Sicilian Defense: Nyezhmetdinov-Rossolimo Attack
B30 1. e4 c5 2. Nf3 Nc6 3. Bb5
Black scores 48.2% here across 675 club games — but the 17.2% who answer e6 score 44.8%, 3 points worse.
What Black actually plays here
Across 675 games from a Lichess-derived book of club play, Black scores 48.2% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| g6 | 117 | 17.3% | 47.9% | holds up |
| a6 | 116 | 17.2% | 47.4% | holds up |
| e6 | 116 | 17.2% | 44.8% | below the line |
| d6 | 114 | 16.9% | 51.3% | holds up |
| Nd4 | 68 | 10.1% | 58.8% | holds up |
| Qb6 | 48 | 7.1% | 41.7% | below the line |
| Qc7 | 47 | 7.0% | 34.0% | below the line |
| Nf6 | 36 | 5.3% | 58.3% | 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.