Caro-Kann Defense: Main Line
B15 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4
Black scores 48.0% here across 2,183 club games — but the 8.9% who answer Nd7 score 37.9%, 10 points worse.
What Black actually plays here
Across 2,183 games from a Lichess-derived book of club play, Black scores 48.0% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| Nf6 | 1,079 | 49.4% | 48.6% | holds up |
| Bf5 | 831 | 38.1% | 49.9% | holds up |
| Nd7 | 194 | 8.9% | 37.9% | below the line |
| e6 | 33 | 1.5% | 40.9% | 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.