Dr. Volker Latussek wrote about it:

“A while ago I was reminded of a deformed Tetracube when I was looking at a sculpture by the Spanish artist, Carlos Albert. Perhaps that’s not that surprising, given that Carlos Albert forges his sculptures from solid square steel. While for PETIT SUCRIER I had set myself the task of incorporating as many openings as possible into the 3x3x2 box as a tribute to Frederic Boucher, when playing with the deformed Tetracubes it quickly becomes clear that the lack of edges allows for rotations that enable new movements; so the task was to find an opening that would allow for an exciting solution.

With the opening of my SIXPACK design, this task was solved. I am delighted every time something new emerges from the interplay of the familiar and observations, but I am especially delighted when you discover and enjoy the dance of the pieces while playing with PETIT ALBERT.”

The goal of the puzzle is to pack all the pieces completely inside the box.