Rules:
Sudoku: Place the digits 1-9 into each row, column and outlined 3x3 box without repeats.
Nurikabe: Shade some cells such that all shaded cells are orthogonally connected without creating a 2x2 area and divides the unshaded cells into blocks of unshaded cells (islands). Each island contains exactly 1 clue, and that clue gives the sum of the digits on the island. All clues (except the given 4, whose shading is unknown) are part of the islands. Digits do not repeat on an island.
Region Sums: No island is contained within a single box, and the sums within the boxes on an island are the same. Different visits to a box DO NOT count separately. (Example: A 36 clue island may have cells in 4 boxes that all sum to 9, or 3 boxes with all summing to 12, or 2 boxes with each box's digits summing to 18.)
Puzzle Links: You can solve the puzzle in either:
Penpa+
CTC
Solution code: Row 5
on 5. July 2024, 17:29 by wuc
My first Nurikabe. No yin yang strats. Just a totally new world. But because of the very clever puzzle I fought through 2 hours. Great journey thx.
on 2. March 2024, 16:32 by Piatato
Excellent construction, fun and smooth solve!
on 9. February 2024, 18:53 by nearestneighbour
Very nice ruleset. I was able to color the entire grid without the "no repeats on an island" rule, but then I got so stuck I decided to reread the rules a couple of times...
on 6. February 2024, 13:34 by puzzlepandit
Awesome, Simply Awesome. Fantastic Puzzle. Superb combination of various variants and basic sudoku. I am amazed.
on 4. February 2024, 23:00 by Myxo
Awesome puzzle!
on 4. February 2024, 14:12 by samuel1997
Wonderful!
on 3. February 2024, 23:15 by RedBarchetta
I was just thinking I would love to do one of those fandangled shading puzzles today, and bam, this marvelous wonder comes along! Thanks!
on 3. February 2024, 22:22 by yttrio
Really fun tropical vacation, thanks!
on 3. February 2024, 22:13 by Christounet
That was fun ! Thanks :)
on 3. February 2024, 20:51 by mayermeight
love puzzles like this, i really enjoyed it, thanks!
on 3. February 2024, 19:55 by Calvinball
Congratulations Niverio on your new promotion to Nurika Bae.
on 3. February 2024, 17:26 by Playmaker6174
Neat and fun puzzle, and that given 4 surely helps a lot near the end x)
on 3. February 2024, 16:25 by MicroStudy
nice island getaway, i met a penguin there and he was very friendly