Entropy Sweeper
(Published on 30. September 2023, 22:40 by tesseralis)
This is an idea I've been wanting to do for a while, combining "floating regions" (e.g. doublers) with sweeper rules. I initially tried to do a version with parity, but found entropy to have some fun logic in it. Enjoy!
Rules
Normal sudoku rules apply. Mark nine cells, one in each row, column, and box, containing the digits 1-9 once each.
Eight of the nine marked cells are "entropy sweeper" cells and count the number of cells in its 3x3 neighborhood that have the same entropy as it.
Digits belong to the same entropy when they are both low (123), middle (456) or high (789).
Solve on F-puzzles or SudokuPad.
Solution code: Column 1
Comments
on 17. October 2023, 04:11 by yuanbangod
good
on 7. October 2023, 11:54 by Fool on Hill
This is a beautifully economical puzzle and a lovely solve
on 5. October 2023, 07:27 by goshogi
Thoroughly absorbing. Thanks
on 3. October 2023, 16:21 by samuel1997
Impressive! Thanks!
on 2. October 2023, 21:10 by madhupt
Very smooth and very enjoyable!
on 2. October 2023, 20:25 by Bankey
Interesting variant. Thanks, @ tesseralis :).
on 2. October 2023, 03:31 by MonsieurTRISTE
It gets harder as you gradually solve it.
on 1. October 2023, 19:06 by Godrick
Very beautiful and nice. This was a gem. Deserves more solvers! Thanks :-)
on 1. October 2023, 14:52 by OutOfMyMindBRB
Beautiful entropy setting with intricate logic - loved it - thanks :-)
on 1. October 2023, 10:27 by Christounet
You were right ! That's fun entropy :)
on 1. October 2023, 01:10 by bansalsaab
Beautiful concept
on 30. September 2023, 23:49 by OhHeyGuysItsMax
For sweeper cells, does the count include itself or just it's neighbors?
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@ohheyguysitsmax it counts itself as well
