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Sicilian Defense: Grand Prix Attack with g6 — A White Repertoire Guide
The Sicilian Defense is a battleground, and the Grand Prix Attack is one of the most straightforward ways to fight it as White. After 1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.g3, you've announced your intentions: a kingside fianchetto, a space-gaining f-pawn, and an attack that doesn't require memorising mountains of Open Sicilian theory. But this position isn't trouble-free — Stockfish evaluates it at -0.32, a slight edge for Black, meaning you'll need to play accurately to keep the pressure on. Below, you'll find the engine's top choice, the statistics behind each reply, and the one mistake to avoid at all costs. Then dive into the interactive drill to sharpen your feel for this line.
Play the Sicilian Defense: Grand Prix Attack: g6 against the engine
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Ready to test your Grand Prix Attack skills? Jump into the interactive drill below, play the position against the engine, and see if you can build a winning f5-
Create a free account →What You're Fighting For — Space and the f5 Break
In the Grand Prix Attack, your main idea is simple: control the centre with e4 and f4, fianchetto your light-squared bishop, and eventually push f4-f5 to pry open Black's kingside. Black's ...g6 signals a king's fianchetto of their own, meaning both sides are racing to develop and strike on opposite wings. Your job is to build a solid centre (d3 or d4 depending on the line) and prepare f5. The engine's top response is 4...e6, which immediately challenges your centre and prepares ...d5. That's why accurate move orders matter — if you're not careful, Black can seize the initiative in the centre before you get your attacking setup rolling.
The Engine's Best Continuation
After 1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.g3, the computer recommends 4...e6 followed by 5.Bg2 d6 6.Nf3. This line sees Black reinforcing their centre and preparing ...Nf6 or ...Be7. As White, your plan from here is straightforward: castle kingside, play d3 (or possibly d4 at the right moment), and look for the f4-f5 break. Note that 4...e6 scores 50.5% for White across 99 games — a respectable result. Black is trying to prove that the Grand Prix setup is a little slow, so your task is to show that your attack arrives first. Stay patient, keep your pieces active, and don't force the issue until your position is fully coordinated.
What the Statistics Tell Us
The database of 2,778 games at this position shows a balanced struggle: White wins 45.5%, Black wins 50.8%, with only 3.7% draws. The main move by far is 4...Bg7 (2,466 games), where White scores 45.1% — slightly below the overall average. Other replies are rarer but offer interesting statistics: 4...e5 (24 games, White 54.2%), 4...Nf6 (15 games, White 53.3%), and 4...b6 (13 games, White 61.5%). These numbers suggest that Black's natural fianchetto (4...Bg7) gives you a perfectly playable game, while some of the less common tries actually favour you more — perhaps because your opponents are less familiar with the resulting positions. Regardless of Black's choice, your core plan remains the same: develop, castle, and prepare f5.
The Mistake to Punish
The engine flags 4...e5 as an inaccuracy, costing Black roughly 0.9 pawns compared to the better move 4...e6. If your opponent plays 4...e5, you should be alert: this move blocks the dark-squared bishop on g7 and weakens the d5 square. After the obvious response 5.Nf3, you'll have a pleasant position with central control and easy development. This is a good example of why knowing your opening matters — many club players assume ...e5 is natural in Sicilian positions, but here it's a mistake that gives you a comfortable edge. Be ready to capitalise.
Results across 2,778 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bg7 | 2,466 | 45.1% |
| d6 | 132 | 44.7% |
| e6 | 99 | 50.5% |
| e5 | 24 | 54.2% |
| Nf6 | 15 | 53.3% |
| b6 | 13 | 61.5% |
Frequently asked questions
Is the Grand Prix Attack: g6 good for White?
The engine gives -0.32, a slight plus for Black, meaning you are slightly worse from the start if both sides play perfectly. That said, at club level the position is very playable — you get a clear attacking plan and avoid massive theory, which often outweighs the tiny objective deficit.
What is Black's best reply to the Grand Prix Attack with g6?
According to the engine, Black's strongest move is 4...e6, continuing with ...d6 and ...Nf6. This is the most principled response, challenging your centre before you can launch your kingside attack.
How should White respond to 4...Bg7?
This is by far the most common move (2,466 games). You can continue naturally with 5.Bg2, then Nf3, castle kingside, and play d3. The statistics show White scores 45.1% from here — close to the overall average, so nothing to fear.
What is a common mistake Black makes in this line?
Playing 4...e5 is a clear inaccuracy, costing Black about 0.9 pawns. It blocks their fianchettoed bishop and weakens the d5 square. After 5.Nf3, White gets a comfortable edge with easy central control.