[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.13"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Pastor Carvajal, Jeigoth"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2216"]
[BlackElo "1995"]
[PlyCount "88"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 c5 5. e3 Nc6 6. cxd5 exd5 7. Bb5 Bd6 8. 0-0 0-0 9. d4 Bg4 10. dxc5 Bxc5 11. h3 Bh5 12. Nc3 a6 13. Be2 Ba7 14. Nh4 Bg6 15. Nxg6 hxg6 16. Bf3 d4 17. exd4 Qxd4 18. Na4 Qxd1 19. Rfxd1 Rfd8 20. Kf1 Rac8 21. Rac1 Rxd1+ 22. Rxd1 b5 23. Rc1 bxa4 24. Rxc6 Rxc6 25. Bxc6 axb3 26. axb3 a5 27. Ke2 Nh7 28. Bc3 Bb6 29. f3 Nf8 30. Bd5 g5 31. Kd3 Ng6 32. Kc4 Nf4 33. g4 Kf8 34. Be4 Ne6 35. Kb5 Bd8 36. Bd3 Ke7 37. Bc4 Nf4 38. Bxa5 Bxa5 39. Kxa5 Nxh3 40. b4 Ng1 41. Bd5 Kd6 42. b5 Kxd5 43. b6 Nxf3 44. b7 Nd4 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.13"]
[Round "7"]
[White "Mata Tencio, Randall"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1906"]
[BlackElo "2216"]
[PlyCount "68"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. c4 Nf6 5. Nc3 g6 6. 0-0 Bg7 7. b3 0-0 8. Bb2 d6 9. d4 cxd4 10. Qxd4 Nbd7 11. Rfd1 a6 12. Qh4 Rc8 13. Rac1 Rc5 14. Na4 Rh5 15. Qd4 b5 16. cxb5 axb5 17. Nc3 Qa8 18. Qb4 Ne5 19. Nxb5 Nxf3+ 20. exf3 Rb8 21. Nc7 Qxa2 22. Bc3 Nd7 23. Ra1 Qc2 24. Bxg7 Qxc7 25. Rac1 Rc5 26. Bb2 Ba8 27. Qd4 f6 28. Qe3 e5 29. Ba3 Rxc1 30. Rxc1 Qb7 31. Bxd6 Rc8 32. Rxc8+ Qxc8 33. f4 Bxg2 34. Kxg2 Qc6+ 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.11"]
[Round "6"]
[White "Arias Santana, Mauricio"]
[Black "Rodriguez Arrieta, Maria Elena"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2216"]
[BlackElo "1915"]
[PlyCount "21"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 8. Nc3 0-0-0 9. Be3 Ne7 10. 0-0-0 Ng6 11. Nde2 1/2-1/2

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.10"]
[Round "5"]
[White "Hernandez Perez, Javier Francisco"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1309"]
[BlackElo "2216"]
[PlyCount "38"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. g3 Bf5 4. Bg2 e6 5. 0-0 h6 6. c4 c6 7. Bf4 Nbd7 8. Nbd2 Be7 9. Re1 Nh5 10. e4 dxe4 11. Nxe4 Nxf4 12. gxf4 0-0 13. Ne5 Qc7 14. d5 exd5 15. cxd5 cxd5 16. Qxd5 Be6 17. Qd4 Nxe5 18. fxe5 Rfd8 19. Rec1 Qxc1+ 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.09"]
[Round "4"]
[White "Arias Santana, Mauricio"]
[Black "Canales Chinchilla, Victoria"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2216"]
[BlackElo "1683"]
[PlyCount "51"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. Nb5 Bd6 5. Nxd6+ cxd6 6. e3 0-0 7. Nf3 h6 8. g4 Ne4 9. h4 e5 10. dxe5 Bxg4 11. Be2 Qb6 12. Qd4 Qa5+ 13. b4 Qa4 14. Qb2 Na6 15. a3 Rac8 16. Nd4 Bxe2 17. Kxe2 Rc4 18. Rhg1 Rfc8 19. Rac1 Rxd4 20. exd4 Qb5+ 21. c4 dxc4 22. Ke3 c3 23. Qe2 Qd5 24. Qg4 g6 25. Qxc8+ Kh7 26. h5 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2024.01.07"]
[Round "3"]
[White "Lizano Quiros, Matias Haziel"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "1801"]
[BlackElo "2216"]
[PlyCount "58"]
[EventDate "2024.01.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "CB05_2024"]
[SourceDate "2024.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 Qa5 7. e5 b4 8. Nb5 Ne4 9. Bd3 Ba6 10. Bxe4 Qxb5 11. Nf3 d6 12. a4 Qb7 13. b3 Nd7 14. Bb2 Rd8 15. e6 fxe6 16. Ng5 Nf6 17. Bxf6 exf6 18. dxe6 d5 19. Nf7 Qc7 20. Bd3 Bxd3 21. Qxd3 Be7 22. Qb5+ Kf8 23. Nxd8 Qe5+ 24. Kd2 Qc3+ 25. Ke2 Qb2+ 26. Ke3 Qe5+ 27. Kd2 Qb2+ 28. Ke3 Qe5+ 29. Kd2 Qb2+ 1/2-1/2

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.04"]
[Round "9"]
[White "Arias Santana, Mauricio"]
[Black "Tao, Sihan"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2261"]
[BlackElo "2090"]
[PlyCount "28"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. b3 d5 4. Bb2 Be7 5. g3 0-0 6. Bg2 c5 7. cxd5 Nxd5 8. 0-0 Nc6 9. d4 cxd4 10. Nxd4 Nxd4 11. Qxd4 Bf6 12. Qd2 Nf4 13. gxf4 Qxd2 14. Nxd2 Bxb2 1-0

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.03"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Sathish, Pranav"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2261"]
[BlackElo "2448"]
[PlyCount "25"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[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 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. dxe5 Nxb5 7. a4 Nbd4 8. Nxd4 Nxd4 9. Qxd4 d5 10. exd6 Qxd6 11. Qe4+ Qe6 12. Qd4 Qd6 13. Qe4+ 1/2-1/2

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.03"]
[Round "6"]
[White "Atwell, Rose"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2171"]
[BlackElo "2261"]
[PlyCount "50"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 0-0 8. Qd2 Nd7 9. 0-0-0 c6 10. Bd3 d5 11. h4 Nc5 12. h5 Re8 13. h6 g6 14. Rhe1 Nxd3+ 15. Qxd3 Bf5 16. Qd2 Qa5 17. Kb1 Bf8 18. Nd4 Bd7 19. Nb3 Qb5 20. Qd4 Qb6 21. Qh4 Qd8 22. Bg5 Qc7 23. Bf4 Qd8 24. Bg5 Qc7 25. Bf4 Qd8 1/2-1/2

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.02"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Karthi, Jashith"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2261"]
[BlackElo "1979"]
[PlyCount "87"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 a6 4. cxd5 exd5 5. Nc3 Nf6 6. Bg5 Be6 7. e3 Nbd7 8. Bd3 c6 9. Qc2 Bd6 10. h3 Qc7 11. Ne2 Qa5+ 12. Nd2 Ne4 13. Bxe4 dxe4 14. Bf4 Bb4 15. a3 Bxd2+ 16. Qxd2 Qxd2+ 17. Kxd2 f5 18. Rac1 0-0 19. f3 Nb6 20. Rhf1 Bc4 21. Bc7 Bxe2 22. Kxe2 Nd5 23. Be5 h5 24. Rf2 g5 25. Rcf1 f4 26. fxe4 Nxe3 27. Rc1 Nxg2 28. Rg1 g4 29. hxg4 f3+ 30. Rxf3 Rxf3 31. Kxf3 Nh4+ 32. Ke3 Kh7 33. gxh5 Rf8 34. Bf4 Re8 35. Rg5 b5 36. Bg3 Ng2+ 37. Kf3 b4 38. axb4 Kh6 39. Rc5 Re6 40. Kxg2 Rxe4 41. Rxc6+ Kxh5 42. Kf3 Rxd4 43. Bf4 Rd3+ 44. Be3 1-0

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.02"]
[Round "4"]
[White "Sivakumar, Shaaketh"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2337"]
[BlackElo "2261"]
[PlyCount "128"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 d5 4. Bf4 Nc6 5. e3 cxd4 6. exd4 Bg4 7. Nbd2 e6 8. Qb3 Qc8 9. Bd3 Be7 10. 0-0 Bh5 11. Rfe1 Bg6 12. Qc2 a6 13. Bxg6 hxg6 14. Qd3 Nh5 15. Bg5 Qd8 16. Qe3 Bxg5 17. Nxg5 Qf6 18. g3 0-0 19. f4 Rfe8 20. Ndf3 Qf5 21. Nh4 Qg4 22. Kg2 Nf6 23. h3 Qh5 24. Nhf3 Nd7 25. g4 Qh6 26. Re2 Nf8 27. Qd3 Re7 28. Rae1 Rae8 29. Kg3 Na5 30. b3 Rc8 31. h4 Rec7 32. Rc1 b5 33. Rh2 f6 34. Ng1 Nb7 35. N5h3 Nd6 36. Nf2 f5 37. g5 Qh5 38. Ne2 b4 39. Kg2 bxc3 40. Ng3 Qh7 41. Rc2 Rc6 42. Qe3 Ne4 43. Nfxe4 fxe4 44. Kh3 R8c7 45. Rh1 Kh8 46. Kg4 e5 47. h5 Kg8 48. dxe5 gxh5+ 49. Rxh5 Qg6 50. f5 Qe8 51. Qd4 Qd7 52. Kf4 g6 53. Rh6 gxf5 54. Rch2 Ne6+ 55. Rxe6 Rxe6 56. Rc2 Rec6 57. Nxf5 Qe6 58. Nh6+ Kh7 59. Kg3 Rg7 60. Rh2 Rxg5+ 61. Kf4 Kg6 62. Qd1 Qxe5+ 63. Ke3 Qxh2 64. Qf1 Qd2# 0-1

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.01"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Yan, Nathan"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2261"]
[BlackElo "2118"]
[PlyCount "79"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 Bf5 4. g3 e6 5. Bg2 h6 6. d3 Be7 7. c4 0-0 8. 0-0 c5 9. Ne5 Nbd7 10. Nd2 Qc7 11. Nxd7 Qxd7 12. e4 Bh7 13. Qe2 dxc4 14. Nxc4 Rfd8 15. Rad1 Qc7 16. f4 Nd7 17. g4 f6 18. g5 hxg5 19. fxg5 b5 20. Qg4 Kf7 21. Ne3 Bd6 22. gxf6 gxf6 23. Qh4 Kg8 24. Ng4 e5 25. Nh6+ Kg7 26. Rf3 Rh8 27. Rdf1 Bg6 28. Bc1 Be7 29. Rg3 Nf8 30. Bh3 Qd8 31. Bf5 Qe8 32. Kh1 c4 33. Rfg1 Bc5 34. Rxg6+ Nxg6 35. Rxg6+ Qxg6 36. Bxg6 Kxg6 37. Qg4+ Kh7 38. Nf5 Bf8 39. Qh5+ Kg8 40. Qg6+ 1-0

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.07.01"]
[Round "2"]
[White "Wang, Isaac"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2353"]
[BlackElo "2261"]
[PlyCount "82"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. Qc2 Nbd7 11. Rd1 a6 12. h4 g4 13. Ne5 Rg8 14. Nxd7 Qxd7 15. e5 Nh5 16. 0-0 c5 17. d5 exd5 18. b3 Qe6 19. bxc4 dxc4 20. Rfe1 Rd8 21. a4 Rxd1 22. Rxd1 Nxg3 23. fxg3 b4 24. Ne4 Be7 25. Bxc4 Qxe5 26. Qf2 Rg7 27. Nd6+ Bxd6 28. Re1 Be4 29. Bd3 f5 30. Bxe4 fxe4 31. Qe2 c4 32. Kh1 Re7 33. Qxc4 Qe6 34. Qxa6 Kf7 35. Rf1+ Kg7 36. Qa8 Rf7 37. Rxf7+ Kxf7 38. Qh8 Kg6 39. Qd4 e3 40. Qd3+ Kg7 41. Qd4+ Kf7 0-1

[Event "Sunnyvale Independence Day op"]
[Site "Sunnyvale"]
[Date "2023.06.30"]
[Round "1"]
[White "Liang, Yu Cheng"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "2226"]
[BlackElo "2261"]
[PlyCount "83"]
[EventDate "2023.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 c6 8. Rc1 Nd7 9. Bd3 0-0 10. 0-0 dxc4 11. Bxc4 g6 12. Qc2 Qe7 13. Rfd1 Bg7 14. e4 e5 15. d5 Nb6 16. dxc6 bxc6 17. Bb3 Bg4 18. Qe2 Rad8 19. h3 Bc8 20. Na4 Rxd1+ 21. Qxd1 Rd8 22. Qe2 Rf8 23. Qd1 Rd8 24. Qe2 Qf6 25. Qe3 Rd6 26. Nxb6 axb6 27. Qxb6 Bxh3 28. Qc7 Bd7 29. Qb8+ Bf8 30. Rd1 Kg7 31. Qc7 Rxd1+ 32. Bxd1 Bg4 33. Qb6 Qd6 34. Be2 Bxf3 35. Bxf3 Qd2 36. Qxc6 Qe1+ 37. Kh2 Qxf2 38. Qc3 Kh7 39. Qxe5 Qh4+ 40. Kg1 Bg7 41. Qd5 Qe1+ 42. Kh2 1/2-1/2

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.24"]
[Round "9"]
[White "Jimenez Garcia, Emanuel"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2383"]
[BlackElo "2317"]
[PlyCount "63"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. b3 Nc6 3. Bb2 Nf6 4. e3 e6 5. c4 b6 6. Be2 Bb7 7. 0-0 Be7 8. d4 cxd4 9. Nxd4 0-0 10. Nc3 a6 11. Bf3 Rc8 12. Rc1 d6 13. Nde2 Rc7 14. Ng3 Ne5 15. Bxb7 Rxb7 16. f4 Ned7 17. Nce4 Qc7 18. f5 e5 19. Ba3 Nc5 20. Bxc5 dxc5 21. Nxf6+ Bxf6 22. Ne4 Qc6 23. Qd5 Qxd5 24. cxd5 Rd8 25. Rfd1 Rbd7 26. d6 Kf8 27. g4 h6 28. Rd5 Ke8 29. Kg2 Rb7 30. Kg3 Kd7 31. h4 Kc6 32. Rdd1 1-0

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.23"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Giron, Jorge Ernesto"]
[Result "0-1"]
[ECO "B56"]
[WhiteElo "2317"]
[BlackElo "2323"]
[PlyCount "91"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[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 Bd7 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 h6 9. Be3 Ng4 10. f4 Nxe3 11. Qxe3 Be7 12. Kb1 Nc6 13. f5 Ne5 14. fxe6 fxe6 15. Qh3 Qc8 16. Qh5+ g6 17. Qh3 b5 18. Nce2 Nf7 19. Qg3 g5 20. h4 Bf6 21. Qf2 Ke7 22. g3 Qc5 23. Bh3 Ne5 24. Nc1 Nc4 25. Ncb3 Qb6 26. e5 Bxe5 27. Rhe1 Rhf8 28. Qe2 Rf6 29. hxg5 hxg5 30. Qh5 Raf8 31. Qxg5 a5 32. c3 b4 33. Bf1 Nxb2 34. Kxb2 bxc3+ 35. Kxc3 a4 36. Bc4 axb3 37. axb3 Qa5+ 38. Kd3 Qc5 39. Nf3 Rg8 40. Qxg8 Rxf3+ 41. Kc2 Qf2+ 42. Re2 Rc3+ 43. Kd2 Qf5 44. Rxe5 Rc2+ 45. Ke3 Qxe5+ 46. Kf3 0-1

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.23"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2317"]
[BlackElo "2505"]
[PlyCount "92"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Qf3 Nf6 7. Qg3 Qxg3 8. hxg3 d6 9. f3 b5 10. g4 g6 11. Bh6 Bb7 12. 0-0-0 Nbd7 13. Nb3 Bxh6+ 14. Rxh6 Ke7 15. Na5 Rab8 16. g5 Nh5 17. g4 Nf4 18. Ne2 Nxe2+ 19. Bxe2 e5 20. Nxb7 Rxb7 21. a4 bxa4 22. Bxa6 Rc7 23. Rdh1 Ra8 24. Be2 Nf8 25. Kb1 Rb8 26. Bd1 Rcb7 27. b3 axb3 28. cxb3 Ne6 29. Rxh7 Nxg5 30. Rh8 Nxf3 31. Rxb8 Rxb8 32. Kb2 Nd4 33. Kc3 Rc8+ 34. Kb2 Ke6 35. g5 Ke7 36. Rh2 Rb8 37. Kc3 Ne6 38. Rg2 Rc8+ 39. Kd2 Rh8 40. b4 Rb8 41. Kc3 Rc8+ 42. Kb3 Nd4+ 43. Kb2 Rc4 44. Ka3 Nb5+ 45. Ka4 Nc3+ 46. Kb3 Nxd1 0-1

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.21"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Minero Pineda, Sergio"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2317"]
[BlackElo "2344"]
[PlyCount "19"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 Be7 7. e3 0-0 8. Qc2 c6 9. Bd3 Re8 10. 0-0 1/2-1/2

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.21"]
[Round "4"]
[White "Duran Vega, Sergio"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2376"]
[BlackElo "2317"]
[PlyCount "59"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 Bf5 8. Re1 Nd6 9. Bg5 f6 10. Bf4 Bxd3 11. Qxd3 0-0 12. Qb3 c6 13. Bxd6 Bxd6 14. Qxb7 Qb6 15. Qxb6 axb6 16. Nbd2 b5 17. a3 Kf7 18. b4 Nd7 19. Nb3 Ra6 20. Nc5 Bxc5 21. dxc5 Rfa8 22. Nd4 Ne5 23. f4 Nc4 24. Re6 Rc8 25. Rae1 Nxa3 26. Re7+ Kg6 27. R1e3 Rg8 28. Rg3+ Kh5 29. Rexg7 Rxg7 30. Rxg7 1-0

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.20"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Valdes Romero, Leonardo"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "2317"]
[BlackElo "2400"]
[PlyCount "126"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[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 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 0-0 9. 0-0-0 d5 10. Nxc6 bxc6 11. Bh6 Qb6 12. Bxg7 Kxg7 13. exd5 Rd8 14. Qe1 cxd5 15. Qxe7 Be6 16. Qa3 d4 17. Ne4 Nxe4 18. fxe4 Rac8 19. Bd3 Rc5 20. b3 a5 21. h3 a4 22. b4 Rg5 23. g4 Rd7 24. Kb1 Rc5 25. b5 Bc4 26. Ka1 Qxb5 27. Rb1 Qa5 28. Qb4 Qxb4 29. Rxb4 Bxd3 30. cxd3 Rc3 31. Rd1 a3 32. Kb1 Kf6 33. Rb5 h6 34. h4 Ke6 35. Rb6+ Rd6 36. Rb5 Rdc6 37. h5 gxh5 38. gxh5 f6 39. Rb4 Ke5 40. Rb8 Kf4 41. Rg8 Rb6+ 42. Ka1 Rb2 43. Rf1+ Ke5 44. Re8+ Kd6 45. Ra8 Rf2 46. Ra6+ Kc7 47. Rd1 Rxd3 48. Rg1 Rg3 49. Rd1 Rgf3 50. Kb1 Rb2+ 51. Ka1 Rd2 52. Rg1 Rg3 53. Rf1 Rgd3 54. Kb1 Rb2+ 55. Ka1 Rbd2 56. Kb1 Rc3 57. Ra7+ Kd6 58. Ra5 Ke6 59. Ka1 Rdc2 60. Rb1 d3 61. Rb6+ Rc6 62. Rxc6+ Rxc6 63. Kb1 d2 0-1

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.20"]
[Round "2"]
[White "Gomez Garrido, Camilo Ernesto"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2478"]
[BlackElo "2317"]
[PlyCount "43"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 Nf6 6. 0-0 Be7 7. h3 0-0 8. c3 Re8 9. Bc2 Bf8 10. d4 c6 11. Bg5 h6 12. Bh4 b6 13. Nbd2 Ba6 14. Re1 Nbd7 15. Ne4 Be7 16. Ng3 Bf8 17. Qd2 g6 18. Ne4 Nxe4 19. Bxd8 Nxd2 20. Rxe8 Nxf3+ 21. gxf3 Nf6 22. Rxf8+ 1-0

[Event "San Jose Gutierrez Mangel Cup"]
[Site "San Jose"]
[Date "2022.12.19"]
[Round "1"]
[White "Arias Santana, Mauricio"]
[Black "Vera Siguenas, Deivy Anthoni"]
[Result "1/2-1/2"]
[ECO "B68"]
[WhiteElo "2317"]
[BlackElo "2480"]
[PlyCount "143"]
[EventDate "2022.12.19"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "CRI"]
[EventCategory "6"]
[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 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 Be7 10. Nf3 b5 11. e5 b4 12. exf6 bxc3 13. Qxc3 gxf6 14. Bh4 d5 15. Kb1 Nb4 16. Qd2 Rb8 17. c3 Nc6 18. Ka1 Qa5 19. Nd4 Nxd4 20. Qxd4 Ba4 21. Qa7 0-0 22. Rd3 Qd8 23. Rg3+ Kh8 24. Qd4 Bc2 25. Bd3 Bxd3 26. Qxd3 Qb6 27. b3 Rg8 28. Rxg8+ Rxg8 29. g3 Rc8 30. g4 Kg8 31. Rf1 Qc5 32. Be1 a5 33. Bd2 Bf8 34. Be3 Qc7 35. g5 fxg5 36. Rg1 f6 37. Bd4 Bg7 38. fxg5 f5 39. g6 h6 40. Bxg7 Qxg7 41. Kb2 Qe5 42. Rg2 Qe4 43. Qd2 f4 44. h4 Qe5 45. Re2 Qf6 46. h5 Rf8 47. Qd3 f3 48. Rf2 Qf5 49. Qa6 Qf6 50. Qa7 Qg7 51. Qe3 d4 52. Qxe6+ Kh8 53. Qc4 dxc3+ 54. Qxc3 Rf5 55. Kc2 Qxc3+ 56. Kxc3 Kg7 57. a3 Rxh5 58. Rxf3 Kxg6 59. Kc4 Re5 60. Rd3 h5 61. Rd8 h4 62. Rg8+ Kf5 63. b4 axb4 64. axb4 h3 65. b5 Re1 66. Rh8 Kg4 67. b6 Rb1 68. Kc5 Kg3 69. Rg8+ Kf2 70. Rh8 Kg2 71. Rg8+ Kf2 72. Rh8 1/2-1/2

[Event "US Masters op"]
[Site "Charlotte"]
[Date "2022.11.27"]
[Round "8"]
[White "Hambleton, Aman"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2437"]
[BlackElo "2317"]
[PlyCount "158"]
[EventDate "2022.11.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 cxd4 6. exd4 Bf5 7. Qb3 Qc8 8. Ngf3 e6 9. Nh4 Be4 10. Nxe4 Nxe4 11. Nf3 Bd6 12. Bxd6 Nxd6 13. Bd3 Qc7 14. 0-0 0-0 15. a4 Rfc8 16. Rfe1 h6 17. Qd1 a6 18. Qe2 Rab8 19. g4 Qe7 20. h4 g6 21. Qe3 Kg7 22. Kg2 Rd8 23. g5 h5 24. Ne5 Nxe5 25. Qxe5+ Kg8 26. Qxd5 Nf5 27. Qe4 Qc7 28. Kh3 b5 29. axb5 axb5 30. Qe5 Qc6 31. Be4 Qd7 32. Bxf5 exf5 33. Kg3 b4 34. Rad1 bxc3 35. bxc3 Rbc8 36. d5 Rc5 37. f3 Rxd5 38. Rxd5 Qxd5 39. Qxd5 Rxd5 40. Re8+ Kg7 41. Rc8 Rd2 42. Kf4 Rh2 43. Kg3 Rc2 44. c4 Rc1 45. Kf4 Rh1 46. Kg3 Rg1+ 47. Kf4 Rh1 48. Kg3 Rg1+ 49. Kh2 Rc1 50. c5 f4 51. c6 Rc2+ 52. Kg1 Re2 53. Kf1 Re3 54. Kf2 Re6 55. Kg2 Re2+ 56. Kg1 Re3 57. Kf2 Re6 58. c7 Rc6 59. Ke2 Rc3 60. Kd2 Rc4 61. Kd3 Rc1 62. Kd4 Rc2 63. Ke5 Rc1 64. Kxf4 Rc4+ 65. Ke5 Rc1 66. f4 Re1+ 67. Kd4 Rc1 68. Ke3 Rc6 69. Kd4 Rc1 70. f5 gxf5 71. Ke5 Re1+ 72. Kxf5 Rc1 73. Ke5 Re1+ 74. Kd6 Rd1+ 75. Ke7 Re1+ 76. Kd8 Rd1+ 77. Ke8 Re1+ 78. Kd8 Rd1+ 79. Ke8 Re1+ 1/2-1/2

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.11"]
[Round "9"]
[White "Medarde Santiago, Luis Marcos"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2370"]
[BlackElo "2368"]
[PlyCount "89"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Nxc3 7. bxc3 Nf6 8. 0-0 Be7 9. c4 dxc4 10. Bxc4 0-0 11. Re1 c6 12. Bg5 Be6 13. Bxe6 fxe6 14. Qe2 Nd5 15. Bxe7 Qxe7 16. g3 Rfe8 17. c4 Nf6 18. Qb2 Nd7 19. Nf3 b6 20. Re3 Rad8 21. Qe2 Qf6 22. Re1 Nf8 23. h4 Rd6 24. Re4 Red8 25. Rf4 Qe7 26. h5 Nd7 27. h6 Rf8 28. Rg4 g6 29. Re4 Nf6 30. Rf4 Nd7 31. Rxf8+ Qxf8 32. Ng5 Qe7 33. Qe3 Nf6 34. a4 Ng4 35. Qf4 Nxh6 36. Ne4 Nf5 37. Nxd6 Nxd6 38. d5 cxd5 39. cxd5 e5 40. Rxe5 Qd7 41. Qf6 Nf5 42. Qc6 Qf7 43. d6 Qb3 44. Qd5+ Qxd5 45. Rxd5 1-0

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.10"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Petkov, Vladimir"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2368"]
[BlackElo "2451"]
[PlyCount "119"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 0-0 6. Nf3 b6 7. 0-0 Bb7 8. Bg5 Be7 9. Nc3 h6 10. Bxf6 Bxf6 11. Qc2 d6 12. Ng5 hxg5 13. Bxb7 Ra7 14. Bg2 c6 15. Rfd1 g6 16. d5 Bxc3 17. Qxc3 cxd5 18. cxd5 e5 19. a3 a4 20. Qb4 Ra5 21. Rac1 Na6 22. Qd2 Nc5 23. Rc4 f5 24. Qb4 g4 25. f4 e4 26. Kf2 Ra7 27. Ke3 Rh7 28. Rh1 g5 29. Qb5 gxf4+ 30. gxf4 Qf6 31. Rb4 Rb8 32. Rc4 Kg7 33. Bf1 Kg6 34. h3 Rbh8 35. Rg1 Rxh3+ 36. Bxh3 Rxh3+ 37. Kd2 Rb3 38. Qe8+ Kg7 39. Rh1 Rxb2+ 40. Ke3 Rb3+ 41. Kf2 Rh3 42. Rxh3 gxh3 43. Qh5 Qb2 44. Qg5+ Kf7 45. Qxf5+ Ke7 46. Qh7+ Kd8 47. Qh4+ Kc7 48. Qxh3 Qd2 49. Qh7+ Kb8 50. Rxe4 Nxe4+ 51. Qxe4 b5 52. Qe8+ Ka7 53. Qd7+ Ka8 54. Qc8+ Ka7 55. Qc7+ Ka8 56. Qxd6 Qd4+ 57. Kf3 Qc3+ 58. e3 Qc4 59. f5 b4 60. Qxb4 1-0

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.09"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Sanchez Aller, Fernando"]
[Result "1-0"]
[ECO "E70"]
[WhiteElo "2368"]
[BlackElo "2232"]
[PlyCount "79"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 a6 6. Nge2 c5 7. d5 b5 8. cxb5 0-0 9. a4 axb5 10. Bxb5 Ne8 11. Ra3 Nc7 12. 0-0 Bd7 13. Bg5 Nba6 14. Qd2 Nb4 15. Bc4 Ra5 16. Rc1 Re8 17. Bh6 Bf6 18. Bg5 Bg7 19. h3 Qa8 20. f4 Bc8 21. Nb5 Qb8 22. e5 Nxb5 23. Bxb5 Rxb5 24. axb5 Qxb5 25. Nc3 Qb8 26. exd6 exd6 27. Re1 Bf5 28. Rxe8+ Qxe8 29. Qe2 Qxe2 30. Ra8+ Bf8 31. Nxe2 Kg7 32. Nc3 h5 33. Rb8 Bc2 34. Bh6+ Kxh6 35. Rxf8 Kg7 36. Rd8 Nd3 37. Rxd6 Nxb2 38. Rd8 Bf5 39. d6 Nc4 40. Na4 1-0

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.08"]
[Round "6"]
[White "Gonzalez Perez, Arian"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2389"]
[BlackElo "2368"]
[PlyCount "99"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 Be7 6. Bg5 Nbd7 7. e3 0-0 8. Bd3 Re8 9. Qc2 h6 10. Bf4 a6 11. h3 c5 12. dxc5 Nxc5 13. Be2 Be6 14. Rd1 Rc8 15. Qb1 Qa5 16. 0-0 Nce4 17. Be5 Bb4 18. Rc1 b5 19. Qa1 Nd7 20. Bd4 Nxc3 21. bxc3 Bf8 22. Nd2 Qa3 23. Nb3 Rc6 24. Qb1 Nc5 25. Nxc5 Bxc5 26. Bxc5 Rxc5 27. Qb4 Qxb4 28. cxb4 Rxc1 29. Rxc1 d4 30. exd4 Bxa2 31. Bf3 Rd8 32. Rd1 Bb3 33. Rd2 Kf8 34. Kf1 Bc4+ 35. Ke1 Ke7 36. Kd1 Rc8 37. Bb7 Rc7 38. Be4 Bb3+ 39. Ke2 Rc4 40. Kd3 Rxb4 41. Kc3 a5 42. Rb2 Bc4 43. Rxb4 axb4+ 44. Kxb4 Kd6 45. g3 Bd5 46. Bc2 Be6 47. Be4 Bxh3 48. Kxb5 Be6 49. Kb4 g5 50. Kc3 1/2-1/2

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.07"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Martinez Ramos, Marcos Javier"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2368"]
[BlackElo "1922"]
[PlyCount "91"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 c5 2. Nf3 cxd4 3. Nxd4 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nb3 Nf6 7. 0-0 0-0 8. c4 d6 9. Nc3 Be6 10. c5 d5 11. Bg5 d4 12. Nb5 h6 13. Bxf6 Bxf6 14. Qd2 Kg7 15. Rfd1 Bxb3 16. axb3 a6 17. Bxc6 bxc6 18. Nxd4 Qd5 19. Qe3 Rfb8 20. b4 Rd8 21. Nb3 Qc4 22. Rxd8 Rxd8 23. Na5 Qxb4 24. Nxc6 Qxb2 25. Nxd8 Qxa1+ 26. Kg2 Qa5 27. Nb7 Qc7 28. Qe4 a5 29. c6 Be5 30. Qd5 a4 31. f4 a3 32. Qxe5+ Qxe5 33. fxe5 a2 34. c7 a1Q 35. c8Q Qxe5 36. Qc4 h5 37. Nd8 e6 38. Nc6 Qc7 39. Qd4+ f6 40. Qa7 Qxa7 41. Nxa7 Kh6 42. Nc6 Kg5 43. h4+ Kg4 44. Nd8 e5 45. e4 f5 46. Nf7 1-0

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.06"]
[Round "4"]
[White "Alonso Rodriguez, Tristan"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "1843"]
[BlackElo "2368"]
[PlyCount "42"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 Bb4 7. Bg2 0-0 8. 0-0 Bxc3 9. bxc3 Qa5 10. Bb2 Ne5 11. Nb3 Qa4 12. c4 Nxc4 13. Bxf6 gxf6 14. Qg4+ Kh8 15. Qh4 Kg7 16. e5 fxe5 17. Qg5+ Kh8 18. Qf6+ Kg8 19. Be4 Qa3 20. Rae1 Nd6 21. f4 Qb4 1/2-1/2

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.05"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Almeida Quintana, Omar"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2368"]
[BlackElo "2513"]
[PlyCount "110"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 d6 6. c4 c6 7. Nc3 Qa5 8. d5 cxd5 9. Nxd5 Nxd5 10. cxd5 Na6 11. Re1 Nc5 12. e4 Bg4 13. Re3 Rfc8 14. Bd2 Qa4 15. Bc3 Qxd1+ 16. Rxd1 Bxc3 17. Rxc3 Nxe4 18. Re3 Ng5 19. Rde1 Nxf3+ 20. Bxf3 Bxf3 21. Rxf3 Rc7 22. Rfe3 Kf8 23. R1e2 a5 24. g4 a4 25. a3 Ra5 26. Rd3 Rac5 27. Ree3 Rb5 28. Rd4 Rxb2 29. Rxa4 b5 30. Ra8+ Kg7 31. Rb8 Rc1+ 32. Kg2 Rcc2 33. Rf3 Rc4 34. h3 Re4 35. Rb7 h6 36. Kg3 h5 37. Rd3 f5 38. f3 f4+ 39. Kh4 Re5 40. g5 Rg2 41. Rc3 Rgxg5 42. Rxe7+ Kf6 43. Rxe5 Rxe5 44. Rc8 Rxd5 45. Rg8 Rd3 46. Rb8 Rxf3 47. Rxb5 Rxa3 48. Rd5 g5+ 49. Kxh5 Rxh3+ 50. Kg4 Rg3+ 51. Kh5 Ke6 52. Ra5 f3 53. Ra3 f2 54. Rxg3 f1Q 55. Kxg5 Qf2 0-1

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.04"]
[Round "2"]
[White "Arias Rodriguez, Manuel Ramon"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "E63"]
[WhiteElo "1864"]
[BlackElo "2368"]
[PlyCount "102"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 a6 8. Bf4 Rb8 9. Qd2 Re8 10. Rac1 Bd7 11. d5 Na5 12. b3 c5 13. e4 b5 14. cxb5 axb5 15. e5 b4 16. exf6 bxc3 17. Qxc3 Bxf6 18. Qd2 Qb6 19. Be3 Ra8 20. Ng5 Reb8 21. Ne4 Bh8 22. Rfe1 Qb4 23. Qxb4 Rxb4 24. Bd2 Rbb8 25. Bc3 Bxc3 26. Nxc3 Kf8 27. Bf1 Rb4 28. Re4 Bf5 29. Rxb4 cxb4 30. Nb5 Nb7 31. Rc7 Nc5 32. Na7 Bb1 33. Bc4 Bxa2 34. Nc6 Bxb3 35. Bxb3 Nxb3 36. Nxb4 Nd4 37. Kg2 g5 38. Rc4 Nf5 39. Kf3 Kg7 40. Nc6 Ra3+ 41. Kg2 Kf6 42. h3 Rd3 43. Nb4 Rb3 44. Nc6 h5 45. Re4 Rc3 46. Nb4 Ra3 47. Nc6 Rb3 48. Nb4 e6 49. dxe6 fxe6 50. Nc6 Rb6 51. Nd4 d5 0-1

[Event "Sada Coruna op"]
[Site "Sada"]
[Date "2022.09.04"]
[Round "1"]
[White "Arias Santana, Mauricio"]
[Black "Longueira Alonso, Breixo"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "2368"]
[BlackElo "1642"]
[PlyCount "75"]
[EventDate "2022.09.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 210 Extra"]
[Source "ChessBase"]
[SourceDate "2022.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2022.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bb5+ Nbd7 9. Bf4 Qe7 10. 0-0 0-0 11. a4 a6 12. Bxd7 Bxd7 13. e5 dxe5 14. Bxe5 Bg4 15. Re1 Qd7 16. h3 Bxf3 17. Qxf3 Nh5 18. g4 Bxe5 19. Rxe5 Ng7 20. Ne4 f5 21. Nxc5 Qd6 22. Nd3 fxg4 23. Qxg4 Rae8 24. Rae1 Rxe5 25. Rxe5 Rf5 26. Qe4 Rxe5 27. Nxe5 b5 28. a5 Nf5 29. Nc6 Qc5 30. Kg2 Qc1 31. Ne7+ Nxe7 32. Qxe7 Qd2 33. Qe5 Qxa5 34. Qe8+ Kg7 35. d6 Qd2 36. Qe7+ Kg8 37. d7 Qd5+ 38. Kh2 1-0

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.09"]
[Round "11.1"]
[White "Arias Santana, Mauricio"]
[Black "Kulpruethanon, Thanadon"]
[Result "1/2-1/2"]
[ECO "C85"]
[WhiteElo "2318"]
[BlackElo "2294"]
[PlyCount "63"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Thailand"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "THA"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Nbd2 0-0 9. Nc4 f6 10. Nh4 g6 11. Bh6 Rf7 12. Nf3 Nf8 13. Kh1 Ne6 14. Qd2 b6 15. Rad1 a5 16. a4 Qe8 17. b3 Ba6 18. Ne3 Rd8 19. g3 Bc8 20. Kg2 Bb7 21. Qe2 Bf8 22. Bxf8 Qxf8 23. h4 h5 24. Kh2 Qg7 25. Nc4 Bc8 26. Qe3 c5 27. c3 Rfd7 28. Rd2 Ba6 29. Rfd1 Bxc4 30. dxc4 Rxd2 31. Rxd2 Rxd2 32. Qxd2 1/2-1/2

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.08"]
[Round "10.1"]
[White "Gajadin, Dewperkash"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1990"]
[BlackElo "2318"]
[PlyCount "46"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Surinam"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "SUR"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. 0-0 a5 7. d4 Ba7 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Qb3 0-0 11. Bg5 h6 12. Bh4 Qe7 13. Nd2 g5 14. Bg3 Nh5 15. Nf3 Nxg3 16. hxg3 Kg7 17. Rad1 c6 18. Rd2 h5 19. Kh2 Rh8 20. Nxe5 Qxe5 21. f4 gxf4 22. gxf4 Qe7 23. e5 Qh4# 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.07"]
[Round "9.1"]
[White "Weldegebriel Beraki, Kibrom"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "1793"]
[BlackElo "2318"]
[PlyCount "68"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Eritrea"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "ERI"]
[BlackTeamCountry "CRI"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. Bg5 d6 7. f3 Nbd7 8. e4 e6 9. Be2 a6 10. 0-0 Be7 11. Kh1 0-0 12. Be3 Rc8 13. Rc1 Qc7 14. Qd2 Qb8 15. a3 Bd8 16. Bd3 Re8 17. b4 Ne5 18. Nce2 Bc7 19. Bb1 d5 20. cxd5 exd5 21. exd5 Nxd5 22. Bg1 b5 23. Qg5 h6 24. Qf5 g6 25. Qh3 h5 26. f4 Ng4 27. f5 Nde3 28. Bxe3 Rxe3 29. Qh4 Qa8 30. Nf4 Bd8 31. fxg6 Bxh4 32. gxf7+ Kxf7 33. Nxh5+ Bf2 34. Ba2+ Kf8 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.06"]
[Round "8.1"]
[White "Arias Santana, Mauricio"]
[Black "Attalib, Osama A"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2318"]
[BlackElo "2033"]
[PlyCount "183"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Libya"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "LBY"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6 dxc6 6. d3 Bd6 7. Nbd2 Be6 8. b3 Nd7 9. Bb2 Qe7 10. 0-0 0-0 11. Nc4 Bxc4 12. bxc4 Rad8 13. a4 a5 14. g3 f5 15. exf5 Rxf5 16. Nd2 Rdf8 17. Kg2 Nc5 18. Qe2 Qg5 19. Ne4 Nxe4 20. Qxe4 Qd2 21. Qe3 Rxf2+ 22. Qxf2 Rxf2+ 23. Rxf2 Qe3 24. Rf3 Qd2+ 25. Rf2 Qe3 26. Raf1 h6 27. Bc3 b6 28. Re1 Qc5 29. Ra1 Be7 30. Re2 Bf6 31. h4 Qd6 32. Re4 Qc5 33. h5 Qd6 34. Rf1 Kh7 35. Rf2 b5 36. cxb5 cxb5 37. axb5 a4 38. Rxa4 Qd5+ 39. Re4 Qxb5 40. Rfe2 Qd5 41. Kh2 Qf7 42. g4 Qd7 43. Kg3 Qc6 44. Bxe5 Bxe5+ 45. Rxe5 Qh1 46. R5e4 Qf1 47. Rf2 Qc1 48. Rc4 Qe3+ 49. Kg2 Qe5 50. Kf1 Qa1+ 51. Ke2 Qe5+ 52. Re4 Qg3 53. Rf5 Qg2+ 54. Kd1 Qh2 55. Rc4 Qg1+ 56. Kd2 Qh2+ 57. Kc3 Qd6 58. Rfc5 Qf6+ 59. Kb3 Qb6+ 60. Ka2 Qa6+ 61. Kb1 Qb7+ 62. Kc1 Qh1+ 63. Kb2 Qb7+ 64. Kc3 Qb6 65. Rxc7 Qa5+ 66. Kd4 Qg5 67. R4c5 Qxg4+ 68. Kc3 Qe2 69. Rb7 Kh8 70. Rc8+ Kh7 71. Rcc7 Qe1+ 72. Kb2 Qe5+ 73. c3 Qe2+ 74. Ka3 Qxd3 75. Rxg7+ Kh8 76. Rgc7 Qd6+ 77. Kb3 Qd1+ 78. Kb4 Qb1+ 79. Kc5 Qf5+ 80. Kb6 Qf2+ 81. Rc5 Qb2+ 82. Kc7 Qa3 83. Rc6 Qa5+ 84. Kb8 Qe5+ 85. Rcc7 Kg8 86. c4 Kf8 87. Ka8 Qa5+ 88. Ra7 Qf5 89. Rf7+ Qxf7 90. Rxf7+ Kxf7 91. c5 Kf6 92. c6 1-0

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.05"]
[Round "7.1"]
[White "Othman, A Moussa"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2229"]
[BlackElo "2318"]
[PlyCount "74"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "United Arab Emirates"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "UAE"]
[BlackTeamCountry "CRI"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nbd2 c5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. dxc5 Bxc5 9. 0-0 0-0 10. Nb3 Bb6 11. Nbd4 Bg4 12. Nxc6 bxc6 13. Ne5 Re8 14. Nxg4 Nxg4 15. e3 h5 16. Bd2 Qg5 17. h3 Nf6 18. h4 Qg6 19. Rc1 Ne4 20. Qc2 c5 21. Rfd1 Rad8 22. Be1 Qe6 23. b3 f5 24. f3 Nf6 25. Bf2 Rc8 26. Bh3 g6 27. Bf1 Kh7 28. Re1 Nd7 29. Bd3 Ne5 30. Kg2 Re7 31. Ba6 Rd8 32. Be2 Qd7 33. Red1 Qb7 34. Qb2 Rde8 35. Rc2 d4 36. exd4 cxd4 37. Bxd4 Ng4 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.03"]
[Round "6.1"]
[White "Arias Santana, Mauricio"]
[Black "Megaranto, Susanto"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2318"]
[BlackElo "2529"]
[PlyCount "84"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Indonesia"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "INA"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bf5 4. 0-0 e6 5. d3 Nf6 6. Nh4 Bg4 7. h3 Bh5 8. f4 Nfd7 9. Qe1 Be7 10. Nf3 Bxf3 11. Bxf3 0-0 12. e4 a5 13. Kh1 Na6 14. Qe2 a4 15. a3 b5 16. Be3 Rb8 17. Nc3 Nc7 18. Qf2 f5 19. g4 fxe4 20. dxe4 d4 21. Bxd4 e5 22. fxe5 Ne6 23. Be3 Nxe5 24. Rad1 Qc7 25. Qe2 Nc4 26. Bc1 Qg3 27. Qg2 Qh4 28. e5 Bg5 29. Be2 Nxe5 30. Rf5 Bxc1 31. Rxc1 Nf4 32. Qh2 Rxf5 33. gxf5 Rf8 34. Rg1 Rxf5 35. Rg3 Nxe2 36. Nxe2 Rf1+ 37. Ng1 Qf4 38. Qe2 Rf2 39. Qe3 Qxe3 40. Rxe3 Nc4 41. Rc3 Nxb2 42. Rxc6 Nc4 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.02"]
[Round "5.1"]
[White "Arias Santana, Mauricio"]
[Black "Gerena Rivas, Eliam"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2318"]
[BlackElo "2102"]
[PlyCount "132"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Puerto Rico"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "PUR"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Na6 8. Be3 Ng4 9. Bg5 Qe8 10. d5 f5 11. h3 Nf6 12. exf5 gxf5 13. Nd2 Qg6 14. f4 Bh6 15. Bxh6 Qxh6 16. Nb3 Bd7 17. c5 Nxc5 18. Nxc5 dxc5 19. d6 c6 20. Na4 b6 21. Qb3+ Kh8 22. fxe5 Ne4 23. Bf3 Be6 24. Qc2 Qe3+ 25. Kh2 Qf4+ 26. Kg1 Qxe5 27. Bxe4 fxe4 28. Qc3 Qd4+ 29. Kh1 Bc4 30. Rfe1 Bd3 31. a3 Rfe8 32. Re3 Rad8 33. Rae1 Qxc3 34. Nxc3 Rxd6 35. Nxe4 Rd4 36. Nf2 Rxe3 37. Rxe3 Bg6 38. Ng4 Re4 39. Kg1 Rxe3 40. Nxe3 Kg7 41. Nc4 Kf6 42. Kf2 Ke6 43. Ke3 Kd5 44. Nd2 b5 45. g4 a5 46. h4 c4 47. h5 Bc2 48. g5 b4 49. axb4 axb4 50. Nf3 c5 51. Kd2 Be4 52. g6 h6 53. Ke3 Bf5 54. Nd2 Ke6 55. Nxc4 Kf6 56. Kf4 Bd3 57. Ne5 Bb5 58. Ng4+ Kg7 59. Ke3 Ba4 60. Nf2 c4 61. Kd4 c3 62. bxc3 bxc3 63. Kxc3 Be8 64. Ng4 Bxg6 65. Nxh6 Kxh6 66. hxg6 Kxg6 1/2-1/2

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.08.01"]
[Round "4.1"]
[White "Sebenik, Matej"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2512"]
[BlackElo "2318"]
[PlyCount "67"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Slovenia"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "SLO"]
[BlackTeamCountry "CRI"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 Bg4 7. c3 e6 8. Qb3 Qc8 9. Bd3 Be7 10. 0-0 Bh5 11. Rfe1 0-0 12. Ng5 Bd8 13. Qc2 Bg6 14. Bxg6 hxg6 15. Ndf3 Nh7 16. h4 Nxg5 17. hxg5 Bc7 18. Qd2 Rd8 19. g3 b5 20. Kg2 Kf8 21. Rh1 Qb8 22. Bxc7 Qxc7 23. Rh7 Rab8 24. a3 Qd6 25. Rah1 a5 26. b4 axb4 27. axb4 Ra8 28. Ne1 Ra3 29. Nd3 Rda8 30. Qe3 R8a7 31. Qf3 e5 32. dxe5 Qe6 33. Nf4 Qf5 34. Qxd5 1-0

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.07.31"]
[Round "3.1"]
[White "Traore, Bakary"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2181"]
[BlackElo "2318"]
[PlyCount "132"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Mali"]
[BlackTeam "Costa Rica"]
[WhiteTeamCountry "MLI"]
[BlackTeamCountry "CRI"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Bc5 7. c3 d6 8. d4 Bb6 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Qxd8+ Kxd8 12. Bg5 Ke7 13. Nd2 h6 14. Bh4 g5 15. Bg3 Nd7 16. Bd5 Rb8 17. Rfd1 f6 18. Kf1 Nc5 19. f3 Nd3 20. Rab1 c5 21. c4 Nb4 22. Bf2 Nxd5 23. cxd5 Bd7 24. Nb3 Kd6 25. Rbc1 Rhc8 26. Rc2 c4 27. Nd2 Ba5 28. Rdc1 f5 29. Be1 Bb6 30. Bf2 Bd4 31. Rd1 Rf8 32. Bg3 Rbc8 33. Ke2 h5 34. h3 Rf7 35. Nb1 Bc5 36. Nd2 Bd4 37. Nb1 Bb6 38. Nd2 Rg8 39. exf5 Bxf5 40. Ne4+ Bxe4 41. fxe4 h4 42. Be1 Rf4 43. Bb4+ Bc5 44. Bxc5+ Kxc5 45. Ke3 g4 46. d6 gxh3 47. Rd5+ Kc6 48. Rxe5 h2 49. Rc1 Rxg2 50. d7 Kxd7 51. Kxf4 Rg1 52. Rd5+ Ke6 53. Rdd1 h1Q 54. Rxg1 Qh2+ 55. Ke3 Qxb2 56. Rg6+ Kf7 57. Rcg1 h3 58. Rxa6 h2 59. Rf1+ Ke7 60. Ra7+ Kd6 61. Rh7 Qa3+ 62. Kf4 Qxa2 63. Rd1+ Kc5 64. Rh5+ Kb4 65. Rh1 Qf2+ 66. Ke5 Qc5+ 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.07.30"]
[Round "2.1"]
[White "Arias Santana, Mauricio"]
[Black "Peralta, Fernando"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2318"]
[BlackElo "2591"]
[PlyCount "102"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Argentina"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "ARG"]

1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. d4 0-0 7. Nc3 Ne4 8. Bd2 Bf6 9. Rc1 Nxd2 10. Qxd2 d6 11. d5 e5 12. e4 a5 13. h4 Bc8 14. Kh2 Be7 15. Bh3 Bxh3 16. Kxh3 Qd7+ 17. Kg2 f5 18. exf5 Qxf5 19. Qe2 Na6 20. Ne4 Qg6 21. Rce1 Rf5 22. Kh2 Raf8 23. Ng1 Nc5 24. Nxc5 bxc5 25. f3 Qh6 26. Nh3 Rh5 27. f4 Bxh4 28. gxh4 Rxh4 29. Qg2 Rfxf4 30. Rxf4 Qxf4+ 31. Kg1 Qxc4 32. Nf2 Rh6 33. Qe4 Rg6+ 34. Kh2 Qxa2 35. Qf5 Rf6 36. Qc8+ Rf8 37. Qe6+ Kh8 38. Qe7 Rg8 39. Qf7 c6 40. Rd1 h6 41. Qf3 cxd5 42. Rxd5 e4 43. Qxe4 Qxb2 44. Rf5 Qb8 45. Kg1 Re8 46. Qd5 a4 47. Ne4 Re5 48. Rxe5 dxe5 49. Nd6 Qb1+ 50. Kh2 a3 51. Qxe5 Qb2+ 0-1

[Event "Olympiad-44"]
[Site "Chennai"]
[Date "2022.07.29"]
[Round "1.1"]
[White "Arias Santana, Mauricio"]
[Black "Sarup, Prashant"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2318"]
[PlyCount "55"]
[EventDate "2022.07.29"]
[EventType "team-swiss"]
[EventRounds "11"]
[EventCountry "IND"]
[SourceTitle "CBM 210"]
[Source "ChessBase"]
[SourceDate "2022.10.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.31"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Fiji"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "FIJ"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Be7 5. cxd5 exd5 6. Bg5 h6 7. Bh4 c6 8. Qc2 Bg4 9. e3 Nbd7 10. Bd3 0-0 11. h3 Be6 12. g4 Ne8 13. Bxe7 Qxe7 14. 0-0-0 b5 15. Kb1 a5 16. g5 h5 17. Ne2 g6 18. Nf4 Qd6 19. Rc1 Ra6 20. Nh4 Ng7 21. Rhg1 Rb6 22. Rg3 Rc8 23. Nxe6 Qxe6 24. f4 c5 25. f5 Qd6 26. Rgg1 gxf5 27. g6 c4 28. gxf7+ 1-0

[Event "FIDE World Cup American Qual Gp1"]
[Site "Tornelo INT"]
[Date "2021.05.24"]
[Round "1.5"]
[White "Arias Santana, Mauricio"]
[Black "Escobar Medina, Andres F"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2291"]
[BlackElo "2298"]
[PlyCount "28"]
[EventDate "2021.05.22"]
[EventType "k.o. (rapid)"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 cxd4 9. Nxd4 Nc5 10. Bxh7+ Kh8 11. Nf3 d4 12. Ng5 f6 13. Bg8 d3 14. Qd1 fxg5 0-1

[Event "FIDE World Cup American Qual Gp1"]
[Site "Tornelo INT"]
[Date "2021.05.23"]
[Round "1.4"]
[White "Arias Santana, Mauricio"]
[Black "Escobar Medina, Andres F"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2291"]
[BlackElo "2298"]
[PlyCount "44"]
[EventDate "2021.05.22"]
[EventType "k.o. (rapid)"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 cxd4 9. Nxd4 Nc5 10. Bxh7+ Kh8 11. 0-0 Qh4 12. Ncb5 dxc4 13. Qxc4 Nc6 14. g3 Qxh7 15. Nxc6 bxc6 16. Qxb4 cxb5 17. Qxc5 Bb7 18. Qxb5 Bd5 19. Qa4 Qd3 20. Qf4 Rac8 21. Be3 Rc4 22. Qg4 Rxg4 0-1

[Event "FIDE World Cup American Qual Gp1"]
[Site "Tornelo INT"]
[Date "2021.05.23"]
[Round "1.2"]
[White "Escobar Medina, Andres F"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2298"]
[BlackElo "2291"]
[PlyCount "71"]
[EventDate "2021.05.22"]
[EventType "k.o. (rapid)"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Bg2 Nc6 7. 0-0 Bxd2 8. Qxd2 e5 9. Nc3 0-0 10. Rfd1 Qe7 11. Nd5 Nxd5 12. cxd5 Nxd4 13. Nxd4 exd4 14. Bf3 f5 15. Qxd4 f4 16. Rac1 Bh3 17. gxf4 Rf7 18. Kh1 Raf8 19. Qc3 Qh4 20. Rg1 Qxf4 21. Bh5 Qe4+ 22. f3 Qxe2 23. Rce1 Qb5 24. Bxf7+ Rxf7 25. Qd4 Bd7 26. Re4 g6 27. Rh4 Bf5 28. Re1 Re7 29. Qf2 Qe8 30. Rxe7 Qxe7 31. Rc4 Qf7 32. Qe2 Qxd5 33. Qe8+ Kg7 34. Qe7+ Kh8 35. Qf6+ Kg8 36. Qd8+ 1-0

[Event "FIDE World Cup American Qual Gp1"]
[Site "Tornelo INT"]
[Date "2021.05.23"]
[Round "1.3"]
[White "Escobar Medina, Andres F"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2298"]
[BlackElo "2291"]
[PlyCount "114"]
[EventDate "2021.05.22"]
[EventType "k.o. (rapid)"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 d6 6. Qc2 Nbd7 7. Nc3 e5 8. a3 Bxc3 9. Bxc3 e4 10. Nd2 Qe7 11. e3 0-0 12. Bg2 Re8 13. 0-0 a4 14. b4 d5 15. c5 Nf8 16. b5 h5 17. Rfb1 h4 18. Bb4 Qe6 19. c6 b6 20. Bxf8 Rxf8 21. Rb4 hxg3 22. hxg3 Ng4 23. Nf1 Qf5 24. Nh2 Nxh2 25. Kxh2 Qh5+ 26. Kg1 g6 27. Rf1 Bg4 28. f4 exf3 29. Bh1 Kg7 30. Qh2 Qxh2+ 31. Kxh2 Rh8+ 32. Kg1 Rh3 33. Rb2 Rxg3+ 34. Kf2 Rh3 35. Ke1 Rah8 36. Bxf3 Bxf3 37. Rbf2 f5 38. Rxf3 Rxf3 39. Rxf3 Rh1+ 40. Kd2 Ra1 41. e4 Ra2+ 42. Kc1 fxe4 43. Rg3 Rf2 44. Rg5 Rf5 45. Rg2 e3 46. Kd1 Rf1+ 47. Ke2 Rf2+ 48. Rxf2 exf2 49. Kxf2 Kf6 50. Ke3 Kg5 51. Kf3 Kf5 52. Kg3 g5 53. Kf3 g4+ 54. Kg3 Kg5 55. Kg2 Kf4 56. Kf2 Ke4 57. Kg3 Kxd4 0-1

[Event "FIDE World Cup American Qual Gp1"]
[Site "Tornelo INT"]
[Date "2021.05.22"]
[Round "1.1"]
[White "Arias Santana, Mauricio"]
[Black "Escobar Medina, Andres F"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2291"]
[BlackElo "2298"]
[PlyCount "123"]
[EventDate "2021.05.22"]
[EventType "k.o. (rapid)"]
[EventRounds "4"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 cxd4 9. Nxd4 Nd7 10. Bf4 Ndc5 11. 0-0 Bxc3 12. bxc3 Bd7 13. Be2 Na4 14. cxd5 exd5 15. f3 Nexc3 16. Bd3 g6 17. Qf2 Nc5 18. Bc2 Ne6 19. Be3 Rc8 20. Rfe1 Nxd4 21. Bxd4 Nb5 22. Be3 Qc7 23. Bb3 Rfe8 24. a4 Nc3 25. Bd4 Qa5 26. Bxa7 Qb4 27. Bc2 Bxa4 28. Bxa4 Nxa4 29. Rab1 Qe7 30. Bd4 Rc4 31. Rb5 Qd7 32. Reb1 Rec8 33. Qd2 Nc3 34. Bxc3 Rxc3 35. Rxd5 Qe7 36. h3 Qh4 37. e6 R3c7 38. Rd7 fxe6 39. Rxb7 Rxd7 40. Rxd7 Qc4 41. Kh2 e5 42. Kg3 Rf8 43. Qd5+ Qxd5 44. Rxd5 Rf5 45. Kf2 Rh5 46. Rd7 Rh4 47. Re7 Rh5 48. Ke3 Kf8 49. Rc7 Kg8 50. Ke4 Rf5 51. Re7 h5 52. Rxe5 Rf6 53. Re7 Rf5 54. g4 hxg4 55. hxg4 Ra5 56. Kf4 g5+ 57. Ke4 Ra4+ 58. Ke3 Ra3+ 59. Kf2 Ra5 60. Rd7 Rb5 61. Ke3 Rd5 62. Rxd5 1-0

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.09"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Hernandez Alvarez, Tania Regla"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2291"]
[BlackElo "2041"]
[PlyCount "121"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 h6 7. Re1 c6 8. a4 Qc7 9. Ba2 g5 10. dxe5 dxe5 11. Nd2 Nf8 12. Nc4 Ne6 13. Be3 Nf4 14. Qd2 Be6 15. Red1 Rd8 16. Qe1 h5 17. a5 h4 18. Bxa7 Rxd1 19. Rxd1 Bxc4 20. Bxc4 Qxa5 21. Ra1 Qb4 22. Bb3 0-0 23. h3 Rd8 24. Ra4 Qd6 25. Bb6 Rd7 26. Be3 Kg7 27. Ra1 Qb4 28. f3 b5 29. Ne2 N6h5 30. Nxf4 gxf4 31. Bf2 Ng3 32. Qxb4 Bxb4 33. c3 Be7 34. Rd1 Ne2+ 35. Kf1 Rxd1+ 36. Bxd1 Nc1 37. Bc2 c5 38. Ke1 c4 39. Kd2 Nd3 40. Bxd3 cxd3 41. Kxd3 Kf8 42. c4 bxc4+ 43. Kxc4 Ke8 44. Kd5 Bf6 45. b4 Kd7 46. b5 Kc7 47. Bc5 Kb7 48. Bd6 Kb6 49. Bxe5 Bg5 50. Bd4+ Kxb5 51. Ke5 f6+ 52. Kf5 Kc4 53. Bxf6 Bxf6 54. Kxf6 Kd3 55. e5 Ke3 56. e6 Kf2 57. e7 Kxg2 58. e8Q Kxf3 59. Kg5 Kg3 60. Qb8 Kxh3 61. Qxf4 1-0

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.09"]
[Round "9"]
[White "Arias Santana, Mauricio"]
[Black "Slipak, Sergio"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2291"]
[BlackElo "2402"]
[PlyCount "108"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ 6. Bd2 a5 7. a3 Be7 8. Be3 Nf6 9. Nc3 0-0 10. Be2 Re8 11. 0-0 Bf8 12. Nd2 d5 13. exd5 Nxd5 14. Nxd5 Qxd5 15. Nc4 Be6 16. Qd3 Rad8 17. Rad1 Qf5 18. Qxf5 Bxf5 19. c3 Bc2 20. Rxd8 Rxd8 21. Rc1 Bd3 22. Bxd3 Rxd3 23. Kf1 b5 24. Nd2 a4 25. Ke2 Rd7 26. Ne4 Ne5 27. Rd1 Rxd1 28. Kxd1 f5 29. Nd2 Nd3 30. Kc2 Ne1+ 31. Kb1 Nxg2 32. Ba7 Bd6 33. Nf3 g6 34. Bb8 Kf7 35. Kc2 Ke6 36. Kd2 Kd5 37. h3 Nf4 38. h4 Ne6 39. Kd3 Nc5+ 40. Ke2 c6 41. Ba7 Ne6 42. Be3 Bc5 43. Bh6 f4 44. Nd2 Ke5 45. Nf3+ Kf5 46. Nh2 Nc7 47. Kf3 Nd5 48. Ng4 Nb6 49. Bg7 Nc4 50. Nh6+ Ke6 51. Kxf4 Bxf2 52. Ng4 Bxh4 53. Ke4 Be7 54. Ne3 Nxb2 0-1

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.09"]
[Round "6"]
[White "Grant, Chevaughn"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "1544"]
[BlackElo "2291"]
[PlyCount "94"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. g3 d6 8. Bg2 0-0 9. Nf3 Qa5 10. 0-0 Bxa6 11. Bd2 Nbd7 12. h3 Bb7 13. e4 Ba6 14. Re1 Ne8 15. Qc2 Nc7 16. a3 Qb6 17. Be3 Qb7 18. Bf1 Rfb8 19. Bxa6 Rxa6 20. Rab1 Qb3 21. Qxb3 Rxb3 22. Bd2 Rab6 23. Na4 Rb8 24. Re3 Rxe3 25. Bxe3 f5 26. exf5 gxf5 27. Nh4 Nxd5 28. Nxf5 Bf6 29. Bd2 Rb3 30. Ne3 Nxe3 31. Bxe3 Ne5 32. g4 Nc4 33. g5 Be5 34. Rc1 Nxb2 35. Nxb2 Bxb2 36. Rb1 c4 37. Bc1 c3 38. Bxb2 Rxb2 39. Rc1 Rb3 40. a4 d5 41. a5 d4 42. a6 Ra3 43. f4 Rxa6 44. Kf2 Re6 45. Kf3 Re3+ 46. Kf2 Rxh3 47. Ke2 d3+ 0-1

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.09"]
[Round "8"]
[White "Jaque Gutierrez, Matias"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2094"]
[BlackElo "2291"]
[PlyCount "76"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 a6 5. b3 b5 6. Bb2 Bb7 7. 0-0 Be7 8. d3 0-0 9. Nbd2 c5 10. Ne5 Qb6 11. e3 Rd8 12. Qe2 Nc6 13. Nxc6 Bxc6 14. Rac1 Rac8 15. f4 bxc4 16. dxc4 d4 17. Bxc6 Qxc6 18. e4 e5 19. f5 Re8 20. Rce1 a5 21. Qf3 a4 22. h3 axb3 23. axb3 Ra8 24. Ra1 Qb7 25. Rxa8 Rxa8 26. Ra1 Rxa1+ 27. Bxa1 Qa8 28. Bb2 Qa2 29. Bc1 Qa1 30. Qf1 Qc3 31. Kg2 Nh5 32. h4 Qxg3+ 33. Kh1 Qxh4+ 34. Kg2 Nf4+ 35. Kf3 Qh5+ 36. Kg3 Bh4+ 37. Kh2 Bf2+ 38. Qh3 Qxh3# 0-1

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.09"]
[Round "5"]
[White "Moncada Correa, Sara"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "1869"]
[BlackElo "2291"]
[PlyCount "151"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 d5 5. 0-0 Bd6 6. c4 c6 7. Qc2 0-0 8. Nc3 Bd7 9. Rb1 Be8 10. b4 Nbd7 11. b5 Ne4 12. bxc6 bxc6 13. Bf4 Bxf4 14. gxf4 Bh5 15. Nxe4 fxe4 16. Ng5 Rf6 17. Bh3 Qe8 18. cxd5 exd5 19. Rb7 Nb6 20. Qc5 h6 21. Re7 Qg6 22. Be6+ Kh8 23. Qxc6 hxg5 24. f5 Qh6 25. Rb1 Raf8 26. Rxa7 Bxe2 27. Rxb6 Qh5 28. Qc7 Qg4+ 29. Qg3 Qh5 30. Rbb7 Bd3 31. f3 Rxe6 32. Rxg7 Rh6 33. Qe5 Qxh2+ 34. Qxh2 Rxh2 35. Kxh2 Rxf5 36. Rgc7 Kg8 37. Ra8+ Rf8 38. Rxf8+ Kxf8 39. fxe4 dxe4 40. Kg3 e3 41. Kf3 e2 42. Kf2 g4 43. Rc5 g3+ 44. Ke1 Bc4 45. Rg5 Bxa2 46. Kxe2 Ke7 47. Rxg3 Bc4+ 48. Ke3 Kd6 49. Rg5 Kd7 50. Ke4 Ba2 51. d5 Kd6 52. Rg6+ Ke7 53. Ke5 Kd7 54. Rg7+ Ke8 55. Ke6 Kf8 56. Ra7 Bc4 57. Ke5 Ke8 58. d6 Bb5 59. Rb7 Bc6 60. Rc7 Bd7 61. Kf6 Ba4 62. Ra7 Bc6 63. Re7+ Kd8 64. Rh7 Ba4 65. Ke5 Bb5 66. Kd5 Ba4 67. Kc5 Kc8 68. Kb6 Kd8 69. Kb7 Bb5 70. Rg7 Ba4 71. Kb6 Bb3 72. d7 Ba4 73. Kc5 Bxd7 74. Kd6 Ba4 75. Rg8+ Be8 76. Rh8 1-0

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.08"]
[Round "4"]
[White "Arias Santana, Mauricio"]
[Black "Da Cunha, Gabriela Goes"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2291"]
[BlackElo "1564"]
[PlyCount "75"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 Bf5 4. g3 e6 5. Bg2 c6 6. 0-0 Nbd7 7. c4 Be7 8. d3 0-0 9. Nbd2 a5 10. a3 b5 11. Nd4 Qb6 12. Nxf5 exf5 13. cxd5 Nxd5 14. e4 fxe4 15. dxe4 N5f6 16. e5 Nd5 17. Ne4 Rad8 18. Qg4 Qb8 19. Qh5 Nc5 20. Nxc5 Bxc5 21. Rac1 Qb6 22. Be4 g6 23. Qh6 Bd4 24. Rxc6 Qxc6 25. Bxd4 Qe6 26. Ba1 Ne7 27. h4 Nf5 28. Qf4 Nd4 29. Kg2 Nxb3 30. Bb2 Rd2 31. Bc3 Ra2 32. h5 Rxa3 33. Rh1 Nc5 34. Qh6 Nxe4 35. Bb2 Ra2 36. Bd4 gxh5 37. Qf4 Nc5 38. Rxh5 1-0

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.08"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Reyes Mendoza, Tomas"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "2291"]
[BlackElo "1879"]
[PlyCount "124"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Bf5 3. Bb2 e6 4. e3 Nf6 5. Be2 c6 6. c4 Nbd7 7. Nh4 Bg6 8. Nc3 Bd6 9. d4 Ne4 10. Nxg6 Nxc3 11. Bxc3 hxg6 12. g3 Nf6 13. Bf3 Qe7 14. Qd2 a5 15. 0-0 g5 16. Qd3 g4 17. Bg2 Bb4 18. Bb2 a4 19. a3 Bd6 20. b4 Rh6 21. Rfe1 Ne4 22. Bxe4 dxe4 23. Qxe4 Qg5 24. d5 cxd5 25. cxd5 Qh5 26. Qg2 e5 27. Rac1 Ke7 28. Rc4 Rah8 29. Kf1 f5 30. Rec1 Qxh2 31. Qxh2 Rxh2 32. Rc8 Rxc8 33. Rxc8 Rh1+ 34. Ke2 Rb1 35. Rc2 Kd7 36. Kd3 Rd1+ 37. Kc4 g5 38. Kb5 f4 39. Kxa4 Rg1 40. gxf4 gxf4 41. exf4 exf4 42. Bd4 Rd1 43. Bc5 Rxd5 44. Bxd6 Kxd6 45. Rc4 Ke5 46. Kb3 Rd3+ 47. Ka4 Rd2 48. Rc5+ Ke4 49. Rc7 Rxf2 50. Rxb7 g3 51. Rg7 g2 52. b5 Kf3 53. b6 Rb2 54. Ka5 Kf2 55. a4 g1Q 56. Rxg1 Kxg1 57. Ka6 f3 58. b7 f2 59. Ka7 f1Q 60. a5 Qf2+ 61. Ka8 Qf8+ 62. Ka7 Qc5+ 0-1

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.08"]
[Round "1"]
[White "Arias Santana, Mauricio"]
[Black "Stephenson, John"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2291"]
[BlackElo "1629"]
[PlyCount "82"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 b6 7. e3 Bb7 8. Qe2 c5 9. c4 dxc4 10. bxc4 Nbd7 11. d3 e6 12. Nc3 Qe7 13. a4 Rfd8 14. Rfd1 Rac8 15. a5 Nb8 16. Nb5 Bc6 17. axb6 axb6 18. Bh3 Bxb5 19. cxb5 Qd7 20. d4 c4 21. Bc3 Qxb5 22. Ne5 Ne4 23. Be1 Bxe5 24. Rdb1 Qd5 25. dxe5 Qxe5 26. Rxb6 Qxa1 27. Kg2 Qa7 28. Rb4 Ng5 29. Bc3 Qa8+ 30. f3 Rd3 31. Bf6 Nxh3 32. Kxh3 Qa5 33. Qb2 Qf5+ 34. Kg2 Nd7 35. Bc3 Rxe3 36. f4 Qe4+ 37. Kh3 f6 38. Rb7 Qf5+ 39. Kg2 Rxc3 40. Qxc3 Qe4+ 41. Kh3 Qxb7 0-1

[Event "American World Cup Q Prelim"]
[Site "Tornelo INT"]
[Date "2021.05.08"]
[Round "2"]
[White "Brambilla, Renee Blandy T"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "1671"]
[BlackElo "2291"]
[PlyCount "36"]
[EventDate "2021.05.08"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. Bf4 d6 7. Bg5 Nbd7 8. e3 g6 9. f3 Bg7 10. e4 0-0 11. Bd3 Rc8 12. Qd2 a6 13. b4 Ne5 14. 0-0 Nxc4 15. Bxc4 Rxc4 16. b5 Rxd4 17. Qxd4 Nxe4 18. Bf6 Bxf6 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.19"]
[Round "9"]
[White "Arias Santana, Mauricio"]
[Black "Duran Vega, Sergio"]
[Result "1/2-1/2"]
[ECO "D33"]
[WhiteElo "2276"]
[BlackElo "2353"]
[PlyCount "116"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 e6 5. Bg2 d5 6. cxd5 exd5 7. d4 cxd4 8. Nxd4 Bc5 9. Nb3 Bb6 10. Nxd5 Nxd5 11. Qxd5 Qxd5 12. Bxd5 Bh3 13. Bd2 0-0 14. Bc3 Rad8 15. Bf3 Rfe8 16. e3 Ne5 17. Bxe5 Rxe5 18. Ke2 Be6 19. Rac1 Rb5 20. Rhd1 Rxd1 21. Kxd1 a5 22. Be2 Rb4 23. Rc2 Rxb3 24. axb3 Bxb3 25. Bf3 Bc5 26. Bxb7 Kf8 27. Bd5 Bxc2+ 28. Kxc2 Ke7 29. b3 Bb4 30. Kd3 Be1 31. f4 Bb4 32. Ke4 Bd2 33. g4 h6 34. h4 Be1 35. h5 Bd2 36. Bc4 Bc1 37. g5 Bd2 38. Kd3 Bc1 39. Bd5 Ba3 40. Kc2 Bc5 41. Kd2 Bb4+ 42. Ke2 Ba3 43. Bb7 Bc1 44. Kf3 Bd2 45. Bc8 Bc1 46. gxh6 gxh6 47. e4 Kd8 48. Bf5 Ke7 49. Kg4 Bd2 50. Bc8 f6 51. Ba6 Bc1 52. Bc4 Bd2 53. Kf5 Bc1 54. e5 fxe5 55. fxe5 Bd2 56. Bd5 Bc1 57. Bc4 Bd2 58. Bd5 Ke8 1/2-1/2

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.19"]
[Round "10"]
[White "Chinchilla Miranda, Eugenio"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2166"]
[BlackElo "2276"]
[PlyCount "59"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 b4 5. e4 d6 6. f4 g6 7. Bd3 Bg7 8. Nf3 0-0 9. 0-0 e6 10. Nbd2 Nbd7 11. dxe6 fxe6 12. Ng5 Qe7 13. Ndf3 e5 14. f5 gxf5 15. Nh4 Nb8 16. Nxf5 Bxf5 17. exf5 Nc6 18. Ne6 Nd4 19. Nxd4 exd4 20. Bg5 Rfe8 21. Rf3 Kh8 22. Raf1 a5 23. g4 Qb7 24. Qg2 Rg8 25. Qh3 Rae8 26. Qh4 Qf7 27. Rh3 Re5 28. Rff3 h6 29. Bxh6 Nh7 30. Bg5 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.18"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Chaves Sanchez, Gabriel A"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2276"]
[BlackElo "2161"]
[PlyCount "79"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 c5 5. 0-0 d4 6. b4 cxb4 7. a3 bxa3 8. d3 Nc6 9. Qb3 Bd6 10. Bxa3 0-0 11. Bxd6 Qxd6 12. Qa3 Qc7 13. Nbd2 h6 14. Nb3 e5 15. Na5 Bd7 16. Nxc6 Bxc6 17. Qa5 b6 18. Qxe5 Qxe5 19. Nxe5 Bxg2 20. Kxg2 Rfe8 21. f4 Re6 22. Kf2 g5 23. Ra6 gxf4 24. gxf4 Nh5 25. Rg1+ Kh7 26. Kf3 Rae8 27. Rxa7 Rf6 28. Rxf7+ Rxf7 29. Nxf7 Rf8 30. Ne5 Nxf4 31. Ke4 Nxe2 32. Rg6 b5 33. c5 Nc3+ 34. Kxd4 Ne2+ 35. Ke3 Nf4 36. Rd6 Ng2+ 37. Kd4 Rf4+ 38. Kc3 Rf5 39. Rd7+ Kg8 40. d4 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.16"]
[Round "7"]
[White "Minero Pineda, Sergio"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "D57"]
[WhiteElo "2356"]
[BlackElo "2276"]
[PlyCount "30"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 h6 6. Bh4 0-0 7. Nf3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Bd3 Be6 12. 0-0 Nd7 13. Rb1 b6 14. Re1 Nf6 15. Ne5 c5 1/2-1/2

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.15"]
[Round "6"]
[White "Ramirez Madrid, Gerardo Alfonso"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2033"]
[BlackElo "2276"]
[PlyCount "90"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. b3 d4 7. e3 c5 8. exd4 cxd4 9. Bb2 Nc6 10. Re1 Ne8 11. Ne5 Nxe5 12. Rxe5 f6 13. Re1 e5 14. d3 Nc7 15. Ba3 Bxa3 16. Nxa3 Rb8 17. b4 a6 18. b5 Ne6 19. Rb1 Bd7 20. Qd2 Qc7 21. b6 Qc5 22. Nc2 Qd6 23. Nb4 Nc5 24. Nd5 Bf5 25. Be4 Bxe4 26. dxe4 Rbc8 27. f3 Rc6 28. Kg2 Rfc8 29. Rec1 Kh8 30. h4 Qd7 31. g4 Ne6 32. Qb4 Nc5 33. Qd2 Nxe4 34. fxe4 Qxg4+ 35. Kf1 f5 36. Qg2 Qxh4 37. exf5 Rf8 38. Rb3 Rg6 39. Qh3 Qg5 40. Rc2 Qg1+ 41. Ke2 Rg2+ 42. Kd3 Rg3+ 43. Qxg3 Qxg3+ 44. Ke4 Qg4+ 45. Kxe5 Qxf5+ 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.14"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Valdes Romero, Leonardo"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "2276"]
[BlackElo "2419"]
[PlyCount "122"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. c4 d6 2. Nc3 e5 3. e4 Nf6 4. g3 Be7 5. Bg2 0-0 6. Nge2 c6 7. d4 a6 8. a4 a5 9. 0-0 Na6 10. h3 Re8 11. d5 Nd7 12. b3 Ndc5 13. Rb1 Nb4 14. Be3 Bd7 15. Kh2 Rc8 16. f3 Bg5 17. f4 Bf6 18. f5 Bg5 19. Qd2 h6 20. h4 Bxe3 21. Qxe3 Qf6 22. Rfd1 Red8 23. Rb2 Kh7 24. Nc1 cxd5 25. Nxd5 Nxd5 26. Rxd5 Bc6 27. Rd1 b6 28. Ne2 Rd7 29. Nc3 Rg8 30. Bh3 Rdd8 31. Rf1 Kh8 32. Rff2 Rb8 33. Bg4 Nd7 34. Be2 Qe7 35. g4 Qxh4+ 36. Kg1 f6 37. Rd2 Rgc8 38. Bd1 Kg8 39. Rxd6 Nc5 40. Nd5 Bxd5 41. Rxd5 Qg5 42. Qxg5 hxg5 43. Bc2 Kf7 44. Rh2 Rd8 45. Kg2 Rh8 46. Rh5 Rxh5 47. gxh5 Ke7 48. Kg3 Rd8 49. Rxd8 Kxd8 50. Kf3 Ke7 51. Ke3 Kd6 52. Kd2 Nb7 53. Ke3 Kc5 54. Kf3 Kd4 55. Kg4 Nd6 56. h6 gxh6 57. Kh5 Nxe4 58. b4 axb4 59. Bxe4 Kxe4 60. c5 bxc5 61. a5 Kd5 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.12"]
[Round "4"]
[White "Arias Santana, Mauricio"]
[Black "Fernandez Sanchez, Mario Andres"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2276"]
[BlackElo "2097"]
[PlyCount "97"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 g6 5. d4 Bg7 6. b4 0-0 7. Qb3 a6 8. Bd2 e6 9. Be2 Nbd7 10. 0-0 Ne4 11. Nxe4 dxe4 12. Ne1 e5 13. Bc3 exd4 14. exd4 Qg5 15. Bb2 Qd2 16. Bg4 Qg5 17. Bd1 Nb6 18. f4 Qd8 19. Nc2 Be6 20. Be2 f5 21. Rad1 Qe7 22. Ne3 Rfd8 23. a4 Bf7 24. g3 Rac8 25. Rd2 Nd7 26. a5 Nf6 27. Rfd1 Rd7 28. Bc3 Ne8 29. d5 c5 30. Bxg7 Kxg7 31. b5 Ra8 32. b6 Rc8 33. g4 Nd6 34. Kh1 Qf6 35. Rg1 Kh8 36. g5 Qg7 37. Bd1 Kg8 38. h4 Kf8 39. h5 Ke7 40. Qa3 Rdd8 41. h6 Qh8 42. Be2 Be8 43. Rgd1 Nf7 44. d6+ Nxd6 45. Nd5+ Kf8 46. Nf6 Bc6 47. Rxd6 Kf7 48. Qxc5 Qf8 49. Qe5 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.12"]
[Round "3"]
[White "Diaz Charpentier, Kristel Melissa"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1753"]
[BlackElo "2276"]
[PlyCount "158"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. c3 d6 7. Bb3 h6 8. h3 Re8 9. Nbd2 Bf8 10. Re1 Na5 11. Bc2 c5 12. Nf1 Nc6 13. Ng3 g6 14. Be3 b5 15. a3 a5 16. d4 Bb7 17. d5 Nb8 18. Nh2 Nbd7 19. Qf3 Bg7 20. Ng4 Nxg4 21. hxg4 Qh4 22. Qe2 Nf6 23. f3 Nxg4 24. fxg4 Qxg3 25. Bf2 Qf4 26. Bh4 h5 27. Bd1 Qxg4 28. Qxg4 hxg4 29. Bxg4 Bc8 30. Be2 Bd7 31. g4 Bh6 32. g5 Bf8 33. Rf1 Be7 34. Rf2 Reb8 35. c4 bxc4 36. Bxc4 a4 37. Kg2 Rb6 38. Raf1 Be8 39. Rb1 Rab8 40. Kf3 Bb5 41. Bxb5 Rxb5 42. Kg4 R8b7 43. Rc2 Kg7 44. Rc4 Ra7 45. Be1 Rb8 46. Rc3 Rh8 47. Bh4 Raa8 48. Rh3 Rab8 49. Rc3 Rh5 50. Rh3 Bd8 51. b4 Ba5 52. b5 Rhh8 53. Rh2 Rb6 54. Rc2 Rhb8 55. Rc4 Rxb5 56. Rxb5 Rxb5 57. Rxa4 Kf8 58. Kf3 Ke7 59. Ke2 Kd7 60. Kd3 Kc7 61. Ke2 Kb6 62. Rc4 Rb2+ 63. Kf1 Kb5 64. Rc1 Bd2 65. a4+ Ka6 66. Rd1 c4 67. Be1 Bxe1 68. Kxe1 Rh2 69. Rd2 Rh4 70. Re2 Ka5 71. Kd2 Kxa4 72. Kc3 Kb5 73. Rf2 Rf4 74. Rb2+ Kc5 75. Rb7 Rf3+ 76. Kc2 Kd4 77. Rc7 Rf2+ 78. Kd1 Kd3 79. Ke1 Rf4 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.11"]
[Round "2"]
[White "Arias Santana, Mauricio"]
[Black "Munoz Garcia, Flavio Estuardo"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2276"]
[BlackElo "1867"]
[PlyCount "55"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. g3 c5 4. b4 e6 5. Bb2 Nc6 6. b5 Nce7 7. Bg2 Ng6 8. 0-0 Nf6 9. e3 e5 10. exd4 exd4 11. d3 Bd6 12. Re1+ Ne7 13. Nbd2 0-0 14. Ng5 Bg4 15. Qb3 h6 16. Nge4 Nxe4 17. Nxe4 Rb8 18. Qa4 f5 19. Nxd6 Qxd6 20. Bc1 f4 21. Bxf4 Rxf4 22. gxf4 Qxf4 23. Rxe7 Qg5 24. Qxa7 Rf8 25. Qxb7 Bf3 26. Rxg7+ Qxg7 27. Qxg7+ Kxg7 28. a4 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2020.01.10"]
[Round "1"]
[White "Rodriguez Arrieta, Maria Elena"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "C80"]
[WhiteElo "1882"]
[BlackElo "2276"]
[PlyCount "95"]
[EventDate "2020.01.10"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nc5 7. Bxc6 dxc6 8. Rxe5+ Be7 9. d4 Ne6 10. c3 0-0 11. Re1 Re8 12. Be3 b6 13. Ne5 Bd6 14. Qf3 Bxe5 15. dxe5 Qd5 16. Nd2 Bb7 17. Qxd5 cxd5 18. f4 g6 19. Nf3 c5 20. Kf2 h5 21. g3 a5 22. h3 Red8 23. Rad1 Rac8 24. Re2 Rf8 25. Nh4 Kh7 26. g4 f6 27. exf6 Rxf6 28. Kg3 Rcf8 29. f5 gxf5 30. Nxf5 Ng7 31. Nxg7 hxg4 32. hxg4 Kxg7 33. Rf2 d4 34. Rxf6 Rxf6 35. Bf4 Rf7 36. cxd4 Rd7 37. Rd2 c4 38. Be5+ Kg6 39. Rf2 b5 40. Rf6+ Kh7 41. g5 Be4 42. Rh6+ Kg8 43. Kf4 Bb1 44. g6 Rg7 45. Bxg7 Kxg7 46. Kg5 Bxa2 47. Rh7+ Kg8 48. Kf6 1-0

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.30"]
[Round "9"]
[White "Murillo Tsijli, Alexis"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2290"]
[BlackElo "2276"]
[PlyCount "15"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 1/2-1/2

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.29"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Duran Vega, Sergio"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2276"]
[BlackElo "2372"]
[PlyCount "57"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 e6 5. a3 Bd6 6. Nf3 c5 7. dxc5 Bxc5 8. Bd3 Nc6 9. 0-0 h6 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 0-0 13. Qxd8 Rxd8 14. Rfd1 Re8 15. Ne5 Nxe5 16. Bxe5 f6 17. Bg6 Rf8 18. Bd6 Bxd6 19. Rxd6 b5 20. Rad1 e5 21. f3 Ra7 22. c3 Rc7 23. h4 Rc4 24. h5 Rc7 25. Kf2 Re7 26. Rd8 Rc7 27. R1d6 a5 28. Ke3 Bb7 29. Bh7+ 1-0

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.29"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Jimenez Garcia, Emanuel"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2276"]
[BlackElo "2355"]
[PlyCount "45"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 d6 2. Nc3 e5 3. d4 exd4 4. Qxd4 Nf6 5. Bg5 Nc6 6. Qd2 Be7 7. e4 h6 8. Be3 Ng4 9. Bf4 Bg5 10. Nh3 f6 11. Nxg5 hxg5 12. Bg3 Be6 13. 0-0-0 Qd7 14. f3 Nge5 15. Nd5 Ne7 16. Kb1 c6 17. Ne3 0-0-0 18. Be2 Qc7 19. Rc1 Kb8 20. Rhd1 c5 21. Nd5 Nxd5 22. cxd5 Bd7 23. h3 1/2-1/2

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.28"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Valdes Romero, Leonardo"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2276"]
[BlackElo "2407"]
[PlyCount "56"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b4 d6 4. Bb2 Bg7 5. e3 e5 6. Nc3 0-0 7. d4 Qe7 8. Be2 Re8 9. 0-0 e4 10. Nd2 h5 11. Qc2 Nbd7 12. Rfc1 h4 13. h3 Nb6 14. Nb3 c6 15. a4 Bf5 16. a5 Nbd7 17. a6 b6 18. c5 Rec8 19. Ba3 bxc5 20. bxc5 d5 21. Na5 g5 22. Nb7 Qe6 23. Nd6 g4 24. hxg4 Nxg4 25. Qd1 Ndf6 26. Rcb1 Bh6 27. Bc1 Rf8 28. Rb7 Bg6 1-0

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.28"]
[Round "6"]
[White "Chaves Sanchez, Gabriel A"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "C43"]
[WhiteElo "2161"]
[BlackElo "2276"]
[PlyCount "88"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. 0-0 Bd6 8. Nc3 Nxc3 9. bxc3 0-0 10. Qh5 f5 11. Re1 Qf6 12. Qf3 c6 13. Bf4 Rae8 14. c4 dxc4 15. Bxc4+ Kh8 16. Qg3 Bxf4 17. Qxf4 c5 18. c3 cxd4 19. Qxd4 Qxd4 20. cxd4 b5 21. Bb3 g5 22. f3 Kg7 23. Rac1 Rxe1+ 24. Rxe1 Kf6 25. Re5 Rc8 26. Rd5 Ke7 27. Re5+ Kd8 28. g4 fxg4 29. Rxg5 gxf3 30. Kf2 Rc3 31. Rg3 a5 32. Rxf3 Rxf3+ 33. Kxf3 Ke7 34. a3 Kd6 35. Ke4 a4 36. Ba2 Bh3 37. Kd3 h5 38. Kc3 h4 39. Kb4 Bd7 40. Bf7 Bc6 41. Ba2 Be8 42. Bg8 Bc6 43. Ba2 Be8 44. Bg8 Bc6 1/2-1/2

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.27"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Drazic, Sinisa"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2276"]
[BlackElo "2371"]
[PlyCount "164"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 4. e3 Bf5 5. Bd3 Bg6 6. Nf3 e6 7. 0-0 c5 8. a3 Nc6 9. Re1 Bd6 10. dxc5 Bxc5 11. h3 0-0 12. Bg5 Be7 13. Bxg6 hxg6 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe7 Qxe7 17. Rxe4 Rfd8 18. Qe2 Qf6 19. c3 Rd6 20. Rd1 Rad8 21. Rxd6 Rxd6 22. h4 Qd8 23. g3 Qd7 24. Kg2 f6 25. Qc4 Kh7 26. Nd4 e5 27. Nxc6 Rxc6 28. Qe2 Rd6 29. h5 g5 30. Rc4 Qe6 31. g4 Qd5+ 32. Qe4+ Qxe4+ 33. Rxe4 g6 34. hxg6+ Kxg6 35. Rb4 b6 36. Kf3 f5 37. gxf5+ Kxf5 38. a4 Rf6 39. Ke3 g4 40. Rc4 Rg6 41. Rb4 g3 42. fxg3 Rxg3+ 43. Kf2 Rg6 44. Kf3 Rh6 45. Kg3 a5 46. Rc4 e4 47. Rc8 Ke5 48. Re8+ Kd5 49. Kf4 Rh4+ 50. Kf5 e3 51. b3 Rh3 52. Kg4 Rh2 53. Kf3 e2 54. b4 Kc4 55. bxa5 bxa5 56. Rxe2 Rh3+ 57. Ke4 Rxc3 58. Ra2 Rc1 59. Ke3 Kb3 60. Rh2 Kxa4 61. Kd2 Rc5 62. Rh4+ Kb3 63. Rh3+ Kb2 64. Rh4 Rd5+ 65. Ke3 Kb3 66. Ke4 Rd8 67. Rh7 Rb8 68. Kd4 a4 69. Rh3+ Kb4 70. Kd3 Kb3 71. Kd4+ Kb2 72. Rh2+ Kb1 73. Kc3 Rb3+ 74. Kc4 Rb2 75. Rh1+ Ka2 76. Kc3 a3 77. Rc1 Rb3+ 78. Kd2 Rh3 79. Rc2+ Kb3 80. Rc8 Rh2+ 81. Kc1 Rh1+ 82. Kd2 a2 0-1

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.27"]
[Round "4"]
[White "Solis L, Efren A"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1948"]
[BlackElo "2276"]
[PlyCount "90"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nf3 Nc6 4. Nc3 Qa5 5. Be2 Bg4 6. 0-0 Nf6 7. d3 e6 8. a3 Bd6 9. Ng5 Bf5 10. Bd2 Nd4 11. Re1 Qe5 12. g3 Nxe2+ 13. Rxe2 Qc5 14. Kg2 Qc6+ 15. f3 h6 16. Nge4 Be7 17. h3 Nd7 18. b4 b6 19. b5 Qb7 20. Qf1 g5 21. g4 Bg6 22. Nd1 0-0-0 23. a4 f5 24. Ng3 Bf6 25. Bc3 Rde8 26. Qe1 h5 27. Nf2 hxg4 28. hxg4 Ref8 29. Rxe6 fxg4 30. Nge4 gxf3+ 31. Kg3 Bxe4 32. dxe4 g4 33. Bxf6 Nxf6 34. Qc3 Nh5+ 35. Kxg4 Rfg8+ 36. Kf5 Ng7+ 37. Ke5 Nxe6 38. Kxe6 Re8+ 39. Kf5 Rhf8+ 40. Kg4 Rxe4+ 41. Kh3 Ree8 42. Re1 Rxe1 43. Qxe1 Qd5 44. Qe7 Qf5+ 45. Kg3 Qf4+ 0-1

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.26"]
[Round "1"]
[White "Arias Santana, Mauricio"]
[Black "Vega Araya, Edwin"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2276"]
[BlackElo "1840"]
[PlyCount "65"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 g6 4. Nf3 Bg7 5. Nbd2 c5 6. c3 Nfd7 7. h4 Nc6 8. h5 e5 9. dxe5 Ndxe5 10. hxg6 hxg6 11. Rxh8+ Bxh8 12. Nxe5 Bxe5 13. Bxe5 Nxe5 14. Nf3 Nc6 15. Bb5 Qa5 16. Qb3 a6 17. Bxc6+ bxc6 18. Ne5 Qb5 19. 0-0-0 Be6 20. Qa3 Rb8 21. Nd3 Bf5 22. Nxc5 Qe2 23. e4 dxe4 24. Rh1 f6 25. Rh8+ Kf7 26. Rxb8 Qe1+ 27. Kc2 e3+ 28. Kb3 exf2 29. Rb7+ Kg8 30. Qxa6 Qd1+ 31. Ka3 Bc8 32. Rb8 f1Q 33. Qxc8+ 1-0

[Event "San Jose Metropolitano op"]
[Site "San Jose"]
[Date "2019.12.26"]
[Round "2"]
[White "Hernandez Alvarez, Tania Regla"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2071"]
[BlackElo "2276"]
[PlyCount "60"]
[EventDate "2019.12.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CRI"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 Ne4 5. Bf4 Bb7 6. Qd3 f5 7. Nc3 c4 8. Qd4 Nxc3 9. bxc3 Qa5 10. Bd2 e6 11. dxe6 dxe6 12. Qe5 Bd5 13. Nd4 Nd7 14. Qg3 Nf6 15. f3 0-0-0 16. e3 Rg8 17. Be2 Bd6 18. Qf2 g6 19. Bd1 e5 20. Ne2 g5 21. 0-0 Bc5 22. Kh1 f4 23. Ng1 Qb6 24. Re1 g4 25. Qe2 gxf3 26. Nxf3 e4 27. Nd4 f3 28. Nxf3 exf3 29. gxf3 Ne4 30. Bc1 Qh6 0-1

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9"]
[White "Arias Santana, Mauricio"]
[Black "Polgar, Tom"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2292"]
[BlackElo "2234"]
[PlyCount "54"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 0-0 6. 0-0 d6 7. Nbd2 Ne7 8. d4 exd4 9. cxd4 Bb6 10. Re1 Bg4 11. Qc2 Bh5 12. b3 Bg6 13. Bd3 Nc6 14. d5 Nb4 15. Qc4 Nxd3 16. Qxd3 Ng4 17. Re2 f5 18. Bb2 fxe4 19. Nxe4 Nxf2 20. Rxf2 Bxf2+ 21. Kxf2 Qh4+ 22. Ke3 Qf4+ 23. Kd4 Rae8 24. Re1 Bxe4 25. Rxe4 Rxe4+ 26. Qxe4 Qf6+ 27. Kd3 Qxb2 0-1

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8"]
[White "Stearman, Josiah P"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2341"]
[BlackElo "2292"]
[PlyCount "62"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 0-0 8. h3 Nc6 9. c3 Bf5 10. Bf4 Re8 11. Qb3 Nc5 12. dxc5 Bxd3 13. Qxb7 Bxf1 14. Qxc6 Bd3 15. Bxc7 Qc8 16. Nbd2 Ba6 17. Ne5 Bf6 18. Ng4 Re6 19. Qxd5 Bb7 20. c6 Bxc6 21. Qa5 Qb7 22. Nb3 Bxg2 23. Nc5 Qf3 24. Nxe6 Qxh3 25. Nxf6+ gxf6 26. Bh2 fxe6 27. Qc7 e5 28. Rd1 Bf3 29. Rd8+ Rxd8 30. Qxd8+ Kf7 31. Qc7+ Kg6 0-1

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7"]
[White "Arias Santana, Mauricio"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "A15"]
[WhiteElo "2292"]
[BlackElo "2360"]
[PlyCount "26"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 0-0 5. g3 d6 6. Bg2 e5 7. d3 Nbd7 8. 0-0 Re8 9. Nbd2 c6 10. Qc2 Qe7 11. e3 Nh5 12. e4 Nhf6 13. d4 exd4 1/2-1/2

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6"]
[White "Kiewra, Keaton F"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2372"]
[BlackElo "2292"]
[PlyCount "116"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Bxc6 dxc6 10. Nc3 Ne6 11. Nf5 Qxd1 12. Rxd1 Bf8 13. Ne4 Bd7 14. g4 h5 15. h3 hxg4 16. hxg4 c5 17. Be3 Bc6 18. Nfg3 Be7 19. f3 Rd8 20. Kg2 Rxd1 21. Rxd1 b6 22. c4 g6 23. Nc3 f6 24. exf6 Bxf6 25. Bc1 Bxc3 26. bxc3 Rf8 27. Ne4 Bxe4 28. fxe4 Nf4+ 29. Kg3 g5 30. Bxf4 Rxf4 31. Rd5 Rxe4 32. Rxg5 Rxc4 33. Re5+ Kf7 34. Re3 Ra4 35. Re2 Ra3 36. Rc2 c4 37. Kf4 Kg6 38. Re2 Kf7 39. Rc2 Ra5 40. Rd2 Rc5 41. Rd7+ Kg6 42. Re7 Rc6 43. Ke4 b5 44. Kd5 Rd6+ 45. Kc5 Rd3 46. Re6+ Kg5 47. Rxa6 Rxc3 48. Kxb5 Kxg4 49. a4 Rc1 50. Rc6 c3 51. Kb4 Kf5 52. Rxc7 c2 53. Kb3 Ke6 54. Kb2 Kd6 55. Rc8 Rb1+ 56. Kxc2 Rb4 57. Ra8 Kc7 58. Kc3 Rh4 1/2-1/2

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5"]
[White "Arias Santana, Mauricio"]
[Black "Krykun, Yuriy"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2292"]
[BlackElo "2382"]
[PlyCount "90"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Bxc6 dxc6 6. b3 Ne7 7. Bb2 f6 8. d4 exd4 9. Qxd4 Qxd4 10. Bxd4 0-0 11. Nbd2 b6 12. Rfe1 c5 13. Bb2 Nc6 14. Nc4 Bg4 15. Rad1 Rad8 16. Ne3 Bxf3 17. gxf3 Nd4 18. Kg2 f5 19. c3 Ne6 20. exf5 Nf4+ 21. Kf1 Nd3 22. Re2 Nxb2 23. Rxd8 Rxd8 24. Rxb2 Bxc3 25. Rc2 Bg7 26. Ke2 gxf5 27. Nxf5 Kf7 28. Nxg7 Kxg7 29. b4 c6 30. bxc5 b5 31. Ke3 Kf6 32. Ke4 Re8+ 33. Kf4 Re5 34. h3 a5 35. h4 Rh5 36. Kg4 Rd5 37. h5 a4 38. f4 h6 39. Rc3 Rd2 40. a3 Rd5 41. Kh4 Kf5 42. Kg3 Rd4 43. f3 Rc4 44. Rd3 Rxc5 45. Rd6 Rc1 0-1

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4"]
[White "Cervantes Landeiro, Thalia"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A59"]
[WhiteElo "2227"]
[BlackElo "2292"]
[PlyCount "149"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. Nf3 Bxa6 8. e4 Bxf1 9. Kxf1 d6 10. g3 0-0 11. Kg2 Nbd7 12. a4 Qb6 13. Qc2 Rfb8 14. Nb5 Ne8 15. Nd2 Qa6 16. Ra3 Rb7 17. Nc4 Nc7 18. Bg5 Kf8 19. Bf4 Kg8 20. Bg5 Re8 21. Nxc7 Rxc7 22. a5 Rb7 23. Qa4 e6 24. Nb6 exd5 25. Nxd7 Rxe4 26. Re3 Rxe3 27. Bxe3 d4 28. Bg5 Rb4 29. Qa3 Qb7+ 30. Qf3 h6 31. Nf6+ Kh8 32. Re1 Qxf3+ 33. Kxf3 Rb3+ 34. Kg2 hxg5 35. Re8+ Bf8 36. Rxf8+ Kg7 37. a6 Rxb2 38. a7 Ra2 39. a8Q Rxa8 40. Rxa8 Kxf6 41. Re8 g4 42. Kf1 Kf5 43. Ke2 c4 44. Kd2 d5 45. Re7 Kf6 46. Re1 Kf5 47. Re2 g5 48. Re8 Kf6 49. Ke2 Kf5 50. Re7 Kf6 51. Ra7 Ke6 52. Rb7 f6 53. Rb6+ Ke5 54. Rb8 Ke6 55. Re8+ Kd7 56. Ra8 Kd6 57. Kd2 Ke6 58. Re8+ Kd7 59. Rh8 Ke6 60. Rh7 Ke5 61. Re7+ Kd6 62. Re8 Kd7 63. Re1 Kd6 64. Rf1 Ke5 65. f3 gxf3 66. Rxf3 g4 67. Rf4 f5 68. Kc2 d3+ 69. Kc3 Ke6 70. Kd4 Kf6 71. Rf1 Ke6 72. Rf4 Kf6 73. Rf2 Ke6 74. Rf1 Kf6 75. Kxd5 1-0

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2292"]
[BlackElo "2338"]
[PlyCount "173"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 4. Nb5 Na6 5. e3 c6 6. Nc3 Nc7 7. h3 Bg7 8. Nf3 0-0 9. Be2 Nce8 10. 0-0 Nd6 11. Re1 Re8 12. Bf1 Bf5 13. Ne5 Nd7 14. Bd3 Bxd3 15. cxd3 Nf8 16. b4 a5 17. b5 Nxb5 18. Nxb5 cxb5 19. Qb3 f6 20. Nf3 Qd7 21. Reb1 b4 22. a3 Rec8 23. axb4 a4 24. Qd1 b5 25. Rc1 Ne6 26. Bg3 Rxc1 27. Rxc1 Rc8 28. Nd2 Nd8 29. Nb1 Rxc1 30. Qxc1 Qc6 31. Qb2 Bf8 32. Kf1 e6 33. Na3 Qb7 34. f4 Nc6 35. Be1 Bd6 36. Bc3 Kf7 37. Kf2 Ke8 38. g4 Kd8 39. h4 Kc7 40. g5 Kb6 41. Ke2 fxg5 42. hxg5 h5 43. gxh6 Qh7 44. Qd2 Qxh6 45. Kd1 Ka6 46. Kc1 Na5 47. Kb2 Nb3 48. Qc2 Qf8 49. Be1 Kb6 50. Qc3 Qh8 51. Nc2 Qh5 52. Qc8 Qd1 53. Bh4 Qc1+ 54. Ka2 Bc7 55. Qxe6+ Ka7 56. Qc6 Bb6 57. Be7 Nc5 58. Bxc5 Qxc2+ 59. Ka1 Qc3+ 60. Ka2 Qb3+ 61. Ka1 Qa3+ 62. Kb1 Qxd3+ 63. Ka2 Qc4+ 64. Ka1 Bxc5 65. Qxc5+ Kb7 66. Qe7+ Qc7 67. Qc5 Qd7 68. Kb2 Qc6 69. Qe7+ Kc8 70. Qc5 Kd7 71. Ka3 Qb7 72. Qc2 Qa6 73. f5 gxf5 74. Qxf5+ Qe6 75. Qd3 Kc6 76. Kb2 Kb6 77. Qc3 Qc6 78. Qc5+ Kb7 79. Qe7+ Ka6 80. Qc5 Qe6 81. Ka2 Qd7 82. Kb2 Kb7 83. Ka2 Qc6 84. Kb2 Kc7 85. Qe7+ Kc8 86. Qf8+ Kd7 87. Qf7+ 1/2-1/2

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2"]
[White "Proleiko, Julian"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2170"]
[BlackElo "2292"]
[PlyCount "77"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Be2 0-0 7. 0-0 Bg4 8. Nd2 Bxe2 9. Qxe2 Nbd7 10. Nc4 Ne8 11. Bf4 f6 12. Bg3 Nc7 13. a4 Ne5 14. Nxe5 fxe5 15. Nd1 Qd7 16. Ne3 Ne8 17. f3 Nf6 18. Qb5 Qc8 19. Bh4 Bh6 20. Qe2 Rf7 21. Ng4 Bg7 22. Nxf6+ exf6 23. c3 f5 24. Bg5 Qd7 25. Qb5 Raf8 26. Qxd7 Rxd7 27. Be3 Rc8 28. Kf2 h5 29. Ke2 Kh7 30. g4 hxg4 31. fxg4 f4 32. Bf2 Bf6 33. h4 Bd8 34. Kf3 Ba5 35. g5 Kg7 36. Kg4 Rdd8 37. Rh1 Rh8 38. Rh3 c4 39. Rah1 1/2-1/2

[Event "Saint Louis Winter-B"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1"]
[White "Gauri, Shankar"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2340"]
[BlackElo "2292"]
[PlyCount "89"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "USA"]
[EventCategory "3"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bb5+ Bd7 7. a4 0-0 8. 0-0 Bxb5 9. axb5 Nbd7 10. h3 Ne8 11. Bg5 Nc7 12. Qd2 Nb6 13. Bh6 Qd7 14. Bxg7 Kxg7 15. Qe2 a6 16. bxa6 Rxa6 17. Rxa6 bxa6 18. Ra1 Ra8 19. Ra5 e6 20. dxe6 Qxe6 21. b3 Re8 22. Qd2 Re7 23. Ra1 h6 24. Rd1 Nb5 25. Nxb5 axb5 26. Kh2 Nc8 27. Re1 b4 28. Kg1 Kh7 29. Qf4 Na7 30. e5 d5 31. Ra1 Nb5 32. Ra5 Nc3 33. Qh4 Ne4 34. Ra8 Kg7 35. Qf4 g5 36. Qc1 Qf5 37. Qa1 h5 38. Qa5 Rd7 39. Qb6 Qf4 40. Qb8 Qc1+ 41. Kh2 Qf4+ 42. Kg1 Qc1+ 43. Kh2 Qf4+ 44. Kg1 Qc1+ 45. Kh2 1/2-1/2

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.20"]
[Round "11"]
[White "Solano Cuya, Bryan"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "A23"]
[WhiteElo "2249"]
[BlackElo "2270"]
[PlyCount "54"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 d5 6. Nc3 Na6 7. Nf3 Be7 8. cxd5 Nb4 9. 0-0 Nc2 10. Qa4 Nxa1 11. dxc6 0-0 12. Ne5 bxc6 13. Nxc6 Bd7 14. Be3 Qe8 15. Rxa1 Rc8 16. Nxe7+ Qxe7 17. Qxa7 Qb4 18. Bd4 Qxb2 19. Nd5 Rc1+ 20. Bf1 Qxa1 21. Nxf6+ gxf6 22. Qxd7 Rxf1+ 23. Kg2 Rg1+ 24. Kf3 Qb1 25. e4 Qd1+ 26. Kf4 Qd2+ 27. Kf3 Rd1 0-1

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.17"]
[Round "8"]
[White "Arias Santana, Mauricio"]
[Black "Chinchilla Miranda, Eugenio"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2270"]
[BlackElo "2220"]
[PlyCount "77"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nd2 Be7 4. c3 c5 5. dxc5 Nf6 6. exd5 exd5 7. b4 0-0 8. Ngf3 a5 9. Bd3 b6 10. 0-0 axb4 11. cxb4 bxc5 12. bxc5 Na6 13. Nb3 Nxc5 14. Nxc5 Bxc5 15. Bg5 h6 16. Bh4 d4 17. Qc1 Ra5 18. Nd2 Ba3 19. Qc6 Qd5 20. Qxd5 Nxd5 21. Nc4 Ra4 22. Nxa3 Rxa3 23. Bc4 Nf6 24. Rfd1 Rd8 25. Rd3 Rxd3 26. Bxd3 g5 27. Bg3 Nd5 28. a3 f5 29. Be5 Be6 30. Rb1 Nf4 31. Bxf4 gxf4 32. a4 Rc8 33. Kf1 Rc3 34. Ke2 Ra3 35. Rb4 Ra2+ 36. Kf3 Kf7 37. Kxf4 Kf6 38. Rb6 Rxf2+ 39. Kg3 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.16"]
[Round "7"]
[White "Ramirez Madrid, Gerardo Alfonso"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1977"]
[BlackElo "2270"]
[PlyCount "56"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 c5 5. Bg2 Nc7 6. Nf3 Nc6 7. 0-0 e5 8. d3 Be7 9. a3 a5 10. Be3 0-0 11. Rc1 b6 12. Nd2 Bd7 13. Nc4 Rb8 14. Bxc6 Bxc6 15. Nxe5 Ba8 16. Qa4 Bd6 17. d4 Bxe5 18. dxe5 Qe7 19. Rfd1 Rfd8 20. Rd6 Qxe5 21. Bf4 Qe7 22. Rcd1 Ne8 23. Rd7 Rxd7 24. Rxd7 Qe6 25. Bxb8 Bc6 26. Re7 Qc8 27. Qf4 Qd8 28. Re6 Qc8 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.15"]
[Round "6"]
[White "Arias Santana, Mauricio"]
[Black "Chaves Sanchez, Gabriel A"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2270"]
[BlackElo "2142"]
[PlyCount "79"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[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. Nd2 g6 9. c4 Ba6 10. Qe4 f5 11. exf6 Nxf6 12. Qxe7+ Bxe7 13. Bd3 0-0 14. 0-0 d5 15. b3 Nd7 16. Bb2 Bf6 17. Bxf6 Rxf6 18. Rfe1 Nc5 19. Bf1 Rd8 20. Rac1 d4 21. Re7 Rf7 22. Rce1 Bc8 23. R1e5 Nd7 24. Rxf7 Kxf7 25. Ra5 a6 26. c5 Re8 27. Nf3 Nf6 28. Nxd4 Re1 29. f3 Rd1 30. Nxc6 Bf5 31. Kf2 Rd2+ 32. Ke3 Rc2 33. Bc4+ Kg7 34. g4 Bc8 35. Ne7 Bd7 36. Rxa6 Rxh2 37. Ra7 h5 38. g5 Ne8 39. c6 Bh3 40. Nd5 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.13"]
[Round "4"]
[White "Arias Santana, Mauricio"]
[Black "Murillo Gonzalez, Carlos E"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2270"]
[BlackElo "2008"]
[PlyCount "49"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 e6 2. Bf4 Nf6 3. e3 c5 4. c3 b6 5. Nf3 Bb7 6. h3 Be7 7. Nbd2 0-0 8. Bd3 cxd4 9. exd4 d6 10. 0-0 Nbd7 11. Re1 Re8 12. Bh2 Qc7 13. Qe2 h6 14. Ba6 Bxa6 15. Qxa6 Bf8 16. a4 e5 17. dxe5 dxe5 18. Nc4 Nc5 19. Qb5 Nd5 20. Bxe5 Qd8 21. Rad1 f6 22. Ne3 fxe5 23. Rxd5 Qc7 24. Qc4 Qf7 25. Nxe5 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.13"]
[Round "5"]
[White "Duran Vega, Sergio"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2396"]
[BlackElo "2270"]
[PlyCount "61"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 d5 3. e3 c6 4. c4 Qb6 5. Qc2 e6 6. Bd3 Na6 7. a3 Be7 8. Bxe7 Nxe7 9. Nf3 0-0 10. 0-0 Nb8 11. Nc3 Qd8 12. Ne2 Rf6 13. Nf4 Bd7 14. b4 b5 15. cxb5 cxb5 16. Qc5 a6 17. Rac1 Nbc6 18. Qc3 Nc8 19. Qd2 Nd6 20. Rc5 Ne4 21. Bxe4 fxe4 22. Ne5 Nxe5 23. dxe5 Rh6 24. Rfc1 Qh4 25. h3 Rf8 26. Rc7 Be8 27. Ra7 Qg5 28. Qd4 Qf5 29. Rcc7 Bh5 30. Rxg7+ Kh8 31. g4 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.12"]
[Round "3"]
[White "Arias Santana, Mauricio"]
[Black "Quesada Campos, Jordi Alessandre"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2270"]
[BlackElo "2044"]
[PlyCount "53"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 10. a4 a5 11. Nh2 b6 12. 0-0 Nf8 13. f4 exf4 14. Rxf4 Be6 15. Raf1 g5 16. R4f2 Qd7 17. Ne2 0-0-0 18. Ng3 Be5 19. Nf5 Ng6 20. Ng4 Bb8 21. Nfxh6 Rxh6 22. Nxh6 Qd6 23. g4 Qg3+ 24. Rg2 Qxh3 25. Bxg5 Rh8 26. Qe3 Bxg4 27. Nxg4 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.11"]
[Round "2"]
[White "Valdes Romero, Leonardo"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2399"]
[BlackElo "2270"]
[PlyCount "129"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. g3 g6 5. Bg2 Bg7 6. a3 a5 7. 0-0 Nge7 8. d3 d6 9. Rb1 Be6 10. Bg5 f6 11. Bd2 0-0 12. Ne1 d5 13. Na4 Qd6 14. cxd5 Nxd5 15. Rc1 b6 16. Bxd5 Bxd5 17. Nxb6 Nd4 18. Nxd5 Qxd5 19. e4 Qd6 20. Nf3 Ne6 21. Qb3 Rfb8 22. Qc4 a4 23. Rc3 Kh8 24. h4 Qd7 25. Nh2 h5 26. Kg2 Kh7 27. Re1 Bh6 28. Kh1 Rb3 29. Rg1 Ra7 30. Nf3 Nd4 31. Kg2 Ne6 32. Nh2 Rb8 33. Rh1 g5 34. hxg5 Bxg5 35. Nf3 Nf4+ 36. Kf1 Nh3 37. Qd5 Qg4 38. Nh2 Qc8 39. Rc2 Bh6 40. Nf3 Qg4 41. Nh2 Qc8 42. Ke2 h4 43. Be1 hxg3 44. fxg3 Ng5 45. g4 Rf7 46. Qc4 Qd8 47. Rc1 Rb6 48. Bd2 Kg6 49. Bxg5 Bxg5 50. Nf3 Rd6 51. Rc3 Rh7 52. Rxh7 Kxh7 53. Qf7+ Kh6 54. Qc4 Qd7 55. Qxc5 Kg7 56. Nxg5 fxg5 57. Qxe5+ Kh6 58. Qf5 Qb7 59. Qf8+ Kh7 60. Qf5+ Kh6 61. Qf8+ Kh7 62. Rc2 Rb6 63. Qf5+ Kh6 64. Kd1 Qb8 65. Rh2+ 1-0

[Event "CRI-ch"]
[Site "San Jose"]
[Date "2019.01.10"]
[Round "1"]
[White "Arias Santana, Mauricio"]
[Black "Tapia Quiros, Gustavo"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2270"]
[BlackElo "2043"]
[PlyCount "72"]
[EventDate "2019.01.10"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CRI"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Bf5 4. Bb2 e6 5. g3 Nf6 6. Bg2 h6 7. 0-0 Nbd7 8. d3 Be7 9. Nbd2 0-0 10. a3 a5 11. Rc1 Bg6 12. Rc2 Ne8 13. e4 Bf6 14. cxd5 cxd5 15. Qa1 Bxb2 16. Qxb2 Qb6 17. Rfc1 Nd6 18. e5 Nb5 19. Bf1 f6 20. a4 Na7 21. Qd4 Qxd4 22. Nxd4 fxe5 23. Nxe6 Rf6 24. Rc7 Be8 25. Bh3 Nf8 26. Nxf8 Kxf8 27. Rxb7 Nc6 28. Bg2 Rd8 29. Rc5 Bf7 30. Bf1 Bh5 31. h3 Bd1 32. Rc7 Rdd6 33. Bg2 Nb4 34. Rxa5 Kg8 35. Ra8+ Kh7 36. Ne4 dxe4 1-0

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "Au Cardero, Ramon"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "2289"]
[PlyCount "82"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Cuba"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "CUB"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 0-0 8. Qd2 c6 9. c4 Nd7 10. 0-0-0 a6 11. Kb1 Nf6 12. Bd3 b5 13. Rhe1 bxc4 14. Bxc4 d5 15. Bd3 Rb8 16. Ka1 Rb7 17. Nd4 Qc7 18. Bf4 Qb6 19. c3 c5 20. Nf5 Bxf5 21. Bxf5 g6 22. Bb1 Rd8 23. Re2 Bf8 24. Bg5 Bg7 25. Qc1 Qb5 26. Rc2 Rd6 27. Bf4 Rdb6 28. f3 c4 29. Be3 Re6 30. Qd2 Nd7 31. h4 Nb8 32. Bh6 d4 33. Bxg7 d3 34. Bh6 dxc2 35. Qxc2 Nd7 36. Qf2 Rb8 37. Be4 Nf6 38. Bb1 Rbe8 39. Qd4 Re2 40. Bc1 Re1 41. Bc2 Qd5 0-1

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "Baumgartner, Ulrich"]
[Result "1/2-1/2"]
[ECO "A09"]
[BlackElo "2354"]
[PlyCount "86"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.24"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.24"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Switzerland"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "SUI"]

1. Nf3 d5 2. c4 d4 3. b4 Bg4 4. Qb3 Bxf3 5. Qxf3 c6 6. Bb2 e5 7. a3 Nf6 8. e3 a5 9. c5 Be7 10. Bc4 0-0 11. 0-0 b6 12. exd4 exd4 13. cxb6 Qxb6 14. Qd3 Rd8 15. Qb3 Nbd7 16. Bxf7+ Kh8 17. Be6 axb4 18. axb4 Rxa1 19. Bxa1 Bxb4 20. Bxd7 Nxd7 21. Na3 Bxa3 22. Qxa3 c5 23. Re1 h6 24. h3 Qb8 25. Qd3 Rf8 26. Qe4 Qb6 27. Qe2 Nf6 28. Qc4 Qa5 29. Qc2 Nd5 30. g3 Nb4 31. Qc4 Na6 32. Bb2 Qxd2 33. Re2 Qa5 34. Bc1 Nb4 35. Re5 Qa4 36. Rxc5 Qd1+ 37. Qf1 Qf3 38. Bb2 Nd3 39. Bxd4 Nxc5 40. Bxc5 Rf6 41. Be3 Qe4 42. Qg2 Rf3 43. Qf1 Rxg3+ 1/2-1/2

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "De Bari, Vito"]
[Result "1/2-1/2"]
[ECO "B07"]
[BlackElo "2451"]
[PlyCount "77"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Italy"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "ITA"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bg5 Bg7 5. Qd2 h6 6. Bh4 Nbd7 7. f4 c5 8. d5 Qb6 9. Rb1 Nh5 10. Nh3 Qb4 11. Bd3 Bxc3 12. Qxc3 Qxc3+ 13. bxc3 Nb6 14. f5 gxf5 15. exf5 Nxd5 16. Kd2 Rg8 17. g3 Nb6 18. Rhe1 f6 19. Re3 c4 20. Be4 d5 21. Bf3 Ng7 22. g4 Bxf5 23. gxf5 Nxf5 24. Bf2 Nxe3 25. Bxe3 e5 26. a4 0-0-0 27. a5 Na8 28. Bxa7 Rd6 29. Bf2 Nc7 30. Bc5 Re6 31. Ke3 f5 32. Kf2 Reg6 33. Bb6 e4 34. Nf4 exf3 35. Nxg6 Rxg6 36. Kxf3 Rg4 37. Bxc7 Kxc7 38. Rb5 Rh4 39. Kg3 1/2-1/2

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "Destruels Moreno, Vicente"]
[Result "1/2-1/2"]
[ECO "A21"]
[BlackElo "2413"]
[PlyCount "97"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Spain"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "ESP"]

1. c4 e5 2. Nc3 Bb4 3. Nd5 Bc5 4. e3 Nf6 5. b4 Be7 6. Nxe7 Qxe7 7. Bb2 0-0 8. a3 d6 9. Ne2 a5 10. Nc3 Na6 11. Be2 Bf5 12. b5 Nc5 13. d3 c6 14. 0-0 d5 15. cxd5 cxd5 16. Na4 Nxa4 17. Qxa4 Nd7 18. Qb3 Rfc8 19. Rfc1 d4 20. exd4 exd4 21. Qd1 Qe5 22. Rc4 Qxb5 23. Bxd4 Ne5 24. Rb1 Qd5 25. Bxe5 Qxe5 26. Rxb7 Be6 27. Rxc8+ Rxc8 28. d4 Qd6 29. a4 g6 30. h3 Qf4 31. g3 Qc1 32. Rb1 Qxd1+ 33. Rxd1 Bxh3 34. f3 Be6 35. d5 Bd7 36. Bb5 Bxb5 37. axb5 Rb8 38. Rb1 a4 39. Kf2 a3 40. b6 a2 41. Ra1 Rxb6 42. Rxa2 Rb5 43. Rd2 Kf8 44. d6 Ke8 45. Re2+ Kf8 46. Rd2 Ke8 47. Re2+ Kf8 48. Rd2 Ke8 49. Re2+ 1/2-1/2

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "Dutra, Alfredo"]
[Result "0-1"]
[ECO "A09"]
[BlackElo "2431"]
[PlyCount "50"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Brazil"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "BRA"]

1. Nf3 d5 2. c4 d4 3. g3 c5 4. b4 Nf6 5. Bg2 cxb4 6. a3 b3 7. Qxb3 Nc6 8. 0-0 e5 9. d3 Nd7 10. Nbd2 Be7 11. Ne1 Nc5 12. Qa2 0-0 13. Nc2 Bg4 14. Re1 Na4 15. Bb2 Qd7 16. Nb4 Rae8 17. Qb3 Nc5 18. Qc2 Bh3 19. Bf3 f5 20. Rad1 f4 21. Nd5 Bd6 22. Ne4 fxg3 23. hxg3 Re6 24. Bc1 Rg6 25. Rf1 b6 0-1

[Event "CLW III email"]
[Site "ICCF email"]
[Date "2018.04.16"]
[Round "?.2"]
[White "Arias Santana, Mauricio"]
[Black "Meillon, Gustavo"]
[Result "0-1"]
[ECO "A14"]
[BlackElo "2217"]
[PlyCount "80"]
[EventDate "2018.??.??"]
[EventType "team-swiss (corr)"]
[SourceTitle "Corr 2020"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]
[WhiteTeam "Costa Rica"]
[BlackTeam "Mexico"]
[WhiteTeamCountry "CRI"]
[BlackTeamCountry "MEX"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. b3 c5 7. e3 Nc6 8. Qe2 e5 9. cxd5 Nxd5 10. Bb2 Ndb4 11. Nxe5 Nxe5 12. Bxe5 Nc2 13. Be4 Nxa1 14. Bxa1 Rb8 15. Rd1 Be6 16. d4 cxd4 17. Bxd4 Qa5 18. Nd2 Qc7 19. Nf3 Rfd8 20. Be5 Bd6 21. Bd4 Be7 22. Be5 Bd6 23. Bd4 Qa5 24. Nd2 Bf8 25. Nc4 Qg5 26. Bxa7 Rxd1+ 27. Qxd1 Re8 28. Qd3 b5 29. Nd2 Rc8 30. Bxh7+ Kh8 31. Be4 Rc1+ 32. Nf1 Qh5 33. h4 b4 34. Kg2 Rd1 35. Qc2 Qg4 36. Kg1 Ra1 37. Bd4 Re1 38. Bg2 Qe2 39. Qe4 Kg8 40. Qa8 Qb5 0-1

