This is a sudoku-esque puzzle I came up with when trying to solve some harder sudoku.
The rules
- It’s a Latin square like sudoku, so there must be the numbers 1-9 exactly once in every row and column.
Numbers can be repeated in a 3x3 box with the following restrictions on rows.
Notice that each 3x3 box divides a row (1x9) into three 1x3 boxes.
- In every row, within a 1x3 box, you can only have one number from each triple {123}, {456},{789}.
So essentially in a row you have to space out the numbers 1,2,3 into the three divisions of the row.
Eg, in the first row, the first 1x3 box contains a ‘3’, therefore in the next two boxes you cannot have a ‘1’ or a ‘2’.
There should be a unique solution from the construction.
Note: It’s only really the vertical dark lines which divide up the rows that are important, the horizontal ones are more there to make it easier to look at and for me to make the puzzle.