Aoi Manji
Rules:
- Classic Sudoku:
Every row, column and 3x3 box must contain every number from 1 to 9.
- Region Sum Lines:
Box borders divide a blue line into multiple segments which have the same sum. All such lines must have the same sum.
- Palindrome Lines:
Digits along a grey line read the same backwards and forwards.
- X:
Two digits separated by an X clue sum up to 10.
Play it online in SudokuPad.
This puzzle is also on Logic Masters Germany.