The London System reaches a named position after 4 moves: 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3
In practical games, this line matters because the early pawn and piece choices decide which middlegame plans are natural. Use the board above to learn the move order, then complete Practice without hints before adding the opening to your regular queue.
If this exact branch does not appear in your games, study the related lines below. Openings often transpose, and recognizing the family pattern is more useful than memorizing one narrow sequence.
The idea behind this line
White builds a dependable d4, Nf3, Bf4 setup and attacks when Black reveals the structure.
What to look for
- Challenge d4 with ...c5.
- Use ...Qb6 to pressure b2.
- Avoid copying moves when an active central break is available.
Position details
This line branches from London System with Bg7.
rnbqk2r/ppppppbp/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R w KQkq - 2 4