The Sudoku board has a 9 by 9 box with 9 3 by 3 boxes. You can only have one player.

First you look at the ones if there’s a one in the box you can’t put another one in that box when there’s a one in the row you can’t put it in that row then you find a row with no ones.

$First you look at the ones if there\u2019s a one in the box you can\u2019t put another one in that box when there\u2019s a one in the row you can\u2019t put it in that row then you find a row with no ones.$

How to play sudoku

Play Sudoku

The Sudoku board has a 9 by 9 box with 9 3 by 3 boxes. You can only have one player.

First you look at the ones if there’s a one in the box you can’t put another one in that box when there’s a one in the row you can’t put it in that row then you find a row with no ones.

There are five levels easy moderate ambitious tough diabolical.

There are numbers filled in on the box so you can figure out how to get some numbers filled in to win.