Indian Defense: Bg5 — A Rock-Solid Choice for Black

ECO A45 1,354,898 games Stockfish +0.04

If you're looking for a straightforward, principled answer to 1.d4, the Indian Defense: Bg5 is a great place to start. After 1.d4 Nf6 2.Bg5, you simply play 2...d5 — staking a claim in the centre and daring White to capture your knight. The engine evaluates the resulting position at +0.04, which is as close to perfectly equal as chess gets. Neither side is better out of the opening, so you can play this line with confidence. Below, you'll find the critical ideas, the most common continuations, and the one mistake you should watch out for.

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What You're Actually Fighting For

At first glance, White's bishop on g5 looks aggressive — it pins your knight to the queen. But after 2...d5, that pin isn't very scary. Your knight is defended by the queen, and if White ever captures it (...Bxf6), you recapture with ...gxf6, opening the g-file for your rook and strengthening your centre with a pawn on f6. The position is dead level because both sides have small concessions: White's bishop has moved twice before developing other pieces, while Black's kingside pawn structure is slightly compromised. Your main goal here is simple: develop naturally, keep the centre solid, and don't let White use that tempo advantage.

The Engine's Recommendation — What It Means

Stockfish's best move for White here is 3.e3, a quiet but flexible developing move. The engine's suggested continuation is 3...c5 4.Bxf6 gxf6 — notice that White's bishop eventually captures your knight anyway, but only after you've challenged the centre with ...c5. After 4...gxf6, you have a solid if slightly asymmetrical pawn structure. Your doubled f-pawns aren't pretty, but they control important central squares. From your perspective as Black, this variation is dead equal — you are not worse, and you are not better. You're simply in a playable middlegame where understanding the pawn structure matters more than memorising moves.

The Most Common Replies — What You'll Face

Over 1.35 million games have reached this position, giving us excellent data on what White actually plays. Here is how the numbers break down for the top continuations, with White's winning percentage in parentheses — remember that White wins 49.4% of the time across all games, so anything near that is normal. Anything much higher or lower might tell you something. Here are the most frequent moves and how you should think about them:

What the Statistics Reveal

  • 3.Bxf6 (464,471 games, White wins 48.6%): The most common move. White takes your knight immediately. You recapture with ...gxf6 and the position is symmetrical-ish. Black actually scores a hair better than average here — White's win rate drops below the baseline 49.4%. This is fine for you.

What to Watch For — The Known Mistake

There is one move you should hope White plays: 3.c4. This is classified as an inaccuracy that loses about 0.8 pawns of advantage. After 3.c4, Black can play ...dxc4, winning a pawn outright — White's queen bishop is committed to g5 and cannot recapture. If White tries to trap you with some trick, just stay calm: take the pawn, develop quickly, and enjoy being a pawn up for minimal compensation. The engine says the correct move was 3.e3 instead. In your own games, keep an eye out for this — many club players automatically push c4 against ...d5, and here it's a real blunder.

Results across 1,354,898 Lichess games

49.4%
4.1%
46.5%
■ White 49.4% ■ Draw 4.1% ■ Black 46.5%
Most-played continuationGamesWhite wins
Bxf6464,47148.6%
e3405,33950.5%
Nf3158,31750.2%
Nc3123,56448.3%
c455,86249.6%
Nd236,92453.1%

Frequently asked questions

Is the Indian Defense: Bg5 good for Black?

Yes. The engine evaluates the position after 2...d5 at +0.04, which is essentially dead equal. In practice, Black scores 46.5% wins against White's 49.4% — very respectable for Black, especially since White has the first-move advantage. It's a sound, principled opening.

What should I do if White plays 3.c4?

This is a mistake by White. Just capture the pawn with 3...dxc4. White's bishop on g5 is committed and cannot take back on c4. You come out a clean pawn up. The engine says 3.c4 loses about 0.8 pawns of advantage compared to the correct move 3.e3.

How do I recapture after Bxf6 — with queen or pawn?

Recapture with the pawn: ...gxf6. This opens the g-file for your rook and gives you a solid pawn duo in the centre. Taking with the queen (...Qxf6) is possible but loses the queenside bishop and gives White a target. The engine's best continuation goes ...gxf6, and statistics show Black scores well after that recapture.

What is the most common continuation White plays?

The most popular move is 3.Bxf6, appearing in over 460,000 games. White captures your knight immediately, and you recapture with ...gxf6. The second most common is 3.e3 (over 405,000 games), which is actually the engine's top choice. Both are playable for you.