Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6

+14%
E431.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6
Feb 20, 2026
Play this opening as...
TL;DR

White plays e3, the classical Rubinstein system that accepts potential doubled pawns in exchange for smooth development. The positions are rich in strategic nuance.

Written by

Chessiverse
Chessiverse TeamOpening Guides

Expert chess content backed by opening theory and our database of 600+ AI bots with unique playing styles and opening repertoires.

Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6: A Complete Guide
Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 - Opening Moves
Summary

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 arises after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 and falls under ECO code E43. With 294,460 Lichess games across all rating levels, it is a specialized opening choice.

History and Notable Players

It arises from the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 4.e3. Among the most prolific practitioners on the White side are Svetozar Gligoric (55 games), Aleksej Aleksandrov (26 games), Vladimir Georgiev (26 games). On the Black side, notable exponents include Nick E De Firmian (41 games), Oleg M Romanishin (31 games), Chris G Ward (27 games).

Statistics

Based on 293,793 Lichess games across all rating levels:

  • White wins: 48%
  • Black wins: 46.2%
  • Draws: 5.7%

The statistics show a roughly balanced opening where both sides have equal chances.

Main Lines and Variations

After 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6, 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

  • 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.

Practice on Chessiverse

The best way to learn the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 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.e3 b6
FENrnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - 0 5
DifficultyAdvanced
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.

294,460games on Lichess
48%
5.7%
46.2%
White wins Draws Black wins

Top Players

Data from Lichess opening explorer (blitz & rapid)

Most Popular At2500
SharpnessBalanced

Popularity by Rating

Percentage of all games at each rating bracket that feature this opening.

Data from Lichess opening explorer (blitz & rapid games)

Theory Adherence by Rating

How often players choose the single most popular move at this position. Higher = more predictable play.

White to move after the opening line

Popularity Over Time

Share of all Lichess blitz + rapid games featuring this opening, by year.

Top Moves by Rating

White to move after the opening line

RatingMost Popular2nd3rd
400Bd236.8%a323.4%Nf318.2%
1000Bd239.3%Nf318.3%a317.4%
1200Bd234.1%Nf323.3%a316.1%
1400Nf327.9%Bd223.1%a316.4%
1600Nf331.1%Bd323.5%Bd215.3%
1800Bd332.7%Nf328.1%Ne214.2%
2000Bd336.7%Ne228.2%Nf319.8%
2200Ne247.2%Bd333.7%Nf38.9%
2500Ne255.3%Bd327.7%Bd27.9%

Popularity by Time Control

Bullet
<0.01%131K
Blitz
<0.01%260K
Rapid
<0.01%34K
3% more decisive in bullet
Play this opening as...

Frequently Asked Questions

What is the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6?

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 begins with 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 and is classified under ECO code E43.

Is the Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 good for beginners?

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... b6 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... b6?

The main continuations include: Nimzo-Indian Defence: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Nge2. 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... b6?

Across 294,460 Lichess games, White wins 48% of the time, Black wins 46.2%, and 5.7% are drawn. Notable master practitioners on the White side include Svetozar Gligoric and Aleksej Aleksandrov. On the Black side, Nick E De Firmian and Oleg M Romanishin are among the most frequent practitioners.

Written by

Chessiverse
Chessiverse TeamOpening Guides

Expert chess content backed by opening theory and our database of 600+ AI bots with unique playing styles and opening repertoires.

Practice This Opening on Chessiverse

Play against 600+ AI bots with unique personalities and opening repertoires. From beginner-friendly to grandmaster-level opponents, find the perfect sparring partner for any opening.

Play Now
Back to Articles