The Philidor Defense: Bb5+ — Black Stands Equal

In the Philidor, Black's first three moves — e5, d6, and now c6 — form a compact, hard-to-break structure. You are not fighting for White-style space; you are building a fortress. The pawn on d6 guards e5, and after ...c6 kicks the bishop, you will follow up with ...Nf6, ...Be7, and ...0-0. You'll have a perfectly safe king, and your pawn chain e5-d6-c6 makes it awkward for White to blow you open. The engine's best continuation, Be2 Nf6 Nc3 Be7, shows that even the top computer line leaves both sides with simple, natural development and no real weakness.

When you play 3...c6, White has four common replies. Here is how you handle each one, backed by the statistics from the Lichess database. The drill below will train you on all of them, so pay attention to which positions favour you. - Ba4 (played 702,668 times — White scores 48.0%): This is the most popular. White retreats and keeps the bishop. You simply continue developing: ...Nf6, then ...Be7, ...0-0. Your position is solid. - Bc4 (469,638 games — White scores 47.0%): The second most common. White drops the bishop to the c4 square. Your plan is the same — develop naturally — but note that the bishop on c4 eyes your f7 pawn. Be careful not to let White sacrifice there prematurely. Castle early and you are fine. - Be2 (108,890 games — White scores 47.9%): The engine's top choice. This quiet retreat is actually White's most accurate, heading for the line given above. You still just develop: ...Nf6. You are equal. - Bd3 (38,057 games — White scores 41.7%): This is a mistake (an inaccuracy, losing about 0.5 pawns). Black scores 58.3% here — the best result you can expect after any of White's replies. White's bishop does nothing on d3 while blocking the d-pawn. Keep developing and you will have a nice edge.

If your opponent plays Bxc6+, do not panic — you should celebrate. This is a blunder that loses roughly 4.3 pawns according to the engine. In the 2,024 games where this was played, White scored a pathetic 20.2%. After Bxc6+, you recapture and gain the bishop pair, a semi-open b-file, and central control. Your game is already much better. Similarly, Bf1 (6,644 games, White scores 36.9%) is an inaccuracy of about 0.5 pawns. White loses a tempo by moving the bishop back to its starting square. Just develop normally with ...Nf6 and you will have a pleasant position. The key takeaway: recognise these two moves on sight, and know that your position is already winning or close to it.

The raw statistics over 1,331,612 games are remarkably balanced: White wins 47.3%, draws 4.3%, Black wins 48.4%. The draw rate is unusually low — the Philidor Defense: Bb5+ leads to sharp, decisive games where both sides have chances. If you like fighting chess with a clear plan and a solid structure, this opening suits you perfectly. The engine evaluation is +0.13 — essentially equal, meaning neither side has a real advantage. As Black you are not worse; you start from a neutral position and play for a win. That is exactly what a sound defence should offer.