Four Suits 2

Designed by Serhiy Grabarchuk, made by J. A. Storer 2007.
(4" x 4" x 3/4" wood tray, 7 wood pieces, and black plexiglass keeper)

Move all the pieces clockwise one unit:

Baxter's Page lets you play this puzzle on-line to try to find the 31 move minimal length solution.

Further Reading
Baxter's Page, from: