This tricky puzzle by Osanori has an interesting appearance as well as an interesting solution. The two halves of the frame create a maze internally which changes state as you slide the pieces back and forth. The internal pieces dance around, moving in and out and about each other until finally they (hopefully) find their final resting spot with a symmetrical solution. Given a unique level 20.2.5 solution, this could not be called a simple puzzle, but neither is it hopelessly difficult. The obvious constraints of the frame pieces lead to several deductions which should have the astute puzzler solving this in an afternoon. Construction follows our general practice of strength and elegance here at cubicdissection. The top frame joint is reinfirced with a slight shoulder, and the bottom is of course solid wood with the necessary bits sliced out cleanly for a robust assembly. Internal pieces are of course milled from solid wood.
Each signed and dated; 38 copies made for sale. -Eric Fuller (2012)