Chess Strategy

by Bogdan Girmacea

The first one to give great contribution about this subject was Aron Nimzovitch in his famous book “My System”. He says that the group mobility of pawns, and not the mobility of one pawn, can become a great fighting instrument, which usually leads to decisive advantage. Why is a mobile group of pawns so important? Because a mobile group of pawns can:

a) control a lot of important squares on the board
b) limit activity of opponent’s pieces
c) give attacking chances to the side that has them
d) give space advantage

But let’s see a concrete example to understand better. I will show you the game Spassky - Petrosian, from the 1966 World Championship.

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by Bogdan Girmacea

Double isolated pawns appear quite often in practice, that’s why I picked this subject. Generally speaking, double isolated pawns can be a strength and a weakness in the same time. Strength because they can control some important squares in the center of the board and a weakness because they can be easily attacked and their general mobility is somehow limited.

In most cases, the side that fights against double isolated pawns has to exchange pieces and to transpose the game into an ending where the weakness of those pawns can be exploited easier.
But in this lesson we will see the strength of double isolated pawns and how the side who posses them should play. I will present a famous game between Portish and Fischer, Tunis 1967, in which after 15 moves in King’s Indian defense the players reached position in following diagram:

1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. d4 0-0 5. Bg2 d6 6. Nc3 Nbd7 7. 0-0 e5 8. e4 c6 9. b3 Qb6 10. Re1 Re8 11. d5 Nc5 12. Rb1 a5 13. Be3 Qc7 14. Bxc5 dxc5 15. dxc6 bxc6

(PGN file for download)
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by Bogdan Girmacea

Download lesson in PGN for your own game viewer.

If in previous lesson we saw how the things could evolve by changing hanging pawns configuration pushing c pawn, in today’s lesson we will analyze what happens after we push d-pawn. And as example I would like to show you the game Korchnoi - Karpov, Merano 1981. The opening was a Queen’s Gambit and after 12 moves we reached the position presented in the diagram:

1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. Rc1 Bb7 9. Be2 Nbd7 10. cxd5 exd5 11. 0-0 c5 12. dxc5 bxc5

We have a typical position with hanging pawns for Black. For the moment the situation is still complex because there are still many pieces on board. So White will try to simplify position and Black will try to complicate game and to prolong middle game as long as possible. As we can see, those hanging pawns controlling d4 and e4 central squares leaves White with less space for maneuver, that’s why White is a bit limited in moves. In this game Korchnoi tried a series of maneuvers to double rooks on d-file and to press over pawn d5, but we will see it won’t be enough. The game continued:

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