Opening Leak Lab

Indian Defense: Anti-Nimzo-Indian

E10 1. d4 Nf6 2. c4 e6 3. Nf3

Black scores 46.6% here across 1,116 club games — but the 18.3% who answer Bb4+ score 41.4%, 5 points worse.

What Black actually plays here

Across 1,116 games from a Lichess-derived book of club play, Black scores 46.6% in this position. These are the replies people choose, and how each one works out.

ReplyGamesShare Black scoresVerdict
d5 480 43.0% 46.2% holds up
b6 217 19.4% 49.5% holds up
Bb4+ 204 18.3% 41.4% below the line
c5 113 10.1% 44.2% holds up
Be7 49 4.4% 50.0% 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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