[Event "Rio Negro IRT"]
[Site "Rio Negro"]
[Date "2018.08.20"]
[Round "6.6"]
[White "Contreras, Juan Carlos"]
[Black "Tugnarelli, Julio"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "1698"]
[BlackElo "2117"]
[PlyCount "90"]
[EventDate "2018.08.17"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 Nf6 5. g3 c6 6. Bg2 Bf5 7. Bg5 Nbd7 8. Nf3 Qb6 9. Na4 Bb4+ 10. Bd2 Qa5 11. Nc3 0-0 12. a3 Bxc3 13. Bxc3 Qa6 14. 0-0 Rfe8 15. e3 Ne4 16. Bb4 Qb6 17. Nh4 Be6 18. f3 Nef6 19. e4 a5 20. Bc3 dxe4 21. fxe4 Bb3 22. Qb1 c5 23. d5 Ng4 24. Nf3 Ne3 25. Rf2 Nxg2 26. Kxg2 f6 27. Qd3 Ba4 28. Nd2 Bb5 29. Nc4 Qa6 30. b3 a4 31. Qf3 Bxc4 32. bxc4 Qxc4 33. Re1 b5 34. Rc1 b4 35. Bb2 Qb5 36. e5 Nxe5 37. Bxe5 fxe5 38. d6 c4 39. axb4 a3 40. Ra2 e4 41. Qe2 e3 42. Rc3 Qd5+ 43. Kg1 Qxd6 44. Rxc4 Rad8 45. Rxa3 Qd1+ 0-1

[Event "Rio Negro IRT"]
[Site "Rio Negro"]
[Date "2018.08.??"]
[Round "4.6"]
[White "Lucena, Julian"]
[Black "Contreras, Juan Carlos"]
[Result "1-0"]
[ECO "A85"]
[WhiteElo "1843"]
[BlackElo "1698"]
[PlyCount "25"]
[EventDate "2018.08.17"]
[EventType "tourn"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 f5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 b6 6. e3 Bb7 7. Bd3 d6 8. Qc2 d5 9. Bxf6 Bxf6 10. cxd5 Bxd5 11. Nxd5 Qxd5 12. Qxc7 Bd8 13. Qxg7 1-0

[Event "Lizarraga Memorial op"]
[Site "Argentina"]
[Date "2017.07.10"]
[Round "5.9"]
[White "Villa, Paulo Gabriel"]
[Black "Contreras, Juan Carlos"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1636"]
[BlackElo "1719"]
[PlyCount "52"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 c6 3. e3 Bg4 4. Bd3 Nf6 5. Nbd2 Nbd7 6. c3 Qc7 7. Qc2 e5 8. c4 d5 9. cxd5 Nxd5 10. a3 h6 11. b4 Bd6 12. Bb2 0-0 13. h3 Be6 14. Nc4 exd4 15. Nxd4 Be7 16. 0-0 N5f6 17. Nxe6 fxe6 18. f4 Nd5 19. Rf3 Bf6 20. Rg3 Bxb2 21. Qxb2 N7f6 22. Ne5 Nh5 23. Rg6 Nxe3 24. Qe2 Qb6 25. Nd7 Qd4 26. Re1 Ng4+ 0-1

[Event "Lizarraga Memorial op"]
[Site "Argentina"]
[Date "2017.07.09"]
[Round "3.13"]
[White "Baritoli, Fausto"]
[Black "Contreras, Juan Carlos"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "1719"]
[PlyCount "40"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 c6 3. Nc3 Nf6 4. f3 Nbd7 5. Be3 e5 6. Qd2 Qc7 7. 0-0-0 Nb6 8. Kb1 Be7 9. g4 h6 10. h4 Bd7 11. Nh3 0-0-0 12. g5 hxg5 13. Nxg5 Rdf8 14. dxe5 dxe5 15. Bxb6 axb6 16. Bc4 Bd8 17. Bb3 Nh5 18. Rhe1 Nf4 19. Ne2 Rxh4 20. Nxf4 Bxg5 0-1

[Event "Lizarraga Memorial op"]
[Site "Argentina"]
[Date "2017.07.09"]
[Round "4.7"]
[White "Contreras, Juan Carlos"]
[Black "Saitua, Guillermo Alberto"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1719"]
[BlackElo "1984"]
[PlyCount "62"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e5 7. Nf5 Bxf5 8. exf5 Be7 9. Bg5 Nbd7 10. Bxf6 Nxf6 11. Nd5 0-0 12. Qd3 Rc8 13. Bb3 Nxd5 14. Bxd5 Qb6 15. b3 e4 16. Qe3 Qa5+ 17. Qd2 Qc7 18. c4 Bf6 19. Rc1 Qe7 20. 0-0 Bg5 21. f4 exf3 22. Qe1 Qe3+ 23. Qf2 fxg2 24. Bxg2 Qxf2+ 25. Kxf2 Bxc1 26. Rxc1 Rc7 27. Re1 b5 28. Bd5 Rd8 29. h4 Kf8 30. h5 Re8 31. Rg1 Re5 0-1

[Event "Lizarraga Memorial op"]
[Site "Argentina"]
[Date "2017.07.08"]
[Round "2.7"]
[White "Contreras, Juan Carlos"]
[Black "Frank, Mario Alberto"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1719"]
[BlackElo "2150"]
[PlyCount "100"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Bg4 6. Be3 Nc6 7. c3 Nge7 8. Nbd2 Qd7 9. Qb3 0-0-0 10. 0-0-0 Bf5 11. Bxf5 Qxf5 12. Qc2 Qd7 13. Bg5 f6 14. Bh4 g5 15. Bg3 h5 16. Nb3 h4 17. Bxd6 Qxd6 18. h3 b6 19. Rde1 Rde8 20. Re2 Qf4+ 21. Qd2 Ng6 22. Rhe1 Rxe2 23. Rxe2 Qxd2+ 24. Kxd2 Nf4 25. Re1 Kd7 26. Rg1 Re8 27. Nc1 Na5 28. b3 Nb7 29. Nh2 Nd6 30. f3 Re6 31. Ng4 Ke7 32. Ne3 c6 33. Nd3 Nxd3 34. Kxd3 b5 35. a3 f5 36. Kd2 Kf6 37. Rf1 Re8 38. Kd3 a5 39. f4 Re4 40. fxg5+ Kxg5 41. Rf3 Rf4 42. Rxf4 Kxf4 43. Nf1 a4 44. bxa4 bxa4 45. Ke2 Nc4 46. Nh2 Nxa3 47. Nf3 Nc4 48. Ne1 a3 49. Nc2 Kg3 50. Nb4 Kxg2 0-1

[Event "Lizarraga Memorial op"]
[Site "Argentina"]
[Date "2017.07.08"]
[Round "1.18"]
[White "Rosales, Ezequiel"]
[Black "Contreras, Juan Carlos"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "1719"]
[PlyCount "6"]
[EventDate "2017.07.08"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "ARG"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. e3 Nf6 3. Bd3 Nc6 0-1

