Queen's Pawn Game: London System, with e6
D02 1. d4 d5 2. Nf3 e6 3. Bf4 Nf6
Black scores 47.8% here across 1,545 club games — but the 8.3% who answer Nc6 score 43.4%, 4 points worse.
What Black actually plays here
Across 1,545 games from a Lichess-derived book of club play, Black scores 47.8% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| Nf6 | 404 | 26.1% | 45.0% | holds up |
| Bd6 | 387 | 25.0% | 49.7% | holds up |
| c5 | 356 | 23.0% | 48.2% | holds up |
| Nc6 | 128 | 8.3% | 43.4% | below the line |
| h6 | 50 | 3.2% | 49.0% | holds up |
| f5 | 44 | 2.8% | 53.4% | holds up |
| a6 | 37 | 2.4% | 55.4% | holds up |
| c6 | 36 | 2.3% | 38.9% | below the line |
"Below the line" means the reply scores at least three points worse than the position does overall. Replies played fewer than 25 times are left out: the sample is too small to read.
Is this costing you anything?
A table of averages cannot tell you whether you go wrong here — only your own games can. Opening Leak Lab reads your Chess.com or Lichess archive, finds the decisions you repeat, and checks each one against this book and a bundled Stockfish.