The name means "The game of the exact number".
The object of the game is to make mathematical equalities with cards. These ties can be independent of each other (rule A) or dependent on each other (rule B).
Rule A:
The player chooses from his 9 cards those which allow him to establish a tie. For example 4 = 4 or 4 + 2 = 6. There can only be one sign on each side of the = sign. Each tied tie will be worth points according to the value of the cards. If he cannot lay a tie, he must draw a card and get rid of a card in hand. The round ends when a player empties his hand. He then obtains a bonus of 50 points. The first player with 1000 points wins the game.
Rule B :
The game begins the same way as rule A with 8 cards instead of 9 for each player. The player must re-use one card already on the table to build their equality, using the same building spirit as the scrabble game.