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 and must sum to the small clue, if given.
Digits along arrows sum to the digit in the attached circle.
Have fun, leave a comment if you enjoy the puzzle!
Solution code: Row 8
on 4. July 2025, 19:58 by Nemefish
I don't know why puzzles that mix shading and sudoku cause my brain to produce so much dopamine, but I will stop worrying about it and just be grateful that the puzzles are here to solve.
on 6. June 2025, 13:49 by Donatello_86
very cool parity logic
on 6. June 2025, 06:42 by takeponmaki
Always having fun with the oil puzzles. thank you.
on 3. June 2025, 16:49 by Rockon101000
I believe this is my favorite oil and water puzzle I've completed. Lovely setting.
on 2. June 2025, 20:58 by HydTheHydre
Well, I enjoyed it very much. Got a lot to catch on this series!
on 2. June 2025, 19:55 by PinkNickels
Super fun!
on 2. June 2025, 19:42 by Adrian71
Very enjoyable puzzle, thanks for setting!
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.