Nimzo-Larsen Attack: The Complete Guide
The Nimzo-Larsen Attack (the Larsen's Opening) — its main lines, the plans for both sides, and how to tell whether it fits your style.
Starting position and moves
The Nimzo-Larsen Attack (also known as the Larsen's Opening) is an opening for White, classified under ECO codes A01. It begins with:
The idea behind the Nimzo-Larsen Attack
White fianchettoes the queen bishop to b2 immediately, aiming it down the long a1-h8 diagonal at e5 and the heart of Black's position before committing any central pawns. The move order is deliberately flexible — White can follow up with e3 and a quiet game, or e4 and c4 for a more central, English-like set-up, deciding the plan only after seeing how Black responds.
Main lines and key variations
| Variation | Moves |
|---|---|
| Classical set-up vs ...e5 | 1.b3 e5 2.Bb2 Nc6 3.e3 Nf6 |
| Reversed Owen's (main line) | 1.b3 Nf6 2.Bb2 e6 3.e3 c5 4.Nf3 |
| e4 central set-up | 1.b3 d5 2.Bb2 Nc6 3.e3 Nf6 |
Classical set-up vs ...e5: Black takes the center with 1...e5; White fianchettoes anyway with Bb2, keeping long-term pressure on the diagonal once the c-pawn eventually moves, and develops normally with e3 and Nf3.
Reversed Owen's (main line): A calm main line: White develops naturally with Bb2, e3, and Nf3, keeping options open for c4 or d4 depending on Black's structure.
e4 central set-up: White supports a later e4 break with e3 and Nf3/Nd2, aiming for active piece play against Black's center rather than a pure flank strategy.
Plans for both sides
White's plans
- Pressure e5 and the long diagonal with the fianchettoed bishop on b2.
- Choose between a quiet e3 set-up and a more central e4/c4 approach based on Black's replies.
- Develop flexibly with Nf3, e3, Be2 or g3/Bg2, delaying commitments in the center.
Black's plans
- Defend e5 solidly with ...Nc6 or ...d6 before the bishop can exploit it.
- Occupy the center with ...d5 and ...e5 or ...c5, challenging White's flank strategy directly.
- Develop naturally and meet a later e4 with ...d4 or ...dxe4 counterplay.
Typical pawn structure
Because White delays central pawn moves, the resulting structures vary widely — from Reversed Owen's-style set-ups to English or Catalan-like structures with colours reversed. The b2-bishop is the one constant, pressuring the long diagonal for the entire game, which makes piece placement matter more than any single fixed pawn skeleton.
Famous practitioners
The Nimzo-Larsen Attack has been championed by Bent Larsen, Aron Nimzowitsch (who pioneered similar hypermodern ideas), Magnus Carlsen. Larsen–Spassky, USSR vs Rest of the World, Belgrade 1970: Larsen defeated the reigning world champion with his namesake opening in one of the most famous games of the legendary team match.
Strengths and weaknesses
Who should play the Nimzo-Larsen Attack?
Players who enjoy hypermodern strategy and flexible move orders over memorised theory, especially those already comfortable with the English Opening or Réti-style flank play. It rewards patience and positional understanding rather than sharp calculation.
See how you actually play the Nimzo-Larsen Attack
Reading about an opening is one thing; knowing whether you handle it well is another. Chess DNA analyzes your real Chess.com and Lichess games with Stockfish, then shows you exactly where you go wrong — including which openings and pawn structures cost you the most rating. Instead of guessing whether the Nimzo-Larsen Attack suits you, you get a data-backed answer from your own games, plus targeted drills on the specific mistakes you keep repeating. It is free to analyze your first games.
Frequently Asked Questions
What is the idea behind the Nimzo-Larsen Attack?
The move 1.b3 immediately develops the queen bishop to b2, aiming it at e5 and the long diagonal before White commits any central pawns. This delays the fight for the center in favour of piece pressure, letting White choose a plan — e3 and a quiet game, or e4/c4 and a more central approach — based on how Black responds.
Is 1.b3 a good opening for beginners?
It can work well for beginners who want to avoid memorising heavy opening theory, since the fianchetto set-up is simple to understand and flexible against almost any Black reply. However, it teaches less about classical center occupation than 1.e4 or 1.d4, so it is often better as a secondary weapon alongside a more standard opening.
Why is it called the Nimzo-Larsen Attack?
The opening is named for both Aron Nimzowitsch, whose hypermodern writings championed controlling the center with pieces rather than pawns, and Bent Larsen, who popularized 1.b3 at the top level in the 1960s and 70s, most famously defeating world champion Boris Spassky with it in 1970.
