King's Indian Defense: Orthodox Variation
E91 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2
Black scores 46.3% here across 455 club games — but the 13.6% who answer Nc6 score 41.9%, 4 points worse.
What Black actually plays here
Across 455 games from a Lichess-derived book of club play, Black scores 46.3% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| e5 | 147 | 32.3% | 50.0% | holds up |
| Nbd7 | 83 | 18.2% | 45.2% | holds up |
| Nc6 | 62 | 13.6% | 41.9% | below the line |
| c5 | 50 | 11.0% | 37.0% | below the line |
| Bg4 | 35 | 7.7% | 54.3% | holds up |
| Na6 | 26 | 5.7% | 38.5% | 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.