Sicilian Defense: O'Kelly Variation
B28 1. e4 c5 2. Nf3 a6
White scores 51.9% here across 621 club games — but the 14.2% who answer Bc4 score 44.9%, 7 points worse.
What White actually plays here
Across 621 games from a Lichess-derived book of club play, White scores 51.9% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| d4 | 268 | 43.2% | 51.7% | holds up |
| c3 | 94 | 15.1% | 48.9% | holds up |
| Bc4 | 88 | 14.2% | 44.9% | below the line |
| Nc3 | 56 | 9.0% | 56.2% | holds up |
| c4 | 34 | 5.5% | 58.8% | 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.