King's Indian Attack
A07 1. Nf3 d5 2. g3
Black scores 43.1% here across 1,144 club games — but the 15.6% who answer c5 score 37.1%, 6 points worse.
What Black actually plays here
Across 1,144 games from a Lichess-derived book of club play, Black scores 43.1% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| Nf6 | 278 | 24.3% | 40.3% | holds up |
| Nc6 | 248 | 21.7% | 50.8% | holds up |
| c5 | 178 | 15.6% | 37.1% | below the line |
| e6 | 104 | 9.1% | 40.9% | holds up |
| c6 | 90 | 7.9% | 43.3% | holds up |
| Bg4 | 77 | 6.7% | 42.9% | holds up |
| Bf5 | 71 | 6.2% | 50.7% | holds up |
| g6 | 30 | 2.6% | 35.0% | 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.