With [Nikolaos’s] 3D printed sliding puzzles, this will be a problem of the past! The dovetails, integrated into each piece, keep the puzzle together but still allows pieces to move.

As reported by Sora News 24, one fan took to Youtube to show off their most recent project. It was there Sho Tozuka informed netizens they made a 3D printed Millennium Puzzle that can be solved ...