[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.1"]
[White "Fernandez Cardoso, Alexey"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2437"]
[BlackElo "2577"]
[ECO "B93"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.f4"]
[WhiteFideId "3504379"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 g6 7. Nf3 Nc6 8. e5
Nh5 9. Be3 Bg7 10. Nd5 O-O 11. exd6 Qxd6 12. c3 Bg4 13. Nb6 Qe6 14. Qe2 Rad8 15.
Ng5 Qf5 16. Qf2 Qa5 17. Rc1 e5 18. f5 Bxf5 19. Bc5 Bf6 20. h4 Be7 21. Bxe7 Nxe7
22. Bc4 Nc8 23. Nxc8 Rxc8 24. Bb3 Nf4 25. Rd1 Qb5 26. h5 Rcd8 27. Bxf7+ Kg7 28.
h6+ Kf6 29. Rh3 Rxd1+ 30. Kxd1 Rd8+ 31. Ke1 Nxh3 32. gxh3 Kxg5 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.2"]
[White "Gonzalez Vidal, Yuri"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2565"]
[BlackElo "2550"]
[ECO "A41"]
[Opening "Queen's Pawn"]
[WhiteFideId "3503321"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Nf6 5. e3 O-O 6. Be2 c5 7. d5 e6 8. O-O exd5
9. cxd5 a6 10. a4 Bg4 11. h3 Bxf3 12. Bxf3 Nbd7 13. Qc2 Re8 14. Rd1 Qc7 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.3"]
[White "Garcia Pantoja, Roberto"]
[Black "Quesada Perez, Yasser"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2514"]
[BlackElo "2538"]
[ECO "C78"]
[Opening "Ruy Lopez"]
[Variation "Archangelsk (counterthrust) variation"]
[WhiteFideId "3509265"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 7. Nc3 Be7 8. d3
O-O 9. a3 Nd4 10. Ba2 Nxf3+ 11. Qxf3 c6 12. Qg3 d6 13. Bh6 Ne8 14. Bd2 Bh4 15.
Qg4 Bc8 16. Qe2 Bg5 17. f4 exf4 18. Bxf4 Qb6+ 19. Kh1 Bxf4 20. Rxf4 Nc7 21. Raf1
Be6 22. Qh5 Qc5 23. Qf3 Ra7 24. Bxe6 Nxe6 25. Rf5 Qb6 26. Ne2 b4 27. a4 Rb7 28.
Qg3 Rd8 29. Nf4 Nxf4 30. Qxf4 Qc7 31. Rf3 Re8 32. Rg3 Re6 33. Qf2 c5 34. b3 Qe7
35. Rgf3 Re5 36. Qg3 Qe8 37. Rxe5 Qxe5 38. Qxe5 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.4"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Espinosa Veloz, Ermes"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2547"]
[BlackElo "2516"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "modern exchange variation"]
[WhiteFideId "3504727"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 Nf6 2. c4 g6 3. d4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8.
Be3 Qa5 9. Nd2 O-O 10. Rc1 cxd4 11. Nc4 Qd8 12. cxd4 b5 13. Nd2 Bb7 14. d5 a6
15. Qb3 f5 16. Rc7 Bc8 17. Bg5 Bf6 18. Bxf6 Rxf6 19. e5 Rf7 20. d6 Kf8 21. Qd5 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.5"]
[White "Hernandez Gonzalez, William"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2445"]
[BlackElo "2519"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]
[WhiteFideId "3509915"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. Nc3 Rc8 8.
Bg5 h6 9. Bh4 e5 10. Qd3 g5 11. Bg3 Nf6 12. Nd2 b5 13. a3 Be7 14. O-O-O Be6 15.
h4 Rg8 16. hxg5 hxg5 17. Nd5 Bxd5 18. exd5 Rc5 19. Ne4 Nxe4 20. Qxe4 Qd7 21. Qh7
Rf8 22. f3 Bf6 23. Bf2 Rc4 24. Be3 Rh4 25. Rxh4 gxh4 26. Kb1 Rh8 27. Qd3 h3 28.
Rh1 hxg2 29. Rxh8+ Bxh8 30. Qh7 Bf6 31. Qg8+ Ke7 32. Qxg2 Qf5 33. Bd2 Bh4 34.
Qe2 Kf8 35. Qe3 Be7 36. Bb4 Kg7 37. Bd2 Qh3 38. Ka2 Kg6 39. Qg1+ Kh7 40. Qe3 Kg6
41. Qg1+ 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.03"]
[Round "1.6"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Martinez Ramirez, Lennis"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2513"]
[BlackElo "2452"]
[ECO "A22"]
[Opening "English"]
[Variation "Carls' Bremen system"]
[WhiteFideId "3520773"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bc5 5. e3 d5 6. cxd5 Nb4 7. d4 exd4 8. exd4
Be7 9. Nge2 Nbxd5 10. O-O O-O 11. Qb3 c6 12. Nxd5 Nxd5 13. Nc3 Nb4 14. d5 Bf5
15. dxc6 bxc6 16. Rd1 Qa5 17. Ne4 Rad8 18. Bd2 Qb6 19. Be3 c5 20. Rxd8 Rxd8 21.
Rd1 a5 22. a3 Be6 23. Qa4 Nd3 24. b4 axb4 25. axb4 Qxb4 26. Qa7 c4 27. Ra1 c3
28. Ra4 Qb1+ 29. Bf1 Bb4 30. Qb6 Rc8 31. Nxc3 Qe1 32. Qb5 Bc4 33. Qf5 Rf8 34.
Qe4 Ne5 35. Qb1 Nf3+ 36. Kh1 Qxb1 37. Nxb1 Bxf1 38. Rxb4 Bh3 39. Nd2 Ra8 40.
Nxf3 Ra1+ 41. Ng1 h6 42. Rc4 Be6 43. Rc1 Bd5+ 44. f3 Ra2 45. Rd1 Ba8 46. Rd2 Ra3
47. Kg2 g5 48. Kf2 f5 49. Ne2 Kf7 50. Rb2 Rd3 51. Rb6 Kg7 52. Nd4 f4 53. gxf4
gxf4 54. Ne6+ Kh7 55. Nxf4 Ra3 56. Nh5 Ra2+ 57. Kg3 Ra3 58. Rxh6+ Kg8 59. Re6
Kf7 60. Re5 Bc6 61. Re7+ Kg6 62. Re6+ Kf7 63. Rf6+ Kg8 64. Rxc6 Rxe3 65. Rc7 Re1
66. h4 Kh8 67. Kg4 Re5 68. f4 Re6 69. f5 Re4+ 70. Kg5 Ra4 71. Nf4 Ra6 72. Ng6+
Kg8 73. Kh6 Ra7 74. Rc8+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.1"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Martinez Ramirez, Lennis"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2577"]
[BlackElo "2452"]
[ECO "C65"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, Mortimer variation"]
[WhiteFideId "3518736"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Ne7 5. Bc4 c6 6. O-O Ng6 7. Re1 Be7 8. d4
d6 9. h3 O-O 10. Nc3 h6 11. Bb3 b5 12. a4 b4 13. Na2 a5 14. c3 c5 15. Bc4 cxd4
16. cxd4 Bb7 17. d5 Rc8 18. Bb5 Nd7 19. Nd2 f5 20. exf5 Nf4 21. Nc4 Nf6 22. Bxf4
exf4 23. Nxa5 Qxa5 24. Rxe7 Bxd5 25. Qd2 Rc5 26. Qxb4 Qa8 27. Bf1 f3 28. g3 Rb8
29. Qd4 Bxa2 30. Rxa2 Rc1 31. Qd2 Rbc8 32. Re1 R1c2 33. Qd4 d5 34. Ra3 Ne4 35.
Rxf3 Rd2 36. Rd3 Rxf2 37. Qxd5+ Qxd5 38. Rxd5 Rf3 39. Rd3 Ng5 40. Be2 Rxd3 41.
Bxd3 Nf3+ 42. Kf2 Nxe1 43. Kxe1 Rb8 44. Bc4+ Kf8 45. b3 Ke7 46. a5 Kf6 47. a6
Kxf5 48. Bd5 Re8+ 49. Kf2 Re7 50. Bb7 Kf6 51. a7 Rxb7 52. a8=Q Rxb3 53. Qc6+ Ke5
54. Qc7+ Ke4 55. Qc4+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.2"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2519"]
[BlackElo "2513"]
[ECO "C16"]
[Opening "French"]
[Variation "Winawer, advance variation"]
[WhiteFideId "3507165"]
[BlackFideId "3520773"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Qg4 Bf8 6. Nf3 Ba6 7. Bxa6 Nxa6 8. O-O
Qd7 9. a3 Ne7 10. Ne2 Nb8 11. Ng3 Nbc6 12. Bd2 h6 13. Nh5 Nf5 14. Bb4 O-O-O 15.
c3 Kb7 16. Qf4 Qe8 17. g4 Nfe7 18. Ne1 a5 19. Bxe7 Qxe7 20. Nd3 g6 21. Nf6 a4
22. Rae1 Bg7 23. Re3 Bxf6 24. exf6 Qd6 25. Qf3 g5 26. Qd1 h5 27. gxh5 g4 28. Ne5
Rxh5 29. Nxg4 Rg8 30. Rg3 Qf4 31. f3 Na5 32. Qxa4 Nc4 33. Qc2 Ne3 34. Qd2 Rxh2
35. Qxh2 Nxf1 36. Kxf1 Rxg4 37. Kg2 Qd2+ 38. Kh1 Qd1+ 39. Kg2 Qe2+ 40. Kg1 Qe3+
41. Kh1 Rf4 42. Qh6 Qe1+ 43. Kg2 Rf5 44. Qh2 Rxf6 45. Qg1 Qd2+ 46. Qf2 Qd3 47.
Qe1 Rh6 48. Rh3 Qc2+ 49. Kg3 Rg6+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.3"]
[White "Espinosa Veloz, Ermes"]
[Black "Hernandez Gonzalez, William"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2516"]
[BlackElo "2445"]
[ECO "C42"]
[Opening "Petrov"]
[Variation "Paulsen attack"]
[WhiteFideId "3507424"]
[BlackFideId "3509915"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4 Nxe4 5. Qe2 Qe7 6. Ne3 Nf6 7. b3 g6 8. Bb2
Bg7 9. Nd5 Nxd5 10. Bxg7 Rg8 11. Bb2 Bf5 12. Na3 Nc6 13. Qxe7+ Kxe7 14. d3 Kd7
15. Kd2 Rge8 16. Nc4 Be6 17. a4 a6 18. h3 f5 19. a5 Re7 20. g3 f4 21. g4 Rf8 22.
Rg1 Ree8 23. Re1 Nde7 24. h4 Rf7 25. Kc1 h6 26. Bc3 d5 27. Ne5+ Nxe5 28. Rxe5
Nc6 29. Re1 d4 30. Bd2 Bd5 31. Rxe8 Kxe8 32. g5 h5 33. Bh3 Ne5 34. Re1 Re7 35.
Kd1 Bf3+ 36. Kc1 c5 37. Kb1 Bg4 38. Bxf4 Bxh3 39. Bxe5 Kd7 40. b4 cxb4 41. Re4
Kc6 42. f4 Rd7 43. Rxd4 Rxd4 44. Bxd4 b3 45. cxb3 Kd5 46. Be3 Bf5 47. Kc2 Bd7
48. Kc3 Bc8 49. Bd4 Bd7 50. Be5 Bc8 51. Bg7 Bd7 52. Bf6 Bc8 53. Be5 Bd7 54. b4
Bc8 55. Bg7 Bf5 56. Bf6 Bg4 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.4"]
[White "Quesada Perez, Yasser"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2538"]
[BlackElo "2547"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed, 2...Nc6"]
[WhiteFideId "3509362"]
[BlackFideId "3504727"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 a6 5. Bd3 Nc6 6. O-O g6 7. e5 Bg7 8. Be4
f5 9. Bxc6 bxc6 10. d4 cxd4 11. Qxd4 Qc7 12. Bf4 c5 13. Qe3 Bb7 14. Rad1 h6 15.
Nd5 Bxd5 16. Rxd5 g5 17. Bxg5 hxg5 18. Qxg5 Bh6 19. Qg6+ Kd8 20. Rfd1 Ra7 21. h3
Kc8 22. Rxc5 Qxc5 23. Qe8+ Kc7 24. Rxd7+ Kb6 25. Qb8+ Ka5 26. b4+ Qxb4 27. Rd5+
Ka4 28. Rd4 Qxd4 29. Nxd4 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.5"]
[White "Almeida Quintana, Omar"]
[Black "Garcia Pantoja, Roberto"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2550"]
[BlackElo "2514"]
[ECO "E71"]
[Opening "King's Indian"]
[Variation "Makagonov system (5.h3)"]
[WhiteFideId "3503313"]
[BlackFideId "3509265"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 e5 7. d5 Na6 8. g4 Nc5
9. f3 a5 10. h4 c6 11. Qd2 cxd5 12. cxd5 Bd7 13. h5 a4 14. Nge2 Qa5 15. Ng3 Rfc8
16. hxg6 fxg6 17. g5 Ne8 18. Rb1 Nc7 19. Bh3 Bxh3 20. Rxh3 Nb5 21. Nge2 Qb4 22.
a3 Qc4 23. Rd1 Nd4 24. Kf2 Rc7 25. Kg2 Rf8 26. Nc1 Rcf7 27. Rf1 b5 28. Qd1 b4
29. axb4 Qxb4 30. Rf2 a3 31. N3a2 Qc4 32. bxa3 Ra8 33. Bxd4 exd4 34. Rc2 Qb5 35.
Nb4 Rxa3 36. Nc6 d3 37. Rf2 Qc4 38. Qd2 Rc3 39. Rh1 Nxe4 40. Qe1 Nxf2 41. Qe8+
Bf8 42. Rxh7 Qxd5 43. Ne7+ Rxe7 44. Qxg6+ Rg7 45. Rxg7+ Bxg7 46. Qe8+ Bf8 47.
Qg6+ Kh8 48. Qh5+ Kg7 49. Qh6+ Kf7 50. Qf6+ Ke8 51. Qxc3 d2 52. Qc8+ Kf7 53.
Qd7+ Be7 54. g6+ Kf6 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.04"]
[Round "2.6"]
[White "Fernandez Cardoso, Alexey"]
[Black "Gonzalez Vidal, Yuri"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2437"]
[BlackElo "2565"]
[ECO "C92"]
[Opening "Ruy Lopez"]
[Variation "closed, Flohr-Zaitsev system (Lenzerheide variation)"]
[WhiteFideId "3504379"]
[BlackFideId "3503321"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3
O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a4 h6 13. d5 Nb8 14. c4 bxc4 15. Nxc4
a5 16. g4 c6 17. dxc6 Nxc6 18. g5 hxg5 19. Nxg5 d5 20. exd5 Nd4 21. d6 Bd5 22.
Ba2 Bxd6 23. Be3 Bc7 24. Bxd4 exd4 25. Qxd4 Rxe1+ 26. Rxe1 Qd7 27. Bb3 Re8 28.
Rxe8+ Qxe8 29. Qe3 Qb8 30. Nf3 Bf4 31. Qc3 Qc8 32. Nd4 Ne4 33. Qf3 Qb8 34. Ne3
Bxb3 35. Qxe4 Bxe3 36. Qxe3 Bxa4 37. b3 Bd7 38. h4 Qd6 39. Kg2 Qd5+ 40. Kg3 Qh1
41. f3 Qh3+ 42. Kf2 Qxh4+ 43. Ke2 Qh2+ 44. Kd3 Qc7 45. Qg5 g6 46. Qf6 Be8 47.
Kd2 Qd7 48. Qe5 Qd8 49. Ke3 f6 50. Qc5 Bf7 51. Nc6 Qd1 52. Kf2 Bxb3 53. Nxa5
Qd2+ 54. Kf1 Be6 55. Kg1 Bh3 56. Qc4+ Kg7 57. Qc7+ Kh6 58. Qg3 Be6 59. Qc7 Bd5
60. Qd8 Qd4+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.1"]
[White "Gonzalez Vidal, Yuri"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2565"]
[BlackElo "2577"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]
[WhiteFideId "3503321"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Bf1 Bg4 8. h3
Bxf3 9. Qxf3 e6 10. d3 Be7 11. Nd2 O-O 12. Qe2 b5 13. Nf3 b4 14. Qc2 Nd7 15. d4
bxc3 16. bxc3 cxd4 17. cxd4 Nb4 18. Qb3 d5 19. e5 Nc6 20. Be3 Nb6 21. Bd2 Rb8
22. Rec1 Nc4 23. Qa4 Nxd2 24. Nxd2 Qa5 25. Qxa5 Nxa5 26. Nf3 Rb6 27. Rab1 Rfb8
28. Rc8+ Rxc8 29. Rxb6 Rc2 30. a4 Ra2 31. Rxa6 Rxa4 32. Ra7 Bf8 33. Ng5 Ra3 34.
Nxf7 Nc6 35. Rc7 Nxd4 36. Nd8 Ra1 37. g3 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.2"]
[White "Garcia Pantoja, Roberto"]
[Black "Fernandez Cardoso, Alexey"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2514"]
[BlackElo "2437"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]
[WhiteFideId "3509265"]
[BlackFideId "3504379"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Nc3 a6 6. Bxc6 Nxc6 7. d4 cxd4 8.
Nxd4 d6 9. Re1 Be7 10. Nxc6 bxc6 11. Qg4 Kf8 12. Qh5 Rb8 13. b3 g6 14. Bh6+ Kg8
15. Qf3 e5 16. Rad1 Be6 17. Qg3 g5 18. Bxg5 Bxg5 19. h4 h6 20. hxg5 hxg5 21. Rd3
Qe7 22. Red1 Rd8 23. Qe3 Rh6 24. Qb6 Kg7 25. Ne2 d5 26. Ng3 d4 27. Qxc6 Rc8 28.
Qxa6 Rxc2 29. R3d2 Rc3 30. Rd3 Rc7 31. Qa5 f6 32. Qd2 Qa3 33. b4 Qa4 34. Rc1
Rxc1+ 35. Qxc1 Kg6 36. a3 Rh8 37. Nf5 Qd7 38. Rf3 Bxf5 39. exf5+ Kg7 40. Qb1 Qc7
41. b5 e4 42. Rh3 Re8 43. Qd1 Rc8 44. Qxd4 Rd8 45. Qa1 Rd5 46. Re3 Qc2 47. Rc3
Rd1+ 48. Kh2 Qd2 49. Rc7+ Kg8 50. Qc3 Qf4+ 51. Qg3 Rb1 52. a4 Kf8 53. Rc4 Re1
54. b6 Ke7 55. a5 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.3"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2547"]
[BlackElo "2550"]
[ECO "B07"]
[Opening "Pirc defence"]
[WhiteFideId "3504727"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. f3 Bg7 6. Qd2 b5 7. h4 h5 8. Nh3 Bxh3
9. Rxh3 Nbd7 10. Bd3 Qc7 11. Ne2 Rb8 12. c3 a5 13. Kf1 e5 14. Re1 O-O 15. Bh6
Rfe8 16. Ng3 Bh8 17. a3 b4 18. axb4 axb4 19. Be3 bxc3 20. bxc3 Qa5 21. Qc2 Bg7
22. Rh1 d5 23. Kf2 c5 24. Ra1 Qc7 25. dxc5 Nxc5 26. Rhb1 Rbc8 27. Bb5 Red8 28.
Kf1 dxe4 29. Bxc5 Qxc5 30. Nxe4 Nxe4 31. Qxe4 Qxc3 32. Ra7 Rb8 33. Be2 Rxb1+ 34.
Qxb1 Bh6 35. Qa1 Qb4 36. Qa2 Qf4 37. g3 Qf5 38. Kg2 Rd2 39. Qc4 Rc2 40. Qb5 Be3
41. Qe8+ Kg7 42. Rxf7+ Qxf7 43. Qxe5+ Qf6 44. Qxe3 Qd6 45. Kf2 Qc5 46. Qxc5 Rxc5
47. Bd3 Rc3 48. Be4 Kf6 49. Kg2 Ra3 50. Kh3 Ra6 51. g4 Ke5 52. Kg3 Rd6 53. Bc2
Rc6 54. Be4 Rb6 55. Bc2 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.4"]
[White "Hernandez Gonzalez, William"]
[Black "Quesada Perez, Yasser"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2445"]
[BlackElo "2538"]
[ECO "C45"]
[Opening "Scotch"]
[Variation "Mieses variation"]
[WhiteFideId "3509915"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8.
c4 Nb6 9. Nc3 Qe6 10. Qe4 Bb4 11. Bd2 Ba6 12. b3 Bxc3 13. Bxc3 d5 14. cxd5 cxd5
15. Qb4 Bxf1 16. Rxf1 Nd7 17. O-O-O c5 18. Qb7 Nb6 19. f4 O-O 20. f5 Qh6+ 21.
Bd2 Qxh2 22. Bf4 Qxg2 23. Rg1 Qh3 24. Qc6 g6 25. Qf6 Qc3+ 26. Kb1 Nc4 27. Bc1
Rab8 28. Qa6 Rb6 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.5"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Espinosa Veloz, Ermes"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2513"]
[BlackElo "2516"]
[ECO "A14"]
[Opening "English"]
[Variation "Neo-Catalan declined"]
[WhiteFideId "3520773"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. b3 b6 7. Bb2 Bb7 8. e3
Nbd7 9. Nc3 Ne4 10. Qc2 Nxc3 11. Bxc3 c6 12. Rac1 Rc8 13. Rfd1 Re8 14. Qb2 Bf8
15. d3 b5 16. cxb5 cxb5 17. Qd2 Qe7 18. Ne5 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.05"]
[Round "3.6"]
[White "Martinez Ramirez, Lennis"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2452"]
[BlackElo "2519"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]
[WhiteFideId "3509079"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4
Qb6 9. a3 Nbd7 10. Be2 Be7 11. Bf2 Qc7 12. g4 g5 13. f5 Ne5 14. h3 Bd7 15. Nf3
Bc6 16. Qd4 Rc8 17. Bg3 Nxf3+ 18. Bxf3 e5 19. Qe3 b5 20. h4 Rg8 21. hxg5 hxg5
22. Bf2 a5 23. Rh6 Qb8 24. Qd3 b4 25. axb4 axb4 26. Nd1 d5 27. exd5 e4 28. Qd4
exf3 29. Rxf6 Qb5 30. c4 bxc3 31. Nxc3 Qxb2 32. Rb1 Bxf6 33. Qxf6 Qa3 34. d6 Kf8
35. Qe7+ Kg7 36. Qxg5+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.1"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2519"]
[ECO "B90"]
[Opening "Sicilian"]
[Variation "Najdorf"]
[WhiteFideId "3518736"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h4 e6 7. g4 b5 8. a3 Bb7
9. Bg2 d5 10. e5 Nfd7 11. f4 Nc6 12. Be3 b4 13. axb4 Bxb4 14. h5 Nb6 15. Nxc6
Bxc6 16. Bd4 Nc4 17. Qc1 O-O 18. b3 Rc8 19. Rh3 Na5 20. f5 Bd7 21. f6 gxf6 22.
exf6 Kh8 23. Qh6 Rg8 24. O-O-O Nc6 25. Bf1 Bf8 26. Qf4 e5 27. Bxe5 Rxg4 28. Qh2
d4 29. Rhd3 Qa5 30. Re1 dxc3 31. Bxc3 Bb4 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.2"]
[White "Espinosa Veloz, Ermes"]
[Black "Martinez Ramirez, Lennis"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2516"]
[BlackElo "2452"]
[ECO "B94"]
[Opening "Sicilian"]
[Variation "Najdorf, 6.Bg5"]
[WhiteFideId "3507424"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qc7 8.
Qe2 h6 9. Bh4 g6 10. O-O-O Bg7 11. f4 O-O 12. Rhf1 b5 13. Bb3 Bb7 14. Bxf6 Bxf6
15. f5 Nc5 16. fxg6 Nxb3+ 17. axb3 fxg6 18. Ne6 Qa5 19. Nxf8 Rxf8 20. Kb1 Qb4
21. Qd2 Kg7 22. Nd5 Qxd2 23. Rxd2 Be5 24. Rxf8 Kxf8 25. g3 h5 26. b4 e6 27. Nf4
Bxe4 28. Nxe6+ Ke7 29. Nc5 Bc6 30. Nd3 Bg7 31. Nf4 Be8 32. Re2+ Kd7 33. Nd5 Be5
34. Rxe5 dxe5 35. Nf6+ Ke7 36. Nxe8 Kxe8 37. Kc1 Kd7 38. Kd2 Ke6 39. Ke3 Kd5 40.
b3 g5 41. h3 e4 42. g4 hxg4 43. hxg4 Ke5 44. c4 Kd6 45. Kxe4 Kc6 46. Kf5 Kd6 47.
Kxg5 bxc4 48. bxc4 Ke5 49. Kh6 Kd4 50. c5 Kd5 51. g5 a5 52. bxa5 Kxc5 53. g6 Kb5
54. g7 Kxa5 55. g8=Q 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.3"]
[White "Quesada Perez, Yasser"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2538"]
[BlackElo "2513"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed"]
[WhiteFideId "3509362"]
[BlackFideId "3520773"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nc3 a6 3. g3 b5 4. Bg2 Bb7 5. Nge2 d6 6. d4 cxd4 7. Nxd4 Nf6 8. O-O
g6 9. Nd5 Nbd7 10. a4 e5 11. Nb3 Nxd5 12. exd5 Bg7 13. Bd2 O-O 14. Na5 Qc7 15.
Bb4 e4 16. Nxb7 Qxb7 17. Bxd6 Rfe8 18. axb5 axb5 19. Rxa8 Qxa8 20. Re1 Nf6 21.
Ba3 Qb8 22. c3 Qe5 23. Qb3 Bf8 24. Bxf8 Rxf8 25. Qxb5 Rb8 26. Qe2 Qxd5 27. Qc2
Qa2 28. Rb1 e3 29. Bf3 exf2+ 30. Kxf2 h5 31. Kg1 Ng4 32. Bxg4 hxg4 33. h3 gxh3
34. Kh2 Rb5 35. Qe2 Rb8 36. Qd3 Rxb2+ 37. Rxb2 Qxb2+ 38. Kxh3 f5 39. c4 Qf2 40.
Kh4 Kg7 41. Kg5 Qa7 42. Qc3+ Kh7 43. Qe1 Qc7 44. Qh1+ Kg8 45. Qd5+ Kh7 46. c5
Qxg3+ 47. Kf6 Qh4+ 48. Kf7 Qh6 49. Qe5 f4 50. c6 f3 51. c7 f2 52. Qh8+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.4"]
[White "Almeida Quintana, Omar"]
[Black "Hernandez Gonzalez, William"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2550"]
[BlackElo "2445"]
[ECO "E10"]
[Opening "Blumenfeld counter-gambit, Spielmann variation"]
[WhiteFideId "3503313"]
[BlackFideId "3509915"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 7. Bxf6 Qxf6 8. Qc2
Be7 9. e4 Qb6 10. a4 bxa4 11. Nbd2 Na6 12. Qxa4 Nb4 13. Bc4 O-O 14. O-O d6 15.
Rfe1 Bf6 16. Bf1 Qd8 17. Nc4 Bg4 18. Nfd2 a6 19. Qb3 Bc8 20. f4 Rb8 21. e5 dxe5
22. fxe5 Bg5 23. d6 Nc6 24. Qd1 Be6 25. Nf3 a5 26. b3 Bg4 27. Be2 Be6 28. Bd3
Nd4 29. Nxd4 cxd4 30. Qf3 Rxb3 31. Bh7+ Kxh7 32. Qxb3 Be3+ 33. Kh1 Qg5 34. Qd3+
Bf5 35. Qe2 Bg4 36. Qf1 Kg8 37. Rxa5 Bd2 38. Nxd2 Qxd2 39. Ra3 Qb4 40. Rg3 Bf5
41. Rd1 Bc2 42. Qf6 g6 43. e6 Qb7 44. d7 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.5"]
[White "Fernandez Cardoso, Alexey"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2437"]
[BlackElo "2547"]
[ECO "B01"]
[Opening "Scandinavian (centre counter) defence"]
[WhiteFideId "3504379"]
[BlackFideId "3504727"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Bc4 c6 5. Nge2 Bf5 6. O-O Nf6 7. d3 e6 8.
Ng3 Nbd7 9. Bd2 Bg6 10. f4 Bd6 11. Qe2 O-O 12. Nce4 Bb4 13. c3 Be7 14. Ng5 Rae8
15. b4 Qc7 16. Rae1 h6 17. Nf3 Nh5 18. Nxh5 Bxh5 19. d4 a5 20. a3 Bd6 21. g3
axb4 22. axb4 Ra8 23. Bd3 b5 24. Qg2 Bxf3 25. Rxf3 Nf6 26. Bb1 h5 27. h3 Nd5 28.
Ref1 f5 29. Qe2 Rf6 30. R3f2 Qf7 31. Qd3 Ra3 32. Qc2 Rg6 33. Rg2 Rh6 34. Qc1 Qa7
35. Re1 Rg6 36. g4 hxg4 37. hxg4 Bxb4 38. gxf5 Rxg2+ 39. Kxg2 Bxc3 40. fxe6 Bxd2
41. Qxd2 Qe7 42. Qf2 Qf6 43. Kf1 Kf8 44. Be4 Qxe6 45. Bg2 Qf5 46. Kg1 Qg4 47.
Qc2 Re3 48. Ra1 Re2 49. Ra8+ Kf7 50. Ra7+ Ne7 51. Qxc6 Re1+ 52. Kf2 Qh4+ 53. Kf3
Qh5+ 54. Kg3 Re3+ 55. Bf3 Qg6+ 56. Qxg6+ Kxg6 57. Kf2 Nf5 58. Ra6+ Kf7 59. Rb6
g6 60. Bd5+ Kg7 61. Rxb5 Re2+ 62. Kf1 Rd2 63. Rb7+ Kh6 64. Bg8 Kh5 65. d5 Kg4
66. Ke1 Rd4 67. Bf7 Nh4 68. Ke2 Kxf4 69. Rb6 g5 70. Rf6+ Ke4 71. Re6+ Kf5 72.
Rc6 Ng2 73. Rc3 Nf4+ 74. Kf2 g4 75. Be6+ Kg5 76. Rg3 Nxd5 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.06"]
[Round "4.6"]
[White "Gonzalez Vidal, Yuri"]
[Black "Garcia Pantoja, Roberto"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2565"]
[BlackElo "2514"]
[ECO "C07"]
[Opening "French"]
[Variation "Tarrasch, open variation"]
[WhiteFideId "3503321"]
[BlackFideId "3509265"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd6 7. O-O Nf6 8.
Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Bd7 12. Bg5 O-O-O 13. Re3 Bc6 14. Rd3
Be4 15. Nb5 Qe7 16. Rxd8+ Qxd8 17. Na7+ Kc7 18. Qxd8+ Kxd8 19. Rd1+ Kc7 20. Bf4+
Kb6 21. Nc8+ Kc6 22. Na7+ Kb6 23. Nc8+ Kc6 24. Na7+ Kb6 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.1"]
[White "Garcia Pantoja, Roberto"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2514"]
[BlackElo "2577"]
[ECO "B33"]
[Opening "Sicilian"]
[Variation "Pelikan, Chelyabinsk variation"]
[WhiteFideId "3509265"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3
b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 O-O 13. h4 Be6 14. g3 a5 15. Bg2
Bxd5 16. cxd5 Nb8 17. Ne3 Na6 18. Rc1 Rc8 19. Rxc8 Qxc8 20. Bh3 Qb8 21. O-O Nc5
22. Qf3 Bd8 23. Rc1 Bb6 24. Nc4 Qd8 25. h5 Ba7 26. h6 Qg5 27. Rd1 Qxh6 28. Kg2
Nb7 29. Bd7 Qg5 30. Qf5 Qd8 31. Bc6 Nc5 32. Rh1 g6 33. Qh3 h5 34. f3 f5 35. exf5
Rxf5 36. Qh4 Qf8 37. Rf1 e4 38. f4 Rf6 39. Re1 Qe7 40. f5 Qf8 41. Qg5 Qg7 42.
fxg6 Rxg6 43. Qd8+ Qf8 44. Qxf8+ Kxf8 45. Rf1+ Ke7 46. Rf5 Nd3 47. Kh2 h4 48. g4
Rxg4 49. Bd7 Bg1+ 50. Kh3 Nf2+ 51. Rxf2 Rg3+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.2"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Gonzalez Vidal, Yuri"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2547"]
[BlackElo "2565"]
[ECO "A13"]
[Opening "English"]
[Variation "Neo-Catalan accepted"]
[WhiteFideId "3504727"]
[BlackFideId "3503321"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qa4+ Nbd7 6. O-O a6 7. Qxc4 b5 8.
Qc2 Bb7 9. b3 Be7 10. Bb2 c5 11. d3 O-O 12. Nbd2 Qb6 13. Rac1 Rac8 14. Qb1 Rfd8
15. Qa1 Qa7 16. Rc2 Qa8 17. Rfc1 Bf8 18. a3 h6 19. Nf1 Nd5 20. N1d2 N5b6 21. h4
a5 22. a4 bxa4 23. bxa4 Bc6 24. Nc4 Nxa4 25. Be5 Nab6 26. Nxb6 Nxb6 27. Rxc5 a4
28. R5c3 Bb7 29. Rc7 Nd5 30. R7c4 a3 31. Nd2 f6 32. Bd4 Rxc4 33. Nxc4 e5 34. Bb6
Nxb6 35. Nxb6 Qa6 36. Qa2+ Kh8 37. Nd5 Qe6 38. e4 Bxd5 39. exd5 Qd7 40. Rc6 Bd6
41. Ra6 Qb7 42. Rxd6 Rxd6 43. Qxa3 Qa6 44. Qb4 f5 45. Qb8+ Kh7 46. h5 Qb6 47.
Qc8 Rf6 48. Qe8 Qd4 49. Bh3 Qxd3 50. Qxe5 Qd1+ 51. Kh2 Qxh5 52. d6 Qf7 53. Qe7
Kg8 54. Qe5 Qd7 55. Kg1 Qxd6 56. Qxd6 Rxd6 57. Bxf5 Kf7 58. Kg2 Kf6 59. Be4 Ke5
60. f3 Kd4 61. Kh3 Ke3 62. Kh4 Rf6 63. Kg4 Kf2 64. f4 Re6 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.3"]
[White "Hernandez Gonzalez, William"]
[Black "Fernandez Cardoso, Alexey"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2445"]
[BlackElo "2437"]
[ECO "B42"]
[Opening "Sicilian"]
[Variation "Kan, 5.Bd3"]
[WhiteFideId "3509915"]
[BlackFideId "3504379"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. c4 d6 8. Nc3
g6 9. Be3 Bg7 10. Rc1 O-O 11. f3 Nbd7 12. Qd2 Ne5 13. Be2 Re8 14. b3 b6 15. Rfd1
Bb7 16. Na4 Ned7 17. Bf1 Rac8 18. Ne2 Bf8 19. Bd4 Bc6 20. Nxb6 Nxb6 21. Bxf6 Nd7
22. Bb2 a5 23. Qd4 e5 24. Qd2 Qb6+ 25. Kh1 Nc5 26. Ba3 Ne6 27. Rc3 d5 28. c5 Qa7
29. exd5 Bxd5 30. Qe3 Ba8 31. Rdc1 Nc7 32. Rc4 Nd5 33. Qd2 Rcd8 34. Ng3 Nb4 35.
Qe1 Bd5 36. Ne4 Be7 37. Bxb4 Bxc4 38. Bxc4 axb4 39. Qxb4 Kg7 40. Bb5 Rd4 41. Qe1
Rc8 42. c6 Qxa2 43. Ba4 Qa3 44. h3 Bb4 45. Qf1 Ba5 46. Rc2 Rcd8 47. Qb5 Bc7 48.
Qe2 f5 49. Nc5 Qa1+ 50. Kh2 e4+ 51. g3 Rd1 52. Qf2 e3 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.4"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2513"]
[BlackElo "2550"]
[ECO "A37"]
[Opening "English"]
[Variation "symmetrical variation"]
[WhiteFideId "3520773"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 g6 2. Nc3 Bg7 3. g3 c5 4. Bg2 Nc6 5. Nf3 d6 6. O-O e6 7. a3 Nge7 8. Rb1 b6
9. d3 Bb7 10. Bd2 O-O 11. b4 Qd7 12. Qc1 Nd4 13. e4 f5 14. Bh6 Nxf3+ 15. Bxf3
fxe4 16. Bxe4 Bxh6 17. Qxh6 Nf5 18. Qd2 Nd4 19. f4 Bxe4 20. dxe4 e5 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.5"]
[White "Martinez Ramirez, Lennis"]
[Black "Quesada Perez, Yasser"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2452"]
[BlackElo "2538"]
[ECO "D25"]
[Opening "QGA, 4.e3"]
[WhiteFideId "3509079"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 cxd4 6. exd4 g6 7. Ne5 e6 8. Nc3
Bg7 9. Qa4+ Nbd7 10. Qa3 Qe7 11. Qxe7+ Kxe7 12. b3 a6 13. Ba3+ Ke8 14. Be2 Bf8
15. Bxf8 Kxf8 16. Rc1 Kg7 17. a4 b6 18. Bf3 Ra7 19. Nc4 Bb7 20. Ke2 b5 21. Nd6
Bxf3+ 22. Kxf3 e5 23. Rhd1 bxa4 24. bxa4 Rb8 25. Nce4 exd4 26. Rxd4 Rb3+ 27. Rc3
Ne5+ 28. Ke2 Rb2+ 29. Rd2 Nxe4 30. Nxe4 Rb4 31. Nc5 a5 32. Rd5 Ng4 33. h3 Re7+
34. Kf3 Nf6 35. Rd2 Re5 36. g3 Rxc5 37. Rxc5 Ne4 38. Rdd5 Nxc5 39. Rxc5 Rxa4 40.
g4 Ra3+ 41. Kg2 Ra1 42. g5 a4 43. Ra5 h6 44. h4 hxg5 45. hxg5 Kf8 46. Ra7 a3 47.
Kh2 Ke8 48. Kg2 a2 49. Kh2 Kd8 50. Kg2 Kc8 51. Kh2 Kb8 52. Ra3 Kb7 53. Kg2 Kb6
54. Ra8 Kc5 55. Ra7 Kd4 56. Ra6 Ke4 57. Ra7 Ke5 58. Kh2 Kf4 59. Rxf7+ Ke4 60.
Ra7 Kf3 61. Rf7+ Ke2 62. Ra7 Kxf2 63. Ra3 Ke2 64. Kg2 Kd2 65. Kh2 Kc2 66. Ra8
Kc3 67. Kg2 Kd4 68. Ra4+ Ke5 69. Ra5+ Kf4 70. Kh2 Kf3 71. Ra4 Rf1 72. Rxa2 Kg4
73. Ra5 Rf2+ 74. Kg1 Rf5 75. Rxf5 Kxf5 76. Kf2 Kf4 77. Kg2 Kxg5 78. Kg3 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.07"]
[Round "5.6"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Espinosa Veloz, Ermes"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2519"]
[BlackElo "2516"]
[ECO "E62"]
[Opening "King's Indian"]
[Variation "fianchetto, Uhlmann (Szabo) variation"]
[WhiteFideId "3507165"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. d4 O-O 6. Nf3 Nc6 7. O-O e5 8. d5 Nb8
9. c5 Na6 10. cxd6 cxd6 11. Ne1 Bd7 12. Nd3 b5 13. a3 Nc5 14. Nb4 a5 15. Nc6 Qb6
16. Be3 Ng4 17. Bxc5 dxc5 18. Qb3 e4 19. Na4 Qc7 20. Qxb5 Rfe8 21. Qxc5 Rac8 22.
Rac1 Bxc6 23. dxc6 Re6 24. Rfd1 Bf8 25. Qb5 Rf6 26. Qb7 Rxc6 27. Qxc6 Qxc6 28.
Rxc6 Rxc6 29. Bxe4 Rc4 30. Nc3 Bxa3 31. Bd3 Rc8 32. bxa3 Rxc3 33. a4 Kg7 34. Bb5
g5 35. Rd5 f6 36. Rd7+ Kg8 37. Ra7 h5 38. Rxa5 h4 39. gxh4 gxh4 40. h3 Ne5 41.
Kg2 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.1"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Espinosa Veloz, Ermes"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2516"]
[ECO "A15"]
[Opening "English opening"]
[WhiteFideId "3518736"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. Qa4+ Bd7 5. Qb3 dxc4 6. Qxc4 c5 7. g3 Nc6 8.
Bg2 e5 9. O-O h6 10. e3 Rc8 11. Qb3 Be6 12. Qa4 Nd7 13. d4 cxd4 14. exd4 Nb6 15.
Qd1 exd4 16. Ne2 Bg7 17. Nf4 O-O 18. Nxe6 fxe6 19. Ne1 Nd5 20. Nd3 Qd6 21. Bd2
Kh7 22. h4 h5 23. Re1 Bh6 24. Be4 Kg7 25. Bxh6+ Kxh6 26. Qd2+ Kg7 27. Qg5 Rf6
28. Bxd5 exd5 29. Nf4 Rxf4 30. Qxf4 Qxf4 31. gxf4 Rf8 32. Kg2 Rxf4 33. Kg3 Rg4+
34. Kh2 Rf4 35. Kg3 Rg4+ 36. Kh2 Rf4 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.2"]
[White "Quesada Perez, Yasser"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2538"]
[BlackElo "2519"]
[ECO "B23"]
[Opening "Sicilian"]
[Variation "closed"]
[WhiteFideId "3509362"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. d4 cxd4 6. Qxd4 Nc6 7. Qd3 g6 8.
Nf3 Bg7 9. O-O Nf6 10. Nd5 Ng4 11. c3 O-O 12. Bg5 e6 13. Ne3 Nge5 14. Nxe5 Nxe5
15. Qc2 f5 16. f4 Nf7 17. Bh4 Qc6 18. exf5 gxf5 19. Rf3 Nh8 20. Raf1 Ng6 21. Be1
Rf7 22. h4 Kh8 23. h5 Ne7 24. Bh4 Rg8 25. Qd2 Nc8 26. c4 Qe4 27. Kh1 Qd4 28.
R1f2 Qxd2 29. Rxd2 Bf6 30. Bxf6+ 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.3"]
[White "Almeida Quintana, Omar"]
[Black "Martinez Ramirez, Lennis"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2550"]
[BlackElo "2452"]
[ECO "D11"]
[Opening "QGD Slav"]
[Variation "4.e3"]
[WhiteFideId "3503313"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 Bg4 5. Nbd2 e6 6. h3 Bh5 7. g4 Bg6 8. Ne5
Nbd7 9. Nxg6 hxg6 10. Bg2 Bd6 11. Qc2 Qa5 12. a3 e5 13. g5 Ne4 14. c5 Bb8 15. b4
Qd8 16. Nxe4 dxe4 17. Bxe4 exd4 18. exd4 Rh4 19. Kf1 Qe7 20. Bg2 Rxd4 21. Bb2
Rh4 22. Re1 Be5 23. Bxe5 Nxe5 24. Qc3 f6 25. Qg3 Rc4 26. f4 O-O-O 27. fxe5 fxg5
28. Rh2 g4 29. hxg4 Qg5 30. Kg1 Qd2 31. Bf1 Rc3 32. Rxd2 Rxg3+ 33. Kf2 Rxa3 34.
Rxd8+ Kxd8 35. Re4 Rb3 36. Rf4 g5 37. Rd4+ Ke7 38. Be2 Ke6 39. Re4 Ke7 40. e6
Ra3 41. Bc4 Ra4 42. Bb3 Ra3 43. Re3 b5 44. Rd3 a5 45. bxa5 b4 46. Ke3 Rxa5 47.
Kd4 Ra1 48. Rf3 Rg1 49. Rf7+ Ke8 50. Rxg7 Rxg4+ 51. Ke5 Rg3 52. e7 Kd7 53. Be6+
Ke8 54. Kf6 Rf3+ 55. Bf5 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.4"]
[White "Fernandez Cardoso, Alexey"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2437"]
[BlackElo "2513"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]
[WhiteFideId "3504379"]
[BlackFideId "3520773"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. O-O Nc6 7. c3 cxd4 8. Nxd4
Nge7 9. Qb3 Qd7 10. f4 Nxd4 11. cxd4 Nc6 12. Be3 h5 13. Nc3 Be7 14. Rac1 g6 15.
Na4 Na5 16. Qd1 Rc8 17. Nc5 Bxc5 18. dxc5 Nc6 19. Qd2 d4 20. Rfd1 Rd8 21. Bf2 d3
22. Bf3 g5 23. Rc4 gxf4 24. Qxf4 Rg8 25. Bxh5 Qc7 26. Bh4 Nxe5 27. Bxd8 Qc6 28.
Bg5 Rxg5 29. Qxg5 Nxc4 30. Qg8+ Kd7 31. Qxf7+ Kc8 32. Qf8+ Kc7 33. Qe7+ Kc8 34.
Bf3 Qd7 35. Qxd7+ Kxd7 36. b3 Ne3 37. Rd2 Ke7 38. Kf2 Nc2 39. g4 Bh7 40. Bxb7 e5
41. Kf3 Ne1+ 42. Ke3 Nc2+ 43. Rxc2 dxc2 44. Kd2 Bd3 45. g5 e4 46. Kc1 Ke6 47.
Bc8+ Ke5 48. Bg4 e3 49. h4 a5 50. a3 Kd5 51. b4 axb4 52. axb4 Kc6 53. Bf3+ Kb5
54. h5 e2 55. Bxe2 Bxe2 56. Kxc2 Bxh5 57. Kc3 Kc6 58. Kd4 Bf7 59. Ke5 Bc4 60. g6
Kd7 61. Kf6 Ke8 62. g7 Kd7 63. b5 Bg8 64. b6 Bd5 65. b7 Kc7 66. c6 Bc4 67. Ke7
Bb3 68. Kf8 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.5"]
[White "Gonzalez Vidal, Yuri"]
[Black "Hernandez Gonzalez, William"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2565"]
[BlackElo "2445"]
[ECO "B31"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (with ...g6, without ...d6)"]
[WhiteFideId "3503321"]
[BlackFideId "3509915"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8.
Nbd2 Nf6 9. Nc4 Nd7 10. Bd2 b6 11. Qc1 h6 12. a3 Ba6 13. a4 Bxc4 14. dxc4 a5 15.
Ra3 Qe6 16. Rc3 O-O-O 17. b3 f5 18. Rd3 f4 19. Bc3 Nb8 20. Red1 Rxd3 21. Rxd3 g5
22. Qd1 Kc7 23. h3 Bf6 24. Nh2 h5 25. Be1 Nd7 26. f3 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.08"]
[Round "6.6"]
[White "Garcia Pantoja, Roberto"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2514"]
[BlackElo "2547"]
[ECO "B36"]
[Opening "Sicilian"]
[Variation "accelerated fianchetto, Maroczy bind"]
[WhiteFideId "3509265"]
[BlackFideId "3504727"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8.
Qxd4 Bg7 9. Be3 O-O 10. Qd2 a5 11. O-O a4 12. Bd4 Qa5 13. Rad1 Be6 14. f4 Rfc8
15. b3 b5 16. f5 b4 17. fxe6 bxc3 18. exf7+ Kf8 19. Bxc3 Qc5+ 20. Kh1 Nxe4 21.
Bxg7+ Kxg7 22. Qb2+ Nf6 23. Bg4 Rcb8 24. Be6 axb3 25. axb3 Qe3 26. f8=B+ Rxf8
27. Rde1 Qg5 28. b4 Kh6 29. Rf3 Nh5 30. Bd5 Rac8 31. b5 Rxf3 32. Bxf3 Rxc4 33.
b6 Rh4 34. g4 Rh3 35. b7 Qh4 36. Qd2+ Kg7 37. Rxe7+ Qxe7 38. b8=Q Rxf3 39. gxh5
Qe4 40. h6+ Kf7 41. Qa7+ Ke8 42. Qb8+ Kf7 43. Qc7+ Ke8 44. Kg1 Qg4+ 45. Qg2 Qd4+
46. Kh1 Qa1+ 47. Qg1 Qa8 48. Qca7 Qc6 49. Qab6 Qa8 50. Qa7 Qc6 51. Qb8+ Kd7 52.
Qbb6 Qd5 53. Qa7+ Ke8 54. Qb8+ Kf7 55. Qga7+ Kf6 56. Qd8+ Kf5 57. Qad7+ Ke5 58.
Q7e7+ Kd4 59. Qb6+ Kd3 60. Qb1+ Kd4 61. Qb4+ Kd3 62. Qa3+ Kd2 63. Qb2+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.1"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2547"]
[BlackElo "2577"]
[ECO "D39"]
[Opening "QGD"]
[Variation "Ragozin, Vienna variation"]
[WhiteFideId "3504727"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 Nf6 2. c4 e6 3. d4 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8.
Nxd4 Bxc3+ 9. bxc3 Qa5 10. Bb5+ Nbd7 11. Bxf6 Qxc3+ 12. Kf1 gxf6 13. h4 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.2"]
[White "Hernandez Gonzalez, William"]
[Black "Garcia Pantoja, Roberto"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2445"]
[BlackElo "2514"]
[ECO "B97"]
[Opening "Sicilian"]
[Variation "Najdorf, 7...Qb6"]
[WhiteFideId "3509915"]
[BlackFideId "3509265"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3
Nbd7 9. Qf3 Qc7 10. O-O-O b5 11. Bd3 Bb7 12. a3 Be7 13. Bh4 Nc5 14. Kb1 O-O 15.
Bf2 Nxb3 16. cxb3 b4 17. axb4 Bc6 18. g4 Rfb8 19. f5 exf5 20. gxf5 Rxb4 21. Bc4
a5 22. Rhg1 a4 23. Qg2 Bf8 24. Bd4 axb3 25. Bxf6 Rxc4 26. Bxg7 Bxe4+ 27. Qxe4
Rxe4 28. Bf6+ Bg7 29. Rxg7+ Kf8 30. Rdg1 Re1+ 31. Rxe1 Qa7 32. Kc1 Qf2 33. Re2
Qf4+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.3"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2513"]
[BlackElo "2565"]
[ECO "A13"]
[Opening "English"]
[Variation "Neo-Catalan accepted"]
[WhiteFideId "3520773"]
[BlackFideId "3503321"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 e6 2. g3 d5 3. Nf3 Nf6 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 c5 7. Ne5 Qc8 8.
O-O Nc6 9. Nxd7 Qxd7 10. Nc3 Rc8 11. Qa4 Be7 12. d3 O-O 13. Bd2 Rfd8 14. Rfc1 c4
15. Be3 cxd3 16. Rd1 Qc7 17. exd3 a6 18. Rac1 Nd7 19. d4 Nb6 20. Qc2 Nd5 21.
Nxd5 exd5 22. Qf5 g6 23. Qf3 Qd7 24. h4 h5 25. Kh2 f5 26. Qe2 Kg7 27. Rc3 Bf6
28. Rc5 Ne7 29. b4 Rc6 30. Rxc6 Nxc6 31. b5 axb5 32. Qxb5 Ne7 33. Qb3 Nc6 34.
Rb1 Nxd4 35. Qxb7 Qf7 36. Qxf7+ Kxf7 37. Rd1 Nc2 38. Bxd5+ Kg7 39. Bc5 Rc8 40.
Bb6 Rb8 41. Ba7 Re8 42. Bb3 Re7 43. Bc5 Rc7 44. Bb6 Rb7 45. Rd6 Be5 46. Bd5 Bxd6
47. Bxb7 Na3 48. Bd4+ Kf8 49. Kg2 Ke7 50. Ba6 Nc2 51. Bc3 Bc5 52. a4 Nd4 53. Bc4
Kf6 54. Bd2 Ke7 55. a5 Ke8 56. Bf4 Ke7 57. Bc7 Kd7 58. Bb6 Bxb6 59. axb6 Kc6 60.
Bf7 Kxb6 61. Bxg6 Kc6 62. Bxh5 Kd6 63. Bf7 Ke5 64. Bc4 Kf6 65. Bd3 Nc6 66. Bc2
Nd4 67. Bb1 Nc6 68. Kf3 Ne5+ 69. Ke3 Ng6 70. Kd4 Ne5 71. f4 Ng4 72. Bd3 Nf2 73.
Ke3 Ng4+ 74. Ke2 Nh2 75. Bc4 Ng4 76. Bd5 Nh6 77. Kd3 Ng4 78. Bf3 Nh6 79. Kd4 Nf7
80. Kc5 Nh6 81. Kd6 Nf7+ 82. Kd7 Nh6 83. Ke8 Nf7 84. Kf8 Nh6 85. Bh5 Nf7 86. g4 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.4"]
[White "Martinez Ramirez, Lennis"]
[Black "Fernandez Cardoso, Alexey"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2452"]
[BlackElo "2437"]
[ECO "B43"]
[Opening "Sicilian"]
[Variation "Kan, 5.Nc3"]
[WhiteFideId "3509079"]
[BlackFideId "3504379"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Bb7 7. O-O Qc7 8. a4
b4 9. Na2 Nf6 10. Qe2 Nc6 11. Nxc6 Qxc6 12. Re1 d5 13. e5 Ne4 14. Be3 Qxa4 15.
c3 bxc3 16. Nxc3 Nxc3 17. bxc3 Qc6 18. Reb1 Be7 19. Rb6 Qc7 20. Bb5+ Kf8 21.
Bxa6 g5 22. Qh5 Bxa6 23. Rbxa6 Rxa6 24. Rxa6 Qxc3 25. Qh6+ Ke8 26. Ra8+ Kd7 27.
Ra7+ Kc6 28. h4 Rb8 29. Qxh7 Bc5 30. Bxc5 Qe1+ 31. Kh2 Qxe5+ 32. g3 gxh4 33.
Ra6+ Kxc5 34. Qc2+ Kb4 35. Qa4+ Kc3 36. Rc6+ Kd2 37. Qc2+ Ke1 38. Qc1+ Kxf2 39.
Rc2+ Kf3 40. Qd1+ Ke4 41. Re2+ Kf5 42. Qf1+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.5"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2519"]
[BlackElo "2550"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, dragon formation"]
[WhiteFideId "3507165"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. Bxd7+
Qxd7 9. d5 dxe5 10. h3 e4 11. hxg4 exf3 12. Qxf3 Na6 13. Bd2 O-O-O 14. O-O-O f5
15. gxf5 gxf5 16. Be1 Nc7 17. Bh4 Qd6 18. Rhe1 Rhe8 19. g3 Rd7 20. Nb1 Nxd5 21.
Na3 Qc6 22. Nc4 e6 23. Qh5 Rf8 24. Qe2 Qa6 25. a3 Bd4 26. Rd2 Kc7 27. Ne5 Qxe2
28. Rdxe2 Bxe5 29. Rxe5 Rd6 30. c4 Nf6 31. Rxe6 Ne4 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.09"]
[Round "7.6"]
[White "Espinosa Veloz, Ermes"]
[Black "Quesada Perez, Yasser"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2516"]
[BlackElo "2538"]
[ECO "D20"]
[Opening "QGA"]
[Variation "3.e4"]
[WhiteFideId "3507424"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Bf5 6. Ne2 e6 7. Nbc3 Nb6 8. Bb3
Nc6 9. O-O Qd7 10. Be3 O-O-O 11. Rc1 Kb8 12. Na4 f6 13. Nxb6 axb6 14. Ba4 fxe5
15. Bb5 Qd5 16. Nc3 Qd6 17. Bxc6 bxc6 18. dxe5 Qxd1 19. Rfxd1 Be7 20. f3 c5 21.
Kf2 Rxd1 22. Rxd1 Rd8 23. Rxd8+ Bxd8 24. Ne2 Bb1 25. Nc3 Bg6 26. Ne2 Kc8 27. g3
Kd7 28. h4 c6 29. Nf4 Bf7 30. Bd2 Bc7 31. Bc3 c4 32. g4 b5 33. Bd4 c5 34. Bxc5
Bxe5 35. Ne2 Bxb2 36. Bd4 Bxd4+ 37. Nxd4 b4 38. Ke3 e5 39. Ne2 Bg6 40. Nc1 Bb1
41. f4 exf4+ 42. Kxf4 Kd6 43. g5 Kd5 44. Ke3 g6 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.1"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Quesada Perez, Yasser"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2538"]
[ECO "A13"]
[Opening "English opening"]
[Variation "Agincourt variation"]
[WhiteFideId "3518736"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 d5 2. c4 e6 3. d4 a6 4. cxd5 exd5 5. Nc3 Nf6 6. Bg5 Be6 7. e3 Nbd7 8. Bd3
Bd6 9. O-O c6 10. Bf4 Qb8 11. Bxd6 Qxd6 12. h3 O-O 13. Qc2 a5 14. Ne2 Rfe8 15.
Nf4 Ne4 16. Bxe4 dxe4 17. Nd2 Nf6 18. Rfc1 a4 19. Nxe4 Nxe4 20. Qxe4 Bxh3 21.
Qd3 Bd7 22. Qa3 Qf6 23. Qb4 Reb8 24. Qb6 Ra6 25. Qc7 Qd8 26. Qe5 g6 27. Rc5 b6
28. Rc4 Ra5 29. Qd6 h5 30. Rac1 Be8 31. Qa3 Rba8 32. e4 Qg5 33. Qf3 Bd7 34. d5
Bg4 35. Qe3 cxd5 36. exd5 Rb5 37. Rc7 Rd8 38. Qd4 Bd7 39. Re1 Kh7 40. Re5 Rb4
41. Qxb4 Qxe5 42. Rb7 b5 43. g3 h4 44. Ne6 Bxe6 45. Qxh4+ Kg7 46. dxe6 Qe1+ 47.
Kg2 Qxe6 48. Rxf7+ Qxf7 49. Qxd8 Qxa2 50. Qd4+ Kh7 51. Qh4+ Kg7 52. Qe7+ Kh6 53.
Qh4+ Kg7 54. Qd4+ Kh7 55. Qd7+ Kh6 56. Qxb5 a3 57. bxa3 Qxa3 58. Qd7 Qa8+ 59. f3
Qa2+ 60. Kh3 Qe2 61. Qd5 Qe7 62. Kg4 Kh7 63. Qg5 Qd7+ 64. Kh4 Qb7 65. Qf6 Qd7
66. g4 Qc7 67. f4 Qb7 68. Qe5 Qh1+ 69. Kg5 Qh6+ 70. Kf6 Qf8+ 71. Ke6 Qe8+ 72.
Kd6 Qd8+ 73. Kc6 Kh6 74. g5+ Kh5 75. Qd6 Qc8+ 76. Kd5 Qf5+ 77. Kd4 Qf7 78. Ke3
Qb3+ 79. Qd3 Qe6+ 80. Kf2 Qb6+ 81. Qe3 Qb2+ 82. Kg3 Qb3 83. Qf3+ 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.2"]
[White "Almeida Quintana, Omar"]
[Black "Espinosa Veloz, Ermes"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2550"]
[BlackElo "2516"]
[ECO "D85"]
[Opening "Gruenfeld"]
[Variation "exchange variation"]
[WhiteFideId "3503313"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8.
Bc4 c5 9. d5 Bxc3+ 10. bxc3 Qd6 11. Ne2 f5 12. exf5 Bxf5 13. O-O Nd7 14. Ng3 Nb6
15. Qe2 Qf4 16. Bb3 c4 17. Bc2 Bxc2 18. Qxc2 Nxd5 19. Rad1 Rad8 20. Rd4 Qc7 21.
Qe2 Qc6 22. Rxc4 Nxc3 23. Qg4 Qf6 24. Rc7 Rd4 25. Qf3 Qxf3 26. gxf3 Nd5 27. Rxb7
Ra4 28. Rd1 e6 29. Rd2 Rxf3 30. Re2 Rc3 31. h3 Rc7 32. Rb8+ Kg7 33. Kh2 Nc3 34.
Rxe6 Rxa2 35. Kg1 Rf7 36. Ra8 Raxf2 37. Ra6 Ra2 38. Rxa2 Nxa2 39. Ne4 Nb4 40.
Nd6 Rd7 41. Ne4 Nd5 42. Nc5 Re7 43. Kf2 Kh6 44. Rd8 Nf4 45. Kg3 Nh5+ 46. Kf3
Rf7+ 47. Kg2 Rc7 48. Nd3 a5 49. Kf3 Ra7 50. h4 a4 51. Ne5 a3 52. Rd1 a2 53. Ra1
Nf6 54. Nd3 Ra3 55. Ke2 Nd5 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.3"]
[White "Fernandez Cardoso, Alexey"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2437"]
[BlackElo "2519"]
[ECO "B87"]
[Opening "Sicilian"]
[Variation "Sozin with ...a6 and ...b5"]
[WhiteFideId "3504379"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O
Be7 9. Qf3 Qb6 10. Be3 Qb7 11. Qg3 O-O 12. Bh6 Ne8 13. Rad1 Bf6 14. Kh1 b4 15.
Na4 Qxe4 16. Nb6 Bxd4 17. Nxc8 Nc6 18. c3 bxc3 19. bxc3 Rxc8 20. cxd4 Nxd4 21.
Bg5 Nxb3 22. axb3 f6 23. Bc1 Qc2 24. Qe3 e5 25. Ba3 Rc3 26. Qa7 Rd3 27. Ra1 Qxb3
28. Qxa6 Qd5 29. Qc8 f5 30. f3 f4 31. Bb4 Nf6 32. Qc7 Rd4 33. Ra7 Ne8 34. Qb6
Rd1 35. Ra1 Rxf1+ 36. Rxf1 h6 37. h3 Kh7 38. Rf2 Rf6 39. Qd8 Qb5 40. Ba3 Qa4 41.
Bb2 Rg6 42. Rd2 Qb4 43. Bc1 Qc4 44. Bb2 Nf6 45. Kh2 Qf1 46. Qc8 Nd5 47. Qc1 Ne3 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.4"]
[White "Gonzalez Vidal, Yuri"]
[Black "Martinez Ramirez, Lennis"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2565"]
[BlackElo "2452"]
[ECO "A15"]
[Opening "English opening"]
[WhiteFideId "3503321"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 dxc4 5. O-O Nbd7 6. Na3 Nb6 7. Qc2 Qd5 8. b3
cxb3 9. axb3 Qh5 10. h4 Bg4 11. Bb2 Qf5 12. d3 Bh3 13. Nc4 Nxc4 14. bxc4 Bxg2
15. Kxg2 g6 16. Bd4 Bg7 17. Rfb1 Qc8 18. Rxa7 Rxa7 19. Bxa7 O-O 20. Qb3 b5 21.
cxb5 cxb5 22. Bd4 Qg4 23. Qxb5 Rd8 24. Qc4 Rc8 25. Qa2 e6 26. Qa6 Rf8 27. Qa1
Nh5 28. Bxg7 Nxg7 29. Qe5 Nf5 30. e4 Ng7 31. Rb8 Nh5 32. Ng5 Nf4+ 33. Qxf4 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.5"]
[White "Garcia Pantoja, Roberto"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2514"]
[BlackElo "2513"]
[ECO "C10"]
[Opening "French"]
[Variation "Rubinstein variation"]
[WhiteFideId "3509265"]
[BlackFideId "3520773"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Be3 Nd5
8. Bg5 Be7 9. Bxe7 Qxe7 10. c3 O-O 11. Bd3 c5 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.10"]
[Round "8.6"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Hernandez Gonzalez, William"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2547"]
[BlackElo "2445"]
[ECO "B50"]
[Opening "Sicilian"]
[WhiteFideId "3504727"]
[BlackFideId "3509915"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O e5 7. Nc3 Nge7 8. Nh4
O-O 9. f4 exf4 10. Bxf4 Nd4 11. Qd2 Be6 12. Rf2 Nec6 13. Bh6 Ne5 14. h3 Qd7 15.
Bxg7 Kxg7 16. Kh2 f6 17. Raf1 Rae8 18. Nd5 Bxd5 19. exd5 Nb5 20. b3 Nc7 21. c3
Qd8 22. c4 b6 23. Bh1 f5 24. Ng2 h5 25. Nh4 Rf7 26. Bg2 Ref8 27. d4 cxd4 28.
Qxd4 Qf6 29. Kh1 Kg8 30. Qd2 Na6 31. Be4 Nc5 32. Bb1 Qe7 33. Qh6 Qf6 34. Re2
Ncd7 35. Nf3 Rh7 36. Qf4 Re7 37. Ng5 Nc5 38. Re3 Nf7 39. Rxe7 Qxe7 40. Nf3 Nd7
41. Nd4 Nde5 42. Ne6 Re8 43. Bc2 Nd8 44. Nd4 Qf6 45. Re1 Re7 46. Re3 Nef7 47.
Kg2 Rxe3 48. Qxe3 Ne5 49. Qf4 Qe7 50. Kf1 Ndf7 51. Ne6 Qf6 52. Ke2 Qe7 53. Ke3
Qb7 54. Qh4 Kh7 55. Qf6 Nh6 56. Qd8 Ng8 57. Qxd6 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.1"]
[White "Hernandez Gonzalez, William"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2445"]
[BlackElo "2577"]
[ECO "B30"]
[Opening "Sicilian"]
[Variation "Nimzovich-Rossolimo attack (without ...d6)"]
[WhiteFideId "3509915"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. d4 cxd4 5. Qxd4 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8.
Bg5 e6 9. O-O-O Be7 10. Qd3 Qa5 11. h4 h6 12. Bd2 Qa6 13. Nd4 Qxd3 14. cxd3 Ng4
15. Be1 Bd7 16. f3 Ne5 17. Bg3 h5 18. Kb1 O-O 19. Nc2 b5 20. Ne3 b4 21. Ne2 Bb5
22. Nf4 g6 23. Bf2 Rfc8 24. b3 a5 25. Nc4 Ra6 26. Bd4 Nd7 27. Bb2 a4 28. g4 hxg4
29. fxg4 axb3 30. axb3 Bf6 31. g5 Bxb2 32. Kxb2 Nc5 33. Ra1 Rca8 34. Nxd6 Rxa1
35. Rxa1 Rxa1 36. Kxa1 Nxb3+ 37. Kb2 Ba4 38. Nc4 Nd4 39. Ne5 Bd1 40. Ng2 Kg7 41.
Ne3 Ba4 42. N3g4 Ne2 43. Nf3 Nf4 44. Ne1 Kf8 45. e5 Ne2 46. Ne3 Nd4 47. Nc4 Ke7
48. Nd6 Nf5 49. Ne4 Nd4 50. Nc5 Bd1 51. Kc1 Bf3 52. Na6 b3 53. Kb2 Bd5 54. Nc5
Kd8 55. Ne4 Ke7 56. Kc3 Nf5 57. Nd2 Nxh4 58. Nxb3 Nf5 59. Nc5 Ne3 60. Kd4 Nf5+
61. Kc3 Ng3 62. Kd2 Kd8 63. Nc2 Nf5 64. Ne4 Kc7 65. Nf6 Kc6 66. Ng4 Kd7 67. Nh6
Nh4 68. Ne1 Ke7 69. Ke3 Kf8 70. Kf4 Kg7 71. Kg3 Nf5+ 72. Nxf5+ gxf5 73. Kf4 Kg6
74. Nc2 Kg7 75. Nb4 Bb7 76. d4 Kg6 77. Nd3 Be4 78. Nc5 Bc6 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.2"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2513"]
[BlackElo "2547"]
[ECO "A10"]
[Opening "English opening"]
[WhiteFideId "3520773"]
[BlackFideId "3504727"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 Ne7 5. d3 c6 6. e4 d6 7. Nge2 Be6 8. O-O a6
9. a4 a5 10. b3 Na6 11. d4 O-O 12. Bg5 exd4 13. Nxd4 Nc5 14. Rb1 Re8 15. Be3 Qd7
16. Qc2 Bh3 17. Rfd1 Bxg2 18. Kxg2 Qc7 19. h4 Nc8 20. h5 Qe7 21. hxg6 hxg6 22.
f3 Nb6 23. Nde2 Rad8 24. Rd2 d5 25. cxd5 cxd5 26. Nxd5 Rxd5 27. Rxd5 Nxd5 28.
Bxc5 Rc8 29. exd5 Qxc5 30. Qd3 Re8 31. Rd1 Re3 32. Qd2 Rxb3 33. d6 Rb2 34. Qd3
Bf6 35. Rd2 Rxd2 36. Qxd2 Qb4 37. Qd1 Kf8 38. d7 Bd8 39. Nf4 g5 40. Qe2 Qe7 41.
Qb2 Qxd7 42. Qh8+ Ke7 43. Qe5+ 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.3"]
[White "Martinez Ramirez, Lennis"]
[Black "Garcia Pantoja, Roberto"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2452"]
[BlackElo "2514"]
[ECO "A25"]
[Opening "English"]
[Variation "Sicilian reversed"]
[WhiteFideId "3509079"]
[BlackFideId "3509265"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 a6 5. a3 d6 6. e3 Ba7 7. Nge2 h5 8. h4 Nge7
9. b4 Bg4 10. Rb1 O-O 11. Bb2 Qd7 12. Ba1 Rab8 13. a4 a5 14. bxa5 Nxa5 15. d3
Nac6 16. Rb5 Bb6 17. O-O Bh3 18. Bxh3 Qxh3 19. Ne4 Rbd8 20. N2c3 Qf5 21. Kg2 Qg6
22. Nd5 Nxd5 23. cxd5 Na7 24. Rb3 Ra8 25. Ng5 Nc8 26. Rb4 Ne7 27. Qf3 Qxd3 28.
Qxh5 Nxd5 29. e4 Nf6 30. Qd1 Qxd1 31. Rxd1 Ra7 32. Rxb6 cxb6 33. Rxd6 Rxa4 34.
Bxe5 Ne8 35. Rxb6 f6 36. Ne6 fxe5 37. Nxf8 Kxf8 38. Kf3 Nf6 39. Rxb7 Rxe4 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.4"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2519"]
[BlackElo "2565"]
[ECO "A05"]
[Opening "Reti opening"]
[WhiteFideId "3507165"]
[BlackFideId "3503321"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O c5 5. c4 dxc4 6. Qa4+ Bd7 7. Qxc4 Bc6 8.
Nc3 Nbd7 9. e4 b5 10. Nxb5 Bxe4 11. Nc3 Bb7 12. d4 Rc8 13. Bg5 Be7 14. Rfd1 O-O
15. Qb3 Rb8 16. Qc2 Nd5 17. Nxd5 Bxd5 18. Bf4 Rc8 19. Qa4 cxd4 20. Nxd4 Rc4 21.
Qa6 Qb6 22. Qxb6 Nxb6 23. b3 Rc5 24. Rac1 Rfc8 25. Bf1 a5 26. Rxc5 Bxc5 27. Be3
a4 28. Rb1 axb3 29. axb3 Nd7 30. b4 Rb8 31. b5 Ne5 32. Bg2 Bxd4 33. Bxd4 Nf3+
34. Bxf3 Bxf3 35. b6 f6 36. Bc5 Bb7 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.5"]
[White "Espinosa Veloz, Ermes"]
[Black "Fernandez Cardoso, Alexey"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2516"]
[BlackElo "2437"]
[ECO "E98"]
[Opening "King's Indian"]
[Variation "orthodox, Aronin-Taimanov, 9.Ne1"]
[WhiteFideId "3507424"]
[BlackFideId "3504379"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7
9. Ne1 Nd7 10. Nd3 f5 11. f3 f4 12. b4 g5 13. c5 Nf6 14. a4 h5 15. Nf2 Rf7 16.
a5 Bf8 17. c6 Rg7 18. cxb7 Bxb7 19. b5 Bc8 20. h3 Ng6 21. Na2 g4 22. fxg4 hxg4
23. hxg4 Nh4 24. Nb4 Nh5 25. gxh5 Rxg2+ 26. Kh1 Rg3 27. Rg1 Nf3 28. Rxg3+ fxg3
29. Kg2 Qh4 30. Kxf3 gxf2 31. Qf1 Bg4+ 32. Ke3 Bh6+ 33. Kd3 Bxe2+ 34. Qxe2 Qh3+
35. Be3 Rf8 36. Kd2 Bxe3+ 37. Qxe3 Qxe3+ 38. Kxe3 f1=Q 39. Rxf1 Rxf1 40. Nc6 Ra1
41. a6 Kg7 42. Nxa7 Kh6 43. Nc6 Kxh5 44. Kd3 Kg5 45. Nd8 Ra3+ 46. Kc4 Kf6 47.
Ne6 c6 48. dxc6 Kxe6 49. b6 Rxa6 50. Kb5 Ra1 51. b7 Rb1+ 52. Ka6 d5 53. c7 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.11"]
[Round "9.6"]
[White "Quesada Perez, Yasser"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2538"]
[BlackElo "2550"]
[ECO "B06"]
[Opening "Robatsch (modern) defence"]
[WhiteFideId "3509362"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Nbd2 O-O 6. Bb3 Nc6 7. c3 e5 8. dxe5
Nxe5 9. Nxe5 dxe5 10. O-O Qe7 11. Qe2 Be6 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.1"]
[White "Albornoz Cabrera, Carlos Daniel"]
[Black "Almeida Quintana, Omar"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2577"]
[BlackElo "2550"]
[ECO "B09"]
[Opening "Pirc"]
[Variation "Austrian attack, dragon formation"]
[WhiteFideId "3518736"]
[BlackFideId "3503313"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. dxc5 Qa5 7. Qe2 Qxc5 8. Be3
Qa5 9. Qb5+ Qxb5 10. Bxb5+ Bd7 11. Bxd7+ Nbxd7 12. O-O-O Nb6 13. h3 Nfd7 14. Bd4
O-O 15. Bxg7 Kxg7 16. g4 Rac8 17. g5 Rc5 18. h4 h5 19. Nd4 Rfc8 20. f5 Re5 21.
Rhf1 Rc4 22. Rf4 a6 23. Nce2 Rc8 24. Rdf1 d5 25. Ng3 dxe4 26. Rxe4 Rxe4 27. Nxe4
Nd5 28. fxg6 Kxg6 29. c3 Nc5 30. Nxc5 Rxc5 31. Re1 e6 32. Kd2 Nf4 33. Rf1 e5 34.
Ne2 Rd5+ 35. Ke3 Rd3+ 36. Ke4 Rd2 37. Nxf4+ exf4 38. b4 Rxa2 39. Rxf4 a5 40.
bxa5 Ra4+ 41. Ke3 Rxa5 42. Rf6+ Kg7 43. Rh6 Ra3 44. Kd2 b5 45. Kc2 Ra4 46. Rxh5
b4 47. Rh6 bxc3 48. Kxc3 f6 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.2"]
[White "Fernandez Cardoso, Alexey"]
[Black "Quesada Perez, Yasser"]
[Result "1-0"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2437"]
[BlackElo "2538"]
[ECO "C70"]
[Opening "Ruy Lopez"]
[Variation "Caro variation"]
[WhiteFideId "3504379"]
[BlackFideId "3509362"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5 5. Bb3 g6 6. c3 Bg7 7. a4 b4 8. d4 exd4
9. cxd4 Nge7 10. a5 d5 11. exd5 Nxd5 12. Bg5 f6 13. Qe2+ Nce7 14. Bd2 Rb8 15.
Bc4 Qd6 16. O-O Bb7 17. Re1 Kf8 18. Qd3 Nf5 19. Qb3 g5 20. Bd3 Nfe7 21. Bxg5
fxg5 22. Nxg5 Bh6 23. Ne6+ Kf7 24. Nc5 Bc8 25. Ne4 Qc6 26. Nbd2 Bxd2 27. Nxd2
Kg7 28. Re5 Bb7 29. Be4 Qd7 30. Qg3+ Ng6 31. h4 Rhe8 32. Nf3 Nf4 33. Re1 Bxe4
34. R1xe4 Rxe5 35. Nxe5 Qf5 36. Nxg6 Nxg6 37. Qxc7+ Kh6 38. Qc1+ Kg7 39. Qc7+
Kh6 40. Qc1+ Kg7 41. Qc7+ Kh6 42. f3 Rc8 43. Qg3 Rc1+ 44. Kh2 Rc2 45. Rg4 b3 46.
f4 Rc3 47. Rxg6+ hxg6 48. Qxc3 Qxf4+ 49. Kg1 Qxh4 50. d5 Qa4 51. d6 Qa1+ 52. Kh2
Qd1 53. Qe3+ g5 54. Qe6+ Kg7 55. Qe7+ Kg6 56. Qe6+ Kg7 57. d7 Qh5+ 58. Kg3 Qh4+
59. Kf3 Qh5+ 60. Ke3 Qd1 61. Qe7+ Kg6 62. d8=Q 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.3"]
[White "Gonzalez Vidal, Yuri"]
[Black "Espinosa Veloz, Ermes"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2565"]
[BlackElo "2516"]
[ECO "C50"]
[Opening "Giuoco Pianissimo"]
[Variation "Italian four knights variation"]
[WhiteFideId "3503321"]
[BlackFideId "3507424"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 h6 6. Nd5 d6 7. c3 Nxd5 8. Bxd5
Qf6 9. h3 Ne7 10. Bb3 Ng6 11. O-O O-O 12. d4 Bb6 13. Be3 Nf4 14. Kh2 Re8 15. Bc2
Be6 16. Ng1 Bc4 17. Re1 exd4 18. Bxd4 Bxd4 19. cxd4 c5 20. Nf3 cxd4 21. Qxd4
Qxd4 22. Nxd4 Bd3 23. Rad1 Bxc2 24. Nxc2 Rac8 25. Nd4 Ne6 26. Re2 Nxd4 27. Rxd4
Rc6 28. Red2 Kf8 29. Kg3 Ke7 30. f4 Rec8 31. Kf3 Rb6 32. Ra4 a6 33. Rad4 Rc1 34.
b3 Rc3+ 35. Ke2 g5 36. fxg5 hxg5 37. Rd5 f6 38. R2d3 Rc2+ 39. Rd2 Rc3 40. R2d3
Rc2+ 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.4"]
[White "Garcia Pantoja, Roberto"]
[Black "Ortiz Suarez, Isan Reynaldo"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2514"]
[BlackElo "2519"]
[ECO "B96"]
[Opening "Sicilian"]
[Variation "Najdorf, 7.f4"]
[WhiteFideId "3509265"]
[BlackFideId "3507165"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4
Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Bxf6 gxf6 12. Be2 Be7 13. f5 h5 14. fxe6 fxe6
15. Bc4 Qc5 16. Bxe6 Nc6 17. Bxc8 Nxd4 18. Bxb7 Rb8 19. Bd5 Rxb1+ 20. Nxb1 Nxc2+
21. Ke2 Kd7 22. Rd1 Rc8 23. Bb3 f5 24. Qd3 Bh4 25. g3 Bf6 26. Nd2 Nd4+ 27. Kf1
Nxb3 28. Nxb3 Qc6 29. Re1 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.5"]
[White "Martinez Duany, Lelys Stanley"]
[Black "Martinez Ramirez, Lennis"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2547"]
[BlackElo "2452"]
[ECO "D02"]
[Opening "Queen's pawn game"]
[WhiteFideId "3504727"]
[BlackFideId "3509079"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Qb3 g6 5. Nc3 Bg7 6. Bf4 dxc4 7. Qxc4 b5 8. Qb3
Be6 9. Qc2 b4 10. Na4 Bf5 11. Qc1 O-O 12. e3 Nbd7 13. Nc5 Nxc5 14. Qxc5 Ne4 15.
Qxc6 Rc8 16. Qa4 e5 17. Bxe5 Bxe5 18. Nxe5 Qh4 19. Nd3 Nxf2 20. Nxf2 Rfe8 21.
Be2 Rxe3 22. O-O Rxe2 23. Qxa7 Rcc2 24. d5 Be4 25. Qb8+ Kg7 26. Qe5+ Kh6 27. g3
Qh5 28. Qxh5+ Kxh5 29. Rad1 Bf5 30. d6 Bd7 31. Rd4 g5 32. Rxb4 Bh3 33. Rb3 Bxf1
34. g4+ Kh4 35. d7 Re1 36. Re3 Rxe3 37. d8=Q Re1 38. Qa5 Ra1 39. Qd8 Bd3+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.12"]
[Round "10.6"]
[White "Hernandez Gonzalez, William"]
[Black "Quesada Perez, Luis Ernesto"]
[Result "0-1"]
[WhiteTitle "IM"]
[BlackTitle "GM"]
[WhiteElo "2445"]
[BlackElo "2513"]
[ECO "B51"]
[Opening "Sicilian"]
[Variation "Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack"]
[WhiteFideId "3509915"]
[BlackFideId "3520773"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. Nc3 e5 8.
Qb4 Bc6 9. O-O Qc7 10. Qb3 Nf6 11. Re1 h6 12. a4 Be7 13. Nd2 Bd7 14. Nd1 O-O 15.
a5 Qc6 16. c4 Bd8 17. Qd3 b6 18. axb6 Bxb6 19. b3 a5 20. Ba3 Bd4 21. Bb2 Bc5 22.
Ba3 Bxa3 23. Rxa3 Qc5 24. Ra1 a4 25. bxa4 Bxa4 26. Nc3 Bc6 27. Nb5 Rab8 28. Rab1
Rfd8 29. Qe2 Bd7 30. h3 Be6 31. Rec1 Ra8 32. Rb2 Rdc8 33. Qe3 Qxe3 34. fxe3 Rc6
35. Rc3 Ra1+ 36. Kh2 Rd1 37. Rcc2 Re1 38. Kg3 Nxe4+ 39. Kf3 Nf6 40. Kf2 Ra1 41.
Ra2 Rxa2 42. Rxa2 Bxc4 43. Ra8+ Kh7 44. Nxd6 Bd5 45. Rd8 Rc2 46. Ke1 Bxg2 47.
Nxf7 e4 48. h4 Kg6 49. Ne5+ Kf5 50. Nec4 Kg4 51. Kf2 Kh3 52. Ne5 h5 53. Ng6 Ng4+
54. Ke1 Bf3 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.1"]
[White "Quesada Perez, Luis Ernesto"]
[Black "Albornoz Cabrera, Carlos Daniel"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2513"]
[BlackElo "2577"]
[ECO "A15"]
[Opening "English, 1...Nf6 (Anglo-Indian defense)"]
[WhiteFideId "3520773"]
[BlackFideId "3518736"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. e4 O-O 6. Nge2 c5 7. O-O Nc6 8. d3 a6
9. h3 Rb8 10. a4 Nd7 11. Be3 Nd4 12. f4 e6 13. Rb1 b6 14. b4 Bb7 15. Qd2 f5 16.
Kh2 Kh8 17. Ng1 cxb4 18. Rxb4 a5 19. Rbb1 Nc5 20. Nf3 e5 21. exf5 gxf5 22. Ne1
Bc8 23. Qd1 Bd7 24. Rf2 exf4 25. Bxf4 Nde6 26. Bd2 f4 27. Rxf4 Nxf4 28. gxf4 Ne6
29. Nd5 Bc6 30. Qg4 Bxd5 31. cxd5 Nxf4 32. Be4 Ng6 33. Bxg6 Rf2+ 34. Kg1 Qf6 35.
Be4 Rf1+ 36. Kh2 Qf2+ 37. Ng2 Be5+ 38. Bf4 Bxf4+ 39. Qxf4 Qg1+ 40. Kg3 Rg8+ 41.
Kh4 Rxf4+ 0-1

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.2"]
[White "Martinez Ramirez, Lennis"]
[Black "Hernandez Gonzalez, William"]
[Result "1/2-1/2"]
[WhiteTitle "IM"]
[BlackTitle "IM"]
[WhiteElo "2452"]
[BlackElo "2445"]
[ECO "A01"]
[Opening "Nimzovich-Larsen attack"]
[WhiteFideId "3509079"]
[BlackFideId "3509915"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. b3 g6 2. Bb2 Nf6 3. e4 d6 4. Nf3 Bg7 5. d3 O-O 6. Nbd2 e5 7. Be2 c5 8. Nc4
Nc6 9. a4 Re8 10. O-O b6 11. Nfd2 Nd4 12. Bxd4 cxd4 13. Bf3 Bb7 14. Re1 a6 15.
a5 b5 16. Nb6 Rb8 17. Bg4 Qc7 18. Ra2 Bh6 19. Nb1 Rbd8 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.3"]
[White "Ortiz Suarez, Isan Reynaldo"]
[Black "Martinez Duany, Lelys Stanley"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2519"]
[BlackElo "2547"]
[ECO "C67"]
[Opening "Ruy Lopez"]
[Variation "Berlin defence, open variation"]
[WhiteFideId "3507165"]
[BlackFideId "3504727"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8.
Qxd8+ Kxd8 9. Nc3 Be7 10. Bg5 Ke8 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.4"]
[White "Espinosa Veloz, Ermes"]
[Black "Garcia Pantoja, Roberto"]
[Result "1/2-1/2"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2516"]
[BlackElo "2514"]
[ECO "B12"]
[Opening "Caro-Kann"]
[Variation "advance variation"]
[WhiteFideId "3507424"]
[BlackFideId "3509265"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 cxd4 7. Nxd4 Ne7 8. O-O
Nbc6 9. Bb5 a6 10. Bxc6+ Nxc6 11. Nxf5 exf5 12. c3 Be7 13. Qd3 Nxe5 14. Qxf5 Nc4
15. Bd4 O-O 16. b3 Na5 17. Rd1 Nc6 18. Be3 Bf6 19. Rxd5 Qc7 20. Qd7 Qxd7 21.
Rxd7 Rfd8 22. Rd2 b5 23. Kf1 b4 24. Rxd8+ Rxd8 25. Nd2 Bxc3 26. Rc1 Ne7 27. Ne4
Nd5 28. Nxc3 Nxc3 29. a3 h6 30. axb4 Rd3 31. Ke1 f5 32. Bc5 Kh7 33. f3 f4 34.
Ra1 g5 35. h3 h5 36. Kf1 Nd5 37. Rb1 Rd2 38. Ra1 Rd3 39. Rxa6 Rxb3 40. Ra7+ Kg6
41. Rb7 Rb2 42. b5 Ne3+ 43. Bxe3 fxe3 44. b6 Rf2+ 45. Kg1 Rb2 46. Re7 Rb1+ 47.
Kh2 h4 48. Rxe3 Rxb6 49. Kg1 Rb2 50. Re5 Ra2 51. Re4 Kf5 52. Rg4 Ra1+ 53. Kf2
Ra2+ 54. Ke3 Ra3+ 55. Kd4 Ra4+ 56. Kd5 Ra5+ 57. Kd6 Ra6+ 58. Kd5 Ra5+ 59. Kd4
Ra4+ 60. Ke3 Ra3+ 61. Kf2 Ra2+ 62. Kg1 Ra1+ 63. Kh2 Ra2 64. Rd4 Ra1 65. Rd8 Rf1
66. g4+ hxg3+ 67. Kxg3 1/2-1/2

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.5"]
[White "Quesada Perez, Yasser"]
[Black "Gonzalez Vidal, Yuri"]
[Result "1-0"]
[WhiteTitle "GM"]
[BlackTitle "GM"]
[WhiteElo "2538"]
[BlackElo "2565"]
[ECO "B18"]
[Opening "Caro-Kann"]
[Variation "classical, 6.h4"]
[WhiteFideId "3509362"]
[BlackFideId "3503321"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 e6 8. h5
Bh7 9. Bd3 Bxd3 10. Qxd3 Nf6 11. Bd2 c5 12. Ne4 Nc6 13. Bc3 Nb4 14. Nxf6+ gxf6
15. Bxb4 cxb4 16. d5 Qxd5 17. Qxd5 exd5 18. O-O-O O-O-O 19. Rh4 Bc5 20. Rd2 Rhe8
21. Rf4 Re6 22. Nh4 Ra6 23. c3 Bd6 24. Rf3 Rxa2 25. Rxd5 Bf4+ 26. Kb1 Rxd5 27.
Kxa2 Bc1 28. Nf5 Rd2 29. Kb1 Bxb2 30. cxb4 Be5 31. Nxh6 Rb2+ 32. Kc1 Rxb4 33.
Nxf7 Bb2+ 34. Kc2 Kd7 35. h6 Ke6 36. h7 f5 37. Ng5+ Ke7 38. Rxf5 Ba1 39. g3 Rb2+
40. Kd3 Rb1 41. Rf7+ Kd6 42. f4 a5 43. f5 a4 44. f6 Rh1 45. Rf8 a3 46. h8=Q Rxh8
47. Rxh8 1-0

[Event "56th ch-CUB 2019"]
[Site "Santa Clara CUB"]
[Date "2019.02.13"]
[Round "11.6"]
[White "Almeida Quintana, Omar"]
[Black "Fernandez Cardoso, Alexey"]
[Result "0-1"]
[WhiteTitle "GM"]
[BlackTitle "IM"]
[WhiteElo "2550"]
[BlackElo "2437"]
[ECO "E71"]
[Opening "King's Indian"]
[Variation "Makagonov system (5.h3)"]
[WhiteFideId "3503313"]
[BlackFideId "3504379"]
[EventDate "2019.02.03"]
[EventType "tourn"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 e5 7. d5 a5 8. g4 Na6 9.
Nge2 Nc5 10. Ng3 c6 11. g5 Nfd7 12. dxc6 bxc6 13. Qxd6 Ne6 14. O-O-O Nd4 15.
Nge2 c5 16. Nd5 Bb7 17. Nec3 Ra7 18. Nb5 Bxd5 19. Qxd5 Ra6 20. h4 Qe7 21. Qb7
Rb6 22. Qc7 Rfb8 23. Bh3 R6b7 24. Qxa5 Nb6 25. b3 Na8 26. Rd3 Nc7 27. Nxc7 Rxc7
28. Kb2 Rb4 29. Bd2 Rb8 30. Qc3 Ra7 31. Ra1 Qb7 32. Bg2 Rba8 33. Kb1 Ne2 34. Qc2
Nf4 35. Rg3 Rd8 36. Be3 Qb4 37. a4 Rad7 38. a5 Rd1+ 39. Bc1 R8d2 40. Qc3 Ne2 0-1

