Grünfeld Defense
D80 1. d4 Nf6 2. c4 g6 3. Nc3 d5
White scores 51.4% here across 528 club games — but the 26.9% who answer Nf3 score 48.2%, 3 points worse.
What White actually plays here
Across 528 games from a Lichess-derived book of club play, White scores 51.4% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| cxd5 | 222 | 42.0% | 55.9% | holds up |
| Nf3 | 142 | 26.9% | 48.2% | below the line |
| Bg5 | 56 | 10.6% | 57.1% | holds up |
| e3 | 40 | 7.6% | 46.2% | below the line |
| Bf4 | 30 | 5.7% | 46.7% | 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.