Sliding Three

Designed by Peter, Serhiy, and Serhiy Jr. Garbarchuk; made by Diniar Namdarian 2012.
(two layers laser cut plastic 3.2" x 5.5" x 3/4", with 9 single layer laser cut pieces,
and directions that show the two problems above;
board has a 1 unit wide rim enclosing a 6 unit high by 12 unit wide area;
the square, two circles, and two green semi-circles are all 2 units high by 2 units wide;
the pieces around the circles are 2 units high by 4 units wide,
and the big green pieces are 4 units high by 5 units wide)