KubiTarock for Windows and Android
Caller solo (Solo-Rufer)
Game Rules > Basic Rules and Game Categories > Caller solo (Solo-Rufer)

As with all caller games, the declarer of a Caller solo must announce a King. As with all solo games, he does not see and does not get the Talon. Therefore, it can be happen, he does not realize that he is playing without a partner until game end. Also, the solo player must take into account that in most rule sets all bonus points are doubled except for Valat. Therefore, if he has no Trula Piece in his hand, for example, it can happen that the opponents will get two points for that.

For a Solo Rufer, you should have 5 good tarocks at minimum. Additionally, one of the following points should be true: