Opening Leak Lab

Hungarian Opening: Slav Formation

A00 1. g3 d5 2. Bg2 c6

White scores 52.6% here across 417 club games — but the 13.9% who answer e3 score 44.0%, 9 points worse.

What White actually plays here

Across 417 games from a Lichess-derived book of club play, White scores 52.6% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
b3 95 22.8% 51.6% holds up
Nf3 88 21.1% 57.4% holds up
d3 70 16.8% 55.0% holds up
e3 58 13.9% 44.0% below the line
c4 31 7.4% 45.2% below the line
d4 27 6.5% 57.4% 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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