[2] According to Scarne,[3] its origin has been variously claimed by the Dutch, Swiss, French, and Hungarians.

Parlett unequivocally states that its family of games originated in the Netherlands and is now most-developed in Switzerland.

[4] Klaverjas is played clockwise by four players in two teams, partners sitting opposite as in whist.

It uses a piquet deck, i.e. a set of 32 cards in the four French suits: Ace, King, Queen, Jack and 7–10.

If the partner is already heading the trick, the requirement to trump is relaxed and the player may play any card.

Additional points are scored by players who have certain combinations in a single trick: Four cards of the same rank (very rare) – 100 (or 200 for four jacks), 3 or 4 consecutive cards in the same suit – 20/50, King and Queen of trumps ("Stuk") – 20.

These additional points combinations are called "roem", and must be declared explicitly, otherwise they don't count.

At the end of each round, all points are tallied (card values and the last trick plus roem).

It is the famous two-hand game played by the Broadway characters in Damon Runyon’s stories.