Nimzo-Indian Defense

What is the Nimzo-Indian Defense?

The Nimzo-Indian Defense arises after 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4. Instead of fighting for the centre with pawns, Black pins the knight on c3 and so restrains White's plan of playing e4. You are often happy to give up the bishop pair with ...Bxc3 if it leaves White with doubled c-pawns, so the opening is a negotiation between pawn structure and bishops. Named after Aron Nimzowitsch, it is one of the most respected defences to 1.d4 at every level: positional in character, but full of tension and counterplay.

Main ideas and plans

Your main ideas are control of e4, quick castling and a flexible choice between ...d5, ...c5 and ...b6. The most common reply is the Rubinstein System with e3. In the Normal Variation, 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O, you play in classical style, often taking on c4 or adding ...Nc6, and the Gligoric System lines revolve around whether White ends up with an isolated pawn or hanging pawns. The Hübner Variation, 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6, is the purest form of the idea: you double White's pawns, close the centre with ...e5 and aim your pieces at the weak c4 pawn.

In the Classical Variation, 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2, White avoids doubled pawns by recapturing on c3 with the queen. You choose between simple castling, the Noa Variation with ...d5 and the Berlin Variation with ...c5; you must play actively, since White keeps a healthy structure. The Sämisch Variation, 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3, forces the trade at once. White gets the bishops and a broad centre, and you answer with ...c5, ...b6, ...Ba6 and ...Nc6-a5 to besiege c4, while watching for White's f3 and e4 push.

Who is it for?

The Nimzo-Indian suits players who enjoy strategic battles, who understand that structure and piece activity can outweigh the bishop pair, and who want a sound, lasting defence. It demands real study, because White has several very different fourth moves and each needs its own plan. The main risk is drifting into a passive position in which White's bishops slowly take over, so learn when to trade on c3 and when to keep your bishop. Start with one solid answer to e3, one to Qc2 and the typical plans against doubled c-pawns.