Sudoku Variants Series (297) - Palindrome Snake Sudoku
(Published on 2. December 2020, 00:00 by Richard)
Palindrome Snake Sudoku
Inspiration for this type comes from peterchayward.
Solve online in F-Puzzles. (Thx fuxia!)
Apply classic sudoku rules.
Draw a snake in the grid that starts and ends in the cells with the circles. The snake wriggles horizontally and vertically and never touches itself, not even diagonally. The digits on the snake form a palindrome; they read backwards the same as forwards. The digits in grey cells are not part of the snake and indicate how many of the horizontally, vertically and diagonally adjacent cells are part of the snake. All possible grey cells are given.
Solution code: Row 2, followed by column 8.
Comments
on 1. December 2023, 03:19 by AaronB
Very nice! I found that I was able to solve without ever utilizing the negative constraint.
on 19. December 2021, 08:00 by Richard
Added link for online solving. Thx fuxia!
on 4. December 2020, 01:34 by BenceJoful
Beautiful puzzle!
on 3. December 2020, 22:20 by peterchayward
Took me about 40 minutes - really loved the usage of all the restrictions throughout! I only finished the snake in the last 10 minutes or so, very lovely.
on 2. December 2020, 21:51 by telliott
Loved it!
on 2. December 2020, 10:17 by marcmees
nice & tricky.
thanks
on 2. December 2020, 10:11 by PetLov
So much fun :-)
on 2. December 2020, 03:45 by fuxia
Link: https://f-puzzles.com/?id=yyeqmk6v
