Chessy
The French Defense: Classical Variation with Bg5 – Your Guide as Black
You've played 1.e4 e6, 2.d4 d5, 3.Nc3 Nf6 — and now White pins your knight with 4.Bg5. You capture on e4: 4...dxe4. This is a sharp, tactical moment where many White players go wrong. The engine rates the position +0.37, a small edge for White, so you are slightly worse but fully in the fight. Below you'll find the critical line, the most common mistakes White makes, and what the statistics say about your chances. Jump into the interactive drill to practice your reply.
Play the French Defense: Classical Variation: Bg5 against the engine
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Create a free account →What You're Fighting For
This position is about piece activity and king safety. By capturing on e4 with 4...dxe4, you've temporarily given White the centre but opened lines for your pieces. Black's plan is straightforward: develop quickly, keep the king safe (usually by castling kingside), and pressure White's centre. The statistics show this is a highly balanced battle — across 245,438 games, White wins 48.2%, draws 4.5%, and Black wins 47.3%. That's barely a percentage point apart. Your goal is to turn that tiny statistical gap into a full point by understanding the critical moment right now.
The Engine's Best Move and Why
Stockfish's top choice for White is 5.Nxe4. The most-played continuation runs Nxe4 Nbd7 Nxf6+ Nxf6. After these moves, Black has traded a pair of knights and will complete development with moves like...c5, ...Bd6, and ...0-0. Black's position is solid and active. Notice that 182,945 games have reached 5.Nxe4 — it's by far the most popular move — and White scores only 47.5% from here. That's below White's overall winning percentage in the position, which tells you Black is doing just fine in this line. Your job as Black is to know this sequence and not fear the trade.
Three Mistakes White Makes (and How to Punish Them)
The statistics identify three common inaccuracies from White, each losing roughly 0.9 pawns of advantage. All three are more popular than you might expect, meaning many White players don't know the best move. Here they are: - 5.Bxf6 (37,738 games, White scores 51.5%): White trades bishop for knight prematurely. After 5...Qxf6, Black has the bishop pair and a solid pawn on e4. You're happy here. - 5.f3 (13,222 games, White scores 52.0%): White tries to evict your e4-pawn with a pawn. But 5...exf3 6.Nxf3 gives Black easy development and a comfortable game. - 5.Bc4 (2,981 games, White scores 46.1%): A natural-looking developing move that allows 5...Nxe4! when 6.Nxe4 (not 6.Bxf7+? Kxf7) leaves Black a pawn up after ...c5. Note that 5.Bb5+ is the only non-Nxe4 move where White scores below 50% (41.2%). If you see Bb5+, ...Bd7 is a safe and strong reply.
What the Statistics Reveal About Your Chances
The numbers paint an encouraging picture. When White plays the engine's best move (5.Nxe4), White's score is 47.5% — lower than the 48.2% overall White win rate. That means the main line is actually slightly better for Black than the position average! Meanwhile, three of the other five most popular moves (Bxf6, f3, Bc4) are all flagged as inaccuracies that lose nearly a full pawn's worth of advantage. Only 5.Nxe4 keeps the +0.37 edge for White. If you prepare the correct responses, you'll be out of the opening with equal or better chances in a huge percentage of your games.
Results across 245,438 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nxe4 | 182,945 | 47.5% |
| Bxf6 | 37,738 | 51.5% |
| f3 | 13,222 | 52.0% |
| Bc4 | 2,981 | 46.1% |
| Qe2 | 2,430 | 48.8% |
| Bb5+ | 2,120 | 41.2% |
Frequently asked questions
Is the French Defense Classical Bg5 good for Black?
Yes, it's perfectly playable. The engine gives White only +0.37, a tiny edge, and Black wins 47.3% of games — nearly equal to White's 48.2%. The position requires accurate play, but Black has excellent practical chances.
How should Black respond to 5.Bxf6 in the French Classical Bg5?
Recapture with your queen: 5...Qxf6. You get the bishop pair and keep your pawn on e4. White has lost their pin and weakened their structure slightly. This line is an inaccuracy by White, losing about 0.9 pawns of advantage — you're already doing well.
What is the main line after 4...dxe4 in the French Classical Bg5?
The engine's best line is 5.Nxe4 Nbd7 6.Nxf6+ Nxf6. After this, Black develops naturally with ...c5, ...Bd6, and castles kingside. It's a well-known equalising line that has been played over 182,000 times.
What is Black's plan after 5.Nxe4 in the French Classical Bg5?
Black should develop quickly, targeting White's centre. The typical plan is ...Nbd7, recapture on f6 if needed, then ...c5 challenging the d4-pawn, ...Bd6, and kingside castling. Black's pieces become active and the position remains balanced.