Chessy
The Vienna Gambit: Meeting the Max Lange Defense (Bb4)
You've played 1.e4 e5 2.Nc3 Nc6 3.f4 — the Vienna Gambit — and your opponent has hit you with the Max Lange Defense: 3...Bb4, pinning your knight. This is a sharp and principled reply that attacks your centre from the side. Don't be intimidated. After 4.Nf3, you reach a position where the engine gives you a slight edge (+0.35), and the statistics across nearly 70,000 games confirm it: White scores 54.3% wins here. The key is knowing where to strike next. That's exactly what this page — and the interactive drill below — will teach you.
Play the Vienna Gambit, with Max Lange Defense: Bb4 against the engine
Free, no signup — you play white, the engine adapts to your level.
The best way to learn this line is to play it. Head to the interactive drill below, test yourself against the engine, and start racking up wins with the Vienna.
Create a free account →What You're Fighting For: The Centre and the f4 Pawn
The first thing to notice about this position is the tension on f4. Black's bishop on b4 attacks your knight on c3, but the real question is: what happens to your f-pawn? The engine's best move here is 4...exf4, and that's also the move you want to see — because after 5.Nd5, you're threatening Nf6 (forking king and queen) while building an attack. Black's most dangerous alternatives aim to slow you down: 4...d6 (the most popular reply, appearing in over 26,000 games) solidifies the centre but gives you time, while 4...Bxc3 (second most popular) trades bishop for knight, hoping to weaken your pawns. Your job as White is to stay active and keep the initiative — don't let Black stabilise.
The Critical Square: d5 and Your Knight Jump
If Black takes on f4 — and the engine says that's the best test — your immediate reply is 5.Nd5. This knight leap is the soul of the Vienna Gambit in this line. From d5 the knight threatens Nf6 (forking king and queen), attacks the bishop on b4, and eyes c7. Black's most logical response is 5...Nf6, meeting your threat with a counter-threat. That's where 6.c3 comes in: you kick the bishop while protecting your pawn on b2. The engine's best continuation runs 4...exf4 5.Nd5 Nf6 6.c3, and you emerge with active pieces and the bishop pair. If Black instead plays 5...Bd6 or 5...Bg5, you're still doing well — the knight on d5 is a permanent nuisance.
Punishing Black's Most Common Mistakes
The statistics reveal three replies that the engine flags as errors, and you need to know how to exploit them. 4...Nf6 is a mistake costing Black about 1.3 pawns — instead of taking on f4, Black develops a knight that can be kicked around. Your plan: 5.e5, pushing the knight away and winning time. 4...f6 is also a mistake (about 1.2 pawns worse than exf4) — Black tries to defend e5 but weakens the kingside terribly. Punish it with 5.d4 or 5.Nxe5? Actually, 5.d4 is cleaner, opening lines while Black's king is stuck in the centre. 4...Nge7 is an inaccuracy (about 1.0 pawns worse) — Black aims to re-route but neglects the centre. Meet it with 5.Nxe5 or simply 5.fxe5, winning a pawn outright. Across all of these, your score as White sits between 52.9% and 60.0%, so you're in great shape.
How to Handle Black's Top Two Replies
The two most common Black moves are 4...d6 (26,147 games) and 4...Bxc3 (21,872 games). Against 4...d6, White scores 51.7% — still a slight edge but the fight continues. The straightforward plan is 5.Bc4, developing with threats, or 5.fxe5 dxe5 6.Qe2, eyeing the e5-pawn. Black usually follows up with Nf6 or Nge7, and you castle queenside or kingside depending on where the action goes. Against 4...Bxc3, White scores a solid 55.8% — trading your knight for Black's bishop is actually good for you after 5.dxc3! (not bxc3, which leaves your queenside shattered). The doubled c-pawns aren't a problem: they give you a semi-open b-file and central control. From there, play 5...exf4 6.Bxf4, develop your pieces, and enjoy the bishop pair in an open position.
Results across 69,339 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| d6 | 26,147 | 51.7% |
| Bxc3 | 21,872 | 55.8% |
| exf4 | 12,654 | 55.2% |
| Nf6 | 3,302 | 56.2% |
| f6 | 1,895 | 60.0% |
| Nge7 | 997 | 52.9% |
Frequently asked questions
Is the Vienna Gambit with Bb4 good for White?
Yes. Stockfish evaluates the position after 4.Nf3 as +0.35, a small edge for White. Across nearly 70,000 games on Lichess, White wins 54.3% of the time. While the Max Lange Defense is a principled reply, the statistics show White scores well against every reasonable black response.
What is the best move for Black in the Vienna Gambit Max Lange Defense?
According to the engine, Black's best move is 4...exf4. From there, the recommended continuation is 5.Nd5 Nf6 6.c3. While this gives White a slight advantage, it's Black's most testing option — many of the alternatives (like 4...Nf6, 4...f6, or 4...Nge7) are outright mistakes or inaccuracies that you can punish.
How do I punish 4...Nf6 in the Vienna Gambit?
If Black plays 4...Nf6, that's a mistake worth about 1.3 pawns. The simplest reply is 5.e5, kicking the knight. Black's knight has to move again, losing time while you gain space and central control. After the knight retreats, you can continue developing naturally and maintain your initiative.
Should I recapture with the pawn or the bishop after 4...Bxc3?
Recapture with the pawn: 5.dxc3, not 5.bxc3. Taking with the d-pawn opens lines for your queen and light-squared bishop, while the doubled c-pawns aren't a serious weakness — they actually give you some control over the centre and a semi-open b-file. After 5...exf4 6.Bxf4, you have the bishop pair and active development.