I had this idea for a Doppelgänger puzzle, and then ThePedallingPianist told me (spoiler alert) there's already a very similar puzzle... 👀
Online in Sudokupad (and with extra note space).
See also:
Solution code: Digits on the column missing a 7, top to bottom.
on 21. December 2025, 05:26 by MathGuy_12
Sucks when someone else has your great idea first, but it is still a great idea nonetheless!
| Difficulty: | ![]() |
| Rating: | 98 % |
| Solved: | 19 times |
| Observed: | 0 times |
| ID: | 000Q1V |
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