Hot Potato
- Killer cages
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.
- Killer cages: Digits in a cage do not repeat and sum to the clue in the top left. Moreover, if cages are adjacent to each other (i.e. share an edge), they have to contain at least one common digit.
