Opening Leak Lab

King's Gambit

C30 1. e4 e5 2. f4

Black scores 42.7% here across 3,943 club games — but the 12.0% who answer d6 score 39.0%, 4 points worse.

What Black actually plays here

Across 3,943 games from a Lichess-derived book of club play, Black scores 42.7% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare Black scoresVerdict
exf4 2,110 53.5% 41.9% holds up
Nc6 615 15.6% 39.8% holds up
d6 473 12.0% 39.0% below the line
d5 290 7.4% 52.6% holds up
Bc5 192 4.9% 61.5% holds up
Qh4+ 97 2.5% 45.9% holds up
f6 44 1.1% 27.3% below the line
Nf6 31 0.8% 27.4% 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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