Three Glass Puzzle is a simple and addictive puzzle game. You have 3 glasses of orange juice. The biggest one is always full of orange juice. The two other glasses are always empty. The target volume is on the top-left of your screen. You need to pour out the target volume of orange juice within the best number of moves by simply dragging and dropping one of the three glasses into another.

Here is the original puzzle: http://www.cut-the-knot.org/water.shtml