King's Knight Opening
C40 1. e4 e5 2. Nf3
Black scores 44.6% here across 30,236 club games — but the 2.2% who answer Qf6 score 39.7%, 5 points worse.
What Black actually plays here
Across 30,236 games from a Lichess-derived book of club play, Black scores 44.6% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| Nc6 | 18,164 | 60.1% | 46.9% | holds up |
| d6 | 7,181 | 23.7% | 42.0% | holds up |
| Nf6 | 2,393 | 7.9% | 43.4% | holds up |
| Qf6 | 679 | 2.2% | 39.7% | below the line |
| Bc5 | 488 | 1.6% | 38.2% | below the line |
| f5 | 405 | 1.3% | 45.1% | holds up |
| d5 | 356 | 1.2% | 41.2% | below the line |
| f6 | 212 | 0.7% | 25.9% | below the line |
| Bd6 | 158 | 0.5% | 22.2% | below the line |
| Qe7 | 65 | 0.2% | 34.6% | below the line |
| c6 | 30 | 0.1% | 43.3% | 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.