Chessy
Philidor Defense: Exchange Variation with 4.c3 — Playing as Black
The Philidor Defense is a solid, old-school answer to 1.e4, and the Exchange Variation with 4.c3 leads to a sharp little gambit. After 1.e4 e5 2.Nf3 d6 3.d4 exd4 4.c3 dxc3, White has several ways to recapture — but only one of them keeps the pressure on. Over a quarter-million games have been played from this position, and the statistics show clear patterns you can use. The engine says you already have a small edge as Black. Let's look at how to keep it that way.
Play the Philidor Defense: Exchange Variation: c3 against the engine
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Create a free account →The Position After 4…dxc3 — What's Going On?
You've just grabbed a second pawn with 4…dxc3, leaving White with a choice: recapture on c3 or try something more ambitious with a developing move like Bc4. This is not a quiet, slow Philidor — it's an early tactical fight. White's centre pawn on e4 faces some pressure since you already have …d6 and …exd4 in the rearview mirror. Your main job now is to complete development while keeping the extra pawn unless White forces you to return it. Across 283,962 games, Black scores 41.3% wins here (with another 3.4% draws) – a respectable number for a line where White often goes all-in on attack.
White's Best Try: Bc4 — and Your Accurate Reply
The engine picks Bc4 as the strongest move, and it's also the most popular by far (155,606 games). White attacks f7 immediately while also preparing Qb3 to target b7 and f7 at once. The engine's suggested continuation is Bc4 Nf6 Qb3 d5. Your knight develops to f6, blocking the check, and when White plays Qb3 you hit back with …d5, opening the centre and challenging White's bishop on c4. This is the critical line to know. From here the position remains lively but balanced, and you are the one with the extra pawn.
The Statistics Tell a Story
Bc4 gives White a 57.1% score — solid but not crushing. The alternative Nxc3 (120,398 games) scores 53.5% for White, also respectable but slightly less dangerous. The real news is what happens when White picks something else: Bd3 sees White score only 49.4%, and the rare h3 drops to 45.7%. Most striking is bxc3, played in just 1,025 games: White scores a miserable 36.6% from that move. That means you win nearly two out of every three games when White captures back with the b-pawn. The engine's evaluation of -0.28 confirms you have a small edge overall – Black is already slightly better.
Three Mistakes White Often Makes — and How You Punish Them
The engine flags three subpar moves you can exploit if your opponent slips up. Bd3 (2,503 games) is an inaccuracy that loses about 0.9 pawns; the bishop is passive there and doesn't threaten anything. Just develop naturally with …Nf6 or …Be7 and enjoy your extra material. h3 (1,168 games) is another inaccuracy costing 0.9 pawns; White wastes a tempo on a pointless pawn move. Again, develop and keep the pawn. bxc3 (1,025 games) is the worst of the bunch, a full mistake losing about 1.1 pawns. White's queenside pawn structure is wrecked and the c-file is open. Your plan: develop quickly, castle, and pressure the doubled c-pawns. If White chooses any of these, you are clearly better.
Your Typical Middlegame Plan
After the main line 5.Bc4 Nf6 6.Qb3 d5, you've given back one pawn but opened lines for your pieces. Your bishop on c8 can go to e6 or f5, your knight on f6 is active, and you can castle kingside soon. You have a slight lead in development and a solid pawn structure. If White instead recaptures with 5.Nxc3, the game transposes into a more standard Philidor where you have …d6, …Nf6, …Be7, and …0-0 as natural moves. Either way, the Philidor gives you a sturdy foundation — you're not trying to crush White immediately, just to neutralise the attack and outplay them in a slightly better position.
Results across 283,962 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Bc4 | 155,606 | 57.1% |
| Nxc3 | 120,398 | 53.5% |
| Bd3 | 2,503 | 49.4% |
| Qb3 | 1,340 | 56.8% |
| h3 | 1,168 | 45.7% |
| bxc3 | 1,025 | 36.6% |
Frequently asked questions
Is the Philidor Defense Exchange Variation c3 good for Black?
Yes, it's perfectly playable. Stockfish evaluates the position at -0.28, meaning Black has a slight edge. In practice, Black wins 41.3% of games from this exact position, compared to 55.3% for White. The results are solid for a defence that's considered very sound.
What is the best move for White after 4…dxc3?
The engine's top choice is Bc4, which prepares Qb3 to target f7 and b7. This is also the most popular move in practice, appearing in 155,606 games. After Bc4 Nf6 Qb3, your best reply is …d5, challenging the bishop and opening the centre.
What should I do if White plays bxc3?
Be happy! bxc3 is a mistake that loses about 1.1 pawns according to the engine. White scores only 36.6% from this move, meaning you win nearly two-thirds of games. Just develop your pieces, castle, and target White's weak doubled c-pawns on the open c-file.
Is Bd3 a mistake for White in this line?
Bd3 is not a outright blunder but it's an inaccuracy that loses roughly 0.9 pawns. White scores just 49.4% from Bd3 compared to 57.1% from the best move Bc4. The bishop is less active on d3, so you can develop with …Nf6 and keep your extra pawn comfortably.
How many games feature the Philidor Defense: Exchange Variation: c3?
Over 283K Lichess games have reached the Philidor Defense: Exchange Variation: c3 position. White wins 55.3%, Black wins 41.3%, with 3.4% draws — based on real rated games.