[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.11"]
[Round "6"]
[White "Contreras, Ruben"]
[Black "Marinas Gonzalez, Mirta"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1785"]
[PlyCount "43"]
[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 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Be2 Be7 6. 0-0 0-0 7. Nc3 c6 8. h3 a6 9. Bf4 Bf5 10. Ne5 Be6 11. Bh2 Bd6 12. f4 c5 13. f5 Bc8 14. dxc5 Bxc5+ 15. Kh1 Nc6 16. Ng4 d4 17. Nxf6+ Qxf6 18. Ne4 Qe7 19. Bd3 Bb6 20. f6 Qd7 21. Qh5 g6 22. Qh6 1-0

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.11"]
[Round "7"]
[White "Navarro, Alberto"]
[Black "Contreras, Ruben"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1687"]
[BlackElo "1785"]
[PlyCount "86"]
[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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d3 Nf6 5. h3 Bf5 6. Nf3 c6 7. Be2 Nbd7 8. Bf4 e5 9. Bd2 Qc7 10. a3 0-0-0 11. b4 e4 12. dxe4 Nxe4 13. Nxe4 Bxe4 14. 0-0 Nb6 15. Qc1 Bxf3 16. Bxf3 Nc4 17. Bf4 Bd6 18. Bxd6 Qxd6 19. Be2 Ne5 20. Rd1 Qf6 21. Qe3 Kb8 22. a4 Rhe8 23. Rxd8+ Rxd8 24. Rb1 Nd7 25. a5 a6 26. c4 Qe5 27. Qd2 Kc8 28. Qc2 g6 29. b5 Nb8 30. Bf1 Re8 31. Qb3 Re7 32. Rd1 f5 33. bxa6 Nxa6 34. Qb6 Qc7 35. Qd4 Kb8 36. Qh8+ Ka7 37. Rd8 Qxa5 38. Ra8+ Kb6 39. Qd8+ Rc7 40. c5+ Qxc5 41. Bxa6 Qc1+ 42. Bf1 Qf4 43. Qg8 Qd6 1-0

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.10"]
[Round "4"]
[White "Contreras, Ruben"]
[Black "Huberman, Alejandro"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1785"]
[BlackElo "1606"]
[PlyCount "73"]
[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 g6 2. Nf3 Bg7 3. Bc4 d6 4. d4 e6 5. 0-0 Ne7 6. Nc3 Nd7 7. Be3 a6 8. Qd2 b5 9. Bb3 Bb7 10. a3 Nb6 11. Qd3 d5 12. e5 Nc4 13. Bxc4 dxc4 14. Qe2 0-0 15. Rad1 h6 16. Nb1 Nf5 17. c3 Qe7 18. Bc1 Rfd8 19. g4 Nh4 20. Nxh4 Qxh4 21. f3 Kh7 22. Qf2 Qe7 23. Nd2 f5 24. h3 Rf8 25. Kg2 h5 26. gxh5 gxh5 27. Kh2 Bh6 28. Rg1 Rg8 29. Nb1 Bxc1 30. Rxc1 Qf7 31. Nd2 Rxg1 32. Rxg1 Rg8 33. Rxg8 Qxg8 34. Qh4 Kh6 35. Qf6+ Qg6 36. Qe7 Qg5 37. Qxe6+ 1-0

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.10"]
[Round "5"]
[White "Valli, Americo"]
[Black "Contreras, Ruben"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1935"]
[BlackElo "1785"]
[PlyCount "41"]
[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. d4 d5 2. Nf3 c6 3. Bf4 Nf6 4. Nbd2 Bf5 5. c4 e6 6. e3 Be7 7. Be2 0-0 8. Qb3 Qb6 9. 0-0 Nh5 10. Bxb8 Raxb8 11. Ne5 Nf6 12. g4 Bg6 13. Qxb6 axb6 14. g5 Ne4 15. Nxe4 dxe4 16. Nd7 Bxg5 17. Nxb8 Rxb8 18. a4 Ra8 19. b4 Be7 20. Rfb1 f5 21. c5 1-0

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.09"]
[Round "2"]
[White "Contreras, Ruben"]
[Black "Leskovar, Mario Leopoldo"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1785"]
[BlackElo "2214"]
[PlyCount "84"]
[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. Nf3 d6 2. g3 g6 3. Bg2 Bg7 4. 0-0 e5 5. Nc3 f5 6. d3 Nf6 7. Rb1 a5 8. Qe1 0-0 9. b3 Nc6 10. Bb2 Nh5 11. e3 Be6 12. Ne2 a4 13. Qd2 h6 14. d4 e4 15. d5 exf3 16. Bxf3 Ne5 17. Bxe5 dxe5 18. Rfd1 Bf7 19. c4 axb3 20. Rxb3 Ra7 21. Rdb1 Qe8 22. R1b2 e4 23. Bg2 Bxb2 24. Rxb2 Qd8 25. Nc3 b6 26. Nb5 Ra5 27. Bf1 Qe7 28. Nd4 Be8 29. Ne6 Rf6 30. c5 Rxc5 31. Nxc5 Qxc5 32. Rc2 Qe7 33. Bc4 Bf7 34. Qc3 Rd6 35. Rd2 Nf6 36. Qb3 Ng4 37. Bb5 Ne5 38. Rd1 g5 39. Kg2 f4 40. exf4 gxf4 41. gxf4 Nf3 42. Rh1 Rg6+ 0-1

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.09"]
[Round "3"]
[White "Mathey, Carlos"]
[Black "Contreras, Ruben"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "1633"]
[BlackElo "1785"]
[PlyCount "79"]
[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 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d4 e6 6. Bg5 h6 7. Bxf6 Qxf6 8. e3 0-0 9. Nge2 Rb8 10. 0-0 b6 11. Qa4 Bb7 12. b4 Rfd8 13. Rad1 a5 14. b5 Ne7 15. e4 g5 16. g4 Qg6 17. Ng3 f5 18. f3 f4 19. Nh5 Bh8 20. Qb3 Qf7 21. Rfe1 d5 22. cxd5 exd5 23. e5 Qe6 24. h4 Rf8 25. Ne2 Ng6 26. hxg5 hxg5 27. Rc1 Rbc8 28. Kf2 Rf7 29. Rh1 Rh7 30. Qd3 Nf8 31. Rh2 Qg6 32. Qf5 Qxf5 33. gxf5 c6 34. bxc6 Rxc6 35. Rch1 Rcc7 36. Bf1 Bc8 37. e6 Rc2 38. Ke1 Re7 39. Rg1 Rg7 40. Nf6# 1-0

[Event "ARG-ch Seniors 65"]
[Site "Buenos Aires"]
[Date "2021.12.08"]
[Round "1"]
[White "Meineri, Carlos"]
[Black "Contreras, Ruben"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1361"]
[BlackElo "1785"]
[PlyCount "20"]
[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. d4 d5 2. Nf3 c6 3. e3 Nf6 4. Bd3 Bg4 5. h3 Bh5 6. 0-0 e6 7. Nbd2 Bd6 8. c4 0-0 9. cxd5 exd5 10. e4 dxe4 0-1

[Event "ARG-ch Seniors 65"]
[Site "Coronel Pringles"]
[Date "2019.12.15"]
[Round "5.5"]
[White "Contreras, Ruben"]
[Black "Meineri, Carlos"]
[Result "1-0"]
[ECO "B95"]
[BlackElo "1354"]
[PlyCount "45"]
[EventDate "2019.12.13"]
[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 e6 7. Bg5 Be7 8. Qd3 b5 9. Bb3 Bb7 10. Bxe6 fxe6 11. Nxe6 Qd7 12. Nxg7+ Kf7 13. Bxf6 Bxf6 14. Nf5 d5 15. 0-0-0 Bxc3 16. Qxc3 Rd8 17. Qg7+ Ke6 18. Nd4+ Kd6 19. Qg3+ Kc5 20. exd5 Bxd5 21. Nb3+ Kb6 22. Qe3+ Kb7 23. Nc5+ 1-0

[Event "ARG-ch Seniors 65"]
[Site "Coronel Pringles"]
[Date "2019.12.14"]
[Round "3.2"]
[White "Leskovar, Mario Leopoldo"]
[Black "Contreras, Ruben"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2234"]
[PlyCount "53"]
[EventDate "2019.12.13"]
[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. d3 d5 3. Nd2 dxe4 4. dxe4 Bc5 5. Ngf3 Nc6 6. Bb5 Bd7 7. 0-0 a6 8. Bxc6 Bxc6 9. Ne5 Qd6 10. Nec4 Qe7 11. Qe2 Bb5 12. a4 Bd7 13. Nb3 Ba7 14. Bf4 0-0-0 15. Rfd1 Nf6 16. Ne5 h6 17. Be3 Bxe3 18. Qxe3 Kb8 19. Nc5 Bc8 20. Nxa6+ Ka8 21. Nc5 Nd7 22. Ncxd7 Bxd7 23. Rd4 Bc8 24. Rad1 Rxd4 25. Qxd4 Re8 26. b3 f6 27. Nd7 1-0

[Event "ARG-ch Seniors 65"]
[Site "Coronel Pringles"]
[Date "2019.12.14"]
[Round "4.3"]
[White "Mathey, Carlos"]
[Black "Contreras, Ruben"]
[Result "1-0"]
[ECO "D79"]
[WhiteElo "1618"]
[PlyCount "97"]
[EventDate "2019.12.13"]
[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 Nf6 2. g3 g6 3. c4 Bg7 4. Bg2 0-0 5. Nc3 c6 6. Nf3 d5 7. cxd5 cxd5 8. 0-0 Nc6 9. Bf4 Nh5 10. Qd2 Nxf4 11. Qxf4 a6 12. Rac1 e6 13. Rfd1 Ne7 14. g4 b5 15. b3 Bb7 16. Ne5 Rc8 17. Nd3 f5 18. g5 Nc6 19. e3 Re8 20. Qg3 Re7 21. Ne2 e5 22. dxe5 Nxe5 23. Nc5 Bc6 24. Nf4 a5 25. Nce6 Qd6 26. Rxd5 Qb8 27. Rxc6 Nxc6 28. Nxg7 Kxg7 29. Bf1 Na7 30. Qh4 Qb7 31. Rd6 Kg8 32. Nd5 Rg7 33. Qd4 Nc6 34. Nf6+ Kh8 35. Qd5 Qc7 36. Bxb5 Ne7 37. Qd4 Ng8 38. Bc4 Rf8 39. Bxg8 Rxf6 40. Qxf6 Qe7 41. Bc4 h6 42. Qxe7 Rxe7 43. Rxg6 hxg5 44. Rxg5 Re5 45. e4 Rxe4 46. Rxf5 a4 47. Bd5 Re1+ 48. Kg2 a3 49. b4 1-0

[Event "ARG-ch Seniors 65"]
[Site "Coronel Pringles"]
[Date "2019.12.13"]
[Round "1.4"]
[White "Contreras, Ruben"]
[Black "Gimenez, Dante"]
[Result "1-0"]
[ECO "B35"]
[BlackElo "1841"]
[PlyCount "77"]
[EventDate "2019.12.13"]
[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. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 d6 7. Bc4 Nf6 8. h3 Bd7 9. 0-0 Qc8 10. Nxc6 bxc6 11. Kh2 h5 12. Qd2 Qc7 13. f4 e6 14. Rad1 d5 15. e5 Ng8 16. Bb3 c5 17. Nxd5 exd5 18. Qxd5 Bc6 19. Qxc5 Bf8 20. Qc4 Nh6 21. Rd3 Nf5 22. Bf2 Qb7 23. Rfd1 Rh7 24. Ba4 Rc8 25. Bxc6+ Qxc6 26. Rd8+ Ke7 27. Rxc8 Qxc4 28. Rxc4 Bh6 29. Rc7+ Ke8 30. g3 h4 31. Rdd7 hxg3+ 32. Bxg3 Bf8 33. e6 Ne7 34. exf7+ Rxf7 35. Rxa7 Rf5 36. Bh4 Nc6 37. Rac7 Rxf4 38. Rh7 Rxh4 39. Rc8+ 1-0

[Event "ARG-ch Seniors 65"]
[Site "Coronel Pringles"]
[Date "2019.12.13"]
[Round "2.1"]
[White "Contreras, Ruben"]
[Black "Ramirez, Emilio"]
[Result "0-1"]
[ECO "B32"]
[BlackElo "2239"]
[PlyCount "58"]
[EventDate "2019.12.13"]
[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 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nxc6 bxc6 6. Bd3 Nf6 7. 0-0 d6 8. Nc3 g6 9. Na4 Qc7 10. Rb1 Bd7 11. Bg5 Bg7 12. b3 0-0 13. f4 Rfe8 14. Qe2 c5 15. Nb2 Bc6 16. f5 a5 17. fxg6 hxg6 18. a4 Qb7 19. e5 dxe5 20. Rf2 Nd5 21. Qd2 Qb4 22. Nc4 Qxd2 23. Bxd2 Nb4 24. Re1 Nxd3 25. cxd3 f6 26. Nxa5 Bd5 27. Rc1 Rec8 28. Nc4 Rab8 29. Rb1 e4 0-1

