Mensa Select Winner First one to place the final ball on top of the pyramid wins! Each player gets fifteen balls, either light or dark, and they take turns placing them on a game board that has sixteen indentations on  a 4×4 grid. Once four balls have been placed next to one another in a square, a ball can be placed on top of them. This continues until the fourth level of the pyramid is reached and the last ball placed.  The rules include a variant for children and one for experts so this game is fun for a range of ages.  Plays with 2 Players