Nimzo-Indian Defence

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Nimzo-Indian Defence

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Nimzo-Indian Defence
Solid white.svg a b c d e f g h Solid white.svg
8 black rook black knight black bishop black queen black king black king black king black rook 8
7 black pawn black pawn black pawn black pawn black king black pawn black pawn black pawn 7
6 black king black king black king black king black pawn black knight black king black king 6
5 black king black king black king black king black king black king black king black king 5
4 black king black bishop white pawn white pawn black king black king black king black king 4
3 black king black king white knight black king black king black king black king black king 3
2 white pawn white pawn black king black king white pawn white pawn white pawn white pawn 2
1 white rook black king white bishop white queen white king white bishop white knight white rook 1
Solid white.svg a b c d e f g h Solid white.svg
Moves 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
ECO E20-E59
Origin Englisch - Blackburne, London 1883
Named after Aron Nimzowitsch
Parent Indian Defence
Chessgames.com opening explorer

The Nimzo-Indian Defence is a chess opening characterised by the moves:

1. d4 Nf6
2. c4 e6
3. Nc3 Bb4

Other move orders, such as 1.c4 e6 2.Nc3 Nf6 3.d4 Bb4, are also feasible. In theEncyclopaedia of Chess Openings scheme, the Nimzo-Indian is classified as E20-E59.

This hypermodern opening was developed by Grandmaster Aron Nimzowitsch who introduced it to master-level chess in the early 20th century. Unlike most Indian openings the Nimzo-Indian does not involve an immediate fianchetto, although Black often follows up with ...b6 and ...Bb7. By pinning White's knight Black prevents the threatened 4.e4 and seeks to inflictdoubled pawns on White. White will attempt to create a pawn centre and develop his pieces to prepare for an assault on the Black position.

Black's delay in committing to a pawn structure makes the Nimzo-Indian (sometimes colloquially referred to as the "Nimzo") a very flexible defence to 1.d4. It can also transpose into lines of the Queen's Gambit or Queen's Indian Defence. The Nimzo-Indian is a highly respected defence to 1.d4, is played at all levels and has been played by every world champion since Capablanca. White often plays 3.g3 or 3.Nf3 to avoid the Nimzo-Indian, allowing him to meet 3.Nf3 Bb4+ (the Bogo-Indian Defence) with 4.Bd2 or 4.Nbd2, rather than 4.Nc3.

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[edit]General considerations

Solid white.svg a b c d e f g h Solid white.svg
8 black king black king black rook black rook black king black king black king black king 8
7 black pawn black king black king black king black king black king black king black pawn 7
6 black bishop black pawn black king black king black pawn black king black pawn black king 6
5 black knight black king black pawn black king white pawn black pawn black king black knight 5
4 black queen black king white pawn black king black king white pawn black king black king 4
3 white pawn black king white pawn white bishop white knight black king white bishop black king 3
2 white queen black king black king black king black king black king white pawn white pawn 2
1 black king black king black king white rook white rook black king white king black king 1
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M.Botvinnik-S.Reshevsky,
The Hague/Moscow 1948
Position after 24.Qe2-a2

In the Nimzo-Indian, Black is generally prepared to concede the bishop pair by playing ...Bxc3. As dynamic compensation, he often doubles White's c-pawns, which represent a static weakness, and gains play against the central light squares d5 and e4, even in those instances where White is able to recapture with a piece after ....Bxc3. Black will aim to close the position to reduce the scope of White's bishops. To this end, Black must blockade the white pawn centre from advancing and neutralise White's attacking chances on the kingside. An example of Black's strategy carried out successfully is the classic game Mikhail Botvinnik - Samuel Reshevsky from the 1948 World Championship Match-Tournament, which reached the position in the diagram after White's 24th move.

Earlier in the game, Reshevsky was able to block White's kingside attack by playing ...Nf6-e8 and ...f7-f5. Now, both White's bishops are reduced to defence, and White's queen must go to the miserable a2-square to defend both the pawns on a3 and c4. Without any prospects for counterplay, White's game is strategically hopeless, and Black ultimately exchanged queens and won the endgame.

[edit]Rubinstein System 4.e3

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