@Mysterious-pig. The Purpose of the game is to figure out how the tiles interact with each other. Some trial and error is nessessary, but usually they follow a recognizable pattern. That being said, some are more tedius than others, but all are solvable with a bit of logic and foresight.
As for me, my only problem is that I focus too much and forget what color im supposed to turn them into. Other than that, great game that is sure to boggle the best at some points.