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Monday Mutant 97: Streampunk (no dead ends)

Shade in some cells black such that the black cells are all connected to each other through their edges, and no 2x2 cell area within the grid contains all black cells. Numbers in a cell indicate the sizes of the orthogonally contiguous groups formed by black cells sharing a corner or an edge with that cell. For example, "3" means that the cell shares a corner or an edge with three black cells, and they form a single group, whereas "1 2" means the cell shares a corner with three black cells which form a group of two cells and a single separate cell. Cells with numbers cannot be black. Additionally, every black cell must share an edge with at least two other black cells.

3 comments

Anonymous said...

Great variant.
Great puzzle.

Thx.

TheSubro

Johanna said...

Nice teaser:) but took me a while before I could solve it:)
Check this if you like -
http://www.iqtestexperts.com/brainteasers/

Stumbler's Rider said...

I've noticed with Tapa in general (ok, Streampunk) that a significant amount of the logic involved deals with passing continuous strings of black cells into regions more-or-less cordoned off by clues. I really like this sort of 2nd-tier logic. (It's not global, and it's not local. I'm not sure what else to call it.) I saw a bit of 2nd-tier logic in this variant as well, but rather than trying to find paths into or out of cordoned regions I was having to find paths that didn't dead-end. I would love to see some isolated case-studies for this sort of thing, since it seems to only show up in broader puzzles.

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