[Event "BOL-ch Seniors"]
[Site "Santa Cruz"]
[Date "2023.03.26"]
[Round "6"]
[White "Frederiksen, Eguil E"]
[Black "Costas, Javier"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1442"]
[BlackElo "1807"]
[PlyCount "57"]
[EventDate "2023.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 d6 4. h3 Nf6 5. d3 g6 6. 0-0 Bg7 7. Nc3 0-0 8. a3 e6 9. Nh2 Nd4 10. Be3 d5 11. Ba2 Re8 12. Bg5 Qb6 13. Rb1 dxe4 14. Bxf6 Bxf6 15. Nxe4 Bg7 16. c3 Nf5 17. Ng4 Rd8 18. Ngf6+ Bxf6 19. Nxf6+ Kg7 20. Ne4 Bd7 21. Qf3 Bc6 22. Bc4 Qc7 23. Qe2 b5 24. Ba2 Bb7 25. Ng5 Qc6 26. f3 Rd6 27. Rbd1 h6 28. Qe5+ Kg8 29. Ne4 1-0

[Event "BOL-ch Seniors"]
[Site "Santa Cruz"]
[Date "2023.03.25"]
[Round "4"]
[White "Costas, Javier"]
[Black "Suarez Antelo, Jesus"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "1807"]
[BlackElo "1375"]
[PlyCount "50"]
[EventDate "2023.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 f5 2. b3 Nf6 3. Bb2 e6 4. Nc3 c6 5. e3 d5 6. Be2 Bd6 7. 0-0 h5 8. h4 Nbd7 9. Ng5 Ne5 10. f4 Neg4 11. Bf3 Bd7 12. Ne2 Qe7 13. a4 0-0-0 14. Qc1 Ne4 15. Bxe4 dxe4 16. d4 exd3 17. cxd3 Kb8 18. e4 e5 19. fxe5 Bxe5 20. Bxe5+ Qxe5 21. Qf4 Qxf4 22. Rxf4 Rhf8 23. Nd4 fxe4 24. Rxe4 Rf6 25. Re7 Bc8 1-0

[Event "BOL-ch Seniors"]
[Site "Santa Cruz"]
[Date "2023.03.25"]
[Round "5"]
[White "Salas, Javier"]
[Black "Costas, Javier"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1748"]
[BlackElo "1807"]
[PlyCount "101"]
[EventDate "2023.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. e5 Nge7 7. Ne4 0-0 8. Nd6 a6 9. c3 b5 10. Bb3 f6 11. d4 fxe5 12. fxe5 cxd4 13. cxd4 Nf5 14. Nxf5 Rxf5 15. 0-0 Bb7 16. Kh1 Nb4 17. a3 Nd5 18. Bc2 Rf8 19. Bg5 Rxf3 20. Bxd8 Rxf1+ 21. Qxf1 Rxd8 22. Be4 Rf8 23. Qe1 Bh6 24. Qh4 Kg7 25. Bf3 Bc6 26. Bxd5 Bxd5 27. h3 Be3 28. Rd1 Bb3 29. Qe7+ Rf7 30. Qxf7+ Kxf7 31. Rd3 Bxd4 32. Rxd4 Bd5 33. Kg1 Ke7 34. Rh4 h5 35. g4 hxg4 36. hxg4 Kd8 37. Kf2 Be4 38. Ke3 Bc2 39. Kd4 Kc7 40. Kc5 Bd1 41. g5 Bc2 42. Rd4 Bb3 43. Rd6 Bd5 44. Rxa6 Bc6 45. b4 Kb7 46. Rb6+ Kc7 47. Ra6 Kb7 48. Ra5 Kc7 49. Ra7+ Kd8 50. Kd6 Kc8 51. Rc7+ 1-0

[Event "BOL-ch Seniors"]
[Site "Santa Cruz"]
[Date "2023.03.24"]
[Round "1"]
[White "Caballero Vega, Esther Rosse Mary"]
[Black "Costas, Javier"]
[Result "0-1"]
[ECO "B21"]
[BlackElo "1807"]
[PlyCount "34"]
[EventDate "2023.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qe3 d5 5. Nf3 d4 6. Qd3 e5 7. Be2 g6 8. Bd2 Bg7 9. Na3 f5 10. 0-0-0 Nge7 11. Kb1 0-0 12. exf5 Bxf5 13. Qc4+ Kh8 14. Ng5 Qd5 15. Qxd5 Nxd5 16. Nb5 h6 17. Nh3 Ncb4 0-1

[Event "BOL-ch Seniors"]
[Site "Santa Cruz"]
[Date "2023.03.24"]
[Round "2"]
[White "Costas, Javier"]
[Black "Campero, Ronald"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1807"]
[BlackElo "2082"]
[PlyCount "80"]
[EventDate "2023.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BOL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. Nd2 e6 4. e3 Bd6 5. Bd3 Bxf4 6. exf4 Qd6 7. Ne2 Nbd7 8. 0-0 c5 9. c3 0-0 10. Nf3 c4 11. Bc2 b5 12. a3 a5 13. Ne5 Ba6 14. Ng3 b4 15. axb4 axb4 16. Rc1 Bb5 17. Re1 g6 18. Bb1 Nb6 19. h4 Ra1 20. Qf3 Na4 21. h5 Nxb2 22. hxg6 hxg6 23. Bxg6 Rxc1 24. Rxc1 fxg6 25. Nxg6 Rf7 26. f5 bxc3 27. Ne5 Nd3 28. Nxf7 Kxf7 29. Rxc3 e5 30. Qe3 exd4 31. Qxd4 Qe5 32. Qa7+ Bd7 33. Rc2 Qe1+ 34. Nf1 Qe7 35. Ng3 Qc5 36. Qa8 Qb6 37. Qa1 Ng4 38. Qh8 Ndxf2 39. Rb2 Nh3+ 40. Kh1 Qg1# 0-1

