How To Do Sudoku | Sudoku Solver Tips

New to Sudoku?

Work through these levels to find out how to ‘get’ the idea. You don’t have to add or multiply anything – just place the given numbers into the boxes so that they are all used up and there are no double-ups. You’ll be a Sudoku solver in no time!

Suggestion: Draw up your own grid, use pencil and have an eraser handy!

For the first one, use the numbers 1, 2, 3, 4 across and down every line.

Just to add some fun to it, make sure each square also has the numbers 1, 2, 3, 4.

easy sudolu 1

Quick look at the answer

Solution: Line 1: 3 1 4 2 Line 2: 2 4 1 3 Line 3: 1 3 2 4 Line 4: 4 2 3 1

Now try another one:

easy sudoku 3

Check your answer.

Check your answer: Line 1: 4, 1, 3, 4 Line 2: 2, 3, 4, 1 Line 3: 3, 4, 1, 2 Line 4: 4, 2, 3 1

Move on to 9 Squares:

Same principle applies – every line across and down must contain the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9

And every 9-box square must have the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9

(You can check below to help you on your way – try to do without it first, though!)

Sudoku-example

Check your answer.

Sudoku-solution

Now for one on your own:

Sudoku-6.4

Check your Answer

Line 1: 8, 9, 2, 5, 1, 3, 6, 7, 4; Line 2: 6, 7, 3, 8, 9 4, 1, 2, 5; Line 3: 5, 1, 4, 7, 2, 6, 1, 2, 5; Line 4: 2, 8, 6, 4, 5, 7, 3, 9, 1; Line 5: 4, 5, 7, 1, 3, 9, 8, 6, 2; Line 6: 1, 3, 9, 6, 8, 2, 5, 4, 7; Line 7: 7, 4, 5, 9, 6, 1, 2, 3, 8; Line 8: 3, 6, 1, 2, 7, 8, 4, 5, 9; Line 9: 9, 2, 8, 3, 4, 5, 7, 1, 6;

Click here to try some more for yourself – they are printable and divided into levels of difficulty.