#A23: Sukoro

 A good example of a puzzle type that relies on numbers but feels like it might not need to - each number has different properties in the solution. I did end up learning a cool technique involving the parities of 2s and 3s, but I'm unsure if it's required in these puzzles. Sukoro is surprisingly fast at spreading sometimes and has trouble filling in gaps other times, leading to a sort of constrained sprawl that merits its alternate name.

https://puzz.link/p?sukoro/7/4/b12a2a1l1a2a23b

https://puzz.link/p?sukoro/7/7/b12d1b2a1d3k1d1a2g23b

No 12x23 puzzle today, sorry. I've been hard at work on the Day 25 puzzles and I don't know if I'll be able to finish them on time.