Chessy
Nimzo-Larsen Attack: Modern Variation with Ba3 — Black Strikes Back
If you enjoy sharp, forcing lines where Black seizes the initiative early, the Nimzo-Larsen Attack: Modern Variation with 3.Ba3 is exactly what you're looking for — from the other side. White's early bishop sortie to a3 tries to disrupt your natural development, but you have a simple and devastating reply: take it. The statistics speak for themselves: after 1.b3 e5 2.Ba3 Bxa3, Black scores a commanding 53.6% win rate across over 56,000 games, while White manages only 41.8%. Stockfish evaluates the position at -1.24 — a clear, lasting advantage for you. Below the interactive drill, you'll see exactly why this trade works and how to keep the pressure on.
Play the Nimzo-Larsen Attack: Modern Variation: Ba3 against the engine
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Create a free account →Why 3.Ba3 Is More Annoying Than Dangerous
At first glance, 2.Ba3 looks tricky — the bishop pins your f8-bishop against your queen, daring you to misplace a piece. But the correct response is brutally simple: 2...Bxa3. You trade your bishop for White's, and the key detail is that White must recapture with the knight (3.Nxa3), not the queen or a pawn. Why? Because after 3.Nxa3, White's knight is awkwardly placed on the rim, and White has lost the bishop pair while you still have yours. The position opens up in your favour. Stockfish rates this -1.24 in Black's favour — a substantial, lasting edge. In plain terms, you are clearly better right from move three.
The Only Good Move: 3.Nxa3 — And What You Do Next
In over 55,000 games, White's almost automatic reply is 3.Nxa3 — and for good reason. The engine's best continuation after that is 3...Qe7, attacking the loose knight and forcing it back to b1: 4.Nb1 d5. This sequence is the backbone of your strategy. You develop the queen to a strong central square, gain tempi by harassing the knight, and follow up with the ideal central push ...d5. You'll have a comfortable space advantage, easier development, and White's knight has wasted several moves wandering to a3 and back home. That's the essence of your advantage: you've traded a bishop for nothing concrete, and White has lost time.
The Mistakes White Makes — And How You Punish Them
When White avoids 3.Nxa3, the results are disastrous — literally blunder territory. Here are the most common errors and how badly they hurt White: - 3.Nc3 (103 games): White scores just 10.7%. This loses roughly 4.5 pawns of advantage. The knight blocks the c-pawn and does nothing to reclaim the initiative. - 3.g3 (53 games): White scores 13.2%, losing about 4.6 pawns. Fianchettoing here is far too slow. - 3.e3 (46 games): White scores 28.3%, losing about 4.3 pawns. - 3.Qc1 (21 games, 9.5%) and 3.Nf3 (21 games, 14.3%) are equally punishing for White. If your opponent tries anything other than 3.Nxa3, you are already winning. Simply develop naturally, keep the centre solid, and your extra tempo and position will speak for themselves.
The Typical Fight After 3.Nxa3 Qe7 4.Nb1 d5
Once the dust settles on moves 1-4, you reach a recognisable Black-friendly middlegame. You have pawns on e5 and d5 — a classic central duo — while White's pieces are still scrambling to find good squares. Your queen on e7 eyes the kingside and the centre, your light-squared bishop will develop naturally (often to g4 or e6), and your knights have clear posts. White, meanwhile, must figure out what to do with the knight that just returned to b1 and how to challenge your centre. The engine's -1.24 evaluation reflects that this is not a small edge: you are pressing for a win, not just equality. Play solidly, avoid overextending, and the position offers you excellent practical chances.
Results across 56,204 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nxa3 | 55,860 | 41.9% |
| Nc3 | 103 | 10.7% |
| g3 | 53 | 13.2% |
| e3 | 46 | 28.3% |
| Qc1 | 21 | 9.5% |
| Nf3 | 21 | 14.3% |
Frequently asked questions
Is 1.b3 a good opening for White?
Against accurate play, the Nimzo-Larsen Attack (1.b3) gives Black comfortable equality or more. After 1.b3 e5 2.Ba3 Bxa3, Black scores 53.6% across over 56,000 games, and Stockfish rates the position at -1.24 — a clear advantage for Black. It's a tricky opening but not one you need to fear.
Should I always take the bishop with 2...Bxa3?
Yes. 2...Bxa3 is the correct reply, leading to a clear advantage. The alternative of retreating or ignoring the bishop allows White to keep the bishop pair and maintain the initiative. Taking on a3 forces White to recapture awkwardly with the knight, which is the start of your advantage.
What if White plays 3.Nc3 instead of 3.Nxa3?
That's excellent for you. 3.Nc3 is a blunder that loses roughly 4.5 pawns of advantage. White scores only 10.7% from that move. You simply continue developing — for example, with ...d5 or ...Nf6 — and enjoy your extra piece and positional edge.
Can this opening lead to a quick win for Black?
Yes, especially if White doesn't know the correct response. After 1.b3 e5 2.Ba3 Bxa3, if White plays anything except 3.Nxa3, you're already winning a significant amount of material or position. Even after the best line (3.Nxa3 Qe7 4.Nb1 d5), you have a lasting -1.24 advantage that offers strong winning chances in practice.
How many games feature the Nimzo-Larsen Attack: Modern Variation: Ba3?
Over 56K Lichess games have reached the Nimzo-Larsen Attack: Modern Variation: Ba3 position. White wins 41.8%, Black wins 53.6%, with 4.6% draws — based on real rated games.