Chessy
The Sicilian Defense: Old Sicilian with 3.Bc4 — Playing as Black
After 1.e4 c5 2.Nf3 Nc6 3.Bc4, you've reached the Old Sicilian variation — a line where White develops their bishop to an active square early. By playing 3...e6, you immediately challenge that bishop and keep the position balanced. Stockfish rates this position at +0.00, a dead level game. That means you are doing just fine — neither side has an edge from the start. In fact, over 12 million games in the Lichess database show Black actually scores 50.7% from here, slightly outperforming White. The interactive drill below will help you navigate the critical early decisions and punish any inaccuracies from your opponent.
Play the Sicilian Defense: Old Sicilian: Bc4 against the engine
Free, no signup — you play black, the engine adapts to your level.
Play through the interactive drill below — practise responding to White's most common moves and learn to punish 4.a3. Create a free account to track your rep.
Create a free account →Why 3...e6 Is Your Best Reply
The move 3...e6 does two important things at once. First, it eyes the d5 square — your natural break in many Sicilian lines. Second, it challenges White's bishop on c4. After ...e6, that bishop no longer has a clear diagonal toward f7, and White often has to decide what to do with it next. This leads to structures where you can develop your kingside naturally (Nf6, Be7) and later fight for central control with ...d5. The statistics back this up: in over 12 million games reaching this exact position, Black wins 50.7% of the time. You are not just surviving — you are already outscoring White at the most basic level of results.
The Engine's Best Path: Nc3 and the Standard Reply
When White plays the engine's top choice, 4.Nc3, the recommended continuation is 4...Nf6 5.Bb5 Qc7. The bishops trade or get kicked, and you develop comfortably. The key idea is simple: develop your knight to f6 to pressure e4, then play Qc7 to support your centre and connect your rooks. This line scores 45.7% for White — meaning you win the majority of games even against the engine's preferred move. Your plan is solid: finish development, castle short, and prepare ...d5 when the moment is right.
What the Statistics Tell You About White's Choices
White has several popular options here, and none of them give White a decisive edge. Let's look at the numbers for the most-played moves: O-O (2.7M games, White scores 46.2%); d4 (2.25M games, White scores 46.3%); Nc3 (2.1M games, White scores 45.7%); d3 (2.04M games, White scores 44.0%); c3 (1.86M games, White scores 47.1%). Notice the pattern: White never cracks 48% in any of these lines. The d3 move, in particular, gives White their worst result at just 44.0% — a passive approach that lets you take the initiative. Whenever White plays timidly, look to strike in the centre with ...d5 as soon as it's safe.
The One Move You Want Your Opponent to Play
If White plays 4.a3, you've caught them making a real mistake. The engines assess this as an inaccuracy that loses about 0.8 pawns — a serious gift. White's a3 does nothing useful, wasting a tempo when they could have played Nc3. After a3, Black simply continues development with Nf6 or d5, and you have a clear advantage out of the opening. This is exactly the kind of opening knowledge that turns a balanced position into a winning one. Know your responses, and you'll punish opponents who don't know what they're doing. The drill below will let you practise exactly this.
Results across 12,093,451 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| O-O | 2,725,758 | 46.2% |
| d4 | 2,251,138 | 46.3% |
| Nc3 | 2,099,746 | 45.7% |
| d3 | 2,040,248 | 44.0% |
| c3 | 1,864,303 | 47.1% |
| a3 | 531,138 | 45.8% |
Frequently asked questions
Is 3.Bc4 the Old Sicilian a good line for Black?
Yes. The position after 3...e6 is completely equal at +0.00 according to Stockfish, and in practice Black scores 50.7% across 12 million games — actually outscoring White. You are not fighting for equality; you already have it. Focus on solid development and you'll be fine.
What is the best move after 3.Bc4 e6?
The most important thing is to know your responses to White's choices. The engine's top line continues 4.Nc3 Nf6 5.Bb5 Qc7. Against 4.O-O or 4.d4, develop naturally with Nf6 and prepare ...d5. The move you especially want to see is 4.a3 — that's a real inaccuracy for White that gives you an edge.
Should I play ...d5 right away as Black?
Not immediately. After 3...e6, it's White's move, and while ...d5 is your long-term goal, you usually want to develop first. Play Nf6 to pressure e4, then look for the right moment to push ...d5. Trying to force it too early can leave you with a weak pawn on d5 that White can target.
Why does White score poorly in this variation?
White's best score among the most-played continuations is just 47.1% (after 4.c3), and most options score around 45-46%. The bishop on c4 often becomes a target after ...e6, and White can lose time moving it again. Black's solid development and central potential give them comfortable play. If White plays passively (like 4.d3, scoring only 44.0%), you can take over the initiative.
How many games feature the Sicilian Defense: Old Sicilian: Bc4?
Over 12 million Lichess games have reached the Sicilian Defense: Old Sicilian: Bc4 position. White wins 45.7%, Black wins 50.7%, with 3.6% draws — based on real rated games.