French Defense: Advance Variation — How to Play the c5 Line as White

In the Advance Variation you carve out a space advantage with the pawn on e5. Your pawn chain d4-c3-e5 restricts Black's light-squared bishop and makes it harder for them to develop freely. Black typically wants to chip away at your centre with …cxd4 or …f6, or put immediate pressure on d4 with …Qb6. Your job as White is to keep that centre solid, develop your pieces naturally, and eventually launch an attack on the kingside. The engine's best continuation (Nc6 Nf3 Qb6 a3) shows a typical plan: you meet …Nc6 with Nf3, and when Black plays …Qb6 you defend b2 with a3 before finishing development. You are slightly better from the start, but you need accurate moves to hold that edge.

The raw numbers might surprise you. Across nearly 11.5 million games White wins 45.1%, Black wins 51.1%, and only 3.9% end in draws. Despite the engine saying you have a small plus, Black scores better in practice at club level. This is common in the French — the position looks quiet, but one careless move can lose. The most-played continuation is Nc6 (6.9 million games, White scores just 44.0%). The second most common, cxd4 (1.5 million games), gives White a better score of 48.9%. So when Black trades on d4 early, you actually have a slightly easier time. When Black develops the knight and attacks your queen's flank with …Qb6, you need a clear plan to keep the edge.

One of the most instructive surprises in this position is the move c4. It looks active — you advance your b-pawn and threaten to chase Black's queen — but the engine rates it as a mistake that loses roughly 1.0 pawns. The better move, of course, is Nc6 (developing the knight). If you are playing White and your opponent tries c4, you should be delighted. That move weakens Black's queenside structure and misplaces their pieces. The database shows c4 appears in about 549,000 games, giving White their best score of 49.9% — almost a coin flip, but that number is dragged down by Black not following up correctly. Against a well-prepared opponent, you have a real chance to build an attack.

Black's most popular move is Nc6 (6.9 million games). Your engine-approved response is Nf3, developing and keeping the centre intact. The line continues …Qb6 a3 — the pawn on a3 guards b2 against the queen and keeps your plan intact. Develop your remaining pieces naturally, castle, and then decide how to press the kingside. The second most popular, cxd4 (1.5 million games), is sharpest. You recapture with cxd4 (not with the knight, to keep the centre closed), and now you have a big space advantage and the classic French pawn structure. The third reply, Qb6 (1.46 million games), puts immediate pressure on b2. Your plan is the same as against Nc6: Nf3, a3, and develop. Do not panic about the b2 pawn — a3 buys you time, and if Black takes on b2 the rook on b1 becomes active.