Astronomer’s Riddle Box by Chris Yates is part of The Baffler Double Trouble series from Brainwright – the most unique jigsaw puzzles on the planet! Now with two layers, each puzzle is randomly designed and cut in the oddest ways to make it as tricky as possible. With no straight edges, no overlapping images and 91 unique shaped pieces… how will you ever complete this? It’s double baffling! Puzzle measures 8.5″ x 8.5″ when complete.