Zukertort Opening: Kingside Fianchetto
A04 1. Nf3 g6
White scores 47.5% here across 570 club games — but the 31.6% who answer d4 score 43.1%, 4 points worse.
What White actually plays here
Across 570 games from a Lichess-derived book of club play, White scores 47.5% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| d4 | 180 | 31.6% | 43.1% | below the line |
| g3 | 120 | 21.1% | 47.9% | holds up |
| e4 | 90 | 15.8% | 53.3% | holds up |
| c4 | 62 | 10.9% | 45.2% | holds up |
| Nc3 | 35 | 6.1% | 58.6% | holds up |
| e3 | 27 | 4.7% | 48.1% | 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.