Zukertort Opening: Tennison Gambit
A06 1. e4 d5 2. Nf3
Black scores 48.6% here across 2,283 club games — but the 2.9% who answer e6 score 39.6%, 9 points worse.
What Black actually plays here
Across 2,283 games from a Lichess-derived book of club play, Black scores 48.6% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | Black scores | Verdict |
|---|---|---|---|---|
| dxe4 | 1,878 | 82.3% | 49.0% | holds up |
| d4 | 94 | 4.1% | 50.5% | holds up |
| Nf6 | 73 | 3.2% | 48.6% | holds up |
| e6 | 67 | 2.9% | 39.6% | below the line |
| Bg4 | 58 | 2.5% | 49.1% | holds up |
| c6 | 39 | 1.7% | 59.0% | holds up |
| Nc6 | 36 | 1.6% | 34.7% | 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.