Yusupov-Rubinstein System
A46 1. d4 Nf6 2. Nf3 e6 3. e3
Black scores 43.7% here across 420 club games, and no common reply does noticeably worse than the rest.
What Black actually plays here
Across 420 games from a Lichess-derived book of club play, Black scores 43.7% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| d5 | 186 | 44.3% | 46.0% | holds up |
| c5 | 85 | 20.2% | 44.7% | holds up |
| b6 | 68 | 16.2% | 47.8% | holds up |
| Be7 | 37 | 8.8% | 43.2% | 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.