ShapeShifter

ShapeShifter is a very simple, yet challenging puzzle game. The goal is to align all the shapes into its respective shape holder. Hearts goes into the heart's slot, clubs goes into the club's slot, etc. Here's how it's tricky: All the shapes will slide in the direction that you swipe unless there is a wall, block, or another shape to prevent it from sliding.

Features:
Ability to generate thousands of puzzles.
Adjustable difficulty: Very easy (2 shapes), easy (3 shapes), medium (4 shapes), hard (5 shapes), and very hard (6 shapes).
Adjustable board size: 6x6, 6x7, 6x8, 6x9, 6x10, 7x6, 7x7, 7x8, 7x9, 7x10, 8x6, 8x7, 8x8, 8x9, 8x10, 9x6, 9x7, 9x8, 9x9, 10x6, 10x7, 10x8, 10x9, and 10x10.