robin. on Twitter: "A jigsaw puzzle where all the pieces are corner pieces, by Yuu Asaka. (Image stolen from Reddit.) https://t.co/tsaFTJLnKS" / Twitter
Puzzling Times: Three of the best...
Yuu Asaka's Designey Twist on Jigsaw Puzzles - Core77
Amazon.com: Yuu Asaka Jigsaw Wave Puzzle 5 - Level 8 - Very Difficult : Toys & Games