Sonar Eclipse
(Published on 4. January 2025, 04:53 by marty_sears)
- A black ship lies on every orthogonal edge between two cells with a 1:2 ratio.
- A white ship lies on every orthogonal edge between two cells with consecutive digits.
- A sonar cell is a circle whose 'search radius' includes itself and all neighbouring cells (orthogonally and diagonally.) The digit in a sonar cell indicates how many ships matching the colour of its circle lie FULLY within its search radius.
- Not all possible sonar cells are shown.
- No two sonar cells of the same colour contain the same digit.
Rules:
Fill the grid with the digits 0-8 so that digits don't repeat in any row, column or 3x3 box.
This section of ocean contains black ships and white ships. Visibility is low, but entering correct digits might clear fog somewhere in the grid. No guessing is necessary.
SHIPS:
(Note: it is possible for two different coloured ships to lie on the same orthogonal edge.) A few ships are shown (beneath the fog), but most aren't, and must be located by using sonar.
SONAR:
In this example, the white sonar cell sees 5 white ships within its 3x3 search radius, and so contains a 5. The black sonar cell sees 3 black ships, so contains a 3. Remember: in the grid, most ships will not be shown.
Please leave a comment if you enjoy :)
Solution code: Column 8 reading downwards
Comments
on 15. February 2025, 15:05 by mscha
I kept coming back to this one; it took me forever to get my head around the rules.
But today something clicked, and I managed to solve it. Still tricky, and it didn't make it easier that I kept forgetting to use 0-8. :-)
on 21. January 2025, 03:35 by PancakePie
Another beaut! Had to submerge my brain in the new rule set, but I loved exploring this deep blue!
on 18. January 2025, 12:44 by LukeyDukey
Very cool concept! Would love to see more!
on 10. January 2025, 14:16 by jakestilesowen
Very interesting and fun! Thanks for the puzzle.
on 7. January 2025, 17:05 by konklone
The opening brutalized me a few times, but I got back on my feet. In the end, I had a whale of a time!
on 6. January 2025, 21:21 by Arybar
Great fun. In my head I imagined that the ships that remained invisible after the fog lifted were submarines.
on 6. January 2025, 03:45 by ViKingPrime
A harmonious blend of two great minds! I do love that unique tension you find in collaborative puzzles, yet this felt very much like the two of you were sympatico the whole way through. Looking forward to your next joint venture.
on 5. January 2025, 13:22 by AngusWBA
Amazing puzzle!
on 5. January 2025, 02:40 by CFood
very fun, i love minesweeper. surprisingly pretty easy too. except when i pencil marked 9 a few times and got stuck, lol
on 4. January 2025, 19:52 by QuiltyAsCharged
Very fun! It reminds me of that game, Mine Battle Sweeper Ship
on 4. January 2025, 13:01 by Franjo
It was a whole heap of fun - solving this puzzle. Thank you very much for creating and sharing this one.
on 4. January 2025, 11:16 by Angara
It was amazing adventure
on 4. January 2025, 06:12 by gdc
Lovely idea to use sweeper clues on kropki dots. The dynamic fog certainly helped with guiding the focus. Well done Marty and ChinStrap!
