The Devil Squared
(Published on 3. October 2023, 14:53 by Asmodai)
This puzzle is a Thermo Windoku. Here are the rules:
- Standard Sodoku rules apply. In every row, column and outlined 3x3-box, each of the digits from 1 to 9 has to be drawn in exactly once.
- Windoku: Additionally, in each dotted 3x3, each of the digits from 1 to 9 has to appear exactly once.
- Along thermomets, digits should strictly increase from the bulb.
The puzzle is also available online via F-Puzzles. Have fun solving!
Solution code: Row 4
Comments
on 4. October 2023, 19:42 by Asmodai
To the solvers: Thank you very much for trying my first Sudoku and congratulations for making it! I would be delighted to know, how you managed to solve this puzzle as - to my knowledge - it doesn't have a logical solving path by known methods.
For all the other solvers, here is a hint:
In Windoku puzzles, there is a unique set equality involving the four corners and the four middlest edge cells of the grid being equal to the cells in the ring of box 5. This can be shown using the Phistomefel ring twice (once normally on the most outer ring, once within the windoku boxes) and then using transitivity of set equality and further deletion.
Happy solving!
on 3. October 2023, 14:57 by Asmodai
tried to fix again
on 3. October 2023, 14:54 by Asmodai
tried to fix the image
