19:08 The Caro-Kann defense, Advance Variation with 3… Bf5 4. c4 (Part 2) |
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Yet another variation in this opening is the following: 1. e4 c6
The idea if the “N e2” move is to attack the Black’s bishop with the knight and the h pawn along the red arrows in the picture above. Black is ready to this attack planning the bishop retreat. According to this plan, the bishop retreats along the green arrows (the Black’s h pawn vacates the h7 square for this retreat – see the green arrow too). While Black plans developing its pieces as it does in the considered variations before. Firstly, the bishop goes to the b4 square. Then the knight develops to the e7 square. White is going to increase the pressure in the king side by moving the queen to the g4 square.
Black can’t play 10. … 0 – 0 because 11. B x h6. There might be 10. … R g8. Though, in this case, White seizes the initiative and holds it almost till the endgame if Black makes long castling. Morever, in this case, White leaves the forced moves for Black only. Now we consider very detailed why Black is so flawed in this case based on the example of the following variation: 10. ... R g8 11. B d2 N d7 12. cd N x d5 13. a3 Q a5 14. R c1 B x c3 15. bc Q x a3 16. B e2 0-0-0 17. c4 N c7 18. Q f4: =>
Now the only good move for black is 18. … c5. In order to understand the dangers that this position prepared for Black and why the “c5” move is a single move for Black we consider what happens if Black plays else. Say, Black plays 18. … a6. White responds 19. N e4 (19. Q x f7? R f8 and the Black’s queen is caught). Now Black has to take the e4 knight by moving 19. … B x e4. Why like that? This is because of White threatens N d6. Really, for example, Black ignores this threat and plays 19. … K b8. If so, the game continues: 20. R h3 Q e7 21. N d6 K a7 22. R b3 R b8 23. Q f3 g5 24. B a5 Q d8 25. N x f7 Q e7 26. B x c7 R f8 27. N d6! R x f3 28. B x f3 => And the Black’s king is in the mate net:
For example, 28. … K a8 29. B x c6 bc 30. R a1 K a7 31. R b7 + K a8 32. R x a6 #. =>
If Black does not want to open the position and plays 25. … K c8 then the game may continue: 26. Q x e6 N c7 27. Q a2 B e4 28. K f1 B d5 29. Q c2 N b5 30. N b2 Q b8 31. N c4 Q c7 32. R g3 N f8 33. N d6 + K b8 34. B f3 N x d6 35. B x d5 cd 36. ed Q c6 37. R b1 N d7 38. K g1 K a8 39. B d2 R c8 40. Q a2 N f6 41. R gb3 R b8 42. R b6 Q c8 43. c6 K a7 44. cb Q c4 45. Q a5 N d7 46. R 1b5 Q x b5 47. R x b5 and White wins again. => Therefore, Black should to prevent the “N d6” threat and should play 19. … B x e4. Then White takes the material back: 20. Q x e4. Now Black has the two options. Black may either hide the queen from the attacks of the White’s rocks or maneuver it in the queen side avoiding the threats that the attacks of the White’s pieces create. Let us assume Black hides the queen behind the pawns in the king side: 20. … Q e7. If so, the White’s attack in the queen side results in that white gets the decisive advantage and wins the game: 21. O-O N b8 22. R b1 Q d7 23. B c3 b5 24. R fc1 g6 25. B a5 Q x d4 26. Q f3 R d7 27. cb ab 28. B x b5 Q d5 29. B x c6 N x c6 30. R x c6 Q x f3 31. gf gh+ 32. K h2 f5 33. ef R g5 34. B b6 R f5 35. R bc1 R x f6 36. B x c7 R f5 37. B b6 +: =>
It's better for Black to choose the second option and to maneuver the queen in the queen side: 20. … Q b3 21. R h3 Q b2 22. R d3. =>
So, no choose but 23. … b6. White prepares the troop from the bishop and the queen targeted to the Black’s king: 24. B f1. Now, After the “g3” and “B g2” moves, White is ready to attack the Black’s king by moving Q b7. It’s necessary 24. … cd. In other case, for example, 24. … g5 25. hg R x g6 26. g3 cd (it’s later already) 27. R b3 Q a2 28. B g2 N e5 29. Q b7 K d7 30. Q x b6 d3 31. R c3 Q a1 + 32. R b1 Q a2 33. R cc1 R g4 34. R a1 and the White’s queen is caught. Again, no choose but 24. … cd. => The game may continue: 25. R b3 Q a2 26. R bb1. => It’s necessary 26. … d3 to prepare the queen escape along the a1 – h8 diagonal. Otherwise, for example, 26. … g5 the game may continue: 27. R a1 Q b2 28. R cb1 Q c2 29. B d3 N e5 30. B x c2 N x f3 31. gf and Black loses the material. => In the case of 26. … Q a4, the game may continue: 27. c5 N x c5 28. B c4 b5 29. B b3 N x b3 30. R x b3 K b8 31. R a3 and the Black’s queen is caught. => If 28. … Q d7 then 29. B x a6 + N 7 x a6 30. Q a8 + K c7 31. Q x a6 Q c8 32. Q x b6 + K d7 33. R x c5 Q b8 34. Q c6 + K e7 35. R x b8 and White wins the queen again. => If 27. … N x e5 then 28. Q g3 f6 29. cb R d6 30. R b4 Q d7 31. B a6 + K d8 32. bc + and White wins the material again. => Thus, 26. … d3 27. g3. It’s necessary 27. … N x e5. In other case, for example, 27. … g5 28. B g2 R e8 29. R x b6 N x e5 30. Q e4 N d7 31. Q b7 + K d8 32. R c6 Q a3 33. R x c7 Q d6 34. R x d7 + and White wins the queen. => Therefore, 27. … N x e5 28. Q e4 N x c4 29. Q x c4 Q x c4 30. R x c4 and White wins the material. => If 28. … N d7 then 29. B g2 R e8 30. Q b7 + K d8 31. c5 bc 32. B c6 e5 33. B x d7 K x d7 34. R x c5 R c8 35. Q c6 + K d8 36. Q d6 + K e8 37. R b c1 Q e6 38. R x e5 and White wins the queen. => If 28. … f6 then 29. B g2 Q a3 30. R b4 a5 31. R x b6 R f8 32. R cb1 K d7 33. R b7 R b8 (to avoid the mate attack, for example, 28. R … g8 29. R x c7 + K x c7 30. B b7 + K d6 31. R b6 + K c5 32. B a3 + R d4 33. Q c7 + N c6 34. Q x c6 #) 34. Q d4 + Q d6 35. Q x d6 K x d6 36. R b6 + K d7 37. R x b8 R x b8 38. R x b8 and White wins the rock. => It's time to remind we consider the case of 18. … a6 to demonstrate what happens if White makes any eighteenth move except of c5. I think this case convinces my reader that the position at the eighteenth move conceals a lot of dangers for Black and Black has to be very accurate in the eighteenth move. Thus, Black has to play 18. … c5. White responds 19. 0 – 0. It’s necessary 19. … cd. Otherwise, for example, 19. … a6 20. B f3 cd 21. R b1 B x b1 22. R x b1 g5 23. B x b7 + K b8 24. B f3 K c8 25. Q e4 R e8 26. Q b7 + K d8 27. B b4 Q a4 28. B d6 Q x c4 29. B c6 R e7 30. Q b8 + N x b8 31. R x b8 #. => Therefore, 19. … cd 20. R a1 Q c5 (defending the a7 pawn) 21. R a5 Q b6 22. R fa1 a6 23. N e4. => Again, Black has to take the e4 knight now. Otherwise, for example, 23. … K b8 24. c5 N d5 25. Q h4 Q c6 26. N d6 N x c5 27. R c1 N c3 28. B x c3 N b3 29. B f3 R x d6 30. ed Q x d6 31. R a4 dc 32. R x c3 N c5 33. R d4 Q e5 34. R x c5 Q x c5 35. R d7 b5 36. Q f4 + e5 37. Q x f7 Q c1 + 38. R d1 Q c8 39. Q d5 e4 40. B e2 B f5 41. Q e5 + K a8 42. B x b5 ab 43. Q x b5 Q b7 44. R a1 + K b8 45. Q e5 + K c8 46. Q x f5 + Q d7 47. Q c5 + Q c7 48. Q d5 Q b6 49. R c1 + K b8 50. Q x g8 + and White wins the rock. => Therefore, 23. … B x e4 24. Q x e4. It’s necessary 24. … N c5. In other case, for example, 24. … f5 25. ef gf 26. B f3 f5 27. Q c2 d3 28. Q c3 N c5 29. Q e5 N e4 30. B x e4 fe 31. B e3 Q d6 32. Q x e4 R d7 33. B x h6 Q b4 34. R e5 Q b2 35. R d1 R d4 36. Q e1 R dg4 37. g3 Q b6 38. K h2 Q c6 39. Q h1 Q d6 40. B f4 R f8 41. Q e1 Q d8 42. B h6 R h8 43. Q e3 Q e8 44. Q f3 R x c4 45. B g7 R h7 46. R g5 Q e7 47. B f6 Q f7 48. R x d3 N e8 49. R d8 + K c7 50. Q d3 R x h5 + 51. R x h5 Q x h5+ 52. K g2 b5 53. Q d7 + K b6 54. R b8 + K a5 55. Q d2 + K a4 56. Q a2 + K b4 57. B e7 + K c3 58. R d8 Q g6 59. R d1 Q e4 + 60. K g1 and White has to sacrifice the queen to avoid the mate: 60. Q d4 (for example, if 60. ... N c7 61. Q a3 + K c2 62. R c1 + K d2 63. B b4 + R c3 64. Q x c3+ K e2 65. R e1 #). => Therefore, 24. … N c5 25. R x c5 Q x c5 26. B f3 K d7 27. R b2 a5 (To avoid the threat of B b4. For example, if 27... g5 then 28. hg fg 29. B b4 Q x c4 30. B a3 Q c3 31. R c1 Q b3 32. Q x d4 + N d5 33. B x d5 Q x d5 34. Q f4 R g7 35. B d6 R dg8 36. R c7 + K e8 37. R x g7 R x g7 38. Q f8 + K d7 39. Q x g7 +) 28. Q f4 K e7. We come to the equal position: =>
The game may continue: 29. Q h4 + K d7 30. B x b7 R b8 31. Q g3 K e7 32. R b3 Q xc 4 33. Q h4 + f6 34. R c3 Q x c3 35. B x c3 dc 36. Q d4 R x b7 37. Q d6 + K f7 38. Q d7 + K f8 39. Q d6 + K f7 40. Q d7 + K f8 41. Q c8 + K e7 42. Q x b7 K d7 43. Q b3 N d5 44. Q b7 + N c7 45. Q b3 N d5 46. Q b7 + K e8 47. f4 f5 48. g4 Ne7 49. gxf5 Nxf5 50. Qc8+ Kf7 51. Qxc3 Rd8 52. Qxa5 Rd4 53. Qc7+ Ne7 54. f5 R g4 + 55. K h2 ef 56. K h3 K e6 57. Q d6 + K f7 58. Q a6 N d5 59. Q b7 + K e6 60. Q b8 N e7 and we come to the equal endgame:
To view variation click this button: =>
In this variation, the game may continue: 16. … b5 17. N e4 f5 18. ef B f5 19. Q h4 N 7xf6 20. f3 R f8 21. N c5 N d7 22. N x d7 K x d7 23. O-O and we get the equal position: =>
Here we find a better game for Black in the variation:
Our previous investigation of this variation shows that the escape of Black’s bishop from the attack of White’s knight and pawn results in the game where Black has to make the forced moves. Therefore, to play with White is easier in this case. Resuming our investigation, I give the records of the two variation – with castling and without castling, that may occur in the case of the bishop escape. Here the variation with castling where Black should be very accurately during large part of the game: 5. … B b4 + 6. N bc3 N e7 7. N g3 B g6 8. h4 h6 9. h5 B h7 10. Q g4 R g8 11. B d2 N d7 12. cd N x d5 13. a3 Q a5 14. R c1 B x c3 15. bc Q x a3 16. B e2 0-0-0 17. c4 N c7 18. Q f4 c5 19. O-O cd 20. R a1 Q c5 21. R a5 Q b6 22. R fa1 a6 23. N e4 B x e4 24. Q x e4 N c5 25. R x c5 Q x c5 26. B f3 K d7 27. Rb1 a5 28. Q f4 K e7 29. Q h4 + K d7 30. B x b7 R b8 31. Q g3 K e7 32. R b3 Q x c4 33. Q h4 + f6 34. R c3 Q x c3 35. B x c3 dc 36. Q d4 R x b7 37. Q d6 + K f7 38. Q d7 + K f8 39. Q d6 + K f7 40. Q d7 + K f8 41. Q c8 + K e7 42. Q x b7 K d7 43. Q b3 N d5 44. Q b7 + N c7 45. Q b3 N d5 46. Q b7 + K e8 47. f4 f5 48. g4 N e7 49. gf N x f5 50. Q c8 + K f7 51. Q x c3 R d8 52. Q x a5 R d4 53. Q c7 + N e7 54. f5 R g4 + 55. Kh2 ef 56. K h3 K e6 57. Q d6 + K f7 58. Q a6 N d5 59. Q b7 + K e6 60. Q b8 N e7 => And here is other variation without castling that is more flexible for Black than a previous one: 5. … B b4 + 6. N bc3 N e7 7. N g3 B g6 8. h4 h6 9. h5 B h7 10. Q g4 R g8 11. B d2 N d7 12. cd N x d5 13. a3 Q a5 14. R c1 B x c3 15. bc Q x a3 16. B e2 b5 17. N e4 f5 18. ef B f5 19. Q h4 N 7 x f6 20. f3 R f8 21. N c5 N d7 22. N x d7 K x d7 => How to avoid these forced variations for Black? Since White attacks Black’s bishop advancing its pawn to the h5 square Black has to prevent this advance. They may do this playing 8. … h5 instead of 8. … h6:
Though White gets other advantage in this case. They may do the triple attack to the h5 pawn using the knight, the bishop and the queen (see the red arrows in the picture above). This is what White does in this variation as we see below.
Now Black has the two choices – to ignore the threat of B x g6 or to prevent this one. Let us look what happens if Black ignores it. The game may continue: 18. … R ab8 19. B g5 Q x c3 20. B x g6:
Now the e6 knight can’t take the b6 bishop as it has to defense the c6 knight. If it leaves the c6 knight without defense Black loses this knight: 20. … N x g6 21. R c1 Q b4 22. R x c6 Since the e6 knight can’t take the g6 bishop the f6 pawn takes it and Black ruins its pawn structure. In this case, the game may continue: 20. ... fg 21. R c1 Q b2 22. Ne2 Q x a2 23. Nf4 a5 24. R a1 Q b2 25. R e2 Q b3 26. N x e6 Q x d1+ 27. R x d1 R fe8 28. N f4 N f5 29. e6 =>
As result Black gets the four weak pawns and the double pawns. Therefore, it is very difficult for Black to hold this position. Though, that’s drawish position. If Black prevents the B x g6 threat the game may continue: 18. ... B x h5 19. N x h5 N g6 => And White strikes a blow: 20. N x g7. Here White uses that Black’s knight is pinned to the king after 20. … K x g7 21. Q g4 and wins the knight back advancing the h pawn:
Thus, the game may continue: 20. N x g7 K x g7 21. Q g4 R h8 22. h5 R ag8 23. g3 K f8 24. hg R x g6 25. Q f4 R g7 26. K g2 R gh7 27. R h1 R x h1 28. R x h1 R x h1 29. K x h1 Q x c3 and we get the equal position: =>
In this variation, Black has to be accurate after the N x g7 blow. The most optimal option for Black to play 7. … c4 instead of B g6:
Really, no reason for Black to be afraid N x f5 as the e7 knight defenses the f5 bishop and Black may win material back by moving N x f5 without crashing its pawn structure (the pawn structure is crushed in the case of ef instead of N x f5). Thus, the game may continue: 7. … c5 8. B d2 0-0 9. dc dc 10. N ce4 B x e4 11. N x e4 B x d2 + 12. Q x d2 Q d5 13. f3 N bc6 14. Q c3 N x e5 15. R d1 N d3 + 16. B x d3 cd 17. 0-0 Q x a2 18. R x d3 b6 19. R c1 bc 20. Q a3 Q x a3 21. R x a3 R fb8 22. R ca1 N c6 23. R a6 N d4 24. R x a7 R x a7 25. R x a7 h6 26. R a2 R b5 27. N d6 R b8 and we get the equal endgame: =>
Contrast to all other variation, Black takes the initiative and has a small positional advantage in this variation. |
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