Nimzo-Indian Defense

The Nimzo-Indian Defense is a sophisticated opening that begins with:

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

Key Ideas

The Nimzo-Indian Defense aims to:

• Pin the c3 knight immediately
• Control the e4 square
• Damage White's pawn structure if needed
• Develop pieces actively

Main Variations

Rubinstein Variation

White plays 4. e3, maintaining a solid structure.

Classical Variation

After 4. Qc2, White prevents doubled pawns.

Sämisch Variation

With 4. a3, White forces the bishop to make a decision.

Strategic Themes

1. Pin Tactics: The Bb4 pin is the key feature
2. Doubled Pawns: Black may double White's c-pawns
3. Central Control: Piece control over e4 is crucial
4. Dynamic Play: Active piece play compensates for structural concessions

Tips for Players

• Understand when to take on c3
• Study the typical pawn structures
• Know your piece placement patterns
• Be flexible with your plans

The Nimzo-Indian is a favorite among world champions for its strategic richness.