Opening Leak Lab

Englund Gambit Declined: Reversed French

A40 1. d4 e5 2. e3

Black scores 47.9% here across 1,129 club games — but the 7.6% who answer Nc6 score 42.4%, 5 points worse.

What Black actually plays here

Across 1,129 games from a Lichess-derived book of club play, Black scores 47.9% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare Black scoresVerdict
exd4 592 52.4% 49.7% holds up
e4 238 21.1% 48.5% holds up
d6 99 8.8% 44.9% holds up
Nc6 86 7.6% 42.4% below the line
d5 37 3.3% 45.9% holds up
Nf6 25 2.2% 40.0% 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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