Ochinai Tromino | Pack & Not Fall (2-in-1)

Two puzzles in one - each box is a different challenge. Goal: pack 9 tromino pieces into the box so that no piece sticks out. The puzzle is solved when no pieces fall with the large hole facing down. The name 'Ochinai' means 'won't fall out' in Japanese - and that constraint is exactly what makes this puzzle so devious. The notched corner of the box isn't decoration. It's the challenge. What's special about Ochinai Tromino? Develops advanced 3D spatial reasoning Unique constraint adds a whole new layer of difficulty Two boxes included! Designed by Hiroshi Fujino