Play Tangram: To Form Squares (Ad Free) app for iPhone and iPad
Tangrams are Chinese games that use several odd shaped pieces that must be assembles to form a square or other shapes. They are brainteasers that force you to use the cognitive portion of your mind as well as your creative portion. They are very old games that date back to 1813. This is a great game to play alone to test your whits and creativity.
:) :)