Palindrome Builder
Normal Sudoku rules apply.
The given circles indicate the start of a palindrome line (A line that has the same order of digits from either end) The number in the circle indicates the sum of all the digits on the palindrome line. The arrows indicate the starting direction of the line. Empty circles are the ends of lines. The line paths and lengths must be discovered by the solver. Lines can cross each other but can not share cells. No digit repeats on a palindrome more than once.
Here is a link to the puzzle on Penpa +
Here is a link to the puzzle on f-puzzles
Solution code: Column 7 + Row 8
on 3. August 2021, 08:10 by Quarterthru
Changed difficulty.
on 11. July 2021, 22:38 by marcmees
nice and challenging. thanks.
on 11. July 2021, 08:37 by Quarterthru
added a rule that was not needed but does make the puzzle easier to solve.
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