Opening Leak Lab

King's Knight Opening: Normal Variation

C44 1. e4 e5 2. Nf3 Nc6

White scores 53.2% here across 18,740 club games — but the 7.7% who answer Nc3 score 48.9%, 4 points worse.

What White actually plays here

Across 18,740 games from a Lichess-derived book of club play, White scores 53.2% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare White scoresVerdict
Bc4 6,324 33.7% 54.5% holds up
Bb5 6,198 33.1% 54.4% holds up
d4 3,036 16.2% 54.1% holds up
Nc3 1,448 7.7% 48.9% below the line
c3 509 2.7% 50.2% below the line
d3 303 1.6% 42.7% below the line
a3 240 1.3% 38.1% below the line
b3 213 1.1% 59.2% holds up
c4 159 0.8% 41.8% below the line
Be2 107 0.6% 40.2% below the line
g3 92 0.5% 52.7% holds up
h3 83 0.4% 44.6% 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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