Ichikarapelago
(Published on 25. May 2026, 14:05 by juggler)
Click on the puzzle image to play
SUDOKU - Place the digits 1-7 once each in every row, column, and irregular region.
ICHIKARA NURIKABE - Divide the map into islands (orthogonally connected groups of cells) and water (a single orthogonally connected group of cells).
- One island has been given.
- Every mountain contains a different digit. A digit N on a mountain indicates that its island has N cells, and contains the digits 1-N once each.
See also
Solution code: Island cells in row 7
Solved by Phurba, mathpesto, LuanMerlin, stranac, Reisen, mellowrobinson, NEWS, Piff, Hari, zeniko, SKORP17, emoney1374, Suntanman3 - Ben, eladv, Moonsinh, Calesch, ThePedallingPianist, karlmortenlunna, ... TalkingFredish, dzamie, sehringdipity, RedBarchetta, 3ColorTheorem, ryan_campbell2010, Exigus, kroutu, dogfarts, amelenty, jkuo7, esumpter, mathhead, Jesper, Don_Huan, pookster, quantumZookeeper
Comments
Last changed on 26. May 2026, 17:32
on 26. May 2026, 17:31 by woody
Thanks for setting and sharing this beautiful nurikabe.
on 26. May 2026, 14:22 by Franjo
Thank you very much for creating and sharing this lovely Nurikabe hybrid. It reminded me of Niverio‘s The Carribean.
on 25. May 2026, 17:40 by mellowrobinson
Very cool! If you ask the right questions at precisely the right time, you'll breeze through it. I was not so clever :P But that just made for a great discovery when I found the logic.
Side note I'm surprised there haven't been more Ichikara variants. Seems like a robust base ruleset that could play well with Sudoku or pencil puzzles.
