Pendroid

Pendroid is a puzzle app using pentominoes - geometric shapes made from five squares combined in different ways. The concept was proposed in a 1965 book "Polyominoes" by Professor Solomon Goulomb.

There are twelve basic shapes, which can be flipped and rotated and placed together to make a variety of shapes. Your job is to combine the pieces in order to make the shapes.

it looks hard, and I guess it probably is. But patience is a virtue, and if you long-click on the puzzle(s) at the bottom of the screen, you'll see some handy hints to get you started.

It's also helpful to know most puzzles have many different ways to solve them and still get the same answer. So don't get disheartened.

Enjoy!