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Puzzle 60 solution - 37 parts

I independently arrived at something very similar to Samuel’s 40-part solution, but with the gear bits in a mirror-image orientation, which seems to make things a little more compact:



The blue lever is used to start, and the output will always be a red ball. There appears to be a condition where a ball could fall off the left-most gear bit, but in practice this won’t happen because a red ball always winds up in one of the interrupters before a blue ball can come through with the gear bits pointing right.

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I’ll see your 37 parts and raise you an always output blue (matching the illustration): start with the red lever.


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