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Hanayama has done it again, with the cast metal Coaster Puzzle. Three triangular rings are linked in an intricate pattern that forms a circle. Separate the rings to solve the puzzle. And once you have done that, can you put the puzzle back together again? Ukrainian puzzle designer Serhiy Grabarchuk has designed the solution. This amazing cast metal brainteaser puzzle is just one of the many intriguing puzzles from Hanayama.

Difficult Level 4