Nimzo-Indian Defense

ECO Code: E20

Overview

The Nimzo-Indian Defense is one of the most respected openings in chess, where Black develops the bishop to b4, pinning White's knight and creating pressure on the e4 square. It's known for its rich strategic possibilities and complex middlegame positions.

Main Line

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4

Key Strategic Themes

  • Bishop pin on knight
  • Control of e4 square
  • Queenside expansion
  • Central tension
  • Minority attack

Typical Tactical Motifs

  • Bishop pressure
  • Queenside expansion
  • Central control
  • Minority attack
  • Endgame advantages

Main Variations

Rubinstein Variation

ECO: E41-E59

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3

The main line of the Nimzo-Indian Defense, where White develops the bishop to e3, creating a solid pawn structure.

Key Ideas:

  • Control of e4 square
  • Queenside expansion
  • Minority attack
  • Central tension
  • Piece coordination

Typical Plans:

  • Minority attack on queenside
  • Central pawn breaks
  • Kingside counterplay
  • Piece pressure on long diagonal
  • Endgame advantages

Common Traps:

Rubinstein Trap
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 Nb6 10.Bb3

White exploits Black's exposed knight position with a tactical bishop move.

Sämisch Variation

ECO: E80-E89

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3

A sharp line where White plays 4.f3, creating a strong pawn center but weakening the kingside.

Key Ideas:

  • Pressure on e4 square
  • Queenside counterplay
  • Central tension
  • Piece pressure
  • Tactical opportunities

Typical Plans:

  • Queenside expansion
  • Central counterplay
  • Piece coordination
  • Minority attack
  • Endgame advantages

Common Traps:

Sämisch Trap
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 Nxd5 8.dxc5 f5 9.e4

White exploits Black's exposed knight position with a tactical pawn move.

Quick Facts

  • ECO Code: E20-E59
  • Popularity: Very Common
  • Difficulty: Advanced
  • First Played: 1914
  • Named After: Aron Nimzowitsch

Famous Practitioners

  • Aron Nimzowitsch
  • Bobby Fischer
  • Anatoly Karpov
  • Garry Kasparov
  • Magnus Carlsen

Recommended Resources

Books

  • "The Nimzo-Indian Defence" by John Emms (2014)

Online Courses

    Related Lines

    Nimzo-Indian, Rubinstein Variation

    ECO: E41

    White plays 4.e3, leading to complex positions.

    Classic Games

    Bobby Fischer vs Boris Spassky

    1972

    A brilliant display of Nimzo-Indian Defense strategy in the World Championship.

    Study Game →

    Garry Kasparov vs Anatoly Karpov

    1985

    A classic game showcasing the power of the Nimzo-Indian Defense in the World Championship.

    Study Game →
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