#074: Rail Pool (Elimination)

This one has been on my list of Rail Pool variants to try since coming across Elimination Tapa in Toketa Vol. 1 a few months ago. I’ve found it really tough to actually construct this though, so I kept putting it off. That said, I’m quite happy with how this turned out now that I sat down to make one.

If you’re using puzz.link, the answer check should complain about (and highlight) exactly one number in each region.

Rules: Draw a non-intersecting loop through the centres of all cells. Some boldly outlined regions contain number clues. If a straight loop segment visits any cells of a clued region, its length must match one of these numbers. Each number must correspond to at least one such loop segment. Question marks represent any positive integer, but numbers cannot repeat within a region.

Variant: Elimination — Ignore exactly one number in each clued region.