Sudoku Heatmap
Inspiration for this type comes from Jesper.
Solve online in F-Puzzles (thx to Frankenfruity!)
Apply classic sudoku rules.
Digits in a cell with a light grey square are the sum of exactly two horizontal or vertical neighbouring digits. Digits in a cell with a dark grey circle can be built in exactly two ways from two of it’s horizontal or vertical neighbours. All possible circles and squares are given.
Solve online in Penpa+ (thx to Henry!)
Solution code: Row 2, followed by row 9.
on 4. September 2022, 07:54 by Richard
Added tag for online solving.
on 13. October 2021, 07:46 by AnnaTh
Puh, sehr knifflig. Man kann schnell einige Möglichkeiten übersehen. Aber natürlich wie immer toll.
on 9. July 2021, 06:42 by Richard
Thanks cam! Like very often in my puzzles, I wanted to guide solvers to the next logical steps in the solve, using some of the intrinsic logic this ruleset offers.
on 9. July 2021, 06:40 by Richard
Added links for online solving. Thanks to Frankenfruity and Henry!
on 9. July 2021, 05:53 by cam
Great puzzle! You put some really fun pieces of logic in this and it was smooth and enjoyable to solve!
on 7. July 2021, 19:03 by marcmees
Very nice and tricky. thanks
on 7. July 2021, 15:12 by henrypijames
Penpa+: https://git.io/JcSf4
on 7. July 2021, 14:54 by Frankenfruity
F-PUZZLES link for online solving:
https://f-puzzles.com/?id=yja656jr
on 7. July 2021, 00:56 by Jesper
Very nice! I didn't think about this ruleset for so long, it was fun to get reacquainted with it again. I like what you did with it :)