Dutch Slant Mates
- Killer cages
- Renban lines
The brief
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Dutch Slant Mates: Each 5 in the grid either has a 1 DIAGONALLY above or a 9 DIAGONALLY below it. (It may have both, but it does not need both.)
Example: If R2C2 has a 5, there must be a 1 in R1C1 or R1C3 or a 9 in R3C1 or R3C3.
- Killer cages: Digits in a cage must sum to the clue in the top left.
- Renban: Each purple line must contain a set of consecutive non-repeating digits in any order.