_Masterwits_ is a version of _Mastermind_ for the VIC-20 home computer. The
object is to guess a random combination of four colors determined by the
computer out of six, and the player must use the keys 1 through 6
corresponding to each color listed at the bottom of the keys. Once the player
makes their selection, one of two arrows will appear. A black up arrow
indicates the correct color in the correct position, while a white up arrow
indicates the correct color, but in the wrong position. When the player has
four black arrows, they will win the game.