Frozen Ice Cubes Fall Strategy Challenge is a deceptively good set of puzzles. The object is to move one ice cube to one pail. The ice cubes can drop into the pails from the top or sideways - okay that's a bit weird. Ice cubes travel together - right, left, down, but never up.
Frozen Ice Cubes Fall Strategy Challenge reminds me of another outstanding puzzle app game: Vubu: http://gottasolveit.blogspot.com/2012/09/vubu-puzzle-app-for-iphone-ipad-review.html
This is the second time in recent memory that ice cubes have been used as a puzzle element: http://gottasolveit.blogspot.com/2013/02/puzzle-retreat-puzzle-game-app-for.html
Great feature of this game: each level can be solved at 3 modes: easy, medium, hard. Essentially, the easy modes allow you to solve the same puzzles with more moves. Regardless, some of the puzzles are hard with an unlimited number of moves. Tricky is a better word.
There are 120 levels & I've done 63 so far.
Undone Panda has done a great job here with this puzzle game app.