Partidas en base

Julio Espinosa - Amador

Campeonato de Cuba XXXV Las Tunas 1996

Siciliana Alapin B22

1. e4 c5 2. c3 d5 3. ed5 Qd5 4. d4 Nc6 5. dc5!?

Ambitious and logical. Most common is 5.f3 while 5.e3 is less enterprising.

5... Qc5 6. Na3 Qa5!?

Both 6...e5 and 6...f6 have apparently a better reputation. The text move is well playable and can lead to a exciting fight as this game shows.

7. Bf4!?

$146 [7. Nb5 Bd7!? (7... Nf6?! 8. b4 Qd8 9. Bf4 e5 10. Qd8 Kd8 11. O-O-O White has the initiative Dobrovolsky,Ladislav-Babula,Vlastimil/Czech tt (06) 1993 1/2-1/2 (36)) 8. b4 Qd8 9. Nf3 a6 10. Nbd4 Nf6 drawish position Svesnikov-Kuindzi, SSSR 1974] [7. Nc4 Qc7 drawish position] [7. Be3 Nf6 8. Nc4 Qc7 unclear position ECO] [7. Nf3 things are not so easy for Black after this natural move. 7... Bg4 (7... Nf6 8. Bf4 (8. Qb3!? e6 9. Nc4 Qc7 10. Be3 White has a slight advantage) 8... Bd7 9. Qb3 White has a moderate advantage) 8. Be2 Nf6 9. O-O (9. Qb3!? Qc7 10. Nb5 Qb8 11. Be3 (11. Ng5 e6 12. Bg4 (12. Ne4? Be2 13. Nf6 gf6 Black has a slight advantage) 12... Ng4  e5+) 11... e6 12. O-O-O Be7 13. h3 Bh5 14. Nbd4 White has a slight advantage) 9... Rd8 10. Qb3 Rd7 11. Nc4 (11. Bf4!? e6 12. Nc4 White has the initiative) 11... Qc7 12. Bg5 e6 13. Rad1 Rd1 14. Rd1 Be7 15. Bh4 O-O 16. Bg3 White has a slight advantage Roeder,F-Dizdarevic,E/Bad Wörishofen (3) 1988 0-1 (50)]

7... e5

[7... Bd7?! 8. Nc4! (8. Nb5 Rc8) 8... Qd8 9. Qb3 when Black's position looks horribly passive. (9. Qe2!?)]

8. Nc4 Qc7 9. Ne5!? Ne5 10. Bb5 Ke7

One of those sacrifices like 4.xf7 in the Petrov where it is impossible to analyze it till the very end. White has only a pawn in return for his piece but the black king finds it very uncomfortable in the center.

11. Qe2

Here I thought for a long time, 11...f6 seems evident but 11...f6 was also tempting, it had a very ugly look but over the board I could not find a direct refutation. Further analysis shows it is not so easy to refute anyway.

11... f6

[11... Kf6 Here are some of the possibilities that were considered right after the game 12. Bg3! A extremely difficult move to meet over the board, the saving resource d3+ does not work anymore and the f-file is cleared to recapture with check on f3 after f3 which is coming with great strength. (12. Rd1 Bd6 (12... Be6?! 13. Nf3 Nd3 14. Qd3 (14. Rd3 Qf4) 14... Qf4 15. g3  d4+) (12... Ne7!?) 13. Kf1 g5 14. Bg5 Kg5 15. Qd2 Kg6 16. Qd6 Qd6 17. Rd6 Nf6 Black has a moderate advantage) (12. Qh5 Nd3 13. Bd3 Qf4 Black has a decisive advantage) (12. Nf3 Nd3 13. Bd3 (13. Qd3 Qf4 14. g3 Qd6 Black has a decisive advantage) 13... Qf4 14. Qe8 Ne7 Black has a moderate advantage) (12. O-O-O Nd3 13. Rd3 Qf4 14. Kd1 Bg4 Black has a moderate advantage) 12... Ne7 (12... Be6 13. Nf3 (13. f4 White has the attack) 13... Bd6 14. Rd1 Nc4 15. Bh4 Kg6 16. Qe4 White has a moderate advantage) (12... Bd6 13. O-O-O  f3, he1) (12... Nh6? 13. Nf3 Bd6 14. O-O-O White has a decisive advantage) (12... Qc5!? 13. f4 Ng4 14. Bh4 g5 15. fg5 (15. Bg5 Kg7 16. Nf3 Qe3) 15... Kg7 16. h3 a6 17. Bd3 Ne5 18. Be4 White has sufficient compensation for material deficit) (12... Bf5 13. O-O-O White has sufficient compensation for material deficit (13. Nf3? Nf3 14. Qf3 Qe7 15. Kf1 Qe4 Black has a decisive advantage) 13... Ne7? 14. Nf3 N7g6 15. Ne5 Ne5 16. Rhe1 White has a decisive advantage) 13. Nf3 N7g6 14. Ne5 Ne5 15. O-O-O White has sufficient compensation for material deficit]

12. Nf3

[12. O-O-O a6 13. Ba4 Be6 (13... Qc4 14. Be5! Qe2 15. Bd6 Ke6 16. Bb3 Kd7 17. Bf8! Qd1 18. Kd1 h5 19. Bg7 Rh7 20. Bf8 White has a slight advantage) 14. Nf3 Nd3 (14... Qc4!?) 15. Rd3 Qf4 16. Re3 Kf7 Black has a moderate advantage]

12... Bg4

singular move

13. O-O-O a6!

singular move

14. Qe3

[14. Bd7 Bf3 (14... Bd7 15. Ne5 fe5 16. Be5 Qc6 17. Bg7 Kf7 18. Bh8 Bf5 unclear position) 15. gf3 Kf7 d6, e7 16. Qe4 g6 17. Ba4 Bh6 Black has a moderate advantage] [14. Ba4!? Qc4 (14... b5 15. Bb3 g6 16. Qe4 Bf3 17. gf3 Rc8 18. Rd5 (18. Qd5 Qc6) 18... Bg7 (18... Bh6 19. Bh6 Nh6 20. f4) 19. Rhd1 White has the attack) 15. Qc4 (15. Qe3 Qa4) 15... Nc4 16. Rhe1 Kf7 17. Bd7 h5 (17... Bf3 18. Be6 Kg6 19. gf3 Ne5 20. Rg1 Kh5 21. Rd5) 18. h3 Bd7 19. Rd7 Kg6 20. Rb7 Black has a slight advantage] [14. Bd3 Bf3 15. gf3 g5  f7-g7]

14... ab5 15. Ne5 fe5 16. Be5 Qc4!

Black has a decisive advantage

17. Qg5

[17. Bg7 Kf7 18. Bh8 Bh6 19. f4 Bd1 Black has a decisive advantage] [17. Rd4 Qe6 18. f3 Bf5 19. g4 Bg6 20. Rhd1 (20. Re1 Kf7 21. f4 Ra2 22. f5 Bf5 23. gf5 Qb3 Black has a decisive advantage) 20... Ke8 Black has a decisive advantage]

17... Nf6 18. Rhe1 Kf7 19. Rd4 Qe6 20. Rde4



20... Ne4 21. Re4 Bf5 22. Re3 Qg6 23. Qf4 Kg8

[23... Qg4]

24. Rg3 Qf7 25. Rf3 Bg6 26. Qg4 Qa2 27. Qd7 Qa1 28. Kd2 Qb2 29. Ke3 Qc1

0-1

[Event "CUB-ch Las Tunas"]
[Site "Las Tunas"]
[Round "11"]
[White "Espinosa, Julio"]
[Black "Rodriguez, Amador"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2335"]
[BlackElo "2485"]
[Annotator "Rodriguez,Am"]
[PlyCount "58"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. dxc5 $5 {Ambitious and logical. Most common is 5.f3 while 5.e3 is less enterprising.} Qxc5 6. Na3 Qa5 $5 {Both 6...e5 and 6...f6 have apparently a better reputation. The text move is well playable and can lead to a exciting fight as this game shows.} 7. Bf4 $5 $146 (7. Nb5 Bd7 $5 (7... Nf6 $6 8. b4 Qd8 9. Bf4 e5 10. Qxd8+ Kxd8 11. O-O-O+ $36 {Dobrovolsky,Ladislav-Babula,Vlastimil/Czech tt (06) 1993 ½-½ (36)}) 8. b4 Qd8 9. Nf3 a6 10. Nbd4 Nf6 $10 {Svesnikov-Kuindzi, SSSR 1974}) (7. Nc4 Qc7 $10) (7. Be3 Nf6 8. Nc4 Qc7 $13 {ECO}) (7. Nf3 {things are not so easy for Black after this natural move.} Bg4 (7... Nf6 8. Bf4 (8. Qb3 $5 e6 9. Nc4 Qc7 10. Be3 $14) 8... Bd7 9. Qb3 $16) 8. Be2 Nf6 9. O-O (9. Qb3 $5 Qc7 10. Nb5 Qb8 11. Be3 (11. Ng5 e6 12. Bxg4 (12. Ne4 $2 Bxe2 13. Nxf6+ gxf6 $15) 12... Nxg4 { e5+}) 11... e6 12. O-O-O Be7 13. h3 Bh5 14. Nbd4 $14) 9... Rd8 10. Qb3 Rd7 11. Nc4 (11. Bf4 $5 e6 12. Nc4 $36) 11... Qc7 12. Bg5 e6 13. Rad1 Rxd1 14. Rxd1 Be7 15. Bh4 O-O 16. Bg3 $14 {Roeder,F-Dizdarevic,E/Bad Wörishofen (3) 1988 0-1 (50)}) 7... e5 (7... Bd7 $6 8. Nc4 $1 (8. Nb5 Rc8) 8... Qd8 9. Qb3 {when Black's position looks horribly passive.} (9. Qe2 $5)) 8. Nc4 Qc7 9. Nxe5 $5 Nxe5 10. Bb5+ Ke7 {One of those sacrifices like 4.xf7 in the Petrov where it is impossible to analyze it till the very end. White has only a pawn in return for his piece but the black king finds it very uncomfortable in the center.} 11. Qe2 {Here I thought for a long time, 11...f6 seems evident but 11...f6 was also tempting, it had a very ugly look but over the board I could not find a direct refutation. Further analysis shows it is not so easy to refute anyway.} f6 (11... Kf6 {Here are some of the possibilities that were considered right after the game} 12. Bg3 $1 {A extremely difficult move to meet over the board, the saving resource d3+ does not work anymore and the f-file is cleared to recapture with check on f3 after f3 which is coming with great strength.} (12. Rd1 Bd6 (12... Be6 $6 13. Nf3 Nd3+ 14. Qxd3 (14. Rxd3 Qxf4) 14... Qxf4 15. g3 { d4+}) (12... Ne7 $5) 13. Kf1 g5 14. Bxg5+ Kxg5 15. Qd2+ Kg6 16. Qxd6+ Qxd6 17. Rxd6+ Nf6 $17) (12. Qh5 Nd3+ 13. Bxd3 Qxf4 $19) (12. Nf3 Nd3+ 13. Bxd3 (13. Qxd3 Qxf4 14. g3 Qd6 $19) 13... Qxf4 14. Qe8 Ne7 $17) (12. O-O-O Nd3+ 13. Rxd3 Qxf4+ 14. Kd1 Bg4 $17) 12... Ne7 (12... Be6 13. Nf3 (13. f4 $40) 13... Bd6 14. Rd1 Nc4 15. Bh4+ Kg6 16. Qe4+ $16) (12... Bd6 13. O-O-O { f3, he1}) (12... Nh6 $2 13. Nf3 Bd6 14. O-O-O $18) (12... Qc5 $5 13. f4 Ng4 14. Bh4+ g5 15. fxg5+ (15. Bxg5+ Kg7 16. Nf3 Qe3) 15... Kg7 16. h3 a6 17. Bd3 Ne5 18. Be4 $44) (12... Bf5 13. O-O-O $44 (13. Nf3 $2 Nxf3+ 14. Qxf3 Qe7+ 15. Kf1 Qe4 $19) 13... Ne7 $2 14. Nf3 N7g6 15. Nxe5 Nxe5 16. Rhe1 $18) 13. Nf3 N7g6 14. Nxe5 Nxe5 15. O-O-O $44) 12. Nf3 (12. O-O-O a6 13. Ba4 Be6 (13... Qc4 14. Bxe5 $1 Qxe2 15. Bd6+ Ke6 16. Bb3+ Kd7 17. Bxf8+ $1 Qxd1+ 18. Kxd1 h5 19. Bxg7 Rh7 20. Bf8 $14) 14. Nf3 Nd3+ (14... Qc4 $5) 15. Rxd3 Qxf4+ 16. Re3 Kf7 $17) 12... Bg4 $8 13. O-O-O a6 $1 $8 14. Qe3 (14. Bd7 Bxf3 (14... Bxd7 15. Nxe5 fxe5 16. Bxe5 Qc6 17. Bxg7+ Kf7 18. Bxh8 Bf5 $13) 15. gxf3 Kf7 {d6, e7} 16. Qe4 g6 17. Ba4 Bh6 $17) (14. Ba4 $5 Qc4 (14... b5 15. Bb3 g6 16. Qe4 Bxf3 17. gxf3 Rc8 18. Rd5 (18. Qd5 Qc6) 18... Bg7 (18... Bh6 19. Bxh6 Nxh6 20. f4) 19. Rhd1 $40) 15. Qxc4 (15. Qe3 Qxa4) 15... Nxc4 16. Rhe1+ Kf7 17. Bd7 h5 (17... Bxf3 18. Be6+ Kg6 19. gxf3 Ne5 20. Rg1+ Kh5 21. Rd5) 18. h3 Bxd7 19. Rxd7+ Kg6 20. Rxb7 $15) (14. Bd3 Bxf3 15. gxf3 g5 { f7-g7}) 14... axb5 15. Nxe5 fxe5 16. Bxe5 Qc4 $1 $19 17. Qg5+ (17. Bxg7+ Kf7 18. Bxh8 Bh6 19. f4 Bxd1 $19) (17. Rd4 Qe6 18. f3 Bf5 19. g4 Bg6 20. Rhd1 (20. Re1 Kf7 21. f4 Rxa2 22. f5 Bxf5 23. gxf5 Qb3 $19) 20... Ke8 $19) 17... Nf6 18. Rhe1 Kf7 19. Rd4 Qe6 20. Rde4 {} Nxe4 21. Rxe4 Bf5 22. Re3 Qg6 23. Qf4 Kg8 (23... Qg4) 24. Rg3 Qf7 25. Rf3 Bg6 26. Qg4 Qxa2 27. Qd7 Qa1+ 28. Kd2 Qxb2+ 29. Ke3 Qc1+ 0-1