Normal and Diagonal Sudoku rules apply. Each row, column, diagonal and 3x3 box contains each number from 1 to 9 exactly once.
The grey lines are palindromes: they are sequences of digits which read the same backward as forward (for example: 1374731).
The puzzle is also available online.
Solution code: Row 9 and Column 8
on 28. January 2021, 17:46 by Frans Wentholt
Wonderful puzzle, beautiful design!
on 25. January 2021, 18:43 by GD20
i spent way too much time on this but I'm glad all the colouring finally sorted itself out. Thanks for the puzzle!
on 21. January 2021, 12:42 by beans
really enjoyed this one!
on 20. January 2021, 17:08 by panthchesh
Thanks for the puzzle! :)