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Master the Accelerated London System: d6 as White
You have set up the London System with 1.d4 Nf6 2.Bf4, but Black sidesteps the usual lines by playing 2...d6 — the Indian Defense: Accelerated London System d6. Now you push 3.Nc3, and the real fight begins. In this position, the engine gives you a small edge (+0.37), indicating White's setup is healthy and flexible. With over half a million games in the database to draw from, this is a well-tested battleground. Let's look at what works best for you and where most games go from here.
Play the Indian Defense: Accelerated London System: d6 against the engine
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Create a free account →The Engine's Top Move: d5
From the position after 3.Nc3, Stockfish recommends you play d5 — a straightforward central advance that gains space and challenges Black to prove their setup. The engine's continuation continues with e3, a6, and h4, building a solid pawn chain and preparing to develop your kingside pieces. While d5 is not the only good move, it is the one the engine sees as best, and it fits perfectly with the London's patient, space-gaining philosophy. Playing d5 tells Black that you are not afraid of a closed centre — you are happy to build on your territory and bring your pieces to active squares.
What the Statistics Reveal
In 589,369 games from this exact position, White scores a solid 50.7% wins, with only 3.9% draws and Black winning 45.4% of the time. Those numbers show you are doing well out of the opening — you win more than half the time, which is a healthy return at club level. The low draw rate means the position stays sharp and imbalanced, giving you plenty of chances to outplay your opponent in the middlegame. Even when you do not find the computer's first choice, White's results are respectable across almost all Black replies.
How to Handle Black's Most Popular Replies
Black has several common answers after 3.Nc3, and the good news is that you score above 50% against the two most frequent ones, plus one more. Here is what you can expect: - g6 (played in 294,231 games — by far the most popular): White scores 51.3%. This sets up a King's Indian-style fianchetto. Your plan is straightforward: continue with d5 or other developing moves, and be ready to meet ...Bg7 with active play in the centre. - Nc6 (55,030 games, White scores 51.4%): Black immediately attacks your d4 pawn. You can defend it naturally with e3 or even push d5, gaining space. Your winning percentage here is your best against any major reply. - e6 (20,367 games, White scores 50.9%): Black prepares to play ...d5 themselves, heading for French-like structures. Keep developing and maintain your central presence. The only two replies where your score dips below 50% are Nbd7 (46.5%) and c6 (47.8%) — but even there the differences are small, and a solid understanding of the position will serve you well.
A Mistake to Watch For
One of the most instructive patterns in this line involves the move d5 — which the engine recommends — and the reactions it provokes. When Black does not challenge your centre quickly, they can end up in cramped positions where your space advantage tells. The statistics show that the most-played reply, g6, actually gives you slightly better results than Black's overall score. This suggests that many Black players do not handle the fianchetto setup well against your London structure. Your job is simple: keep developing, do not rush an attack, and look for the moment when your space advantage allows you to open the centre on your terms.
Results across 589,369 Lichess games
| Most-played continuation | Games | White wins |
|---|---|---|
| g6 | 294,231 | 51.3% |
| Nbd7 | 60,337 | 46.5% |
| c6 | 56,379 | 47.8% |
| Nc6 | 55,030 | 51.4% |
| Bf5 | 36,817 | 49.9% |
| e6 | 20,367 | 50.9% |
Frequently asked questions
Is the Accelerated London System d6 good for White?
Yes, it is a perfectly sound opening for White. The engine evaluates the position at +0.37, a small edge in your favour, and White wins 50.7% of games from this exact position — a solid score at any level. It is especially good for players who enjoy stable, space-gaining setups without sharp tactical risks.
What is the best move for White after 1.d4 Nf6 2.Bf4 d6?
The best move according to Stockfish is 3.Nc3, which you play here — and after that, the engine recommends pushing d5 next. This central advance claims space and keeps your position flexible. You do not have to play d5 immediately, but it is the computer's top choice and leads to good results in practice.
How do I deal with Black playing g6 in this line?
Black plays g6 in about half of all games from this position — roughly 294,000 games in the database. White scores 51.3% against it, which is above the overall average. Your best approach is to continue developing naturally, maintain your central pawns, and be ready for a standard King's Indian-style battle where your space advantage matters.
Is the Accelerated London System d6 drawish?
Not at all. Across nearly 590,000 games, only 3.9% ended in draws. The position remains unbalanced and fighting, giving you many chances to outplay your opponent. This is an excellent choice if you want a safe opening that still leaves everything to play for in the middlegame.