St. George Defense
B00 1. e4 a6
White scores 47.2% here across 508 club games — but the 32.1% who answer Nf3 score 44.2%, 3 points worse.
What White actually plays here
Across 508 games from a Lichess-derived book of club play, White scores 47.2% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| d4 | 220 | 43.3% | 49.1% | holds up |
| Nf3 | 163 | 32.1% | 44.2% | below the line |
| Bc4 | 48 | 9.4% | 52.1% | 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.