If you have a Scratcher account, type Y and select your color. If you do not want other players to see you, select Hidden. Use the arrow keys to move your dot to a spot on the line that the equation represents. If you have found your spot, you can press space to make the timer go down faster. If you pick a color please leave the window open for 30 seconds after you finish playing so it reports to the game that you are idle and allows other players to select that color
