Nimzo–Larsen Attack: Modern Variation (1. b3 e5 · A01)

ECO A01 · Vol.24 · Ch.2 · 1. b3 e5 2. Bb2 Nc6

EPD: r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq - · Eval +0.08

Forged by Aron Nimzowitsch and carried to elite tournament triumphs by Danish legend Bent Larsen—and today a blitz staple for Hikaru Nakamura and Magnus Carlsen—the Nimzo–Larsen Attack (A01: 1. b3 e5 2. Bb2 Nc6) places White's dark-squared bishop on b2 on move two. Completely distinct from 1. f4 Bird setups, White lasers e5 and g7 down the a1–h8 diagonal while preparing 3. e3 + Bb5 or 3. c4.

After 1. b3 e5 2. Bb2 Nc6, play 3. e3! so your f1-bishop can leap to b5—pinning the c6-knight that defends e5 and putting immediate heat on Black's center!

Historical Origins & Pawn-Structure DNA

Henry Bird (1855 London), Bent Larsen & Tartakower's Creative Laboratory · Reversed Dutch f4 Clamp, a1–h8 b2-Bishop Laser & Uncharted Flank Grids · Henry Edward Bird, Bent Larsen, Savielly Tartakower, Hikaru Nakamura, Baadur Jobava

Danish legend Bent Larsen defeated a parade of World Champions in the 1960s and 1970s with 1. b3, while Tartakower playfully dubbed 1. b4 the 'Orangutan Opening' after visiting the Bronx Zoo during the 1924 New York tournament.

In 1. b3, White's dark-squared bishop on b2 rules the a1–h8 diagonal and fights fiercely for e5 alongside Nf3; in Bird's 1. f4, White plays a Reversed Dutch with an extra move, clamping e5 and coordinating b3–Bb2 with kingside attacks.

White's Strategic Blueprint

Nimzowitsch's Pin Plan (3. e3!): threaten 4. Bb5! immediately to pin Nc6 and win the e5-pawn, following up with Nf3 and d4 (or c4) to crack Black's center.
Larsen's English Hybrid (3. c4 Nf6 4. e3 or 4. Nf3): build a Hedgehog/Sicilian-reversed clamp on d5 while keeping Bb2 trained at e5 and g7.
When Black pushes ...e4 against Nf3, hop Nd4! centralizing the knight while reopening the glorious a1–h8 diagonal toward g7!

Black's Counterplay & Breaks

Classical Two-Pawn Center: play ...Nf6 and ...d5! (after 3. e3 Nf6 4. Bb5 Bd6!), guarding e5 solidly before castling and rolling ...Bg4/...Qe7.
Fianchetto Counter: answer 3. c4 with 3...Nf6 and 4...g6 + ...Bg7 (or ...d5 cxd5 Nxd5), neutralizing White's flank play symmetrically.
Avoid overextending ...d5 + ...e4?! until pieces support it, keeping e5 securely anchored by ...Bd6 or ...d6.

Common Club Traps & Mistakes

Playing 3. e3 d5?! 4. Bb5 Bd7?! passively lets White capture 5. Bxc6 Bxc6 6. Bxe5! winning a clean central pawn while hitting g7!
As White, rushing f2–f4?! after 2...Nc6 (for instance 3. f4?! exf4!) hands Black's queen and bishop dangerous access to the weakened e1–h4 diagonal.

Canonical ECO Sub-Variations

A01 Nimzo-Larsen Attack: Modern Variation: 1. b3 e5 2. Bb2 Nc6 (r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq -)
A06 Nimzo-Larsen Attack: Norfolk Gambit: 1. Nf3 d5 2. b3 Nf6 3. Bb2 c5 4. e4 (rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq e3)
A00 Mieses Opening: Venezolana Variation: 1. d3 c5 2. Nc3 Nc6 3. g3 (r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq -)
A00 Van't Kruijs Opening: Bouncing Bishop Variation: 1. e3 e5 2. Bc4 b5 3. Bb3 (rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq -)
A01 Nimzo-Larsen Attack: Modern Variation: 1. b3 e5 2. Bb2 Nc6 3. e3 (r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq -)
A01 Nimzo-Larsen Attack: Pachman Gambit: 1. b3 e5 2. Bb2 Nc6 3. f4 (r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq f3)

FAQ

How does 1. b3 (Nimzo–Larsen) differ fundamentally from 1. f4 (Bird) and 1. b4 (Polish)?

Unlike 1. f4, 1. b3 keeps White's kingside completely intact without loosening e1–h4; unlike 1. b4, the b3-pawn never becomes an exposed hook for Black's ...a5 or ...Bxb4 tactics!

Why is 3. e3 followed by 4. Bb5 so venomous against careless club opponents?

Because Black's c6-knight is the ONLY defender of e5! Pinning it with Bb5 threatens Bxc6 + Bxe5 immediately, forcing accurate defense like ...Bd6 or ...d6.

What happens if Black pushes ...e4 to block the b2-bishop after White plays Nf3?

White welcomes it! After Nf3 e4, 5. Nd4! places a dominant knight in the center AND reopens the entire a1–h8 sniper diagonal straight at g7!

Grandmasters Who Weaponized This Technique

Hikaru Nakamura (USA · 2816 FIDE · #2) — 5× U.S. Champion · 2816 Peak & Modern Chaos / Defense Wizard
Gukesh Dommaraju (IND · 2794 · Champ at 18) — 18th World Champion · Youngest Undisputed World Champion in History

A03 · Bird's Opening: Reversed Dutch & Lasker Line (1. f4 · A03) · A00 · Polish / Sokolsky Opening: Czech Defense (1. b4 · A00) · A00 · Dunst / Van Geet Opening: Pfeiffer Gambit (1. Nc3 · A00) · Queen vs Rook: Breaking the R+P Fortress