Opening Leak Lab

Benoni Defense: Old Benoni

A43 1. d4 c5 2. d5 d6

White scores 50.0% here across 1,173 club games — but the 24.3% who answer dxc5 score 46.0%, 4 points worse.

What White actually plays here

Across 1,173 games from a Lichess-derived book of club play, White scores 50.0% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
d5 426 36.3% 53.6% holds up
dxc5 285 24.3% 46.0% below the line
Nf3 137 11.7% 47.8% holds up
e3 133 11.3% 54.5% holds up
c3 94 8.0% 48.9% holds up
c4 34 2.9% 39.7% 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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