Unique Aquarium Sudoku
(Published on 22. September 2020, 15:17 by Sam Knott)
- Standard Irregular sudoku rules apply (1-9 in each row, column, and marked region)
- Aquarium rules apply: each region must be split/coloured into 'air' (green) and 'water' (blue) cells. (A region can be entirely one type.) All water cells must be below all air cells, and cells in the same row and region must be coloured the same. Additionally, in each region, the digits in water cells must all be larger than those in air cells.
- Each region has a different number of water cells, and all regions have at least one water cell
- Thermometer rules apply: numbers must increase along each thermometer
Edit: you can play it here (f-puzzles): F-puzzles link
Solution code: Input Row 1, left to right, then row 6, left to right, with no spaces.
Comments
on 29. August 2023, 21:15 by dennischen
Super clever!
on 29. August 2023, 00:25 by waffles_the_dog
Really fun puzzle, the logic is super clean and really interesting.
on 28. August 2023, 11:35 by Fool on Hill
Saw a recommendation to try this - glad I did: beautiful logic. Unique fills of various kinds seem to be back in fashion - this is a literally unique fill .. and a great puzzle with it.
on 24. March 2022, 09:48 by AquaRegis
Made an account just to comment on how great this puzzle is! One of the harder ones I've been able to complete and it really rewarded my perseverance.
on 2. February 2022, 03:43 by Vebby
Beautifully flowing puzzle, absolutely loved it! Thanks Sam! :)
on 14. September 2021, 09:33 by dissonance
What a lovely puzzle!
Beautiful design, thanks for sharing.
on 9. March 2021, 13:44 by Krokant
Had so much fun solving this. Beautiful puzzle.
on 18. November 2020, 11:43 by Phistomefel
This puzzle has some really beautiful logic in it. Thanks a lot for constructing it, Sam! :)
Edit: After revisiting this puzzle, I found a few steps that I missed before and I just have to say this is an outright fantastic puzzle. Thanks!
on 18. November 2020, 09:25 by SebastianSimon
Amazing construction, just wow! Love the “meta”-sudoku you play with the “different water levels” constraint.
on 25. September 2020, 22:35 by baku
Awesome puzzle! Thanks for sharing
on 23. September 2020, 10:26 by PrimeWeasel
Loved it! Thanks!
on 23. September 2020, 08:33 by harrison
Thanks a lot Sam. Very clever construction, and a fun solve.
on 22. September 2020, 17:06 by dm_litv
Very nice!
