Bishop's Opening: Boi Variation
C23 1. e4 e5 2. Bc4 Bc5
White scores 49.8% here across 813 club games — but the 17.8% who answer d3 score 44.1%, 6 points worse.
What White actually plays here
Across 813 games from a Lichess-derived book of club play, White scores 49.8% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| Nf3 | 224 | 27.6% | 54.7% | holds up |
| d3 | 145 | 17.8% | 44.1% | below the line |
| Qh5 | 141 | 17.3% | 59.9% | holds up |
| Qf3 | 78 | 9.6% | 37.8% | below the line |
| Nc3 | 70 | 8.6% | 47.1% | holds up |
| c3 | 66 | 8.1% | 53.8% | holds up |
| Bxf7+ | 48 | 5.9% | 50.0% | 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.
Related openings
- Bishop's Opening C23