[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.21"]
[Round "9"]
[White "Pereira, Ephrem Christa"]
[Black "Castillo Rosa, Jose Luis"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1701"]
[BlackElo "1403"]
[PlyCount "89"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 g6 5. d4 Bg7 6. Bf4 Nf6 7. Nf3 0-0 8. 0-0 a6 9. h3 b5 10. Bb3 Nc6 11. Ne2 Bb7 12. Qd2 Re8 13. Ng5 e6 14. c3 h6 15. Nf3 Kh7 16. Bc2 Nd5 17. Bg3 f5 18. Rfe1 Nf6 19. Nf4 e5 20. Ne2 e4 21. Nh2 Ne5 22. Rad1 Nc4 23. Qc1 e3 24. b3 exf2+ 25. Bxf2 Nd6 26. Nf4 Nfe4 27. Bd3 Qg5 28. Nf3 Qd8 29. Be3 Ng3 30. d5 Nde4 31. Ne6 Rxe6 32. dxe6 Qe7 33. Nd4 c5 34. Ne2 Qxe6 35. Nxg3 Nxc3 36. Bf4 Qc6 37. Rd2 Rd8 38. Bf1 Bd4+ 39. Be3 Qf6 40. Bxd4 cxd4 41. Qa3 Nd5 42. Qc5 Qh4 43. Rd3 Ne3 44. Rexe3 dxe3 45. Qc7+ 1-0

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.20"]
[Round "8"]
[White "Membrives Cano, Diego"]
[Black "Pereira, Ephrem Christa"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1324"]
[BlackElo "1701"]
[PlyCount "50"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. e3 Qb6 4. Nc3 a6 5. dxc5 Qxb2 6. Nge2 Qb4 7. Qd4 Qa5 8. Bxb8 Rxb8 9. Nf4 e6 10. Nd3 Nd5 11. Kd2 Be7 12. Qxg7 Bf6 13. Qg3 Qxc3+ 14. Ke2 Qxc2+ 15. Kf3 Ra8 16. Rc1 Qa4 17. Qh3 Nc3 18. Qg4 Qc6+ 19. e4 Bd4 20. Re1 f5 21. Qh5+ Ke7 22. Kf4 fxe4 23. Ne5 Bxe5+ 24. Qxe5 Rf8+ 25. Kg5 Rf5+ 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.19"]
[Round "7"]
[White "Pereira, Ephrem Christa"]
[Black "Morales Rubiella, Albert"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1701"]
[BlackElo "1402"]
[PlyCount "60"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bg5 Qa5 7. Nxc6 bxc6 8. Bd2 Qb6 9. Bd3 Be7 10. 0-0 d6 11. b3 0-0 12. Be3 Qc7 13. f4 e5 14. fxe5 dxe5 15. h3 Rd8 16. a3 Ba6 17. Qe2 Bxd3 18. cxd3 Rd6 19. Rf3 Rad8 20. Bd2 Qd7 21. Raf1 Rxd3 22. Bc1 Qd4+ 23. Be3 Qxc3 24. Rg3 Bc5 25. Kh1 Rxe3 26. Rxe3 Qxe3 27. Qa6 Nxe4 28. Qa5 Ng3+ 29. Kh2 Nxf1+ 30. Kh1 Qg1# 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.18"]
[Round "6"]
[White "Berrozpe Gonzalez, Marc"]
[Black "Pereira, Ephrem Christa"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1488"]
[BlackElo "1701"]
[PlyCount "115"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4 4. c3 Ba5 5. 0-0 d6 6. Qa4 Bb6 7. Bxc6+ bxc6 8. Qxc6+ Bd7 9. Qc4 a6 10. a4 Nf6 11. Re1 0-0 12. h3 Qe7 13. Qe2 Bc6 14. d3 Nh5 15. b4 Nf4 16. Bxf4 exf4 17. d4 Qd7 18. Qc2 f5 19. Nbd2 Rf6 20. e5 Rg6 21. Nh4 Rh6 22. Nhf3 Rf8 23. a5 Ba7 24. Qb3+ Kh8 25. d5 Bb7 26. e6 Qe7 27. Qa4 Rd8 28. Ng5 Rf6 29. Nf7+ Rxf7 30. exf7 Qxf7 31. c4 h6 32. Re2 Qf6 33. Rae1 Qd4 34. Qb3 Kh7 35. Nf3 Qf6 36. Re6 Qf8 37. Re7 Bb8 38. Qc3 Bc8 39. b5 Bb7 40. b6 Rc8 41. Nh4 Ba8 42. Nxf5 Kg6 43. Nh4+ Kh7 44. Qd3+ Kg8 45. Qg6 cxb6 46. Re8 Rxe8 47. Rxe8 Qxe8 48. Qxe8+ Kh7 49. Qxb8 Bxd5 50. cxd5 bxa5 51. Qa7 a4 52. Qxa6 a3 53. Qxa3 f3 54. gxf3 h5 55. Qd3+ Kg8 56. Qg6 Kh8 57. Nf5 h4 58. Qxg7# 1-0

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.17"]
[Round "5"]
[White "Pereira, Ephrem Christa"]
[Black "Salazar Navas, Josep"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1701"]
[BlackElo "1561"]
[PlyCount "50"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Nc3 Nd5 7. Bxe7 Qxe7 8. Nf3 Nxc3 9. bxc3 Nd7 10. Bd3 b6 11. 0-0 Bb7 12. c4 0-0 13. d5 Qf6 14. Be2 Nc5 15. Qd2 Rad8 16. c3 Ne4 17. Qc2 exd5 18. cxd5 Bxd5 19. Bd3 Qc6 20. c4 Nxf2 21. Rxf2 Bxf3 22. Bxh7+ Kh8 23. Rxf3 Qd6 24. Be4 Qd4+ 25. Kh1 Qxa1+ 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.16"]
[Round "4"]
[White "Riera Mestres, Josep"]
[Black "Pereira, Ephrem Christa"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1501"]
[BlackElo "1701"]
[PlyCount "44"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Qc1 Nc6 6. c3 Bg4 7. Be2 e6 8. Nbd2 cxd4 9. exd4 Be7 10. 0-0 0-0 11. h3 Bf5 12. Ne5 Rac8 13. g4 Bg6 14. g5 Nxd4 15. Bd1 Nh5 16. Nd7 Qd8 17. Nxf8 Nxf4 18. Re1 Nd3 19. Nxg6 Nxc1 20. Nxe7+ Qxe7 21. Rxc1 Qxg5+ 22. Kh2 Qxd2 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.15"]
[Round "3"]
[White "Pereira, Ephrem Christa"]
[Black "Bilyk, Nikolay"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "1701"]
[BlackElo "1555"]
[PlyCount "98"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bd6 5. 0-0 Nd4 6. Bc4 0-0 7. d3 h6 8. Re1 c6 9. Be3 Nxf3+ 10. Qxf3 Bb4 11. Qg3 d5 12. exd5 cxd5 13. Bb3 Qd6 14. a3 Bxc3 15. bxc3 Re8 16. d4 Ne4 17. Qf3 Be6 18. dxe5 Qxe5 19. Bd4 Qg5 20. Qd3 Rac8 21. Re3 Red8 22. f3 Nc5 23. Qe2 b6 24. f4 Qxf4 25. Rf1 Qg4 26. Qe1 Ne4 27. Rff3 Qg5 28. Rg3 Nxg3 29. Rxg3 Bg4 30. h3 Re8 31. Qb1 Qd2 32. Rxg4 Re1+ 33. Qxe1 Qxe1+ 34. Kh2 g5 35. Bxd5 Re8 36. Bb3 Qd2 37. Rg3 Qf4 38. h4 Qxh4+ 39. Rh3 Qf4+ 40. Rg3 h5 41. Bf2 h4 42. a4 hxg3+ 43. Bxg3 Qd2 44. c4 Re2 45. Kh3 Rxg2 46. c5 Rg1 47. cxb6 Qe3 48. Bxf7+ Kxf7 49. bxa7 Qxg3# 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.14"]
[Round "2"]
[White "Archs Garriga, Ignasi"]
[Black "Pereira, Ephrem Christa"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "1467"]
[BlackElo "1701"]
[PlyCount "114"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 g6 3. g3 Bg7 4. Bg2 f5 5. d3 d6 6. Nf3 c6 7. 0-0 Nf6 8. Bg5 h6 9. Bd2 0-0 10. Qb3 Kh8 11. Rad1 Qc7 12. Qc2 Be6 13. Qc1 g5 14. h4 Kh7 15. hxg5 Ne8 16. gxh6 Bf6 17. Bg5 Kh8 18. Bh3 Qe7 19. c5 Nd7 20. cxd6 Nxd6 21. Bxf6+ Rxf6 22. Ng5 Rg8 23. Kh2 Rxh6 24. Nf7+ Nxf7 25. Rh1 f4 26. Kg2 Bxh3+ 27. Rxh3 Rxh3 28. Kxh3 fxg3 29. fxg3 Qg5 30. Qxg5 Rxg5 31. Ne4 Rh5+ 32. Kg4 Rh2 33. Rf1 Kg7 34. Kf3 Kg6 35. Nf2 Ng5+ 36. Ke3 Nf6 37. Kd2 e4 38. d4 Rg2 39. Nh1 Nh3 40. Ke3 Rg1 41. Rxg1 Nxg1 42. Nf2 Kg5 43. Nxe4+ Nxe4 44. Kxe4 Kf6 45. e3 Ke6 46. g4 Nh3 47. a4 a5 48. Kf3 Kd5 49. Kg3 Ng5 50. Kf4 Ne4 51. Kf5 b5 52. b3 Nd6+ 53. Kf4 Nf7 54. Kf5 Nh6+ 55. Kf4 Nxg4 56. Kxg4 bxa4 57. bxa4 Ke4 0-1

[Event "Barcelona Sant Marti op-B 23rd"]
[Site "Barcelona"]
[Date "2023.07.13"]
[Round "1"]
[White "Pereira, Ephrem Christa"]
[Black "Dominguez Laguna, Didac"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1701"]
[BlackElo "1611"]
[PlyCount "134"]
[EventDate "2023.07.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ESP"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 bxa3 4. Rxa3 e6 5. d4 Bxa3 6. Bxa3 Qa5+ 7. c3 Nf6 8. Bd3 Nc6 9. Nf3 d5 10. exd5 Nxd5 11. 0-0 Nxc3 12. Qb3 Nd5 13. Bc4 Nb6 14. Bd3 Bd7 15. Nc3 Qh5 16. Nb5 f6 17. Nc7+ Kf7 18. Nxa8 Rxa8 19. Re1 Qd5 20. Qb2 Rc8 21. Be4 Qa5 22. Ra1 Nc4 23. Qxb7 Rc7 24. Qb3 Nxa3 25. Rxa3 Nxd4 26. Qe3 Nxf3+ 27. Bxf3 Qc5 28. Qxc5 Rxc5 29. h3 a5 30. Kf1 Rc1+ 31. Ke2 a4 32. Kd2 Rf1 33. Ke2 Rb1 34. Be4 Rb3 35. Ra1 a3 36. Rd1 Bb5+ 37. Kd2 Rb2+ 38. Kc3 Rxf2 39. Kb3 f5 40. Bf3 Bf1 41. Rd7+ Kf6 42. Kxa3 Bxg2 43. Bd1 Bxh3 44. Rd6 f4 45. Bb3 Rf3 46. Kb2 Rxb3+ 47. Kxb3 f3 48. Rd2 g5 49. Kc3 g4 50. Kd3 g3 51. Ke3 f2 52. Rxf2+ gxf2 53. Kxf2 e5 54. Kg3 Bd7 55. Kf3 e4+ 56. Ke3 Ke5 57. Kd2 h5 58. Ke3 h4 59. Kf2 h3 60. Kg3 e3 61. Kf3 h2 62. Kg2 e2 63. Kxh2 e1Q 64. Kg2 Bc6+ 65. Kh3 Kf4 66. Kh2 Qf2+ 67. Kh3 Qg3# 0-1

