violence against nature
(Published yesterday, 01:00 by aqjhs)
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Doppelgänger Sudoku:
- Fill each cell of the 9x9 grid such that every row, column and 3x3 box contains a 0 and eight different digits from 1-9.
- No two rows, no two columns and no two boxes may be missing the same digit.
- For each 0 in the grid, the digits missing in its row, its column, and its box must be three different digits.
- Digits strictly increase along thermometer lines starting at its bulb ends.
Online in Sudokupad (and with extra note space).
See also:
Solution code: Digits on the column missing a 3, top to bottom.
Comments
yesterday, 23:03 by naderghanbari
Thanks for this brilliant puzzle. It was my first attempt at a 5/5. Thanks also for the space for notes! It took me 3 sittings and over 6 hours total. But I think I can explain it to a 5 year old now. So many beautiful lemmas to prove, in the 9x9 and outside it! It felt like thinking about 4-dimensions in a 3D world.
yesterday, 19:45 by Miatc
I wasted so much time painstakingly taking notes in an app
Completely overlooking the link to a version with space for the notes...
Oh well, still very proud of myself for solving this one, very cool and tricky logic
yesterday, 19:32 by SennyK
That was great, nicely done! :-)
yesterday, 18:18 by earthpuzzles
So glad to see more doppelgängers in the world!
