A 5-out-of-9 shading Nurikabe

Question

Rules of Nurikabe: (copied from here)

Numbered cells are unshaded.
Unshaded cells are divided into regions, all of which contain exactly one number. The number indicates how many unshaded cells there are in that region.
Regions of unshaded cells cannot be (orthogonally) adjacent to one another, but they may touch at a corner.
All shaded cells must be connected.
There are no groups of shaded cells that form a 2 × 2 square anywhere in the grid.

Special rule:

Every row and every column must have exactly 5 cells shaded (and the remaining 4 cells unshaded).

Now, solve the following puzzle. Unlike the last one (where you had to do at least some amount of case bashing), I confirmed there's a clean solving path this time.

CSV:
,4,,,,,,2,
,,,,,,,,
,,5,,,,,10,
,,,,,,,,
,3,,,,,,,
,,,,,,,,1
,6,,,,,,,
,,,,,,,,
,1,,,,,4,,

bobble · Accepted Answer

Note: "islands" are unshaded regions, "oceans" are shaded cells. Also, sorry for the length!
Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

Step 8:

Step 9:

Step 10:

Step 11:

Step 12:

Step 13:

Step 14:

Step 15 (also solution):

Benja · Answer

I don't know if this is for sure the answer, but i think it is.

A 5-out-of-9 shading Nurikabe

2 Answers

Add your own answers!

Ask a Question