[Event "Buenos Aires FAOGBA op 2nd"]
[Site "Buenos Aires"]
[Date "2024.03.15"]
[Round "4"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "A33"]
[WhiteElo "2351"]
[BlackElo "1963"]
[PlyCount "93"]
[EventDate "2024.03.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB13_2024"]
[SourceDate "2024.03.27"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.27"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. a3 Nf6 7. Bg5 cxd4 8. Nxd4 Be7 9. e3 0-0 10. Be2 h6 11. Bh4 Be6 12. 0-0 Rc8 13. Rc1 g5 14. Bg3 Nxd4 15. Qxd4 Bc5 16. Qd3 Qe7 17. Be5 Rfd8 18. Na4 Bd6 19. Bxd6 Qxd6 20. Qd4 Bd7 21. Nc5 Rc7 22. f4 Ne8 23. Ne4 dxe4 24. Qxd6 Nxd6 25. Rxc7 g4 26. Rd1 Be6 27. Rd4 Kf8 28. h3 h5 29. Rc5 gxh3 30. Rxh5 Ke7 31. g4 Rg8 32. Kh2 Bxg4 33. Bxg4 Rxg4 34. Re5+ Kd7 35. Kxh3 Rg6 36. Rexe4 Kc6 37. Re5 Rh6+ 38. Kg4 Rg6+ 39. Kf3 b5 40. b4 a6 41. e4 Nc4 42. Rc5+ Kb6 43. a4 Nd6 44. e5 Nf5 45. a5+ Kb7 46. Rd7+ Kb8 47. Rxf7 1-0

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.27"]
[Round "8"]
[White "Koch, Juan Enrique"]
[Black "Garcia Lemos, Federico"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "1923"]
[BlackElo "2118"]
[PlyCount "52"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. b3 Be7 5. Bg2 0-0 6. Bb2 b6 7. 0-0 Bb7 8. e3 dxc4 9. bxc4 c5 10. Qe2 Nc6 11. Rd1 Qc7 12. Nc3 Rfd8 13. d3 a6 14. Ne1 Na7 15. a4 Bxg2 16. Kxg2 Rab8 17. f4 b5 18. axb5 axb5 19. cxb5 Nxb5 20. Kg1 Nxc3 21. Bxc3 Qd7 22. e4 Rb3 23. Qc2 Qb5 24. Rdb1 c4 25. dxc4 Qc5+ 26. Kh1 Qxc4 0-1

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.26"]
[Round "7"]
[White "Koch, Juan Enrique"]
[Black "Diaz, Diego Patricio"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "1923"]
[BlackElo "2077"]
[PlyCount "133"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 e5 6. 0-0 Nge7 7. a3 0-0 8. Rb1 a5 9. Ne1 d6 10. Nc2 Be6 11. Ne3 Rb8 12. Ned5 b6 13. d3 h6 14. Bd2 Kh7 15. b4 axb4 16. axb4 Nxb4 17. Nxb4 cxb4 18. Rxb4 d5 19. cxd5 Nxd5 20. Nxd5 Bxd5 21. Bxd5 Qxd5 22. Qb3 Qxb3 23. Rxb3 Rfc8 24. Be3 Rc2 25. Re1 b5 26. Kf1 b4 27. Rc1 Rxc1+ 28. Bxc1 Bf8 29. f4 Ra8 30. Bd2 exf4 31. Bxf4 Bc5 32. Be5 Ra2 33. Bb2 f5 34. Kg2 g5 35. Kf3 Kg6 36. e4 g4+ 37. Kf4 fxe4 38. d4 Bd6+ 39. Kxe4 h5 40. Kd5 Ra6 41. Bc1 h4 42. gxh4 Kh5 43. Bg5 Bxh2 44. Rxb4 g3 45. Bf4 Kxh4 46. Bxg3+ Bxg3 47. Rb7 Kg4 48. Rf7 Bf4 49. Ke4 Re6+ 50. Kd5 Re8 51. Kc6 Re6+ 52. Kd5 Rd6+ 53. Kc5 Rd8 54. d5 Rc8+ 55. Kb6 Be3+ 56. Kb7 Rd8 57. Kc6 Bf4 58. Rd7 Rc8+ 59. Kb7 Rb8+ 60. Kc6 Rc8+ 61. Kb7 Rb8+ 62. Kc6 Kf5 63. Rf7+ Ke4 64. Rxf4+ Kxf4 65. Kc7 Rb1 66. d6 Rc1+ 67. Kb8 1/2-1/2

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.25"]
[Round "6"]
[White "Valverde, Fausto"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1802"]
[BlackElo "1923"]
[PlyCount "80"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. d3 Be7 5. 0-0 0-0 6. a4 a5 7. Kh1 Nc6 8. Ng1 e5 9. f3 Be6 10. e4 Qd7 11. Nc3 Rad8 12. Bd2 dxe4 13. fxe4 Bc5 14. Qe1 Nd4 15. Rc1 Nxc2 16. Rxc2 Qxd3 17. Bg5 Qxc2 18. Bxf6 Rd2 19. Qxd2 Qxd2 20. Bxe5 Bd6 21. Nb1 Qc2 22. Bd4 Qxa4 23. Nf3 Bg4 24. Nbd2 Bb4 25. b3 Qd7 26. Be3 Bh3 27. Nc4 Bxg2+ 28. Kxg2 Qd3 29. Bf4 Qxb3 30. Ne3 f6 31. h4 a4 32. Nd4 Qb2+ 33. Ndc2 Rd8 34. Kh3 Bd6 35. Rd1 a3 36. Na1 h5 37. Nec2 Be7 38. Rf1 g5 39. Bc1 Qc3 40. Re1 Rd3 0-1

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.23"]
[Round "5"]
[White "Sanz, Luis"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "2105"]
[BlackElo "1923"]
[PlyCount "65"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qa4+ Bd7 6. Qxd4 exd5 7. Qxd5 Nc6 8. Nf3 Nf6 9. Qd1 Bc5 10. a3 Qe7 11. Bg5 0-0-0 12. e3 Bf5 13. Qa4 h6 14. Qf4 Bh7 15. Bxf6 gxf6 16. Rc1 Rhe8 17. Be2 Bd3 18. Bxd3 Rxd3 19. Qf5+ Rd7 20. 0-0 Bd6 21. Nd5 Qe6 22. Qxe6 Rxe6 23. Nd4 Bxh2+ 24. Kxh2 Rxd5 25. Nxe6 fxe6 26. Rfd1 Rh5+ 27. Kg3 Rg5+ 28. Kf3 Kc7 29. g3 Rb5 30. b4 Rf5+ 31. Ke2 Kb6 32. Rd6 Re5 33. Rc5 1-0

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.21"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Galli, Gabriel"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "1923"]
[BlackElo "1810"]
[PlyCount "65"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. c4 c6 5. cxd5 cxd5 6. d4 e6 7. 0-0 Bxf3 8. Bxf3 Ngf6 9. Nc3 Bb4 10. Bd2 0-0 11. a3 Bxc3 12. Bxc3 Nb6 13. Ba5 Rc8 14. Rc1 Rc6 15. Rxc6 bxc6 16. Bb4 Re8 17. Qc2 Qd7 18. Rc1 Rc8 19. b3 Qb7 20. g4 h6 21. h4 Qb8 22. g5 hxg5 23. hxg5 Nfd7 24. Qd2 e5 25. Bg4 g6 26. dxe5 Qxe5 27. Bc3 Qd6 28. Qd4 Kf8 29. Qh8+ Ke7 30. Bf6+ Nxf6 31. gxf6+ Qxf6 32. Qxf6+ Kxf6 33. Bxc8 1-0

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.20"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Cumpe, Lucas"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "1923"]
[BlackElo "2224"]
[PlyCount "56"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. d3 Ngf6 5. 0-0 Bd6 6. c4 d4 7. e3 dxe3 8. Bxe3 c5 9. Nc3 h6 10. Nd2 0-0 11. Nde4 Nxe4 12. dxe4 Nf6 13. Nb5 Be7 14. Qxd8 Rxd8 15. Nc7 Rb8 16. Nd5 Nxd5 17. cxd5 b6 18. Rfc1 Bd6 19. a4 f5 20. f3 f4 21. gxf4 exf4 22. Bd2 Be5 23. Bc3 Re8 24. Bf1 Kf7 25. a5 Kf6 26. axb6 axb6 27. Ra7 Rb7 28. Rca1 Bxc3 1/2-1/2

[Event "Villa Ballester op 73rd"]
[Site "Buenos Aires"]
[Date "2024.01.19"]
[Round "1"]
[White "Domeniconi, Fabricio"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1310"]
[BlackElo "1923"]
[PlyCount "84"]
[EventDate "2024.01.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CB06_2024"]
[SourceDate "2024.02.07"]
[SourceVersion "1"]
[SourceVersionDate "2024.02.07"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. g3 Nf6 5. Bg2 c5 6. d3 Nc6 7. Nf3 d4 8. Ne4 Nxe4 9. dxe4 Be7 10. 0-0 0-0 11. Bf4 Be6 12. Qc2 h6 13. Rfd1 Qa5 14. Qd2 Qxd2 15. Bxd2 Rfd8 16. b3 a5 17. Bc1 a4 18. Rb1 axb3 19. axb3 Ra2 20. Rd2 Rda8 21. e3 Ra1 22. Rdb2 R8a2 23. exd4 cxd4 24. Nd2 Rxb1 25. Rxb1 Bb4 26. Nc4 b5 27. Nb2 Bxb3 28. Nd3 Bc4 29. Nxb4 Nxb4 30. Bf3 Nd3 31. Bf4 Rxf2 32. Bg4 Ra2 33. h4 b4 34. Bd1 Nb2 35. Be5 Nxd1 36. Rxd1 d3 37. Bf4 b3 38. Be5 Re2 39. Bc3 Rxe4 40. Kf2 Re2+ 41. Kf3 Rc2 42. Bd4 Re2 0-1

[Event "Mar de Ajo op 5th"]
[Site "Mar de Ajo"]
[Date "2023.11.11"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Asprelli, Gaspar"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1909"]
[BlackElo "2240"]
[PlyCount "108"]
[EventDate "2023.11.10"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CB46_2023"]
[SourceDate "2023.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 d5 4. cxd5 Nxd5 5. Nc3 Nc6 6. Bg2 Nc7 7. d3 e5 8. Qa4 Bd7 9. a3 Be7 10. h4 0-0 11. 0-0 b5 12. Qd1 a6 13. Bg5 f6 14. Be3 Rc8 15. Rc1 Ne6 16. Nd5 Bd6 17. Qd2 a5 18. b3 Ned4 19. Qb2 Be6 20. Nxd4 exd4 21. Bf4 Re8 22. Bxd6 Qxd6 23. Nf4 Bf7 24. h5 Re5 25. Bf3 Ne7 26. b4 axb4 27. axb4 c4 28. dxc4 bxc4 29. Rfd1 Rd8 30. b5 Qb6 31. Rb1 c3 32. Qc2 Rxb5 33. Rxb5 Qxb5 34. Rb1 Qe5 35. Be4 f5 36. Bd3 g5 37. hxg6 hxg6 38. Rb5 Qd6 39. Qb1 Ra8 40. Rb6 Qc5 41. Rb5 Qc7 42. Rb7 Qd6 43. Rb6 Qa3 44. Rb8+ Kg7 45. Rxa8 Qxa8 46. Qb4 Nc6 47. Qd6 Qb7 48. Ne6+ Bxe6 49. Qxe6 Qc7 50. Qc4 Qd6 51. f4 Nb4 52. e3 Nc6 53. Kf2 Kf8 54. Ke2 Qe7 0-1

[Event "Buenos Aires Masters op"]
[Site "Buenos Aires"]
[Date "2023.06.18"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Ccahuancama, Abraham William"]
[Result "0-1"]
[ECO "A24"]
[WhiteElo "1947"]
[BlackElo "1682"]
[PlyCount "103"]
[EventDate "2023.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 e5 5. e4 d6 6. Nge2 0-0 7. 0-0 Re8 8. d3 c6 9. Bg5 Bg4 10. Qd2 Nbd7 11. h3 Be6 12. b3 Nb6 13. d4 Qd7 14. Kh2 Qc7 15. d5 Bd7 16. Rfd1 c5 17. Rf1 Rf8 18. Rae1 Rae8 19. Bh6 a6 20. Bxg7 Kxg7 21. f4 exf4 22. gxf4 Nh5 23. f5 Bc8 24. Nf4 Nf6 25. Rf3 Nbd7 26. Rg3 Ne5 27. Bf3 Rh8 28. Qg2 Kf8 29. Rf1 Ke7 30. Bd1 Reg8 31. fxg6 hxg6 32. Nd3 Nxd3 33. Rxd3 g5 34. e5 Nh5 35. Ne4 Qd7 36. exd6+ Kf8 37. Bg4 Qxg4 38. hxg4 Nf4+ 39. Kg1 Nxg2 40. Kxg2 Bxg4 41. Re1 Bf5 42. Rde3 Bxe4+ 43. Rxe4 Kg7 44. Re7 Rd8 45. Rxb7 Rxd6 46. Kg3 Rh4 47. Rc7 Rd8 48. Re2 Rdh8 49. Rxc5 Kg6 50. d6 Rh1 51. Rxg5+ Kxg5 52. Kf3 0-1

[Event "Buenos Aires Masters op"]
[Site "Buenos Aires"]
[Date "2023.06.17"]
[Round "4"]
[White "Axarlian, Carlos"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2030"]
[BlackElo "1947"]
[PlyCount "87"]
[EventDate "2023.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. Nc3 a6 6. Bxc6+ bxc6 7. d4 exd4 8. Nxd4 Bd7 9. Qf3 Be7 10. e5 dxe5 11. Nxc6 Bxc6 12. Qxc6+ Nd7 13. Be3 0-0 14. Rd1 Bd6 15. Ne4 Nf6 16. Bg5 Qe8 17. Nxf6+ gxf6 18. Qxe8 Rfxe8 19. Bxf6 Re6 20. Bh4 Rb8 21. b3 Rb4 22. c4 a5 23. Bg5 Rb8 24. Be3 f5 25. Ke2 f4 26. Bd2 Rbe8 27. Bc3 e4 28. Rd5 Bb4 29. Rc1 Rf8 30. Rg5+ Rg6 31. Rxg6+ hxg6 32. f3 e3 33. g3 g5 34. gxf4 gxf4 35. Be5 Bd6 36. Bc3 Rf5 37. Kd3 Rh5 38. Rc2 Kf7 39. Bd4 c5 40. Bc3 Bc7 41. Rg2 Rh7 42. Ke4 Kf8 43. Kd5 Rh5+ 44. Ke6 1-0

[Event "Buenos Aires Masters op"]
[Site "Buenos Aires"]
[Date "2023.06.16"]
[Round "3"]
[White "Koch, Juan Enrique"]
[Black "Saliba, Gabriel Ivan"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "1947"]
[PlyCount "56"]
[EventDate "2023.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Qc2 e6 5. Nc3 Bd6 6. b3 Nbd7 7. Bb2 e5 8. cxd5 cxd5 9. Nb5 Bb8 10. Ba3 Ne4 11. Rc1 Nb6 12. Nc7+ Bxc7 13. Qxc7 Qxc7 14. Rxc7 Nd7 15. Nxe5 Kd8 16. Rxd7+ Bxd7 17. Nxf7+ Kc7 18. Nxh8 Rxh8 19. f3 Nf6 20. Bd3 b5 21. Kf2 a6 22. Rc1+ Bc6 23. Bc5 Re8 24. Bd4 Re6 25. g4 g5 26. Bf5 Rd6 27. Be5 h5 28. gxh5 Nxh5 1-0

[Event "Buenos Aires Masters op"]
[Site "Buenos Aires"]
[Date "2023.06.15"]
[Round "2"]
[White "Unhold, Valentin"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2060"]
[BlackElo "1947"]
[PlyCount "55"]
[EventDate "2023.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 Nbd7 5. c4 Be7 6. Nc3 c5 7. cxd5 exd5 8. d4 0-0 9. Bd3 Re8 10. 0-0 Bd6 11. Rc1 cxd4 12. Nxd4 Ne5 13. Bf5 a6 14. h3 Nc6 15. Bxc8 Rxc8 16. Nf5 Bf8 17. Qf3 d4 18. Nxd4 Nxd4 19. exd4 Qxd4 20. Rfd1 Qh4 21. Qxb7 Bc5 22. Qf3 h6 23. Na4 Ne4 24. Nxc5 Nxc5 25. Rd4 Qe7 26. Rdc4 Qe2 27. Qxe2 Rxe2 28. Bd4 1-0

[Event "Buenos Aires Masters op"]
[Site "Buenos Aires"]
[Date "2023.06.14"]
[Round "1"]
[White "Koch, Juan Enrique"]
[Black "Hernandez Figueroa, Martin Jose"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1947"]
[PlyCount "53"]
[EventDate "2023.06.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 a6 6. Nge2 0-0 7. 0-0 d6 8. a3 Bf5 9. d4 exd4 10. Nxd4 Qd7 11. Nxf5 Qxf5 12. Nd5 Nxd5 13. cxd5 Ne5 14. b4 Bb6 15. Bb2 Rfe8 16. Bd4 Nd7 17. Rc1 Rac8 18. Bf3 Ne5 19. Be2 c5 20. dxc6 Bxd4 21. exd4 Rxc6 22. dxe5 Qxe5 23. Bf3 Rc3 24. Bxb7 Rxa3 25. Re1 Qb5 26. Rxe8+ Qxe8 27. Rc8 1-0

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.07"]
[Round "9"]
[White "Koch, Juan Enrique"]
[Black "Gaite, Karen Nerina"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "1962"]
[BlackElo "1660"]
[PlyCount "195"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nf6 3. e3 e6 4. b3 Bd6 5. Bb2 Nbd7 6. Nc3 c6 7. Qc2 dxc4 8. bxc4 Qe7 9. Be2 e5 10. d4 a6 11. h3 h5 12. 0-0-0 Ba3 13. Bxa3 Qxa3+ 14. Qb2 Qe7 15. dxe5 Nxe5 16. Nxe5 Qxe5 17. Na4 Qxb2+ 18. Kxb2 Bf5 19. g4 Be6 20. Nc5 Ke7 21. f3 hxg4 22. hxg4 Rxh1 23. Rxh1 Rd8 24. Kc3 Bc8 25. a4 b6 26. Nb3 Bd7 27. g5 Ne8 28. Bd3 c5 29. a5 Ba4 30. Rb1 Bxb3 31. Rxb3 bxa5 32. Ra3 Nc7 33. Rxa5 Kd6 34. Be4 Rb8 35. f4 f6 36. gxf6 gxf6 37. Bd3 Rg8 38. Bf5 Rh8 39. Ra2 Rd8 40. Rd2+ Ke7 41. Rh2 Ne8 42. Rh7+ Kd6 43. Rb7 Kc6 44. Be4+ Kd6 45. Rb6+ Kd7 46. Rxa6 Nd6 47. Bd5 Rc8 48. Ra7+ Rc7 49. Rxc7+ Kxc7 50. e4 Kd7 51. Kd3 Ne8 52. Ke3 Ke7 53. Kf3 Ng7 54. Kg3 Nh5+ 55. Kg4 Ng7 56. e5 fxe5 57. fxe5 Ne8 58. Kf5 Ng7+ 59. Ke4 Ne8 60. Kd3 Kd7 61. Kc3 Kc7 62. Bf7 Ng7 63. Kd3 Kd7 64. Ke4 Kc6 65. Kd3 Nf5 66. Bd5+ Kd7 67. Kc3 Ne7 68. Kb3 Kc7 69. Ka4 Kb6 70. Be4 Nc8 71. Kb3 Ne7 72. Kc3 Kc7 73. Kd3 Kd7 74. Bg2 Ke6 75. Ke4 Kf7 76. Bh3 Kg6 77. Be6 Kg5 78. Bd7 Kg6 79. Kd3 Kg5 80. Ke3 Kg6 81. Kf4 Kf7 82. Kg5 Ng8 83. Bc6 Ne7 84. Bd7 Ng8 85. e6+ Ke7 86. Kf5 Kd6 87. Kg6 Ne7+ 88. Kf7 Nf5 89. Kf6 Ne7 90. Be8 Nc8 91. Bh5 Ne7 92. Bf3 Nc8 93. Bb7 Ne7 94. Bd5 Nc8 95. Kf7 Ne7 96. Kf8 Nc8 97. Ke8 Ne7 98. Kf7 1/2-1/2

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.06"]
[Round "8"]
[White "Fernandez Babasz, Santiago Ernesto"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "D38"]
[BlackElo "1962"]
[PlyCount "98"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Bb4 5. Nf3 h6 6. Bh4 g5 7. Bg3 Ne4 8. Rc1 h5 9. Qa4+ Nc6 10. h3 Bd7 11. cxd5 exd5 12. Qb5 Bxc3+ 13. bxc3 Nxg3 14. fxg3 Nxd4 15. Qxd5 Nxf3+ 16. gxf3 Qf6 17. Qxb7 0-0 18. Qxc7 Bc6 19. Kf2 Rfd8 20. Bg2 Rd7 21. Qa5 Rad8 22. h4 Rd5 23. hxg5 Rxg5 24. Qb4 Rb5 25. Qf4 Qxf4 26. gxf4 Rd2 27. Rhd1 Rxa2 28. Ra1 Rxa1 29. Rxa1 a5 30. Ke3 Bd7 31. c4 Rb3+ 32. Kd4 a4 33. Rh1 Rb2 34. Kd3 Bf5+ 35. e4 Rxg2 36. exf5 a3 37. Rxh5 a2 38. Rh1 Kf8 39. Ra1 Ke7 40. Kc3 Rf2 41. Kb4 Kd7 42. Ka5 Rd2 43. Kb5 Kc7 44. Kc5 Kd7 45. Re1 Rb2 46. Ra1 Rd2 47. Kb5 Rf2 48. Kc5 Rxf3 49. Rxa2 Rxf4 1/2-1/2

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.05"]
[Round "7"]
[White "Rojas, Patricio Santiago"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1649"]
[BlackElo "1962"]
[PlyCount "49"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 f6 6. Bd3 e5 7. Qh5+ g6 8. Bxg6+ hxg6 9. Qxh8 exf4 10. Qxg8 Bf5 11. Qh7 Qb6 12. Nf3 Qxb2 13. 0-0 Qxa1 14. Qxb7 Rc8 15. Re1+ Be7 16. Nh4 Kd8 17. Nxf5 gxf5 18. Qb3 Rb8 19. Qxd5+ Kc7 20. Qxf5 Qxa2 21. Qxf4+ Bd6 22. Qc1 Bxh2+ 23. Kxh2 Qxf2 24. Re3 Rg8 25. Kh1 0-1

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.04"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Paris, Adolfo"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1962"]
[BlackElo "1815"]
[PlyCount "74"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. c3 b6 4. Bf4 Bb7 5. e3 Be7 6. h3 0-0 7. Nbd2 Nd5 8. Bh2 f5 9. Bd3 Nf6 10. Qc2 Kh8 11. 0-0-0 c5 12. e4 c4 13. Bxc4 fxe4 14. Ng5 Ng8 15. h4 Bxg5 16. hxg5 Qxg5 17. Bg3 Nh6 18. Bh4 Qg6 19. Nf1 d5 20. Be2 Nd7 21. Ne3 Nf5 22. Nxf5 exf5 23. Be7 Rfe8 24. Ba3 Nf6 25. g3 Re6 26. Rdg1 a5 27. g4 fxg4 28. Qd1 e3 29. f3 Ba6 30. Bxa6 Rxa6 31. Qe2 Ra8 32. fxg4 Ne4 33. Rh3 Rae8 34. Rf3 Nd2 35. Rf5 Rf6 36. Rd1 Rxf5 37. gxf5 Qxf5 0-1

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.03"]
[Round "5"]
[White "Ibarra, Juan Martin"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2182"]
[BlackElo "1962"]
[PlyCount "107"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. a4 Be7 7. Nc3 0-0 8. d4 e4 9. Nxe4 Nxe4 10. Rxe4 d5 11. Re1 Bg4 12. c3 Bf6 13. h3 Bxf3 14. Qxf3 Ne7 15. Bd2 c6 16. Bd3 Nc8 17. h4 Nd6 18. g3 Qd7 19. h5 Rfe8 20. h6 Rxe1+ 21. Rxe1 Re8 22. Rxe8+ Nxe8 23. Kg2 g6 24. g4 Be7 25. g5 f5 26. c4 Nc7 27. Qg3 Bd6 28. Qf3 Be7 29. b3 Kf8 30. Qg3 Bd6 31. Qe3 Qe6 32. Qf3 Qd7 33. a5 a6 34. Qe3 Qe6 35. Qf3 Qd7 36. Kf1 Be7 37. Qe3 Qe6 38. Qh3 Ne8 39. c5 Bd8 40. Bf4 Bxa5 41. Qg3 Qe7 42. Bd6 Nxd6 43. cxd6 Qe1+ 44. Kg2 Qe6 45. d7 Bd8 46. Qb8 Qxd7 47. Qe5 Qf7 48. Qh8+ Ke7 49. f4 Kd7 50. Kf3 Qe7 51. Qg7 Bc7 52. Bxf5+ gxf5 53. g6 hxg6 54. Qxe7+ 1-0

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.05.02"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Menasse, Lautaro"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1962"]
[PlyCount "97"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 d5 3. cxd5 Nxd5 4. Nc3 e6 5. g3 c5 6. Bg2 Nc6 7. 0-0 Be7 8. d3 0-0 9. Bd2 b6 10. Qa4 Bb7 11. a3 a6 12. Rfc1 Qc7 13. Ne4 Rac8 14. Rab1 Qd7 15. h4 Ne5 16. Qxd7 Nxd7 17. Bg5 N7f6 18. Ne5 Rc7 19. Nc4 Rb8 20. Nxf6+ Bxf6 21. e4 Bxg5 22. hxg5 b5 23. exd5 bxc4 24. dxc4 exd5 25. cxd5 Rd8 26. d6 Rxd6 27. Bxb7 Rxb7 28. Rxc5 g6 29. b4 Rb5 30. Rbc1 Rd5 31. Rxd5 Rxd5 32. Rc5 Rd6 33. Rc8+ Kg7 34. Ra8 h6 35. gxh6+ Kxh6 36. Kf1 Kg5 37. Ke2 Kf5 38. Re8 Rd5 39. Re3 Kg4 40. Re4+ Kf5 41. Rf4+ Ke6 42. a4 f5 43. Rc4 Kd6 44. Ke3 g5 45. Rd4 Kc6 46. Rxd5 Kxd5 47. Kd3 g4 48. Ke3 Kc4 49. b5 1-0

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.04.30"]
[Round "2"]
[White "Sanhueza, Cristian"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2204"]
[BlackElo "1962"]
[PlyCount "47"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 0-0 9. d4 Bf6 10. Re1 Re8 11. Rxe8+ Nxe8 12. d5 d6 13. Nd2 g6 14. Nc4 c6 15. c3 Bd7 16. Bf4 cxd5 17. Qxd5 Bc6 18. Qd2 d5 19. Ne5 Nd6 20. Rd1 Ne4 21. Qc2 Qe7 22. Nxc6 bxc6 23. Qa4 Qd7 24. Qxe4 1-0

[Event "ARG-ch sf 98th"]
[Site "Buenos Aires"]
[Date "2023.04.29"]
[Round "1"]
[White "Koch, Juan Enrique"]
[Black "Ripa, Martin"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "1962"]
[PlyCount "81"]
[EventDate "2023.04.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e4 d6 6. Nge2 Nbd7 7. 0-0 c6 8. d3 Rb8 9. Be3 b6 10. h3 Bb7 11. Qd2 Re8 12. Rad1 Nf8 13. d4 N8d7 14. f4 a6 15. d5 c5 16. a4 Bc8 17. Kh2 h6 18. Ng1 Kh7 19. Nf3 Nf8 20. e5 Ng8 21. Rfe1 Bd7 22. Bf1 Qc7 23. Bf2 Rbd8 24. b3 Bc8 25. Ne4 f5 26. Neg5+ hxg5 27. Nxg5+ Kh8 28. Nf7+ Kh7 29. Ng5+ Kh8 30. Nf7+ Kh7 31. e6 Nh6 32. Bd3 Kg8 33. Nxd8 Qxd8 34. Qc2 Kh7 35. g4 fxg4 36. Rg1 Nf5 37. Bxf5 gxf5 38. Qxf5+ Kh8 39. Rxg4 Bf6 40. Rdg1 Nh7 41. Rg6 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.18"]
[Round "9"]
[White "Lupi, Pablo Cesar"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C13"]
[WhiteElo "2139"]
[BlackElo "1933"]
[PlyCount "127"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 f5 8. Nc3 a6 9. g3 b5 10. Bg2 Bb7 11. 0-0 0-0 12. Qd2 Bf6 13. Rad1 Nd7 14. d5 e5 15. d6 Nc5 16. b4 Ne4 17. Nxe4 fxe4 18. dxc7 Qe7 19. Nh4 Bxh4 20. gxh4 Rfc8 21. Rfe1 Rxc7 22. Re3 f5 23. Rg3+ Kh8 24. Qh6 Rg8 25. Rd6 Rxg3 26. hxg3 Rc8 27. Qd2 e3 28. fxe3 Bxg2 29. Kxg2 Rxc2 30. Qxc2 Qxd6 31. Qxf5 Kg7 32. Kf3 Qd5+ 33. Qe4 Qd1+ 34. Kg2 Qe2+ 35. Kh3 Qf1+ 36. Kg4 Qe2+ 37. Kf5 Qh5+ 38. Ke6 Qe8+ 39. Kd5 Kf6 40. Qf3+ Kg7 41. Qg4+ Kh8 42. Qf5 Qd8+ 43. Kxe5 Qc7+ 44. Ke4 Qc4+ 45. Kf3 Qxb4 46. Qf6+ Kg8 47. Qxa6 Qc4 48. Qa8+ Kf7 49. Qe4 Qxa2 50. Qxh7+ Kf6 51. Qh6+ Kf7 52. Qh5+ Kg7 53. Qxb5 Qa8+ 54. e4 Qa3+ 55. Kg4 Qd6 56. Qd5 Qa6 57. Qe5+ Kg6 58. h5+ Kf7 59. Kg5 Qb6 60. Qf5+ Ke7 61. h6 Qe3+ 62. Kg6 Qb6+ 63. Kg7 Qb2+ 64. e5 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.17"]
[Round "8"]
[White "Koch, Juan Enrique"]
[Black "Mayeregger, Guadalupe Milagros"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "1933"]
[BlackElo "1740"]
[PlyCount "65"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. e3 g6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 Nb6 9. d5 Nb8 10. Bb5+ Bd7 11. 0-0 Bg7 12. d6 0-0 13. Bg5 Be6 14. dxe7 Qc8 15. exf8Q+ Bxf8 16. Qd1 Nc6 17. Bxc6 Qxc6 18. Nd4 Qd7 19. Nxe6 Qxe6 20. Qf3 Rc8 21. Rfe1 Qc4 22. Qe4 Qc5 23. Be7 Bxe7 24. Qxe7 Qf5 25. Qe5 Qc2 26. Ne4 Nd7 27. Nf6+ Nxf6 28. Qxf6 h5 29. h3 Qa4 30. Re7 Rf8 31. b3 Qb5 32. Rd1 Qa5 33. Rdd7 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.16"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Quiroga, Facundo"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "1933"]
[BlackElo "2260"]
[PlyCount "80"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. Qa4 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bg5 Be4 11. Qc1 Nbd7 12. Bxf6 Nxf6 13. Nbd2 Bb7 14. Rd1 Ra7 15. Qc2 Qa8 16. Ne1 Bxg2 17. Nxg2 c5 18. dxc5 Rc8 19. Nb3 Rac7 20. Rac1 a5 21. c6 Rxc6 22. Qb1 g6 23. Nd4 Rxc1 24. Rxc1 Rxc1+ 25. Qxc1 Qd5 26. e3 e5 27. Nc6 Bc5 28. Nxa5 Qxa2 29. Nc6 Qd5 30. b4 Bd6 31. e4 Qxe4 32. Ne3 Nd5 33. Nxd5 Qxd5 34. Qc3 h5 35. h4 Qe4 36. f4 f6 37. fxe5 fxe5 38. Kf2 Kg7 39. Qf3 Qc2+ 40. Kg1 e4 0-1

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.16"]
[Round "7"]
[White "Marrujo Pardo, Mauricio Emmanuel"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2143"]
[BlackElo "1933"]
[PlyCount "113"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. Bb3 g5 7. 0-0 Bg7 8. Nbd2 0-0 9. a4 Ne7 10. Re1 Ng6 11. Nf1 Re8 12. Ng3 c6 13. d4 Bg4 14. h3 Bd7 15. Nf5 Bxf5 16. exf5 Nh4 17. Nxh4 gxh4 18. Be3 Nd5 19. Bxd5 cxd5 20. Qb3 Qf6 21. Qxd5 Qxf5 22. Qxd6 Rad8 23. Qc5 b6 24. Qb5 Re6 25. dxe5 Rg6 26. e6 Qxe6 27. Kh1 Qe4 28. f3 Qc2 29. Re2 Rd1+ 30. Rxd1 Qxd1+ 31. Bg1 Bf8 32. b4 Kg7 33. Qe5+ Kg8 34. Qe8 Kg7 35. Qe4 Re6 36. Qd4+ Qxd4 37. Bxd4+ Kg6 38. Rxe6+ fxe6 39. Kg1 Kf5 40. Kf2 e5 41. Be3 e4 42. Ke2 h5 43. Bf2 Be7 44. a5 bxa5 45. bxa5 a6 46. Bb6 Kf4 47. Bc7+ Kf5 48. c4 Bc5 49. Bb6 Be7 50. Ke3 Bg5+ 51. Ke2 Ke5 52. Be3 Bd8 53. f4+ Kf5 54. Bb6 Be7 55. c5 Ke6 56. c6 Kd6 57. Bc5+ 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.15"]
[Round "5"]
[White "Mackeprang, Luis"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2153"]
[BlackElo "1933"]
[PlyCount "90"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. d4 exd4 5. Nxd4 g6 6. Be3 Bg7 7. c4 0-0 8. Nc3 d6 9. h3 a6 10. Ba4 Ne5 11. Bb3 c5 12. Nde2 b5 13. cxb5 c4 14. Bc2 axb5 15. Nxb5 Ba6 16. Nbc3 Rb8 17. Rb1 Nd3+ 18. Bxd3 cxd3 19. Nf4 d5 20. Nfxd5 Nxd5 21. Nxd5 f5 22. Qa4 d2+ 23. Bxd2 Bd3 24. Rd1 fxe4 25. Ne3 Qf6 26. Ng4 Qxb2 27. Qd7 Qxa2 28. h4 h5 29. Ne3 Rf7 30. Qc6 Rbf8 31. Qxg6 Rxf2 32. Qxh5 Qf7 33. Qxf7+ R8xf7 34. Rc1 Re2+ 35. Kd1 Rff2 36. Nf1 Rxg2 37. Rc8+ Kh7 38. h5 Ref2 39. h6 Be5 40. Re8 Bxf1 41. Re7+ Kg6 42. Rxe5 Rxd2+ 43. Ke1 Bd3 44. Rg1 Rde2+ 45. Kf1 Ra2+ 0-1

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.14"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Arena, Carlos"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1933"]
[BlackElo "1496"]
[PlyCount "57"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 0-0 6. Be2 Nc6 7. d5 Nb8 8. h3 Nbd7 9. Be3 a5 10. 0-0 e5 11. dxe6 fxe6 12. Qc2 e5 13. Rad1 Qe7 14. a3 c6 15. b4 axb4 16. axb4 Ne8 17. Ra1 Rxa1 18. Rxa1 Ndf6 19. Ra7 Qc7 20. Qa2 Kh8 21. c5 Nxe4 22. Nxe4 d5 23. Nd6 d4 24. Ng5 h6 25. Ndf7+ Kg8 26. Nxh6+ Kh8 27. Nhf7+ Kg8 28. Nxe5+ Kh8 29. Nxg6# 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.13"]
[Round "3"]
[White "Uelf, Maximiliano"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2236"]
[BlackElo "1933"]
[PlyCount "93"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. Nbd2 c5 7. c3 Nc6 8. Re1 cxd4 9. Nxd4 Qb6 10. Nxc6 bxc6 11. e4 a5 12. e5 Nd7 13. Nf3 Nc5 14. Qc2 Ba6 15. Be3 Qc7 16. Rad1 Ne4 17. h4 a4 18. Ng5 Nxg5 19. hxg5 Rfb8 20. Bf1 Bxf1 21. Kxf1 Qb7 22. Bc1 c5 23. Kg2 d4+ 24. f3 Rd8 25. Rh1 g6 26. c4 d3 27. Rxd3 Rxd3 28. Qxd3 Rd8 29. Qc2 Qd7 30. Be3 Bf8 31. Re1 Qb7 32. Re2 Qc6 33. Rd2 Rxd2+ 34. Qxd2 Qc7 35. Qc3 Bg7 36. Bf4 Qd7 37. Be3 Bf8 38. b3 axb3 39. Qxb3 Qc7 40. f4 Qc6+ 41. Kg1 h6 42. gxh6 Bxh6 43. Bf2 Bf8 44. a4 g5 45. a5 gxf4 46. gxf4 Qe4 47. a6 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.12"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Mayeregger Gonzalez, Renata Valentina"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "1933"]
[BlackElo "1553"]
[PlyCount "76"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. c4 e5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Ne7 5. Rb1 c5 6. h3 Nbc6 7. b4 d6 8. b5 Nd4 9. e3 Ne6 10. h4 h6 11. Nge2 Rb8 12. 0-0 0-0 13. d3 Nc7 14. e4 f5 15. Bd2 f4 16. f3 Kh7 17. g4 Rh8 18. Kf2 Be6 19. Rh1 Kg8 20. Nd5 Ncxd5 21. cxd5 Bd7 22. b6 axb6 23. Rxb6 Bb5 24. Qb3 Qd7 25. g5 Ba4 26. Qb2 Nc8 27. Bh3 Qc7 28. Ba5 Nxb6 29. Bxb6 Qe7 30. Be6+ Kf8 31. Nc3 Bd7 32. Bc7 Rc8 33. Qb6 Rxc7 34. Qxc7 Bxe6 35. Qxe7+ Kxe7 36. dxe6 Kxe6 37. Rb1 Rb8 38. gxh6 Bxh6 1-0

[Event "Vicente Lopez ProAm 100 Years op"]
[Site "Buenos Aires"]
[Date "2022.10.11"]
[Round "1"]
[White "Dolezal, Cristian"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2365"]
[BlackElo "1933"]
[PlyCount "61"]
[EventDate "2022.10.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nf6 6. Bg2 Nc6 7. 0-0 Be7 8. dxc5 Bxc5 9. Bg5 0-0 10. Nbd2 Be7 11. Nb3 h6 12. Be3 Bg4 13. Nfd4 Qd7 14. Nxc6 bxc6 15. Rc1 Rfc8 16. Bc5 a5 17. Nd4 Bf8 18. Qa4 Ra6 19. Bxf8 Kxf8 20. Rc5 Qb7 21. f3 Qb6 22. Rfc1 Bd7 23. Qa3 Kg8 24. e3 Qb4 25. Qd3 Rb6 26. a3 Qa4 27. Qc3 Rcb8 28. Bf1 Rb5 29. Bxb5 cxb5 30. Qe1 Re8 31. Ra1 1-0

[Event "ARG-chT"]
[Site "Villa Martelli"]
[Date "2022.08.27"]
[Round "2.4"]
[White "Diaz, Diego Patricio"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2067"]
[BlackElo "1941"]
[PlyCount "191"]
[EventDate "2022.08.26"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]
[WhiteTeam "Villa Ballester"]
[BlackTeam "San Isidro"]
[WhiteTeamCountry "ARG"]
[BlackTeamCountry "ARG"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Bf8 13. Nxc6 bxc6 14. Na4 Re6 15. Bc5 Ne4 16. Bxe4 Rxe4 17. Bxf8 Qxf8 18. Nc5 Rb4 19. Qd2 Rab8 20. b3 Qe7 21. Rc2 Rg4 22. Rfc1 Rg6 23. Qf4 Rb5 24. Nd3 Rf6 25. Qd4 Bf5 26. Rd2 Bxd3 27. Qxd3 Rb4 28. Qa6 Qb7 29. Qxb7 Rxb7 30. Rc5 Kf8 31. Rd4 Re6 32. e3 Rb6 33. Ra5 Re7 34. Rda4 Rbb7 35. Rc5 Rec7 36. e4 Rb5 37. Rc2 dxe4 38. Rxe4 a5 39. Rec4 c5 40. R2c3 Ke7 41. a4 Rb8 42. Rxc5 Rxc5 43. Rxc5 Rxb3 44. Rxa5 g6 45. Rb5 Ra3 46. Rb4 h5 47. h4 Ra2 48. Kg2 Ra3 49. Kf1 Ra2 50. Ke1 Ke6 51. Rf4 Ke7 52. Kd1 f5 53. Kc1 Kd6 54. Kb1 Re2 55. Kc1 Ra2 56. Kd1 Kd5 57. Ke1 Ke5 58. Kf1 Kd5 59. Rb4 Ke6 60. Kg2 Ra3 61. Rb6+ Kf7 62. Ra6 Kg7 63. a5 Kf7 64. Ra7+ Kf8 65. a6 Ra2 66. Ra8+ Kg7 67. Kf3 Ra3+ 68. Kf4 Ra4+ 69. Ke5 Ra2 70. Ra7+ Kh6 71. Kf6 Ra5 72. Ra8 Kh7 73. Kg5 f4+ 74. Kxf4 Ra2 75. f3 Ra3 76. Ke4 Ra4+ 77. Kd5 Ra3 78. Ke4 Ra4+ 79. Ke3 Ra3+ 80. Kf2 Ra2+ 81. Kg1 Kg7 82. a7 Ra1+ 83. Kg2 Ra2+ 84. Kh3 Ra4 85. g4 hxg4+ 86. fxg4 Ra3+ 87. Kg2 Ra2+ 88. Kf3 Ra3+ 89. Ke4 Ra4+ 90. Kd5 Ra5+ 91. Kc6 Ra1 92. Rd8 Rxa7 93. Rd7+ Rxd7 94. Kxd7 g5 95. h5 Kf7 96. Kd6 1-0

[Event "ARG-ch Seniors 50"]
[Site "Buenos Aires"]
[Date "2021.12.11"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Moreno, Dario"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "1990"]
[BlackElo "1849"]
[PlyCount "48"]
[EventDate "2021.12.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bg5 Bxc3+ 7. bxc3 0-0 8. Nf3 d6 9. 0-0 Qe8 10. Bxf6 Rxf6 11. e3 f4 12. Ng5 h6 13. Ne4 Rg6 14. Rb1 Ne7 15. Bf3 Qf8 16. Kh1 Bh3 17. Rg1 Rb8 18. exf4 exf4 19. Bh5 Re6 20. Bg4 Bxg4 21. Qxg4 Rg6 22. Qxf4 Qxf4 23. gxf4 Rxg1+ 24. Kxg1 b6 1/2-1/2

[Event "ARG-ch Seniors 50"]
[Site "Buenos Aires"]
[Date "2021.12.11"]
[Round "7"]
[White "Pierucci, Fabian"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "1833"]
[BlackElo "1990"]
[PlyCount "22"]
[EventDate "2021.12.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. a4 Rb8 8. Nc3 0-0 9. 0-0 d6 10. h3 Na5 11. Ba2 c5 1/2-1/2

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "3"]
[White "Brito Vicente, De Paulo Alenca"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1986"]
[PlyCount "86"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e3 Nc6 5. Nb5 e5 6. dxe5 Qa5+ 7. Qd2 Qxd2+ 8. Kxd2 Ne4+ 9. Ke1 Kd8 10. f3 g5 11. fxe4 gxf4 12. exf4 Nb4 13. Bd3 c4 14. a3 cxd3 15. axb4 dxc2 16. Rc1 Bxb4+ 17. Kf2 dxe4 18. Rxc2 Bf5 19. Rc4 a5 20. Rd4+ Ke7 21. Ne2 Bc5 22. Rhd1 Rhd8 23. Ke1 Bxd4 24. Nexd4 Bg4 25. Rc1 Rac8 26. Rxc8 Rxc8 27. h3 Bd7 28. Nd6 Rc1+ 29. Kd2 Rg1 30. Ke3 Rxg2 31. Kxe4 Rxb2 32. f5 a4 33. f6+ Kf8 34. Nc4 Rb1 35. Kd5 Be6+ 36. Nxe6+ fxe6+ 37. Kxe6 Rc1 38. Nd6 a3 39. Kd7 Re1 40. e6 Rxe6 41. Kxe6 a2 42. f7 a1Q 43. Nxb7 Qa6+ 0-1

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "5"]
[White "Carrillo Parra, Miguel Alfredo"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2128"]
[BlackElo "1986"]
[PlyCount "79"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 a6 10. Na3 Be7 11. Be2 0-0 12. 0-0 f5 13. Nc4 Nd7 14. a5 Nf6 15. Nb6 Rb8 16. f4 e4 17. Be3 Nd7 18. Nc4 Bf6 19. Rb1 Qe7 20. b4 Rd8 21. Qd2 Nf8 22. Nb6 Bd7 23. c4 h6 24. Rfc1 g5 25. c5 dxc5 26. bxc5 Be8 27. Bc4 Bf7 28. d6 Qe8 29. fxg5 hxg5 30. Bxg5 Bxc4 31. Bxf6 Bd3 32. Qg5+ Qg6 33. Bxd8 Qxg5 34. Bxg5 Bxb1 35. Rxb1 Ne6 36. h4 Nxc5 37. d7 Nxd7 38. Nxd7 Rc8 39. Rxb7 Rc1+ 40. Bxc1 1-0

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Garzon, Enrique"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "1986"]
[BlackElo "2122"]
[PlyCount "100"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. d4 d5 7. cxd5 exd5 8. Nc3 0-0 9. Bg5 h6 10. Bxf6 Bxf6 11. e3 Re8 12. b4 c6 13. Rc1 Ba6 14. b5 cxb5 15. Qb3 b4 16. Nxd5 Bxf1 17. Bxf1 a5 18. Nc7 Rxe3 19. fxe3 Ra7 20. Nd5 Kh7 21. Qc2+ g6 22. Nxf6+ Qxf6 23. Bg2 Na6 24. Qc6 Qe7 25. Ne5 Rc7 26. Qxc7 Nxc7 27. Rc6 b5 28. Rb6 a4 29. Rb7 b3 30. axb3 axb3 31. Be4 b2 32. Kg2 Kg7 33. Bd3 Qa3 34. Rxc7 Qxd3 35. Nxd3 b1Q 36. Ne5 Qe4+ 37. Kf2 Qf5+ 38. Ke2 Qh5+ 39. Kd3 Qf5+ 40. Kc3 Qe4 41. Rxf7+ Kg8 42. Rd7 Qxe3+ 43. Kb4 Qe1+ 44. Kxb5 Qb1+ 45. Kc5 Qc2+ 46. Kd5 Qxh2 47. Rd8+ Kg7 48. Rd7+ Kg8 49. Rd8+ Kg7 50. Rd7+ Kg8 1/2-1/2

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "8"]
[White "Koch, Juan Enrique"]
[Black "Hakanson, Ian"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "1986"]
[BlackElo "1907"]
[PlyCount "51"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 0-0 6. Nc3 c5 7. cxd5 exd5 8. d4 Nc6 9. dxc5 Bxc5 10. Be2 Bg4 11. 0-0 Re8 12. Rc1 Bb6 13. Na4 Bc7 14. h3 Bxf3 15. Bxf3 Qd6 16. g3 Rad8 17. Nc5 Rb8 18. Bd4 Ne4 19. Nxe4 dxe4 20. Bg2 Rbd8 21. Bc5 Qg6 22. Qg4 Qxg4 23. hxg4 Re5 24. b4 Rg5 25. b5 b6 26. Bxb6 1-0

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Martinez, Isidoro"]
[Result "0-1"]
[ECO "A54"]
[WhiteElo "1986"]
[BlackElo "1981"]
[PlyCount "62"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. Nc3 e5 4. d4 Qe7 5. dxe5 dxe5 6. e4 c6 7. Be2 g6 8. 0-0 Bg7 9. h3 0-0 10. Be3 Re8 11. a3 Nbd7 12. b4 Nf8 13. Bc5 Qd7 14. Qc2 b6 15. Rad1 Qb7 16. Bd6 Nh5 17. c5 a5 18. Bc4 axb4 19. axb4 b5 20. Bb3 Be6 21. Ng5 Bxb3 22. Qxb3 h6 23. Nf3 Nf4 24. Ra1 g5 25. Rxa8 Qxa8 26. Kh2 N8g6 27. g3 Ne6 28. Qb2 Nd4 29. Nxd4 exd4 30. Ra1 dxc3 31. Qb1 c2 0-1

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "10"]
[White "Koch, Juan Enrique"]
[Black "Moreno, Dario"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "1986"]
[BlackElo "1812"]
[PlyCount "63"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Nc6 7. d5 Nb8 8. h3 e5 9. Be3 a5 10. 0-0 Na6 11. Rb1 b6 12. Nd2 Ne8 13. a3 f5 14. f3 f4 15. Bf2 g5 16. b4 axb4 17. axb4 h5 18. Nb5 Bd7 19. Qc2 Qf6 20. c5 bxc5 21. bxc5 Bxb5 22. Bxb5 Nxc5 23. Bc6 Rd8 24. Bxc5 dxc5 25. Qxc5 Qd6 26. Rfc1 g4 27. hxg4 hxg4 28. Bxe8 Rdxe8 29. Qxd6 cxd6 30. fxg4 Rc8 31. Nf3 Kf7 32. Ng5+ 1-0

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Munoz, Juan Alberto"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1986"]
[PlyCount "182"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. d4 d6 4. Nc3 Nf6 5. e4 0-0 6. Be2 c5 7. h3 cxd4 8. Nxd4 Nc6 9. Be3 Re8 10. 0-0 a6 11. Rc1 Bd7 12. Qd2 Rc8 13. Rfd1 Qc7 14. f3 Nh5 15. Nd5 Qd8 16. Nxc6 Bxc6 17. Nb6 Rb8 18. Bd4 Bxd4+ 19. Qxd4 Nf4 20. Bf1 Ne6 21. Qe3 Nc5 22. Nd5 Bxd5 23. cxd5 Qa5 24. a3 Qb6 25. b4 Nd7 26. Qxb6 Nxb6 27. Rc7 Na8 28. Rc3 Rec8 29. Rdc1 Rxc3 30. Rxc3 Kf8 31. a4 Ke8 32. a5 Kd8 33. b5 axb5 34. Bxb5 Nc7 35. Bf1 Ra8 36. Rb3 Kc8 37. Ra3 f6 38. Kf2 Na6 39. Bxa6 Rxa6 40. f4 Kd7 41. Rb3 Kc7 42. Rb5 b6 43. axb6+ Rxb6 44. Ra5 Kb7 45. g4 h6 46. h4 Rb4 47. Ke3 Kc8 48. g5 hxg5 49. hxg5 fxg5 50. fxg5 Kd7 51. Ra7+ Ke8 52. Ra8+ Kf7 53. Ra7 Rb3+ 54. Kd4 Rb1 55. e5 Rd1+ 56. Kc4 dxe5 57. Kc5 e4 58. d6 Rxd6 59. Ra3 Rd3 60. Ra4 e3 61. Re4 e6 62. Kc4 Rd5 63. Rxe3 Rxg5 64. Kd4 Kf6 65. Rf3+ Rf5 66. Rh3 e5+ 67. Ke4 Rf4+ 68. Ke3 Kf5 69. Rh8 g5 70. Rf8+ Kg4 71. Re8 e4 72. Rh8 Kg3 73. Rg8 g4 74. Rh8 Rf3+ 75. Kxe4 Rf1 76. Ra8 Kg2 77. Ra2+ Rf2 78. Ra1 g3 79. Ke3 Rf1 80. Ra8 Kg1 81. Rg8 g2 82. Ke2 Rf6 83. Ke1 Re6+ 84. Kd2 Re5 85. Rg7 Rf5 86. Ke2 Re5+ 87. Kf3 Rf5+ 88. Kg4 Ra5 89. Kh3 Ra3+ 90. Kg4 Rb3 91. Kf4 Kf1 0-1

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "11"]
[White "Nava, Pedro"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2029"]
[BlackElo "1986"]
[PlyCount "129"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nd4 4. Bc4 e6 5. c3 Nc6 6. e5 d5 7. exd6 Bxd6 8. 0-0 Nf6 9. d4 cxd4 10. cxd4 0-0 11. Nc3 a6 12. Bg5 b5 13. Bd3 Nb4 14. Bb1 Bb7 15. a3 Nbd5 16. Qd3 g6 17. Re1 Qc7 18. Nxd5 Nxd5 19. Ba2 Bf4 20. g3 Bxg5 21. Nxg5 Qe7 22. Ne4 Nf6 23. Nc5 Bd5 24. Bxd5 Nxd5 25. Rac1 Rfd8 26. Ne4 Rac8 27. Qf3 Kg7 28. h4 h6 29. Rc5 Nf6 30. Rec1 Nxe4 31. Qxe4 Rxc5 32. dxc5 Rc8 33. c6 Qd6 34. b4 f5 35. Qf3 e5 36. Qc3 Kf6 37. c7 Ke6 38. Qc6 Qxc6 39. Rxc6+ Kd5 40. Rxa6 Rxc7 41. Rxg6 Rc3 42. Rxh6 Rxa3 43. Rb6 Kc4 44. h5 Kxb4 45. h6 Ra7 46. Re6 e4 47. Kg2 Kc4 48. Rb6 b4 49. g4 fxg4 50. Kg3 b3 51. Kxg4 Kc3 52. Kf4 Re7 53. h7 Rxh7 54. Kxe4 b2 55. f4 Re7+ 56. Kd5 Kc2 57. f5 b1Q 58. Rxb1 Kxb1 59. Kd6 Rf7 60. Ke6 Rf8 61. f6 Kc2 62. Ke7 Ra8 63. f7 Kd3 64. f8Q Rxf8 65. Kxf8 1/2-1/2

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "7"]
[White "Pontes, Ailton"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1867"]
[BlackElo "1986"]
[PlyCount "100"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 d5 7. e5 Ng4 8. f4 Bc5 9. Qf3 Nf2 10. Be3 Bxe3 11. Qxe3 Nxh1 12. 0-0-0 0-0 13. Bd3 d4 14. Qg1 Qh4 15. g3 Nxg3 16. hxg3 Qh3 17. Ne4 Bg4 18. Ng5 Qh5 19. Bxh7+ Kh8 20. Rd2 f6 21. Rh2 fxg5 22. Bg6 Qh6 23. Rxh6+ gxh6 24. Qxd4 Rad8 25. Qg1 Rd1+ 26. Qxd1 Bxd1 27. Kxd1 gxf4 28. gxf4 Kg7 29. f5 Rd8+ 30. Ke2 Rd5 31. e6 Kf6 32. c4 Rd4 33. b3 Rh4 34. Kf3 Rh2 35. Ke4 Rxa2 36. Kd4 Rb2 37. Kc3 Rh2 38. Kd4 a5 39. Kc5 Rh3 40. Kxc6 Rxb3 41. Kxc7 Rc3 42. Kd7 Rd3+ 43. Ke8 a4 44. Kf8 Re3 45. Be8 a3 46. c5 Kxf5 47. e7 Kf6 48. Bf7 Rxe7 49. Ba2 Ra7 50. c6 Ra8# 0-1

[Event "Rio Grande Domingo op 20th"]
[Site "Lichess.org INT"]
[Date "2020.07.05"]
[Round "9"]
[White "Quiroga, Luis Alberto"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "1842"]
[BlackElo "1986"]
[PlyCount "63"]
[EventDate "2020.07.05"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "ARG"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 11. h3 Re8 12. Qf3 h6 13. Bh4 Rb8 14. Rfe1 Be6 15. a3 Bd6 16. Rab1 c5 17. Bb5 Rf8 18. Bc6 Qc7 19. Bxf6 Qxc6 20. Be5 Bxe5 21. Rxe5 d4 22. Qxc6 dxc3 23. Qxc5 cxb2 24. Qc3 Rfc8 25. Rc5 Rxc5 26. Qxc5 Ba2 27. Rxb2 Rxb2 28. Qxa7 Rxc2 29. Qa8+ Kh7 30. Qe4+ g6 31. Qxc2 Be6 32. a4 1-0

[Event "ARG-ch sf 95th"]
[Site "Buenos Aires"]
[Date "2020.02.28"]
[Round "7"]
[White "Blit, Jacques"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2343"]
[BlackElo "2000"]
[PlyCount "85"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 d6 6. c3 0-0 7. b4 Bg4 8. h3 Bh5 9. Nbd2 a6 10. a3 d5 11. Bb3 dxe4 12. dxe4 Bg6 13. Qe2 Qc8 14. Nh4 Nh5 15. Nxg6 hxg6 16. Nf3 Nf4 17. Bxf4 exf4 18. Bd5 Nd8 19. Ne5 Kh7 20. Qf3 c6 21. Bb3 Ne6 22. Qg4 Qc7 23. Nxf7 Rxf7 24. Bxe6 Rff8 25. Rad1 Rad8 26. Rxd8 Rxd8 27. Bf7 Qd6 28. e5 Qxe5 29. Bxg6+ Kg8 30. Bf5 g5 31. Bc2 Rd6 32. Qh5 Qg7 33. Re1 Kf8 34. Bb3 Rh6 35. Qg4 Rd6 36. Qf5+ Bf6 37. Re2 b6 38. a4 b5 39. a5 g4 40. hxg4 Qg5 41. Qe4 Kg7 42. Qe8 Kh6 43. Qf8+ 1-0

[Event "ARG-ch sf 95th"]
[Site "Buenos Aires"]
[Date "2020.02.27"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Cimer, Emanuel"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2000"]
[BlackElo "2237"]
[PlyCount "67"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 Nbd7 7. e5 Ne8 8. e6 fxe6 9. Ng5 Ndf6 10. h4 d5 11. h5 Nd6 12. hxg6 hxg6 13. Qc2 Nde4 14. Ncxe4 dxe4 15. Be3 c6 16. 0-0-0 Qa5 17. Kb1 e5 18. d5 cxd5 19. cxd5 Bd7 20. Qc3 Qxc3 21. bxc3 Rfc8 22. c4 b6 23. d6 e6 24. Rh4 Rd8 25. Nxe4 Nxe4 26. Rxe4 Bf6 27. Rg4 Kg7 28. Bd3 Be8 29. Bc2 Bf7 30. a4 Rac8 31. Bc1 Rc6 32. Ba3 g5 33. Rh1 Bg8 34. Rc1 1/2-1/2

[Event "ARG-ch sf 95th"]
[Site "Buenos Aires"]
[Date "2020.02.24"]
[Round "3"]
[White "Falcon, Benjamin"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2249"]
[BlackElo "2000"]
[PlyCount "71"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Nf6 6. Re1 0-0 7. h3 Qc7 8. d4 d5 9. exd5 Nxd5 10. dxc5 Rd8 11. Qa4 Ne5 12. Nxe5 Bxe5 13. Nd2 Nxc3 14. bxc3 Bxc3 15. Nf3 Bxa1 16. Bf4 Qxc5 17. Rxa1 a6 18. Be2 b5 19. Qa5 Be6 20. Be3 Qc2 21. Re1 Qxa2 22. Qb4 Re8 23. Qh4 f6 24. Bd4 Bf5 25. g4 Be4 26. g5 e5 27. gxf6 Bxf3 28. Bxf3 exd4 29. Re7 Rxe7 30. fxe7 Qb1+ 31. Kg2 Re8 32. Bd5+ Kg7 33. Qxd4+ Kh6 34. Qf4+ g5 35. Qf8+ Kh5 36. Bf3+ 1-0

[Event "ARG-ch sf 95th"]
[Site "Buenos Aires"]
[Date "2020.02.22"]
[Round "1"]
[White "Munoz, Francisco Javier"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2357"]
[BlackElo "2000"]
[PlyCount "85"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 d6 8. a3 Na5 9. Ba2 c5 10. Nc3 0-0 11. b4 Nb7 12. h3 Be6 13. Nd5 Nxd5 14. exd5 Bd7 15. Re1 Kh8 16. c3 f5 17. d4 exd4 18. cxd4 c4 19. Bb1 Bf6 20. Ra2 Re8 21. Rxe8+ Qxe8 22. Re2 Qh5 23. Qe1 Rg8 24. Bb2 Nd8 25. Qd2 g5 26. Ne5 Bc8 27. Re1 Qh6 28. Qe2 g4 29. hxg4 fxg4 30. Qe4 Qg7 31. g3 Nf7 32. Kg2 Ng5 33. Qf4 Nh3 34. Qe3 Rf8 35. f4 gxf3+ 36. Nxf3 Bg4 37. Rh1 Bxf3+ 38. Qxf3 Ng5 39. Qg4 Bd8 40. Bc1 Qf6 41. Bxg5 Qxg5 42. Rxh7+ Kg8 43. Qe6+ 1-0

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.15"]
[Round "6.9"]
[White "Koch, Juan Enrique"]
[Black "Zito, Alberto"]
[Result "1-0"]
[ECO "E09"]
[WhiteElo "2019"]
[BlackElo "1590"]
[PlyCount "51"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 Nf6 3. g3 Be7 4. Bg2 0-0 5. 0-0 c6 6. d4 d5 7. Nbd2 Nbd7 8. Qc2 h6 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nf6 12. Qc2 Bd7 13. Ne5 Be8 14. Rd1 Nd7 15. Bxc6 Nxe5 16. dxe5 Qc7 17. Bxe8 Rfxe8 18. Qe4 Rac8 19. b3 b5 20. cxb5 Qb6 21. Be3 Qxb5 22. Bxa7 Ba3 23. Rab1 Rc7 24. Be3 Rec8 25. h4 Rc2 26. Rd8+ 1-0

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.15"]
[Round "5.7"]
[White "Ryhr, Silvio"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1926"]
[BlackElo "2019"]
[PlyCount "51"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. Nbd2 Nh5 5. Be5 Nf6 6. Bg3 d6 7. e4 0-0 8. Be2 c5 9. c3 cxd4 10. Nxd4 Nc6 11. Nc2 Be6 12. 0-0 Rc8 13. Kh1 d5 14. e5 Nd7 15. f4 Na5 16. Bf2 Nc4 17. Rb1 Ndb6 18. Nf3 Bf5 19. Bd3 Bg4 20. h3 Bxf3 21. Qxf3 e6 22. Qe2 Nd7 23. g4 Re8 24. g5 Bf8 25. h4 Bc5 26. Nd4 1-0

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.14"]
[Round "3.3"]
[White "Garbarino, Rodolfo"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2341"]
[BlackElo "2019"]
[PlyCount "28"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. b3 c5 3. Bb2 Nc6 4. Nf3 d6 5. Nc3 Nf6 6. d4 cxd4 7. Nxd4 e5 8. Nxc6 bxc6 9. f4 Be7 10. Qf3 0-0 11. h3 exf4 12. 0-0-0 Qa5 13. Qxf4 Re8 14. Kb1 Be6 1-0

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.14"]
[Round "4.5"]
[White "Koch, Juan Enrique"]
[Black "Pierucci, Fabian"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2019"]
[BlackElo "1911"]
[PlyCount "35"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 c5 7. Bb2 Nc6 8. e3 b6 9. d3 Bb7 10. Nc3 Rb8 11. Qe2 a6 12. Rfd1 d4 13. exd4 Nxd4 14. Nxd4 Bxg2 15. Kxg2 cxd4 16. Ne4 Qd7 17. Nxf6+ Bxf6 18. Qe4 1/2-1/2

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.13"]
[Round "2.6"]
[White "Koch, Juan Enrique"]
[Black "Nieto, Sebastian"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2019"]
[BlackElo "2088"]
[PlyCount "70"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Nc6 6. e4 Bg7 7. Be3 0-0 8. Be2 d6 9. 0-0 a6 10. h3 e6 11. Qd2 Qc7 12. Rac1 Rd8 13. Rfd1 Qe7 14. Nxc6 bxc6 15. e5 Ne8 16. exd6 Rxd6 17. Qc2 e5 18. Rxd6 Qxd6 19. Rd1 Qc7 20. Bc5 f5 21. Qd2 Be6 22. Na4 Qf7 23. b3 Bf6 24. Qa5 Qb7 25. Bb6 Ng7 26. Bd8 Qf7 27. Bxf6 Qxf6 28. Rd6 e4 29. Qc3 Qxc3 30. Nxc3 Rc8 31. c5 a5 32. Ba6 Rc7 33. Rd8+ Kf7 34. Ra8 Kf6 35. Rf8+ Ke5 1/2-1/2

[Event "ARG-ch Seniors 50"]
[Site "Coronel Pringles"]
[Date "2019.12.13"]
[Round "1.10"]
[White "Tkalecz, David"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1712"]
[BlackElo "2019"]
[PlyCount "104"]
[EventDate "2019.12.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 c5 4. c3 b6 5. Nd2 Bb7 6. Ngf3 Be7 7. Bd3 Nc6 8. 0-0 0-0 9. h3 d6 10. e4 cxd4 11. cxd4 Nb4 12. Bb1 Ba6 13. Re1 Nd3 14. Bxd3 Bxd3 15. Qb3 Ba6 16. Rac1 Qd7 17. Qe3 Rfc8 18. Nb3 Bb7 19. Nfd2 Rxc1 20. Rxc1 Rc8 21. f3 Rxc1+ 22. Nxc1 e5 23. Bg3 exd4 24. Qxd4 d5 25. Ncb3 dxe4 26. Qxd7 Nxd7 27. Nxe4 f5 28. Nd6 Bxd6 29. Bxd6 Bd5 30. Nc1 Kf7 31. a3 Ke6 32. Bb4 Ne5 33. Ne2 Nc6 34. Nf4+ Ke5 35. Nxd5 Kxd5 36. Bc3 g6 37. Kf2 Kc4 38. Ke3 Ne7 39. Kd2 Nd5 40. Be5 a5 41. Bg7 Nf4 42. g3 Nxh3 43. Ke3 Ng5 44. Bd4 b5 45. Bb6 a4 46. Ba5 Ne6 47. Bc3 Nc7 48. Kd2 Na6 49. Be5 h5 50. Bd6 g5 51. Ke2 Kb3 52. Be5 Nc5 0-1

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.28"]
[Round "7.8"]
[White "Koch, Juan Enrique"]
[Black "Zapata, Elias David"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2012"]
[PlyCount "93"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. Nc3 d5 9. cxd5 Nxd5 10. Qc2 Nb4 11. Qb1 Nd7 12. a3 Nc6 13. Rd1 a6 14. e3 Nf6 15. d4 cxd4 16. Ne2 Qc7 17. Nexd4 Nxd4 18. Bxd4 Be4 19. Qb2 Qc2 20. Rac1 Qxb2 21. Bxb2 Rfd8 22. Rxd8+ Rxd8 23. Nd4 e5 24. Nc6 Bxc6 25. Rxc6 Rd1+ 26. Bf1 Ne4 27. Rc8+ Bf8 28. Kg2 Rd2 29. Bxe5 Rxf2+ 30. Kg1 Rf5 31. Bd4 Nd2 32. Be2 Nxb3 33. Bxb6 Rf6 34. Rb8 Rc6 35. Bxa6 Nc5 36. Bb5 Nd7 37. Bxc6 Nxb8 38. Bb5 Bd6 39. a4 g5 40. a5 Kg7 41. a6 Nxa6 42. Bxa6 f5 43. Bd4+ Kg6 44. Bd3 h5 45. Kg2 g4 46. h4 Kf7 47. Bxf5 1-0

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.26"]
[Round "6.3"]
[White "Barrionuevo, Pablo"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2230"]
[BlackElo "2012"]
[PlyCount "83"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Nc3 Nbd7 6. Qc2 h6 7. Bh4 0-0 8. 0-0-0 c6 9. e4 Nxe4 10. Bxe7 Qxe7 11. Nxe4 dxe4 12. Qxe4 Nf6 13. Qh4 Re8 14. Bd3 b5 15. c5 Nd5 16. Qg3 Bb7 17. Rhe1 Qf6 18. Re4 Rad8 19. h4 Ne7 20. Qc7 Bc8 21. Bc2 Nd5 22. Qg3 Ne7 23. Ne5 Rd5 24. Rf4 Nf5 25. Qd3 Rxe5 26. dxe5 Qxe5 27. Qe4 Qxe4 28. Bxe4 Ne7 29. Rd6 Nd5 30. Bxd5 cxd5 31. Rb4 a6 32. a4 bxa4 33. Rb8 Kf8 34. Kd2 Ke7 35. Kc3 a5 36. Ra8 e5 37. Rxd5 Ke6 38. Rd6+ Kf5 39. c6 e4 40. Kd4 e3 41. fxe3 Re4+ 42. Kd3 1-0

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.21"]
[Round "5.6"]
[White "Koch, Juan Enrique"]
[Black "Uncal, Jose"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2012"]
[BlackElo "1894"]
[PlyCount "76"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 c6 5. 0-0 Be7 6. d4 Nbd7 7. Nc3 0-0 8. Nd2 e5 9. cxd5 exd4 10. dxc6 dxc3 11. cxd7 cxb2 12. Bxb2 Bxd7 13. Ne4 Nxe4 14. Bxe4 Bh3 15. Qxd8 Raxd8 16. Rfd1 b6 17. Bd5 Be6 18. Bxe6 fxe6 19. Bd4 Rd7 20. Be3 Rfd8 21. Rxd7 Rxd7 22. Rc1 Kf7 23. Kg2 b5 24. Rc6 a5 25. Ra6 Bd8 26. Kf3 Rb7 27. Bd4 a4 28. h4 Bf6 29. Bxf6 Kxf6 30. Ke3 Rc7 31. Rb6 Rc2 32. Rxb5 Rxa2 33. Ra5 a3 34. g4 Ra1 35. h5 a2 36. f3 h6 37. Ke4 g6 38. hxg6 Kxg6 1-0

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.14"]
[Round "3.1"]
[White "Varela, Gaston"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2392"]
[BlackElo "2012"]
[PlyCount "17"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. d3 0-0 6. Nbd2 a5 7. e4 a4 8. a3 c5 9. Re1 1/2-1/2

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.12"]
[Round "2.8"]
[White "Koch, Juan Enrique"]
[Black "Migliavacca, Carlos"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2012"]
[BlackElo "1785"]
[PlyCount "26"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. e3 e6 4. Bd3 Be7 5. 0-0 0-0 6. Nbd2 b6 7. b3 c5 8. Bb2 Ba6 9. c4 Nc6 10. a3 Rc8 11. Rc1 Qd6 12. Qe2 Qb8 13. Rfd1 Na5 1-0

[Event "Buenos Aires Faogba 36th"]
[Site "Buenos Aires"]
[Date "2019.11.07"]
[Round "1.12"]
[White "Boh, Luis Maximo"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "E48"]
[WhiteElo "1589"]
[BlackElo "2012"]
[PlyCount "32"]
[EventDate "2019.11.07"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nge2 cxd4 7. exd4 d5 8. Bg5 dxc4 9. Bxc4 0-0 10. 0-0 a6 11. a3 Be7 12. Qd3 b5 13. Ba2 Bb7 14. Rfd1 b4 15. Na4 Qa5 16. Bb1 Qxg5 0-1

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.13"]
[Round "8"]
[White "Axarlian, Carlos"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2107"]
[BlackElo "2006"]
[PlyCount "87"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 c4 10. b4 Qc7 11. Nb2 Be7 12. Be2 Nf8 13. 0-0 Ng6 14. Qd2 b6 15. Nd1 Bd7 16. a4 a6 17. Nf2 f5 18. Kh1 Nd8 19. Bd1 Nf7 20. Bc2 0-0-0 21. Nd1 Rdg8 22. Nb2 Nf8 23. Nxc4 g5 24. Nd6+ Nxd6 25. exd6 Bxd6 26. Nxg5 Bc6 27. Bd3 Bb7 28. Qe2 h6 29. Nf3 Bxf4 30. Bxf4 Qxf4 31. Ne5 Qh4 32. Bxa6 Qe4 33. Bxb7+ Kxb7 34. Qd2 Rg7 35. Rf4 Rxg2 36. Qxg2 Qxf4 37. Qg7+ Ka8 38. Qxh8 Qe4+ 39. Kg1 Qe3+ 40. Kf1 Qh3+ 41. Ke2 Qg2+ 42. Kd3 Qe4+ 43. Kd2 Qg2+ 44. Kc1 1-0

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.12"]
[Round "7"]
[White "Koch, Juan Enrique"]
[Black "Barrionuevo, Pablo"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2006"]
[BlackElo "2245"]
[PlyCount "89"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. Nc3 c5 4. g3 Nc6 5. Bg2 d6 6. 0-0 Bf5 7. d3 Qd7 8. Nd5 Rb8 9. Qa4 Nf6 10. Rb1 Nxd5 11. cxd5 Nb4 12. Qb3 0-0 13. a3 Na6 14. e4 Bg4 15. Bd2 Rfc8 16. Bc3 c4 17. dxc4 Nc5 18. Qc2 Bxc3 19. Qxc3 Nxe4 20. Qd4 Nc5 21. b4 Na4 22. Rbc1 Nb6 23. c5 dxc5 24. bxc5 Bxf3 25. Bxf3 Qa4 26. Qb4 Qxb4 27. axb4 Nd7 28. Rfe1 Kf8 29. Ra1 a6 30. Ra3 Nf6 31. g4 h6 32. h4 Rd8 33. Rd3 Ne8 34. Kh2 Nc7 35. Kg3 Rd7 36. Red1 Nb5 37. Be4 Rc7 38. f4 a5 39. d6 exd6 40. cxd6 Rc4 41. d7 Rd8 42. Bxb7 axb4 43. Ba6 Rc5 44. Bxb5 Rxb5 45. Rd5 1/2-1/2

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.11"]
[Round "6"]
[White "Lopez, Cesar1111"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1661"]
[BlackElo "2006"]
[PlyCount "106"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. e3 Bg7 4. Be2 d6 5. c4 0-0 6. Nc3 Nbd7 7. Bg3 e5 8. d5 a5 9. f3 Nc5 10. e4 Nh5 11. Bf2 f5 12. exf5 gxf5 13. g3 Nf6 14. Be3 f4 15. Bf2 e4 16. Bxc5 dxc5 17. Nxe4 Nxe4 18. fxe4 Bxb2 19. Nf3 Bc3+ 20. Kf2 fxg3+ 21. hxg3 Bxa1 22. Qxa1 Bg4 23. Rh4 Bxf3 24. Bxf3 Qf6 25. Qxf6 Rxf6 26. e5 Rf5 27. e6 Raf8 28. e7 Rxf3+ 29. Ke2 Rf2+ 30. Ke1 Rf1+ 31. Ke2 R8f2+ 32. Ke3 Kf7 33. Rxh7+ Ke8 34. g4 Rxa2 35. g5 Rf7 36. Rh8+ Kxe7 37. g6 Rg7 38. Rc8 Kf6 39. Ke4 Kxg6 40. Rb8 Re2+ 41. Kd3 Rb2 42. Kc3 Rb4 43. Ra8 b6 44. Ra7 Kf6 45. Ra8 Rg3+ 46. Kd2 Rxc4 47. Rc8 Rh4 48. Ke2 Rh2+ 49. Kf1 Ra3 50. Kg1 Rd2 51. Rf8+ Ke7 52. Rf1 Raa2 53. Re1+ Kd6 0-1

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.10"]
[Round "5"]
[White "Koch, Juan Enrique"]
[Black "Galli, Gabriel"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2006"]
[BlackElo "1904"]
[PlyCount "58"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c6 5. e4 0-0 6. Nf3 d5 7. cxd5 cxd5 8. e5 Ne4 9. Qb3 e6 10. d4 Nc6 11. 0-0 f6 12. Be3 Nxc3 13. Qxc3 fxe5 14. Qd2 exd4 15. Nxd4 Nxd4 16. Bxd4 Bxd4 17. Qxd4 Qd6 18. Rfe1 Bd7 19. Rac1 b6 20. h4 Rac8 21. h5 Rxc1 22. Rxc1 Rf5 23. hxg6 hxg6 24. Be4 Qe5 25. Qxe5 Rxe5 26. Bxg6 Re2 27. Rc7 Bb5 28. Rxa7 d4 29. a4 Bc6 1-0

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.09"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Fiorito, Joaquin"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2006"]
[BlackElo "1875"]
[PlyCount "71"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. 0-0 0-0 6. d4 dxc4 7. Qc2 b5 8. a4 b4 9. Ne5 Qxd4 10. Bxa8 Qxe5 11. Bf4 Qh5 12. Bf3 Ng4 13. Bxg4 Qxg4 14. f3 Bc5+ 15. Kg2 Qh5 16. g4 Qd5 17. Nd2 Ba6 18. Ne4 f5 19. Nxc5 Qxc5 20. gxf5 exf5 21. Rad1 c3 22. Rfe1 Qc4 23. e3 h6 24. Rd4 Qc6 25. Rxb4 Qg6+ 26. Kf2 Nc6 27. Qxc3 Nxb4 28. Qxb4 Qc6 29. Qc3 Qxc3 30. bxc3 c6 31. Rd1 Rf7 32. Rd6 Bb7 33. h4 Kh7 34. h5 Re7 35. Ke2 Kg8 36. Kf2 1/2-1/2

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.08"]
[Round "3"]
[White "Pereyra, Jonathan Leonel"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1899"]
[BlackElo "2006"]
[PlyCount "91"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. Nc3 e6 5. Nb5 Na6 6. Nf3 c4 7. c3 Qb6 8. a4 Bd7 9. b3 cxb3 10. Qxb3 Ne4 11. Ne5 g5 12. Nxd7 Kxd7 13. Be5 f6 14. f3 Nec5 15. dxc5 Nxc5 16. Qb2 fxe5 17. c4 Qa5+ 18. Kf2 Bg7 19. cxd5 exd5 20. Rd1 Rhd8 21. Rxd5+ Ke7 22. Rxe5+ Bxe5 23. Qxe5+ Ne6 24. Bc4 Qb6 25. Nd4 Rxd4 26. exd4 Qxd4+ 27. Qxd4 Nxd4 28. Re1+ Kd6 29. Re4 Nc6 30. h4 Ne5 31. hxg5 Rc8 32. Rd4+ Kc5 33. Rd5+ Kxc4 34. Rxe5 Rc7 35. f4 Kd4 36. Kf3 a6 37. Re4+ Kd5 38. f5 b5 39. axb5 axb5 40. f6 Kd6 41. Kf4 Rb7 42. Kf5 b4 43. Re6+ Kd5 44. Re7 Rb8 45. f7 Rf8 46. Kf6 1-0

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.07"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Silva, Lucas"]
[Result "0-1"]
[ECO "A81"]
[WhiteElo "2006"]
[BlackElo "2116"]
[PlyCount "70"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. h4 d6 5. Nh3 Bg7 6. Nc3 c6 7. d5 cxd5 8. Nxd5 Nxd5 9. Bxd5 e6 10. Bg2 Nc6 11. Nf4 0-0 12. c3 Qc7 13. 0-0 Bd7 14. e4 fxe4 15. Bxe4 Rae8 16. Be3 d5 17. Bg2 Ne5 18. Bd4 Bh6 19. Bxe5 Qxe5 20. Nd3 Qc7 21. f4 Bb5 22. Re1 Bxd3 23. Qxd3 Qb6+ 24. Kh1 Qxb2 25. Rab1 Qf2 26. Re2 Qc5 27. Rxb7 Bg7 28. Qa6 Qxc3 29. Rxe6 Qxg3 30. Rb3 Qxf4 31. Rxe8 Rxe8 32. Bxd5+ Kh8 33. Qc4 Bd4 34. Rf3 Re1+ 35. Kg2 Rg1+ 0-1

[Event "Buenos Aires ProAm op 26th"]
[Site "Buenos Aires"]
[Date "2019.10.06"]
[Round "1"]
[White "Payba, Joaquin"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1288"]
[BlackElo "2006"]
[PlyCount "78"]
[EventDate "2019.10.06"]
[EventType "team-swiss"]
[EventRounds "8"]
[EventCountry "ARG"]
[SourceTitle "CBM 192 Extra"]
[Source "Chessbase"]
[SourceDate "2019.11.06"]
[SourceVersion "1"]
[SourceVersionDate "2019.11.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. Nc3 d6 6. h3 Be7 7. 0-0 Na5 8. Bb3 0-0 9. Be3 a6 10. Qd2 Nxb3 11. axb3 Nh7 12. Nd5 Bg5 13. Nxg5 hxg5 14. Qe2 Be6 15. c4 c5 16. f3 Bxd5 17. exd5 f5 18. g4 f4 19. Bd2 a5 20. Qd1 b6 21. Kf2 Kf7 22. Qc2 Rh8 23. Rfe1 Nf8 24. Rh1 Ng6 25. Bc3 Rh6 26. Bd2 Qh8 27. Kg2 Re8 28. Rh2 Nh4+ 29. Kf2 Nxf3 30. Kxf3 Rxh3+ 31. Rxh3 Qxh3+ 32. Kf2 Qg3+ 33. Kf1 Qf3+ 34. Ke1 Rh8 35. Bc1 Rh1+ 36. Kd2 Qe3+ 37. Kc3 Qd4+ 38. Kd2 Rh2+ 39. Kd1 Qg1# 0-1

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.06"]
[Round "8"]
[White "Aguero Arce, Matias"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2190"]
[BlackElo "1957"]
[PlyCount "57"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. Bg5 h6 7. Bh4 g5 8. Bg3 Ne4 9. Rc1 h5 10. cxd5 exd5 11. h4 Bxc3+ 12. Rxc3 Nxc3 13. bxc3 g4 14. Nd2 Bf5 15. e3 a6 16. c4 0-0 17. Be2 b5 18. cxb5 axb5 19. Qxb5 Qd7 20. 0-0 Rfb8 21. Qc5 Rxa2 22. Rd1 Bc2 23. Rc1 Ba4 24. Ne4 dxe4 25. Qg5+ Kf8 26. Qh6+ Ke7 27. Qg5+ Kf8 28. Qh6+ Ke7 29. Qg5+ 1/2-1/2

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.05"]
[Round "7"]
[White "Villanueva, Guillermo"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2064"]
[BlackElo "1957"]
[PlyCount "136"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[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. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 h6 9. c4 Ba6 10. Rh3 Nb6 11. b3 Qe6 12. Bb2 Bb4+ 13. Nd2 0-0-0 14. 0-0-0 Rhe8 15. Qf3 Bb7 16. Bd3 Bxd2+ 17. Rxd2 c5 18. Qf4 g6 19. Re3 Qe7 20. Bf1 g5 21. hxg5 Qxg5 22. Qh2 Rg8 23. g3 d5 24. exd6 Rxd6 25. Rxd6 cxd6 26. f4 Qg6 27. Bd3 f5 28. Qh3 Rf8 29. Re7 Kb8 30. Qh4 Nc8 31. Rg7 Qe6 32. Qh2 Qe1+ 33. Kc2 Be4 34. Qd2 Qh1 35. Bxe4 Qxe4+ 36. Qd3 Qg2+ 37. Kb1 Qg1+ 38. Bc1 Qg2 39. Qd2 Qe4+ 40. Qc2 Qf3 41. a3 Re8 42. Bb2 Re1+ 43. Bc1 Rg1 44. Ka2 Rg2 45. Bd2 Qe2 46. Kb1 Qxd2 47. Qxd2 Rxd2 48. Rf7 Rg2 49. Rxf5 Rxg3 50. Kc2 Rf3 51. b4 h5 52. Rxh5 Rxf4 53. Kb3 cxb4 54. axb4 Nb6 55. c5 Rf3+ 56. Ka2 dxc5 57. bxc5 Nc8 58. Kb2 Ne7 59. Kc2 Nc6 60. Rh8+ Kb7 61. Rh7+ Ka6 62. Rh5 Re3 63. Rh1 Kb5 64. Kd2 Re5 65. Kd3 Rxc5 66. Rb1+ Nb4+ 67. Kd4 Rc4+ 68. Ke5 a5 0-1

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.04"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Fiorito, Joaquin"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "1957"]
[BlackElo "1747"]
[PlyCount "60"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. e3 Bf5 4. c4 c6 5. Nc3 e6 6. Bd2 Be7 7. h3 Ne4 8. c5 Nd7 9. b4 b6 10. Be2 bxc5 11. bxc5 e5 12. 0-0 0-0 13. Nxe4 Bxe4 14. Qa4 Bxf3 15. Bxf3 e4 16. Be2 Nb8 17. Rab1 Qd7 18. Rb2 Qe6 19. Rfb1 f5 20. Rb7 a6 21. R1b6 Rc8 22. Qb3 Nd7 23. Rxd7 Qxd7 24. Bxa6 Rc7 25. Bb7 Rb8 26. Bxc6 Rxb6 27. Bxd5+ Kf8 28. cxb6 Rc8 29. Be6 Qb7 30. Bxc8 Qxc8 1-0

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.03"]
[Round "5"]
[White "Torella, Rodolfo"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2032"]
[BlackElo "1957"]
[PlyCount "93"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bc5 7. Ne2 Nc6 8. Rb1 0-0 9. 0-0 Bb6 10. d3 Be6 11. a4 Qd7 12. Ba3 Rfe8 13. c4 Rab8 14. Qd2 Bg4 15. Rfe1 Qf5 16. c5 Ba5 17. c3 Red8 18. Rbd1 Qh5 19. Bb4 Bxb4 20. Bxc6 Bxc3 21. Qxc3 bxc6 22. Rd2 Bf3 23. d4 f6 24. dxe5 fxe5 25. Rxd8+ Rxd8 26. Qe3 Rf8 27. h4 Qf5 28. Kh2 Bd5 29. f4 exf4 30. Qxf4 Qd3 31. Qd4 Qf3 32. Qg1 h5 33. Nf4 Rb8 34. Qg2 Qxg2+ 35. Nxg2 Rb2 36. Rg1 Ra2 37. Kh3 Be6+ 38. Kh2 Rxa4 39. Re1 Bg4 40. Nf4 Ra2+ 41. Kg1 a5 42. Re7 Rc2 43. Rxc7 Rxc5 44. Kf2 a4 45. Ra7 Bd1 46. Ne6 Bb3 47. Nxc5 1-0

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.02"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Mansilla, Martin"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "1957"]
[BlackElo "2149"]
[PlyCount "58"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. b4 f6 4. e3 e5 5. Ba3 Bg4 6. Qa4+ c6 7. Qc2 Na6 8. c5 Qe7 9. Bd3 Nh6 10. h3 Bh5 11. Nh4 Rd8 12. 0-0 g6 13. b5 Nb8 14. g3 Bg7 15. e4 0-0 16. f3 f5 17. Ng2 fxe4 18. Bxe4 g5 19. Bxh7+ Kh8 20. Be4 Qd7 21. Kh2 g4 22. Nh4 gxf3 23. g4 Nxg4+ 24. hxg4 Qxg4 25. Bxf3 Qxh4+ 26. Kg2 Bxf3+ 27. Rxf3 Rxf3 28. Kxf3 Rf8+ 29. Ke2 Qf2+ 0-1

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.04.01"]
[Round "3"]
[White "Zapata Charles, Santiago"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2303"]
[BlackElo "1957"]
[PlyCount "121"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Be7 5. 0-0 0-0 6. Re1 d6 7. a4 Na5 8. Ba2 c5 9. c3 Nc6 10. Nbd2 Be6 11. Bxe6 fxe6 12. Nc4 b6 13. h3 Kh8 14. Bd2 Ng8 15. b4 cxb4 16. cxb4 Nd4 17. Nxd4 exd4 18. Qg4 e5 19. b5 Nf6 20. Qe6 Nd7 21. Nxd6 Bxd6 22. Qxd6 Nc5 23. Qxd8 Rfxd8 24. Ra3 a6 25. bxa6 Rxa6 26. Rea1 Rda8 27. Bb4 Nb7 28. Rc1 Kg8 29. Rc6 Nc5 30. Bxc5 bxc5 31. Rxc5 Rxa4 32. Rxa4 Rxa4 33. Kf1 Ra1+ 34. Ke2 Ra2+ 35. Kf3 Rd2 36. Rxe5 Rxd3+ 37. Ke2 Ra3 38. Rf5 g6 39. Rf3 Ra7 40. Kd3 Rd7 41. e5 Kg7 42. Ke4 Ra7 43. Kxd4 Ra4+ 44. Kd5 Ra5+ 45. Kd6 Ra6+ 46. Kd7 Ra7+ 47. Kc6 Ra6+ 48. Kb5 Re6 49. Re3 g5 50. Kc5 Kf7 51. Kd5 Ra6 52. Rc3 Ra1 53. Rc7+ Ke8 54. Ke6 Kf8 55. f3 Ra6+ 56. Kf5 h6 57. g3 Ra3 58. f4 gxf4 59. Kf6 Kg8 60. Rc8+ Kh7 61. gxf4 1-0

[Event "ARG-ch sf 94th"]
[Site "Buenos Aires"]
[Date "2019.03.31"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Montes, Francisco"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "1957"]
[BlackElo "1840"]
[PlyCount "73"]
[EventDate "2019.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. Qc2 b6 8. Bg5 Bb7 9. Bxf6 Bxf6 10. Ng5 Bxg5 11. Bxb7 Nd7 12. Bxa8 Qxa8 13. Qxc4 c5 14. Nc3 cxd4 15. Qxd4 Rd8 16. Rfd1 Bf6 17. Qe4 Qc8 18. Qa4 a5 19. Rac1 Nc5 20. Rxd8+ Qxd8 21. Qc4 Qd2 22. Rd1 Qxb2 23. Na4 Qb4 24. Qxb4 axb4 25. Nxb6 Ne4 26. Nd7 Be7 27. Ne5 Nc3 28. Rd2 f6 29. Nc6 Bc5 30. Rc2 Na4 31. e3 Kf7 32. Kf1 Ke8 33. Ke2 Kd7 34. Nd4 Nc3+ 35. Kd3 Be7 36. Kc4 Nb1 37. Nb5 1-0

[Event "Buenos Aires La Porta Cup"]
[Site "Buenos Aires"]
[Date "2019.03.29"]
[Round "9"]
[White "Aguero Arce, Matias"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2190"]
[BlackElo "1957"]
[PlyCount "71"]
[EventDate "2019.03.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 c5 7. dxc5 Bxc5 8. a3 Nc6 9. b4 Nxb4 10. axb4 Bxb4 11. Qb3 a5 12. Nd2 Nd7 13. Rc1 e5 14. Bg3 Nc5 15. Qc2 d4 16. Nd5 dxe3 17. fxe3 Bxd2+ 18. Kxd2 a4 19. Ke1 Qg5 20. Bd3 Be6 21. Kf2 Rac8 22. h4 Qd8 23. Bxh7+ Kh8 24. Bf5 g6 25. Bxe6 fxe6+ 26. Kg1 Rf5 27. h5 g5 28. e4 Rf7 29. Bxe5+ Kh7 30. h6 Nb3 31. Rd1 Qf8 32. Bd6 Qg8 33. e5+ Qg6 34. Qxg6+ Kxg6 35. Ne7+ Rxe7 36. Bxe7 1-0

[Event "Villa Ballester op 69th"]
[Site "Villa Ballester"]
[Date "2019.01.20"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Parisi, Thiago"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1984"]
[BlackElo "1706"]
[PlyCount "79"]
[EventDate "2019.01.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. c4 e6 4. Nc3 d5 5. Bf4 c6 6. e3 Bd6 7. c5 Bxf4 8. exf4 0-0 9. Be2 b6 10. b4 Ne4 11. Nxe4 fxe4 12. Ne5 Rxf4 13. 0-0 Qc7 14. Qd2 Rf6 15. Rfc1 b5 16. a4 bxa4 17. b5 Bb7 18. Rxa4 Nd7 19. bxc6 Bxc6 20. Nxc6 Qxc6 21. Ra6 Qc7 22. f3 Nb8 23. Rd6 exf3 24. Bxf3 Nc6 25. Re1 e5 26. Bxd5+ Kh8 27. Rxf6 gxf6 28. Qh6 Qe7 29. Bxc6 Rd8 30. Qe3 Qc7 31. d5 a5 32. Qh6 Qf7 33. Rb1 e4 34. Rb7 Qg6 35. Rxh7+ Qxh7 36. Qxf6+ Qg7 37. Qxd8+ Kh7 38. Qd7 e3 39. Kf1 Qxd7 40. Bxd7 1-0

[Event "Villa Ballester op 69th"]
[Site "Villa Ballester"]
[Date "2019.01.19"]
[Round "3"]
[White "Marey, Mauro"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2124"]
[BlackElo "1984"]
[PlyCount "65"]
[EventDate "2019.01.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 0-0 6. e3 c5 7. dxc5 Bxc5 8. a3 Nc6 9. b4 Bd6 10. Bg5 Be7 11. Qb3 d4 12. Rd1 e5 13. Be2 Be6 14. 0-0 h6 15. Bh4 Rc8 16. exd4 exd4 17. Nb5 Qb6 18. Nbxd4 Nxd4 19. Nxd4 Rfd8 20. Nxe6 Qxe6 21. Qf3 Rxd1 22. Rxd1 Rd8 23. Rxd8+ Bxd8 24. Qd3 Be7 25. h3 b6 26. Bf3 Bd6 27. Qe2 Qf5 28. Bxf6 Qxf6 29. Qe8+ Kh7 30. Be4+ g6 31. g3 Qe7 32. Qc6 Qc7 33. Qe8 1-0

[Event "Villa Ballester op 69th"]
[Site "Villa Ballester"]
[Date "2019.01.16"]
[Round "1"]
[White "Luvino, Gustavo"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C34"]
[WhiteElo "1442"]
[BlackElo "1984"]
[PlyCount "48"]
[EventDate "2019.01.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Nc3 d5 5. e5 Nh5 6. d4 Bg4 7. Qd3 c6 8. Ne2 Na6 9. c3 Nc7 10. h3 Bxf3 11. Qxf3 Qh4+ 12. g3 fxg3 13. Bg2 Be7 14. Nf4 g6 15. Nxh5 Qxh5 16. 0-0 Qxf3 17. Rxf3 0-0 18. Bh6 Bh4 19. Bxf8 Rxf8 20. Rf4 Bg5 21. Rf3 Bh4 22. Bf1 Ne6 23. Bd3 Ng5 24. Rf4 Nxh3+ 0-1

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.12"]
[Round "9"]
[White "Areco, Antonio"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "D63"]
[WhiteElo "1740"]
[BlackElo "1983"]
[PlyCount "46"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 0-0 7. Nf3 Nbd7 8. Rc1 c5 9. Be2 dxc4 10. Bxc4 a6 11. a4 cxd4 12. Nxd4 Ne5 13. Be2 Ng6 14. Bg3 e5 15. Nf3 Qa5 16. 0-0 Be6 17. Bd3 Nd7 18. Qe2 Rac8 19. Bc2 f5 20. Rfd1 Rfe8 21. h3 Qb4 22. Rb1 Rc5 23. Na2 Bxa2 0-1

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.11"]
[Round "8"]
[White "Koch, Juan Enrique"]
[Black "Lopez, Diego"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "1983"]
[BlackElo "2173"]
[PlyCount "52"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bg5 Be4 11. Qc1 Nbd7 12. Nbd2 Bb7 13. Qc2 Rc8 14. Bxf6 Nxf6 15. Nb3 Be4 16. Qc3 Nd5 17. Qc1 c5 18. dxc5 Qc7 19. Nfd4 Bxg2 20. Kxg2 Bxc5 21. Qxc5 Qxc5 22. Nxc5 Rxc5 23. Rac1 Rfc8 24. Rxc5 Rxc5 25. Nb3 Rc4 26. Rc1 Rxc1 1/2-1/2

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.10"]
[Round "7"]
[White "Hoeschele, Hermann"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1735"]
[BlackElo "1983"]
[PlyCount "71"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. Bg5 Be7 6. e3 h6 7. Bxf6 Nxf6 8. cxd5 exd5 9. Bd3 0-0 10. Qc2 Be6 11. Ne5 Ng4 12. 0-0 c6 13. Qe2 Nxe5 14. dxe5 Qc7 15. f4 f5 16. Qh5 Qc8 17. Qh3 Re8 18. Ne2 c5 19. Ng3 Qd7 20. Rad1 d4 21. Bb1 Qc8 22. exd4 cxd4 23. Rc1 Qd7 24. Rfd1 Rac8 25. Ne2 Rxc1 26. Rxc1 Rc8 27. b3 Rxc1+ 28. Nxc1 Qc7 29. Ne2 Qa5 30. Kf1 Qa6 31. Ke1 Bc5 32. Bxf5 Bd5 33. Bb1 Qc6 34. Qd3 Bxg2 35. Qh7+ Kf7 36. Bg6+ 0-1

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.09"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Costianosky, Ricardo"]
[Result "0-1"]
[ECO "D23"]
[WhiteElo "1983"]
[BlackElo "2248"]
[PlyCount "60"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 c6 5. Qb3 Qb6 6. 0-0 Nbd7 7. d4 dxc4 8. Qxc4 e6 9. Nc3 Be7 10. Nh4 Bg4 11. e4 e5 12. Be3 exd4 13. Bxd4 Be6 14. Qa4 Bc5 15. Bxc5 Nxc5 16. Qc2 0-0 17. b3 Rad8 18. Rad1 Rxd1 19. Rxd1 Rd8 20. Rd2 g6 21. Nf3 Rxd2 22. Nxd2 Qd8 23. e5 Ng4 24. Nf3 Qd3 25. Qc1 Nxf2 26. Ne1 Qd4 27. Kf1 Ng4 28. Nd1 Nxh2+ 29. Ke2 Bg4+ 30. Nf3 Qd3+ 0-1

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.08"]
[Round "5"]
[White "Cuberli, Emiliano"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C22"]
[WhiteElo "2215"]
[BlackElo "1983"]
[PlyCount "79"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Be7 6. Qg3 Nb4 7. Bd3 d6 8. Nge2 Nxd3+ 9. cxd3 Nh5 10. Qf3 Nf6 11. 0-0 0-0 12. h3 Nd7 13. d4 c5 14. Qg3 Re8 15. Rd1 cxd4 16. Nxd4 Ne5 17. Nd5 Be6 18. Ne3 Qb6 19. Nef5 Bxf5 20. Nxf5 Ng6 21. Be3 Qc6 22. f3 Bf8 23. h4 h5 24. Qg5 Rad8 25. Qxh5 d5 26. exd5 Qd7 27. Qg5 Re5 28. g4 Rxd5 29. Rf1 Ne7 30. Bxa7 Nxf5 31. gxf5 Rxf5 32. Qg4 Qe6 33. Rae1 Qf6 34. Be3 Rd3 35. Bg5 Qb6+ 36. Kh1 Rfd5 37. Re8 f6 38. Bh6 Qc7 39. Rg1 Rd1 40. Qe6+ 1-0

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.07"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Bosco, Giuliana"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "1983"]
[BlackElo "1578"]
[PlyCount "54"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 c6 12. Bc4 Bd7 13. Be3 h6 14. 0-0-0 a5 15. Kb1 Na6 16. Bb6 g5 17. dxc6 Bxc6 18. Bd5 Rac8 19. Be3 Nb4 20. Bxc6 Nxc6 21. Rd5 Rcd8 22. Rhd1 b5 23. Rxd8 Rxd8 24. Rxd8+ Nxd8 25. Kc2 b4 26. Bc5 Nc6 27. Bd6 f6 1-0

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.06"]
[Round "3"]
[White "Martinez de Negri, Agustin Gonzalo"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2211"]
[BlackElo "1983"]
[PlyCount "85"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Be7 9. Bd3 0-0 10. 0-0 h6 11. Ne4 Nd5 12. Ng3 Nb4 13. Be4 Nb7 14. a3 Nd5 15. c4 Nf6 16. Bxc6 Rb8 17. b4 Bg4 18. Qe3 Qc7 19. Bxb7 Rxb7 20. h3 Be6 21. d3 a5 22. b5 Bc5 23. Qe2 Bd4 24. Bb2 Rd8 25. Bxd4 Rxd4 26. Nc3 Nd7 27. Rfe1 Nc5 28. Rad1 f6 29. Nce4 Nxd3 30. Rxd3 Bxc4 31. Red1 Bxd3 32. Rxd3 Qc1+ 33. Kh2 Qc4 34. Rxd4 Qxd4 35. Qg4 Qd8 36. Nf5 Kh7 37. Nh4 Rxb5 38. Qg6+ Kg8 39. Nf5 Rb7 40. Nxh6+ Kf8 41. Qh7 Ke8 42. Qg8+ Ke7 43. Qf7# 1-0

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.05"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Schultz, Rauanda"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "1983"]
[BlackElo "1557"]
[PlyCount "35"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 c6 5. Qb3 Qb6 6. 0-0 e6 7. d4 dxc4 8. Qxc4 Nbd7 9. Nc3 Ne4 10. Nh4 Nxc3 11. Nxf5 Nb5 12. a4 Nc7 13. Ne3 Bd6 14. Qd3 0-0 15. Nc4 Qa6 16. Nxd6 Qxd3 17. exd3 Rab8 18. Nxb7 1-0

[Event "Buenos Aires Szmetan Giardelli op"]
[Site "Buenos Aires"]
[Date "2018.12.04"]
[Round "1"]
[White "Toniutti, Ezio"]
[Black "Koch, Juan Enrique"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2301"]
[BlackElo "1983"]
[PlyCount "89"]
[EventDate "2018.12.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "CBM 187 Extra"]
[Source "ChessBase"]
[SourceDate "2018.11.04"]
[SourceVersion "1"]
[SourceVersionDate "2018.11.04"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. g3 d5 4. Nf3 dxc4 5. Bg2 c5 6. 0-0 Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 Ng4 10. Ne4 Be7 11. h3 Nf6 12. Nd6+ Bxd6 13. Rxd6 Ke7 14. Rd1 Bd7 15. Be3 b6 16. Rac1 Rac8 17. Rxc4 Rhd8 18. Bd2 Kf8 19. Bf4 Be8 20. Rdc1 Nd5 21. Bd2 Nce7 22. e4 Rxc4 23. Rxc4 Nf6 24. Rd4 Rxd4 25. Nxd4 e5 26. Nc2 Bc6 27. f3 a5 28. Bc3 Nd7 29. Ne3 Bb5 30. f4 f6 31. Bf3 Bd3 32. Ng4 Nc6 33. Nf2 Bc4 34. b3 Ba6 35. Ng4 Nd4 36. Kf2 Nxf3 37. Kxf3 exf4 38. Kxf4 Ke7 39. Ne3 Bb7 40. Nf5+ Kf8 41. Ke3 Ne5 42. Nd6 Bc6 43. Bd4 Ke7 44. Nc8+ Kd8 45. Nxb6 1-0

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.30"]
[Round "7.6"]
[White "Ucha, Luis"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1877"]
[BlackElo "1942"]
[PlyCount "102"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 g6 7. 0-0 Bg7 8. Re1 0-0 9. Nbd2 Re8 10. h3 h6 11. Bb3 Na5 12. Bc2 c5 13. a4 Nc6 14. Bb3 Be6 15. Bxe6 Rxe6 16. Nc4 b5 17. Ne3 Re8 18. Qc2 Rc8 19. Bd2 d5 20. axb5 axb5 21. exd5 Nxd5 22. Ng4 Nf4 23. Nfxe5 Nxh3+ 24. gxh3 Nxe5 25. Nxe5 Bxe5 26. f4 Bb8 27. Rxe8+ Qxe8 28. Rf1 Qe2 29. Rf2 Qh5 30. Qb3 c4 31. Qc2 Qf5 32. Be3 Qxh3 33. Bd4 Qxd3 34. Qxd3 cxd3 35. Kg2 b4 36. Kf3 bxc3 37. bxc3 Rd8 38. Ra2 g5 39. fxg5 hxg5 40. Rg2 Bf4 41. Ra2 d2 42. Ra1 f5 43. Rh1 Kf7 44. Ke2 Re8+ 45. Kd1 Kg6 46. Rf1 Re4 47. Rg1 g4 48. Rf1 g3 49. Bb6 Kg5 50. Rxf4 Kxf4 51. Kxd2 Kf3 0-1

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.??"]
[Round "5.10"]
[White "Frangione, Francisco"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1693"]
[BlackElo "1942"]
[PlyCount "104"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Nxe4 7. Bxe4 Nf6 8. Bd3 c5 9. Bg5 cxd4 10. Bxf6 gxf6 11. Bb5+ Bd7 12. Bxd7+ Qxd7 13. Qxd4 Qxd4 14. Nxd4 Bc5 15. Nb3 Bb6 16. Ke2 Rg8 17. g3 Rd8 18. Rhd1 Ke7 19. a4 a5 20. Nd2 Rc8 21. c4 Rgd8 22. f3 Bd4 23. Rab1 b6 24. b3 f5 25. f4 Bc5 26. Nf3 f6 27. Rxd8 Rxd8 28. Rd1 Rxd1 29. Kxd1 Kd6 30. Ke2 h6 31. h3 h5 32. Nh4 Bd4 33. Nf3 Kc5 34. Ne1 Kb4 35. Nc2+ Kc5 36. Nxd4 Kxd4 37. Kd2 e5 38. Ke2 e4 39. Kd2 Kc5 40. Kc3 e3 41. Kd3 Kb4 42. Kxe3 Kxb3 43. Kd3 Kb4 44. h4 Kxa4 45. Kc3 Ka3 46. c5 bxc5 47. Kc4 Kb2 48. Kxc5 a4 49. Kd5 a3 50. Ke6 a2 51. Kxf5 a1Q 52. Kxf6 Qg1 0-1

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.??"]
[Round "4.5"]
[White "Koch, Juan Enrique"]
[Black "Barrionuevo, Pablo"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1942"]
[BlackElo "2261"]
[PlyCount "74"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 d4 5. 0-0 c5 6. e3 Nc6 7. exd4 cxd4 8. d3 Be7 9. Bg5 0-0 10. Re1 h6 11. Bxf6 Bxf6 12. Nbd2 Rb8 13. a3 a5 14. c5 Re8 15. Rb1 Be7 16. Qc2 Bd7 17. b4 axb4 18. axb4 b5 19. Qb2 Qc7 20. Ra1 e5 21. Ra6 Bf8 22. Rea1 Kh8 23. Ne1 f5 24. Bd5 Be7 25. Nef3 Bf6 26. Qa3 Qc8 27. Rb6 Rxb6 28. cxb6 Qb8 29. Nb3 Qd6 30. Bxc6 Bxc6 31. Ne1 Qd5 32. f3 e4 33. Nc5 exf3 34. Qb3 Rxe1+ 35. Rxe1 f2+ 36. Kf1 Qg2+ 37. Ke2 Bf3+ 0-1

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.??"]
[Round "2.4"]
[White "Koch, Juan Enrique"]
[Black "Lalanne, Pablo"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1942"]
[BlackElo "2208"]
[PlyCount "112"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 c5 5. cxd5 exd5 6. Bg2 Nc6 7. 0-0 Be7 8. dxc5 Bxc5 9. a3 a6 10. Qc2 Ba7 11. Bg5 h6 12. Bxf6 Qxf6 13. Nc3 Be6 14. Rad1 d4 15. Ne4 Qe7 16. b4 0-0 17. Nc5 Rac8 18. Qb2 Rfd8 19. Nd3 Bc4 20. Rd2 b5 21. Rfd1 a5 22. bxa5 Nxa5 23. Qb4 Qc7 24. Nfe5 f6 25. Ng6 Re8 26. Bh3 Nc6 27. Qb2 Rb8 28. Rc1 Bb6 29. Bg2 Ba5 30. Nb4 Nxb4 31. axb4 Bb6 32. Bd5+ Bxd5 33. Rxc7 Bxc7 34. Qxd4 Bf7 35. Nf4 Be5 36. Qd7 Bc3 37. Rd1 Bxb4 38. Nd5 Bc5 39. e3 b4 40. Nc7 Rec8 41. Na6 Ra8 42. Rc1 b3 43. Nxc5 b2 44. Rb1 Rxc5 45. Rxb2 Rd5 46. Qc7 Rf8 47. e4 Re5 48. f3 Ree8 49. Kf2 Rc8 50. Qb6 Rfd8 51. h4 Rc3 52. g4 Rdd3 53. Qb8+ Kh7 54. Qf4 Bb3 55. Rd2 Rxd2+ 56. Qxd2 Rc2 0-1

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.??"]
[Round "6.8"]
[White "Koch, Juan Enrique"]
[Black "Spizzirri, Damian"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1942"]
[PlyCount "45"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. d4 Nc6 4. Bg2 Nf6 5. 0-0 Bf5 6. c4 e6 7. Bg5 dxc4 8. Qa4 Qa5 9. Qxc4 Be7 10. Nc3 0-0 11. Bxf6 Bxf6 12. dxc5 Rfd8 13. a3 Nd4 14. b4 Nxf3+ 15. Bxf3 Qc7 16. Nb5 Qd7 17. Rad1 Qxd1 18. Rxd1 Rxd1+ 19. Kg2 Rad8 20. e4 Bg6 21. Bxd1 Rxd1 22. Qe2 Rb1 23. Nd6 1-0

[Event "Buenos Aires Faogba 35th"]
[Site "Buenos Aires"]
[Date "2018.11.??"]
[Round "3.10"]
[White "Serratto, Ricardo Adolfo"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1641"]
[BlackElo "1942"]
[PlyCount "46"]
[EventDate "2018.11.13"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. a3 d6 6. h3 g6 7. Be3 Bg7 8. Nc3 0-0 9. Qd2 Kh7 10. 0-0 Nd7 11. Ne2 f5 12. exf5 gxf5 13. Qd1 Nf6 14. Bb5 Bd7 15. c3 Qe8 16. Nh2 f4 17. Bd2 Qh5 18. f3 a6 19. Ba4 Kh8 20. Ng4 Nh7 21. d4 b5 22. Bb3 Na5 23. Ba2 Rad8 0-1

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.18"]
[Round "6"]
[White "Koch, Juan Enrique"]
[Black "Edgar, Roberto"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1927"]
[BlackElo "1995"]
[PlyCount "83"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 0-0 5. e4 d6 6. h3 c5 7. Be2 cxd4 8. Nxd4 Nc6 9. Be3 Qa5 10. 0-0 a6 11. a3 Nxd4 12. Bxd4 Be6 13. Nd5 Bxd5 14. exd5 Rac8 15. b4 Qd8 16. Rc1 b5 17. Bxf6 Bxf6 18. cxb5 axb5 19. Bxb5 Qb6 20. Qd3 Bb2 21. Rc6 Qb8 22. Rxc8 Rxc8 23. Bc6 Qb6 24. Qb3 Bd4 25. a4 Bc5 26. b5 Rc7 27. Kh2 Ra7 28. f4 Qa5 29. f5 g5 30. f6 exf6 31. Qb2 Be3 32. Qxf6 Bf4+ 33. Rxf4 gxf4 34. Qxf4 Qd8 35. Qd4 Ra5 36. b6 Rc5 37. b7 h5 38. Qd1 Rc4 39. Qxh5 Rb4 40. Qf5 Qh4 41. Bb5 Qd8 42. Qc8 1-0

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.15"]
[Round "5"]
[White "Wald, Gabriel"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1860"]
[BlackElo "1927"]
[PlyCount "20"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 d5 3. Bf4 Bd6 4. Bg3 Nf6 5. Nbd2 0-0 6. e3 b6 7. c3 Bb7 8. Ne5 Nbd7 9. Bd3 Qe7 10. Ndf3 c5 1/2-1/2

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.13"]
[Round "4"]
[White "Koch, Juan Enrique"]
[Black "Saez, Diego"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1927"]
[BlackElo "1787"]
[PlyCount "62"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. d4 c6 4. Nc3 Nf6 5. e3 Nbd7 6. Bd3 Bd6 7. g4 Nxg4 8. Rg1 Nxh2 9. Nxh2 Bxh2 10. Rxg7 Qh4 11. Qf3 f5 12. cxd5 Qh6 13. Qg2 cxd5 14. Bd2 a6 15. 0-0-0 Bd6 16. e4 Bf4 17. exd5 e5 18. Bxf5 Nf6 19. Bxc8 Rxc8 20. dxe5 Ne4 21. Qg4 Bxd2+ 22. Kc2 Rxc3+ 23. bxc3 Kf8 24. Rxb7 Qg6 25. Qc8+ Qe8 26. Qf5+ Kg8 27. Qxe4 Bg5 28. Rdb1 h6 29. f4 Bd8 30. Rg1+ Bg5 31. fxg5 h5 1-0

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.11"]
[Round "3"]
[White "Rodriguez Vargas, Sergio"]
[Black "Koch, Juan Enrique"]
[Result "1/2-1/2"]
[ECO "B25"]
[BlackElo "1927"]
[PlyCount "96"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 e6 7. 0-0 Nge7 8. d3 0-0 9. Be3 b6 10. Qd2 d5 11. Bf2 dxe4 12. dxe4 Qxd2 13. Nxd2 Ba6 14. Rfd1 Nd4 15. e5 Rad8 16. Bxd4 cxd4 17. Nce4 Nf5 18. Nb3 Ne3 19. Rxd4 Nxg2 20. Kxg2 Bb7 21. Re1 f5 22. exf6 Bxf6 23. Rxd8 Rxd8 24. c3 Bd5 25. Kf2 Be7 26. Nd4 Kf7 27. h4 a6 28. Ng5+ Bxg5 29. hxg5 h5 30. b3 b5 31. Ke3 h4 32. gxh4 Rh8 33. Nf3 Bxf3 34. Kxf3 Rxh4 35. Re2 Rh3+ 36. Ke4 Rxc3 37. Rd2 Ke7 38. Rh2 Rc1 39. Rh7+ Kd6 40. Ra7 Re1+ 41. Kd3 Kd5 42. Rxa6 Rh1 43. Ra5 Rh3+ 44. Ke2 Ke4 45. Rxb5 Rh2+ 46. Ke1 Rxa2 47. Rb4+ Ke3 48. Kd1 Kd3 1/2-1/2

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.06"]
[Round "2"]
[White "Koch, Juan Enrique"]
[Black "Chan, Daniel Roberto"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "1927"]
[BlackElo "1801"]
[PlyCount "97"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. d4 c6 4. Nc3 f5 5. Bf4 Nf6 6. e3 Be7 7. Bd3 0-0 8. Qc2 Ne4 9. g4 Na6 10. a3 Qa5 11. Ke2 Nxc3+ 12. bxc3 Nc7 13. Ne5 Ne8 14. Rhg1 Nd6 15. Rab1 dxc4 16. Nxc4 Nxc4 17. Bxc4 fxg4 18. Rxg4 Qf5 19. Qxf5 Rxf5 20. Be5 g6 21. a4 b6 22. f4 Rh5 23. Rg2 Kf8 24. Rf1 Bd7 25. e4 b5 26. Bb3 c5 27. f5 exf5 28. Bd5 Re8 29. axb5 cxd4 30. Bxd4 Bxb5+ 31. c4 Bd7 32. Bxa7 Bd6 33. Bd4 Be6 34. Kd2 Bxd5 35. exd5 Re4 36. Bc3 Rxc4 37. Ra1 Rxh2 38. Rxh2 Bxh2 39. Ra8+ Ke7 40. Ra7+ Rc7 41. Bb4+ Kd7 42. Ra6 Rb7 43. Ba3 Bb8 44. Re6 Bf4+ 45. Kc2 Bg5 46. Rd6+ Kc7 47. Rc6+ Kd7 48. Rd6+ Kc7 49. Rc6+ 1/2-1/2

[Event "Moron Philidor CC op 17th"]
[Site "Moron"]
[Date "2018.09.04"]
[Round "1"]
[White "Sanchez, Abril"]
[Black "Koch, Juan Enrique"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1612"]
[BlackElo "1927"]
[PlyCount "150"]
[EventDate "2018.09.04"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 c5 7. d5 e6 8. Bd3 exd5 9. exd5 Re8+ 10. Be3 Nbd7 11. 0-0 Ne5 12. Nxe5 Rxe5 13. Bf4 Re7 14. Nb5 Ne8 15. Qc2 a6 16. Nc3 Be5 17. Bxe5 Rxe5 18. Rfe1 f5 19. f4 Re7 20. Qf2 Bd7 21. Rxe7 Qxe7 22. Re1 Qf6 23. Qe3 Kf8 24. Bc2 Nc7 25. Bb3 b5 26. Qd2 Re8 27. Rxe8+ Kxe8 28. Qe3+ Kf7 29. Kf2 b4 30. Nd1 a5 31. a3 bxa3 32. bxa3 Qa1 33. Bc2 Qa2 34. Qb3 Qxb3 35. Bxb3 Kf6 36. Kf3 h6 37. Nc3 g5 38. Ba4 Be8 39. Nb5 Bxb5 40. Bxb5 Na8 41. Bc6 Nb6 42. Bb5 Nc8 43. Bd7 Nb6 44. Bb5 Nc8 45. Bd7 Ne7 46. Be8 Kg7 47. g3 Kf6 48. Bd7 Ng6 49. Be8 Nf8 50. Bc6 Ke7 51. Bb5 Nh7 52. Ba6 Kd8 53. Bb5 Nf6 54. g4 fxg4+ 55. hxg4 Ke7 56. Ba6 gxf4 57. Kxf4 Nd7 58. Kf5 Ne5 59. Bb5 Kf7 60. Ba6 Nf3 61. Bb5 Nd4+ 62. Kf4 Kf6 63. Ba6 Nc2 64. a4 Nb4 65. Bb5 Nd3+ 66. Ke4 Ne5 67. Kf4 Ng6+ 68. Ke4 Kg5 69. Kf3 Ne5+ 70. Kg3 Nxg4 71. Bd7 Ne5 72. Bb5 Kf5 73. Kh4 Ke4 74. Kh5 Kd4 75. Kxh6 Nxc4 0-1

