Chessy
Petrov's Defense: Modern Attack with exd4 — How to Seize the Edge as White
After 1.e4 e5 2.Nf3 Nf6 you have already sidestepped the well-trodden Two Knights and Italian lines. The Modern Attack, 3.d4 exd4 4.e5, throws Black onto their own resources immediately. With the pawn on e5 cramping Black's kingside and your knight bearing down on the centre, this is exactly the kind of active, principled position that rewards understanding over memorisation. Below you will find a live drill where you can test your instincts, punish Black's most common errors, and press a +0.57 edge that the engine says is very real.
Play the Petrov's Defense: Modern Attack: exd4 against the engine
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Now take the White side and face these replies in a live drill. The engine adapts to your level — click below to play Petrov's Defense: Modern Attack exd4 on a
Create a free account →The Critical Moment: Black's First Decision
The position after 4.e5 is the tabiya of this line. Black has six moves that appear regularly in the Lichess database, but they are not equal. The engine points to Ne4 as Black's only way to keep the balance — everything else gives you a tangible plus. Across over 620,000 games at this exact spot, White scores a commanding 57.7%, with Black winning only 39.2%. That statistical hammer tells you that most club players misplay this position as Black. Your job is to know which replies to welcome.
The Engine's Recommendation: Meet Ne4 with d4
If Black finds the best move — Ne4 — the engine suggests 5.Qxd4 d5 6.exd6 as a strong continuation. The pawn on d6 isolates Black's e4-knight and opens lines for your pieces. You remain with a comfortable space advantage and the bishop pair potential after ...Nxd6. This line has been played 66,009 times with a 54.8% win rate for White, but the key is that many opponents will never reach it: they blunder earlier.
Three Mistakes Black Makes Most Often
The database shows three clear offenders. Each one hands you a measurable advantage if you know how to follow up. - Qe7 (169,050 games, 55.5% for White): A mistake costing roughly 1.0 pawns. Black tries to defend the knight, but the queen becomes a target. Your reply? Centralise and attack — the knight on f6 is still pinned. - Nd5 (167,687 games, 59.4% for White): An inaccuracy worth about 0.7 pawns. The knight looks active but has no retreat. Push it around with tempo. - Ng4 (130,965 games, 57.9% for White): A mistake costing 1.1 pawns. The knight is loose on g4 and the e5-pawn cramps Black's kingside. Punish it before Black can regroup.
When Your Opponent Plays Bb4+
The check Bb4+ is less common (16,656 games) but gives White the highest win rate of any Black reply at 63.5%. This pin looks annoying, but your e5-pawn already restricts Black's bishop. Simply interpose with a piece or block with tempo if possible. The statistical leap from 57.7% to 63.5% shows that Black is often trying to complicate — and overreaching. Keep your development simple and do not fear the check.
The Pawn Structure You Are Fighting For
White's e5-pawn is the star of this opening. It restricts Black's knight on f6 (or chases it away), gains space on the kingside, and makes ...d6 a concession if Black ever wants counterplay. After the engine line 5.Qxd4 d5 6.exd6, you get a semi-open e-file and a lead in development. If Black plays one of the mistake moves, you often keep the e5-pawn and enjoy a cramping advantage that lasts well into the middlegame. That is why the engine evaluates this at +0.57 — a clear, small edge that you can turn into a full point with accurate play.
Results across 621,349 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Qe7 | 169,050 | 55.5% |
| Nd5 | 167,687 | 59.4% |
| Ng4 | 130,965 | 57.9% |
| Ne4 | 66,009 | 54.8% |
| Ng8 | 57,265 | 57.7% |
| Bb4+ | 16,656 | 63.5% |
Frequently asked questions
Is 4.e5 a good move in the Petrov Defense?
Yes. The Modern Attack with 4.e5 scores 57.7% for White across over 620,000 games. The engine gives +0.57, a small but clear edge. It immediately challenges Black's knight and grabs space, which is the main idea of the line.
What is Black's best reply to 4.e5 in the Petrov?
The engine recommends Ne4. After 5.Qxd4 d5 6.exd6 White keeps a slight advantage. Black's other common moves — Qe7, Nd5, and Ng4 — are all mistakes that give you a bigger edge.
How should White punish Qe7 in the Petrov Modern Attack?
Qe7 is a mistake costing about 1.0 pawns. Black tries to defend the f6-knight, but the queen becomes exposed. Develop naturally, keep attacking the knight, and do not let Black consolidate. The database shows White wins 55.5% of games after Qe7.
Why does the Bb4+ line score so well for White?
Bb4+ appears in 16,656 games and White wins 63.5% — the highest win rate against any Black reply. The check wastes a tempo because Black's bishop has no follow-up after you block or develop. Black is often trying to be tricky and overextends.