Dutch Defense
A80 1. d4 f5
White scores 47.1% here across 809 club games — but the 9.5% who answer e3 score 42.9%, 4 points worse.
What White actually plays here
Across 809 games from a Lichess-derived book of club play, White scores 47.1% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| c4 | 332 | 41.0% | 47.6% | holds up |
| Nf3 | 103 | 12.7% | 49.5% | holds up |
| e3 | 77 | 9.5% | 42.9% | below the line |
| Nc3 | 74 | 9.1% | 52.0% | holds up |
| Bf4 | 47 | 5.8% | 37.2% | below the line |
| f4 | 38 | 4.7% | 53.9% | holds up |
| c3 | 29 | 3.6% | 31.0% | below the line |
| g3 | 29 | 3.6% | 56.9% | holds up |
| h3 | 29 | 3.6% | 39.7% | 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.