The popular Japanese puzzle game Sudoku is based on the logical placement of numbers. An online game of logic, Sudoku doesn’t require any calculation nor special math skills; all that is needed are brains and concentration. How to play Sudoku
How do you make a simple Sudoku board?
Create a simple Sudoku board that looks like below basically shifting the first row by 3 positions to the right (every 3 rows ). Call the above the basic Sudoku board. You can now shuffle columns and rows and still have a legal formation of Sudoku board.
Can we swap rows and columns in a Sudoku block?
We can swap row blocks with other row blocks and we can swap column blocks with other column blocks and still have Sudoku invariant set. You can swap columns within same block. You can swap rows within same block.
