Opening Leak Lab

Queen's Pawn Game

A40 1. d4

Black scores 45.7% here across 40,173 club games — but the 3.4% who answer g6 score 42.4%, 3 points worse.

What Black actually plays here

Across 40,173 games from a Lichess-derived book of club play, Black scores 45.7% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare Black scoresVerdict
d5 20,703 51.5% 43.8% holds up
Nf6 6,949 17.3% 52.6% holds up
e6 4,678 11.6% 44.6% holds up
g6 1,384 3.4% 42.4% below the line
c5 1,182 2.9% 50.0% holds up
d6 967 2.4% 39.9% below the line
b6 943 2.3% 44.1% holds up
e5 929 2.3% 48.4% holds up
f5 815 2.0% 52.8% holds up
c6 804 2.0% 42.0% below the line
Nc6 329 0.8% 40.7% below the line
b5 294 0.7% 51.5% 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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