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Overview

In Rummikruss, players place cards of different colors to create connected patterns. The goal is to maximize your score by forming sets while blocking your opponent's moves.

Setup

• Decide hyper-parameter
  • b := board size (5-20 squares)
  • n := number of colors (1-8)
  • c := largest number in the deck (5-16)
  • r := number of repetitions of cards with the same color. A few randomly selected cards will be placed on the board.

Game Rules

Basic Placement Rules

1. Players alternate turns placing cards on empty board cells.

2. Card placement must create a valid set:

   • Ascending or descending sequence (e.g. with the same color).
   • Repeated number in different colors (e.g. blue 4, red 4, yellow 4).

3. Placement Restrictions:

   • Cards can only be placed in empty cells.
   • Must connect to form a valid set.
   • Last played card blocks all cards of the same color and all cards of the same number for the next player.

Scoring Mechanics

• The score is updated as the length of the largest sequence made by the newly added card (see example 1 below).
• If the placed card connects two disconnected blocks the new score is the total number of connected cards containing the placed card (see example 2 below).

Scoring Examples

Scenario	Placement	Points Earned
	Yellow 2	3 points (3 connected '2's)
	Blue 6	6 points (connecting blue, red, yellow cards)

Winning the Game

• Game ends when:
  • All cards are played or,
  • no valid moves remain.
• Highest total score wins.