Standard ten lines and entropic lines. I found a break in with rotationally symmetric clues and made a challenge to keep all clues rotationally symmetric. The puzzle is unique without the given 8 but in my opinion impossible for a human, and when you rotate 8 about 180 degrees it still looks like an 8. Good luck!
- Normal sudoku rules apply: Place the digits 1 to 9 once each in every row, column and 3x3 box
- Ten Lines: Grey lines contain digits that can be broken into one or more non-overlapping contiguous groups that sum to ten. 521237 could be a valid fill for a 6 cell ten line as it can be broken into groups of 5212 and 37 both of which sum to 10
- Entropic Lines: Any run of 3 adjacent digits on a peach entropic line must include one low digit (1, 2, 3), one medium digit (4, 5, 6) and one high digit (7, 8, 9)
Play on Sudokupad