Nimzo-Indian Defense
E20 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
White scores 48.0% here across 1,164 club games — but the 3.5% who answer Qb3 score 40.2%, 8 points worse.
What White actually plays here
Across 1,164 games from a Lichess-derived book of club play, White scores 48.0% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| Qc2 | 207 | 17.8% | 47.1% | holds up |
| Nf3 | 190 | 16.3% | 47.9% | holds up |
| e3 | 182 | 15.6% | 45.6% | holds up |
| Bg5 | 170 | 14.6% | 50.3% | holds up |
| Bd2 | 159 | 13.7% | 51.9% | holds up |
| a3 | 107 | 9.2% | 47.7% | holds up |
| Qb3 | 41 | 3.5% | 40.2% | below the line |
| f3 | 39 | 3.4% | 46.2% | holds up |
| g3 | 29 | 2.5% | 65.5% | holds up |
| Bf4 | 27 | 2.3% | 46.3% | 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.