So you find regular Rubik’s cubes easy to solve? Then you may want to give the YuXin HuangLong 17x17x17 Magic Cube a look. It comes with 1947 individual pieces with 17 layers. The puzzle is quite massive but turns smoothly.
YuXin HuangLong 17x17 Unboxing! - Highest Order Mass Produced NxN Puzzle | TheCubicle.us
The bad news? Something like this doesn’t come cheap.
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