Opening Leak Lab

Queen's Pawn Game

A41 1. d4 d6

White scores 60.6% here across 955 club games — but the 21.4% who answer e4 score 56.6%, 4 points worse.

What White actually plays here

Across 955 games from a Lichess-derived book of club play, White scores 60.6% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
c4 350 36.6% 65.9% holds up
e4 204 21.4% 56.6% below the line
Nf3 118 12.4% 62.3% holds up
e3 91 9.5% 57.1% below the line
Nc3 49 5.1% 70.4% holds up
Bf4 34 3.6% 47.1% below the line
c3 25 2.6% 50.0% 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.

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