Entropy Killer
(Published on 8. December 2021, 00:59 by Mad-Tyas)
You can find a puzzle that shows the new constraint without any further variant here .
Rules:
Sudoku: Fill every row, column and 3x3 box with the digits 1-9.
Killer: In cages marked with a dashed line digits must not repeat and have to add up to the total given in the top left corner of the cage.
Entropy: The low digits (1, 2, 3), middle digits (4, 5, 6) and high digits (7, 8, 9) are defined as three different groups. In the finished grid each 2x2 box has to contain at least one digit of each group.
Have fun solving!
Solution code: Row 1 followed by column 8 (18 digits)
Comments
on 17. February 2022, 22:35 by Bankey
Finally made thru this one! Very enjoyable. Thanks, @ Mad-Tyas :-)
on 31. January 2022, 19:25 by Mad-Tyas
Added Entropy tag
on 5. January 2022, 19:14 by udukos
Very creative idea and a lovely puzzle built around it. Thanks, Mad-Tyas!
on 12. December 2021, 04:21 by Willy Wonka
First time solving a puzzle with the entropy constraint and it is brilliant! Very well incorporated into this puzzle, loved it
-Reply: Thank you for your kind comment! I'm glad you like the constraint. I hope I can present a lot more nice stuff based on it.
on 10. December 2021, 19:56 by Mad-Tyas
Thank you all very much for attempting, solving and rating the puzzle!
I'm very pleased that this new constraint is so well-received.
on 9. December 2021, 17:49 by 0123coolkid
This was absolutely amazing. I just finished my first semester of sophomore year of college, and this was a wonderful, challenging puzzle to in order to get back into a puzzling groove. Amazing setting!!
-Reply: Thank you for your lovely comment! I'm glad my puzzle got you into the groove ;-)
on 9. December 2021, 17:39 by clohrmann
I have really enjoyed your entropy puzzles a lot. I love coloring the grid, but the logic on these always makes for a fun solve.
-Reply: Thank you for solving and your comment! It's nice to read that you enjoyed it.
on 9. December 2021, 17:10 by SudokuExplorer
The two constraints interact very harmoniously, thanks! :-)
-Reply: Thank you for solving and your comment! When I had the idea for this constraint I thought there should be a lot of potential for nice interaction with variants based on digit value. I'm glad this puzzle confirmed that in your experience.
on 9. December 2021, 13:21 by marcmees
hardest part is to define low/middle/high for each cell. Once that's done, it solves like a train.
Nice. thanks
-Reply: Thank you! This sounds like the kind of solving experience I aimed for.
on 8. December 2021, 22:30 by Playmaker6174
Nice puzzle, quite challenging for me at some points but I enjoyed the way the constraint worked :)
-Reply: Thank you again for testing the puzzle! I'd have underrated the difficulty without your previous feedback.
on 8. December 2021, 20:27 by SimiC
Absolutely love this new constraint!
-Reply: Thank you for solving! I'm glad you like the entropy idea.
