Wikipedia
Klaverjas
Klaverjas or Klaverjassen is the Dutch name for a four player trick-taking card game using the piquet deck of playing cards. It is closely related to the card game klaberjass, which is popular internationally and also known as Bela, and various other names. It is one of the most popular card games in the Netherlands, traditionally played in cafes and social clubs. The game offers a considerable level of complexity and depth. It has numerous variants, but the core rules are basically the same.