Normal sudoku rules apply. Cells containing a grey circle must contain an odd digit. Cells containing a grey square must contain an even digit. In cages the sum of the even digits equals the sum of the odd digits. Digits cannot repeat within a cage.
Normal sudoku rules apply. Cells containing a grey circle must contain an odd digit. Cells containing a grey square must contain an even digit. In cages the sum of the even digits equals the sum of the odd digits. Digits cannot repeat within a cage.