Chessy
Philidor Defense: d4 – Playing Black After 3...exd4
After 1.e4 e5 2.Nf3 d6 3.d4 exd4, you've reached the key branching point of the Philidor Defense. You've declined a symmetrical centre and chosen a solid, counterpunching setup instead. The statistics from over 12.8 million games tell a clear story: at this exact position, White wins 51.1%, Black wins 44.7%, and only 4.3% end in draws. That low draw rate hints at sharp, imbalanced play — this isn't a quiet waiting game. Below you'll find the engine's verdict, the best move White has, the most common replies you'll face, and exactly which White moves are giving you free winning chances. Jump into the interactive drill after the lesson to practise the critical responses.
Play the Philidor Defense: d4 against the engine
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Ready to test your reactions? Jump into the interactive board and face the Philidor Defense: d4 position as Black — the engine will adapt to your level and help
Create a free account →The Engine's Verdict – Honest but Not Hopeless
Stockfish evaluates this position as +0.73, a clear edge for White. That means you are worse right from the start — objectively, White has a comfortable advantage to work with. But don't let that number scare you off. A +0.73 edge is real but it is not crushing; it demands precise play from both sides. Your job is to know exactly where White's advantage comes from (central control and a lead in development) and how to steer for positions where that edge becomes hard to convert. The engine's best continuation is 4.Nxd4 Nf6 5.Nc3 Be7, a natural developing sequence that keeps Black solid without obvious weaknesses.
The Critical Sidelines – White's Most Dangerous Alternatives
While 4.Nxd4 is the engine's top pick and by far the most popular move (9,576,996 games), you will face other tries on a regular basis. Here is how each scores for White across the Lichess database, so you know what to expect:
Three Mistakes White Makes – Your Chance to Strike
The statistics flag three subpar moves that hand you serious winning chances. Recognise them and you'll punish them on the spot. 4.c3 is an inaccuracy (White loses about 0.9 pawns of advantage; the engine says Nxd4 was better). Played in over 311,000 games, it scores 55.1% for White — solid at club level but objectively inferior. 4.Ng5 is worse: a full mistake that costs White roughly 1.8 pawns. Interestingly, despite being a mistake, White only scores 46.7% from here — the lowest of any main line. That means you are already the favourite. 4.Bd3 is another inaccuracy (losing about 0.9 pawns), with White scoring a poor 46.1%. These three moves are gifts if you recognise them.
The 4.Qxd4 Line – Equality Within Reach
After 4.Qxd4 (nearly 2 million games), White scores 50.0% — perfectly equal in practical terms. This line is less threatening than 4.Nxd4 because the queen comes out early and can become a target. Your typical plan is to chase the queen with tempo-gaining developing moves like Nc6, gaining time while bringing your pieces out. The balanced score (50.0% for White, meaning you score 50.0% as Black) confirms this is your best chance at full equality if White avoids the engine's top choice. Practise the queen-chase setups in the drill below.
Results across 12,853,473 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| Nxd4 | 9,576,996 | 51.1% |
| Qxd4 | 1,995,964 | 50.0% |
| Bc4 | 762,929 | 52.9% |
| c3 | 311,935 | 55.1% |
| Ng5 | 136,043 | 46.7% |
| Bd3 | 15,277 | 46.1% |
Frequently asked questions
Is the Philidor Defense a good opening for beginners?
The Philidor Defense (1.e4 e5 2.Nf3 d6) is an excellent choice for beginners because it develops along natural, principled lines and avoids mountains of theory. After 3.d4 exd4 you reach the tabiya shown here — a position that rewards understanding over memorisation. The engine says White is better (+0.73), but the position is rich in counterplay and the low draw rate (4.3%) means you'll get an instructive fight every time.
What is White's best move after 3...exd4?
The engine's best move is 4.Nxd4, continuing with Nf6 and Nc3 Be7. This is also the most popular choice in practice, with over 9.5 million games. White keeps a +0.73 advantage by developing naturally and maintaining central pressure. As Black, you should know that 4.Nxd4 is the critical test — if you defend this line well, the rest of White's options are less dangerous.
Which White moves are mistakes in the Philidor d4 line?
Three subpar moves are flagged by the engine: 4.c3 (an inaccuracy, losing about 0.9 pawns), 4.Ng5 (a mistake, losing about 1.8 pawns), and 4.Bd3 (an inaccuracy, losing about 0.9 pawns). All three are inferior to 4.Nxd4. Notably, 4.Ng5 is the worst of them — if White plays this, you are already the favourite (White scores only 46.7% from that position).
How should Black respond to 4.Qxd4?
4.Qxd4 is the second-most popular move (nearly 2 million games) and scores only 50.0% for White — practically equal. Your simplest plan is to play Nc6, attacking the queen with a developing move. After the queen retreats, you follow up with Nf6 and Be7, reaching a comfortable position where White's extra central presence is balanced by your lead in development.