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I really like this. I could see constructing a physical artifact for a specific case of this game.

According to another comment, the best puzzle with a high number of 6 is [1,6,3] with a minimum of 14 moves.

This would mean you have 6 total rods, and two gutters. The puzzle gutter with a length of 10, and the storage gutter with a length of 11.

If you want more visual symmetry a high number of 7 allows you potentially 2 gutters of length 14.

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Thinking it through a bit more, I would consider a variation on this game, where you don’t have a list but a ring buffer.

Then, you can replace the linear gutter by a circular one and replace the cylinders by parts of a torus. That would make for a cooler look of the game (on the other hand: how would you easily see you’ve completed the puzzle?)

Unfortunately, you won’t be able to put the ‘spare’ parts in a concentric circle as that would have a different radius.

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