TKD Bros Inc. (Taito-ku, Tokyo), which introduces unique overseas games, puzzles, and lifestyle products to Japan, will be the first in Japan to pre-sell "Black Box Puzzle," planned, manufactured, and sold by German game maker MiSu Games, on Makuake, a crowdfunding service for new products and experiences, starting June 25, 2026 (Thu). Sales Period: June 25, 2026 (Thu) - August 7, 2026 (Fri) Product Page: https://www.makuake.com/project/blackboxpuzzle/ Reservations accepted with up to 39% off. ✅【Don't Know What You'll Make】A new sensation jigsaw puzzle where you assemble pieces without a picture of the finished product. ✅【Immersive Experience】Lose track of time and get absorbed! A fun analog experience for digital detox. ✅【Recommended by a Neuroscientist】Endorsed by popular neuroscientist Dr. Kikunori Shinohara, who has made numerous TV appearances. 【Product Features】 "I don't know what I'm assembling." Unlike traditional jigsaw puzzles where you assemble while looking at the finished picture, Black Box Puzzle is a rare 1000-piece jigsaw puzzle in the world where you don't know what picture will be completed until it's done. Players are given only a "theme" and "difficulty level." By gradually assembling the pieces using colors and patterns as clues, "Could it be...?" "So this was the picture!" You'll approach completion while experiencing surprise and discovery many times over. It's a new puzzle experience that allows you to enjoy the excitement of deduction and the catharsis of completion simultaneously, in addition to the sense of accomplishment of a traditional jigsaw puzzle. Furthermore, this product has received the recommendation of neuroscientist Dr. Kikunori Shinohara, known for his appearances and supervision on numerous TV and radio programs such as "Quiz! Brain Bell Show" and "Konya wa Nazotore" (Fuji TV). Dr. Shinohara evaluates the product's characteristic of assembling while imagining the whole from parts without a finished picture as a new puzzle exp