Opening Leak Lab

Bishop's Opening: Philidor Counterattack

C23 1. e4 e5 2. Bc4 c6

White scores 54.8% here across 405 club games — but the 13.3% who answer d3 score 48.1%, 7 points worse.

What White actually plays here

Across 405 games from a Lichess-derived book of club play, White scores 54.8% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
Nf3 116 28.6% 54.7% holds up
Nc3 56 13.8% 56.2% holds up
d3 54 13.3% 48.1% below the line
Qf3 52 12.8% 52.9% holds up
Qh5 50 12.3% 70.0% 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.

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