The mechanics are purely mathematical, with the aim to create the most multiples of the "Core Number" by combining the number values of the 16 coins in play. To win, the player must meet a predetermined quota of coins used while staying within a set number of turns to use them in.
he game takes place on a 4x4 board with a Core Sphere in the center whose number is called the Core Number that ranges from 1 to 9. The four fields around the Core Sphere are reserved for the Entry Coins. The Border Coins are the twelve outer fields.
Each coin is numbered from 1 to 9. The objective is to combine these numbers to achieve multiples of the Core Number.