Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0

E271.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 0-0
Feb 20, 2026
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TL;DR

White plays a3, forcing Black to give up the bishop pair with ...Bxc3. The doubled c-pawns give Black structural targets while White gets the two bishops and a strong center.

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Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0: A Complete Guide
Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 - Opening Moves
Summary

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 arises after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 0-0 and falls under ECO code E27. With 506 games in the master database, it is a specialized opening choice.

History and Notable Players

It arises from the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 5.bxc3. Among the most prolific practitioners on the White side are Christer Niklasson (5 games), Clara Mourot (5 games), Francisco Jose Perez Perez (4 games). On the Black side, notable exponents include Laszlo Eperjesi (5 games), Ludek Pachman (4 games), Lajos Portisch (3 games).

Statistics

Based on 506 master-level games:

  • White wins: 36%
  • Black wins: 40.3%
  • Draws: 23.7%

Interestingly, Black scores well in this opening, suggesting it offers strong counterplay.

Main Lines and Variations

After 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 0-0, the main continuations include:

Each of these lines leads to distinct types of positions and requires its own understanding of the resulting pawn structures and piece placements.

Common Mistakes to Avoid

  • Neglecting development: In the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0, it can be tempting to make extra pawn moves early on. However, falling behind in development can be punished quickly, especially in open positions where opponent pieces can find active squares.
  • Allowing White to build an overwhelming center: Hypermodern openings allow White space in the center, but you need to strike back at the right moment. Delaying the counterattack too long can leave you without active play.
  • Playing without a plan: Each position in the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 demands a specific approach. Understand whether you should be attacking, defending, or maneuvering before making your move. Random moves lead to random results.
  • Forgetting about piece coordination: Chess pieces are strongest when they work together. A single piece attacking alone is easy to defend against, but coordinated pieces can create unstoppable threats.

Practice on Chessiverse

The best way to learn the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 is through practice. On Chessiverse, you can play chess against computer opponents from any opening or custom position. Our AI bots range from beginner to grandmaster level, each with unique playing styles — from aggressive attackers to solid defenders. Choose a bot that matches your rating and work your way up as you master the opening's key ideas.

Quick Facts

Main Line1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 0-0
FENrnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR w KQ - 1 6
DifficultyExpert
Style

Theoretician openings have deep, well-studied lines where knowledge of specific variations gives a significant advantage. Preparation and memorization of key lines are essential.

506games in database
36%
23.7%
40.3%
White wins Draws Black wins

Top Players

Data from 365chess.com

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Frequently Asked Questions

What is the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0?

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 begins with 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 0-0 and is classified under ECO code E27.

Is the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 good for beginners?

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0 can be played at any level. Beginners should focus on understanding the key strategic ideas rather than memorizing long theoretical lines. Our AI bots at various rating levels provide a great way to practice the opening concepts.

What are the main variations of the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0?

The main continuations include: Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 6.e3; Nimzo-Indian Defence: 1.d4 Nf6 2.c4... Nc6. Each variation leads to distinct types of positions with their own strategic themes.

What are the win rates for the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 0-0?

In a database of 506 master games, White wins 36% of the time, Black wins 40.3%, and 23.7% are drawn. Notable players on the White side include Christer Niklasson and Clara Mourot. On the Black side, Laszlo Eperjesi and Ludek Pachman are among the most frequent practitioners.

Written by

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