The Tennison Gambit is a daring chess opening that is not frequently played in high-level competitions, but can be a fun and effective way to surprise your opponent in casual games. Chess enthusiast Otto Mandrup Tennison (1834-1909) was the pioneer in extensively studying this opening.
Check the most widely known trap that can be particularly effective against opponents that don’t like to defend against unusual openings:
As with any gambit, it’s important to be aware of the potential drawbacks and to be prepared to adapt to your opponent’s responses.