Kevin Sadler wrote about it:

“Another challenge from Osanori-san, this one consists of one made from Bubingo and a 6 piece set of plate burrs made from Limba. It is remarkably beautiful. Originally I thought it was just a framed burr of 6 boards but it’s not The boards are held apart by the frame to fully ensure they work together and are only caught by the end boards of each board There are a few possible moves at the start but the paths they are mostly blind 1 or 2 moves This means no big long barren paths to. It requires looking for something that leads somewhere and looking for the desired move that opened the puzzle for further exploration, which was fairly quickly after only 6 moves, allowing you to see inside and better understand how the pieces interact with each other after removing the first piece, it doesn’t get any easier and the puzzle turns into an almost unraveling puzzle – it’s like untying a knot inside, suddenly seeing only a small part of the knot.