Modern Defense
B06 1. e4 g6 2. d4 Bg7
White scores 55.1% here across 2,012 club games — but the 9.5% who answer Bc4 score 45.8%, 9 points worse.
What White actually plays here
Across 2,012 games from a Lichess-derived book of club play, White scores 55.1% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| d4 | 903 | 44.9% | 58.3% | holds up |
| Nf3 | 565 | 28.1% | 55.6% | holds up |
| Bc4 | 192 | 9.5% | 45.8% | below the line |
| f4 | 107 | 5.3% | 57.0% | holds up |
| Nc3 | 60 | 3.0% | 53.3% | holds up |
| d3 | 50 | 2.5% | 44.0% | below the line |
| e5 | 39 | 1.9% | 25.6% | below the line |
| c4 | 25 | 1.2% | 56.0% | holds up |
"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.