Caro-Kann Defense: Exchange Variation
B13 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6
White scores 50.5% here across 494 club games — but the 13.6% who answer Nc3 score 38.8%, 12 points worse.
What White actually plays here
Across 494 games from a Lichess-derived book of club play, White scores 50.5% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| Nf3 | 140 | 28.3% | 50.0% | holds up |
| c4 | 136 | 27.5% | 54.0% | holds up |
| Bd3 | 89 | 18.0% | 57.9% | holds up |
| Nc3 | 67 | 13.6% | 38.8% | below the line |
| Bb5+ | 36 | 7.3% | 33.3% | 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.