Opening guide

Rat Defense: Accelerated Gurgenidze — play it as Black

ECO B06 116,319 games Stockfish +0.79

The Rat Defense: Accelerated Gurgenidze starts with a compact pawn setup that aims to stay flexible before committing your kingside pieces. In the position after 1.e4 g6 2.d4 d6 3.Nc3 c6, it is White to move, and your job as Black is to know what happens next and where White usually tries to press. This page is built around that exact moment. Use the drill below to practise the position, recognise the common plans, and get ready for the most popular White continuations.

On this page
  1. Practice against the engine
  2. What the engine says about this position
  3. White’s main choices after the opening moves
  4. The engine’s preferred setup for Black
  5. How to handle the most popular White tries
  6. Real-game results
  7. FAQ
  8. More Rat lines

Play the Rat Defense: Accelerated Gurgenidze against the engine

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What the engine says about this position

Stockfish rates this +0.79, a clear edge for White. That means you are already worse, and you should treat the opening as a setup that needs accurate handling rather than a line that equalises on its own.

The practical message is simple: White has a lasting pull, so your goal is to stay solid, finish development, and avoid giving away extra tempo. In openings like this, clean piece placement and king safety matter even more because you do not get help from an early central claim.

White’s main choices after the opening moves

The most common continuation here is Nf3, with 51,216 games. White also often chooses Be3, f4, Bc4, Bf4, or Bd3. These are not random moves: they show that White can steer the game into several different setups while keeping the initiative.

For you as Black, that means you should not memorise one narrow trick and stop there. The safer habit is to understand the position: develop smoothly, watch White’s central and kingside plans, and be ready for different piece placements. The drill helps you feel which responses are stable when White changes move order.

The engine’s preferred setup for Black

The engine’s best move here is Be2, continuing Be2 Bg7 Nf3 Nf6. That tells you the natural direction of play: complete development and put pieces on active squares without rushing.

Even though the exact moves in the continuation are given by the engine, the general lesson is broader. You want your kingside pieces out, your king safe, and your position ready to meet White’s central and kingside pressure. If you fall behind in development, White’s plus can become much easier to feel.

Results across 116,319 Lichess games

49.1%
3.8%
47.0%
White 49.1% Draw 3.8% Black 47.0%
Most-played continuationGamesWhite wins
1 Nf3Main line 51,216
48.1%
2 Be3 15,873
52.5%
3 f4 12,532
51.2%
4 Bc4 6,436
52.1%
5 Bf4 5,552
48.6%
6 Bd3 5,134
47.2%

Frequently asked questions

Is the Rat Defense: Accelerated Gurgenidze good for Black?

The position after 1.e4 g6 2.d4 d6 3.Nc3 c6 is not objectively pleasant for Black. Stockfish gives +0.79, which is a clear edge for White, so you should expect to defend accurately rather than rely on equalising.

What is White’s best move in this position?

The engine’s best move here is Be2. The listed continuation is Be2 Bg7 Nf3 Nf6, which shows the kind of calm development White can choose while keeping the pressure.

What are White’s most common continuations?

The most-played move is Nf3, with 51,216 games. Other common choices are Be3, f4, Bc4, Bf4, and Bd3, so you need to be ready for several standard development schemes.

What should Black focus on after these opening moves?

Your priority is simple development and king safety. Because White already has a lasting advantage, you want to avoid loosening moves and make your pieces work together as quickly as possible.

How many games feature the Rat Defense: Accelerated Gurgenidze?

Over 116K Lichess games have reached the Rat Defense: Accelerated Gurgenidze position. White wins 49.1%, Black wins 47.0%, with 3.8% draws — based on real rated games.