Water Sort Puzzle

Tap on a glass to pick it, then tap on another glass to transfer the water. You can only pour water if the surface color of the first glass is the same as the top color of the second glass or if the second glass is vacant. Arrange the colored water so that each glass contains only a single color. Solve all the glasses to progress to the next level. Employ strategy to stop getting stuck with unmovable colors. Remember that some levels may demand several attempts to finish.