[Event "Santa Rosa La Pampa op 7th"]
[Site "Santa Rosa La Pampa"]
[Date "2024.07.07"]
[Round "4"]
[White "Besso, Javier Alejandro"]
[Black "Rivas, Marcelo"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1889"]
[BlackElo "1826"]
[PlyCount "91"]
[EventDate "2024.07.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. g3 dxc4 6. Bg2 e6 7. 0-0 Be7 8. Ne5 0-0 9. Nxc4 Nbd7 10. e4 Nb6 11. Ne3 Qc7 12. Qc2 c5 13. d5 exd5 14. exd5 Bd7 15. Nf5 Bxf5 16. Qxf5 Rad8 17. Bf4 Bd6 18. Bg5 Be7 19. Bxf6 Bxf6 20. Be4 g6 21. Qxf6 Rd6 22. Qf4 Qd8 23. Rad1 Nc8 24. Bg2 Rf6 25. Qe3 b6 26. Ne4 Rf5 27. Qc3 Nd6 28. Nxd6 Qxd6 29. Rfe1 Rd8 30. Re2 Qf6 31. Qxf6 Rxf6 32. Re7 Rfd6 33. Ra7 b5 34. Re1 R8d7 35. Re7 Rxe7 36. Rxe7 Kf8 37. Rc7 c4 38. Kf1 Ke8 39. Ke2 Rd7 40. Rxd7 Kxd7 41. Ke3 Kd6 42. Kd4 h6 43. f4 f6 44. Be4 g5 45. f5 a5 46. a4 1-0

[Event "Santa Rosa La Pampa op 7th"]
[Site "Santa Rosa La Pampa"]
[Date "2024.07.07"]
[Round "3"]
[White "Rivas, Marcelo"]
[Black "Nicosia, Mariano"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1826"]
[BlackElo "1554"]
[PlyCount "45"]
[EventDate "2024.07.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bg4 5. e3 Nbd7 6. cxd5 cxd5 7. Qb3 Qb6 8. Nxd5 Nxd5 9. Qxd5 e6 10. Qb5 Bxf3 11. gxf3 Bb4+ 12. Bd2 Bxd2+ 13. Kxd2 Qxb5 14. Bxb5 Ke7 15. Rac1 Rac8 16. f4 Nb6 17. Bd3 g6 18. Rxc8 Nxc8 19. Rc1 Nd6 20. e4 Rc8 21. e5 Rxc1 22. exd6+ Kxd6 23. Kxc1 1-0

[Event "Santa Rosa La Pampa op 7th"]
[Site "Santa Rosa La Pampa"]
[Date "2024.07.07"]
[Round "5"]
[White "Rivas, Marcelo"]
[Black "Vera, Ruben Gabriel"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "1826"]
[BlackElo "1712"]
[PlyCount "51"]
[EventDate "2024.07.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. a3 Ba5 6. dxc5 Qe7 7. b4 Bc7 8. Nf3 h6 9. Nb5 d6 10. Bf4 e5 11. cxd6 Bxd6 12. Nxd6+ Qxd6 13. Bxe5 Qe7 14. c5 Nc6 15. Bd6 Qe4 16. Qb3 a6 17. e3 Bd7 18. Be2 0-0-0 19. 0-0 Bg4 20. Rfd1 Qg6 21. b5 Rxd6 22. cxd6 Bh3 23. Bf1 axb5 24. Qxb5 Ne4 25. Rac1 Bd7 26. Ne5 1-0

[Event "Santa Rosa La Pampa op 7th"]
[Site "Santa Rosa La Pampa"]
[Date "2024.07.06"]
[Round "2"]
[White "Needleman, Alejandro"]
[Black "Rivas, Marcelo"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2217"]
[BlackElo "1826"]
[PlyCount "45"]
[EventDate "2024.07.06"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 221 Extra"]
[Source "ChessBase"]
[SourceDate "2024.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2024.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. 0-0 Nf6 5. Re1 Nc6 6. c3 Be7 7. Bb3 a6 8. d4 cxd4 9. cxd4 0-0 10. Nc3 b5 11. d5 Na5 12. dxe6 fxe6 13. Nd4 Nc4 14. a4 Bd7 15. axb5 axb5 16. Rxa8 Qxa8 17. Ndxb5 Bxb5 18. Nxb5 Qc6 19. Nd4 Qc8 20. Qd3 d5 21. exd5 exd5 22. Rxe7 Ng4 23. Ne6 1-0

[Event "Santa Rosa Villarreal Memorial 29th"]
[Site "Santa Rosa"]
[Date "2023.12.10"]
[Round "7"]
[White "Frank, Mario Alberto"]
[Black "Rivas, Marcelo"]
[Result "1-0"]
[ECO "D63"]
[WhiteElo "2100"]
[BlackElo "1728"]
[PlyCount "105"]
[EventDate "2023.12.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 d5 3. d4 Nf6 4. Nf3 e6 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. 0-0 Re8 9. a3 Nf8 10. b4 N6d7 11. Bxe7 Qxe7 12. b5 Nf6 13. bxc6 bxc6 14. c5 Ng6 15. Bxg6 hxg6 16. Qa4 Bd7 17. Ne5 Rec8 18. Rab1 Be8 19. Rb2 Nh5 20. Rfb1 f6 21. Nf3 e5 22. g4 e4 23. Ne1 Qe6 24. gxh5 Qg4+ 25. Ng2 Qxh5 26. Rb7 g5 27. Re7 Rcb8 28. Reb7 Rd8 29. Qd1 Qh6 30. Qg4 Bh5 31. Qe6+ Kh8 32. Qxc6 Bg4 33. Qc7 Rd7 34. Rb8+ Rxb8 35. Rxb8+ Kh7 36. Qc8 Kg6 37. Qe8+ Kh7 38. Qh8+ Kg6 39. Qxh6+ gxh6 40. Ne1 Bh3 41. f3 f5 42. Nb5 f4 43. Kf2 Re7 44. fxe4 Rxe4 45. exf4 Rxf4+ 46. Kg3 Bf5 47. c6 Re4 48. Nf3 Re2 49. Nd6 h5 50. Nxf5 Kxf5 51. c7 h4+ 52. Nxh4+ gxh4+ 53. Kf3 1-0

[Event "Santa Rosa Villarreal Memorial 29th"]
[Site "Santa Rosa"]
[Date "2023.12.09"]
[Round "3"]
[White "Ardiles, Manuel"]
[Black "Rivas, Marcelo"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1755"]
[BlackElo "1728"]
[PlyCount "28"]
[EventDate "2023.12.08"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ARG"]
[SourceTitle "CBM 217 Extra"]
[Source "ChessBase"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4 d6 5. Nc3 Nc6 6. Bxd3 g6 7. Nf3 Bg7 8. 0-0 e6 9. Qe2 a6 10. Bg5 Qc7 11. Rac1 Ne5 12. Rfd1 Ne7 13. b3 Bd7 14. Bb1 Bc6 1-0

