Hopscotch (Remix)
(Published on 3. September 2022, 08:00 by Nordy)
This puzzle is a remix of a previous idea, and features a much improved solve path with a better focus on what makes Whisper Squares interesting. Enjoy!
Rules:
Normal Sudoku: Place the digits 1 to 9 in every row, column, and 3x3 box.
Whisper Squares:
- Every 3x3 box contains one hidden 2x2 region called a Whisper Square.
- In a Whisper Square, orthogonally adjacent digits must have a difference of 5 or greater.
- Whisper Squares must not touch each other orthogonally, but they may touch diagonally.
Equal Sum Cages: Within each cage, the sum of digits inside Whisper Squares equals the sum of digits outside Whisper Squares.
Here are some examples:
Solve online:
Solution code: Column 4
Comments
on 7. February 2024, 20:02 by yttrio
Very nice, fun puzzle! I loved how the whisper squares interacted with the cages near the beginning, and the solve path really came together as long as you're looking in the right places.
on 14. April 2023, 00:37 by halftime
Really lovely puzzle. I started out by making random guesses until I could see some patterns forced by the rules, then started over and proceeded more logically. Once I got on the right track, it was a tough but rewarding solve. Just what I want out of a puzzle on the higher end of difficulty. Thank you for sharing!
on 13. April 2023, 22:11 by TNGuy
This is the sort of puzzles that I absolutely love and enjoy! Best 35 minutes I've spent today, thanks Nordy!
on 18. March 2023, 07:54 by Phistomefel
It amazes me how strong the Whisper Square condition is. What a beautiful minimalistic puzzle! Thank you, Nordy! :)
on 16. March 2023, 05:32 by damasosos92
It's just one of the most beautiful sudokus I've ever witnessed. I still cannot believe that it solves and how it solves.
Everything is SO flawless and nice. Loved all the break-in part, but even the ending was top notch. Thank you, Nordy.
on 9. September 2022, 18:19 by filuta
Such a great inventive concept and a really fun puzzle!
on 7. September 2022, 03:45 by Samish
Exquisite puzzle with a magnificent break-in ! Thanks for setting such a beauty and thanks to Piatato for recommending it to me :D
on 7. September 2022, 01:38 by Piatato
What a fantastic treat this was! I really enjoyed making the discoveries that were needed for solving this puzzle! :-)
on 3. September 2022, 21:02 by mathpesto
Such a beautiful construction! Incredible, unique discoveries throughout!
on 3. September 2022, 18:08 by Tilberg
Vielen Dank!
