London System
The London System (ECO A48–D02) is a chess opening that begins 1. d4 Nf6 2. Nf3 g6 3. Bf4.
♜
♞
♝
♛
♚
♝
♜
♟
♟
♟
♟
♟
♟
♟
♞
♟
♟
♝
♞
♟
♟
♟
♟
♟
♟
♟
♜
♞
♛
♚
♝
♜
The main line
The London System is reached by 1. d4 Nf6 2. Nf3 g6 3. Bf4 (ECO A48). It's one of 4 named lines under this opening in the book.
Named variations (1)
- Poisoned Pawn Variation —
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3(D02)
Analyze the London System
Play through this opening on the free analysis board, or review one of your own gamesto see how accurately you handled it — every move classified, with the engine's best line on each mistake.
← Back to all chess openings. New to opening study? See move classifications and the glossary.