Nimzo-Indian Defense
Initial Moves: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4
Strategic Summary & Main Idea
The Nimzo-Indian Defence pins the c3 knight on move three and, with it, takes the e4 advance away from White before it exists. The position after 3...Bb4 measures +0.22, and the interesting data in this entry is in the replies: the Capablanca Variation with 4.Qc2 drops to +0.06, the Sämisch with 4.a3 to +0.03, and the Leningrad with 4.Bg5, measured in its main line, reaches −0.22 — Black better. It is the defence Nimzowitsch built to prove that controlling a square beats occupying it, and the engine agrees: none of the four most played replies gives White back the advantage of moving first.
The pawn structure this opening produces
The Nimzo-Indian does not have one structure, it has four, and choosing between them is the decision that shapes the game. The first appears when Black plays ...Bxc3+ and White recaptures with the pawn: doubled pawns on c3 and c4, the bishop pair for White, and a black plan that amounts to blocking the centre and attacking the c4 pawn with ...b6, ...Ba6 and ...Nc6. As long as White's centre does not advance, the bishops are worth nothing and the doubled pawns are targets; if White gets in e4 and f3, the structure becomes a phalanx and the bishops find their diagonals. The second structure is the isolated d4 pawn, which arises in lines with ...c5 and central exchanges: there White plays on the e5 square and Black on the d5 blockade. The third is the Hübner, where Black locks the centre with ...e5 and ...d6 and leaves White's bishops without a single open diagonal. The fourth is the Capablanca, where White spends a tempo on a3 to recapture with the queen and avoid the doubled pawns — and that is exactly why the line measures less: the tempo buys a clean structure and hands back the initiative. That trade-off is the whole economy of the defence.
Typical Plans for White
- Play the Rubinstein with 4.e3, develop with Bd3 and Nf3 and look for e4 at the right moment; it is the highest-measuring line here at +0.30
- Avoid the doubled pawns with 4.Qc2, at the cost of a tempo — the position drops to +0.06
- Force the issue with 4.a3 and accept the doubled structure in return for the bishop pair and the e4 break
- Prepare e4 head-on with 4.f3, giving up two moves of development, which measures +0.13
- Choose 4.g3, the most positional line of the set and the second-highest evaluation in this entry
Typical Plans for Black
- Trade on c3 only when the trade creates doubled pawns that e4 cannot undo
- Attack the c4 pawn with ...b6, ...Ba6 and ...Nc6, Nimzowitsch's pure plan against the doubled structure
- Lock the centre with ...c5, ...d6 and ...e5 in the Hübner setup, leaving White's bishops without a diagonal
- Keep control of e4 with ...d5 and ...Ne4 while White has not settled his development
- Against 4.Bg5, answer ...h6 and ...c5 and head for the line that measures −0.22, the best in this entry for Black
Main Variations of the Nimzo-Indian Defense
| Variation | Move Sequence | Evaluation | Style / Characteristic |
|---|---|---|---|
| Rubinstein Variation (4.e3) | 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 |
+0.30 | The most played line in the history of master chess; solid development and a flexible centre |
| Capablanca Variation (4.Qc2) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 O-O 5.a3 Bxc3+ 6.Qxc3 b6 7.Bg5 Bb7 |
+0.06 | Pays a tempo to recapture with the queen and keep the structure clean |
| Sämisch Variation (4.a3) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3 Nc6 7.Bd3 O-O |
+0.03 | The bishop pair against doubled pawns; the defence's oldest imbalance |
| Leningrad Variation (4.Bg5) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6 7.e3 Bxc3+ 8.bxc3 e5 |
−0.22 | Pin against pin; in the main line, the engine gives Black the better game |
| Kmoch Variation (4.f3) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 Nxd5 |
+0.13 | Prepares e4 before developing; ambitious and slow at the same time |
| Three Knights (4.Nf3) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 Nc6 6.Bg2 O-O |
+0.21 | Postpones the decision about the pinned bishop and keeps every transposition open |
| Romanishin Variation (4.g3) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.g3 c5 5.Nf3 Ne4 6.Qd3 cxd4 7.Nxd4 Qa5 |
+0.32 | Fianchetto and pressure on the long diagonal; the highest evaluation measured here |
| Hübner setup (4.e3 c5 5.Bd3 Nc6) | 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6 |
+0.12 | A centre locked by ...d6 and ...e5; White's bishops are left without a single diagonal |
Evaluations measured by us with Stockfish 19, depth 22, on 14/09/2026.
Frequently asked questions
Why is the Nimzo-Indian considered the soundest defence to 1.d4?
Because it stops e4 before the advance exists, and forces White to choose between structure and tempo as early as move four. The numbers show the cost of that choice: 4.Qc2 avoids the doubled pawns and drops to +0.06; 4.a3 accepts them and drops to +0.03. None of the main replies preserves the advantage of moving first.
Is it worth giving up the bishop pair with ...Bxc3+?
It is worth it when the trade leaves doubled pawns White cannot undo with e4 — and not before that. Trading early, without having forced a3, is expensive: the position rises to +0.85, because White ends up with the bishops, the tempo and the centre all at once.
Which white reply causes Black the most trouble?
By the numbers measured here, 4.g3 (+0.32) and the Rubinstein with 4.e3 (+0.30) deliver the most. The Leningrad with 4.Bg5 is the one that works least: in the main line, with ...h6 and ...c5, the position measures −0.22 in Black's favour — and the same setup without ...h6 becomes +1.07, which shows that move order there is everything.
Guides on this opening
- The Bogo-Indian Defence: the b4 check against 1.d4, with plans and the cost measured
- Grünfeld Defence: the Exchange Variation and the immediate ...Qa5 pressure
- Nimzo-Indian Defence: the Rubinstein Variation and the ...Ba5 trap
- Catalan Opening: a practical guide to the Open and Closed Catalan, with the cost of each move measured
Common Mistakes & Where Most Amateurs Go Wrong
- 01 Trading on c3 without having provoked a3. Without that spent tempo, the doubled pawns arrive alongside free development and the e4 break comes quickly: the position goes from +0.22 to +0.85. The line:
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 Bxc3+ 5.bxc3 d6 6.Bd3 e5 7.Ne2 O-O+0.85 - 02 Bringing the queen to f5 to force trades in the Capablanca. After 9.Qxf5 exf5 Black has doubled f-pawns and no compensation; the structure Black meant to inflict on White ends up being his own. The line:
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 Qxd5 6.e3 c5 7.a3 Bxc3+ 8.bxc3 Qf5 9.Qxf5+0.41 - 03 Pushing ...e5 early against the Leningrad without having played ...h6 first. The g5 bishop keeps pinning the f6 knight with the centre already closed, and the difference is more than a pawn: the same variation with ...h6 measures −0.22, and this one measures +1.07. The line:
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 c5 5.d5 e5 6.e3 d6 7.Bd3 Nbd7 8.Nge2+1.07
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