This genre was inspired by "Ice Walk", but the ruleset is sufficiently distinct that it makes more sense as a standalone genre than variant.
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By drawing the borders around ice regions, it is possible to replicate Ice Walk, as noticed by PinkHoodie:
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Acknowledgements and Changes
2024-12-08 Advariants Regional Walk was released, with rule panels kindly made by PinkHoodie, the genre author, who also sent the cover pic and suggested some implementation improvements, now added. Thank you!
2024-12-08 Thanks to PinkHoodie for transcribing the original set of Regional Walk puzzles and making a new one for rollout & to Anurag Sahay for helping clarifying the rules text.
2024-12-28 puzzletters PinkHoodie set 1 Regional Walk (classic) puzzle - danke!