Vienna Game: Anderssen Defense
C25 1. e4 e5 2. Nc3 Bc5
White scores 51.1% here across 887 club games — but the 6.4% who answer d3 score 46.5%, 5 points worse.
What White actually plays here
Across 887 games from a Lichess-derived book of club play, White scores 51.1% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| Nf3 | 382 | 43.1% | 51.2% | holds up |
| Bc4 | 241 | 27.2% | 52.3% | holds up |
| f4 | 110 | 12.4% | 51.4% | holds up |
| d3 | 57 | 6.4% | 46.5% | 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.