Diagonal Discovery
(Published on 20. July 2026, 16:00 by Blobz)
Oil and Water Puzzle Pack
XII : Diagonal Discovery
Normal sudoku rules apply.
Each cage is either full of "oil" (even digits), full of "water" (odd digits), or a mix of both. In all cases, each "row" within a cage is of just one type (oil or water). Oil floats on water, so even digits will always be in rows above odd digits in mixed cages.
Digits in cages do not repeat.
Digits do not repeat along the marked diagonal.
White dots separate consecutive digits. Black dots separate digits where one is double the other.
The grid is partially covered in fog. Placing correct digits will clear the fog from surrounding cells, possibly revealing more clues.
Have fun, leave a comment if you enjoy the puzzle!
- 0 : Oil and Water Mini
- I : Wet Ratio
- II : Oil, Water, Extenban
- III : Oil, Water, Mirror
- IV : Oil, Water, Circles
- V : Oil, Water, Zipper
- VI : Oil, Water, Glyph
- VII : Oil, Water, Knights 2
- VIII : Liesl does Oil and Water
- IX : Black Sheep
- X : Arrow Mosaic
- XI : Foggy Oil and Water
- XII : Diagonal Discovery
Solution code: Row 3
Comments
on 26. August 2026, 00:53 by itsid
very lovely break in, but I got kinda stuck for a looong time in the end game (yes certainly me...) so I need to add a third star in my book ;-)
great puzzle, but yeah that box 1 was fighting me
@carnac.. I wish it did for me, I must've missed something in that regard...
I had to solve the ambiguity of oil cell positions in box 1 to get a grip on the end game
on 21. July 2026, 23:48 by Snaques
Interesting how this was really easy to get going, but then stalled pretty hard. Admittedly I forgot the rules midway through the puzzle.
on 21. July 2026, 15:52 by abadx
On the top half of 2 stars for me, final disambiguation between 579 triples took a bit too long.
on 21. July 2026, 13:50 by Franjo
Thank you very much for creating and sharing another lovely O&W-puzzle.
on 21. July 2026, 12:21 by Martina
Brilliant smooth logic, I loved it! 2* seems right.
on 21. July 2026, 03:35 by fishsaltyak
Very nice! 1 star for me I think. Thanks!
on 20. July 2026, 19:16 by hardline35
Quite a challenge, but very enjoyable. Thank you!
on 20. July 2026, 17:37 by wuc
Brilliant use of oil water. Fluent great fun 2* thx.
