Designed Naoyuki Iwase circa 2012
(wood tray with 8 pieces, 4 inches square by 1/4"thick)
Below is the problem shown on the puzzle directions.
The fit of this puzzle is sufficiently loose that it can be solved by rotating and manipulating pieces in a non-rectilinear fashion, but a soution using rectlinear movement is also possible. The following page presents a 32 rectilinear moves solution.
