Tenyo Pentomino Square Brain Block Permanent Puzzle Difficulty 4 LEVEL4 Intermediate Advanced Total 16146 Combinations Stretch TBB-04 Just taking out

Product Introduction: The puzzle that can be played forever, Brain Block Tenyo, completely renews the bestselling boxed puzzle "Pura Puzzle." The name is "Brain Block." It is a puzzle that involves fitting beautiful transparent pieces composed of a three-color gradient into a case. Despite having hundreds to thousands of possible solutions, reaching just one of those patterns is quite challenging. Each time you play, the solution changes, allowing for endless play. You can lose track of time while getting absorbed and stretch parts of your brain that are usually not used. Safety Warning: None Difficulty: 4 (16,146 combinations) Recommended Age: 6 years and up Size: 15 x 1 x 17 cm Type: Single item