Chessy
Sicilian Defense: Closed Variation with Nc6
After 1.e4 c5 2.Nc3 Nc6 3.Nf3, you have reached a key branching point in the Closed Sicilian. Black has many ways to continue, and the statistics show a razor-thin fight: White wins 46.4% of games, Black wins 49.6%, with only 4.0% draws. The engine gives this position a +0.29 edge for White, meaning you are slightly better. But that advantage is fragile — you need to know where your small plus comes from and how to hold on to it. The drill below will help you navigate Black's most common replies.
Play the Sicilian Defense: Closed: Nc6 against the engine
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Test your understanding of the Closed Sicilian Nc6 in the interactive drill below. Play against the engine and see if you can convert that +0.29 edge into a win
Create a free account →The Main Idea: Fight for d4
In the Closed Sicilian with Nc6, your central plan is straightforward: prepare the d4 break. Your knight on c3 and pawn on e4 support it, while your knight on f3 helps control the centre. If Black allows you to play d4 cleanly, you open lines for your bishops and gain space. This is why the engine's top recommendation for Black is 3...g6, aiming to fianchetto the bishop and contest the centre from a distance. Whether Black plays e6, d6, e5, or Nf6, your job is the same: watch for the right moment to push d4 or keep the tension if Black tries to lock the centre first.
The Engine's Line: Black's Best Reply
Stockfish says Black's strongest answer is 3...g6, continuing with g6 4.d4 cxd4 5.Nxd4. Notice that White does not hesitate — the engine pushes d4 on move 4. After Black captures, you recapture with the knight on d4, where it is active and hard to chase away. From here, the game flows into a standard Open Sicilian structure, but you have saved a tempo compared to some other move orders. Even though g6 is the engine's top choice, it leads to Black's lowest White win rate (44.6%), so you must play precisely to prove your slight edge.
What the Statistics Tell You
The most popular move by far is 3...e6 (2,377,271 games), where White scores 46.6%. Just behind is 3...d6 (1,993,883 games, White scores 46.3%). Black's most aggressive-looking move is 3...e5, played 1,030,596 times, and it yields Black's lowest winning percentage for Black — White scores 47.3%. That pattern makes sense: 3...e5 blocks Black's own light-squared bishop and gives you a clear target with d4. Against 3...Nf6 (690,296 games, White scores 46.1%) and 3...a6 (445,563 games, White scores 47.3%), the same principles apply: develop, keep an eye on d4, and avoid rushing.
Your Plan Against Each Major Reply
- 3...e6: Black prepares d5. Keep developing (Bb5 or Be2 are both sensible) and be ready to meet d5 with exd5 or support the centre with d3. Do not let Black trade off the central tension cheaply. - 3...d6: A classic Sicilian setup. Black intends g6 and Bg7. Play d4 next if you want an Open Sicilian, or keep it closed with Be2 and 0-0, planning f4 later. - 3...g6: As mentioned, this is the engine's preference. Meet it with the immediate d4 break. After cxd4 Nxd4, you have a comfortable game. - 3...e5: Black fights for d4 directly. Now 4.Bb5 is a nice reply, pinning the knight, or you can simply prepare d4 with d3 and Be3. - 3...Nf6: Natural development. The most common reply is 4.e5, chasing the knight to g8 or d5, then playing d4. - 3...a6: A waiting move. Punish it by playing d4 immediately; Black has no good way to prevent it, and you get a favourable Open Sicilian.
Results across 8,455,226 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| e6 | 2,377,271 | 46.6% |
| d6 | 1,993,883 | 46.3% |
| g6 | 1,653,199 | 44.6% |
| e5 | 1,030,596 | 47.3% |
| Nf6 | 690,296 | 46.1% |
| a6 | 445,563 | 47.3% |
Frequently asked questions
Is the Closed Sicilian Nc6 good for White?
Yes, it scores well for White at club level. The engine gives +0.29, a slight edge for White, meaning you are slightly better if you play accurately. The key is to aim for the d4 break at the right moment and not let Black dictate the pace.
What is Black's best move after 3.Nf3 in the Closed Sicilian?
According to Stockfish, Black's best move is 3...g6, preparing a fianchetto. The engine's line continues 4.d4 cxd4 5.Nxd4. Even so, Black still has to prove equality, and you keep a small advantage as White.
How should White respond to 3...e5 in the Closed Sicilian?
Black's move 3...e5 is relatively rare but solid. It blocks Black's own light-squared bishop and gives you a clear target. You can play 4.Bb5 pinning the knight, or simply 4.d3 followed by Be3 and Qd2, preparing d4. White scores 47.3% against this line.
Why does White win less often against 3...g6?
When Black plays 3...g6, White's win rate drops to 44.6%, the lowest of the major options. This is because g6 prepares a flexible setup with Bg7, and the engine considers it Black's best try. You need to play the d4 break confidently to keep your edge.