Nurikabe Sweeper Sudoku
(Published on 23. May 2022, 01:37 by KNT)
Shade some cells such that all shaded cells are orthogonally connected, and no 2x2 area may be entirely shaded. We call an orthogonally connected group of unshaded cells an island. Numbers must not repeat on an island, and all islands must contain the number that is its size. A clue outside the grid indicates the sum of numbers on islands in its row or column.
A number in a grey circle indicates how many of the 8 surrounding edges and vertices to that cell are part of the boundary of an island.
A 1-6 example is provided:
Solution code: Column 8
Comments
on 20. April 2024, 17:09 by The Book Wyrm
Nice puzzle!
Good flow, and lots of interesting deductions. Never too difficult, but never easy either.
on 5. August 2023, 19:25 by StephenR
KNT's puzzles often seem to do my head in, and often I break them or think I have broken them when I haven't. It must say something about their quality that I continue to come back to them. This was another excellent one which flowed at times and had my head-scratching muscles fully exercised at other times.
on 10. June 2023, 21:10 by ibag
Wonderful!
on 12. September 2022, 16:48 by Agent
Very enjoyable puzzle! The edge sweeper ruleset works very nicely with nurikabe.
on 23. August 2022, 01:20 by Piatato
Great puzzle! I had some big struggles spotting some very basic nurikabe logic some times. Maybe one beautiful day some time in the future, pencil puzzles will feel less frightening to me than they do now, haha!
on 22. June 2022, 20:18 by PixelPlucker
Wonderful puzzle, thanks! Great variety of logic, and the solve path felt intentionally designed throughout
on 5. June 2022, 11:04 by Christounet
Very nice trip around these islands ! And quite approchable compared to what we're used to with your puzzles ! Thanks.
on 24. May 2022, 23:29 by kolot
Very enjoyable puzzle! Not too difficult and fun to solve. Well done!
on 23. May 2022, 22:40 by Mr.Menace
Very nice puzzle! The ending was great indeed, made me laugh!
on 23. May 2022, 20:15 by Niverio
Very nice hybrid! Cool ending too.
on 23. May 2022, 19:39 by twobear
Great puzzle with very smooth solve. Thank you!
on 23. May 2022, 15:37 by Playmaker6174
Probably I didn't solve that many Nurikabe puzzles but that was so tricky for me, there're lots of potential traps throughout the solve but everything worked really well together and there're lots of brilliant deductions too. Thank you for this great journey x)
on 23. May 2022, 15:19 by Vebby
Very enjoyable! Loved how all the rules came into play in order to make progress. Thanks KNT :)
on 23. May 2022, 12:11 by Jesper
A beautiful puzzle, thanks!
on 23. May 2022, 11:46 by LittleBallOfPurr
Gorgeous puzzle, love the water theme. Challenging, yet approachable with baby steps. Hope to see more of this style/theme, many thanks!
on 23. May 2022, 10:07 by RJBlarmo
Really cool puzzle! Few times I thought I broke it but everything worked out. Fun disambiguating logic at the end.
