Queen's Gambit Declined: Queen's Knight Variation
D31 1. d4 d5 2. c4 e6 3. Nc3
Black scores 45.3% here across 1,450 club games — but the 8.4% who answer Bb4 score 40.6%, 5 points worse.
What Black actually plays here
Across 1,450 games from a Lichess-derived book of club play, Black scores 45.3% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| Nf6 | 946 | 65.2% | 47.0% | holds up |
| c6 | 157 | 10.8% | 44.9% | holds up |
| Bb4 | 122 | 8.4% | 40.6% | below the line |
| dxc4 | 83 | 5.7% | 41.6% | below the line |
| c5 | 74 | 5.1% | 34.5% | 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.