A01

Nimzo-Larsen Attack

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Overview

Nimzo-Larsen Attack is one of the foundational chess openings, sitting at the root of an entire branch of theory under ECO code Flank Openings in the A01 group.

The Flank Openings group covers flank openings — systems that delay the central pawn break and instead develop pieces and pawns on the wings.

It is reached after 1 ply of play, with the move sequence 1. b3.

It is the root of 7 named variations, with Classical Variation, Dutch Variation, English Variation, and others among the most studied.

In total, the branch covers 14 sub-variations across all depths.

Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.

ECO code
A01
Group
Flank Openings (A)
Plies
1
Direct variations
7
Total in subtree
14

This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.

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Variations (7)

Show all 14 sub-variations (full subtree)