Water Sort Puzzle

Press on a glass to choose it, then press on another glass to move the water. Only pour water if the surface color of the selected glass is the same as the top color of the target glass or if the second glass is vacant. Organize the colored water so that each glass contains only a single color. Finish all the glasses to progress to the next level. Employ strategy to stop getting stuck with untransferable colors. Note that some levels may need several attempts to solve.