21:46 How to defend against B d3 in the Caro-Kann defense |
We are talking about the following variation:
Our variation is considered in respect of that how to play for Black pieces. Black proceeds to 4. … B x d3. Here we consider the main White’s respond only that is 5. Q x d3. Black continues:
Now we expect any developing move from White’s pieces. For definiteness, let us talk about the following move:
Finally, the root move of our variation is suddenly: 6. … Q a5 + What is idea of this move. See the picture here:
Black wants to put queen to the a6 square forcing the queen exchange or preventing the short castling in the case if the White queen leaves the d3 square as the Black’s queen hits the f3 square in this case. In the case of the queen exchange, Black gets the position no worse than White’s position for the subsequent endgame. Again, we consider the main White respond to the “6. … Q a5+” move that is 7. B d2. Thus, the game is going on: 7. B d2 Q a6 In this article we analyze the exchange variation only. We consider the ideas that may be used in this variation based on the examples of the two games. Exchange variationNow it’s not good idea to leave queen in the d3 square for White pieces as Black takes White’s queen and after 9. cd White ruins its pawn structure. That’s why in the exchange variation it’s better for White to take a queen itself: 8. Q x a6 N x a6=> After exchange, there are possible about twenty good moves for White. Among them are a4, g3. Let us consider these moves one by one. Since we have the endgame after the queen exchange our strategy should use the endgame’s principles. As for me they are:
It’s better to make the multifunctional moves that perform the several tasks from the list above. What to use firstly from all of these methods? The first two principles are necessary though this depends on the degree of threat of these problems. Among others, use one that requires less count of tempos as an initiative is very important in the endgame. However, if other method brings more troubles for an enemy even if you lose more tempos then, of course, it is more preferred. Exchange variation beginning with 9. a4What is an idea of the a4 move? See the picture below: White prepares the outpost for a knight (see the red arrows) that takes the squares in the rear of the enemy under control. In its turn, Black plans to develop the pieces from its king side (see the green arrows). We will consider ideas that can be applied in this endgame using the example of a concrete game. I present to your attention a recording of this game's moves with comments on some of these moves. So, the game continues: 9. a4 c5 Now both White and Black center their kings and connect their rocks. Black develops its bishop to the c5 square. 12. K e2 cd
After 14. c4 Black gets a powerful weapon - to create a distant passed pawn (see the green arrow in the picture above). 15. … d4 Notice that after 14. c4 Black can’t take the c4 pawn as White wins a pawn back easy and gets the better position in this case: 14. … dc 15. N x c6 K x c6 16. R hc1 K c5 17. b3 and White wins a pawn back. => If Black plays 15. … bc then 16. Rhc1 Rb8 17. R ab1 Be7 18. R x c4 R b7 19. R d4 + K c7 20. b4 Rhb8 21. b5 cb 22. R c1 + N c5 23. B b4 ba 24. B x c5 B x c5 25. R x c5 K b6 26. R cc4 a3 27. R a4 K c7 28. R x a3 R c8 29. R c3+ K b8 30. R x c8 + K x c8. And White gets a winning position.=> Also, I’d like to notice the following thing. A distance passed pawn resource is so powerful that playing side may sacrifice material to have it. Thus, in the following continuation of our game Black exchanges a rock to a bishop to save the d distance passed pawn: 16. Rab1 Rhd8 17. Bg5 Nab4 18. Bxd8 Rxd8 19. Rhd1 Ke7 20. h3 b6 21. Kf1 a6 22. Na3 d3 23. Re1 Nd4 24. Rbd1 N x f3 25. gf f5 26. ef+ gf 27. a5 ba 28. Nb1 f5 29. Nc3 Rd4 30. b3 Rd6 31. f4 Rd8 32. Nd5+ Kf7 33. N x b4 B x b4 34. Re3 d2 35. Ke2 a4 36. ba Rd4 37. c5 R x f4 38. Rb3 Ke7 39. a5 Re4+ 40. Kd3 Kd7 41. f3 Rh4 42. Ke2 Kc6 43. Re3 Kd5 44. c6 Rc4 45. Rb1 Kd6 46. c7 K x c7 47. Rxb4 R x b4. => Here we see that, in seventeenth, move Black moves a knight and agrees to exchange its rock to White’s bishop what happens in eighteenth move. Then White has to return material back in 47 – th move to prevent the threat from the d passed pawn. Now White has to take into account the threat of passing the distant pawn and puts its rock to the d1 square in this pawn line. Black puts its rock to the d8 square to help its pawn: 16. R ad1 Ke7 The “18. R e1” move is multifunctional move. Black is going to put its rock to the e4 square. In this square, rock presses to the d4 pawn and is able to move along fourth horizontal. Besides Black puts a rock in a half-open line. Also the “18. R e1” move might be the countermeasures against moving the Black’s f pawn. Because if White moves its f pawn then the Black’s e pawn may take it and the Black’s e rock is in an open line already and can prevent White to pass its e pawn. However, this possibility has not been used in the considered game. The picture below shows the “R e1” move ideas:
Thus, our game is going on: 19. … f6 Now we get the very difficult position:
To understand it a comparative analysis is necessary. What is a main threat for White? To know it let us assume White does nothing or moves 23. K g1. If so Black wins a pawn: 23. … N x e5 24. N x e5 fe 25. R e1 R h5. =>So the main threat for White is that Black may win the e pawn by moving N x e5. Now we show that dropping the b pawn helps to hold an equal position for White. So White moves 23. b4. If Black takes the b pawn by moving B x b4 or N x b4 then White wins a material back easy. Really, Let us assume firstly Black moves 23. … B x b4. If so White moves 24. B x b4. The main advantage of this move is that the e rock hits the e4 pawn. This helps for White to win a pawn back: 24. … N a x b4 25. c5 N x e5 26. R x d4 R x d4 27. R x d4 N ec6 28. R d7 + K g6 29. R x b7. => There might be 27… N b c6. If so 28. N x e5 + N x e5 29. N x a7. => Thus, we see that White takes a pawn back anyway in the case of 23. … B x b4. Now let us assume Black moves 23. … N a x b4. If so 24. N b x d4 N x e5 25. N x e5 fe 26. Nf3 and the e5 pawn is lost inevitably. Say, 26. … K f6 27. N x e5 K x e5 28. B c3 K f5 29. R g5+ K f4 30. R x d7. => Thus we see White holds the equal position by moving 23 . b5 and fends the “N x e5” threat. More deep analysis shows that the only move to hold the equal position is the “23. b5” move. What a contrast! Recently White has the twenty good moves but now there is one good move only Thus, our game ends with: 23. b4 Naxb4 Exchange variation beginning with 9.g3What is idea of the g3 move? See the picture below:
White wants to build the powerful pawn line either along the h2 – e5 diagonal or along the f2 – h4 diagonal (see the orange lines). Black plans to develop its pieces like in the previous variation (see the green arrows). However White is not in hurry to implement its idea as the main actions of the game are going to occur in the queen side and White should to take actions in this side in order not to lose the initiative in this game. As I told the initiative is very important in the endgame. It’s like an energy in the live: no energy no anything. Same in the chess endgame: no initiative no success. Beside White should develop a knight in the queen side. Again, we will consider ideas that can be applied in this endgame using the example of a concrete game. Below is the recording of this game's moves with my comments on some of these moves. 9. g3 c5 Now White intends to develop the b knight to the a3 square, but not to the c3 square! If 12. N c3 White losses a pawn and can’t win it back. In this case, the only way to win a pawn back for White is to attack the Black’s c pawn with the a rock moving it to the c1 square. Thus, the game may continue: 12. Nc3 Nxc5 13. Ke2 a6 14. Rac1 Nc6 15. Nb1 b5 and the Black’s c pawn defended reliably. => If 13. R c1 then 13. … N d3 + and Black wins a material.=> Thus, game is going on: 12. N a3. Black gives the c pawn in a profitable edition: 12. … c3 13. B x c3. Now Black develops a knight wining a tempo 13. … N d5. After that the Black’s d5 knight attacks White’s bishop. Now if the d5 knight takes the White’s c3 bishop then White has to respond bc and ruins its pawn structure. Thus, White should spend a tempo to prevent this threat. That’s why White responds 14. N b5 defending its bishop. => The game is going on: 14. … B x c5 So, we get the position:
Now White is ready to implement its original plan – to build the powerful pawn line along the h2 – e5 diagonal. To do it Black puts its knight to the d2 square to clear the way for its f pawn. After that Black moves the f pawn to the f4 square and, this way, they place its pawns along the h2 – e5 diagonal (see the red arrows). Thus, the game continues: 16. N d2 N x c3 Meanwhile Black creates the isolator – the c pawn in the camp of the enemy using a bishop maneuver: 17. … B d4 18. f4 B x c3. And White gets an isolator after 19. bc:
This is the way for Black to seize the initiative. Now Black gets the ability to press to the c pawn making the double rocks in the c line (see the green arrows). My reader may make a note this way to get initiative in the endgame. Thus, the game is going on: 19. … R hc8 White fights for an initiative also and prepares to double rocks in the open d line: 23. R d3 … => The threat of invasion along the d line is very big now. Thus, in careless game, Black may lose the material: 23. … R a c8 24. R b d1 N b8 25. N d6 R d8 26. N f5 + and Black loses the material. Now Black has to take into account this threat or Black gets a worse position. => The game continues: 23. … R d8 24. R x d8 K x d8 25. N d6 K e7 26. N b5 R b7 27. N d6 R c7 28. N b5 R b7 29. g4 h6 30. N d6 R c7 31. N b5 R b7 32. h4 N c5 33. h5 … => And we come to the drawish position:
The rest of the game is interesting only in the case if we consider the ideas that may be applied in the occurred endgame. This is a large topic that does not fit within the scope of this article. Therefore, I present the recording of this game’s rest only with the single comment at the very end of this game: 33. h5 f6 34. ef+ K x f6 35. R d1 R e7 36. R d8 e5 37. R f8+ K e6 38. f5+ K d5 39. f6 gf 40. R x f6 R h7 41. R g6 K e4 42. R f6 K d5 43. K e3 N d7 44. R g6 N f8 45. R g8 N e6 46. R a8 R g7 47. K f3 e4+ 48. K g3 e3 49. c4+ K x c4 50. R e8 N d4 51. N x d4 K x d4 52. R e6 K d3 53. R d6+ K e2 54. R x h6 … => Now we have the position:
In this position, Black has the two moves only that leads to the draw. When playing any other move Black loses. To find a good move lets try a bad one firstly. Say, Black moves 54. … R d7. In this case White puts its rock to the e line and this rock takes the Black’s e pawn inevitably while the White’s h – g pawns are unstoppable and White wins. For example, the game may continue: 55. R e6 K d2 56. g5 e2 57. g6 e1=Q+ 58. R x e1 K x e1 59. h6 and White’s pawns are unstoppable. => It is therefore, it’s very important to occupy the e line for Black. Thus, 54. … R e7 leads to the draw (see recording of this game’s ending). The very difficult analysis shows that the “54. … R f7” leads to the draw too. However, consideration of this variation may take a whole article. My reader may consider this variation on one’s own if it is interesting for you. Here is the end of the game: 54. … R e7. 55. R d6 K e1 56. h6 e2 57. K g2 R f7 58. K g3 R e7 59. K g2 R f7 60. R d4 R f2+ 61. K h3 R f3+ 62. K g2 R f2+ 63. K h3 R f3+ 64. K h2 R f2+ 65. K h3 ½ - ½ => Прикрепления: Image 1 |
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