Opening Leak Lab

Queen's Pawn Game: Symmetrical Variation

D02 1. d4 d5 2. Nf3 Nf6

White scores 54.2% here across 1,427 club games — but the 7.8% who answer Nc3 score 42.8%, 11 points worse.

What White actually plays here

Across 1,427 games from a Lichess-derived book of club play, White scores 54.2% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
e3 520 36.4% 58.3% holds up
c4 263 18.4% 54.9% holds up
Bf4 251 17.6% 57.0% holds up
Nc3 111 7.8% 42.8% below the line
g3 105 7.4% 47.1% below the line
Bg5 72 5.0% 46.5% below the line
c3 45 3.2% 43.3% 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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