Klaverjassen

Objective of the game:
The game is played clockwise by four players in two teams, partners sitting opposite. North plays with South and West plays with East. The player who starts the game determines which players form a team by pointing them to their place at the table. Players can choose the trump card per turn and start. You do this by winning tricks with your partner. The team that has won the most points after 8 tricks has won the game.

Game Rules:
1. The first player prepared to start chooses a trump suit and thereby becomes obliged to win the deal. Various versions handle the special case when all players pass differently.
2. Players must follow suit if they can, and the highest trump in the trick, or in the absence of trumps the highest card in the suit of the first card, takes the trick.
3. Rotterdam rules: A player who cannot follow suit must trump if possible. A player who plays a trump must head the trick if possible, even if the player's partner currently heads the trick.
4. Amsterdam rules: Undertrumping is only allowed when it cannot be avoided. A player who cannot follow suit and whose partner is not heading the trick must head the trick if possible.
5. Both rules agree that following a trump lead all players must head the trick if they can.
6. Trump cards have a different value than normal cards and overrule normal cards.
7. Normal card values: Seven=0, Eight=0, Nine=0, Jack=2, Queen=3, King=4, Ten=10, Ace=11.
8. Trump card values: Seven=0, Eight=0, Queen=3, King=4, Ten=10, Ace=11, Nine=14,Jack=20.
9. Additional points can be gathered by scoring roem. Three sequential cards of a color is 20 roem. Four sequential cards of a color is 50 roem. Four of the same cards (4 x 10) is 100 roem. Four Jacks is 200 roem.
10. The player that wins the round will start the next one.
11. The team that started the round should have more than half of the total amount of points at the end of the round. If you do not have enough points your opponents will receive all the points including possibleadditional points called roem.
12. After eight rounds all points will be counted. The couple with the most points is the winner.

Normal cardvalues:
Seven 0
Eight 0
Nine 0
Jack 2
Queen 3
King 4
Ten 10
Ace 11
Trump cardvalues:
Seven 0
Eight 0
Queen 3
King 4
Ten 10
Ace 11
Nine 14
Jack 20

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