc1 34. Rd7+ Ke6 35. Re7+ Kf6 36. Nxc1 Rd8 37. Nb3 Nc3+ 38. Kf1 Rd1+ 39. Kg2 Nb5 40. Rxe5 Kxe5 41. Bb2+ Ke6 42. h5 Kf7 43. Be5 Rd5 44. Bb2 Kg8 45. a4 Kh7 46. Bc1 Rd3 47. Nd2 Nc3 48. Nc4 Nxa4 49. Ne5 Rd1 50. Ba3 Kh6 51. e4 Re1 52. Nf7+ Kg7 53. Nd6 fxe4 54. Bb4 Re2 55. Nf5+ Kh7 56. Bf8 Kg8 57. Be7 Nc3 58. Nh6+ Kh7 59. Nxg4 Nd5 60. Kf1 Rc2 61. Nf6+ Nxf6 62. Bxf6 b5 63. g4 b4 64. Ke1 0-1

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.06"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Tapie Amione, Pablo Adib"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2536"]
[BlackElo "2313"]
[PlyCount "71"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Re1 e6 7. b3 Be7 8. d4 b5 9. e5 dxe5 10. dxe5 Nd5 11. c4 bxc4 12. bxc4 Nb4 13. Qe2 Nc6 14. Nc3 0-0 15. Qe4 Nd4 16. Nxd4 cxd4 17. Qxd4 Nb6 18. Qg4 Qd3 19. Ne4 Rfc8 20. Bh6 g6 21. c5 Rxc5 22. Nxc5 Bxc5 23. Rad1 Qa3 24. Qf4 Be7 25. Re3 Nd5 26. Rxa3 Nxf4 27. Ra6 Nd5 28. Rc1 Bd8 29. Rac6 Ne7 30. R6c4 Rb8 31. g4 Bb6 32. Kg2 Re8 33. Kf3 Rd8 34. Ke2 Rd5 35. Rc7 Rxe5+ 36. Kf1 1-0

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.05"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Garcia Nevarez, Moises Omar"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2536"]
[BlackElo "2029"]
[PlyCount "61"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. c3 Nge7 7. a4 0-0 8. d3 d6 9. Be3 Bg4 10. Nbd2 f5 11. h3 Bxf3 12. Nxf3 f4 13. Bd2 h6 14. b4 g5 15. Bc4+ Kh8 16. Nxg5 Qe8 17. Ne6 Qg6 18. Nxf8 Rxf8 19. Qg4 Qh7 20. bxc5 dxc5 21. a5 Ng6 22. a6 h5 23. Qe6 Nd8 24. Qd7 Nh4 25. Kh1 b5 26. Bd5 Qg6 27. Rg1 Bh6 28. f3 Qf6 29. Qxa7 Nf7 30. Bxf7 Rxf7 31. Qxf7 1-0

[Event "Mexican op 66th"]
[Site "Villahermosa"]
[Date "2021.08.05"]
[Round "3"]
[White "Quiroga Garza, Juan Manuel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2152"]
[BlackElo "2536"]
[PlyCount "70"]
[EventDate "2021.08.04"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "MEX"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. c4 Nf6 8. Nc3 g6 9. 0-0 Bg7 10. Qd3 0-0 11. Nd4 Nd7 12. Be3 Rc8 13. f3 Ne5 14. Qe2 Bd7 15. b3 f5 16. exf5 gxf5 17. Rad1 f4 18. Bf2 Qe8 19. Bh4 Qh5 20. Bxe7 Rfe8 21. Nd5 Ng6 22. Rfe1 Kf7 23. Ne6 Be5 24. Ng5+ Kg7 25. Nf6 Bxf6 26. Bxf6+ Kxf6 27. Ne4+ Kg7 28. Rxd6 Bc6 29. Qb2+ Qe5 30. Qd2 Re7 31. Kf1 Bxe4 32. fxe4 Rce8 33. Rd5 Qf6 34. Qd3 Ne5 35. Qh3 Qg6 0-1

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.25"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Medina Diaz, Rafael Alejandro"]
[Result "1-0"]
[ECO "C87"]
[WhiteElo "2529"]
[BlackElo "2299"]
[PlyCount "98"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. 0-0 Be7 6. c3 a6 7. Ba4 0-0 8. Nbd2 Re8 9. Re1 Bg4 10. h3 Bh5 11. Nf1 Bf8 12. Ng3 Bg6 13. Nh4 d5 14. Qf3 dxe4 15. dxe4 b5 16. Bc2 Na5 17. Bg5 c5 18. Rad1 Qb6 19. Bxf6 Qxf6 20. Qxf6 gxf6 21. Nhf5 Rad8 22. Ne3 Nc4 23. Nxc4 bxc4 24. h4 h5 25. Rxd8 Rxd8 26. Nf1 Bh6 27. f3 Rb8 28. Rb1 Kf8 29. Kf2 Ke7 30. b4 cxb4 31. Rxb4 Rxb4 32. cxb4 Bc1 33. Ne3 Ba3 34. Ke2 Kd7 35. Nxc4 Bxb4 36. Nb6+ Kd8 37. Nd5 Bc5 38. g4 Be7 39. Nxe7 Kxe7 40. Kd2 Kd6 41. Kc3 Kc5 42. Bd3 a5 43. a4 hxg4 44. fxg4 Bh7 45. Bc2 Bg6 46. h5 Bh7 47. h6 Kd6 48. Bb3 Bxe4 49. Bc2 Bh7 1-0

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.25"]
[Round "9"]
[White "Sanchez Enriquez, Oscar Gerardo"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A38"]
[WhiteElo "2324"]
[BlackElo "2529"]
[PlyCount "44"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 c5 6. c4 Nc6 7. 0-0 d6 8. Nc3 Ne4 9. Qc2 Nxc3 10. Bxc3 e5 11. e3 Be6 12. Rad1 d5 13. d4 cxd4 14. exd4 e4 15. Ne5 f5 16. f4 Rc8 17. Qb2 b6 18. h4 Qe7 19. cxd5 Bxd5 20. Nc4 Bxc4 21. bxc4 Rfd8 22. Rfe1 Rxd4 0-1

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.24"]
[Round "7"]
[White "Benitez Lozano, Javier"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2340"]
[BlackElo "2529"]
[PlyCount "110"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nf6 5. e4 0-0 6. Nge2 Nc6 7. d3 d6 8. 0-0 Bg4 9. f3 Bd7 10. Be3 a6 11. a4 Ne8 12. d4 cxd4 13. Nxd4 Rc8 14. b3 b5 15. axb5 Nxd4 16. Bxd4 axb5 17. Nxb5 Bxb5 18. cxb5 Rb8 19. Bxg7 Nxg7 20. Rf2 Rxb5 21. Bf1 Rb4 22. Bc4 Qb6 23. Ra6 Qc5 24. Kg2 Ne6 25. Rfa2 Nc7 26. R6a5 Qb6 27. h4 e6 28. h5 d5 29. exd5 exd5 30. Rxd5 Nxd5 31. Qxd5 Qf6 32. Ra6 Rb6 33. Rxb6 Qxb6 34. Qe5 gxh5 35. Qxh5 Qg6 36. Qd5 Qg7 37. b4 Qf6 38. Qe4 Rd8 39. b5 Rd4 40. Qe8+ Kg7 41. Be2 h5 42. Qe3 Rb4 43. Qd3 h4 44. gxh4 Rxh4 45. Qe3 Qg6+ 46. Kf2 Rh2+ 47. Ke1 Qb1+ 48. Bd1 Qb4+ 49. Kf1 Rh1+ 50. Kg2 Rxd1 51. Qg5+ Kf8 52. Qh6+ Ke8 53. Qh8+ Kd7 54. Qh3+ Kc7 55. Qg3+ Kb7 0-1

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.23"]
[Round "5"]
[White "Frey Beckman, Kenneth"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2253"]
[BlackElo "2529"]
[PlyCount "78"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. d4 d6 6. Be2 c5 7. d5 e6 8. 0-0 Re8 9. Bf4 exd5 10. exd5 Ne4 11. Nxe4 Rxe4 12. Bg5 Qf8 13. Qc2 Re8 14. Rae1 Bg4 15. h3 Bxf3 16. Bxf3 Nd7 17. Bd2 Be5 18. Be2 Re7 19. f4 Bd4+ 20. Kh1 Rae8 21. Bf3 Be3 22. Bxe3 Rxe3 23. Rxe3 Rxe3 24. Qa4 Nb6 25. Qxa7 Nxc4 26. Qxb7 Nd2 27. Rd1 Nxf3 28. gxf3 Rxf3 29. Kg2 Rxf4 30. Rf1 Rb4 31. Qd7 Rxb2+ 32. Rf2 Rb8 33. a4 c4 34. a5 Ra8 35. Ra2 Qh6 36. a6 Qg5+ 37. Kf2 Qxd5 38. a7 c3 39. Qa4 Kg7 0-1

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.23"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Tello Chavez, Isaac Valentino"]
[Result "1-0"]
[ECO "D42"]
[WhiteElo "2529"]
[BlackElo "2270"]
[PlyCount "89"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bd3 dxc4 8. Bxc4 0-0 9. 0-0 Nc6 10. Re1 b6 11. a3 Bb7 12. Bd3 Nd5 13. Bc2 Bf6 14. Ne4 Nce7 15. Qd3 Ng6 16. g3 Be7 17. h4 Nf6 18. Nc3 Qd6 19. Bg5 Rfd8 20. Bxf6 Bxf6 21. h5 Nf8 22. Ne4 Bxe4 23. Rxe4 Rac8 24. Rd1 h6 25. Bb3 Rc7 26. Qe2 Rcd7 27. Ba4 Rc7 28. Bb3 Rcd7 29. Ne5 Bxe5 30. dxe5 Qc7 31. Rxd7 Nxd7 32. Bc2 Rc8 33. Bd3 Qc1+ 34. Kg2 Qc6 35. Kh2 Nc5 36. Rc4 Qa8 37. Bb1 Rd8 38. b4 Nd7 39. f4 f5 40. exf6 Nxf6 41. Qxe6+ Kh8 42. Be4 Nxe4 43. Rxe4 Rd5 44. f5 Qd8 45. Qg6 1-0

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.22"]
[Round "2"]
[White "Garcia Guerrero, Isaac Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2311"]
[BlackElo "2529"]
[PlyCount "114"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 d5 6. exd5 Nxd5 7. 0-0 Be7 8. Nc3 0-0 9. Rd1 Nc7 10. d4 cxd4 11. Bf4 Re8 12. Bxc7 Qxc7 13. Nxd4 Nxd4 14. Rxd4 a6 15. Rad1 Rb8 16. Ne4 e5 17. Nd6 exd4 18. Nxe8 Qc5 19. b4 Qg5 20. Rxd4 Be6 21. Nc7 Bxa2 22. Bd5 Bxd5 23. Nxd5 Bf8 24. c4 h6 25. Kg2 Rd8 26. Qf3 Rd6 27. Rg4 Qd8 28. Rd4 Re6 29. Rf4 Qd7 30. Qg4 Qc6 31. Qf3 Qd7 32. Qg4 Qc6 33. Qf3 f6 34. b5 axb5 35. cxb5 Qd6 36. Rf5 Re1 37. Nf4 Qd1 38. Qxb7 Rg1+ 39. Kh3 Qf1+ 40. Kg4 Qxf2 41. Qd5+ Kh7 42. Qd3 Qf1 43. Qxf1 Rxf1 44. Ne6 h5+ 45. Rxh5+ Kg8 46. Rd5 Be7 47. h4 Kf7 48. Nf4 g5 49. hxg5 fxg5 50. Rf5+ Ke8 51. Ng6 Rxf5 52. Kxf5 Bd6 53. g4 Kd7 54. Kxg5 Kc7 55. Kf5 Kb6 56. g5 Kxb5 57. Ne5 Be7 1-0

[Event "Mexico City Fenamac-A 3rd"]
[Site "Mexico City"]
[Date "2021.07.22"]
[Round "3"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Schwartz, Ylon"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2529"]
[BlackElo "2258"]
[PlyCount "75"]
[EventDate "2021.07.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "2"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 Bd7 5. Re1 Nf6 6. c3 a6 7. Bf1 Bg4 8. d4 cxd4 9. cxd4 Bxf3 10. gxf3 g6 11. d5 Nb8 12. f4 Bg7 13. e5 dxe5 14. fxe5 Nxd5 15. Bg2 e6 16. Nc3 Nxc3 17. bxc3 Qxd1 18. Rxd1 Nc6 19. Rb1 0-0 20. f4 Rfd8 21. Rxd8+ Rxd8 22. Kf2 Bf8 23. Rxb7 Bc5+ 24. Ke2 Na5 25. Rb1 Nc4 26. Be4 Ba3 27. Bxa3 Nxa3 28. Rb3 Nc4 29. Bd3 Rc8 30. Rb4 Na5 31. Kd2 g5 32. Bxa6 Rd8+ 33. Rd4 Rb8 34. Kc2 gxf4 35. Rxf4 Nc6 36. Re4 Rb6 37. Bd3 Rb7 38. a4 1-0

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.04"]
[Round "9"]
[White "Benitez Lozano, Javier"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2375"]
[BlackElo "2529"]
[PlyCount "72"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Bg5 Nh5 10. Re1 h6 11. Bd2 Nf4 12. Bf1 g5 13. h3 f5 14. exf5 Bxf5 15. Ne4 Neg6 16. Rc1 Rf7 17. Bc3 b6 18. b4 g4 19. Nh2 gxh3 20. g3 Ng2 21. Bxg2 hxg2 22. Qh5 b5 23. cxb5 Ne7 24. Rcd1 Qd7 25. a4 Raf8 26. f3 Bg6 27. Qh4 a6 28. Kxg2 axb5 29. a5 Qd8 30. Bb2 Qa8 31. Ng4 h5 32. Ne3 Rxf3 33. Bc1 c6 34. Rf1 cxd5 35. Nxd6 d4 36. Kh2 dxe3 0-1

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.04"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Gracia Alvarez, Gerardo Antonio"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2529"]
[BlackElo "2292"]
[PlyCount "33"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 Be6 7. 0-0 Nd7 8. Nb3 Bxb3 9. axb3 0-0 10. Be3 Bxe3 11. fxe3 Qe7 12. Qe1 a6 13. Nh4 g6 14. Rf3 Rad8 15. Qg3 Kh8 16. Raf1 f6 17. Qxg6 1-0

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.03"]
[Round "7"]
[White "Garcia Guerrero, Isaac Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2311"]
[BlackElo "2529"]
[PlyCount "38"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. f3 0-0 10. 0-0 Nc6 11. Be3 a6 12. Qd3 Ne5 13. Qe2 Rac8 14. b3 b5 15. Nd5 Nxd5 16. cxd5 e6 17. dxe6 fxe6 18. Rad1 Rc3 19. Kh1 Nc6 1/2-1/2

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.03"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Moran, Daniel Stiven"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2529"]
[BlackElo "2172"]
[PlyCount "65"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bf4 Qa5+ 12. Bd2 Qc7 13. 0-0-0 e6 14. Ne4 0-0-0 15. g3 Nc5 16. Nxc5 Bxc5 17. c4 Bd6 18. Qe2 c5 19. Bc3 Qc6 20. d5 exd5 21. Bxf6 gxf6 22. Rxd5 Qa6 23. Rhd1 Rhe8 24. Qd3 Kc7 25. Nh4 Re5 26. Rxe5 fxe5 27. Qd5 e4 28. Kb1 e3 29. fxe3 Be7 30. Qe5+ Kc8 31. Rxd8+ Kxd8 32. Nf5 Bg5 33. Qd5+ 1-0

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.02"]
[Round "5"]
[White "Medina Diaz, Rafael Alejandro"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2299"]
[BlackElo "2529"]
[PlyCount "18"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. Re1 Nf6 7. c3 g6 8. d4 cxd4 9. cxd4 d5 1/2-1/2

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.02"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Figueredo Losada, Leonel"]
[Result "1-0"]
[ECO "B85"]
[WhiteElo "2529"]
[BlackElo "2353"]
[PlyCount "93"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Be2 Be7 8. 0-0 0-0 9. f4 Qc7 10. Kh1 Nc6 11. a4 Re8 12. g4 Nxd4 13. Bxd4 e5 14. Be3 exf4 15. Rxf4 Be6 16. g5 Nd7 17. Nd5 Bxd5 18. Qxd5 Ne5 19. Rf2 Qc6 20. Qxc6 bxc6 21. b3 f6 22. gxf6 Bxf6 23. Rd1 Bh4 24. Rg2 Be7 25. Bb6 Bd8 26. Bd4 Bc7 27. Bc4+ Kh8 28. Rf1 Re7 29. Bxa6 Rae8 30. Bxe5 dxe5 31. Rgf2 h6 32. Rf8+ Rxf8 33. Rxf8+ Kh7 34. Bb7 Bb6 35. Ba6 Bd4 36. Bc4 g5 37. a5 h5 38. Rc8 g4 39. Rxc6 h4 40. Be6 Kg6 41. c3 Ba7 42. Bxg4+ Kg5 43. Bf5 Kf4 44. Kg2 Re8 45. Rc7 Be3 46. Rg7 Bd2 47. Kf2 1-0

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.01"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sanchez Enriquez, Oscar Gerardo"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2529"]
[BlackElo "2324"]
[PlyCount "87"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Nge7 6. Na3 cxd4 7. cxd4 Nf5 8. Nc2 Bd7 9. Bd3 Qb6 10. 0-0 a5 11. a3 a4 12. Bxf5 exf5 13. Re1 h6 14. Bd2 Be6 15. Bc3 Be7 16. Re2 Qb5 17. Nfe1 f4 18. Qd3 Qxd3 19. Nxd3 g5 20. f3 Na5 21. Bxa5 Rxa5 22. Ncb4 Kd7 23. Rc1 Rc8 24. Rxc8 Kxc8 25. Rc2+ Kd7 26. Nc5+ Bxc5 27. dxc5 d4 28. Kf2 Bb3 29. Rc1 Ke6 30. Ke2 Ra8 31. Kd3 Kxe5 32. c6 bxc6 33. Nxc6+ Kd5 34. Nb4+ Ke5 35. Rc5+ Kf6 36. Nc6 Rc8 37. Kxd4 Re8 38. Re5 Rc8 39. Rf5+ Ke6 40. Rc5 Kd6 41. Na5 Re8 42. Nxb3 axb3 43. Rd5+ Kc6 44. Re5 1-0

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.07.01"]
[Round "3"]
[White "Otero Acosta, Diasmany"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2370"]
[BlackElo "2529"]
[PlyCount "16"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Bg4 6. Be2 0-0 7. Be3 Nfd7 8. 0-0 e5 1/2-1/2

[Event "Mexico City Fenamac-A"]
[Site "Mexico City"]
[Date "2021.06.30"]
[Round "1"]
[White "Tapie Amione, Pablo Adib"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2290"]
[BlackElo "2529"]
[PlyCount "34"]
[EventDate "2021.06.30"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "4"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qf3 Nf6 8. 0-0-0 Bb4 9. Na4 0-0 10. Nxc6 bxc6 11. Nb6 Rb8 12. Nxc8 Rfxc8 13. a3 Be7 14. Bxa6 Rd8 15. Bc4 d5 16. Bd3 Rxb2 17. Kxb2 Bxa3+ 0-1

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.10"]
[Round "9"]
[White "Garcia Guerrero, Isaac Antonio"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2322"]
[BlackElo "2520"]
[PlyCount "33"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. 0-0 0-0 10. f3 Rc8 11. b3 d5 12. exd5 Nxd5 13. Nxd5 e6 14. Be3 exd5 15. cxd5 Qxd5 16. Ne2 Qe6 17. Bc1 1/2-1/2

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.09"]
[Round "7"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2411"]
[BlackElo "2520"]
[PlyCount "26"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Nf6 7. Bd3 Bg4 8. f3 Be6 9. Bg3 0-0 10. Nge2 c5 11. 0-0 Nc6 12. Kh1 Qd7 13. Qd2 cxd4 1/2-1/2

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.09"]
[Round "8"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Benitez Lozano, Javier"]
[Result "1/2-1/2"]
[ECO "C51"]
[WhiteElo "2520"]
[BlackElo "2367"]
[PlyCount "19"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Be7 6. d4 Na5 7. Be2 d6 8. Qa4+ c6 9. dxe5 dxe5 10. Nxe5 1/2-1/2

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.08"]
[Round "6"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Capo Vidal, Uriel"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2520"]
[BlackElo "2334"]
[PlyCount "91"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Qc7 5. 0-0 Nd4 6. Re1 a6 7. Bf1 e5 8. Nd5 Nxd5 9. exd5 d6 10. Nxd4 cxd4 11. c3 dxc3 12. bxc3 Be7 13. c4 0-0 14. d4 f5 15. Qb3 Kh8 16. Rb1 e4 17. Qb6 Qd7 18. Ba3 Rf6 19. Qb3 Bd8 20. f3 Ba5 21. Re2 Qf7 22. Rf2 exf3 23. Qxf3 f4 24. Bd3 h5 25. Be4 Bg4 26. Qd3 Re8 27. Rbf1 Qe7 28. Bf3 Qe3 29. Qxe3 fxe3 30. Re2 Bxf3 31. Rxf3 Bc3 32. Rxf6 gxf6 33. Bxd6 Bxd4 34. Bc7 Re7 35. Bd6 Re8 36. Kf1 Kg7 37. Rc2 Kf7 38. c5 b5 39. Ke2 a5 40. c6 b4 41. Rc4 Bb6 42. Bg3 f5 43. c7 Rc8 44. Be5 Ke7 45. Rc6 Ba7 46. Rh6 1-0

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.08"]
[Round "5"]
[White "Shabalov, Alexander"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "A79"]
[WhiteElo "2528"]
[BlackElo "2520"]
[PlyCount "58"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 c5 7. d5 e6 8. 0-0 exd5 9. cxd5 Re8 10. Nd2 Na6 11. f3 Nc7 12. a4 b6 13. Kh1 Rb8 14. Nc4 Ba6 15. Bd3 Qd7 16. Ne3 Bc8 17. Rb1 a6 18. b4 Nh5 19. Qc2 cxb4 20. Rxb4 a5 21. Rb1 Qd8 22. Nc4 Qh4 23. Ne2 Nxd5 24. g3 Qh3 25. Rg1 Nb4 26. Rxb4 axb4 27. Nxd6 Rd8 28. Qc7 Qd7 29. Qxb8 Ba6 0-1

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.07"]
[Round "3"]
[White "Ibarra Chami, Luis Fernando"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2447"]
[BlackElo "2520"]
[PlyCount "39"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. e4 d6 7. Be2 0-0 8. Be3 Nc6 9. 0-0 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. Bd3 a5 13. Rfe1 Ng4 14. Be2 Nf6 15. Bd3 Ng4 16. Bxg7 Kxg7 17. Be2 Nf6 18. Bd3 Ng4 19. Be2 Nf6 20. Bd3 1/2-1/2

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.07"]
[Round "4"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Henriquez Villagra, Cristobal"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2520"]
[BlackElo "2600"]
[PlyCount "71"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d3 Nf6 7. Be2 Bd6 8. 0-0 Bc7 9. Rd1 d4 10. Nb1 Nbd7 11. h4 h6 12. Qh3 Nc5 13. f4 e5 14. fxe5 Bxe5 15. Nd2 Ne6 16. Nc4 Qc7 17. Nxe5 Qxe5 18. Rf1 Qc5 19. Rf5 Qe7 20. Bd2 0-0-0 21. Raf1 Rdf8 22. Qf3 h5 23. Be1 Rh6 24. a3 Rg6 25. Qh3 Rh8 26. Bb4 Qc7 27. e5 Ng4 28. Bd6 Qa5 29. b4 Qd5 30. Bf3 Qa2 31. Rxf7 Ne3 32. Rc7+ Kd8 33. Rxb7 Qxc2 34. Rb8+ Kd7 35. Rxh8 Nxf1 36. Qf5 1-0

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.07"]
[Round "2"]
[White "Obregon Rivero, Juan Carlos"]
[Black "Sanchez Enriquez, Oscar Gerardo"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2520"]
[BlackElo "2342"]
[PlyCount "137"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. c3 a5 7. a4 h6 8. Be3 Ba7 9. Nbd2 0-0 10. Re1 Nh5 11. g3 Nf6 12. Nh4 Be6 13. Qf3 Qd7 14. Nf5 Bxf5 15. exf5 d5 16. Bb5 Qd6 17. Bxc6 bxc6 18. Bxa7 Rxa7 19. Re2 Rb7 20. b3 Nd7 21. d4 exd4 22. cxd4 Rb4 23. Qc3 Qf6 24. Rc1 Qxf5 25. Qxc6 Rxd4 26. Rce1 Nf6 27. Qxc7 Rc8 28. Qxa5 Rc2 29. Nf1 Rxe2 30. Rxe2 Qb1 31. Qc5 Rd1 32. Qc8+ Kh7 33. Qc2+ Ne4 34. Qxb1 Rxb1 35. a5 Rxb3 36. Ra2 Rb7 37. Nd2 Nc5 38. Rc2 Rb5 39. Ra2 Na6 40. Nf3 Kg6 41. Nd4 Rb4 42. Nc6 Rb1+ 43. Kg2 Kf6 44. Rc2 Ra1 45. Rb2 Nc5 46. Rb5 Ne4 47. Rxd5 Ra2 48. Rd4 Kf5 49. Rd5+ Kf6 50. Rd4 Kf5 51. Kf3 Ra3+ 52. Ke2 Nc3+ 53. Kf1 Ne4 54. Rd5+ Kf6 55. Re5 Nc3 56. Re3 Ra1+ 57. Kg2 Nd5 58. Rd3 Ke6 59. Nd8+ Ke5 60. Nxf7+ Ke4 61. Rd2 Nb4 62. Nd6+ Ke5 63. Nc4+ Ke4 64. f3+ Kf5 65. Rd6 Ra2+ 66. Kh3 h5 67. Rd4 Nc2 68. Rd2 g5 69. Rxc2 1-0

[Event "Mexico City Fenamac GM 1st"]
[Site "Mexico City"]
[Date "2021.05.07"]
[Round "1"]
[White "Yermolinsky, Alex"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2486"]
[BlackElo "2520"]
[PlyCount "109"]
[EventDate "2021.05.05"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[EventCategory "8"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Nf6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. Be2 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Be3 Bd7 10. Re1 Nxd4 11. Bxd4 Bc6 12. Bd3 a5 13. Qd2 Ng4 14. Bxg7 Kxg7 15. Be2 Nf6 16. Bf1 a4 17. Rad1 Qa5 18. g3 Rfd8 19. Nd5 Qxd2 20. Rxd2 Bxd5 21. exd5 Rd7 22. Re3 Rc7 23. Be2 Kf8 24. Kg2 Nd7 25. Ra3 Nb6 26. Rd4 Rac8 27. Rc3 Rc5 28. h4 h6 29. g4 g5 30. hxg5 hxg5 31. Rh3 Kg7 32. b3 axb3 33. axb3 Rh8 34. Rxh8 Kxh8 35. Re4 Rc7 36. Bd3 Kg7 37. Re3 Kf8 38. Bf5 Nd7 39. Bxd7 Rxd7 40. Kg3 b5 41. f4 bxc4 42. bxc4 Rc7 43. Re4 gxf4+ 44. Kxf4 Ra7 45. g5 Ra1 46. Kf5 Rf1+ 47. Kg4 Ke8 48. Kg3 Kd7 49. Kg4 Rg1+ 50. Kf5 Rg2 51. Kf4 e5+ 52. dxe6+ fxe6 53. Re3 Rc2 54. g6 Rg2 55. Rg3 1/2-1/2

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Andreikin, Dmitry"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "2725"]
[BlackElo "2520"]
[PlyCount "110"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[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 Nxd4 10. Bxd4 Bd7 11. Qd2 Bc6 12. f3 Nd7 13. Bxg7 Kxg7 14. Kh1 a5 15. b3 Qb6 16. Rab1 Rfc8 17. Bd3 Qc5 18. Rbc1 Nf6 19. Qb2 a4 20. b4 Qd4 21. Be2 a3 22. Qb3 Bd7 23. Rcd1 Qe5 24. f4 Qe6 25. Bf3 Qxc4 26. Qxc4 Rxc4 27. Nb1 Nxe4 28. Kg1 Rxb4 29. Rfe1 Bc6 30. Re3 f5 31. Nxa3 Rba4 32. Nc2 Rxa2 33. Nd4 Ra1 34. Ree1 Rxd1 35. Rxd1 Nc3 36. Re1 Bxf3 37. Rxe7+ Kf8 38. Rxh7 Bd5 39. h4 b5 40. h5 gxh5 41. Rxh5 Ra1+ 42. Kh2 Be4 43. Nxf5 Bxf5 44. Rxf5+ Ke7 45. Rh5 b4 46. Rh7+ Ke6 47. Rb7 Nd5 48. Kg3 Ra6 49. Kg4 Rb6 50. f5+ Kf6 51. Rh7 Ne3+ 52. Kf4 Nxf5 53. g4 Nd4 54. g5+ Kg6 55. Rh6+ Kg7 0-1

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Artemiev, Vladislav"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2709"]
[BlackElo "2520"]
[PlyCount "111"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 Nf6 6. c3 0-0 7. h3 a6 8. Bxc6 bxc6 9. d4 cxd4 10. cxd4 d6 11. Nc3 Nd7 12. Be3 Rb8 13. Qd2 c5 14. Rac1 Bb7 15. Bh6 cxd4 16. Bxg7 Kxg7 17. Qxd4+ Nf6 18. e5 dxe5 19. Qxd8 Rfxd8 20. Nxe5 Nd5 21. Ne4 Nf4 22. Rc7 Bxe4 23. Rxe4 Nd5 24. Rc2 Nb4 25. Rce2 Nxa2 26. Rf4 Rd1+ 27. Kh2 f5 28. Nc6 Re8 29. Ra4 Nc1 30. Rc2 Nd3 31. Rd4 e5 32. Rd7+ Kf6 33. Rxh7 e4 34. Na5 f4 35. Nb3 e3 36. fxe3 fxe3 37. Nd4 Nf2 38. Rc6+ Ke5 39. Nf3+ Kf5 40. Rf7+ Ke4 41. Rxa6 e2 42. Kg3 Nh1+ 43. Kh4 Ke3 44. Rxg6 Rh8+ 45. Kg5 Nf2 46. Re6+ Ne4+ 47. Kg6 Rg8+ 48. Rg7 Rxg7+ 49. Kxg7 Rg1 50. Kh6 Rxg2 51. Ne1 Kf2 52. Nd3+ Kf1 53. Rxe4 Rg3 54. Rf4+ Kg2 55. Ne1+ Kh1 56. Rf3 1-0

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Bodek, Michael H"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2397"]
[BlackElo "2520"]
[PlyCount "35"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 c5 6. d3 Nc6 7. Bg5 h6 8. Bd2 d5 9. cxd5 Nxd5 10. Qc1 Nxc3 11. Bxc3 Nd4 12. Nxd4 cxd4 13. Bd2 Qb6 14. Bxh6 Bxh6 15. Qxh6 Qxb2 16. 0-0 Qxe2 17. Rae1 Qxd3 18. Re4 1-0

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Chigaev, Maksim"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2631"]
[BlackElo "2520"]
[PlyCount "119"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 c5 5. b3 0-0 6. Bb2 Nc6 7. c4 b6 8. Ne5 Bb7 9. Nxc6 Bxc6 10. Bxc6 dxc6 11. Nc3 Qd7 12. Kg2 Rad8 13. d3 e5 14. Qc2 Ne8 15. Rad1 Nc7 16. e3 Ne6 17. Qe2 Rfe8 18. f3 h5 19. h4 f5 20. Qf2 Qe7 21. Ne2 Qf7 22. Kh2 Rd7 23. Rd2 Red8 24. Rfd1 e4 25. Bxg7 exd3 26. Bc3 dxe2 27. Qxe2 Rxd2 28. Rxd2 Rxd2 29. Qxd2 Qe7 30. Kg2 Qd8 31. Qxd8+ Nxd8 32. g4 Kf7 33. Kg3 Ne6 34. Be5 a6 35. a4 b5 36. a5 fxg4 37. fxg4 Ke7 38. gxh5 gxh5 39. Kf3 Kf7 40. Ke4 Kg6 41. Bg3 Kf7 42. Kf5 Nd8 43. Ke5 Nb7 44. e4 bxc4 45. bxc4 Nxa5 46. Kd6 Nxc4+ 47. Kxc5 Nd2 48. Kd4 a5 49. Kd3 Nf3 50. Ke3 Ng1 51. Bf2 Nh3 52. Bg3 a4 53. Be5 Ke6 54. Bc3 c5 55. Kf3 Ng1+ 56. Kf2 Nh3+ 57. Kg3 Ng1 58. Kf2 Nh3+ 59. Kg3 Ng1 60. Kf2 1/2-1/2

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Firouzja, Alireza"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2759"]
[BlackElo "2520"]
[PlyCount "164"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be3 cxd4 7. cxd4 e6 8. Nc3 Qd8 9. Bd3 Be7 10. 0-0 0-0 11. Rc1 b6 12. Bb1 Bb7 13. Re1 Rc8 14. Bg5 Nb4 15. a3 Nbd5 16. Qd3 Nxc3 17. bxc3 g6 18. Ne5 Nd7 19. Bxe7 Nxe5 20. Rxe5 Qxe7 21. c4 Rfd8 22. Qe3 Qd6 23. d5 exd5 24. h4 d4 25. Qf4 Rc5 26. Re8+ Kg7 27. Qxd6 Rxd6 28. Re7 Bc6 29. Rxa7 d3 30. Rd1 d2 31. Ba2 Be4 32. Bb3 b5 33. cxb5 Rxb5 34. Bxf7 Rb7 35. Rxb7 Bxb7 36. Bb3 Ba6 37. Rb1 Bd3 38. Rb2 Be2 39. f3 d1Q+ 40. Bxd1 Bxd1 41. Kf2 Ra6 42. Rb4 Rxa3 43. Rb7+ Kg8 44. Rb8+ Kf7 45. Rb7+ Kf6 46. Rxh7 Ra2+ 47. Kg3 Be2 48. Kf2 Bc4+ 49. Kg1 Be6 50. Rc7 Ra1+ 51. Kh2 Ra2 52. Kg3 Ra5 53. Rc3 Rd5 54. Re3 Rc5 55. Kf2 Rc4 56. g4 Rc2+ 57. Kg3 Rc1 58. Re4 Bd5 59. Rf4+ Ke5 60. Rf8 Rc3 61. Kf2 Kd6 62. Kg3 Ke7 63. Rf4 Ke6 64. g5 Ke5 65. Rf6 Be6 66. Kf2 Bf5 67. Kg3 Kd5 68. Kf2 Kd4 69. Kg3 Kd3 70. h5 Kd2 71. h6 Rxf3+ 72. Kxf3 Be4+ 73. Kf4 Bd5 74. Rxg6 Bc4 75. Ke5 Bd3 76. Kf6 Be2 77. h7 Ke1 78. h8Q Kf2 79. Qg8 Bf1 80. Qf8 Kg1 81. Qe8 Bg2 82. Qe7 Kf2 0-1

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Har Zvi, Ronen"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2513"]
[BlackElo "2520"]
[PlyCount "174"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. h3 Nf6 2. Rh2 d5 3. a3 c5 4. Rh1 Nc6 5. Ra2 e5 6. Ra1 Be6 7. d3 h6 8. Nd2 Bd6 9. g3 Qd7 10. Bg2 0-0-0 11. e4 d4 12. Nc4 Bc7 13. a4 g5 14. Ne2 Ng8 15. Bd2 Nge7 16. Nc1 f6 17. Nb3 b6 18. a5 Kb8 19. axb6 axb6 20. Qe2 Kb7 21. Ra3 h5 22. f3 h4 23. g4 Ra8 24. Kf2 Rxa3 25. Nxa3 Ra8 26. Ra1 Nb4 27. Qd1 Ng6 28. Bf1 Nf4 29. Bxf4 exf4 30. Nc4 Rxa1 31. Nxa1 Bxc4 32. dxc4 Be5 33. Bd3 Qa4 34. Qb1 Kc7 35. Ke2 Kd6 36. Nb3 Nxd3 37. Kxd3 b5 38. Nd2 Kc6 39. b3 Qa5 40. Qb2 b4 41. Qb1 Qa3 42. Ke2 d3+ 43. Kxd3 Bc3 44. Nf1 Kd6 45. Ke2 Ke6 46. Qd1 Ke7 47. Qd5 Bd4 48. Qb7+ Ke8 49. Qc6+ Ke7 50. Qc7+ Ke8 51. Qc6+ Kd8 52. Qd6+ Ke8 53. Qe6+ Kf8 54. Qd6+ Kg7 55. Qd7+ Kg8 56. Qe8+ Kg7 57. Qe7+ Kg8 58. Qe8+ Kg7 59. Ne3 Bxe3 60. Qe7+ Kg8 61. Qe8+ Kg7 62. Qe7+ Kg6 63. e5 fxe5 64. Qe8+ Kf6 65. Qd8+ Kf7 66. Qd7+ Kf6 67. Qc6+ Kf7 68. Qc7+ Ke6 69. Qb8 Ke7 70. Qc8 Kd6 71. Qc7+ Kxc7 72. Kd3 Kd6 73. Ke4 Qb2 74. Kf5 Qd4 75. Kf6 Qd2 76. Kg6 Qxc2+ 77. Kh5 Qxb3 78. Kg6 Qxc4 79. Kg7 Qe2 80. Kh7 Qxf3 81. Kh6 Qxh3 82. Kh7 Qxg4 83. Kh8 h3 84. Kg8 h2 85. Kf8 Qf5+ 86. Kg7 Qf6+ 87. Kg8 h1Q 1/2-1/2

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Har Zvi, Ronen"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2513"]
[BlackElo "2520"]
[PlyCount "93"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 c5 6. 0-0 Nc6 7. d4 cxd4 8. Nxd4 Qb6 9. Nc2 d6 10. Rb1 Be6 11. b3 Rfc8 12. Ne3 Rab8 13. Bb2 Qa5 14. Ba1 a6 15. a4 Nd7 16. Qd2 Qd8 17. Rfd1 Nc5 18. b4 Nd7 19. Ncd5 Nce5 20. Rdc1 Nb6 21. Nxb6 Qxb6 22. a5 Qd8 23. Bd5 Bxd5 24. Qxd5 Rc7 25. f4 Nd7 26. Bxg7 Kxg7 27. Rc2 Nf6 28. Qd4 e5 29. fxe5 dxe5 30. Qxe5 Re7 31. Qc3 Kg8 32. Qxf6 Rxe3 33. Qxd8+ Rxd8 34. b5 Ra3 35. bxa6 bxa6 36. c5 Rxa5 37. c6 Rc8 38. c7 Re5 39. Rd1 Ree8 40. Rd7 Kf8 41. Rcd2 Re7 42. Rd8+ Re8 43. Rxc8 Rxc8 44. Rd8+ Ke7 45. Rxc8 Kd7 46. Ra8 Kxc7 47. Rxa6 1-0

[Event "Titled Arena Apr 3rd"]
[Site "Lichess.org INT"]
[Date "2021.04.03"]
[Round "?"]
[White "Ivic, Velimir"]
[Black "Obregon Rivero, Juan Carlos"]
[Result "1-0"]
[ECO "B37"]
[WhiteElo "2581"]
[BlackElo "2520"]
[PlyCount "71"]
[EventDate "2021.04.03"]
[EventType "swiss (blitz)"]
[EventRounds "30"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Nc2 Nf6 7. Nc3 d6 8. Be3 Nd7 9. Be2 0-0 10. 0-0 Nc5 11. Rb1 Be6 12. f3 a5 13. Nd5 a4 14. b4 axb3 15. axb3 Bxd5 16. exd5 Ne5 17. Nd4 Ncd7 18. Qd2 Nc5 19. Rfe1 Ned7 20. Bf1 Nf6 21. Nb5 Re8 22. Bg5 Ncd7 23. Kh1 Qa5 24. b4 Qa2 25. Rb2 Qa4 26. Nc7 Nxd5 27. cxd5 Bxb2 28. Nxe8 Ba3 29. Rxe7 Bxb4 30. Qe2 Ne5 31. Nf6+ Kg7 32. Rxb7 Bc5 33. Ne4 Bd4 34. Bf6+ Kg8 35. Nxd6 Nxf3 36. Qxf3 1-0

