Source Lichess
Black wins at least 19.2 more of every 100 games than it loses
how far wins run ahead of losses, 90% confident
At All Ratings, Tarrasch Defense: von Hennig Gambit keeps Black's wins running +19.2% ahead of its losses at worst, 90% confident, from 9.5K Lichess games. This gambit is effective. Win rate, draw rate and loss rate come from games played December 2023 to November 2025.
| Rating | Edge at worst | Black Win | Draw | Black Loss | Games |
|---|---|---|---|---|---|
| 1200-1399 | −3.6% | 55.6% | 5.2% | 39.3% | 66 |
| 1400-1599 | −12.1% | 46.4% | 6.4% | 47.3% | 211 |
| 1600-1799 | +13.8% | 58.2% | 3.6% | 38.3% | 713 |
| 1800-1999 | +18.8% | 58.8% | 4.8% | 36.4% | 1.9K |
| 2000-2199 | +19.9% | 58.7% | 5.4% | 35.9% | 3.1K |
| 2200-2499 | +17.5% | 56.8% | 6.8% | 36.3% | 2.8K |
| 2500+ | +12.1% | 55.7% | 6.7% | 37.6% | 723 |
At some ratings. Black comes out ahead at 1600+; at the other ratings we can see, the games do not show it paying. Where it pays changes with the clock, so set yours above and look again.
Black wins 57.6% of Tarrasch Defense: von Hennig Gambit games, draws 5.6% and loses 36.8%. That rests on 9.5K games from Lichess.
2000-2199. There Black wins at least 19.9 more of every 100 games than it loses (90% confident), its highest Edge at worst.
Blitz. For Black, the Edge at worst — how far wins run ahead of losses, 90% confident — is +17.2% in Blitz (5.3K games) and +14.7% in Rapid (777 games).
Yes. The first rating where the games do not show Black coming out ahead is 1400-1599 in Bullet and 1400-1599 in Blitz. In Rapid, Black comes out ahead at every rating we can see.
The Tarrasch Defense: von Hennig Gambit is very sharp: 5.6% of its games are drawn, so 94.4% end with a winner.
At 1600+, where Black comes out ahead. At the other ratings we can see, the games do not show it paying. Where it pays changes with the clock, so set yours above and look again.
As White, take the material, then develop fast, castle early, and trade pieces. Give the material back when doing so kills the attack. At 1600+, Black still comes out ahead in these games; at the other ratings we can see, the games do not show the gambit paying.
This rests on 9.5K games from Lichess. Every figure carries the range it is in, 90% confident, and the table above shows how many games sit behind each rating and each clock — the fewer there are, the wider that range.