original_query: What is the purpose of doubling or multiplying the basic tariff in Schafkopf?
query: What is the purpose of doubling or multiplying the basic tariff in Schafkopf?
answer: Doubling or multiplying the basic tariff in Schafkopf increases the stakes of the game, adding excitement and potentially greater rewards for the winners.  This can be triggered by various actions like successfully making a challenging contract (like a Tout), or by players' actions such as 'laying' or using 'Contra' and 'Re'.