Subtraction Game
- Killer cages
- Diagonals
- Arrows
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. On the marked diagonal digits do not repeat. Digits in a cage sum to the clue in the top left. Digits on an arrow sum to the digit in the circle from which the arrow emerges.
