Nimzo-Larsen Attack
A01 1. b3
Black scores 54.5% here across 1,142 club games — but the 7.0% who answer e6 score 45.6%, 9 points worse.
What Black actually plays here
Across 1,142 games from a Lichess-derived book of club play, Black scores 54.5% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| e5 | 496 | 43.4% | 53.5% | holds up |
| d5 | 295 | 25.8% | 57.8% | holds up |
| e6 | 80 | 7.0% | 45.6% | below the line |
| Nf6 | 65 | 5.7% | 52.3% | holds up |
| c5 | 55 | 4.8% | 50.9% | below the line |
| b6 | 37 | 3.2% | 44.6% | below the line |
| g6 | 26 | 2.3% | 65.4% | 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.