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Heyawake

Posted: Wed 04 Jan, 2023 9:06 pm
by pinkagape
I'm starting to like Heyawakes but I also feel like I keep getting to a point where I just have to guess and hope.

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This is Tawan Sunathvanichkul's Heyawake from his lovely Tam Box Bulletin (issue 8). I've worked it through to nearly the end. Am I supposed to guess or is there something I can do here to finish it logically?

Re: Heyawake

Posted: Thu 05 Jan, 2023 12:07 am
by Nilz
R5C5 can't be black or it almost immediately fails (by connecting the black cells from top to bottom). It looks like it should fall out quite quickly after that.

Re: Heyawake

Posted: Thu 05 Jan, 2023 4:54 am
by pinkagape
Yes, that makes sense. I think looking for those chains which connect to the walls is the technique I’ve been starting to use more.