The Entropy Safe
(Published on 13. February 2023, 07:58 by Mad-Tyas)
Sudoku: Fill every row, column and marked 3x3 box with the digits 1-9.
Killer: In cages marked with a black 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 9 followed by column 9 (18 digits)
Comments
on 10. March 2024, 07:42 by Mikemerin
While I’ve been highly enjoying all of your puzzles so far, the logic in this one was far and above the most satisfying. Amazing job setting this one!
on 15. October 2023, 14:20 by Snookerfan
Incredibly good puzzle! The break-in took me hours to find, but I always know it's worth it in these kind of puzzles and indeed it was. Thank you
on 17. February 2023, 19:22 by BHUNTER47
I think entropy puzzles are one of my favorite sudoku variants, and this one was beautiful. Instantly obvious what the logical path was meant to be, but still challenging to solve.
-Reply: Thank you for solving and your comment! It's always a pleasure to read that people enjoy the entropy variant.
on 14. February 2023, 13:11 by giladooshlon
An amazing grid with beautiful logic
-Reply: Thank you! I was really happy to find this elegant and minimalistic setup to transfer the initial idea to a complete puzzle. I'm glad you enjoyed the solve.
on 13. February 2023, 19:48 by Tilberg
Locker-flockig, bis man plötzlich eine fette Wand trifft. Ab dann muß man schon alle Entropietricks anwenden, die's so gibt, und es bleibt trotdem bis zum Ende herausfordernd. Danke!
Easy-peasy until you hit a brick wall. After that you need to use all possible entropy tricks, and it still keeps being challenging. Thanks!
on 13. February 2023, 18:02 by Myxo
Brilliant and challenging.
on 13. February 2023, 17:12 by Raumplaner
A masterpiece of Entropy.
on 13. February 2023, 14:37 by Ood
Wonderful puzzle!
-Reply: Thank you for solving! I'm glad you enjoyed it.
