|Alekhine (left) vs Bogoljubov (right). Image from Wikipedia|
Alekhine has studiously annotated his games, and I will adopt some of them in the following analysis.
Alexander Alekhine vs Efim Bogoljubov
1. d4 d5
2. c4 e6
3. Nf3 Nf6
4. g3 dxc4
5. Qa4+ Qd7
"The exchange of Queens that Black will force with this maneuver gives him very few advantages, because it does not solve the chief problem, which is the development of the queen's bishop." --Alekhine
6. Qxc4 Qc6
7. Nbd2 Qxc4
8. Nxc4 Bb4+
9. Bd2 Bxd2+
10. Ncxd2 Nc6
11. Bg2 Bd7
12. O-O O-O-O
12... O-O is an alternative I looked at. 13. Nc4 Nd5 14. Nce5 Nxe5 15. Nxe5 Bb5 16. Rfe1 c6 17. a4 Ba6 18. Rac1 (D)
|Position after 18. Rac1|
In this variation, White appears to be better, with his d5 knight and a potential outpost on c4 for his rook. Black, however, also has a nice position, and can chase away the offending knight before going for a central push. For example, play can continue: Rfe8 19. Bxd5 exd5 20. e3 and if Black can get his bishop into the centre, he will have very good control of the light squares.
Returning to the main line after 12... O-O-O:
With both sides castled on opposite wings, Alekhine starts preparing for a Queenside attack, while Bogoljubov plans for a central advance.
13... Nd5 looks strong, but after 14. e4 Nb6 (14... Ndb4? 15. a3 Nd3 16. Rc2 f5 17. e5 Black will find it difficult to continue his attack, while White threatens Rd1 followed by Nc4 attacking Black's knight.) 15. Nc4 Nxc4 16. Rxc4 f6 17. Rfc1 e5? White simply replies 18. d5! and Black is in trouble!
A better variation is the immediate central thrust: 13... e5 14. dxe5 (Stronger than 14. d5 Nxd5 15. Nxe5? Nxe5 16. Bxd5 Bh3! where Black wins a piece) 14... Ng4 15. Nc4 Be6 16. Ng5 Bxc4 17. Rxc4 Ncxe5 18. Rc2 f6 19. Ne4 Kb8 (D)
|Position after 19... Kb8|
Although White still has a powerful fianchettoed bishop, Black has his pieces well-positioned on the Kingside, and can seek counterplay on that wing. Even after something like 20. h3, Black can still reply 20... Nh6 preparing Nf5-Nd4.
Returning to the position after 13... Rhe8:
"It goes without saying that White will not allow e5" --Alekhine
15. a3 Be8
Black's past few moves were directed towards connecting the rooks, and putting pressure on the d4 pawn so as to discourage a d5 advance should Black play e5. Now White is forced to respond to this threat. On the other hand, after 15... Rde8 16. Nce5 Nxe5 17. Nxe5 White's centralized knight becomes very strong.
16. Rfd1 Nd5!
Apart from bringing the knight to b6, Nd5 also frees Black to play f6/f5, advancing on the kingside and getting his bishop back into the game.
17. b4 Nb6
18. b5 (D)
|Position after 18. b5|
If White were to mess up the order of moves and exchange knights first: 18. Nxb6+ axb6 19. b5 Black's knight will now have a good place to hide with 19... Na5,
Why would Bogoljubov choose the passive path over here? Now Alekhine is free to launch an energetic attack.
18... Nxc4 seemed like a better option; 19. bxc6 (19. Rxc4 Na5 20. Ra4 b6 21. Rb4 Rd5 Black should be ok here too) 19... Na5 (19... Nxa3? 20. cxb7+ Kxb7 21. Ne5+ Kc8 22. Nc6 Bxc6 23. Bxc6 Rd6 24. Rc3 and White wins) 20. Ne5 Rd6 21. cxb7+ Nxb7 22. Rb1 Rb6 Black should be able to hold out better in this position.
19. Nxb6+ axb6
20. a4 f6
Black hopes to push e5 as part of his counterplan. If 20... f5 White replies Ne5!
But White finds ways to tie down his opponent!
Now Black is forced to free up his cramped position and postpone e5. "What follows now is practically all forced"-- Alekhine.
If 22... e5 White plays 23. Nc4, threatening Nxb6#
23. Bg2 c6
24. Nc4 (D)
|Position after 24. Nc4|
In Part 4 of our "How to Attack" series, we talked about how a pawn assault against the castled king is effective only with sufficient support from the pieces. Here, we see how White's pieces and pawns are coordinated in this united offensive, while Black's pieces have been squeezed into a fatal corner.
There is now no defense to the threat of d5, after which Black's position falls apart.
26. axb5 Bxb5
27. d5 exd5 (D)
|Find the best move for White|
27... Kd8 28. Nd6 Bd7 29. Nxb7+ is also crushing.
Now, find the best move for White!
As explained in "How to Attack" Part 3, opening up files against the enemy king-- with your rooks in action-- is decisive. Now, the discovered attack seals the fate for Black.
29. exd5 Rd7
30. Nb5+ Kd8
31. dxc6 bxc6
32. Nd4 (D)
|Position after 32. Nd4|
Hopefully you have a better appreciation for the art of attack in chess after looking through this game. Truly a masterpiece by Alekhine!
How to Attack Part 1: http://nushsblackknights.blogspot.com/2013/08/how-to-attack-part-1.html
How to Attack Part 2: http://nushsblackknights.blogspot.com/2013/08/how-to-attack-part-2.html
How to Attack Part 3: http://nushsblackknights.blogspot.com/2013/08/how-to-attack-part-3.html
How to Attack Part 4: http://nushsblackknights.blogspot.com/2013/09/how-to-attack-part-4.html
How to Attack Part 5: http://nushsblackknights.blogspot.com/2013/09/how-to-attack-part-5.html