The First Five Fives (Sudoku)
(Published on 16. February 2021, 20:12 by dani_checkered_duck)
The First Five Fives
Sandwich - Killer - Palindrome - Sudoku - where all clues are 20.
► RULES:
1. Normal sudoku rules apply.
2. one of the boxes is oddly friendly, in which each digit must match its square index in that box.
4. numbers outside the grid are sandwich clues (they indicate the sum of digit's between 1 and 9 in their column) - and they are closer to the 9 side.
5. the gray lines are palindromes (must be read the same from both ends) and all numbers on a palindrome must be repeated.
(correct) (124421) (444)
(wrong) (12421)
6. each main diagonal must be formed of exactly 5 different numbers - numbers can repeat.
► Play Link: Play Link
► The Puzzle:
► Author: Dani Checkered Duck.
► Date: 02/02/2021.
► Did you enjoy the First Five Fives?
let me know in the comments :)
Solution code:
Enter Row 1 and Row 3. (no spaces)
Comments
on 7. April 2024, 16:19 by geronimo92
If you read the ruleset carefully and see that it's totally 180 degrees symmetrical, that's a 1 star puzzle for sure !
on 24. July 2022, 20:51 by dani_checkered_duck
updated the image
on 18. February 2021, 11:31 by dani_checkered_duck
glad that you enjoyed it. :)
on 17. February 2021, 16:15 by Dina
I almost thought that there were some deadly patterns, but I liked how they were resolved! :-D
on 17. February 2021, 00:41 by SudokuExplorer
Lovely idea! :-)
on 16. February 2021, 21:35 by zhergan
Very nice construction! Thanks..
