Schrödinger's Foggy Rationale (FOW)
(Published on 12. October 2023, 18:58 by gdc)
My second schrödinger sudoku. This time, I went for something approachable. According to testers on the CtC-fan-discord (thanks everyone!), this should be a 2 star and suitable for solvers that are not familiar with S-cells.
- The grid is partially covered in fog. Placing correct digits reveals clues in the surrounding 3 by 3 area.
- "Normal" Schrödinger rules apply: Place the digits 0-9 once each in every row, column and box. Two of the digits will have to share a Schrödinger Cell (S-cell). Each row, column and box contains exactly one S-Cell.
- S-Cells count as the sum of their digits for all clues.
- Digits joined by a black dot are in a 1:2 ratio i.e. one is double the other. Not all dots are necessarily given.
Play online: SudokuPad
Live Solve
Click here to see Wenchang Lu's live-solve of this puzzle on youtube. Thanks Wenchang for this feature!
Click here to see Mark from CtC live-solve this puzzle. Thanks for that feature!
Solution code: All digits within Schrödinger cells, lowest digit first, top-row to bottom-row. (18 digits with no spaces)
Comments
on 4. September 2025, 20:21 by hyea
Is there any way to place a digit to S-cell?
on 13. March 2025, 08:22 by SirRanch
This was my first S-cell puzzle. My brain wasn't braining at first but the solution checker really saved my life. Great puzzle tho
on 20. July 2024, 09:41 by Jackson Philion
As cascadeshiker mentioned, this was a phenomenal puzzle to serve as my first introduction to S-cells. The FOW and unique usage of black dots helped make it a delight! Great puzzle, thank you.
on 9. November 2023, 02:16 by cascadeshiker
Very nice introduction to Schrödinger cells. Thanks.
on 15. October 2023, 00:03 by gdc
add link to solve video (Wnchang Lu)
on 13. October 2023, 04:39 by willdabeast29
Thanks so much for this. Really nice puzzle, and a great way to mark my 100th solve :)
on 13. October 2023, 00:09 by sujoyku
Thank you for this nice puzzle, gdc! I have not too much experience with Schrödinger cells, but found the puzzle approachable and the logic very clear-cut. Already the starting grid is aesthetically pleasing and the walk through the fog has been very entertaining. Thank you for setting and sharing!
on 12. October 2023, 22:56 by gdc
Thanks @ViKingPrime! Surprisingly, the addition of fog made scanning and telegraphing much easier.
on 12. October 2023, 20:51 by ViKingPrime
Beautiful follow-up! S-cells seem like such a fun addition to Fog of War puzzles.
This is an especially good starting place for anyone interested in either constraint.
