Opening guide

Master the Sicilian Defense: Closed, Traditional: f4 as Black

ECO B23 719,626 games Stockfish -0.09

The Sicilian Defense: Closed, Traditional: f4 — 1.e4 c5 2.Nc3 Nc6 3.f4 e6 — is a solid, flexible way to meet White's slow build-up. After those three moves, the engine rates the position -0.09, essentially dead level. That means nothing has gone wrong yet, and you are right in the fight. With White winning 48.6% of games, Black 48.1%, and only 3.3% draws, you can see this is a scrappy, decisive battleground. Your task is simple: choose the reply that keeps the balance and avoids letting White seize an edge. The drill below will help you practise exactly that.

On this page
  1. Practice against the engine
  2. What Are You Fighting For?
  3. White's Most Popular Move: 4.Nf3
  4. The Second-Player Bite: 4.Bb5
  5. One Move to Avoid: 4...e5
  6. Real-game results
  7. FAQ
  8. More Sicilian lines

Play the Sicilian Defense: Closed, Traditional: f4 against the engine

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Now put these ideas into action. Step into the interactive drill below and practise the Sicilian Defense: Closed, Traditional: f4 as Black against a live engine

Find your own #1 mistake — free →

What Are You Fighting For?

In the Closed Sicilian, White usually aims for a slow kingside attack, often pushing f4–f5 and crashing through with pawns. By playing 3...e6, you are doing two important things. First, you control the d5 square, which stops White's knight from jumping there. Second, you keep your options open: you can later develop your king's bishop to e7 or d6, and you can challenge the centre with ...d5 when the time is right. The position is balanced, so your job is to develop sensibly and not overreact. If White does nothing dangerous, you will be perfectly fine.

The Second-Player Bite: 4.Bb5

White's second-most popular choice is 4.Bb5 (106,821 games, White scores 50.0%). That bishop pins your knight and threatens to take it, doubling your pawns. Your simplest plan is to break the pin with 4...Nge7 or 4...a6 — both fine, natural moves. Notice that White's score drops slightly from 50.0% when you know what to do. Nothing in the statistics suggests you should fear this line. Develop your king's knight, castle quickly, and wait for White to commit to a plan before you strike in the centre.

One Move to Avoid: 4...e5

The move 4...e5 is flagged as a known mistake — it loses about 0.6 pawns of advantage. While you might be tempted to fight for the centre immediately, pushing the e-pawn again leaves your d5 square weak and lets White's knight settle on d5 with tempo. The statistics back this up: in the 8,864 games where White played 4.e5 (and you would respond as Black), White's winning percentage actually drops to 44.3% — but that's a different position. If you are playing Black here, you will not play 4...e5 yourself; just remember that the right approach is calm development, not rushing to push pawns.

Results across 719,626 Lichess games

48.6%
3.3%
48.1%
White 48.6% Draw 3.3% Black 48.1%
Most-played continuationGamesWhite wins
1 Nf3Main line 519,991
48.8%
2 Bb5 106,821
50.0%
3 Bc4 47,950
47.5%
4 d3 19,504
43.2%
5 e5 8,864
44.3%
6 g3 4,352
46.6%

Frequently asked questions

Is the Closed Sicilian: f4 dangerous for Black?

Not at all. The engine gives -0.09, which means the position is dead equal. Black wins 48.1% of the time, nearly matching White's 48.6%. You are not under any immediate pressure as long as you develop sensibly.

Should I play ...d5 early as Black here?

You can aim for ...d5 eventually, but rushing it is rarely necessary. After 3...e6, the d5 square is well covered. Wait until White's pieces are committed — for example, if White plays d3 and g3, ...d5 can become a strong central break.

What is the best way to meet 4.Nf3?

The engine recommends 4...Nh6, followed by 5.Bb5 Nd4. That knight on h6 looks unusual, but it reroutes to f7 or g4 and supports your central play. It is a tried-and-tested plan in this line.

Why does White sometimes play 4.Bc4?

White aims at the f7 square and may threaten an early kingside attack. With 47,950 games played and White scoring only 47.5%, you can answer calmly with moves like ...Nge7 or ...a6. Just develop and castle, and you will neutralise the threat.

How many games feature the Sicilian Defense: Closed, Traditional: f4?

Over 719K Lichess games have reached the Sicilian Defense: Closed, Traditional: f4 position. White wins 48.6%, Black wins 48.1%, with 3.3% draws — based on real rated games.