London System
Stockfish 16.1 · runs in your browser1.d4 Nf6 2.Nf3 g6 3.Bf4 · For White · ECO A48 to D02
The example line for London System is 1. d4 Nf6 2. Nf3 g6 3. Bf4. Explore 8 saved positions and compare up to three engine continuations per position. The saved Stockfish 16 analysis reaches depth 16, with scores in pawns from White's perspective. Step through the opening on the board and try a continuation to explore the resulting position.
By Chessvia · Updated Oct 18, 2026
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London System
1.d4 Nf6 2.Nf3 g6 3.Bf4
Stockfish 16 · depth 16 · + favours White
Level +0.11
Engine lines
After 4.e3: 3...Bg7 4.e3
Level +0.07
Play this linePoisoned Pawn Variation: 3...c5 4.e3 Qb6 5.Nc3
Level +0.14
Play this line