The equator is a simple and enjoyable puzzle game which involves formation of mathematical equations. It has a puzzle window with several numbered tiles. Basically, a player selects three numbered tiles. Out of the three selected tiles, the first two are either added, subtracted, multiplied or divided. The result has to be the third tile. Always the three selected numbers have to be adjacent to one another. For example if a player select tiles with numbers 2, 3 and 6, the game automatically adds a multiplication sign so that the equation 2X3=6 is eventually arrived at.