[Event "Titled Tuesday intern op 18th Aug"]
[Site "Chess.com INT"]
[Date "2020.08.18"]
[Round "2"]
[White "Aung, Thant Zin"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2268"]
[BlackElo "2353"]
[PlyCount "96"]
[EventDate "2020.08.18"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 a6 6. Bf1 g6 7. c3 Bg7 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 11. Nbd2 Nxd2 12. Bxd2 0-0 13. e6 fxe6 14. Ng5 Nf6 15. Nxe6 Bxe6 16. Rxe6 Qd7 17. Re1 Rac8 18. Rc1 Ne4 19. Be3 Rxc1 20. Qxc1 Rc8 21. Qd1 b5 22. f3 Nd6 23. b3 Nf5 24. Bf2 Qc6 25. g4 Nd6 26. Rxe7 Qc2 27. Qxc2 Rxc2 28. Rd7 Nf7 29. a4 bxa4 30. bxa4 Ra2 31. Bxa6 Rxa4 32. Bb7 Bxd4 33. Bxd5 Bxf2+ 34. Kxf2 Rf4 35. Kg3 g5 36. h4 h6 37. hxg5 hxg5 38. Rxf7 Rxf7 39. Bxf7+ Kxf7 40. Kf2 Kf6 41. Ke2 Ke6 42. Ke3 Ke5 43. f4+ gxf4+ 44. Kf3 Kf6 45. Kxf4 Kg6 46. g5 Kg7 47. Kf5 Kf7 48. g6+ Kg7 1/2-1/2

[Event "Titled Tuesday intern op 19th May"]
[Site "Chess.com INT"]
[Date "2020.05.19"]
[Round "7"]
[White "Orehek, Spela"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2050"]
[BlackElo "2353"]
[PlyCount "51"]
[EventDate "2020.05.19"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Nbd7 8. Nge2 Nf8 9. Qc2 Ne6 10. Bh4 g6 11. 0-0 Ng7 12. f3 Nf5 13. Bf2 Nd6 14. e4 dxe4 15. fxe4 Nd7 16. e5 Nf5 17. Bxf5 gxf5 18. Ng3 f4 19. Nf5 Nb6 20. Ng7+ Kf8 21. Nh5 Bg5 22. Ne4 Bg4 23. Nhf6 Bf5 24. Qc5+ Qe7 25. Qxe7+ Kxe7 26. Nxg5 1-0

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.11"]
[Round "9"]
[White "Garcia Pantoja, Roberto"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2536"]
[BlackElo "2330"]
[PlyCount "24"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[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 Re8 10. Ng5 Rf8 11. Nf3 Re8 12. Ng5 Rf8 1/2-1/2

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.11"]
[Round "8"]
[White "Palencia Morales, Wilson Guillermo"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2279"]
[BlackElo "2330"]
[PlyCount "54"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bh4 Nxc3 6. bxc3 Bg7 7. e3 0-0 8. Be2 c5 9. 0-0 Nc6 10. Bb5 Na5 11. Be2 Bf5 12. Ne5 Rc8 13. g4 Bd7 14. f4 Ba4 15. Bd3 Qc7 16. Qf3 c4 17. Be2 e6 18. g5 Bxe5 19. fxe5 Bxc2 20. Qg2 Nc6 21. Rf4 Ne7 22. Bg4 Bd3 23. Be1 Qb6 24. Rf2 Be4 25. Qg3 Rc6 26. Qh4 Qa5 27. Qh6 Qa3 0-1

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.10"]
[Round "6"]
[White "Aponte Castillo, Jose Ernesto"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2048"]
[BlackElo "2330"]
[PlyCount "104"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. Re1 d5 6. d3 a5 7. a4 Na6 8. Bd2 Nc5 9. Bc3 b6 10. Nbd2 Bb7 11. b3 Re8 12. Qc1 Nfd7 13. Bxg7 Kxg7 14. Qb2+ Kg8 15. d4 Na6 16. e4 dxe4 17. Nxe4 Nf6 18. Ne5 Bxe4 19. Bxe4 Nxe4 20. Rxe4 Qd6 21. Rae1 Nb4 22. Qc1 Kg7 23. Nxf7 Kxf7 24. Qh6 Rh8 25. Rxe7+ Qxe7 26. Rxe7+ Kxe7 27. Qg7+ Kd6 28. Qe5+ Kd7 29. c3 Rhe8 30. Qb5+ c6 31. Qxb6 Re1+ 32. Kg2 Nd5 33. Qc5 Rc1 34. c4 Rc2 35. Kh3 g5 36. Qa3 Nb4 37. Qa1 Rg8 38. Qb1 h5 39. d5 cxd5 40. cxd5 Rf8 41. Qe1 Rf6 42. Qe4 Rcxf2 43. Qh7+ Kd6 44. Qxh5 R2f5 45. Qe8 Kxd5 46. Qb5+ Kd4 47. Qc4+ Ke3 48. Qc1+ Ke2 49. Qc4+ Nd3 50. Qe4+ Kd2 51. Qd4 Re5 52. Kg4 Re4+ 0-1

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.09"]
[Round "5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Betancourt Giraldo, David Rogelio"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2330"]
[BlackElo "2151"]
[PlyCount "69"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. h3 Nbd7 4. Bf4 c6 5. c3 Qc7 6. e3 e5 7. Bh2 e4 8. Nfd2 Qd8 9. c4 d5 10. Nc3 a6 11. cxd5 cxd5 12. Qb3 Qa5 13. Be2 Be7 14. 0-0 0-0 15. f3 exf3 16. Bxf3 Bb4 17. Ndb1 Be7 18. Nxd5 Nxd5 19. Bxd5 Nf6 20. Bf3 Ra7 21. Nc3 b5 22. Nd5 Qd8 23. Rad1 Bd6 24. Bxd6 Qxd6 25. Nxf6+ Qxf6 26. e4 Be6 27. d5 Bc8 28. Qe3 Re7 29. d6 Re5 30. d7 Bb7 31. Qa7 Ba8 32. Qc7 Rd8 33. Bh5 Qg5 34. Bxf7+ Kh8 35. Rc1 1-0

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.09"]
[Round "4"]
[White "Prasca Sosa, Rafael Felipe"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2392"]
[BlackElo "2330"]
[PlyCount "64"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 Bc5 6. Nc3 b5 7. Bb3 d6 8. Nd5 h6 9. Nxf6+ Qxf6 10. Bd5 Bd7 11. c3 Rb8 12. h3 Ne7 13. Bb3 Bb6 14. Be3 g5 15. Qd2 Ng6 16. 0-0-0 Nf4 17. Ne1 c5 18. h4 Ke7 19. g3 Be6 20. Kb1 Ba5 21. Bc2 b4 22. c4 Bd7 23. gxf4 gxf4 24. Bb3 fxe3 25. fxe3 Rhg8 26. Nc2 Rg4 27. Rhf1 Qg6 28. d4 Bc6 29. Rf5 Bc7 30. Rdf1 Rf8 31. d5 Bd7 32. Rf6 Qh5 1/2-1/2

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.08"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Garnier, Rene Augusto"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2330"]
[BlackElo "2203"]
[PlyCount "58"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3 Bxc3+ 8. bxc3 dxc4 9. Qxc4 Qe7 10. e4 0-0 11. Bd3 b6 12. Qa4 Bb7 13. 0-0 Nd7 14. Rfe1 Rfd8 15. Rad1 c5 16. d5 e5 17. d6 Qf6 18. Ba6 Bxa6 19. Qxa6 Qe6 20. a4 Nf6 21. Qb7 Qd7 22. Qc7 Rac8 23. Qxd7 Nxd7 24. c4 Rc6 25. Rd5 Nf6 26. Nxe5 Rcxd6 27. Rxd6 Rxd6 28. f3 Nd7 29. Nxd7 Rxd7 1/2-1/2

[Event "Medellin Castro Memorial 36th"]
[Site "Medellin"]
[Date "2019.08.08"]
[Round "2"]
[White "Moran, Daniel Stiven"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "2155"]
[BlackElo "2330"]
[PlyCount "66"]
[EventDate "2019.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. Ne5 g6 6. Bf4 Nh5 7. Qd2 f6 8. Nf3 Nxf4 9. Qxf4 dxc4 10. e4 b5 11. h4 Nd7 12. Rd1 Bb7 13. Be2 Qb8 14. Qg4 Bc8 15. h5 Nb6 16. Qh4 g5 17. Nxg5 fxg5 18. Qxg5 Qd6 19. h6 Be6 20. Bh5+ Kd8 21. Bf3 Rg8 22. Qe3 Kc7 23. Rh5 Rd8 24. d5 cxd5 25. exd5 Bg4 26. Bxg4 Rxg4 27. Kf1 Qg6 28. Re5 Rxg2 29. Qc5+ Kb8 30. Re6 Rg1+ 31. Ke2 Qh5+ 32. Kd2 Qxd1+ 33. Nxd1 Rxd5+ 0-1

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.28"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Franke, Thomas"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2290"]
[BlackElo "2153"]
[PlyCount "143"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bc5 5. Bg2 0-0 6. 0-0 Re8 7. a3 a5 8. d3 h6 9. b3 d6 10. e3 Bb6 11. d4 Bg4 12. d5 Nb8 13. Qc2 Qd7 14. Bd2 Na6 15. Na4 Bf5 16. Qb2 Rac8 17. Rfc1 Be4 18. Ne1 Bxg2 19. Kxg2 Ne4 20. f3 Ng5 21. Nxb6 cxb6 22. e4 Qh3+ 23. Kg1 f5 24. Bxg5 hxg5 25. exf5 Qxf5 26. Qc2 e4 27. fxe4 Qxe4 28. Qxe4 Rxe4 29. Nf3 a4 30. bxa4 Nc5 31. Nxg5 Rg4 32. h4 Nb3 33. Kh2 Nxc1 34. Rxc1 Rgxc4 35. Rb1 R4c5 36. Rxb6 Rxd5 37. Rxb7 Re5 38. Rd7 d5 39. a5 d4 40. Nf3 Rxa5 41. Nxd4 Re8 42. Rc7 g6 43. Rc6 Re4 44. Ne6 Re2+ 45. Kh3 Rxa3 46. Nf4 Re4 47. Rxg6+ Kh7 48. Rg4 Ra1 49. Rg5 Rxf4 50. gxf4 Rh1+ 51. Kg4 Ra1 52. Re5 Kg6 53. Re6+ Kf7 54. Kf5 Rh1 55. Rh6 Kg7 56. Rg6+ Kf7 57. Rg4 Ra1 58. Kg5 Ra8 59. h5 Rg8+ 60. Kf5 Ra8 61. Rg5 Ra5+ 62. Kg4 Ra1 63. h6 Rg1+ 64. Kf5 Rh1 65. Rg7+ Kf8 66. Kg6 Rg1+ 67. Kf6 Rh1 68. Rg6 Rh4 69. Kg5 Rh1 70. Ra6 Kf7 71. h7 Kg7 72. h8Q+ 1-0

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.27"]
[Round "8"]
[White "Izquierdo Arruferia, Joseba"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "1918"]
[BlackElo "2290"]
[PlyCount "42"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 Nf6 6. 0-0 d5 7. Nbd2 0-0 8. c3 dxe4 9. dxe4 Bg4 10. Qc2 Nd7 11. Nc4 Rc8 12. a4 Be6 13. Ne3 Nd4 14. cxd4 cxd4 15. Qd2 Nc5 16. Ra3 Nxe4 17. Qb4 a5 18. Qxb7 Nd6 19. Qa7 dxe3 20. Rxe3 Rc7 21. Qxa5 Rxc1 0-1

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.26"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Cinza Lopez, Javier"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2290"]
[BlackElo "2069"]
[PlyCount "143"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 c6 5. Bc4 Nf6 6. Nf3 Bf5 7. Ne5 e6 8. g4 Be4 9. Nxe4 Nxe4 10. Qf3 Nd6 11. Bb3 Nd7 12. Bf4 Nxe5 13. Bxe5 Qa5+ 14. c3 Qb5 15. 0-0-0 a5 16. Rhe1 a4 17. Bxe6 fxe6 18. Bxd6 0-0-0 19. Bg3 Bd6 20. Rxe6 Bxg3 21. Qxg3 Qd5 22. Qe5 Rhf8 23. Qxd5 Rxd5 24. Rd2 Rg5 25. Re4 h5 26. gxh5 Rxh5 27. h4 Rhf5 28. Ree2 Rf4 29. h5 R4f5 30. Re7 Rxh5 31. Kd1 Rhf5 32. Ke1 g5 33. Rde2 Rb5 34. a3 Kd8 35. R7e5 Rf5 36. Re8+ Kc7 37. Ra8 Ra5 38. Re7+ Kb6 39. Rxa5 Rxa5 40. c4 Rf5 41. Ke2 g4 42. Re4 Rf3 43. Rxg4 Rb3 44. Rg3 Rxb2+ 45. Ke3 Kc7 46. Rg7+ Kd6 47. Ke4 Re2+ 48. Kd3 Rxf2 49. c5+ Kd5 50. Rd7+ Ke6 51. Rxb7 Ra2 52. Rc7 Rxa3+ 53. Kc4 Ra1 54. Rxc6+ Kd7 55. Ra6 Kc7 56. Kd5 a3 57. c6 Rh1 58. Ra7+ Kb6 59. Rb7+ Ka6 60. Rb8 Rh7 61. Rb1 a2 62. Ra1 Kb6 63. Rxa2 Rh5+ 64. Ke6 Rh6+ 65. Ke7 Rh7+ 66. Kd6 Rh6+ 67. Kd5 Rh5+ 68. Kc4 Kxc6 69. Ra6+ Kd7 70. Rg6 Ra5 71. d5 Ra1 72. Rg7+ 1/2-1/2

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.25"]
[Round "6"]
[White "Starostits, Ilmars"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2462"]
[BlackElo "2290"]
[PlyCount "67"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 d6 7. f4 Nge7 8. Nf3 Nd4 9. 0-0 0-0 10. e5 Nef5 11. Bf2 Rb8 12. Ne4 dxe5 13. Nxe5 f6 14. Nc4 b6 15. g4 Ne7 16. c3 Ndc6 17. a4 f5 18. Ned6 fxg4 19. Qxg4 e5 20. Nxc8 Qxc8 21. Qxc8 Rbxc8 22. fxe5 Bxe5 23. Rae1 Bg7 24. Re6 Rf6 25. Rfe1 Rxe6 26. Rxe6 Kf7 27. Rd6 Ke8 28. Bh4 Nd8 29. Bh3 Rc7 30. Bg3 Rb7 31. a5 b5 32. a6 Rb8 33. Bd7+ Kf8 34. Bxb5 1-0

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.24"]
[Round "5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Sancinena Arpide, Juan"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2290"]
[BlackElo "1606"]
[PlyCount "85"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. e3 Nf6 4. Nc3 Bd6 5. Qc2 Nbd7 6. b3 c5 7. Bb2 0-0 8. Be2 b6 9. g4 Bb7 10. g5 Ne4 11. cxd5 exd5 12. Nxe4 dxe4 13. Qc3 f6 14. Bc4+ Kh8 15. gxf6 Qxf6 16. Rg1 exf3 17. Rxg7 Be5 18. Rxd7 Bxc3 19. Bxc3 Bc6 20. Rc7 Be4 21. 0-0-0 a6 22. Bf7 Qxc3+ 23. dxc3 Rad8 24. Rcd7 Rxd7 25. Rxd7 Bf5 26. Re7 Kg7 27. Bd5+ Kf6 28. Rb7 Ke5 29. c4 Rf6 30. Kd2 Rh6 31. e4 Rxh2 32. exf5 Rxf2+ 33. Ke3 Rxa2 34. Bxf3 b5 35. cxb5 a5 36. Be4 Rb2 37. Re7+ Kd6 38. Re6+ Kd7 39. Bc6+ Kc7 40. Bd5 Rb1 41. b6+ Kc8 42. b7+ Kc7 43. Re7+ 1-0

[Event "San Sebastian Gros op 29th"]
[Site "San Sebastian"]
[Date "2019.06.23"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Torres, Patrice"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2290"]
[BlackElo "1895"]
[PlyCount "46"]
[EventDate "2019.06.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 g6 3. Nf3 Bg7 4. c3 d5 5. e5 Nh6 6. Bd3 0-0 7. h4 Bg4 8. h5 Nf5 9. Bf4 e6 10. Nbd2 Bxh5 11. Rxh5 gxh5 12. Ng5 h6 13. Qxh5 hxg5 14. g4 f6 15. gxf5 Qe8 16. Qh3 gxf4 17. 0-0-0 fxe5 18. fxe6 e4 19. Nxe4 dxe4 20. Bxe4 Rf6 21. Qh7+ Kf8 22. Rg1 Qe7 23. d5 cxd5 1/2-1/2

[Event "Forni di Sopra op 10th"]
[Site "Forni di Sopra"]
[Date "2019.06.22"]
[Round "9"]
[White "Castellanos Rodriguez, Renier"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2511"]
[BlackElo "2290"]
[PlyCount "85"]
[EventDate "2019.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 d5 5. c4 c6 6. Bg2 0-0 7. 0-0 a5 8. d3 Na6 9. Nbd2 a4 10. Bc3 axb3 11. axb3 Bg4 12. h3 Bxf3 13. Nxf3 Re8 14. Qc2 Nd7 15. d4 Qb6 16. e3 Nb4 17. Qd2 Ra5 18. Ra2 Rxa2 19. Ra1 Na6 20. Qxa2 Qc7 21. Qa5 Qxa5 22. Rxa5 e6 23. Bf1 Ndc5 24. Nd2 Ra8 25. b4 Nd7 26. c5 Bf6 27. Nb3 Bd8 28. Ra1 Nc7 29. Rxa8 Nxa8 30. b5 cxb5 31. Bxb5 Nb8 32. Na5 Bxa5 33. Bxa5 Nc6 34. Bxc6 bxc6 35. Kg2 Kf8 36. Kf3 Ke7 37. Kf4 f6 38. h4 Kd7 39. f3 Nc7 40. Bxc7 Kxc7 41. e4 h6 42. Ke3 Kd7 43. exd5 1/2-1/2

[Event "Forni di Sopra op 10th"]
[Site "Forni di Sopra"]
[Date "2019.06.21"]
[Round "8"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Bellia, Fabrizio"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2290"]
[BlackElo "2450"]
[PlyCount "84"]
[EventDate "2019.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. Nc3 d6 8. a3 0-0 9. Nd5 Na5 10. Ba2 c6 11. Nxf6+ Bxf6 12. b4 Nb7 13. Bb2 Qe7 14. 0-0 Be6 15. c4 Rfc8 16. Re1 a5 17. cxb5 cxb5 18. Bd5 Bxd5 19. exd5 Qd7 20. Nd2 Bg5 21. Ne4 Bh6 22. Qh5 Qd8 23. d4 Rc2 24. Rab1 axb4 25. axb4 f6 26. Bc1 Bxc1 27. Rexc1 Rxc1+ 28. Rxc1 exd4 29. h3 d3 30. Qd1 f5 31. Ng3 Qg5 32. Rc7 f4 33. Ne4 Qxd5 34. Qg4 Qe5 35. Rc8+ Rxc8 36. Qxc8+ Kf7 37. Qxb7+ Ke6 38. Qc6 Qd4 39. Ng5+ Kf6 40. Ne4+ Ke6 41. Nc5+ Kf6 42. Ne4+ Ke5 1/2-1/2

[Event "Forni di Sopra op 10th"]
[Site "Forni di Sopra"]
[Date "2019.06.20"]
[Round "7"]
[White "Sonis, Francesco"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D72"]
[WhiteElo "2494"]
[BlackElo "2290"]
[PlyCount "116"]
[EventDate "2019.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 c5 8. d5 e6 9. 0-0 exd5 10. exd5 0-0 11. Nec3 Na6 12. Nd2 Bf5 13. Nde4 Bxe4 14. Bxe4 Re8 15. Bg2 Qd7 16. Bf4 Nb4 17. d6 Be5 18. Ne4 Qf5 19. Be3 Bxb2 20. Rb1 Bg7 21. g4 Qe5 22. f4 Qe6 23. Bxc5 Nxa2 24. Qb3 Qxb3 25. Rxb3 Nd7 26. Bf2 b6 27. Ng5 Nc3 28. Bxa8 Rxa8 29. Re1 Nd5 30. Rb5 Nxf4 31. Re7 Nf6 32. d7 Rd8 33. Bg3 Bf8 34. Rxf7 Nh3+ 35. Kg2 Nxg5 36. Rxf6 Ne4 37. Re6 Nc5 38. Re8 Rxd7 39. Rb2 Kf7 40. Ra8 Nd3 41. Rb1 Bc5 42. Rf1+ Ke6 43. Rf3 Nb4 44. Re8+ Kd5 45. Be1 Kc6 46. Rb8 Nd3 47. Bg3 a5 48. Ra8 Kb5 49. Rf1 Kc4 50. Rb1 Bb4 51. Rc8+ Nc5 52. Bf2 Ra7 53. Rc6 Rb7 54. Rc8 a4 55. Ra8 a3 56. Be1 Ba5 57. Rc1+ Kb5 58. Rb1+ Kc6 1/2-1/2

[Event "Forni di Sopra op 10th"]
[Site "Forni di Sopra"]
[Date "2019.06.18"]
[Round "4"]
[White "Cruz, Cristhian"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D42"]
[WhiteElo "2561"]
[BlackElo "2290"]
[PlyCount "69"]
[EventDate "2019.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 Nxd5 5. Nf3 c5 6. e3 Nc6 7. Bd3 Be7 8. 0-0 0-0 9. a3 b6 10. Qc2 h6 11. dxc5 Nxc3 12. cxb6 Nd5 13. Qxc6 Bd7 14. Qc2 Rc8 15. Qe2 Nxb6 16. b3 Rc3 17. Bb2 Rxb3 18. Nd4 Rxd3 19. Qxd3 Na4 20. Rab1 Nc5 21. Qc2 Qa8 22. Rfc1 Qd5 23. Ba1 f6 24. Ne2 e5 25. Ng3 Rd8 26. Rd1 Qe6 27. Bc3 Rc8 28. Qe2 Na4 29. Be1 a6 30. e4 Be8 31. Nf5 Bf8 32. Qg4 Kh7 33. Rb7 Bg6 34. Rdd7 Rc1 35. Qxg6+ 1-0

[Event "Forni di Sopra op 10th"]
[Site "Forni di Sopra"]
[Date "2019.06.16"]
[Round "2"]
[White "Deac, Bogdan Daniel"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2623"]
[BlackElo "2290"]
[PlyCount "55"]
[EventDate "2019.06.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 0-0 8. 0-0 Qe7 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 h6 12. c5 Bc7 13. Bd2 Rd8 14. b4 Nf6 15. Bd3 Bd7 16. Rfe1 Be8 17. a4 b6 18. Rab1 g5 19. h3 Kg7 20. Rbc1 Rab8 21. Bc4 bxc5 22. dxc5 Rxd2 23. Qxd2 Bf4 24. Qc3 Bxc1 25. Rxc1 Kg8 26. Ne5 a5 27. bxa5 Qxc5 28. Nxf7 1-0

[Event "Cattolica op 6th"]
[Site "Cattolica"]
[Date "2019.06.14"]
[Round "9"]
[White "Kjartansson, Gudmundur"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2459"]
[BlackElo "2290"]
[PlyCount "143"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nb6 6. d3 Bg7 7. Be3 0-0 8. Qd2 Re8 9. h4 h5 10. Nf3 Nc6 11. Rc1 e5 12. 0-0 Nd4 13. Bh6 c6 14. Nxd4 exd4 15. Ne4 Nd5 16. Bxg7 Kxg7 17. Rc4 Nb6 18. Rc5 Be6 19. b3 Bd5 20. Qf4 Bxe4 21. Bxe4 Qb8 22. Qxb8 Raxb8 23. Ra5 a6 24. Rc1 f5 25. Bf3 Kf6 26. Kf1 Re5 27. Rxe5 Kxe5 28. Ke1 Kd6 29. Kd2 Re8 30. e3 dxe3+ 31. fxe3 Nd7 32. d4 Nf6 33. b4 Nd7 34. Kd3 Nf6 35. a4 Ne4 36. Bxe4 fxe4+ 37. Ke2 Rf8 38. g4 Rh8 39. g5 Rf8 40. Rc5 Re8 41. a5 b6 42. Re5 Rb8 43. Rxe4 bxa5 44. bxa5 Rb5 45. Rf4 Rxa5 46. Rf6+ Kd5 47. Rxg6 Ra2+ 48. Kf3 Rh2 49. e4+ Kxd4 50. Rxc6 Rxh4 51. Rxa6 Ke5 52. Ra5+ Ke6 53. Rf5 Rg4 54. Ke3 h4 55. Kf3 Rg1 56. Kf4 Ke7 57. Ra5 h3 58. Ra7+ Ke6 59. Ra6+ Kf7 60. Rf6+ Kg7 61. Rh6 Rf1+ 62. Kg4 Re1 63. Kf5 Rf1+ 64. Ke6 Rg1 65. Rxh3 Rxg5 66. e5 Rg1 67. Ke7 Kg8 68. e6 Rg7+ 69. Ke8 Rg1 70. e7 Kg7 71. Rd3 Ra1 72. Kd7 1-0

[Event "Cattolica op 6th"]
[Site "Cattolica"]
[Date "2019.06.10"]
[Round "4"]
[White "Vovk, Yuri"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2586"]
[BlackElo "2290"]
[PlyCount "43"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. g4 Nxd4 10. Bxd4 Be6 11. Nd5 Bxd5 12. exd5 Nd7 13. Bxg7 Kxg7 14. 0-0-0 Qc7 15. h4 f6 16. f4 Rac8 17. Rh3 Nb6 18. h5 Qd7 19. Re1 Rf7 20. hxg6 hxg6 21. Bd3 Qxg4 22. Qh2 1-0

[Event "Cattolica op 6th"]
[Site "Cattolica"]
[Date "2019.06.09"]
[Round "2"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Barseghyan, Harutyun"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2290"]
[BlackElo "2495"]
[PlyCount "96"]
[EventDate "2019.06.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ITA"]
[SourceTitle "CBM 190 Extra"]
[Source "ChessBase"]
[SourceDate "2019.07.15"]
[SourceVersion "1"]
[SourceVersionDate "2019.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. c4 g6 5. cxb5 a6 6. bxa6 Bg7 7. Nc3 Bxa6 8. g3 d6 9. Bg2 Nfd7 10. 0-0 Nb6 11. Qc2 N8d7 12. Rd1 0-0 13. e4 Nc4 14. h3 Qa5 15. a4 Rfb8 16. Ra2 Qb4 17. Bf1 Nde5 18. Ne1 Na5 19. Bxa6 Rxa6 20. Qe2 Qc4 21. f4 Qxe2 22. Nxe2 Nec4 23. Nd3 Nb3 24. f5 Kf8 25. Bf4 Rba8 26. Nec1 Rb6 27. Kg2 Nd4 28. fxg6 hxg6 29. Re1 Rab8 30. a5 Rb5 31. a6 Ra8 32. e5 dxe5 33. Nxe5 Bxe5 34. Bxe5 Nc2 35. Re4 Nxe5 36. Rxe5 Nb4 37. Ra3 Rxa6 38. Ne2 Rxa3 39. bxa3 Nc2 40. Re4 Nxa3 41. Ra4 Nc2 42. Nc3 Rb3 43. Ne4 Ne3+ 44. Kf2 Nd1+ 45. Kg2 c4 46. Ra8+ Kg7 47. d6 exd6 48. Nxd6 c3 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Oparina, Karina"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2290"]
[BlackElo "2238"]
[PlyCount "63"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[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 c5 4. dxc5 e6 5. a3 Bxc5 6. b4 Bb6 7. Bb2 Ne7 8. c4 dxc4 9. Qxd8+ Bxd8 10. Bxc4 b6 11. Nf3 Bb7 12. Nbd2 Nbc6 13. Ne4 0-0 14. Nd6 Bc8 15. Rc1 a6 16. Ke2 b5 17. Bd3 Bd7 18. Rhd1 Nd5 19. Be4 Nce7 20. g3 Bb6 21. Ng5 h6 22. Nh3 a5 23. Nf4 axb4 24. Bxd5 bxa3 25. Bxa8 axb2 26. Rb1 Rxa8 27. Rxb2 g5 28. Nh5 Nd5 29. Rxd5 exd5 30. Nf6+ Kg7 31. Nxd7 Bd4 32. Nf5+ 1-0

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Stevens, Christian"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2290"]
[BlackElo "2260"]
[PlyCount "107"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[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 a6 5. g3 Qc7 6. Bg2 Nc6 7. 0-0 Nf6 8. Nc3 Nxd4 9. Qxd4 Bc5 10. Qd1 h5 11. Bf4 d6 12. Na4 e5 13. Bg5 Ba7 14. Bxf6 gxf6 15. Nc3 Be6 16. Nd5 Bxd5 17. Qxd5 h4 18. Rfd1 Ke7 19. c3 Rag8 20. Rd3 hxg3 21. hxg3 Qc6 22. Qb3 Qb6 23. Qxb6 Bxb6 24. Rad1 Rd8 25. Bf3 Ba7 26. R1d2 Rhg8 27. Kg2 Rh8 28. Bd1 Rhg8 29. Bb3 Rg5 30. Rf3 Rh8 31. Rfd3 Rd8 32. Bd5 Rd7 33. a4 f5 34. Rf3 f4 35. Kf1 Rg4 36. Rd1 Rd8 37. Ke2 Rb8 38. Rh1 b5 39. Rh7 Rf8 40. a5 b4 41. cxb4 Bd4 42. b5 axb5 43. Rb3 fxg3 44. fxg3 Kf6 45. Rf3+ Kg6 46. Rhxf7 Rxf7 47. Bxf7+ Kg7 48. Bd5 b4 49. a6 Kh6 50. Rf6+ Rg6 51. Rxg6+ Kxg6 52. Kd3 Kg5 53. Be6 b3 54. Kc4 1-0

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "4"]
[White "Kavutskiy, Konstantin"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D42"]
[WhiteElo "2417"]
[BlackElo "2290"]
[PlyCount "134"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[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 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 cxd4 8. exd4 Be7 9. 0-0 0-0 10. Re1 b6 11. a3 Bb7 12. Bc2 Bf6 13. Qd3 g6 14. Bh6 Re8 15. Rad1 Rc8 16. Ne4 Bg7 17. Bxg7 Kxg7 18. Bb1 Nf6 19. Neg5 Qd5 20. h3 Ne7 21. Qe3 h6 22. Nxf7 Kxf7 23. Qxh6 Qh5 24. Ng5+ Kg8 25. Qxh5 Nxh5 26. Rxe6 Nf4 27. Rf6 Ne2+ 28. Kh2 Rf8 29. Ba2+ Kh8 30. Nf7+ Kg7 31. Re6 Rxf7 32. Rxe2 Bd5 33. Bxd5 Nxd5 34. g3 Rfc7 35. Kg2 Rc2 36. Rdd2 Rxd2 37. Rxd2 g5 38. Kf3 Kf6 39. Ke4 Ke6 40. Kd3 Nf6 41. Re2+ Kd6 42. Re5 g4 43. Rf5 Ke6 44. Re5+ Kf7 45. hxg4 Nxg4 46. Rf5+ Ke6 47. Rf4 Nf6 48. f3 Rc1 49. Rh4 Rg1 50. g4 Rg3 51. Ke2 Rg2+ 52. Ke3 Rxb2 53. Rh6 Kf7 54. g5 Rb3+ 55. Kf4 Nd5+ 56. Ke5 Ne7 57. Rh7+ Ke8 58. f4 Rxa3 59. f5 Ra5+ 60. Ke6 Ng8 61. f6 Rxg5 62. f7+ Kf8 63. Rh8 Rg6+ 64. Kd7 Kxf7 65. d5 Nf6+ 66. Kc7 Nxd5+ 67. Kb7 a5 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "9"]
[White "Soham, Das1111"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B70"]
[WhiteElo "2367"]
[BlackElo "2290"]
[PlyCount "60"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Nb3 Bg7 7. Be2 0-0 8. 0-0 a6 9. a4 b6 10. Be3 Bb7 11. Bf3 Nfd7 12. Nd4 Nc6 13. Nd5 e6 14. Nc3 Nc5 15. Qd2 Ne5 16. b4 Nc4 17. Qe2 Nxe3 18. Qxe3 Nd7 19. Rfd1 Rc8 20. Be2 Ne5 21. b5 a5 22. Ra3 Qe7 23. f4 Nc4 24. Bxc4 Rxc4 25. Nde2 d5 26. exd5 Qxa3 27. dxe6 Bxc3 28. e7 Re8 29. Rd8 Qa1+ 30. Kf2 Qe1# 0-1

[Event "Titled Tuesday intern op 2nd April"]
[Site "Chess.com INT"]
[Date "2019.04.02"]
[Round "6"]
[White "Vusatiuk, Vladimir"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2323"]
[BlackElo "2290"]
[PlyCount "144"]
[EventDate "2019.04.02"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nf6 5. Bb5+ Bd7 6. c4 Nc6 7. Bxc6 Bxc6 8. Nc3 g6 9. 0-0 Bg7 10. Qd3 0-0 11. Nd4 Qa5 12. Bd2 Qh5 13. h3 Nd7 14. Nd5 Bxd5 15. cxd5 Rfc8 16. f4 Nb6 17. Rac1 Rxc1 18. Rxc1 Rc8 19. Rxc8+ Nxc8 20. g4 Qh4 21. Kg2 h5 22. g5 Bxd4 23. Qxd4 f6 24. Qe3 fxg5 25. fxg5 Nb6 26. b3 e5 27. dxe6 d5 28. Qf3 Qxe4 29. Qxe4 dxe4 30. Bb4 Nd5 31. Bd6 a6 32. Kf2 b5 33. Ke2 Kg7 34. a3 Kg8 35. Kd2 Kg7 36. a4 Kg8 37. axb5 axb5 38. Ke1 Ne3 39. Ke2 Nf5 40. Bc5 Ng7 41. e7 Kf7 42. Ke3 Ne6 43. Bd6 Nxg5 44. h4 Nf3 45. Kxe4 Nxh4 46. Kd5 Nf5 47. Bf4 Kxe7 48. Bg5+ Kd7 49. Kc5 Nd6 50. Bf4 Ne4+ 51. Kxb5 g5 52. Be3 h4 53. Kc4 h3 54. Bg1 Nd2+ 55. Kd3 Nf3 56. Ke3 Nxg1 57. Kf2 h2 58. Kg2 Nf3 59. b4 Kc6 60. Kh1 Kb5 61. Kg2 Kxb4 62. Kh1 Kc3 63. Kg2 Kd3 64. Kh1 Ke2 65. Kg2 g4 66. Kh1 Nd4 67. Kg2 Nf5 68. Kh1 Kf1 69. Kxh2 g3+ 70. Kh3 g2 71. Kh2 g1Q+ 72. Kh3 Qg3# 0-1

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.27"]
[Round "9"]
[White "Zuo, Yifan"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D77"]
[WhiteElo "2262"]
[BlackElo "2337"]
[PlyCount "55"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. c4 d5 5. Bg2 0-0 6. 0-0 dxc4 7. Na3 c3 8. bxc3 c5 9. e3 Nc6 10. Bb2 Qb6 11. Nc4 Qa6 12. Nfe5 Be6 13. Qd3 Rfd8 14. Rfd1 Ng4 15. Na3 Qb6 16. Nec4 Qc7 17. Qe2 cxd4 18. cxd4 Nf6 19. Rac1 Rac8 20. e4 Bxc4 21. Nxc4 b5 22. Ne3 Qb7 23. e5 Ne8 24. Qf3 Qa6 25. Rxc6 Qxa2 26. Qe2 Rxc6 27. Bxc6 Nc7 28. Ra1 1-0

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.26"]
[Round "8"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Stukan, Martin"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2337"]
[BlackElo "2169"]
[PlyCount "115"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. c4 e5 8. Qd3 b5 9. Nc3 bxc4 10. Qxc4 Be6 11. Qd3 h6 12. 0-0 Nf6 13. Rd1 Be7 14. Ne1 0-0 15. Nc2 Qa5 16. Ne3 Rfc8 17. Bd2 Qb6 18. b3 Qd4 19. Be1 Qxd3 20. Rxd3 Rc5 21. f3 Rac8 22. Rad1 Kf8 23. Na4 Rc1 24. Nb6 Rxd1 25. Rxd1 Rb8 26. Nbc4 Rd8 27. Bb4 Bxc4 28. Nxc4 d5 29. Bxe7+ Kxe7 30. Nxe5 Ke6 31. Nd3 dxe4 32. Nc5+ Ke7 33. Rxd8 Kxd8 34. fxe4 Kc7 35. Nxa6+ Kb6 36. Nb4 Nxe4 37. Nd3 Nc3 38. a4 Ne4 39. b4 f5 40. Ne5 Nc3 41. Nc4+ Ka7 42. a5 Ka6 43. Ne3 g6 44. Kf2 Kb5 45. Nc2 Nd5 46. Ke2 Nf4+ 47. Kf3 Nd5 48. g3 Ka6 49. Ke2 f4 50. gxf4 Nxf4+ 51. Ke3 g5 52. Kd4 h5 53. Ke4 Ne2 54. Nd4 Ng1 55. Kd5 g4 56. b5+ Kxa5 57. Kc5 Nf3 58. Nc6+ 1-0

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.25"]
[Round "7"]
[White "Kolay, Alex"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2227"]
[BlackElo "2337"]
[PlyCount "59"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Bg5 Bg7 7. e3 h6 8. Bh4 0-0 9. Nf3 g5 10. Bg3 c5 11. dxc5 N6d7 12. Bc4 Nc6 13. 0-0 Nxc5 14. Qc2 Be6 15. Bxe6 Nxe6 16. Rfd1 Qa5 17. Nd5 f5 18. Qb3 Nc5 19. Qc4 e6 20. Nc7 Rad8 21. Nxe6 Nxe6 22. Qxe6+ Kh8 23. Rd6 Rxd6 24. Bxd6 Rf6 25. Qe8+ Kh7 26. Ba3 Qd5 27. Qh5 Rg6 28. h4 Ne5 29. Nxg5+ Kg8 30. Rd1 1-0

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.24"]
[Round "5"]
[White "Geshko, Aleksey"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B41"]
[WhiteElo "2192"]
[BlackElo "2337"]
[PlyCount "114"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. a3 Be7 8. Be3 d6 9. Be2 Nbd7 10. Rc1 0-0 11. 0-0 b6 12. f3 Bb7 13. b4 Rac8 14. Qd2 Qb8 15. Rfd1 Rfe8 16. Kh1 Kh8 17. Bf1 Bd8 18. Nb3 Bc7 19. Bf4 Ne5 20. Bxe5 dxe5 21. c5 b5 22. a4 bxa4 23. Nxa4 Bc6 24. Nb2 Rcd8 25. Qc3 Bb5 26. Bxb5 axb5 27. c6 Qb6 28. Qc5 Rxd1+ 29. Rxd1 h6 30. g3 Ra8 31. Qxb6 Bxb6 32. Ra1 Rxa1+ 33. Nxa1 Kg8 34. Nd3 Ne8 35. Nb3 f6 36. Nbc5 Kf7 37. Nb7 Ke7 38. Kg2 Nc7 39. Ndc5 Bxc5 40. Nxc5 Kd6 41. g4 Kxc6 42. h4 g6 43. Kf2 Kd6 44. Ke2 Ne8 45. Kf2 Ng7 46. Kg3 f5 47. Kf2 h5 48. g5 Ne8 49. Ke3 Nc7 50. Ke2 Na8 51. Ke3 Nb6 52. Ke2 Nc4 53. Nd3 Nb6 54. Nc5 Nc8 55. Ke3 Ne7 56. Nb7+ Kd7 57. Nc5+ Kd6 1/2-1/2

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.24"]
[Round "6"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Balajayeva, Khanim Asad Qizi"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2337"]
[BlackElo "2397"]
[PlyCount "56"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 d6 6. c3 0-0 7. Re1 Na5 8. Bb5 a6 9. Ba4 b5 10. Bc2 c5 11. Nbd2 Nc6 12. Nf1 Re8 13. h3 h6 14. Be3 d5 15. exd5 Nxd5 16. a4 b4 17. Bd2 Bf8 18. a5 Bb7 19. Ba4 Qc7 20. Ng3 Rad8 21. d4 exd4 22. Rxe8 Rxe8 23. cxd4 Rd8 24. dxc5 Nf4 25. Qc2 Nxg2 26. Nf5 Nf4 27. Qc4 Nxh3+ 28. Kf1 Ne5 0-1

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.23"]
[Round "4"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Diakonova, Ekaterina"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2337"]
[BlackElo "2233"]
[PlyCount "137"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 c6 5. 0-0 h6 6. c4 e6 7. Nc3 Bd6 8. Qb3 Qc8 9. Bd2 0-0 10. Rac1 Ne4 11. Be3 Nxc3 12. Rxc3 Be4 13. Bh3 dxc4 14. Qxc4 Bxf3 15. exf3 Na6 16. f4 Nc7 17. Qe2 Nd5 18. Rcc1 f5 19. a3 Qd7 20. Rfe1 Be7 21. Bd2 Bf6 22. Qxe6+ Qxe6 23. Rxe6 Bxd4 24. b4 Rad8 25. a4 Nc7 26. Re2 g6 27. Bg2 Nd5 28. Kf1 Kf7 29. Be1 Rd7 30. Rd2 Nf6 31. Bf3 Rfd8 32. h3 h5 33. Bd1 Kg7 34. Bb3 a6 35. Be6 Rd6 36. Bc4 Ne4 37. Re2 h4 38. g4 b5 39. axb5 axb5 40. Ba2 R8d7 41. Bb1 Nf6 42. gxf5 Nh5 43. fxg6 Nxf4 44. Re4 Nxg6 45. Rg4 Bb2 46. Rc5 Kf7 47. Rf5+ Ke7 48. Rh5 Ne5 49. Re4 Kd8 50. Rhxe5 Bxe5 51. Rxe5 Rd4 52. Be4 Kc7 53. f3 Rc4 54. Ke2 Rg7 55. Bd3 Rc1 56. Kd2 Ra1 57. Bxh4 Ra2+ 58. Ke3 Rh2 59. Bf5 Rgg2 60. Kf4 Rb2 61. Be7 Rhd2 62. Bc5 Rg2 63. Re7+ Kd8 64. Re6 Kc7 65. Be4 Rh2 66. Rxc6+ Kd7 67. Rb6 Kc7 68. Rb7+ Kd8 69. Bf5 1-0

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.21"]
[Round "2"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Lugovskoy, Maxim"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2337"]
[BlackElo "2452"]
[PlyCount "70"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 a6 4. cxd5 exd5 5. Nc3 c6 6. e3 Nf6 7. Bd3 Bd6 8. 0-0 Nbd7 9. Rb1 0-0 10. Nh4 Re8 11. Nf5 Bc7 12. f3 Nf8 13. Bd2 Nh5 14. f4 Nf6 15. Ng3 c5 16. dxc5 d4 17. Nce4 Ng4 18. Qc2 Qh4 19. h3 Nxe3 20. Bxe3 dxe3 21. Ne2 Be6 22. b4 Rad8 23. Rbd1 Bd5 24. N4c3 Bc6 25. a4 Bd7 26. Nd5 Bb8 27. Bf5 Bc6 28. g3 Qh6 29. Nxe3 Rxd1 30. Nxd1 Qf6 31. Bd3 Ne6 32. Qc3 Qe7 33. Qc2 Qd7 34. Bxh7+ Kh8 35. Bf5 Qd5 0-1

[Event "Moscow Aeroflot op-B 18th"]
[Site "Moscow"]
[Date "2019.02.20"]
[Round "1"]
[White "Castrillon Gomez, Melissa"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2231"]
[BlackElo "2337"]
[PlyCount "31"]
[EventDate "2019.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 Be6 8. Qd2 Nc6 9. Nd4 Nxd4 10. cxd4 d5 11. 0-0-0 Qd7 12. Kb1 0-0 13. Bd3 Rfe8 14. f3 c6 15. g4 Bd6 16. h4 1/2-1/2

[Event "COL-chT"]
[Site "Ibague"]
[Date "2018.10.13"]
[Round "5.2"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Toro Castaneda, Miguel Angel"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2378"]
[BlackElo "1799"]
[PlyCount "114"]
[EventDate "2018.10.11"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]
[WhiteTeam "Antioquia"]
[BlackTeam "Antioquia II"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. f3 Nd6 5. Nc3 e6 6. e4 dxe4 7. fxe4 Be7 8. Nf3 0-0 9. Qd2 b6 10. 0-0-0 Bb7 11. Bd3 Nd7 12. e5 Ne8 13. Ne4 c5 14. dxc5 Nxc5 15. Nxc5 bxc5 16. Ng5 g6 17. h4 Ng7 18. Qe2 Qd4 19. Be4 Qa4 20. Bxb7 Qxf4+ 21. Qd2 Qxd2+ 22. Rxd2 Rad8 23. Be4 Nh5 24. Rhd1 Ng3 25. Bd3 h6 26. Nf3 g5 27. hxg5 hxg5 28. Ba6 g4 29. Rxd8 Bxd8 30. Nh2 Bg5+ 31. Kb1 Ne4 32. Nxg4 Nd2+ 33. Ka1 Rd8 34. Be2 Rd4 35. a3 Re4 36. Bf3 Rd4 37. c3 Rd3 38. Ka2 c4 39. Nf2 Rd8 40. Rh1 Kg7 41. Rh3 Bf4 42. Ng4 Rd3 43. Bc6 Rd8 44. a4 Kg6 45. Rh1 Kf5 46. Bf3 Rd3 47. Bd1 Rg3 48. Rh7 Kg6 49. Bc2+ Kg5 50. Nh6 f5 51. exf6 Kxf6 52. Rf7+ Ke5 53. Nf5 Rxg2 54. Nd4 Be3 55. Nc6+ Kd5 56. Nxa7 Ne4 57. Nc6 Nxc3+ 0-1

[Event "COL-chT"]
[Site "Ibague"]
[Date "2018.10.13"]
[Round "6.2"]
[White "Lozada Zuniga, Andres"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "1928"]
[BlackElo "2378"]
[PlyCount "87"]
[EventDate "2018.10.11"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]
[WhiteTeam "Meta"]
[BlackTeam "Antioquia"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. Nf3 g6 2. c4 Bg7 3. g3 Nf6 4. Bg2 0-0 5. 0-0 d5 6. cxd5 Nxd5 7. Nc3 Nc6 8. Qb3 Nb6 9. h3 e5 10. d3 Be6 11. Qa3 h6 12. Ne4 Re8 13. Nc5 Bc8 14. e4 Bf8 15. Qc3 Qf6 16. Kh2 Rd8 17. b4 Nd7 18. Nxd7 Bxd7 19. a3 a5 20. b5 Nd4 21. Nxd4 exd4 22. Qc4 c6 23. bxc6 Bxc6 24. f4 Rdc8 25. Qa2 Ba4 26. Rf2 Qa6 27. e5 Rc7 28. Bb2 Qxd3 29. e6 Bb3 30. exf7+ Bxf7 31. Bd5 Rd8 32. Bxf7+ Rxf7 33. Re1 b5 34. Re6 Kh7 35. Re8 Rdd7 36. Qe6 Qc4 37. Qg4 h5 38. Qd1 Rd5 39. Rc2 Qa4 40. Qd3 h4 41. Rcc8 hxg3+ 42. Qxg3 Rdf5 43. Re6 R5f6 44. Qh4+ 1-0

[Event "COL-chT"]
[Site "Ibague"]
[Date "2018.10.12"]
[Round "4.3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Zapata, Alonso"]
[Result "0-1"]
[ECO "A55"]
[WhiteElo "2378"]
[BlackElo "2423"]
[PlyCount "100"]
[EventDate "2018.10.11"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]
[WhiteTeam "Antioquia"]
[BlackTeam "Risaralda"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3 c6 6. Be2 Be7 7. 0-0 0-0 8. Qc2 Re8 9. b3 a6 10. Bb2 Bf8 11. Rad1 Qc7 12. Rfe1 b5 13. a3 Bb7 14. dxe5 dxe5 15. b4 c5 16. cxb5 cxb4 17. axb4 Bxb4 18. bxa6 Bxe4 19. Qb3 Reb8 20. Ra1 Bc5 21. Nb5 Qb6 22. Nxe5 Bxf2+ 23. Kh1 Nxe5 24. Bxe5 Bxe1 25. Bxb8 Rxb8 26. a7 Ra8 27. Rxe1 Rxa7 28. Bf1 Re7 29. Qg3 g6 30. h3 Qc5 31. Kh2 Kg7 32. Qd6 Qg5 33. Nc3 Re6 34. Qg3 Qxg3+ 35. Kxg3 Bc6 36. Re2 Rd6 37. Rf2 h5 38. Rb2 Rd4 39. Rb6 h4+ 40. Kf2 Rf4+ 41. Kg1 Bd7 42. Rd6 Be6 43. Ne2 Rb4 44. Nd4 Bd5 45. Nc2 Rb3 46. Nd4 Rb1 47. Ne2 Bc4 48. Rd2 Ne4 49. Rc2 Bxe2 50. Rxe2 Ng3 0-1

[Event "COL-chT"]
[Site "Ibague"]
[Date "2018.10.11"]
[Round "1.2"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Gomez, Samael"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2378"]
[BlackElo "1947"]
[PlyCount "95"]
[EventDate "2018.10.11"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]
[WhiteTeam "Antioquia"]
[BlackTeam "Fuerzas Armadas II"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 c6 7. 0-0 Qc7 8. Bf4 Nh5 9. Be3 e5 10. Qd2 Re8 11. Rad1 Nd7 12. Rfe1 Ndf6 13. d5 c5 14. h3 Nd7 15. Rb1 a5 16. Nb5 Qb8 17. a3 b6 18. b4 axb4 19. axb4 Ba6 20. Nc3 Qc7 21. g3 Nhf6 22. b5 Bb7 23. Nh2 Ra3 24. Ra1 Rea8 25. Rxa3 Rxa3 26. Qb2 Ra7 27. g4 Qb8 28. g5 Ne8 29. Bg4 Nf8 30. Ra1 f6 31. h4 Kf7 32. Kg2 Ke7 33. Nf3 Kd8 34. Na4 Kc7 35. Nh2 Ra8 36. Ra3 Bc8 37. Bd1 f5 38. Bd2 Nd7 39. Qa2 Bb7 40. exf5 gxf5 41. Qb1 e4 42. f3 Ne5 43. Be2 exf3+ 44. Nxf3 Qc8 45. Qe1 Qd8 46. Qb1 Qd7 47. Qa2 f4 48. Nxe5 1-0

[Event "COL-chT"]
[Site "Ibague"]
[Date "2018.10.11"]
[Round "2.2"]
[White "Navia Alvarez, Edwin Adrian"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2092"]
[BlackElo "2378"]
[PlyCount "48"]
[EventDate "2018.10.11"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "COL"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]
[WhiteTeam "Cauca"]
[BlackTeam "Antioquia"]
[WhiteTeamCountry "COL"]
[BlackTeamCountry "COL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f4 Ng4 9. Bd2 exf4 10. Bxf4 Qf6 11. Qd2 Be7 12. 0-0-0 0-0 13. h3 Ne5 14. g4 h6 15. Nd4 g5 16. Be3 Rc8 17. Be2 Nbc6 18. Nf5 Nb4 19. Kb1 a5 20. Nxe7+ Qxe7 21. Qxd6 Qe8 22. Bb5 Bxa2+ 23. Kc1 Qxb5 24. Qd8+ Rxd8 0-1

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.06.03"]
[Round "8"]
[White "Castaneda Jimenez, Jhon David"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2196"]
[BlackElo "2380"]
[PlyCount "104"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nc3 d5 5. Nb5 Na6 6. e3 0-0 7. Be2 Bf5 8. Nh4 Bd7 9. 0-0 c6 10. Nc3 Nc7 11. Nf3 Nh5 12. Be5 f6 13. Bxc7 Qxc7 14. Nd2 e5 15. Bxh5 gxh5 16. Qxh5 Be8 17. Qd1 Bg6 18. Ne2 Bh5 19. Nb3 f5 20. Qd2 f4 21. dxe5 Bxe2 22. Qxe2 Qxe5 23. Nd4 Rae8 24. Nf3 Qe4 25. c3 Bh6 26. Qd1 fxe3 27. fxe3 Bxe3+ 28. Kh1 Re7 29. Qb1 Rfe8 30. Qe1 Qc2 31. Qb1 Qxb1 32. Raxb1 b5 33. g3 a5 34. Kg2 b4 35. Nh4 Bd2 36. cxb4 axb4 37. Nf5 Re2+ 38. Kh3 c5 39. Rf3 c4 40. Rd1 c3 41. bxc3 bxc3 42. Nd4 R2e3 43. Rf5 R8e5 44. Rf6 Rh5+ 45. Kg2 Re4 46. Nb3 Re2+ 47. Rf2 Rxh2+ 48. Kxh2 Rxf2+ 49. Kh3 c2 50. Rh1 d4 51. Kg4 d3 52. a4 Be3 0-1

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.06.02"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Beltran, Carlos Armando"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2380"]
[BlackElo "2144"]
[PlyCount "96"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Ne7 7. Bg5 0-0 8. Qd2 Nbc6 9. Na4 Bc7 10. c4 d6 11. Be2 Qe8 12. Nc3 a6 13. Rd1 f6 14. Be3 f5 15. exf5 Nxf5 16. Ne4 Nxe3 17. Qxe3 d5 18. cxd5 Bf4 19. Qc5 exd5 20. Nc3 Bg4 21. f3 Be3 22. Qxd5+ Be6 23. Qe4 Ba7 24. Rd6 Bf5 25. Qxe8 Raxe8 26. g4 Be6 27. Kd1 Kh8 28. Kc1 Bxb3 29. axb3 Nd4 30. Bd1 Nxf3 31. Kb1 Bb8 32. Rd7 b5 33. h4 b4 34. Nd5 a5 35. Nb6 Ne5 36. Rd5 g6 37. h5 Rd8 38. hxg6 Nxg6 39. Rd7 Rxd7 40. Nxd7 Rd8 41. Nf6 Kg7 42. Nh5+ Kg8 43. Nf6+ Kg7 44. g5 Nf8 45. Bc2 Be5 46. Nxh7 Rd2 47. Re1 Rd5 48. Nxf8 Kxf8 1/2-1/2

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.06.02"]
[Round "6"]
[White "Quinonez Garcia, Santiago"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2179"]
[BlackElo "2380"]
[PlyCount "83"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 0-0 8. 0-0 Nc6 9. Be3 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. b3 Nd7 14. Be3 Nc5 15. Rac1 Qb6 16. Rc2 Rfc8 17. Rb1 Qd8 18. Bf1 h5 19. Qf2 Kh7 20. Nd5 e6 21. Nc3 Qh8 22. Nb5 Be5 23. g3 Bxb5 24. cxb5 Nd7 25. Rd1 Rxc2 26. Qxc2 Rc8 27. Qf2 Nf6 28. Bd4 Bxd4 29. Qxd4 d5 30. exd5 Nxd5 31. Qxh8+ Kxh8 32. Bc4 Nb6 33. Rd6 Nxc4 34. bxc4 Rxc4 35. Rd7 Kg7 36. Rxb7 Rc2 37. Ra7 Rxa2 38. b6 Rb2 39. Rxa5 Rxb6 40. Ra2 h4 41. Kg2 hxg3 42. hxg3 1/2-1/2

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.06.01"]
[Round "4"]
[White "Garavito, Miguel Angel"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D70"]
[WhiteElo "2269"]
[BlackElo "2380"]
[PlyCount "141"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 Qd6 10. Nb5 Qd7 11. Kb1 f5 12. e5 f4 13. Bf2 Rd8 14. Bd3 Bxe5 15. Ne2 Bg7 16. h4 e5 17. h5 g5 18. h6 Bf6 19. g3 Qf7 20. gxf4 exf4 21. Rdg1 Kh8 22. Nxf4 a6 23. Nxc7 Nxd4 24. Nh5 Nxf3 25. Qb4 Nd5 26. Nxd5 Qxd5 27. Rd1 Be6 28. b3 Bf5 29. Nxf6 Bxd3+ 30. Kb2 Qe5+ 31. Qc3 Qxc3+ 32. Kxc3 Rac8+ 33. Kb4 Rc2 34. Bb6 Rd6 35. Rxd3 Rxd3 36. Bc5 Rd8 37. Be7 Rdc8 38. Rd1 R2c7 39. Bd8 Rf7 40. Nh5 Kg8 41. Bf6 Re8 42. Bg7 g4 43. Rd6 Ng5 44. Nf6+ Rxf6 45. Rxf6 Ne6 46. Rf5 Nxg7 47. Rg5 Kh8 48. hxg7+ Kg8 49. Rxg4 Re7 50. Kc5 Rxg7 51. Rd4 h5 52. Kb6 Kh7 53. b4 Kh6 54. Rd1 h4 55. a4 Kh5 56. Rh1 Rh7 57. b5 axb5 58. axb5 Kg4 59. Ka7 h3 60. b6 Kg3 61. Rc1 h2 62. Rc3+ Kf4 63. Rc1 h1Q 64. Rxh1 Rxh1 65. Kxb7 Ke5 66. Kc7 Rh7+ 67. Kc6 Rh6+ 68. Kc7 Kd5 69. b7 Rh7+ 70. Kb6 Rxb7+ 71. Kxb7 1/2-1/2

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.05.31"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Rivera, Ingris"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2380"]
[BlackElo "2216"]
[PlyCount "71"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e5 7. Nb3 Be7 8. Bg5 Nbd7 9. a4 h6 10. Be3 b6 11. g4 Nc5 12. Nxc5 bxc5 13. Rg1 Qb6 14. g5 hxg5 15. hxg5 Ng4 16. Rxg4 Bxg4 17. Qxg4 Qxb2 18. Ra2 Qb4 19. Bd2 Rh1 20. g6 Rh4 21. gxf7+ Kxf7 22. Qf5+ Bf6 23. Ra1 Ra7 24. a5 g6 25. Qf3 Kg7 26. Ra4 Qb8 27. Ra3 Bd8 28. Bc4 Qc8 29. Ne2 Qb7 30. Ng3 Qb1+ 31. Qd1 Qb7 32. Bd5 Qe7 33. Rf3 Qe8 34. Qb1 Re7 35. Bg5 Bxa5+ 36. Kf1 1-0

[Event "COL pre olympic sf3"]
[Site "Dosquebradas"]
[Date "2018.05.30"]
[Round "1"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Ordonez Gonzalez, Gabriel"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2380"]
[BlackElo "1876"]
[PlyCount "77"]
[EventDate "2018.05.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 c6 5. Be3 Nf6 6. h3 b5 7. Bd3 b4 8. Nce2 Ba6 9. Nf3 Qc8 10. 0-0 Nbd7 11. Bf2 0-0 12. Re1 Re8 13. e5 Nd5 14. Ng5 Nf8 15. Ne4 f5 16. exf6 Nxf6 17. Bxa6 Qxa6 18. N2g3 h6 19. f5 Nxe4 20. Rxe4 e5 21. dxe5 Bxe5 22. Qf3 Qb7 23. fxg6 Re6 24. Rf1 Rxg6 25. Qb3+ Qf7 26. Qxf7+ Kxf7 27. Bd4+ Ke6 28. Bxe5 dxe5 29. Ne2 Kd5 30. Rxb4 Ne6 31. Rd1+ Kc5 32. Re4 Rag8 33. Rxe5+ Kb6 34. g3 Ng5 35. Kg2 Rf8 36. Nf4 Rxf4 37. gxf4 Nf7+ 38. Kf3 Nxe5+ 39. fxe5 1-0

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.22"]
[Round "10"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Arenas Vanegas, David"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2339"]
[BlackElo "2449"]
[PlyCount "53"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 c6 6. h3 g6 7. Be3 Bg7 8. d5 c5 9. Be2 0-0 10. g4 a6 11. Nd2 Ne8 12. Rg1 Bf6 13. g5 Be7 14. h4 h5 15. Bxh5 gxh5 16. Qxh5 Ng7 17. Qh6 Re8 18. g6 fxg6 19. Qxg6 Bf6 20. Bg5 Bxg5 21. Rxg5 Qe7 22. 0-0-0 Rf8 23. Rdg1 Rf7 24. Qe6 Kf8 25. Qh6 Nf6 26. Qh8+ Ng8 27. h5 1-0

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.21"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Sanchez, Sebastian Felipe"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2339"]
[BlackElo "2403"]
[PlyCount "47"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. c4 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 Qc8 12. Nc3 Bb7 13. Qe1 Nbd7 14. Rc1 Qd8 15. e4 b4 16. Na4 Bxe4 17. Bxb4 Bd3 18. Ne5 Nxe5 19. Bxe7 Qxe7 20. Bxa8 Rxa8 21. dxe5 Nd5 22. Nc5 Bxf1 23. Qxf1 a5 24. b3 1/2-1/2

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.21"]
[Round "8"]
[White "Quinonez Garcia, Santiago"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2192"]
[BlackElo "2339"]
[PlyCount "70"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. d4 g6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 b6 10. 0-0 Bb7 11. e5 cxd4 12. cxd4 Bd5 13. Qa4 Nc6 14. Be3 Qd7 15. Rfc1 Nxe5 16. Qxd7 Nxd7 17. Rc7 Rfd8 18. Bb5 Nf6 19. Rxe7 Bf8 20. Rc7 Bd6 21. Rcc1 Bxa2 22. Ra1 Bd5 23. Bg5 Kg7 24. Ne5 h6 25. Be3 a5 26. Bc6 Rac8 27. Bxd5 Rxc1+ 28. Rxc1 Nxd5 29. Bxh6+ Kg8 30. Rb1 Nc3 31. Re1 Bxe5 32. dxe5 a4 33. Bg5 Rd5 34. Bf6 Ne4 35. Bd8 Rxd8 0-1

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.20"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Soto, Miguel Angel"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2339"]
[BlackElo "2131"]
[PlyCount "63"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 e5 6. Bxc6 dxc6 7. h3 Ne7 8. d3 h6 9. Be3 b6 10. Nbd2 Be6 11. a3 0-0 12. Nc4 Qc7 13. Qc1 Kh7 14. b4 cxb4 15. axb4 Rae8 16. Qb2 Bxc4 17. dxc4 Nc8 18. c5 f5 19. Ra3 Rf7 20. Rea1 Qe7 21. Ra6 f4 22. Bd2 g5 23. cxb6 axb6 24. Bc3 h5 25. Qa2 Rff8 26. Nh2 Rd8 27. Qc4 Nd6 28. Qe2 Nb5 29. Qxh5+ Kg8 30. Be1 Rd4 31. Nf3 Rxe4 32. Nxg5 1-0

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.19"]
[Round "5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Mateus, Martha"]
[Result "0-1"]
[ECO "D34"]
[WhiteElo "2339"]
[BlackElo "2124"]
[PlyCount "73"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. d4 d5 5. 0-0 e6 6. c4 Be7 7. cxd5 exd5 8. Be3 cxd4 9. Nxd4 0-0 10. Nc3 Bg4 11. h3 Be6 12. Kh2 Ne5 13. Bf4 Ng6 14. Bg5 h6 15. Be3 Ne5 16. Bf4 Ng6 17. e3 Qd7 18. Qd3 Rfd8 19. Rfc1 Ne8 20. Ncb5 Nf8 21. g4 a6 22. Nc7 Rac8 23. Nxd5 Bxd5 24. Rxc8 Qxc8 25. Nf5 Ng6 26. Bxd5 Nf6 27. Nxh6+ Kf8 28. Nxf7 Nxf4 29. exf4 Rxd5 30. Qg6 Qc5 31. Rf1 Qc4 32. Nh8 Qxf4+ 33. Kg1 Kg8 34. Qf7+ Kxh8 35. Qxe7 Nxg4 36. Qh4+ Qh6 37. Qg3 0-1

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.19"]
[Round "4"]
[White "Lora, Joel Fernando"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2172"]
[BlackElo "2339"]
[PlyCount "80"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. c3 d6 4. e4 Nd7 5. Bd3 Ngf6 6. 0-0 0-0 7. Re1 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. f3 Be6 11. Be3 Qe7 12. Qe2 Rfd8 13. Na3 Nd7 14. Bc4 Nb6 15. Bxe6 Qxe6 16. Red1 Rxd1+ 17. Qxd1 Bf8 18. Nc2 Be7 19. b3 a5 20. Qd3 Qc6 21. c4 a4 22. Qc3 axb3 23. axb3 Rxa1+ 24. Qxa1 Nd7 25. Kf2 Nc5 26. Nb4 Qd6 27. Nd5 Bd8 28. Bxc5 Qxc5+ 29. Kf1 c6 30. Qa8 Qd6 31. c5 Qf8 32. Ne3 Kg7 33. Nc4 Qe7 34. Qb8 f6 35. Nd6 b6 36. cxb6 Bxb6 37. Nc8 Qc5 38. Qxb6 Qc1+ 39. Kf2 Qd2+ 40. Kf1 Qd1+ 1/2-1/2

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.18"]
[Round "2"]
[White "Cardozo Munar, Carlos Eduardo"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "2079"]
[BlackElo "2339"]
[PlyCount "56"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 Ne4 4. Bh4 g6 5. Nbd2 Bg7 6. c3 c5 7. e3 Qb6 8. Rb1 Bf5 9. Nxe4 Bxe4 10. Bd3 Bxd3 11. Qxd3 Nc6 12. 0-0 0-0 13. b4 cxb4 14. cxb4 Rfe8 15. Rfc1 e6 16. b5 Na5 17. Ne5 Bxe5 18. dxe5 Nc4 19. Rxc4 dxc4 20. Qe4 Rac8 21. Qf4 c3 22. Bf6 Qc5 23. h3 Red8 24. Rc1 Qa3 25. e4 Rd7 26. Rc2 Rd2 27. Bg5 Rxc2 28. Qf6 Qf8 0-1

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.18"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Franco Valencia, Beatriz Irene"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2339"]
[BlackElo "2201"]
[PlyCount "78"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nd7 3. e4 g6 4. c4 Bg7 5. Nc3 e5 6. Bg5 f6 7. Bh4 Ne7 8. Be2 0-0 9. 0-0 g5 10. Bg3 Ng6 11. Ne1 Kh8 12. Nc2 a5 13. Bg4 Nb6 14. Bxc8 Qxc8 15. c5 exd4 16. cxb6 dxc3 17. bxc7 cxb2 18. Rb1 f5 19. Bxd6 Rf7 20. Qd5 Rd7 21. exf5 Ra6 22. fxg6 Rdxd6 23. Qxg5 Qxc7 24. Rfe1 Ra8 25. Ne3 Rxg6 26. Qb5 Qc6 27. Rxb2 Bxb2 28. Qxb2+ Kg8 29. Rc1 Qb6 30. Qe5 Qe6 31. Qb2 b6 32. Rc7 Rc8 33. Qc2 Rf8 34. h4 Rf7 35. Rc8+ Rf8 36. Rc7 Rf7 37. h5 Rgf6 38. Rc8+ Rf8 39. Rc7 R8f7 1/2-1/2

[Event "COL-ch sf 2nd"]
[Site "Tunja"]
[Date "2018.04.17"]
[Round "1"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Castillo Barajas, Jonhatan"]
[Result "1-0"]
[ECO "D79"]
[WhiteElo "2339"]
[BlackElo "1808"]
[PlyCount "67"]
[EventDate "2018.04.17"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d5 6. c4 c6 7. Nc3 Nbd7 8. cxd5 cxd5 9. Bf4 Nb6 10. Rc1 Nh5 11. Bg5 f6 12. Bd2 Nc4 13. Nxd5 Qxd5 14. Ne5 Qxd4 15. Nxc4 Be6 16. Be3 Qxd1 17. Rfxd1 Rac8 18. Na5 b6 19. Nc6 Rc7 20. Nd4 Rxc1 21. Rxc1 Bf7 22. Rc7 e5 23. Nc6 Bxa2 24. Rxa7 Bc4 25. Bxb6 Bxe2 26. b4 Bb5 27. Bc5 Re8 28. Ne7+ Kh8 29. Bc6 Bxc6 30. Nxc6 Bf8 31. Bxf8 Rxf8 32. b5 Rc8 33. Rd7 Ng7 34. b6 1-0

[Event "Catalunya-chT GpA final"]
[Site "Barcelona"]
[Date "2018.04.14"]
[Round "4.4"]
[White "Narciso Dublan, Marc"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2466"]
[BlackElo "2315"]
[PlyCount "250"]
[EventDate "2018.03.10"]
[EventType "team-tourn"]
[EventRounds "4"]
[EventCountry "ESP"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Barcelona Escola Escacs"]
[BlackTeam "Sant Josep de Badalona"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ESP"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 Qxf3 7. gxf3 dxc6 8. Be3 Bxe3 9. fxe3 Be6 10. Nc3 f6 11. Rg1 g6 12. Ne2 Ne7 13. Nf4 Bf7 14. 0-0-0 Nc8 15. e5 fxe5 16. Nd3 e4 17. fxe4 Nd6 18. e5 Nf5 19. Bh3 Nxe3 20. Rde1 Nd5 21. c4 Ne7 22. e6 Bg8 23. Ne5 a5 24. Rgf1 a4 25. Nd7 Nf5 26. Bxf5 gxf5 27. Rxf5 Ke7 28. Rg5 b6 29. Rg7+ Kd6 30. c5+ bxc5 31. Nb6 Bxe6 32. Nxa8 Rxa8 33. Rxh7 Bxa2 34. Rh6+ Kd5 35. Rh5+ Kd6 36. Rh6+ Kd5 37. Rg1 Bb3 38. Kd2 Kc4 39. Rh4+ Kb5 40. Rf4 Bd5 41. Rg3 c4 42. h4 Rh8 43. Kc3 Ra8 44. Kd4 Rd8 45. Rf2 Kb4 46. Ke5 Re8+ 47. Kf4 Rf8+ 48. Ke3 Re8+ 49. Kd2 Be4 50. h5 Bd3 51. Rg7 Rc8 52. Rff7 Rh8 53. Rg5 Re8 54. Rg2 Rd8 55. Ke3 Rh8 56. Rh2 Bg6 57. Rxc7 Rxh5 58. Rxh5 Bxh5 59. Kd4 a3 60. Rb7+ Ka4 61. bxa3 Kxa3 62. Kc3 Ka2 63. Ra7+ Kb1 64. Rh7 Bg6 65. Rh2 Ka1 66. Kxc4 Bb1 67. Kc3 Ba2 68. Kd2 c5 69. Rh7 c4 70. Rh5 c3+ 71. Kxc3 Bb1 72. Rg5 Ba2 73. Rg8 Bb1 74. Rg1 Ka2 75. Rg7 Ka1 76. Kb3 Ba2+ 77. Ka3 Bb1 78. Re7 Ba2 79. Re2 Bb1 80. Kb3 Bf5 81. Ra2+ Kb1 82. Rf2 Be6+ 83. Ka3 Kc1 84. Rf4 Kc2 85. Rf6 Bg8 86. Rf1 Bd5 87. Re1 Bf7 88. Re5 Bg6 89. Kb4 Kb1 90. Kb3 Kc1 91. Kc3 Kb1 92. Kb3 Ka1 93. Ra5+ Kb1 94. Rg5 Bf7+ 95. Ka3 Bc4 96. Kb4 Be6 97. Re5 Bf7 98. Kc3 Bg6 99. Re6 Bf5 100. Rb6+ Ka1 101. Rf6 Be4 102. Rf4 Bb1 103. Ra4+ Ba2 104. Ra6 Kb1 105. Rb6+ Ka1 106. Kc2 Bd5 107. Rb1+ Ka2 108. Rb5 Be4+ 109. Kc3 Ka1 110. Ra5+ Kb1 111. Ra4 Bg6 112. Ra5 Bf7 113. Ra6 Bd5 114. Rd6 Bf7 115. Ra6 Bd5 116. Rd6 Bf7 117. Rd1+ Ka2 118. Rf1 Bg6 119. Rf2+ Ka1 120. Kb3 Bb1 121. Re2 Bg6 122. Ra2+ Kb1 123. Ra7 Bc2+ 124. Kc3 Bf5 125. Ra4 Bg6 1/2-1/2

[Event "Catalunya-chT GpA final"]
[Site "Barcelona"]
[Date "2018.04.07"]
[Round "3.4"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Gonzalez Verges, Alex"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2315"]
[BlackElo "2216"]
[PlyCount "71"]
[EventDate "2018.03.10"]
[EventType "team-tourn"]
[EventRounds "4"]
[EventCountry "ESP"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]
[WhiteTeam "Sant Josep de Badalona"]
[BlackTeam "Tres Peons"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ESP"]

1. d4 Nf6 2. c4 g6 3. f3 d6 4. Nc3 c6 5. e4 Nbd7 6. Nge2 a6 7. a4 e5 8. d5 a5 9. Be3 Nc5 10. Nc1 Na6 11. Qd2 Nb4 12. dxc6 bxc6 13. Nb3 Be6 14. Rd1 Qc7 15. Be2 Rd8 16. 0-0 Bg7 17. Rc1 0-0 18. Nd5 Bxd5 19. cxd5 c5 20. Nxc5 dxc5 21. Rxc5 Qa7 22. Rfc1 Qa8 23. Bb5 Rc8 24. d6 Rxc5 25. Rxc5 Rd8 26. Rc7 Bf8 27. d7 Qb8 28. Qc3 Nfd5 29. exd5 Nxd5 30. Rc8 Nxc3 31. Rxb8 Rxb8 32. bxc3 Be7 33. c4 f6 34. c5 Kf8 35. c6 Bd6 36. Bb6 1-0

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.19"]
[Round "10"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Morales, Jhon Alexander"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2315"]
[BlackElo "2393"]
[PlyCount "79"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 g6 6. 0-0 Bg7 7. Nc3 0-0 8. d5 d6 9. e4 Nbd7 10. Re1 Re8 11. Qc2 Nc5 12. Rb1 a5 13. Bf4 Qd7 14. Bh3 Qe7 15. Rbd1 Rad8 16. a3 e5 17. Bc1 Na6 18. Qb1 h6 19. b4 axb4 20. axb4 Nh7 21. Bf1 Ng5 22. Nxg5 hxg5 23. Bd3 g4 24. Re2 Ra8 25. Bc2 Rf8 26. Be3 Bc8 27. Ba4 Nb8 28. c5 bxc5 29. bxc5 Ba6 30. Bb5 dxc5 31. Ra2 Bb7 32. Na4 Na6 33. Bxa6 Bxa6 34. Bxc5 Qd8 35. Bxf8 Bxf8 36. Rc1 Rb8 37. Rb2 Ra8 38. Nc5 Bxc5 39. Rxc5 Kg7 40. Ra5 1-0

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.18"]
[Round "8"]
[White "Becerra, Juan David"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2336"]
[BlackElo "2315"]
[PlyCount "46"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. Qd2 c6 5. 0-0-0 Bg7 6. f3 b5 7. g4 Nbd7 8. Qe1 Nb6 9. Be5 Nc4 10. g5 Nxe5 11. dxe5 Nh5 12. e4 e6 13. f4 Nxf4 14. Nf3 0-0 15. Qe3 Nh5 16. Bh3 Qb6 17. Qe1 Nf4 18. Bg4 Ng2 19. Qg3 Ne3 20. Rde1 Nc4 21. h4 Qa5 22. a3 b4 23. Na2 Rb8 0-1

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.18"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Sanchez, Sebastian Felipe"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2315"]
[BlackElo "2399"]
[PlyCount "60"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qb3 d5 6. cxd5 Qxd5 7. Qxd5 exd5 8. Bf4 c6 9. Nc3 Be7 10. Rc1 0-0 11. e3 Bxf1 12. Kxf1 Rc8 13. g4 Nbd7 14. h3 b5 15. Ne5 Nxe5 16. Bxe5 Nd7 17. a4 Nxe5 18. dxe5 bxa4 19. Nxa4 Rab8 20. Kg2 Rb4 21. Ra1 d4 22. exd4 Rxd4 23. Rhd1 Re4 24. Nc3 Rxe5 25. Rxa7 Bb4 26. Rdd7 Bxc3 27. Rac7 Rf8 28. bxc3 Rc5 29. Rd3 h5 30. gxh5 Kh7 1/2-1/2

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.17"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Mosquera Klinger, Miguel Alonso"]
[Result "1/2-1/2"]
[ECO "D73"]
[WhiteElo "2315"]
[BlackElo "2377"]
[PlyCount "71"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g6 5. Qb3 Bg7 6. g3 0-0 7. Bg2 Qb6 8. Qxb6 axb6 9. cxd5 Nxd5 10. Nxd5 cxd5 11. Bf4 Nc6 12. e3 Nb4 13. Kd2 Bf5 14. Ne1 e5 15. Bxe5 Bxe5 16. dxe5 Nxa2 17. Nd3 Be4 18. f3 Bxd3 19. Kxd3 Rfc8 20. Kd2 Ra5 21. Rhb1 Rca8 22. Rd1 Rb5 23. b4 Rxb4 24. Rdb1 Ra5 25. f4 Kf8 26. Bf1 d4 27. exd4 Rxd4+ 28. Ke3 Rb4 29. Bg2 Ra3+ 30. Kf2 Rxb1 31. Rxb1 Nc3 32. Rxb6 Ra2+ 33. Kf3 Nd1 34. g4 Ra3+ 35. Ke2 Ra2+ 36. Kf3 1/2-1/2

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.17"]
[Round "6"]
[White "Valderrama Quiceno, Esteban Alberto"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D76"]
[WhiteElo "2433"]
[BlackElo "2315"]
[PlyCount "88"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[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. d5 Bxc3 10. dxc6 Bg7 11. Qc2 bxc6 12. Rd1 Bf5 13. Qb3 Qe8 14. Nd4 Bd7 15. Qc2 Nd5 16. e4 Nb6 17. Be3 e5 18. Nb3 Qc8 19. Na5 Re8 20. b4 Bf8 21. Bc5 Bh6 22. Rd3 Bh3 23. Nxc6 Bxg2 24. Kxg2 Qb7 25. Be3 Bxe3 26. Rxe3 Nc8 27. Qc5 Nd6 28. Rc1 Re6 29. a3 a6 30. Na5 Qb5 31. Qd5 Rc8 32. Rc5 Qe8 33. Nc6 Nb5 34. a4 Nd4 35. Rec3 Rd6 36. Qc4 Nxc6 37. Rxc6 Rxc6 38. Qxc6 Qxc6 39. Rxc6 Rb8 40. Rc4 Kf8 41. Kf3 Ke8 42. Ke3 Kd7 43. f4 exf4+ 44. Kxf4 h6 1/2-1/2

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.16"]
[Round "4"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Panesso Rivera, Henry"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2315"]
[BlackElo "2410"]
[PlyCount "19"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. h3 Ne7 10. Nc3 1/2-1/2

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.16"]
[Round "5"]
[White "Herrera, Juan Sebastian"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2292"]
[BlackElo "2315"]
[PlyCount "71"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 0-0 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 e6 13. f4 Bc7 14. 0-0 exd5 15. exd5 Ba5 16. Rb5 a6 17. Rxa5 Qxa5 18. f5 Re8 19. Qf4 Bxf5 20. Bd3 Qxc3 21. Bxf5 Re1 22. Bg4 Rxf1+ 23. Kxf1 Re8 24. Be2 Re5 25. g4 Rxd5 26. Qb8+ Kg7 27. Bf4 b5 28. h4 Qh3+ 29. Kg1 Qxh4 30. Be5+ Rxe5 31. Qxe5+ Qf6 32. Qxc5 Qa1+ 33. Kf2 Qxa2 34. Qe5+ Kg8 35. Qe8+ Kg7 36. Qe5+ 1/2-1/2

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.15"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Ojeda, Jesus David"]
[Result "1-0"]
[ECO "C32"]
[WhiteElo "2315"]
[BlackElo "2111"]
[PlyCount "65"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Be3 Be7 7. Bb5+ c6 8. Bc4 Qa5+ 9. c3 0-0 10. dxc6 Rd8 11. Qc2 Nf6 12. cxb7 Bxb7 13. Nf3 Ng4 14. Qe2 Re8 15. Ne5 Bh4+ 16. Kd1 Nxe5 17. fxe5 Qd8+ 18. Nd2 Nc6 19. e6 fxe6 20. Qh5 Na5 21. Bb5 Rf8 22. Rf1 Rxf1+ 23. Bxf1 Nc6 24. Kc2 Bf6 25. Bc4 Ne5 26. Bxe6+ Kh8 27. Bd4 Qd6 28. Re1 Qxe6 29. Bxe5 Bxe5 30. Rxe5 Qd7 31. Qf5 Qa4+ 32. Nb3 Qxa2 33. Ra5 1-0

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.15"]
[Round "2"]
[White "Lora, Joel Fernando"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2184"]
[BlackElo "2315"]
[PlyCount "88"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. c3 d6 4. e4 Nf6 5. Bd3 0-0 6. h3 c5 7. dxc5 dxc5 8. Qe2 Nc6 9. Be3 b6 10. Na3 a6 11. Bf4 b5 12. Rd1 Qa5 13. 0-0 Be6 14. Ng5 Bxa2 15. Ra1 Nh5 16. Be3 c4 17. Nxc4 bxc4 18. Bb1 Bxb1 19. Rxa5 Bd3 20. Qd1 Nxa5 21. Re1 Nb3 22. g4 Nf6 23. e5 Nd5 24. e6 f5 25. Nf7 Nxe3 26. Rxe3 Nc5 27. gxf5 Bxf5 28. Qd5 Nd3 29. Qxc4 Nxb2 30. Qb4 Nd1 31. Re1 Nxc3 32. Qxe7 Bxe6 33. Ng5 Rae8 34. Qb4 Bd5 35. Re7 Ne2+ 36. Kf1 Ng3+ 37. Kg1 Nf5 38. Rd7 Rb8 39. Qe1 Rfe8 40. Qd1 Bb3 41. Qd3 Re1+ 42. Kg2 Nh4+ 43. Kg3 Rg1+ 44. Kf4 Ng2+ 0-1

[Event "COL-ch sf"]
[Site "Medellin"]
[Date "2018.03.14"]
[Round "1"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Nieto Medina, Agustin"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2315"]
[BlackElo "2066"]
[PlyCount "47"]
[EventDate "2018.03.14"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "COL"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. cxd4 Bg7 8. Nc3 Qd6 9. 0-0 a6 10. Ne5 Nc6 11. Nc4 Qd8 12. d5 Na5 13. Qa4+ b5 14. Qxa5 bxc4 15. Qxd8+ Kxd8 16. Bxc4 Rb8 17. Re1 Ne8 18. Bg5 f6 19. Bf4 Rxb2 20. Bb3 f5 21. Rac1 Bxc3 22. Rxc3 Bd7 23. Rce3 Nd6 24. Be5 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.28"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Stukan, Martin"]
[Result "1-0"]
[ECO "D80"]
[WhiteElo "2343"]
[BlackElo "2210"]
[PlyCount "41"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Bh4 Nxc3 6. bxc3 dxc4 7. e3 Bg7 8. Bxc4 0-0 9. Nf3 c5 10. 0-0 Nc6 11. Rc1 Bf5 12. Qe2 Rc8 13. Rfd1 cxd4 14. cxd4 Qc7 15. h3 Be4 16. Ng5 Bf5 17. Qf3 e6 18. g4 h6 19. gxf5 hxg5 20. Bg3 e5 21. fxg6 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.27"]
[Round "8"]
[White "Kulkarni, Chinmay"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B70"]
[WhiteElo "2215"]
[BlackElo "2343"]
[PlyCount "71"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. h3 Bg7 7. g4 Nc6 8. Nde2 Rb8 9. Bg2 b5 10. 0-0 b4 11. Nd5 Nd7 12. Be3 0-0 13. Nd4 Nde5 14. f4 Nxd4 15. Bxd4 Nc6 16. Bxg7 Kxg7 17. Qd2 Be6 18. c4 Bxd5 19. exd5 Qb6+ 20. Kh1 Qd4 21. Qe2 Na5 22. b3 Rfe8 23. Rad1 Qf6 24. g5 Qf5 25. Rd3 Nb7 26. h4 e5 27. Re3 Qd7 28. Bh3 Qc7 29. Re1 Nc5 30. fxe5 dxe5 31. Rxe5 Nd3 32. Qxd3 Rxe5 33. Qd4 Rbe8 34. Be6 R8xe6 35. dxe6 f6 36. gxf6+ 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.26"]
[Round "7"]
[White "Paramzina, Anastasya"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2231"]
[BlackElo "2343"]
[PlyCount "73"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nf6 7. Qe2 d6 8. c4 g6 9. Nc3 Bg7 10. Be3 0-0 11. Rac1 Nc6 12. Rfd1 Bd7 13. Kh1 Rac8 14. b3 Ne5 15. f3 Qa5 16. Bb1 Rfe8 17. Qd2 h5 18. Nde2 Rc6 19. Nd4 Rcc8 20. Nde2 Rc6 21. h3 b5 22. f4 b4 23. Na4 Nxc4 24. bxc4 Qxa4 25. e5 Nh7 26. Be4 d5 27. cxd5 exd5 28. Bxd5 Rxc1 29. Rxc1 Nf8 30. Rc5 Qa3 31. Nd4 Ne6 32. Nxe6 Rxe6 33. Bb3 Bb5 34. Rc8+ Kh7 35. Bc5 Rc6 36. Rxc6 Bxc6 37. Bxb4 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.25"]
[Round "6"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Baghdasaryan, Vahe"]
[Result "0-1"]
[ECO "D44"]
[WhiteElo "2343"]
[BlackElo "2436"]
[PlyCount "69"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. a4 c5 7. e3 cxd4 8. exd4 Be7 9. Bxc4 0-0 10. 0-0 Nc6 11. Re1 b6 12. Qd2 Bb7 13. Rad1 Rc8 14. Qe2 Nb4 15. Ne5 Nfd5 16. Bc1 Nxc3 17. bxc3 Nd5 18. Rd3 f6 19. Rh3 fxe5 20. Bd3 Bh4 21. g3 Nxc3 22. Qh5 h6 23. Qg6 Qd5 24. Qh7+ Kf7 25. Bg6+ Ke7 26. Qxg7+ Kd8 27. Qxf8+ Kd7 28. Qg7+ Be7 29. Be4 Nxe4 30. Qxe5 Bb4 31. Qg7+ Kc6 32. Re2 Ba6 33. Rc2+ Nc3 34. Rxh6 Bd3 35. Rb2 0-1

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.24"]
[Round "5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Praveen, Kumar C"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2343"]
[BlackElo "2228"]
[PlyCount "79"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 Nf6 3. Nc3 c5 4. e4 d6 5. d4 cxd4 6. Nxd4 a6 7. Be2 b6 8. 0-0 Bb7 9. f3 Qc7 10. Be3 Be7 11. Qd2 Nbd7 12. Rac1 0-0 13. Rfd1 Rac8 14. Bf1 Qb8 15. b3 Rfe8 16. Nde2 Bf8 17. Nf4 Bc6 18. Nd3 Ne5 19. Nb4 Bb7 20. Na4 Nfd7 21. h3 Ng6 22. Qf2 d5 23. cxd5 Rxc1 24. Bxc1 Bxb4 25. dxe6 Rxe6 26. Rxd7 Bc6 27. Rd4 Bf8 28. Be3 Re8 29. Bxa6 Bd6 30. Qc2 Bxa4 31. Rxa4 Bf4 32. Bf2 b5 33. Ra5 Qd8 34. Rxb5 Qf6 35. Rb6 Qa1+ 36. Bf1 Rd8 37. g3 Rd1 38. Qc4 Rc1 39. Qb5 Be5 40. Rc6 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.23"]
[Round "4"]
[White "Semjonovs, Ilja"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2233"]
[BlackElo "2343"]
[PlyCount "82"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Bb4 6. Bd3 Qc7 7. Bd2 Nf6 8. 0-0 Bc5 9. Be3 d6 10. Qf3 0-0 11. Qg3 b5 12. a3 Nbd7 13. Kh1 Bb7 14. Rae1 Rac8 15. f4 Rfe8 16. Bg1 g6 17. f5 Qb6 18. fxe6 fxe6 19. e5 dxe5 20. Bxg6 Re7 21. Nxe6 Bxg1 22. Ne4 Bxe4 23. Bxe4+ Kh8 24. Ng5 Bc5 25. Qh4 Rg8 26. b4 Be3 27. Nxh7 Rxh7 28. Bxh7 Nxh7 29. Qh3 Bf4 30. Qxd7 Qh6 31. h3 Qg6 32. Qg4 Qxg4 33. hxg4 Rxg4 34. Rf3 Ng5 35. Rd3 Kg7 36. Rd6 Bg3 37. Re2 Ne4 38. Rxa6 Rh4+ 39. Kg1 Bh2+ 40. Kf1 Rf4+ 41. Ke1 Bg3+ 0-1

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.22"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Doshi, Moksh Amitbhai"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2343"]
[BlackElo "2221"]
[PlyCount "64"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. e3 c5 6. Nc3 Be7 7. dxc5 bxc5 8. e4 d6 9. e5 dxe5 10. Qa4+ Nfd7 11. Nxe5 0-0 12. Nxd7 Qxd7 13. Be3 Qxa4 14. Nxa4 Nd7 15. b3 Rab8 16. 0-0-0 Rfd8 17. Kc2 Bb7 18. f3 Bc6 19. Nc3 f5 20. Be2 a6 21. Rd2 Kf7 22. Rhd1 g5 23. h3 Rb7 24. f4 h6 25. g4 Rdb8 26. gxf5 exf5 27. Bh5+ Kg7 28. Rg1 Nf6 29. Bd1 Rxb3 30. fxg5 Ne4 31. gxh6+ Kh8 32. Rd3 Nxc3 0-1

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.21"]
[Round "2"]
[White "Flom, Gabriel"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2485"]
[BlackElo "2343"]
[PlyCount "63"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. h4 c5 4. d5 Qb6 5. Nd2 Nxd2 6. Bxd2 e5 7. e4 Be7 8. Bc3 d6 9. Nf3 Na6 10. Nd2 Qd8 11. g3 Nc7 12. a4 0-0 13. Nc4 f5 14. exf5 Bxf5 15. Bg2 Ne8 16. Ne3 Bd7 17. 0-0 Qc8 18. Qd3 Kh8 19. b3 Bh3 20. a5 Nf6 21. f4 e4 22. Qe2 Bd7 23. f5 b5 24. g4 Ne8 25. g5 b4 26. Bb2 Bxf5 27. Nxf5 Rxf5 28. Rxf5 Qxf5 29. Rf1 Qxd5 30. Bxe4 Qe6 31. Qf3 Rd8 32. Bd5 1-0

[Event "Moscow Aeroflot op-B 17th"]
[Site "Moscow"]
[Date "2018.02.20"]
[Round "1"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Kunte, Abhijit"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2343"]
[BlackElo "2499"]
[PlyCount "34"]
[EventDate "2018.02.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. e3 b6 6. Bd3 Bb7 7. 0-0 0-0 8. Nc3 d6 9. Qe2 Bxc3 10. Bxc3 Ne4 11. Bxe4 Bxe4 12. Nd2 Bg6 13. e4 c5 14. Rfd1 Qe7 15. Nf3 Rd8 16. h3 Nc6 17. Qe3 e5 1/2-1/2

[Event "Catalunya-chT Gp2"]
[Site "Barcelona"]
[Date "2018.02.17"]
[Round "5.5"]
[White "Escandell, Juan C"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2221"]
[BlackElo "2343"]
[PlyCount "68"]
[EventDate "2018.01.20"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Cerdanyola Valles"]
[BlackTeam "Sant Josep de Badalona"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ESP"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Bb4 6. Bd3 d6 7. 0-0 Nf6 8. Qe2 Nbd7 9. Bd2 Bc5 10. Nb3 Ba7 11. Kh1 b5 12. a4 b4 13. Nd1 a5 14. c3 Nc5 15. Bb5+ Bd7 16. Nxc5 Bxc5 17. f3 Qb6 18. cxb4 axb4 19. Bxd7+ Nxd7 20. Ne3 0-0 21. b3 Rfc8 22. Rac1 Ra7 23. Nc4 Qa6 24. Qd3 Rc6 25. Bf4 Nf6 26. Rfd1 h6 27. Nxd6 Nh5 28. Be5 Qxd3 29. Rxd3 Rd7 30. g4 f6 31. Bg3 Nxg3+ 32. hxg3 Rcxd6 33. Rxd6 Bxd6 34. Rc8+ Kf7 0-1

[Event "Catalunya-chT Gp2"]
[Site "Barcelona"]
[Date "2018.02.10"]
[Round "4.5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Obon Temprano, Sergi"]
[Result "1-0"]
[ECO "D49"]
[WhiteElo "2343"]
[BlackElo "2252"]
[PlyCount "53"]
[EventDate "2018.01.20"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Sant Josep de Badalona"]
[BlackTeam "Barbera"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ESP"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 axb5 12. exf6 gxf6 13. 0-0 Qb6 14. Qe2 Bb7 15. Bxb5 Bd6 16. Nxd4 Qxd4 17. Rd1 Qb6 18. Be3 Qc7 19. Rac1 Bxh2+ 20. Kh1 Bd5 21. Rxc7 Bxc7 22. Rxd5 exd5 23. Bc5+ Be5 24. f4 0-0-0 25. Bxd7+ Rxd7 26. fxe5 d4 27. Qa6+ 1-0

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.02.04"]
[Round "9"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Navrodsky, Boris"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2343"]
[BlackElo "2101"]
[PlyCount "123"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. g3 0-0 6. Bg2 Nbd7 7. cxd5 exd5 8. 0-0 c6 9. a3 Re8 10. b4 a6 11. Qb3 Bd6 12. a4 Nb6 13. Nd2 Be6 14. Rb1 Bf5 15. Rb2 Be6 16. Qd1 Qd7 17. a5 Nc8 18. Na4 Qe7 19. Nc5 Bg4 20. Nf3 Ne4 21. Qc2 Na7 22. Nxe4 dxe4 23. Ng5 Bf5 24. f3 h6 25. Nxf7 exf3 26. Qxf5 fxg2 27. Kxg2 Rf8 28. Nxh6+ gxh6 29. Qg6+ Kh8 30. Qxh6+ Kg8 31. Qg6+ Kh8 32. Bg5 Qg7 33. Bf6 Rxf6 34. Rxf6 Qxg6 35. Rxg6 Nb5 36. e3 Re8 37. Kf3 Kh7 38. Rg4 Nc3 39. e4 Rf8+ 40. Kg2 Nd1 41. Rb3 Nf2 42. Rh4+ Kg6 43. e5 Be7 44. Rf4 Rxf4 45. gxf4 Ne4 46. Rh3 Kf5 47. Rh7 Bxb4 48. Rf7+ Ke6 49. Rxb7 Bc3 50. Kf3 Nd2+ 51. Ke3 Bxa5 52. Ra7 Kd5 53. Rd7+ Ke6 54. Rd6+ Ke7 55. Rxc6 Nf1+ 56. Ke4 Nxh2 57. Rxa6 Bd2 58. Ra7+ Kd8 59. f5 Ng4 60. f6 Bb4 61. Kf5 Nf2 62. e6 1-0

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.02.03"]
[Round "8"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Suleymanli, Aydin Elshan"]
[Result "1/2-1/2"]
[ECO "D23"]
[WhiteElo "2343"]
[BlackElo "2259"]
[PlyCount "171"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 dxc4 5. Qxc4 Bg4 6. Ne5 Be6 7. Qd3 g6 8. Nc3 Bg7 9. g3 0-0 10. Bg2 Nbd7 11. Nf3 Bf5 12. Qd1 Nd5 13. 0-0 Nxc3 14. bxc3 Be4 15. Qb3 b5 16. a4 a6 17. Ba3 Nb6 18. axb5 axb5 19. Bc5 Rxa1 20. Rxa1 Na4 21. Bb4 Re8 22. Ne5 Bd5 23. Bxd5 cxd5 24. Nd3 e6 25. Nc5 Nxc5 26. Bxc5 Qd7 27. Ra5 Rb8 28. Qb4 h6 29. Qa3 Bf8 30. Ra8 Qc8 31. Rxb8 Qxb8 32. Qa6 Kg7 33. Qc6 Kg8 34. Kf1 Bg7 35. Bd6 Qd8 36. Bc5 Qb8 37. Bb6 Bf8 38. Qxb5 Qb7 39. Qa5 Qc6 40. Bc5 Bg7 41. Kg1 h5 42. h4 Qe8 43. Qa6 Qb8 44. Qb6 Qa8 45. Qa7 Qc6 46. Qb8+ Kh7 47. Qb1 Kg8 48. Kg2 Kh7 49. Qb6 Qe8 50. Qa7 Kg8 51. Qb7 Bh6 52. e4 dxe4 53. Qxe4 Qb5 54. Qa8+ Kh7 55. Qf3 Kg8 56. Be7 Bg7 57. Bc5 Qc4 58. Qa8+ Kh7 59. Qb7 Qxc3 60. Qxf7 Qc4 61. Qb7 Kg8 62. Qa8+ Kh7 63. Qb7 Kg8 64. Qe4 Kh7 65. g4 hxg4 66. Kg3 Qd5 67. Qxd5 exd5 68. Kxg4 Bf6 69. Ba7 Kg7 70. h5 gxh5+ 71. Kxh5 Kf7 72. Bc5 Bg7 73. Kg5 Bf6+ 74. Kf5 Bg7 75. Kf4 Kg6 76. Ke3 Kf5 77. Bd6 Bh6+ 78. Kd3 Bg5 79. Be5 Kg4 80. Ke2 Bh6 81. f3+ Kf5 82. Kd3 Bg5 83. Kc3 Be3 84. Bg3 Bc1 85. Kb4 Be3 86. Kc5 1/2-1/2

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.02.02"]
[Round "7"]
[White "Marchuk, Rostislav"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D91"]
[WhiteElo "2143"]
[BlackElo "2343"]
[PlyCount "60"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Bg5 Ne4 6. Bh4 Nxc3 7. bxc3 dxc4 8. e3 Be6 9. Qb1 Qd5 10. Nd2 b6 11. Be2 Qd7 12. 0-0 0-0 13. Nxc4 c5 14. Rd1 cxd4 15. cxd4 Bd5 16. Qb2 Nc6 17. Rac1 Rac8 18. Nd2 e5 19. Ba6 exd4 20. Bxc8 Rxc8 21. e4 Be6 22. Nb3 Bh6 23. Rb1 d3 24. Qc3 d2 25. Nxd2 Nd4 26. Qd3 Rc3 27. Qa6 Bxd2 28. Rxd2 Nf3+ 29. gxf3 Qxd2 30. Bg3 Bh3 0-1

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.02.01"]
[Round "6"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Chibukhchyan, Erik"]
[Result "1/2-1/2"]
[ECO "C92"]
[WhiteElo "2343"]
[BlackElo "2121"]
[PlyCount "98"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[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 a5 10. d3 a4 11. Bc2 Bd7 12. Nbd2 Re8 13. d4 Bf8 14. d5 Na5 15. b4 axb3 16. axb3 c6 17. b4 Nb7 18. Rxa8 Qxa8 19. dxc6 Bxc6 20. Nf1 g6 21. Bg5 Bg7 22. Bxf6 Bxf6 23. Ne3 Rc8 24. Bb3 Qa3 25. Nd5 Bd8 26. Re2 Qa7 27. Ra2 Qb8 28. h4 h5 29. Ra6 Be8 30. Ng5 Rc6 31. Ra2 Kg7 32. Qa1 Rc8 33. Ra7 Bc6 34. Nxf7 Kxf7 35. Nb6+ Kf6 36. Nxc8 Qxc8 37. Bd5 Bxd5 38. exd5 Bb6 39. Ra6 Bd8 40. Rc6 Qd7 41. Qa6 Be7 42. Qxb5 Nd8 43. Qb6 Nf7 44. Rc7 Qg4 45. Qb7 Qd1+ 46. Kh2 Nh6 47. Rxe7 Qg4 48. Re6+ Kf5 49. Qg7 Qf4+ 1/2-1/2

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.01.31"]
[Round "5"]
[White "Ganerdene, Sugar"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2196"]
[BlackElo "2343"]
[PlyCount "75"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 Nf6 6. Nc3 Bb4 7. 0-0 d6 8. Qd3 Nbd7 9. Nb3 0-0 10. Bf4 Bxc3 11. bxc3 Ne5 12. Qd4 Nc6 13. Qe3 Qe7 14. Bg5 Bd7 15. Rad1 Rfd8 16. Bxf6 Qxf6 17. Rxd6 Be8 18. Rxd8 Rxd8 19. f4 e5 20. f5 h6 21. a4 Ne7 22. a5 Rc8 23. Rd1 Qc6 24. c4 f6 25. Rb1 Bf7 26. Nd2 Rd8 27. Bd3 Rd7 28. Qb6 Qa4 29. Nb3 Qa2 30. Nc5 Nc8 31. Qb4 Rc7 32. Na4 Rxc4 33. Bxc4 Qxc4 34. Qxc4 Bxc4 35. Rxb7 Nd6 36. Rc7 Bf7 37. Nc5 Nc4 38. Ne6 1-0

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.01.30"]
[Round "4"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Sorokin, Aleksey"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2343"]
[BlackElo "2511"]
[PlyCount "100"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 Ne4 8. Bd2 Bf6 9. Nxe4 Bxe4 10. Bc3 d6 11. Nd2 Bxg2 12. Kxg2 Nd7 13. Rc1 g6 14. b4 Bg7 15. e3 c5 16. Qf3 Qe7 17. Rfd1 cxd4 18. Bxd4 Ne5 19. Qe2 Qb7+ 20. Nf3 Rfd8 21. Bxe5 Bxe5 22. e4 Bg7 23. Qe3 Rac8 24. Qf4 Rd7 25. Rxd6 Rxd6 26. Qxd6 Bf8 27. Qf4 Bxb4 28. h4 Bf8 29. h5 Qe7 30. e5 Rd8 31. Rh1 Bg7 32. hxg6 fxg6 33. Qg4 Re8 34. Rd1 Qf7 35. Qe4 Qc7 36. Rd6 Bf8 37. Rc6 Qb7 38. Nd4 Bc5 39. Nb5 Rf8 40. f4 a6 41. Nd6 Qd7 42. a4 a5 43. Kh3 Rd8 44. Kg4 Qg7 45. Qh1 g5 46. f5 Qxe5 47. Rc7 h5+ 48. Qxh5 Qe2+ 49. Kxg5 Qxh5+ 50. Kxh5 Bxd6 0-1

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.01.29"]
[Round "3"]
[White "Makoveev, Ilya"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "2196"]
[BlackElo "2343"]
[PlyCount "117"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. 0-0 Nbc6 7. Nf3 Ng6 8. Be3 Be7 9. Nbd2 d6 10. a4 Rb8 11. c3 0-0 12. Qe2 Bd7 13. Rfd1 Qc7 14. Nc4 Nce5 15. Bb6 Qc6 16. Nfxe5 Nxe5 17. Nxe5 dxe5 18. Qe3 h6 19. a5 Bd8 20. Bc5 Bg5 21. f4 Bxf4 22. Qf2 Rfc8 23. b4 Bg5 24. Bc2 Be8 25. h4 Bf6 26. Rd6 Qc7 27. Rd3 Be7 28. Ba7 Ra8 29. Bb6 Qc4 30. Rf1 Qxe4 31. Rd7 Qxh4 32. g3 Qf6 33. Qe1 Bxd7 34. Rxf6 Bxf6 35. Qe4 g6 36. Qe3 Kg7 37. Kf2 Bc6 38. c4 Bd5 39. c5 h5 40. Ba4 h4 41. gxh4 Bxh4+ 42. Ke2 Bf6 43. Kd2 Rh8 44. Bc7 Rh2+ 45. Kc1 Rh1+ 46. Kd2 Rh5 47. Bd1 Rf5 48. Kc2 Rh8 49. Qg3 Rh4 50. Bg4 Rf4 51. Be2 Re4 52. Kd2 Rd4+ 53. Kc2 Rhe4 54. Qh2 Rxb4 55. Bd6 Ra4 56. Bf8+ Kxf8 57. Qh6+ Bg7 58. Qg5 f6 59. Qxg6 0-1

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.01.28"]
[Round "2"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Zaika, Daniil"]
[Result "1/2-1/2"]
[ECO "B81"]
[WhiteElo "2343"]
[BlackElo "2043"]
[PlyCount "89"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 h6 8. Bg2 g5 9. Be3 Nbd7 10. Qe2 Ne5 11. f4 gxf4 12. Bxf4 Nfd7 13. 0-0-0 b5 14. Nf3 Qc7 15. Nxe5 dxe5 16. Bg3 Bb7 17. Rhf1 Rh7 18. Rf3 b4 19. Na4 Bc6 20. b3 Bxa4 21. bxa4 Nb6 22. Bf1 Be7 23. a3 Nxa4 24. Qc4 Bg5+ 25. Kb1 Qxc4 26. Bxc4 Nc3+ 27. Rxc3 bxc3 28. Rd6 Bd8 29. Bxa6 Rb8+ 30. Kc1 Ba5 31. a4 Ke7 32. Rc6 Rb6 33. Rc7+ Kf6 34. Ra7 Bb4 35. Bb5 Rh8 36. Rc7 Ra8 37. Kd1 Rd6+ 38. Ke1 Rd2 39. Rc4 Rd4 40. Rxd4 exd4 41. e5+ Kg5 42. Kf2 h5 43. h4+ Kxg4 44. Be2+ Kf5 45. Bd3+ 1/2-1/2

[Event "Moscow op-A 14th"]
[Site "Moscow"]
[Date "2018.01.27"]
[Round "1"]
[White "Khmelev, Mikhail"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "B78"]
[WhiteElo "1983"]
[BlackElo "2343"]
[PlyCount "103"]
[EventDate "2018.01.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Qd2 Bd7 10. h4 h5 11. 0-0-0 Rc8 12. Bb3 Ne5 13. g4 hxg4 14. h5 Nxh5 15. Bh6 e6 16. Rdg1 Qf6 17. Bxg7 Qxg7 18. fxg4 Nf6 19. g5 Nh5 20. Nce2 Nc4 21. Bxc4 Rxc4 22. b3 Rxd4 23. Qxd4 Rc8 24. Qxa7 Bc6 25. Qe3 Qe5 26. c3 Qxe4 27. Qxe4 Bxe4 28. Rh4 d5 29. Kd2 Ra8 30. a4 Kg7 31. Ng3 Nxg3 32. Rxg3 f6 33. gxf6+ Kxf6 34. Rh7 b5 35. axb5 Ra3 36. c4 dxc4 37. Re3 Ra2+ 38. Kc3 Rc2+ 39. Kb4 Bd5 40. Rc3 cxb3 41. Rxc2 bxc2 42. Rc7 g5 43. Rxc2 g4 44. Kc5 Ke5 45. b6 g3 46. Re2+ Kf5 47. Kd4 g2 48. Re1 Kf4 49. Rg1 Kf3 50. Rxg2 Kxg2 51. Ke5 Bf3 52. b7 1/2-1/2

[Event "Catalunya-chT Gp2"]
[Site "Barcelona"]
[Date "2018.01.20"]
[Round "1.5"]
[White "Martin Grillo, Ruben"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2215"]
[BlackElo "2343"]
[PlyCount "58"]
[EventDate "2018.01.20"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "ESP"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]
[WhiteTeam "Catalunya"]
[BlackTeam "Sant Josep de Badalona"]
[WhiteTeamCountry "ESP"]
[BlackTeamCountry "ESP"]

1. e4 c5 2. b3 Nf6 3. e5 Nd5 4. Bb2 Nc6 5. Nc3 Nxc3 6. Bxc3 g6 7. e6 f6 8. exd7+ Bxd7 9. Bc4 Qc7 10. Nf3 e5 11. 0-0 0-0-0 12. d3 g5 13. Nd2 f5 14. a3 h5 15. b4 g4 16. Nb3 h4 17. Nxc5 Bxc5 18. bxc5 g3 19. Qf3 gxh2+ 20. Kh1 h3 21. g3 Nd4 22. Qd1 Bc6+ 23. f3 Qg7 24. Bxd4 Qxg3 25. Qe2 Rxd4 26. Be6+ Kd8 27. Bxf5 Rg8 28. Rf2 Qg1+ 29. Rxg1 hxg1Q# 0-1

[Event "Titled Tuesday intern op 2nd Dec"]
[Site "Chess.com INT"]
[Date "2017.12.05"]
[Round "6"]
[White "Sztokbant, Bernardo Vainzoff"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2149"]
[BlackElo "2343"]
[PlyCount "65"]
[EventDate "2017.12.05"]
[EventType "swiss (blitz)"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. d3 g6 5. 0-0 Bg7 6. Re1 0-0 7. h3 Nc6 8. c3 a6 9. Bb3 b5 10. a4 Bb7 11. Nbd2 Qb6 12. Nf1 Na5 13. Bc2 Nd7 14. Bg5 Rfe8 15. d4 b4 16. Ne3 bxc3 17. bxc3 Qb2 18. Qd2 cxd4 19. cxd4 Qb6 20. Rab1 Qc7 21. Bd3 e5 22. Rec1 Bc6 23. d5 Nc5 24. dxc6 Nab3 25. Rxb3 Nxb3 26. Nd5 Qa7 27. Qe3 Nxc1 28. Qxc1 h6 29. Nf6+ Bxf6 30. Bxf6 Kh7 31. Ng5+ hxg5 32. Qxg5 Re6 33. Qh4+ 1-0

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.22"]
[Round "9"]
[White "Blandon Villa, Diego F"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1/2-1/2"]
[ECO "C86"]
[WhiteElo "2216"]
[BlackElo "2323"]
[PlyCount "56"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 0-0 8. d4 d6 9. 0-0 Bg4 10. Rd1 Qb8 11. Be3 Na5 12. Bc2 c5 13. d5 Nxe4 14. Bxe4 f5 15. Bc2 e4 16. Bf4 Qb7 17. Nbd2 exf3 18. Nxf3 Rae8 19. Qd3 Nc4 20. Rab1 Bf6 21. h3 Bh5 22. g4 Bg6 23. gxf5 Bh5 24. b3 Ne5 25. Bxe5 Bxe5 26. Re1 Bxf3 27. Qxf3 Qc7 28. Re3 b4 1/2-1/2

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.22"]
[Round "8"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Garcia Pantoja, Roberto"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2323"]
[BlackElo "2481"]
[PlyCount "60"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 c5 7. Bxb4 cxb4 8. Bg2 Bb7 9. 0-0 0-0 10. Nbd2 d6 11. Ne1 Bxg2 12. Kxg2 Nc6 13. e3 Qe7 14. Qf3 Rfc8 15. Nd3 d5 16. Rfc1 Rc7 17. Rc2 Rac8 18. g4 h6 19. h3 Na5 20. Rac1 dxc4 21. bxc4 Nd5 22. e4 Nc3 23. a3 Nb5 24. cxb5 Rxc2 25. Rxc2 Rxc2 26. Qd1 Rc8 27. Nxb4 Qd7 28. Nf3 Qxb5 29. Ne5 Nc4 30. Nbc6 Rxc6 0-1

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.20"]
[Round "5"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Escobar Medina, Andres F"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2323"]
[BlackElo "2293"]
[PlyCount "71"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. Qc2 b6 5. e4 Bxc3 6. bxc3 d6 7. d4 e5 8. dxe5 dxe5 9. c5 0-0 10. Ba3 Qe7 11. Bc4 Nbd7 12. Qa4 Nxc5 13. Qc6 Bg4 14. Bxc5 bxc5 15. Ng5 Rab8 16. f3 Rb6 17. Qa4 Bd7 18. Qxa7 h6 19. Nxf7 Rxf7 20. Qxc7 Rc6 21. Bxf7+ Kxf7 22. Qb7 Nxe4 23. 0-0 Nf6 24. a4 Be8 25. Rfb1 Rc7 26. Qb8 e4 27. fxe4 Nxe4 28. Rf1+ Kg6 29. a5 Nxc3 30. a6 Bc6 31. a7 Ne2+ 32. Kh1 Bxg2+ 33. Kxg2 Qg5+ 34. Kf2 Qf4+ 35. Ke1 Qe3 36. Qb1+ 1-0

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.19"]
[Round "2"]
[White "Castaneda Jimenez, Jhon David"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2175"]
[BlackElo "2323"]
[PlyCount "114"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Qa4+ Bd7 6. Qb3 Nb6 7. Ng5 e6 8. d3 Nc6 9. h4 Nd4 10. Qd1 h6 11. Nge4 f5 12. e3 Nc6 13. Nd2 e5 14. Nb3 a5 15. d4 a4 16. Nc5 exd4 17. exd4 Qe7+ 18. Be2 Bg7 19. Be3 a3 20. g3 axb2 21. Rb1 f4 22. gxf4 Bf5 23. Rxb2 0-0-0 24. Rd2 Nxd4 25. Rxd4 Rxd4 26. Bxd4 Rd8 27. Nb3 Bxd4 28. Nxd4 Qb4 29. Qb3 Qxd4 30. h5 Qd2+ 31. Kf1 Qc1+ 32. Kg2 Qxf4 33. hxg6 Qg5+ 34. Kf1 Qxg6 35. Nb5 Rg8 36. Qg3 Qxg3 37. fxg3 Rxg3 38. Rxh6 Bb1 39. Kf2 Rg7 40. a3 c6 41. Rh1 Bh7 42. Nd4 Rf7+ 43. Ke3 Kc7 44. Rh6 Re7+ 45. Kf2 Nd5 46. Bf3 Nf4 47. Rf6 Nh3+ 48. Kg2 Ng5 49. a4 Nxf3 50. Kxf3 Be4+ 51. Kf2 Kb6 52. Ne2 Bd3 53. Nc3 Bc4 54. Rf5 Rf7 55. Rxf7 Bxf7 56. Ke3 Bb3 57. Kd4 Ka5 0-1

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.19"]
[Round "3"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Ramirez, Benjamin Dario"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "2323"]
[BlackElo "2154"]
[PlyCount "71"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 Nf6 4. fxe5 Nxe4 5. d3 Nc5 6. d4 Na6 7. d5 Ne7 8. d6 Ng6 9. Bxa6 bxa6 10. Qd5 c6 11. Qe4 Qb6 12. Na3 Bb7 13. Nc4 Qb5 14. a4 Qd5 15. Qe2 0-0-0 16. Be3 c5 17. Rd1 Qc6 18. b3 Re8 19. 0-0 f6 20. Qf2 Re6 21. Bxc5 Nf4 22. Be3 Qxf3 23. Qxf3 Bxf3 24. Rxf3 Ne2+ 25. Kf1 Nc3 26. Rd3 Ne4 27. Rd4 Nc5 28. Rdf4 Nb7 29. Bxa7 Nd8 30. Bc5 Re8 31. exf6 gxf6 32. Nb6+ Kb7 33. Nxd7 Ne6 34. Re4 Ng7 35. Rxe8 Nxe8 36. Nxf8 1-0

[Event "Medellin Raza op 7th"]
[Site "Medellin"]
[Date "2017.10.18"]
[Round "1"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Aponte Castillo, Jose Ernesto"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2323"]
[BlackElo "2117"]
[PlyCount "57"]
[EventDate "2017.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "COL"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 d6 3. exf5 Bxf5 4. Nh4 Be6 5. Qh5+ Bf7 6. Qb5+ Nd7 7. Qxb7 e5 8. Bb5 Ngf6 9. Nc3 Be7 10. Nf5 0-0 11. 0-0 Nc5 12. Qf3 Rb8 13. d4 a6 14. dxe5 dxe5 15. Qg3 Bg6 16. Qxe5 Bxf5 17. Bc4+ Kh8 18. Qxf5 Rb4 19. Bd3 Nxd3 20. Qxd3 Bd6 21. h3 Rd4 22. Qxa6 Ng4 23. Be3 Bh2+ 24. Kh1 Nxe3 25. fxe3 Rd6 26. Qb5 Rb6 27. Rxf8+ Qxf8 28. Rf1 Qd8 29. Qd7 1-0

[Event "American Continental 13th"]
[Site "Medellin"]
[Date "2017.06.17"]
[Round "10"]
[White "Cardoso Cardoso, Jose Gabriel"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "0-1"]
[ECO "D97"]
[WhiteElo "2134"]
[BlackElo "2303"]
[PlyCount "64"]
[EventDate "2017.06.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 0-0 7. e4 a6 8. e5 b5 9. Qb3 Nfd7 10. e6 fxe6 11. h4 Nb6 12. Be3 Nc6 13. Rd1 b4 14. Ne4 Qd5 15. Qc2 b3 16. axb3 Nb4 17. Qb1 Qxb3 18. Nc5 Qc2 19. Qxc2 Nxc2+ 20. Kd2 Nxe3 21. fxe3 e5 22. dxe5 Rd8+ 23. Kc2 Rxd1 24. Kxd1 Bg4 25. Kc2 a5 26. Bd3 a4 27. Na6 c5 28. Nc7 Rd8 29. Rf1 Rd7 30. Nb5 Be6 31. Be4 Bc4 32. e6 Rd8 0-1

[Event "American Continental 13th"]
[Site "Medellin"]
[Date "2017.06.16"]
[Round "9"]
[White "Vera Siguenas, Deivy Anthoni"]
[Black "Guerrero Sierra, Juan Carlos"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2526"]
[BlackElo "2303"]
[PlyCount "66"]
[EventDate "2017.06.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. h3 Nbd7 5. Bd3 Qc7 6. 0-0 b6 7. Re1 Bb7 8. Bc2 Rc8 9. Na3 g6 10. d4 Bg7 11. Bf4 0-0 12. e5 dxe5 13. dxe5 Nh5 14. Bh2 Bxf3 15. Qxf3 Bxe5 16. Rxe5 Nxe5 17. Qd5 Rfd8 18. Qxe5 Qxe5 19. Bxe5 f6 20. g4 Ng7 21. Bh2 g5 22. f4 h6 23. f5 Rd2 24. Bb3+ Kf8 25. Nc4 Rd3 26. Bc2 Rxh3 27. Kg2 Rh4 28. Ne3 Rd8 29. Rd1 Rxd1 30. Bxd1 Rxh2+ 31. Kxh2 Ne8 32. Bf3 Nd6 33. Bd5 Ke8 1-0

[Event "American Continental 13th"]
[Site "Medellin"]
[Date "2017.06.15"]
[Round "8"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Vazquez, Guillermo"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2303"]
[BlackElo "2443"]
[PlyCount "90"]
[EventDate "2017.06.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[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 Bb4 9. f3 Ne7 10. Bg5 b5 11. a3 Bxc3 12. Qxc3 Qxc3 13. bxc3 d5 14. Nb3 dxe4 15. Bxf6 gxf6 16. fxe4 Rg8 17. g3 Rg5 18. Bd3 Ng6 19. Rhf1 Ke7 20. Rd2 Ne5 21. Na5 Bd7 22. Rdf2 Ng4 23. Rd2 Rc8 24. Kb2 Rgc5 25. Rf4 Ne5 26. Rdf2 Rxc3 27. Rxf6 Rxd3 28. cxd3 Nxd3+ 29. Kb3 Nxf2 30. Rxf2 e5 31. Kb4 Rc1 32. Rf3 Re1 33. Kc5 Rxe4 34. Kb6 Re1 35. Kxa6 e4 36. Rc3 e3 37. Nb3 Kf6 38. Nd4 Bg4 39. Nc2 Rb1 40. Rxe3 Rb2 41. Nb4 Rxh2 42. Kxb5 Be6 43. Kb6 Rb2 44. Kc5 Rb1 45. Nd5+ Bxd5 1/2-1/2

[Event "American Continental 13th"]
[Site "Medellin"]
[Date "2017.06.14"]
[Round "7"]
[White "Guerrero Sierra, Juan Carlos"]
[Black "Restrepo Loaiza, Luis Fernando"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2303"]
[BlackElo "2167"]
[PlyCount "77"]
[EventDate "2017.06.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "COL"]
[SourceTitle "CBM 178 Extra"]
[Source "ChessBase"]
[SourceDate "2017.06.22"]
[SourceVersion "1"]
[SourceVersionDate "2017.06.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e6 7. f3 d5 8. exd5 Nxd5 9. Nxd5 Qxd5 10. c4 Qa5+ 11. Kf2 Qc7 12. Bd3 Bc5 13. b4 Be7 14. a3 e5 15. Nf5 Bxf5 16. Bxf5 0-0 17. Qc2 g6 18. Be4 a5 19. h4 axb4 20. h5 Bc5 21. hxg6 Bxe3+ 22. Kxe3 hxg6 23. axb4 Rxa1 24. Rxa1 Qb6+ 25. Ke2 Nc6 26. Bxc6 bxc6 27. Rb1 Rd8 28. Qc3 Qa7 29. Ra1 Qd7 30. Rh1 Qe6 31. Rh4 Rd4 32. Re4 f5 33. Qxd4 fxe4 34. Qxe4 Kf7 35. g3 Qh3 36. Qxe5 Qg2+ 37. Ke3 Qg1+ 38. Kf4 Qb6 39. Qd6 1-0

