Opening Leak Lab

Italian Game: Paris Defense

C50 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6

White scores 53.3% here across 1,960 club games — but the 2.2% who answer Ng5 score 37.2%, 16 points worse.

What White actually plays here

Across 1,960 games from a Lichess-derived book of club play, White scores 53.3% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
d3 416 21.2% 53.6% holds up
d4 374 19.1% 54.7% holds up
Nc3 301 15.4% 54.2% holds up
O-O 297 15.2% 53.9% holds up
c3 266 13.6% 53.2% holds up
h3 219 11.2% 53.7% holds up
Ng5 43 2.2% 37.2% 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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