

The Nimzo-Indian Defence: 1.d4 Nf6 2.c4... 4.Bg5 arises after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 and falls under ECO code E30. White decides to match Black pin for pin, and the e4 square is once more a no man's land. More subtle is the fact that Black's knight no longer controls d5 either. For that reason, van der Sterren calls the d5 advance "the point but also the necessary consequence of 4. Bg5." 1 Either 4...h6 5. Bh4 c5 6. d5 or 4...c5 5. d5 h6 6. Bh4 is almost always played. 4. Bg5 is a fairly uncommon move against the Nimzo-Indian, being only played by 2% of Masters on the lichess opening database. With no black pawn on d5 white isn't threatening to win it like he often is against the Ragozin or Queen's Gambit Declined. With 3,581 games in the master database, it is a specialized opening choice.
History and Notable Players
It arises from the Nimzo-Indian Defense. Among the most prolific practitioners on the White side are Boris V Spassky (30 games), Guntram Gaertner (28 games), Lluis Comas Fabrego (26 games). On the Black side, notable exponents include Wolfgang Unzicker (8 games), Gyula Sax (8 games), Viktor Korchnoi (7 games).
Statistics
Based on 3,581 master-level games:
- White wins: 32.6%
- Black wins: 38.1%
- Draws: 29.3%
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.Bg5, 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... 4.Bg5, 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... 4.Bg5 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... 4.Bg5 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.



