[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.12.02"]
[Round "9"]
[White "Ulloa, Ruben Guillermo"]
[Black "Miranda Mesa, Elier"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2150"]
[BlackElo "2490"]
[PlyCount "108"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. b3 b6 4. Bb2 Bb7 5. e5 Nc6 6. Na3 Nge7 7. Nc4 Nd5 8. g3 Be7 9. Bg2 0-0 10. 0-0 Qc7 11. Re1 b5 12. Ne3 Nxe3 13. dxe3 c4 14. Bd4 Rac8 15. bxc4 bxc4 16. c3 Qa5 17. Qc2 d6 18. exd6 Bxd6 19. e4 Rfd8 20. Rab1 Ba8 21. h4 Nxd4 22. Nxd4 Bc5 23. Red1 Rd7 24. Nf3 Rxd1+ 25. Rxd1 Bc6 26. Qb2 Bxe4 27. Ng5 Bd3 28. Bf1 h6 29. Bxd3 hxg5 30. Bb1 gxh4 31. Qb7 Rd8 32. Rxd8+ Qxd8 33. gxh4 g6 34. Qe4 Qd2 35. Qc2 Bxf2+ 36. Kg2 Qxc2 37. Bxc2 Bxh4 38. Ba4 Be1 39. Bb5 Bxc3 40. Bxc4 Kg7 41. Kf3 Kf6 42. Bb5 Ke7 43. Kf4 Bd2+ 44. Ke4 f5+ 45. Ke5 Bc3+ 46. Kf4 Kf6 47. Be8 e5+ 48. Kf3 e4+ 49. Kf4 g5+ 50. Ke3 Ke5 51. Bg6 f4+ 52. Ke2 f3+ 53. Ke3 Bd4+ 54. Kd2 e3+ 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.12.01"]
[Round "8"]
[White "Hernandez Guerrero, Gilberto Eduardo"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2527"]
[BlackElo "2150"]
[PlyCount "77"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 Nf6 5. d3 e6 6. Bd2 a6 7. Nf3 Nbd7 8. Qe2 Bb4 9. a3 b5 10. Bxe6 fxe6 11. Qxe6+ Kd8 12. Ng5 Ne5 13. Qxe5 Re8 14. Nf7+ Kd7 15. 0-0 Rxe5 16. Nxe5+ Ke8 17. Rfe1 Kf8 18. axb4 Qxb4 19. Re2 Qc5 20. Rae1 Bf5 21. h3 h5 22. b4 Qxb4 23. g4 hxg4 24. hxg4 Bxg4 25. Ne4 Qa4 26. Nxf6 Bxe2 27. Nfd7+ Kg8 28. Rxe2 Qxc2 29. f4 b4 30. Rg2 Qd1+ 31. Kh2 a5 32. f5 Qh5+ 33. Kg1 Qd1+ 34. Kh2 Rd8 35. f6 Qh5+ 36. Kg1 Qd1+ 37. Kh2 Qh5+ 38. Kg1 Qd1+ 39. Kh2 1/2-1/2

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.30"]
[Round "7"]
[White "Ulloa, Ruben Guillermo"]
[Black "Ticona Rocabado, Licael Roderick"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2150"]
[BlackElo "2412"]
[PlyCount "63"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 7. 0-0 Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bb3 Bd6 12. Re1 Bxh2+ 13. Kh1 h5 14. Nf5 Be5 15. f4 exf5 16. Rxe5+ Be6 17. Bxe6 fxe6 18. Rxe6+ Kf7 19. Qd5 Nf6 20. Qb3 Kg6 21. Qg3+ Kf7 22. Qb3 Kg6 23. Qg3+ Kh7 24. Qg5 Rhe8 25. Qxf5+ Kh8 26. Re5 Qb6 27. Be3 Qxb2 28. Re1 Qc3 29. Bf2 Kg8 30. Rxe8+ Rxe8 31. Rxe8+ Nxe8 32. Qd5+ 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.29"]
[Round "6"]
[White "Ulloa, Ruben Guillermo"]
[Black "Berenstein, Gustavo"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2150"]
[BlackElo "1619"]
[PlyCount "79"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 b6 6. Nbd2 a5 7. Ne5 Bd6 8. 0-0 0-0 9. f4 Ba6 10. Bxa6 Nxa6 11. Qf3 Nd7 12. Qh3 f5 13. Ndf3 Rf6 14. Ng5 Nf8 15. Bd2 Qe8 16. Be1 Rh6 17. Qf3 Bxe5 18. fxe5 Qe7 19. h4 Ng6 20. g3 Nc7 21. a4 Nf8 22. c4 Rg6 23. cxd5 Nxd5 24. e4 fxe4 25. Qxe4 cxd4 26. Nxh7 Rh6 27. Ng5 Rc8 28. Nf7 Rh7 29. Nd6 Rc7 30. Bd2 Ne3 31. Bxe3 dxe3 32. Rf7 Qd8 33. Raf1 Rxf7 34. Rxf7 Rh6 35. Qxe3 Ng6 36. Qe4 Nf8 37. Qg4 Rg6 38. Rxf8+ Qxf8 39. Qxg6 Qf3 40. Qxe6+ 1-0

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.28"]
[Round "5"]
[White "Avendano Porras, Rodrigo"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1864"]
[BlackElo "2150"]
[PlyCount "94"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Bc4 e6 7. Bd2 Bb4 8. Qe2 0-0 9. 0-0-0 Nc6 10. h3 Nd5 11. Nxd5 exd5 12. Bb3 Rfe8 13. Be3 Rad8 14. Nh4 Bc8 15. Qf3 Be7 16. Nf5 Bxf5 17. Qxf5 Bf6 18. g4 Qb6 19. c3 Ne7 20. Qd3 Bh4 21. Rhg1 h6 22. g5 hxg5 23. Qd2 f6 24. Bc2 Kf7 25. f4 g6 26. fxg5 f5 27. Bf4 Nc8 28. Be5 Nd6 29. Qf4 Nc4 30. Bb3 Nxe5 31. Qxh4 Rh8 32. Qg3 Nc6 33. Rde1 Na5 34. Qe5 Nxb3+ 35. axb3 Qd6 36. Qg3 Qxg3 37. Rxg3 Rde8 38. Rge3 Re4 39. Kd2 Rhh4 40. R1e2 c6 41. Re1 Rh5 42. Rg3 Ke6 43. Ra1 a6 44. Ra4 f4 45. Rg1 Rxh3 46. Raa1 Rh2+ 47. Kc1 Ree2 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.27"]
[Round "4"]
[White "Ulloa, Ruben Guillermo"]
[Black "Bravo Mallco, Kate Azumi"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "2150"]
[BlackElo "2004"]
[PlyCount "106"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. c3 e6 5. Bd3 Nbd7 6. Nbd2 Qc7 7. 0-0 Be7 8. Re1 0-0 9. e4 dxe4 10. Nxe4 b6 11. Bg5 Bb7 12. Bh4 Rfd8 13. Bg3 Qc6 14. Rc1 Nxe4 15. Bxe4 Qc8 16. Bb1 Qc6 17. Qd3 Nf8 18. Qf1 Bf6 19. Be4 Qc8 20. Bxb7 Qxb7 21. dxc5 bxc5 22. b3 Ng6 23. Qc4 Qd5 24. Qa4 Rac8 25. h4 Ne7 26. Be5 Bxe5 27. Rxe5 Qb7 28. Qc4 Qc7 29. Rce1 Ng6 30. R5e4 Rd5 31. g3 Rcd8 32. Kg2 h6 33. Qa4 Qb7 34. Kh2 Rd3 35. R1e3 Rd1 36. Kg2 Ne7 37. Qc4 R1d5 38. Kh2 Nf5 39. Re1 Nd6 40. Qe2 Nxe4 41. Qxe4 R5d7 42. Qf4 Rd3 43. Re3 Rxe3 44. Qxe3 Rd1 45. c4 Qc6 46. Qe2 Qd6 47. Qe4 Qd3 48. Qa8+ Kh7 49. g4 Qd6+ 50. Kg2 Qf4 51. g5 Qg4+ 52. Kh2 Rf1 53. Ne5 Rxf2+ 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.26"]
[Round "3"]
[White "Guevara Ruiz, Santiago Jose"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1885"]
[BlackElo "2150"]
[PlyCount "94"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Bd2 e6 7. Bc4 Bb4 8. a3 Bxc3 9. Bxc3 Qb6 10. Bb4 Nc6 11. Bc3 Ne4 12. 0-0 0-0 13. Qe2 Rad8 14. Rfd1 Nxc3 15. bxc3 Qa5 16. Nh4 Qxc3 17. Nxf5 exf5 18. d5 Ne5 19. Bb3 a6 20. Qe1 Qxe1+ 21. Rxe1 Rfe8 22. Rad1 Nd7 23. f3 Rxe1+ 24. Rxe1 Kf8 25. Re3 Nc5 26. Ba2 f4 27. Rc3 b6 28. Kf2 Rd6 29. a4 a5 30. Rc4 g5 31. Rd4 Rh6 32. Bb3 Ke7 33. h3 Rd6 34. Ke2 Rd8 35. Ba2 Kd6 36. Kd2 Re8 37. Bc4 Re5 38. Ba2 Re3 39. c3 h6 40. h4 f6 41. h5 f5 42. Rc4 Rd3+ 43. Ke2 Rxd5 44. Bb1 Nd7 45. Bc2 Nf6 46. Rd4 Nxh5 47. Bxf5 Ng3+ 0-1

[Event "Iberoamerican-ch 9th"]
[Site "Panama City"]
[Date "2023.11.26"]
[Round "2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Flores Quillas, Diego Saul Rodrigo"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2150"]
[BlackElo "2414"]
[PlyCount "182"]
[EventDate "2023.11.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB49_2023"]
[SourceDate "2023.12.06"]
[SourceVersion "1"]
[SourceVersionDate "2023.12.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 b6 5. 0-0 Bb7 6. Nbd2 Be7 7. dxc5 bxc5 8. e4 d6 9. Re1 Nc6 10. c3 0-0 11. Nf1 Rb8 12. Ng3 Ba8 13. Qe2 Nd7 14. Bf4 Qb6 15. Rab1 Rfd8 16. Bg5 Bxg5 17. Nxg5 Nce5 18. Bc2 c4 19. b4 cxb3 20. axb3 Rbc8 21. c4 a5 22. Kh1 h6 23. Nh3 Nc6 24. f4 Nd4 25. Qf2 Qc5 26. Rbd1 e5 27. fxe5 dxe5 28. Nf5 Nxf5 29. Qxf5 Nf8 30. Rf1 Qc7 31. Nf2 Ne6 32. Ng4 Nd4 33. Qf2 Rb8 34. Rb1 Rb6 35. Ne3 Nxc2 36. Qxc2 Rd4 37. Qa2 Bxe4 38. Rb2 Rg6 39. Rbf2 Rd3 40. Qe2 Qb7 41. Nd5 Bxd5 42. cxd5 Qxd5 43. Rxf7 Rd2 44. Qf3 Qxf3 45. R7xf3 Rgxg2 46. Rh3 Rge2 47. Rg1 Kh7 48. Rc1 e4 49. Kg1 Rd3 50. Rh5 Rxb3 51. Rxa5 Rh3 52. Rc4 Rhxh2 53. Rxe4 Rxe4 54. Kxh2 g5 55. Ra6 Rf4 56. Kh3 Kg7 57. Kg3 Rf6 58. Ra8 h5 59. Ra7+ Kg6 60. Ra8 h4+ 61. Kg4 Rf4+ 62. Kh3 Rf3+ 63. Kg2 Rb3 64. Ra5 Kh5 65. Ra4 Rb5 66. Rc4 Rf5 67. Ra4 g4 68. Ra8 h3+ 69. Kg3 Rf3+ 70. Kh2 Kg5 71. Rg8+ Kf4 72. Rf8+ Ke3 73. Ra8 Rf2+ 74. Kg1 g3 75. Re8+ Kd2 76. Rd8+ Kc3 77. Rc8+ Kd4 78. Rd8+ Ke5 79. Re8+ Kd6 80. Rd8+ Ke7 81. Rd1 Re2 82. Ra1 Ke6 83. Ra6+ Ke5 84. Ra5+ Ke4 85. Ra4+ Kf3 86. Ra3+ Re3 87. Ra1 g2 88. Kh2 Kf2 89. Ra2+ Re2 90. Ra1 Re1 91. Ra2+ Kf1 0-1

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.10"]
[Round "9"]
[White "Ulloa, Ruben Guillermo"]
[Black "Cortes Franco, Adrian Ignacio"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2150"]
[BlackElo "1364"]
[PlyCount "117"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. e5 Bf5 4. c3 f6 5. f4 e6 6. Be2 fxe5 7. fxe5 Bxb1 8. Rxb1 Qh4+ 9. Kf1 g6 10. Nf3 Qd8 11. Ng5 Qd7 12. Bg4 Nd8 13. h4 h5 14. Bh3 Nh6 15. g3 Nf5 16. Kg2 Bh6 17. Bxf5 exf5 18. e6 Qe7 19. Re1 Kf8 20. Qf3 c6 21. Bf4 Kg8 22. Re2 a5 23. a4 b6 24. Rbe1 Ra7 25. Qe3 Bf8 26. Nf3 Qe8 27. Bg5 Be7 28. Qe5 Rh7 29. b3 Rg7 30. c4 Bb4 31. Rc1 dxc4 32. bxc4 Nb7 33. d5 Bd6 34. Qb2 Ra6 35. Nd4 cxd5 36. cxd5 Nc5 37. Nb5 Bb8 38. Qc2 Qc8 39. e7 Qe8 40. d6 Kh7 41. Kh2 Rg8 42. Qc4 Ra8 43. Qd5 Ra6 44. Rxc5 bxc5 45. d7 Bxg3+ 46. Kxg3 Qb8+ 47. Bf4 Qa8 48. Qxa8 Raxa8 49. e8Q Raxe8 50. dxe8Q Rxe8 51. Rxe8 c4 52. Re7+ Kg8 53. Rc7 c3 54. Nxc3 Kh8 55. Nd5 g5 56. hxg5 h4+ 57. Kf3 h3 58. Nf6 h2 59. Rh7# 1-0

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.09"]
[Round "6"]
[White "Okuno Okuno, Rion"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1853"]
[BlackElo "2150"]
[PlyCount "100"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nf3 Nc6 4. d4 Bg4 5. Be2 0-0-0 6. c4 Qa5+ 7. Bd2 Qa6 8. d5 Bxf3 9. Bxf3 Nd4 10. Na3 e6 11. 0-0 Bxa3 12. bxa3 Nf6 13. Bc3 Nxf3+ 14. Qxf3 exd5 15. cxd5 Nxd5 16. Bxg7 Rhg8 17. Qxf7 Qxa3 18. Rac1 Qd6 19. Rfe1 Qd7 20. Qxd7+ Rxd7 21. Bh6 Rd6 22. Bd2 b6 23. f4 c5 24. g3 Kd7 25. Kf2 Rc8 26. Bc3 b5 27. Be5 Ra6 28. Re2 c4 29. Rd1 Kc6 30. f5 Rf8 31. g4 Rf7 32. f6 b4 33. Red2 Ra5 34. g5 c3 35. Re2 Rc5 36. h4 Rc4 37. h5 Rf8 38. g6 hxg6 39. hxg6 Nxf6 40. g7 Ng4+ 41. Kg3 Rg8 42. Rd6+ Kc5 43. Rd7 Nxe5 44. Rxe5+ Kc6 45. Ree7 a5 46. Rc7+ Kd6 47. Rcd7+ Kc5 48. Rc7+ Kd5 49. Rcd7+ Kc5 50. Rc7+ Kd6 1/2-1/2

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.09"]
[Round "7"]
[White "Ulloa, Ruben Guillermo"]
[Black "Sanchez Bermudez, Rogelio Oscar"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2150"]
[BlackElo "1762"]
[PlyCount "87"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. 0-0 b5 6. Bb3 d6 7. h3 Nf6 8. c3 0-0 9. d4 Bb6 10. a4 Bb7 11. Re1 h6 12. axb5 axb5 13. Rxa8 Qxa8 14. Na3 exd4 15. cxd4 Na5 16. d5 Ba6 17. Bc2 b4 18. Nb1 Qa7 19. Be3 Bxe3 20. Rxe3 Nc4 21. Rb3 Rb8 22. Nd4 Ne5 23. Nf5 Kh7 24. Qd2 Qc5 25. Rg3 Ng6 26. b3 Nh5 27. Re3 Re8 28. Qd1 Nf6 29. Nd2 Bc8 30. Ng3 Bd7 31. Nf3 Ra8 32. Kh2 Ra2 33. Nd4 Qa7 34. Rf3 Ne5 35. Rxf6 gxf6 36. Nh5 c5 37. dxc6 Bxc6 38. Nxc6 Qxf2 39. Nd4 Kg6 40. Ng3 Qf4 41. Qh5+ Kh7 42. Qf5+ Qxf5 43. Ngxf5 Ra6 44. Ne7 1-0

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.08"]
[Round "4"]
[White "Lombardo Batista, Elias"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1755"]
[BlackElo "2150"]
[PlyCount "78"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 h6 5. 0-0 Bd6 6. d4 0-0 7. Nc3 Nc6 8. b3 b6 9. Nb5 Bb7 10. cxd5 exd5 11. Nxd6 cxd6 12. Ba3 a5 13. Rc1 b5 14. Rc2 b4 15. Bb2 Qd7 16. Ne1 Rfe8 17. Nd3 Ne4 18. Nf4 Na7 19. f3 Nf6 20. Bh3 Qe7 21. Qd3 Bc6 22. Rfc1 g5 23. Ng2 Bb5 24. Qf5 Bd7 25. Rc7 Bxf5 26. Rxe7 Rxe7 27. Bxf5 Rxe2 28. Rc2 Rae8 29. Kf1 Rxc2 30. Bxc2 Nb5 31. Bd3 Nc7 32. Kf2 g4 33. Bc1 gxf3 34. Kxf3 Ne6 35. Bxh6 Nxd4+ 36. Kf4 Re5 37. g4 Ne4 38. g5 Ne6+ 39. Kg4 Nf2+ 0-1

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.08"]
[Round "5"]
[White "Ulloa, Ruben Guillermo"]
[Black "Strikovic, Aleksa"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2150"]
[BlackElo "2455"]
[PlyCount "122"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 0-0 7. 0-0 exd4 8. Nxd4 Ne5 9. Ba2 Nc6 10. Bf4 Nb4 11. Bb1 c6 12. h3 a5 13. Nce2 d5 14. c3 Na6 15. e5 Ne4 16. f3 Nec5 17. g4 g6 18. Kg2 Re8 19. Bg3 Bf8 20. Re1 Bg7 21. Ng1 Nc7 22. b4 axb4 23. cxb4 N5e6 24. Nge2 f6 25. f4 fxe5 26. fxe5 Bd7 27. Bc2 Nxd4 28. Nxd4 Ne6 29. Nf3 Bh6 30. Rb1 Rf8 31. Bd3 c5 32. b5 b6 33. Bc2 Bc8 34. Rf1 Bb7 35. h4 Bf4 36. h5 gxh5 37. Bf5 Qe7 38. Bh4 Qf7 39. Bf6 d4 40. Rh1 Ng7 41. Qd3 Nxf5 42. Qxf5 Bxe5 43. Bxe5 Qxf5 44. gxf5 Rxf5 45. Rhe1 Bxf3+ 46. Kg3 Rxa4 47. Bc7 d3 48. Re8+ Kf7 49. Rd8 h4+ 50. Kh3 Bg4+ 51. Kxh4 Be2+ 52. Kh3 Rg4 53. Rd7+ Kg6 54. Rd6+ Kh5 55. Rd7 h6 56. Bg3 c4 57. Rc1 Rf3 58. Rd5+ Rg5 59. Rxg5+ hxg5 60. Rh1 d2 61. Kg2+ Kg4 0-1

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.07"]
[Round "3"]
[White "Ulloa, Ruben Guillermo"]
[Black "Georgiev, Vladimir"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2150"]
[BlackElo "2408"]
[PlyCount "144"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. a4 0-0 7. h3 c6 8. a5 Nxe4 9. Nxe4 d5 10. Ng3 dxc4 11. dxe5 Bb4+ 12. Bd2 Qe7 13. Nf5 Qc5 14. Bxb4 Qxb4+ 15. Qd2 Qxb2 16. Qg5 Qc3+ 17. Kf1 g6 18. Rd1 f6 19. Ne7+ Kg7 20. exf6+ Nxf6 21. Nd4 Rf7 22. Qe5 Qb4 23. Nxc8 Rxc8 24. Ne6+ Kg8 25. Nd8 Rxd8 26. Rxd8+ Kg7 27. g4 Re7 28. Qa1 c3 29. Rd3 Nd5 30. Rh2 Qf4 31. Kg1 Re2 32. Qb1 b5 33. axb6 axb6 34. Rg2 Qa4 35. Qd1 Qxc2 36. Rxd5 cxd5 37. Qd4+ Kf8 38. Rg3 Re1+ 39. Kh2 Qe4 40. Qf6+ Kg8 41. Qd8+ Kg7 42. Qc7+ Qe7 43. Qxc3+ Qe5 44. Qc6 Qf6 45. Qc2 d4 46. Kg2 Qd6 47. Rf3 Re7 48. Qb3 Qc6 49. Qb4 Qc5 50. Qd2 Qd5 51. Kg3 Qe5+ 52. Kg2 Qe4 53. Kg3 Qe5+ 54. Kg2 Qd6 55. Rf4 Rd7 56. Rf3 b5 57. Qb2 Qd5 58. Kg3 Rc7 59. Qb4 Qc5 60. Qb2 Qe5+ 61. Kg2 Rc3 62. Qb4 Rxf3 63. Kxf3 g5 64. Qb2 Qd5+ 65. Ke2 Qc4+ 66. Kd2 b4 67. Qb1 Qc3+ 68. Ke2 b3 69. Qg1 d3+ 70. Ke3 b2 71. Ke4 Qc1 72. Qh2 Qf4+ 0-1

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.07"]
[Round "2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Pico Brito, Miguel"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2150"]
[PlyCount "59"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Bd3 e6 5. Bxf5 exf5 6. Qd3 Qd7 7. Ne5 Qe6 8. Qb5+ c6 9. Qxb7 Bd6 10. Qxa8 0-0 11. Qxa7 Bxe5 12. dxe5 Qxe5 13. Qd4 Qd6 14. Qd3 Qe6 15. Nc3 Ne4 16. 0-0 Nd7 17. f3 Nec5 18. Qd4 Qg6 19. a4 Ne6 20. Qh4 f4 21. e4 Qf6 22. Qxf6 Nxf6 23. exd5 cxd5 24. Rd1 d4 25. Nb5 g5 26. Nxd4 Rd8 27. c3 Nc5 28. a5 Nb3 29. Ra3 Nc5 30. b4 1-0

[Event "Panama op 4th"]
[Site "Panama City"]
[Date "2023.11.06"]
[Round "1"]
[White "Amelunge Moreno, Oscar Alejandro"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "E60"]
[WhiteElo "1161"]
[BlackElo "2150"]
[PlyCount "56"]
[EventDate "2023.11.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 c5 6. c4 cxd4 7. Nxd4 a6 8. Nc3 Qc7 9. Nd5 Nxd5 10. cxd5 Qb6 11. Nb3 d6 12. e4 Nd7 13. Be3 Qb4 14. Bd4 Nf6 15. Qd2 Qb5 16. Qa5 Qd7 17. Rac1 Qg4 18. f3 Qh5 19. g4 Qh6 20. Rc7 Nxg4 21. fxg4 Bxd4+ 22. Nxd4 Qe3+ 23. Kh1 Qxd4 24. Rxe7 Bxg4 25. Qc7 Be2 26. Rfxf7 Qd1+ 27. Bf1 Bf3+ 28. Rxf3 Qxf3+ 0-1

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.26"]
[Round "7.3"]
[White "Arias Serrano, Luis Antonio"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2115"]
[BlackElo "2180"]
[PlyCount "65"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d5 3. Bb2 e6 4. c4 c5 5. cxd5 Nxd5 6. Nc3 Nc6 7. e3 Nf6 8. Qc2 Nb4 9. Qb1 Be7 10. a3 Nc6 11. Qc2 0-0 12. h4 e5 13. Ng5 g6 14. Bd3 Nh5 15. Be2 Ng7 16. g4 a6 17. Nce4 h6 18. 0-0-0 b5 19. f4 f5 20. Nxc5 hxg5 21. hxg5 Bxc5 22. Qxc5 Be6 23. Bf3 Na5 24. Qxe5 Nxb3+ 25. Kc2 Rc8+ 26. Bc3 Rc7 27. Rh6 Nc5 28. Rxg6 Bb3+ 29. Kb1 Rff7 30. Rh1 Qd3+ 31. Ka1 Be6 32. Rgh6 Nb3+ 33. Kb2 1-0

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.26"]
[Round "6.5"]
[White "Ulloa, Ruben Guillermo"]
[Black "Chung Hurtado, Yaleika"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2180"]
[BlackElo "1734"]
[PlyCount "39"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nd7 8. Qd2 c6 9. 0-0-0 Qa5 10. Kb1 0-0 11. Nd4 Nf6 12. Bd3 Bd7 13. h4 b5 14. Bg5 c5 15. Nf5 Bxf5 16. Bxf5 Rad8 17. Rhe1 Rfe8 18. Rxe7 Rxe7 19. Bxf6 gxf6 20. Qh6 1-0

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.25"]
[Round "5.2"]
[White "Alfaro Caracas, William"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "D63"]
[WhiteElo "2103"]
[BlackElo "2180"]
[PlyCount "99"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 Be7 5. Bg5 Nbd7 6. e3 h6 7. Bh4 0-0 8. Rc1 c5 9. dxc5 dxc4 10. c6 Nb6 11. Qxd8 Bxd8 12. Ne5 bxc6 13. Nxc4 c5 14. Be2 Bb7 15. 0-0 Nxc4 16. Bxc4 Nd5 17. Bg3 Nb6 18. Be2 Bf6 19. Rfd1 c4 20. Bd6 Rfc8 21. Ba3 Bc6 22. Bc5 Rab8 23. Bd4 e5 24. Bxb6 Rxb6 25. Bxc4 Rxb2 26. Nd5 Bd8 27. Ba6 Bb7 28. Rxc8 Bxc8 29. Bxc8 Ba5 30. a4 Ra2 31. Bd7 a6 32. h4 h5 33. g3 Kh7 34. Kg2 Kh6 35. Be8 f6 36. e4 Bd2 37. Kf3 Rb2 38. Nc7 a5 39. Nd5 Ra2 40. Rb1 Ra3+ 41. Kg2 Ra2 42. Rb3 Be1 43. Rf3 Kh7 44. Rf5 Kg8 45. Rf3 Kf8 46. Bxh5 Rxa4 47. Rb3 Bb4 48. Bg6 Ra3 49. Rb1 Ra4 50. Rc1 1-0

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.24"]
[Round "3.1"]
[White "Leon Archibaldo, Orlando Andres"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2220"]
[BlackElo "2180"]
[PlyCount "105"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Qd3 a6 7. Nxc6 bxc6 8. Qg3 d6 9. Bd3 Nf6 10. 0-0 e5 11. Bc4 a5 12. b3 h6 13. f4 Nh5 14. Qf3 Nxf4 15. Bxf4 exf4 16. Qxf4 Ra7 17. Rf2 g5 18. Qe3 Qb8 19. Raf1 Rh7 20. Kh1 Re7 21. Qd3 Rg7 22. Rf6 Be6 23. Rxh6 Rg8 24. Rh7 Bg7 25. Bxe6 Rxe6 26. Ne2 Qb4 27. Qa6 Kf8 28. Qc8+ Re8 29. Qf5 Re7 30. Ng3 Qb5 31. Qc8+ Re8 32. Qd7 Re7 33. Qd8+ Re8 34. Qxd6+ Re7 35. c4 Qe5 36. Qxc6 Rh8 37. Rxh8+ Bxh8 38. Nf5 Re6 39. Qc8+ Re8 40. Qd7 Bf6 41. Qd6+ Qxd6 42. Nxd6 Re6 43. c5 Ke7 44. g4 Re5 45. Rf5 Ke6 46. Kg2 Ke7 47. Kf3 Re6 48. a3 Bb2 49. Rxf7+ Kd8 50. Nc4 Bd4 51. Nxa5 Bxc5 52. Nb7+ Ke8 53. Nxc5 1-0

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.24"]
[Round "4.3"]
[White "Ulloa, Ruben Guillermo"]
[Black "Lievano, Luis"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2180"]
[BlackElo "2007"]
[PlyCount "41"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. 0-0 h6 7. b3 g5 8. c4 Bg7 9. Nc3 Nd7 10. Ne1 Qb6 11. c5 Qc7 12. f4 0-0-0 13. b4 f6 14. b5 Nxe5 15. fxe5 fxe5 16. bxc6 bxc6 17. Be3 e4 18. Rb1 Kd7 19. g4 Bg6 20. Qa4 h5 21. Nb5 1-0

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.23"]
[Round "1.3"]
[White "Sanchez, Steven"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2031"]
[BlackElo "2180"]
[PlyCount "76"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nc3 e6 5. Nb5 Na6 6. c3 Be7 7. Nf3 0-0 8. Be2 Nh5 9. Bg3 c4 10. b3 Bd7 11. bxc4 dxc4 12. Bxc4 Qa5 13. Qb3 Rfc8 14. Nd2 Rxc4 15. Nxc4 Qxb5 16. Ne5 Rc8 17. Rb1 Qa5 18. 0-0 Nxg3 19. fxg3 Ba4 20. Qxb7 Rc7 21. Qf3 f6 22. Qa8+ Bf8 23. c4 Qd2 24. Qf3 Qxa2 25. Rb7 Bc6 26. Nxc6 Rxb7 27. Nd8 Re7 28. c5 Nb4 29. Nb7 Qd5 30. Nd6 a5 31. Ra1 Rd7 32. Nb5 Qc4 33. Qf1 Nd3 34. c6 Rd5 35. Na3 Bxa3 36. Rxa3 Rf5 37. Qa1 Nc1 38. h3 Qf1+ 0-1

[Event "Pan American-ch Amateur U2300"]
[Site "San Jose"]
[Date "2019.10.23"]
[Round "2.2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Herrmann, Roman"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2180"]
[BlackElo "2099"]
[PlyCount "86"]
[EventDate "2019.10.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 Qe7 10. Bh6 f6 11. Nh2 Nf8 12. Bxg7 Qxg7 13. f4 exf4 14. Qxf4 Ne6 15. Qe3 Nd4 16. 0-0-0 Be6 17. Kb1 0-0-0 18. Rdf1 Rhf8 19. g4 Qc7 20. Rf2 Qa5 21. Qe1 Nb5 22. a3 c4 23. Nxb5 Qxb5 24. dxc4 Qxc4 25. b3 Qc5 26. Ka2 Rd1 27. Qxd1 Qxf2 28. Kb1 Rd8 29. Qf3 Rd2 30. Qxf2 Rxf2 31. Nf1 f5 32. gxf5 gxf5 33. exf5 Bxf5 34. Ne3 Be4 35. Re1 Bg6 36. Kb2 Rh2 37. Rf1 Rxh3 38. Ng4 Rg3 39. Ne5 Rg2 40. Rf8+ Kc7 41. Nxg6 hxg6 42. Rf7+ Kb6 43. b4 g5 1/2-1/2

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.17"]
[Round "8"]
[White "Morales Garcia, Alexei"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2145"]
[BlackElo "2238"]
[PlyCount "135"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nbd2 d5 5. e3 0-0 6. h3 c5 7. c3 b6 8. Bd3 Nc6 9. Ne5 Bb7 10. Nxc6 Bxc6 11. Be5 e6 12. 0-0 Qe7 13. a4 Bh6 14. a5 Nd7 15. Nf3 f6 16. Bf4 Bg7 17. c4 e5 18. dxe5 fxe5 19. Bg5 Qf7 20. cxd5 Bxd5 21. e4 Be6 22. Be3 h6 23. Bb5 Rfd8 24. Qc1 Kh7 25. Bg5 Rdc8 26. Rd1 c4 27. axb6 axb6 28. Rxa8 Rxa8 29. Bc6 Rc8 30. Bd5 b5 31. Qc3 Nc5 32. Qc2 Bxd5 33. Rxd5 Qb7 34. Be3 Nd3 35. Qd2 b4 36. h4 b3 37. h5 gxh5 38. Nh4 Rc7 39. Qe2 Qc6 40. Qxh5 Qf6 41. Nf5 Qg6 42. Qe2 Bf8 43. Rd8 Be7 44. Rb8 Bc5 45. Bxc5 Nxc5 46. Rd8 Ne6 47. Rd6 Ra7 48. Qd1 c3 49. Rd7+ Rxd7 50. Qxd7+ Ng7 51. bxc3 h5 52. Qb7 Qg5 53. g3 h4 54. Nxh4 Qc1+ 55. Kg2 b2 56. Nf5 Qg5 57. Nxg7 Qxg7 58. Qxb2 Qc7 59. Qb4 Kg6 60. c4 Kg5 61. c5 Qc6 62. Kf3 Qf6+ 63. Kg2 Kg4 64. Qc3 Qh8 65. c6 Qh3+ 66. Kg1 Qh8 67. c7 Qc8 68. Qxe5 1-0

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.16"]
[Round "7"]
[White "Fernandez Garcia, Arturo"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2105"]
[BlackElo "2238"]
[PlyCount "153"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 Be7 9. f3 b5 10. Nxc6 dxc6 11. g4 h6 12. h4 e5 13. Be2 Be6 14. g5 Rd8 15. Qe1 Rxd1+ 16. Bxd1 hxg5 17. hxg5 Rxh1 18. Qxh1 Ng8 19. Qg1 Bd8 20. Qh2 Be7 21. Qg1 Qd6 22. Be2 Bd7 23. Qg3 Qe6 24. Kb1 Bb4 25. Nd1 Ne7 26. Nf2 Ng6 27. Nd3 Bd6 28. Bf1 Qe7 29. Bh3 c5 30. a3 c4 31. Bxd7+ Kxd7 32. Qh3+ Kc7 33. Nf2 Nf8 34. Qh8 g6 35. Ng4 Kb7 36. Nf6 Qe6 37. Nd5 Nd7 38. Qd8 Bb8 39. Ne7 Nf8 40. Nd5 Qd6 41. Qe8 Nd7 42. Qxf7 Bc7 43. Qe8 Nb8 44. Ne7 Bd8 45. Nxg6 Qd1+ 46. Ka2 b4 47. Qf7+ Bc7 48. Qxc4 Nc6 49. axb4 Qd6 50. b5 Nb4+ 51. Kb3 a5 52. Nh4 Qd1 53. Bc5 Nxc2 54. Qd5+ Qxd5+ 55. exd5 Nd4+ 56. Bxd4 exd4 57. g6 Be5 58. Nf5 d3 59. g7 a4+ 60. Kxa4 Bxg7 61. Kb3 Bf6 62. Ne3 Kb6 63. Kc4 Bxb2 64. Kxd3 Kxb5 65. Ke4 Kc5 66. f4 Bc1 67. Ng2 Kd6 68. f5 Ke7 69. Ne3 Ba3 70. Nc4 Bb4 71. Kf4 Kf6 72. d6 Bc5 73. Ke4 Bb4 74. d7 Ke7 75. Ne5 Bd6 76. f6+ Kd8 77. Nf7+ 1-0

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.15"]
[Round "6"]
[White "Ulloa, Ruben Guillermo"]
[Black "Borges Feria, Yasel"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2238"]
[BlackElo "2432"]
[PlyCount "93"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 g6 6. 0-0 Bg7 7. Nc3 Ne4 8. Bd2 0-0 9. b4 d6 10. Rc1 Nd7 11. d5 Nxd2 12. Nxd2 e5 13. e3 f5 14. Na4 a5 15. a3 e4 16. Re1 Ne5 17. Bf1 axb4 18. axb4 h5 19. Be2 h4 20. Nc3 Bc8 21. Nb3 hxg3 22. hxg3 Nf7 23. Kg2 Ng5 24. Rh1 Qe7 25. Nd4 Bd7 26. Ncb5 Rfc8 27. Qb3 Bxb5 28. Nxb5 Be5 29. c5 bxc5 30. bxc5 Nf7 31. cxd6 cxd6 32. Rc6 Nd8 33. Rc2 Rxc2 34. Qxc2 Ra1 35. Rxa1 Bxa1 36. Qc8 Be5 37. Nc7 Kh7 38. Bb5 Kh6 39. Ne8 Kh7 40. Qc1 Kg8 41. Qc8 Kh7 42. Bd7 Kh8 43. Nc7 Kh7 44. Be8 Bf6 45. Bd7 Be5 46. Ne8 Kh8 47. Nc7 1/2-1/2

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.13"]
[Round "5"]
[White "Ulloa, Ruben Guillermo"]
[Black "Cardoso Cardoso, Jose Gabriel"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "2238"]
[BlackElo "2333"]
[PlyCount "64"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Na6 8. g4 Nc5 9. f3 a5 10. h4 h5 11. g5 Ne8 12. Nh3 Bd7 13. Qd2 c6 14. Nf2 Nc7 15. Kf1 cxd5 16. cxd5 b5 17. Bxc5 dxc5 18. Kg2 b4 19. Ncd1 Nb5 20. Bxb5 Bxb5 21. Ne3 c4 22. Rhc1 Rc8 23. a3 f6 24. Nh3 fxg5 25. Nxg5 Bh6 26. Nf1 c3 27. bxc3 Rf4 28. cxb4 Rxc1 29. Qxc1 Bxg5 30. hxg5 Qxg5+ 31. Kf2 Qh4+ 32. Ke3 Rxe4+ 0-1

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.12"]
[Round "4"]
[White "Panesso Rivera, Henry"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2423"]
[BlackElo "2238"]
[PlyCount "58"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 d5 5. e3 0-0 6. b4 a5 7. b5 c5 8. bxc6 Nxc6 9. Ba3 a4 10. Rc1 Qa5 11. Qd2 dxc4 12. Bxc4 Rd8 13. Nb5 Qxd2+ 14. Nxd2 Bf8 15. Ke2 Bd7 16. f4 Ra5 17. Rb1 Bf5 18. Rb2 Ne4 19. Nxe4 Bxe4 20. Kf2 Bd5 21. Bxd5 Rxd5 22. Nc7 Rd7 23. Rxb7 Nd8 24. Rb5 Ra7 25. Nd5 f5 26. Rc1 Kf7 27. Rc8 Ne6 28. Ke2 Bh6 29. g3 Bg7 1-0

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.11"]
[Round "3"]
[White "Ulloa, Ruben Guillermo"]
[Black "Cori Tello, Deysi Estella"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2238"]
[BlackElo "2387"]
[PlyCount "43"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 c5 7. d5 e6 8. Nf3 exd5 9. cxd5 a6 10. a4 Re8 11. Nd2 b6 12. 0-0 Nbd7 13. Bg5 Qc7 14. f4 c4 15. Kh1 Bb7 16. Bxc4 Nc5 17. Rc1 Qd7 18. Bxf6 Bxf6 19. e5 Bd8 20. b4 Nxa4 21. Nxa4 b5 22. Bb3 1-0

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.10"]
[Round "2"]
[White "Blanco Garcia, Liliam Barbara"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2105"]
[BlackElo "2238"]
[PlyCount "75"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 d6 7. Nc3 Nxc3 8. bxc3 Qc7 9. Qb3 Nd7 10. Bf4 dxe5 11. Nxe5 Bd6 12. Bb5 0-0 13. Nxd7 Bxd7 14. Bxd6 Qxd6 15. 0-0 Rac8 16. Bxd7 Qxd7 17. Rfd1 Rfd8 18. h3 Rc6 19. Rab1 b6 20. Rd3 g6 21. Rbd1 Qc7 22. h4 h5 23. Rg3 Qf4 24. Rh3 Rcd6 25. Rdd3 Rd5 26. Qd1 Qc7 27. Rhf3 Qc4 28. Rd2 e5 29. Rfd3 b5 30. a3 a5 31. Qb1 Kh7 32. Rf3 R8d7 33. Qe4 b4 34. axb4 axb4 35. Rc2 b3 36. Re2 Kg7 37. Qd3 b2 38. Re1 0-1

[Event "Capablanca Memorial op 53rd"]
[Site "Havana"]
[Date "2018.05.09"]
[Round "1"]
[White "Ulloa, Ruben Guillermo"]
[Black "Cabrera Ladron de Guevara, Mayra"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2238"]
[BlackElo "2103"]
[PlyCount "98"]
[EventDate "2018.05.09"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "CUB"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. a3 Na6 7. e3 0-0 8. c5 bxa3 9. Rxa3 Nb4 10. Nc3 d6 11. cxd6 Qxd6 12. Be2 a6 13. 0-0 b6 14. e4 Qf4 15. g3 Qh6 16. Qb3 a5 17. Re1 Bb7 18. Bf1 Rac8 19. Raa1 Rfd8 20. Rad1 Qh5 21. Bg2 Ba6 22. h3 Bc4 23. Qa4 Nd3 24. Re2 b5 25. Qa1 b4 26. Na4 Nf4 27. Re3 Ne2+ 28. Rxe2 Bxe2 29. g4 Nxg4 30. hxg4 Qxg4 31. Nh2 Qf4 32. Re1 Rc2 33. Nc5 Bc4 34. Nf3 Ra8 35. Re3 g5 36. b3 Bb5 37. Qd1 Ra2 38. d5 g4 39. dxe6 fxe6 40. Nxe6 Qf6 41. e5 Qxe6 42. Ng5 Qf5 43. Qd5+ Kg7 44. Qb7+ Bd7 45. Ne6+ Qxe6 46. Qxa8 Qf7 47. Qe4 Qxf2+ 48. Kh2 Qh4+ 49. Kg1 Qf2+ 1/2-1/2

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.13"]
[Round "11.2"]
[White "Roselli Mailhe, Bernardo"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1/2-1/2"]
[ECO "D92"]
[WhiteElo "2434"]
[BlackElo "2128"]
[PlyCount "87"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Uruguay"]
[BlackTeam "Panama"]
[WhiteTeamCountry "URU"]
[BlackTeamCountry "PAN"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 0-0 6. Rc1 Nh5 7. Bg5 h6 8. Bh4 dxc4 9. e3 c5 10. dxc5 g5 11. Nd2 Nf6 12. Bg3 Na6 13. c6 bxc6 14. Nxc4 Nd5 15. Be5 f6 16. Bg3 Nc5 17. Be2 Be6 18. Na4 Nxa4 19. Qxa4 Nb6 20. Qc2 Qd5 21. f3 f5 22. b3 Nxc4 23. Bxc4 Qa5+ 24. Qd2 Qxd2+ 25. Kxd2 Rfd8+ 26. Ke2 Bd5 27. Bd3 a5 28. Rc2 a4 29. Rb1 axb3 30. axb3 Ra3 31. Bxf5 e6 32. Be4 Bxb3 33. Rxc6 Ra2+ 34. Kf1 Ra3 35. Be1 Ba2 36. Rbc1 Rxe3 37. Rc8 Rxc8 38. Rxc8+ Kf7 39. Rc7+ Kg8 40. Rc8+ Kf7 41. Rc7+ Kg8 42. Bg6 Be5 43. Rc8+ Kg7 44. Be4 1/2-1/2

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.11"]
[Round "9.2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Constantinou, Pavlos"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2128"]
[BlackElo "2058"]
[PlyCount "88"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Cyprus"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "CYP"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 dxc4 5. Bg2 Bd7 6. Ne5 Bc6 7. Nxc6 Nxc6 8. 0-0 Qd7 9. e3 0-0-0 10. Qa4 Nd5 11. Qxc4 h5 12. Nc3 h4 13. Bd2 f5 14. Rab1 g5 15. b4 hxg3 16. hxg3 f4 17. Nxd5 exd5 18. Qd3 fxg3 19. fxg3 Kb8 20. b5 Ne7 21. e4 dxe4 22. Qxe4 Qd5 23. Bxg5 Qxe4 24. Bxe4 Rg8 25. Rxf8 Rdxf8 26. Bxe7 Re8 27. Bd5 Rxg3+ 28. Kf2 Rg4 29. Bc5 b6 30. Bc6 Reg8 31. Bb4 Rxd4 32. a3 Rc4 33. Rb2 a5 34. Be7 Rf4+ 35. Ke3 Rf7 36. Bh4 Rh7 37. Be1 Re7+ 38. Kf2 Rf8+ 39. Bf3 Rxe1 40. Rb3 Re5 41. Kg2 Rg5+ 42. Kf2 a4 43. Re3 Rxb5 44. Ke2 Rb2+ 0-1

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.10"]
[Round "8.2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Salim Issa, Ali Shamas"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2128"]
[BlackElo "1932"]
[PlyCount "103"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Oman"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "OMN"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Nf3 Nc6 6. Nc3 0-0 7. Bg2 d5 8. 0-0 Bxc3 9. Bxc3 Ne4 10. Qc2 f5 11. Rac1 Bd7 12. Qb3 Nxc3 13. Qxc3 Rac8 14. Nd2 dxc4 15. Nxc4 Kh8 16. Na5 Nd8 17. Nxb7 Bb5 18. Rfe1 c6 19. Nc5 Nb7 20. e3 Nxc5 21. Qxc5 Qb7 22. b3 Bd3 23. Qd6 Qa6 24. a4 Qa5 25. b4 Qxa4 26. Ra1 Qc2 27. Rxa7 Be4 28. Qe7 Rg8 29. Qxe6 Qc3 30. Rea1 Rce8 31. Qd6 h6 32. Qc5 Qb2 33. Bxe4 fxe4 34. Qxc6 Qxb4 35. Qg6 Qb2 36. Rf1 Qb8 37. Rf7 Qa8 38. Rc1 Rc8 39. Rxc8 Qxc8 40. Qxe4 Qc1+ 41. Kg2 Qc4 42. Qf3 Qc8 43. d5 Qd8 44. e4 Qd6 45. Qf4 Qc5 46. d6 Qd4 47. d7 Qc5 48. Qg4 Qd4 49. Qf5 Qb4 50. Qd5 Qb6 51. e5 Qd8 52. e6 1-0

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.09"]
[Round "7.1"]
[White "Ulloa, Ruben Guillermo"]
[Black "Mphungu, Gerrard"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2128"]
[BlackElo "2034"]
[PlyCount "153"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Malawi"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "MWI"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Qxd2 c6 7. Bg2 b6 8. 0-0 Bb7 9. Rc1 0-0 10. Nc3 Qe7 11. cxd5 cxd5 12. Qf4 Nc6 13. Nb5 Rfd8 14. Ne5 Rac8 15. Nd3 Ba6 16. a4 Bxb5 17. axb5 Na5 18. Ne5 Qd6 19. b4 Qxb4 20. Nc6 Nxc6 21. bxc6 Qd6 22. c7 Rd7 23. Qxd6 Rxd6 24. Rxa7 Kf8 25. e3 Ne8 26. Bf1 Rd7 27. Bb5 Rcxc7 28. Rcxc7 Rxc7 29. Ra8 Re7 30. Rb8 g6 31. Kg2 f6 32. h4 Kf7 33. Rxb6 Ng7 34. g4 h6 35. Bd3 f5 36. Kg3 Kf6 37. f3 Ra7 38. Bc2 Ra2 39. Bb3 Ra5 40. Rb7 g5 41. h5 Ra8 42. Rb6 Rd8 43. Bc2 Rc8 44. Bb1 Rc3 45. Kf2 Rc7 46. Rb8 Rc3 47. Ke2 Rc1 48. Bd3 Nxh5 49. gxh5 Rh1 50. Kf2 Rh2+ 51. Kg1 Rxh5 52. Kg2 g4 53. Be2 Rg5 54. f4 Rh5 55. Bf1 Rh3 56. Kf2 Rf3+ 57. Ke2 Rg3 58. Rb3 h5 59. Kf2 Rf3+ 60. Kg1 h4 61. Bg2 Rg3 62. Kf2 Kf7 63. Rb8 Kg7 64. Re8 Kf7 65. Rh8 Rxg2+ 66. Kxg2 h3+ 67. Kg3 Ke7 68. Rh6 Kf7 69. Kf2 Ke7 70. Ke2 Kd7 71. Kd2 Ke7 72. Kc3 Kf7 73. Kb4 Kg7 74. Rh4 Kg6 75. Kc5 Kg7 76. Kd6 Kf7 77. Ke5 1-0

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.08"]
[Round "6.2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Choukri, Adel"]
[Result "0-1"]
[ECO "E63"]
[WhiteElo "2128"]
[BlackElo "2269"]
[PlyCount "138"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Morocco"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "MAR"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nf3 0-0 6. 0-0 Nc6 7. Nc3 a6 8. Bf4 Rb8 9. c5 Nd7 10. cxd6 cxd6 11. Qd2 Re8 12. Bh6 Bh8 13. Rac1 Nb6 14. b3 Bg4 15. Be3 Bxf3 16. exf3 d5 17. Rfd1 Rc8 18. f4 e6 19. Bf3 Bg7 20. Kg2 Bf8 21. Nb1 Qe7 22. Qb2 a5 23. Be2 Qb4 24. a3 Qe7 25. Bb5 Red8 26. Qd2 a4 27. Bxa4 Nxa4 28. bxa4 Ra8 29. Qc2 Na5 30. Bd2 Nc4 31. Bb4 Qd7 32. Nc3 Nxa3 33. Qb3 Bxb4 34. Qxb4 Nc4 35. Rb1 b6 36. Rd3 Rdc8 37. Qb3 Rc6 38. Qa2 Rac8 39. Rb4 Qe7 40. Rb5 Qf6 41. Qe2 Nd6 42. Rb3 Qf5 43. Qf3 h5 44. h3 Qf6 45. h4 Nf5 46. Ne2 Kg7 47. Rd2 Nd6 48. Nc3 Rc4 49. Qd3 R8c6 50. Ra3 Nf5 51. Ne2 Qe7 52. a5 b5 53. a6 Qa7 54. Ra5 Rxa6 55. Rxb5 Ra1 56. Rb1 Ra2 57. Rxa2 Qxa2 58. Rc1 Kh7 59. Rc3 Rxc3 60. Nxc3 Qb3 61. Qd2 Qb4 62. Qd3 Nxd4 63. Nd1 Nf5 64. Nc3 Qb2 65. Nb5 Kg7 66. Nc7 Qb8 67. Qc2 Qd8 68. Qb2+ d4 69. Na6 Qa8+ 0-1

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.05"]
[Round "4.2"]
[White "Subramaniam, Sumanth"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2137"]
[BlackElo "2128"]
[PlyCount "89"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Malaysia"]
[BlackTeam "Panama"]
[WhiteTeamCountry "MAS"]
[BlackTeamCountry "PAN"]

1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. c4 Nc6 5. Nc3 e6 6. 0-0 Nge7 7. b3 0-0 8. Bb2 b6 9. Na4 d5 10. Bxg7 Kxg7 11. cxd5 Nxd5 12. d4 cxd4 13. Nxd4 Bb7 14. Rc1 Rc8 15. Nxc6 Bxc6 16. Qd4+ Qf6 17. Qxf6+ Kxf6 18. Nb2 Bb5 19. Nc4 Rc5 20. Bxd5 exd5 21. Ne3 d4 22. Rxc5 bxc5 23. Nd5+ Ke5 24. Nf4 Re8 25. Rd1 g5 26. Nd3+ Kd5 27. Kf1 a5 28. Rc1 Rc8 29. Nb2 Ra8 30. Nc4 Ra6 31. a4 Bd7 32. Ke1 Be6 33. Kd2 g4 34. Re1 Ke4 35. Rb1 h5 36. Rb2 f5 37. Rb1 f4 38. Nb2 fxg3 39. Nd3 Rc6 40. fxg3 Bf7 41. Rc1 Kd5 42. Rf1 Ke6 43. Rxf7 c4 44. bxc4 Rxc4 45. Ra7 1-0

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.04"]
[Round "3.1"]
[White "Ulloa, Ruben Guillermo"]
[Black "Amin, Bassem"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2128"]
[BlackElo "2661"]
[PlyCount "116"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Egypt"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "EGY"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Qe7 5. Nc3 0-0 6. Nf3 d6 7. a3 Bxc3 8. Bxc3 Ne4 9. Qc2 Nxc3 10. Qxc3 a5 11. Bg2 a4 12. 0-0 Nc6 13. e4 e5 14. h3 b6 15. Rad1 Re8 16. d5 Na5 17. Nd2 Nb7 18. Rde1 Nc5 19. f4 Bd7 20. Qf3 f6 21. Rf2 b5 22. f5 Reb8 23. Re3 Rb6 24. Bf1 b4 25. Nb1 Rab8 26. Qg2 Qd8 27. g4 bxa3 28. Nxa3 Rb3 29. Rxb3 Rxb3 30. Rf3 Qb8 31. Nb5 Bxb5 32. cxb5 Qa7 33. Kh2 Kf8 34. Bc4 Rxf3 35. Qxf3 Nd7 36. Qe2 Qd4 37. Ba2 Nc5 38. Bb1 Qb4 39. Qc2 Qxb5 40. Kg2 Qb4 41. Kf2 Ke7 42. h4 Qd4+ 43. Kg2 Qe3 44. h5 h6 45. Kh2 Kd8 46. Kg2 Kc8 47. Kh2 Qf3 48. Qg2 Qb3 49. Qc2 Kb7 50. Kg2 Kb6 51. Qc1 Qb4 52. Kf3 Qd4 53. Kg2 Kb5 54. Qc2 Qe3 55. Kh2 Kb4 56. Kg2 Qxe4+ 57. Qxe4+ Nxe4 58. Bxe4 Kb3 0-1

[Event "Olympiad-42"]
[Site "Baku"]
[Date "2016.09.02"]
[Round "1.2"]
[White "Mastrovasilis, Dimitrios"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "2601"]
[BlackElo "2128"]
[PlyCount "103"]
[EventDate "2016.09.02"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "AZE"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]
[WhiteTeam "Greece"]
[BlackTeam "Panama"]
[WhiteTeamCountry "GRE"]
[BlackTeamCountry "PAN"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 Nf6 7. 0-0 Be7 8. Kh1 0-0 9. f4 d6 10. Be3 Nxd4 11. Qxd4 b6 12. Bf3 Bb7 13. Rad1 Rfd8 14. f5 exf5 15. exf5 d5 16. Qf4 Qxf4 17. Bxf4 Rac8 18. Rfe1 Bb4 19. Bd2 Ne4 20. Bxe4 dxe4 21. a3 Bf8 22. Be3 f6 23. Kg1 g6 24. Nb5 Rxd1 25. Rxd1 Rxc2 26. Rd8 g5 27. Nd4 Rc8 28. Rd7 Ba6 29. Rxa7 Bc4 30. Kf2 Bd6 31. h3 h6 32. Rb7 Rb8 33. Rd7 Bf8 34. Nc6 Rc8 35. Na7 Rb8 36. Nc6 Rc8 37. Na7 Rb8 38. Bd4 Bc5 39. Ke3 Re8 40. Bxc5 bxc5 41. Nc6 Bf7 42. a4 Ra8 43. Rd8+ Rxd8 44. Nxd8 Bd5 45. Ne6 c4 46. Nc7 Bc6 47. a5 Kf7 48. a6 Ke7 49. a7 Kd7 50. a8Q Bxa8 51. Nxa8 Kc6 52. Kxe4 1-0

[Event "Central America-chT"]
[Site "Managua"]
[Date "2015.07.29"]
[Round "3.4"]
[White "Ramirez Arroyo, Joan Emmanuel"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "A15"]
[WhiteElo "2045"]
[BlackElo "2016"]
[PlyCount "88"]
[EventDate "2015.07.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "NCA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Panama"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "PAN"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 0-0 5. g3 d6 6. Bg2 Nbd7 7. 0-0 e5 8. Qc2 a5 9. a3 Re8 10. d3 d5 11. cxd5 Nxd5 12. Nc3 N7b6 13. e4 Ne7 14. Ne2 Nc6 15. b5 Nd4 16. Nexd4 exd4 17. Rfc1 c6 18. bxc6 bxc6 19. Qc5 Na4 20. Qc2 Nxb2 21. Qxb2 Ba6 22. Qc2 Rc8 23. Nd2 Bh6 24. f4 g5 25. f5 g4 26. Re1 Be3+ 27. Kh1 Qg5 28. Nf1 Red8 29. Rad1 Rd6 30. Qe2 Rcd8 31. Nxe3 dxe3 32. Qxe3 Qxe3 33. Rxe3 Rxd3 34. Rexd3 Rxd3 35. Rxd3 Bxd3 36. Kg1 c5 37. Kf2 f6 38. Ke3 c4 39. h3 h5 40. h4 Kf7 41. Kd4 Ke7 42. e5 fxe5+ 43. Kxe5 c3 44. f6+ Kf8 0-1

[Event "Central America-chT"]
[Site "Managua"]
[Date "2015.07.29"]
[Round "4.4"]
[White "Ulloa, Ruben Guillermo"]
[Black "Lorenzana, Wilson Estuardo"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "2016"]
[BlackElo "2233"]
[PlyCount "64"]
[EventDate "2015.07.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "NCA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Guatemala"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "GUA"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Qc2 e5 8. Rd1 Qe7 9. Nc3 exd4 10. Nxd4 c6 11. b3 a5 12. h3 Re8 13. Bb2 Nc5 14. e3 Bd7 15. Rd2 Rad8 16. Re1 Bc8 17. Rde2 Qc7 18. Nd1 Nfe4 19. Kh2 f5 20. f3 Nf6 21. Nf2 Re7 22. Bc3 b6 23. Qb2 Rf8 24. Qd2 d5 25. cxd5 Nxd5 26. Qb2 Ba6 27. Rd2 f4 28. gxf4 Rxe3 29. Rxe3 Qxf4+ 30. Kg1 Qxe3 31. Nc2 Qg5 32. f4 Rxf4 0-1

[Event "Central America-chT"]
[Site "Managua"]
[Date "2015.07.28"]
[Round "2.4"]
[White "Ulloa, Ruben Guillermo"]
[Black "Villanueva, Marcio"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2016"]
[PlyCount "59"]
[EventDate "2015.07.27"]
[EventType "team-swiss"]
[EventRounds "5"]
[EventCountry "NCA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]
[WhiteTeam "Panama"]
[BlackTeam "Honduras"]
[WhiteTeamCountry "PAN"]
[BlackTeamCountry "HON"]

1. d4 g6 2. c4 d6 3. Nf3 Bg7 4. g3 c5 5. d5 e5 6. Nc3 f5 7. e4 Nf6 8. Ng5 Qe7 9. Bg2 h6 10. Ne6 Bxe6 11. dxe6 Nc6 12. exf5 gxf5 13. Nd5 Nxd5 14. cxd5 Nd4 15. Qa4+ Kd8 16. 0-0 Qe8 17. Qd1 Ke7 18. Be3 h5 19. Qd2 Bf6 20. h4 e4 21. Rac1 Qg6 22. Bxd4 Bxd4 23. Qa5 Qxg3 24. Qc7+ Kf6 25. Qf7+ Ke5 26. e7 Kf4 27. Rce1 Qd3 28. Rxe4+ Qxe4 29. Bxe4 Kxe4 30. Re1+ 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.21"]
[Round "9"]
[White "Ortiz Perez, Carlos"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "1901"]
[BlackElo "2016"]
[PlyCount "82"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Qb3 0-0 8. cxd5 Nbd7 9. Bg5 Nb6 10. Bxf6 Bxf6 11. Rd1 Bf5 12. Bd3 Bg4 13. Be4 Nc8 14. h3 Bd7 15. 0-0 Nd6 16. Ne5 Be8 17. Rfe1 Rc8 18. Re2 Qa5 19. Bf3 Rc7 20. g3 Qa6 21. Kg2 Nb5 22. Rd3 Kg7 23. Qd1 h5 24. Rc2 Nxd4 25. Rxd4 Bxe5 26. Re4 Qf6 27. Qd3 Bd7 28. Ree2 Rfc8 29. Ne4 Qf5 30. g4 Qf4 31. Ng3 Bb5 32. Qxb5 Rxc2 33. Qxb7 Rxe2 34. Bxe2 Rc7 35. Qb3 h4 36. Nf1 Qd4 37. Ne3 Rc1 38. Qb5 Qf4 39. Nf1 Bd4 40. Ne3 Bxe3 41. fxe3 Qg3# 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "7"]
[White "Hernandez, Diego"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "1950"]
[BlackElo "2016"]
[PlyCount "74"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 h5 8. Nf4 Nc6 9. Nxg6 fxg6 10. Bb5 cxd4 11. Qxd4 Nge7 12. Bg5 Qc7 13. f4 hxg4 14. Qg1 a6 15. Bd3 Nf5 16. Qxg4 Bb4 17. 0-0-0 Bxc3 18. bxc3 Qa5 19. Bf6 Qa3+ 20. Kb1 Kd7 21. Qxg6 Nfe7 22. Bxe7 Nxe7 23. Qg3 Rac8 24. Qe3 Rc6 25. Qd4 Kc7 26. Ka1 Rc5 27. Qb4 Qxc3+ 28. Qxc3 Rxc3 29. Rdg1 g6 30. Kb2 d4 31. Bxg6 Rf3 32. Bd3 Rxf4 33. h5 Nf5 34. Rg6 Nh4 35. Rg5 Nf3 36. Rg7+ Kd8 37. Rxb7 Nxe5 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.20"]
[Round "8"]
[White "Ulloa, Ruben Guillermo"]
[Black "Valencia, Oscar"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2016"]
[BlackElo "1728"]
[PlyCount "51"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nbd7 7. Qc2 e5 8. Rd1 exd4 9. Nxd4 a6 10. Nc3 Re8 11. Nb3 Qe7 12. Bg5 h6 13. Nd5 Qxe2 14. Rd2 Qe5 15. Bf4 Qh5 16. Nxc7 Rb8 17. Nxe8 Nxe8 18. Re1 Ndf6 19. c5 Bf5 20. Qd1 Rd8 21. Qxh5 Nxh5 22. Bxb7 Nxf4 23. gxf4 Nf6 24. c6 Ne4 25. Rxe4 Bxe4 26. c7 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.19"]
[Round "6"]
[White "Ulloa, Ruben Guillermo"]
[Black "Mendez, Alan Steven"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2016"]
[BlackElo "1744"]
[PlyCount "41"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 0-0 6. 0-0 b6 7. Nc3 Bb7 8. cxd5 Nxd5 9. Re1 c5 10. e4 Nxc3 11. bxc3 Nc6 12. d5 exd5 13. exd5 Na5 14. Ne5 Bf6 15. f4 Re8 16. Qd3 Qd6 17. Qe4 Rad8 18. c4 b5 19. Bd2 Nxc4 20. Nxc4 Bd4+ 21. Qxd4 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "5"]
[White "Melara, Moises"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "1772"]
[BlackElo "2016"]
[PlyCount "65"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. c5 0-0 8. Bf4 Nc6 9. Bb5 Bd7 10. 0-0 Rc8 11. Re1 Bg4 12. Bxc6 Rxc6 13. h3 Bf5 14. Ne5 Rc8 15. g4 Be6 16. Qd2 h5 17. Nxg6 fxg6 18. Rxe6 hxg4 19. hxg4 Qd7 20. Rae1 Ne4 21. R1xe4 dxe4 22. Rxg6 Rf6 23. Rg5 Rcc6 24. d5 Ra6 25. d6 exd6 26. Nxe4 Rf7 27. Nxd6 Ra4 28. Nxf7 Qxd2 29. Nh6+ Kh7 30. Bxd2 Kxh6 31. c6 Rd4 32. c7 Rxd2 33. Rh5+ 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.18"]
[Round "4"]
[White "Ulloa, Ruben Guillermo"]
[Black "Rodriguez, Wilfredo"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "2016"]
[BlackElo "1631"]
[PlyCount "41"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nbd7 7. 0-0 e5 8. Qc2 c6 9. Rd1 Qc7 10. e4 Ne8 11. d5 a5 12. Bg5 f6 13. Be3 f5 14. Ng5 Nb6 15. Qb3 Ra6 16. c5 Na8 17. dxc6+ Kh8 18. Nd5 Qd8 19. cxb7 Bxb7 20. Qxb7 f4 21. Ne6 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "3"]
[White "Santos, Oliver"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1690"]
[BlackElo "2016"]
[PlyCount "77"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bf4 Qb6 6. b3 Bg4 7. c3 Nf6 8. h3 Bh5 9. Nbd2 e6 10. Bd3 Ba3 11. Rb1 a5 12. Nf1 Ne4 13. Bd2 0-0 14. N1h2 Bd6 15. 0-0 Qc7 16. Be2 f5 17. c4 dxc4 18. bxc4 Rad8 19. Kh1 Bxh2 20. Nxh2 Bxe2 21. Qxe2 Nxd4 22. Qe1 Nc2 23. Bxa5 Qxc4 24. Qc1 Rd5 25. Be1 b5 26. Qb2 Nxe1 27. Rfxe1 Rd2 28. Qxb5 Nxf2+ 29. Kg1 Qd4 30. Nf3 Nxh3+ 31. Kh2 Qf4+ 32. Kh1 Rd5 33. Qe2 Qh6 34. gxh3 Qxh3+ 35. Nh2 Kh8 36. Qxe6 Ra5 37. Rb8 Qa3 38. Qf7 Ra8 39. Rg1 1-0

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.17"]
[Round "2"]
[White "Ulloa, Ruben Guillermo"]
[Black "Jimenez Garcia, Emanuel"]
[Result "0-1"]
[ECO "E64"]
[WhiteElo "2016"]
[BlackElo "2210"]
[PlyCount "92"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Na6 7. 0-0 c5 8. d5 Nc7 9. e4 Rb8 10. a4 e5 11. Ne1 a6 12. a5 b5 13. axb6 Rxb6 14. Nd3 Nd7 15. Be3 Rb8 16. Na4 a5 17. Nc3 Na6 18. Nb5 Nb6 19. Qb3 Bd7 20. Nxd6 Nxd5 21. Qa3 Nxe3 22. fxe3 Be6 23. Nxc5 Qxd6 24. Nxa6 Qxa6 25. b4 Bxc4 26. Rfb1 Bh6 27. bxa5 Bd3 28. Re1 Rfd8 29. Qe7 Bf8 30. Qg5 h6 31. Qg4 Bb4 32. Red1 Bc3 33. Ra3 Be2 34. Rxd8+ Rxd8 35. Bf3 Rd1+ 36. Kg2 Bxf3+ 37. Qxf3 Rd2+ 38. Kh3 Bxa5 39. g4 Qb6 40. Qf1 Rxh2+ 41. Kg3 Rd2 42. Qa1 Qf6 43. Qg1 Bd8 44. Ra8 Qh4+ 45. Kf3 h5 46. gxh5 Qxh5+ 0-1

[Event "Pan American-ch U20"]
[Site "San Salvador"]
[Date "2015.07.16"]
[Round "1"]
[White "Rodriguez, Andres"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2306"]
[BlackElo "2016"]
[PlyCount "60"]
[EventDate "2015.07.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. e4 Nxc3 5. bxc3 g6 6. Bb2 Bg7 7. Nf3 0-0 8. h3 c5 9. d4 Nc6 10. Bc4 Qc7 11. Qd2 cxd4 12. cxd4 Nxd4 13. Rc1 Nxf3+ 14. gxf3 Qb6 15. Bxg7 Kxg7 16. Qc3+ Qf6 17. Qxf6+ Kxf6 18. Rc3 Ke5 19. Bb3 b6 20. Ke2 Kf4 21. Rc7 Ba6+ 22. Ke1 Rac8 23. Rxc8 Rxc8 24. Kd2 Rd8+ 25. Kc3 Rd3+ 26. Kb4 Rxf3 27. Bxf7 Rxf2 28. Bd5 Bf1 29. a4 Rf3 30. e5 a5# 0-1

[Event "Central America U20 op"]
[Site "San Jose "]
[Date "2014.12.17"]
[Round "2"]
[White "Ampie, Mauro"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2186"]
[BlackElo "1913"]
[PlyCount "67"]
[EventDate "2014.12.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 c6 2. d4 g6 3. Nc3 Bg7 4. Nf3 d5 5. h3 dxe4 6. Nxe4 Nd7 7. Bd3 Ngf6 8. Nxf6+ Nxf6 9. 0-0 0-0 10. c3 Qc7 11. Re1 c5 12. dxc5 Qxc5 13. Be3 Qc7 14. Bd4 Rd8 15. Qb3 Be6 16. Rxe6 fxe6 17. Qxe6+ Kh8 18. Ng5 Rf8 19. Re1 b6 20. Bc4 h6 21. Nf7+ Kh7 22. Ne5 Qd6 23. Nxg6 Rfc8 24. Qf5 Rxc4 25. Ne5+ Kg8 26. Nxc4 Qd5 27. Ne3 Qxa2 28. Ng4 Qf7 29. Ne5 e6 30. Nxf7 exf5 31. Nxh6+ Bxh6 32. Bxf6 Kf7 33. Bd4 Rg8 34. Ra1 1-0

[Event "Panama op 3rd"]
[Site "Panama City"]
[Date "2013.11.05"]
[Round "9"]
[White "Mendoza, Rodrigo"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1/2-1/2"]
[ECO "D76"]
[WhiteElo "2189"]
[BlackElo "1838"]
[PlyCount "80"]
[EventDate "2013.10.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d5 6. cxd5 Nxd5 7. d4 Nb6 8. Nc3 Nc6 9. e3 Be6 10. b3 Qd7 11. Ne4 Qc8 12. Nc5 Bg4 13. Bb2 Rd8 14. Qc1 Nd7 15. Nd3 Nf6 16. Re1 Ne8 17. Nc5 b6 18. Nd3 Qf5 19. e4 Qd7 20. d5 Bxf3 21. Bxf3 Nd4 22. Bg2 c5 23. e5 Qg4 24. Bxd4 Qxd4 25. Qc4 Qxc4 26. bxc4 Rd7 27. Rab1 Rad8 28. a4 f6 29. a5 fxe5 30. axb6 axb6 31. Rxb6 Nd6 32. Nxc5 Nxc4 33. Nxd7 Rxd7 34. Rb4 Nd6 35. h4 Bf6 36. Bf3 Rc7 37. h5 Rc3 38. Kg2 Kg7 39. hxg6 hxg6 40. Rb8 Rc4 1/2-1/2

[Event "Panama op 3rd"]
[Site "Panama City"]
[Date "2013.11.03"]
[Round "6"]
[White "Crespo Hidalgo, Carlos"]
[Black "Ulloa, Ruben Guillermo"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "2113"]
[BlackElo "1838"]
[PlyCount "105"]
[EventDate "2013.10.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. b4 Nce4 9. Qc2 d5 10. f3 Nd6 11. c5 Nc4 12. e3 Ne5 13. Bb2 Ng6 14. Bd3 0-0 15. Ne2 Re8 16. 0-0 e5 17. Ng3 Qc7 18. e4 Nf4 19. Bb5 Rd8 20. exd5 N6xd5 21. Rfe1 f6 22. Ne4 b6 23. g3 Nh3+ 24. Kg2 bxc5 25. Qxc5 Qxc5 26. Nxc5 Nb6 27. Rad1 Bf5 28. a4 Kh8 29. Bc1 h5 30. a5 Nd5 31. Bd3 Bxd3 32. Rxd3 Ng5 33. Bxg5 fxg5 34. Rxe5 Nxb4 35. Rxd8+ Rxd8 36. Rxg5 Rd5 37. Rxd5 Nxd5 38. f4 a6 39. Kf3 Ne7 40. Ke4 Kg8 41. Nb3 Kf7 42. Ke5 Ke8 43. Ke6 Kd8 44. Nc5 h4 45. Nxa6 hxg3 46. hxg3 Nc6 47. Nc5 Nxa5 48. Kf7 Nc4 49. Ne6+ Kd7 50. Nxg7 Ne5+ 51. Kg8 Nc4 52. g4 Ke7 53. f5 1-0

[Event "Panama op 3rd"]
[Site "Panama City"]
[Date "2013.11.03"]
[Round "5"]
[White "Ulloa, Ruben Guillermo"]
[Black "Carvajal Gorgona, Jonathan G"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1838"]
[BlackElo "2239"]
[PlyCount "40"]
[EventDate "2013.10.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. Nc3 d5 5. Qc2 dxc4 6. Bg2 Nc6 7. Nd1 b5 8. 0-0 Bb7 9. Nc3 Be7 10. a4 Nb4 11. Qb1 0-0 12. b3 cxb3 13. axb5 axb5 14. Rxa8 Qxa8 15. Nxb5 Qa2 16. Ba3 Bxf3 17. Bxf3 Rb8 18. Qxa2 bxa2 19. Nc3 Nbd5 20. Bxd5 Nxd5 0-1

[Event "Panama op 3rd"]
[Site "Panama City"]
[Date "2013.11.02"]
[Round "4"]
[White "Gavarrete, Nahun"]
[Black "Ulloa, Ruben Guillermo"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2120"]
[BlackElo "1838"]
[PlyCount "40"]
[EventDate "2013.10.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "PAN"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. 0-0 Nc6 7. Be3 cxd4 8. Nxd4 Nge7 9. c4 Nxd4 10. Bxd4 dxc4 11. Bxc4 a6 12. f4 Nc6 13. Be3 Qa5 14. Nc3 Bc5 15. Qe2 Qb6 16. Bf2 Rc8 17. Ne4 Nd4 18. Qe1 Nc2 19. Nd6+ Qxd6 20. exd6 Nxe1 0-1

