Run it, click on any square to "flood fill" with that color starting with the top-left square. That means that the top-left square and all the squares that it touches of the same color will all change to your clicked color. You win if you can get the whole board to be the same color in 17 clicks or less.
Update 15-Apr-2017: It now gives you the option of re-starting a game, if you lost and want to try the exact same game over again. With enough re-tries, I can usually win. :-) Update 31-Mar-2017: It no longer counts against you if you accidentally click twice on the same color, or click on an unreachable color; it only counts as a click if the new color expands your filled area. Yay! --------------------------------------------- This is a re-write, though not a remix, of two similar games that I liked: "InkSpill" https://scratch.mit.edu/projects/112017405/ by @Transistors and "Flooder" https://scratch.mit.edu/projects/90690167/ by @kieranblackley