Opening Leak Lab

Kádas Opening

A00 1. h4

Black scores 61.5% here across 591 club games — but the 5.4% who answer e6 score 56.2%, 5 points worse.

What Black actually plays here

Across 591 games from a Lichess-derived book of club play, Black scores 61.5% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare Black scoresVerdict
e5 233 39.4% 63.1% holds up
d5 140 23.7% 58.6% holds up
c5 43 7.3% 60.5% holds up
e6 32 5.4% 56.2% below the line
h5 27 4.6% 64.8% 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.

Analyse my games

Related openings