Crossing Sums
- Region sum lines
- Renban lines
The brief
- Normal Sudoku rules apply.
- Lines are both Renban and Sum Lines. Different colour lines are for clarification.
- Renban: Digits placed on lines must be a non-repeating set of consecutive digits, in any order.
- Sum Lines: The sum of the digits on a line is the same within each box the line is in. Lines that exist in a single box may be any sum.