Trischettn or Treschetten is an old card game from the South Tyrol for two players.
The game is clearly an Austrian variant of Tresette, the major differences being that it is played with a 32-card, German-suited pack rather than a 40-card Italian pack, resulting in a different card ranking, the Tens and Nines becoming the highest rankers in each suit.
It used to be one of the three most common card games in South Tyrol, along with Stichwatten and Labbieten, but is threatened with extinction today.
[1][2] Having been one of the three most common card games in South Tyrol, together with Stichwatten and Labbieten, Trischettn is nowadays under threat of dying out.
[1][2] Nevertheless there are moves to revive it by teaching Trischettn alongside other traditional South Tyrolean card games.
[6] Trischettn is played with 32 cards from a Salzburg pattern pack, the Sixes being removed.
The following examples assume you are referring to the suit of Bells:[6] If your partner signals a high card e.g. a Nine and you want to indicate that you have a low card that you can lead later on for your partner to win the trick, you signal back immediately by playing a card in a large curve across the table (like an exaggerated sign for the Nine).