Logic solvable
Nine Rooms
Inspiration for this type comes from zetamath.
Solve online in Penpa+ or Sudokupad.
Like all of my sudoku variants, this puzzle can be solved by logic alone. Guessing is not required and also no sophisticated solving techniques are necessary; just plain and easy sudoku steps and of course the intrinsic logic this specific variant has to offer. In case you don't find that logic or get stuck, feel free to ask for a hint in the comments below this puzzle and I'll be happy to help you.
Apply classic sudoku rules.
The clue in the circle or pill in box N indicates the sum of all the digits within box N that are orthogonally adjacent to the digit N within the box. Two digit totals are read from left to right or from top to bottom. Boxes are numbered from top left to bottom right from 1 to 9.
Solution code: Row 8
on 10. May 2025, 11:16 by Franjo
Nice and fairly easy (2*) puzzle, very well constructed - as usual. Thank you very much for creating and sharing. And thank you for remembering. I had totally forgotten that I already solved the original…
on 9. May 2025, 19:50 by Piatato
Lovely!
on 9. May 2025, 14:22 by Flinty
Very nice, but very tough!!
on 9. May 2025, 13:02 by marcmees
very nice. thanks
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