This is a 9x9 map of the ocean - there are ocean cells and island cells.
Normal sudoku rules apply.
Killer sudoku rules apply - digits cannot repeat within a cage with nine or fewer cells and must sum to the number in the top left corner of the cage.
XV sudoku rules apply - cells with an X between them sum to 10. Not all X or V are given.
HOWEVER, 18 cells - two in each box, row and column -are 'island' cells - these do not count toward the cage totals. Only 'ocean' cells count towards cage totals. There can be as many island cells as needed in any cage.
Happy solving!
Solution code: Row 7 and column 9 of the solution.
on 21. August 2024, 22:18 by sujoyku
Wow, what an incredible puzzle this is! Even with your hints, it took me a good deal to understand the true break-in mechanism. But how the puzzle unfolds after that had clicked is out of this world. Superb setting! Thank you for setting and sharing this absolute beauty, SamuPiano!
on 14. November 2023, 11:04 by Bankey
Fantastic puzzle, and lots of fun once you figure out the maths and the break-in. Thanks, @ SamuPiano:).
on 17. July 2023, 02:34 by Ragna
I love Sudoku + Maths! This
puzzle was very very tricky.
Thank you for sharing :-))
on 17. July 2023, 00:27 by lsmooth
Thanks for this really awesome puzzle!
on 16. July 2023, 16:40 by Florian Wortmann
I felt a bit like a non-swimmer here but finally I conquered the seven seas :-) 10/10 puzzle!
on 15. July 2023, 20:44 by Qodec
Fantastic! Thanks so much!
on 15. July 2023, 10:33 by tesseralis
fun puzzle. once you figure out what's going on it literally flowed like water!
on 15. July 2023, 10:09 by Snookerfan
Excellent! Thank you
on 14. July 2023, 01:11 by Myxo
Very interesting puzzle!
on 13. July 2023, 14:25 by RockyRoer
Great puzzle - I enjoyed the islands constraint a lot in both this puzzle and the 6x6 you posted. Thanks for setting!
on 13. July 2023, 04:12 by sanabas
Very interesting breakin, and then flowed smoothly the rest of the way. Fun puzzle.
Difficulty: | ![]() |
Rating: | 95 % |
Solved: | 80 times |
Observed: | 8 times |
ID: | 000EGP |