Cages and modular lines
- Killer cages
The brief
Normal sudoku rules apply. Place the digits 1-9 once each in every row, column and 3x3 box. Digits in a dotted cage without repeat sum to the total given in the top left corner of the cage. Adjacent digits along a teal line must alternate between low (147), medium (258) and high (369) any set of three in a row must contain one of each modularity.