Ponziani Opening: Jaenisch Counterattack
C44 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 d5 5. Nbd2
White scores 51.2% here across 939 club games — but the 23.4% who answer d3 score 46.8%, 4 points worse.
What White actually plays here
Across 939 games from a Lichess-derived book of club play, White scores 51.2% in this position. These are the replies people choose, and how each one works out.
| Reply | Games | Share | White scores | Verdict |
|---|---|---|---|---|
| d4 | 514 | 54.7% | 54.3% | holds up |
| d3 | 220 | 23.4% | 46.8% | below the line |
| Bd3 | 60 | 6.4% | 50.8% | holds up |
| Bc4 | 52 | 5.5% | 48.1% | below the line |
| Qc2 | 32 | 3.4% | 37.5% | below the line |
| Bb5 | 26 | 2.8% | 53.8% | 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.