The Miracle of Entropy
(Published on 28. December 2021, 10:53 by SimiC)
Big thank you to Mad_Tyas for allowing me to use his new constraint and testing
Rules:
- Sudoku: place every digit from 1 to 9 once in every row, column and box
- Entropy: Consider the low digits (1, 2, 3), middle digits (4, 5, 6) and high digits (7, 8, 9) as three different groups. Each 2x2 box in the grid has to contain at least one digit of each group
- Antiknight: Cells a chess' knight's move apart can't contain the same digit
- Antiking: Cells a chess' king's move apart can't contain the same digit
- Dots: Cells connected by a white dot must contain consecutive digits (no negative constraint)
Have fun!
Solution code: Row 1, then row 9 (no spaces)
Comments
on 9. November 2023, 20:39 by PinkNickels
This is absolutely brilliant. Astonishing setting.
on 31. March 2023, 00:28 by AParliamentofOwls
absolutely beautiful! at first I looked at it and thought it couldn't be done but as soon as I cracked the first digit I knew what to do! well done and thank you for the fun!
on 9. January 2022, 03:26 by alexlovi
Took me 70 minutes to crack this one... Such an amazing solve, loved it!
- Wow, lots of effort! Glad you liked it!
on 3. January 2022, 13:51 by Ragna
Thank you for this wunderful puzzle! :-))
- Thank YOU for the kind comment!
on 30. December 2021, 20:14 by TheRiddler
Wonderful puzzle! The different constraints make for a very elegant solution path!
- Thank you!
on 30. December 2021, 13:02 by Swarley
The symmetry of the puzzle and how it unraveled was truly beautiful, thank you for this!
- Very happy you enjoyed it!
on 29. December 2021, 16:30 by Chelo
Thank you for this miracle!.. very very nice!..
- Glad you liked it!
on 28. December 2021, 20:17 by Bankey
Fascinating puzzle. Thanks, @SimiC :-)
- Glad you enjoyed it!
on 28. December 2021, 17:36 by aruvi
What a gorgeous puzzle, the symmetry is so unexpected and the geometry is so pleasing.
- Thank you so much! Glad you enjoyed it
on 28. December 2021, 11:04 by Mad-Tyas
A very nice puzzle with great and not too difficult use of the Entropy constraint. The remarkable combination with two additional global constraints leads to a smooth and satisfying solve.
- Thank you once again!
