Impenetrable Knot Sequential Discovery Please understand the number of

Please understand the number of this puzzle that you can purchase is limited to one until the end of 2019

Fortunately

but Yukari hopes you find joy in experiencing moire through Moire Gears

Measurements of the pieces and the tray

It was a good guess and his piece selection was successfully derived with a unique solution of a level 15-5-1-2 puzzle

Impenetrable Knot Sequential Discovery Please understand the number ofThis puzzle requires 11 moves to remove the first piece from the assembled shape and it makes you think that the puzzle is relatively easy considering modern high level burr puzzle designs. And then once you start playing with the puzzle, it changes the shape dramatically and the configuration of the puzzle pieces is difficult to comprehend. Many people will somehow succeed to disassemble the puzzle in a rather short time even not knowing which piece