Addoku Easy Walkthrough 1
Step 3
Easier step this time you will be pleased to hear and we are going to concentrate on the orange area illustrated above. If we consult our chart for 13 in 2 boxes we can see that there are 3 options, (9,4), (8,5), (7,6), however due to the 9 and 6 in the row it can only be 8 and 5.
As in traditional Sudoku each 3 x 3 box can only have the numbers 1-9 in once, therefore the right number has to be the 8 and the left 5.
