[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.10.02"]
[Round "11"]
[White "Riveron, Ricardo"]
[Black "Gomez Segura, Adalberto"]
[Result "0-1"]
[ECO "C03"]
[BlackElo "2250"]
[PlyCount "114"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 b6 4. e5 c5 5. Ngf3 Nc6 6. Bb5 Bd7 7. 0-0 Nxe5 8. Nxe5 Bxb5 9. Re1 Nf6 10. a4 Bd7 11. c3 Be7 12. f4 Kf8 13. g4 Ne8 14. g5 f6 15. Ng4 h5 16. Nf2 cxd4 17. cxd4 Nd6 18. h4 Nf5 19. Nf3 Bd6 20. Bd2 Rc8 21. Nd3 Qc7 22. Qe2 Qc4 23. Kg2 Nxd4 24. Nxd4 Qxd4 25. Bc3 Qe4+ 26. Qxe4 dxe4 27. gxf6 Rxc3 28. fxg7+ Kxg7 29. bxc3 exd3 30. Rad1 Bxf4 31. Rxd3 Bc6+ 32. Kf2 Kf6 33. Rd4 Kf5 34. Rg1 Be5 35. Rg5+ Kf6 36. Rd3 Bf4 37. Rg1 Rf8 38. c4 Ke7 39. Ke2 Be5 40. Rg5 Rf5 41. Re3 Rxg5 42. hxg5 Bf4 43. Rh3 Be8 44. a5 bxa5 45. Rb3 Bxg5 46. Rb7+ Kd6 47. Rxa7 a4 48. Ra5 Bf6 49. c5+ Kc7 50. Kd3 h4 51. Ra8 h3 52. Kc4 h2 53. Ra7+ Kb8 54. Rh7 Be5 55. c6 Bxc6 56. Kc5 Bd5 57. Kb6 Bd4+ 0-1

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.10.01"]
[Round "10"]
[White "Domenech Carpintero, Nestor"]
[Black "Riveron, Ricardo"]
[Result "1-0"]
[ECO "E91"]
[PlyCount "101"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 g6 4. Nc3 Bg7 5. e4 Bg4 6. Be2 0-0 7. 0-0 c5 8. d5 Nbd7 9. h3 Bxf3 10. Bxf3 a6 11. Be2 Qc7 12. a4 Rad8 13. Qc2 e5 14. Bg5 h6 15. Bh4 Rde8 16. Bg3 Nh7 17. Bd3 Kh8 18. Rac1 Re7 19. Kh1 f6 20. Nd1 Ref7 21. Ne3 Ng5 22. f3 Qc8 23. Bh2 Nb6 24. h4 Nh7 25. h5 gxh5 26. Nf5 Qd7 27. Nh4 Rc8 28. a5 Na8 29. f4 Nc7 30. Be2 Bf8 31. Bxh5 Rg7 32. Bg6 Rd8 33. Qe2 Ne8 34. Bf5 Qf7 35. Be6 Qc7 36. Qh5 exf4 37. Bxf4 f5 38. Bxh6 Nef6 39. Bxg7+ Kxg7 40. Qg6+ Kh8 41. Rxf5 Bg7 42. Qg3 Bh6 43. Ng6+ Kg7 44. e5 dxe5 45. Nxe5+ Bg5 46. Rxg5+ Nxg5 47. Qxg5+ Kh7 48. Rc3 Nh5 49. Qxh5+ Kg7 50. Qg6+ Kf8 51. Qf6+ 1-0

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.30"]
[Round "9"]
[White "Riveron, Ricardo"]
[Black "Hugo Soto, Victor"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "160"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 a6 7. a4 e6 8. Bc4 Nge7 9. a5 Nxa5 10. Be2 0-0 11. h4 d5 12. h5 Nac6 13. hxg6 fxg6 14. exd5 exd5 15. Qd2 Nf5 16. Nxf5 Rxf5 17. g4 Re5 18. 0-0-0 d4 19. Bh6 Qe7 20. Nd5 Rxd5 21. Bc4 Be6 22. Bxd5 Bxd5 23. Rde1 Qf7 24. Bxg7 Kxg7 25. Rhg1 Bf3 26. Ref1 Re8 27. Rg3 Qa2 28. Qd3 Qa1+ 29. Kd2 Qa5+ 30. c3 Re2+ 31. Kc1 Qa1+ 32. Qb1 Rc2+ 33. Kxc2 Be4+ 34. Rd3 Qa4+ 35. Kd2 dxc3+ 36. bxc3 Bxd3 37. Qxd3 Qxg4 38. Re1 Qf4+ 39. Kd1 Qa4+ 40. Kd2 Qf4+ 41. Kd1 Qf5 42. Qe3 h5 43. f4 h4 44. Kc1 Kh6 45. Rh1 Kh5 46. Rg1 Qf6 47. Rg5+ Kh6 48. Rd5 Ne7 49. Rd7 Nf5 50. Qc5 b6 51. Qc7 Kh5 52. Qc4 Kg4 53. Rc7 b5 54. Qe4 Ng3 55. Qb7 Qxf4+ 56. Kb2 h3 57. Rf7 Qd2+ 58. Kb3 Qd3 59. Qc8+ Nf5 60. Qg8 Nd6 61. Rc7 Qb1+ 62. Ka3 Nc4+ 63. Rxc4+ bxc4 64. Qxc4+ Kg3 65. Qc7+ Kg4 66. Qc4+ Kh5 67. Qe2+ Kh4 68. Qf2+ Kg4 69. Qe2+ Kf5 70. Qf3+ Ke5 71. Qxh3 Qe4 72. Qh8+ Kf5 73. Qc8+ Qe6 74. Qc5+ Kg4 75. Qg1+ Kf5 76. Qc5+ Kf6 77. Qf8+ Kg5 78. Qc5+ Qf5 79. Qe7+ Qf6 80. Qe3+ Kf5 0-1

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.28"]
[Round "7"]
[White "Marrero, Guzman"]
[Black "Riveron, Ricardo"]
[Result "1/2-1/2"]
[ECO "A07"]
[PlyCount "78"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3 f5 5. 0-0 Nf6 6. Bg5 Be7 7. c3 0-0 8. Nbd2 e4 9. Nd4 Nxd4 10. cxd4 exd3 11. e3 h6 12. Bxf6 Bxf6 13. Qb3 c6 14. Qxd3 Qd6 15. Rac1 Bd7 16. Nb3 b6 17. Rc2 Rac8 18. Rfc1 h5 19. Nd2 h4 20. Nf3 hxg3 21. hxg3 Kf7 22. Kf1 g5 23. g4 fxg4 24. Qh7+ Ke8 25. Qg6+ Ke7 26. Nxg5 Bxg5 27. Qxg5+ Qf6 28. Qxf6+ Rxf6 29. Bxd5 g3 30. f4 Rh8 31. Bxc6 Bf5 32. Rc3 Rxc6 33. Rxc6 Be4 34. Rc7+ Kd6 35. Rc8 Rh1+ 36. Ke2 Rh2+ 37. Kf1 Rh1+ 38. Ke2 Rh2+ 39. Kf1 Rh1+ 1/2-1/2

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.27"]
[Round "6"]
[White "Riveron, Ricardo"]
[Black "Mercantete Rodriguez, Edilberto"]
[Result "0-1"]
[ECO "B42"]
[PlyCount "92"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bd3 Be7 7. 0-0 a6 8. Kh1 b5 9. f4 Bb7 10. e5 Nd5 11. Qg4 g6 12. Be4 Nd7 13. Bxd5 exd5 14. e6 fxe6 15. Nxe6 Qb6 16. f5 Ne5 17. Qh3 gxf5 18. Be3 Qc6 19. Bd4 Rc8 20. Qxf5 Rg8 21. a4 b4 22. Ne2 Qxc2 23. Qh5+ Qg6 24. Qh3 Rc2 25. N6f4 Qg4 26. Qxg4 Rxg4 27. Rac1 b3 28. h3 Rg8 29. a5 Kd7 30. Rxc2 bxc2 31. Rc1 Rc8 32. Bc3 d4 33. Bxd4 Rc4 34. Bc3 Be4 35. Nd4 Bg5 36. Nde2 Nd3 37. Nxd3 Bxd3 38. Re1 Bxe2 39. Kh2 c1Q 40. Rxc1 Bxc1 41. Kg1 d5 42. Kf2 Bh5 43. g4 Bg6 44. Kf3 d4 45. Bxd4 Rxd4 46. Ke2 Bh6 0-1

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.26"]
[Round "5"]
[White "De la Rosa Solorzano, Jose Guillermo"]
[Black "Riveron, Ricardo"]
[Result "1/2-1/2"]
[ECO "C01"]
[PlyCount "84"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. c4 b6 3. d4 c5 4. d5 g6 5. Nc3 Bg7 6. f4 d6 7. Nf3 Ne7 8. Bd3 exd5 9. cxd5 0-0 10. 0-0 Bg4 11. h3 Bxf3 12. Qxf3 f5 13. g4 Bxc3 14. bxc3 fxg4 15. Qxg4 Qd7 16. f5 a6 17. Bh6 Rf7 18. Kh2 Ra7 19. Rf4 c4 20. Bc2 Kh8 21. Raf1 Ng8 22. Bg5 Qe8 23. R4f3 Nd7 24. Qh4 Ne5 25. R3f2 Qf8 26. Be3 Nf6 27. Bd4 g5 28. Qxg5 h6 29. Qf4 Rae7 30. Rg2 Kh7 31. Rfg1 Nh5 32. Qf2 Nf6 33. Bxe5 Rxe5 34. Qd4 Rfe7 35. Qxb6 Nxe4 36. Bxe4 Rxe4 37. Qxd6 Qxf5 38. Qxa6 Re3 39. Qg6+ Qxg6 40. Rxg6 Rxc3 41. Rc6 Re2+ 42. Rg2 Ree3 1/2-1/2

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.25"]
[Round "4"]
[White "Riveron, Ricardo"]
[Black "Bernal Lara, Luis E"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "83"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nf6 5. Be2 0-0 6. 0-0 c6 7. h3 Nbd7 8. Re1 b5 9. e5 dxe5 10. dxe5 Ne8 11. a4 b4 12. Ne4 Nc7 13. Bf4 Ne6 14. Qd2 Nxf4 15. Qxf4 Qc7 16. Ng3 c5 17. Bb5 a6 18. Bxd7 Bxd7 19. b3 Bc6 20. Qe3 Bxf3 21. gxf3 c4 22. Rac1 Rfd8 23. f4 Rd5 24. Qe4 Rc5 25. Ne2 Rd8 26. Red1 cxb3 27. cxb3 Rxc1 28. Rxc1 Qd7 29. Qxb4 Qxh3 30. Qxe7 Qg4+ 31. Ng3 Rd1+ 32. Rxd1 Qxd1+ 33. Kh2 Qxb3 34. Qe8+ Bf8 35. Ne4 Kg7 36. Ng5 Qc4 37. Kg3 Qd3+ 38. f3 Qf5 39. e6 fxe6 40. Qd7+ Be7 41. Qxe7+ Kh8 42. Nxe6 1-0

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.24"]
[Round "3"]
[White "Arango, Jorge"]
[Black "Riveron, Ricardo"]
[Result "0-1"]
[ECO "B23"]
[PlyCount "93"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. g3 c5 4. d3 d4 5. Nce2 Nc6 6. Bg2 e5 7. f4 Bg4 8. Nf3 Bxf3 9. Bxf3 Qd7 10. 0-0 h5 11. f5 Nf6 12. Bg5 Ng4 13. Bxg4 hxg4 14. f6 g6 15. c3 0-0-0 16. cxd4 Nxd4 17. Nxd4 Qxd4+ 18. Kh1 Qxb2 19. Qxg4+ Kb8 20. h4 Rxd3 21. Rad1 c4 22. Rxd3 cxd3 23. Qd7 Bc5 24. Qxd3 Qxa2 25. Rd1 Qe6 26. Qd7 Qxd7 27. Rxd7 a5 28. Rd5 b6 29. Rxe5 Bd6 30. Rb5 Kb7 31. Kg2 Kc6 32. Rb1 a4 33. Be3 Bc5 34. Kf3 Rd8 35. g4 Rd3 36. Re1 Rxe3+ 37. Rxe3 Bxe3 38. Kxe3 a3 39. h5 a2 40. hxg6 a1Q 41. g7 Qa8 42. Kf4 Kd6 43. Kg5 Ke5 44. Kh6 Qg8 45. g5 Kxe4 46. g6 Kf5 47. gxf7 0-1

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.09.23"]
[Round "2"]
[White "Riveron, Ricardo"]
[Black "Alvarez Ruiz, Esteban"]
[Result "1-0"]
[ECO "C04"]
[PlyCount "77"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 Qd5 6. Bd3 e5 7. Ne2 exd4 8. 0-0 dxc3 9. Re1 Bg4 10. N4xc3 Qd7 11. Nf4+ Be7 12. Qb3 Nf6 13. h3 0-0-0 14. hxg4 Nxg4 15. Qxf7 Nce5 16. Qf5 Nxd3 17. Qxd7+ Rxd7 18. Nxd3 Bf6 19. Nc5 Rf7 20. Be3 Be5 21. Rad1 Bh2+ 22. Kh1 Be5 23. f3 h5 24. Bd4 Bg3 25. Re2 Nh6 26. N5e4 Nf5 27. Ng5 Rd7 28. Bf2 Rxd1+ 29. Nxd1 Rd8 30. Nc3 b5 31. Nge4 Be5 32. Nxb5 h4 33. Nxa7+ Kb7 34. Nc5+ Ka8 35. Rxe5 Ng3+ 36. Bxg3 hxg3 37. Re1 Kxa7 38. Nb3 Rh8+ 39. Kg1 1-0

[Event "Las Tunas Province-ch"]
[Site "Las Tunas"]
[Date "1987.08.22"]
[Round "1"]
[White "Velazquez Santiesteba, Rigoberto"]
[Black "Riveron, Ricardo"]
[Result "1/2-1/2"]
[ECO "B30"]
[PlyCount "130"]
[EventDate "1987.08.22"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "CUB"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. e5 c5 4. d4 Nc6 5. Bb5 Nge7 6. 0-0 a6 7. Bxc6+ Nxc6 8. c3 b5 9. Be3 cxd4 10. cxd4 Bb7 11. Nbd2 h6 12. Nb3 Qb8 13. Rc1 Be7 14. Ne1 0-0 15. Qg4 Kh7 16. f4 f5 17. exf6 Rxf6 18. Nd3 Qe8 19. Ne5 Rc8 20. Qe2 Nxe5 21. dxe5 Rg6 22. Nd4 Bc5 23. Qd3 Bxd4 24. Bxd4 Rc6 25. Rxc6 Qxc6 26. b3 a5 27. Qb1 b4 28. Rf3 Qe8 29. Rg3 Qf7 30. Bb6 a4 31. bxa4 Qf5 32. Qxf5 exf5 33. Rxg6 Kxg6 34. Bc5 Kf7 35. Bxb4 d4 36. a5 g5 37. Bd2 g4 38. Kf2 Ke6 39. Kg3 Kf7 40. Bb4 h5 41. Bc5 d3 42. Bb4 Ke6 43. Kf2 h4 44. g3 hxg3+ 45. hxg3 Kd5 46. Ke3 Ba6 47. Be1 Bc4 48. a3 Bb5 49. Kd2 Kc4 50. Bf2 Kd5 51. Kc3 Ba6 52. a4 Kc6 53. Be3 Kd5 54. Kb4 Kc6 55. e6 Kd6 56. e7 Kxe7 57. Kc5 Kd7 58. Kd5 Kc7 59. Ke5 d2 60. Bxd2 Bd3 61. a6 Kb8 62. Be3 Ka8 63. a5 Bb1 64. a7 Be4 65. Ke6 Bc2 1/2-1/2

