# Sudoku - Puzzle 6

This is the sixth puzzle, which is also medium difficulty like the fourth and fifth ones, so it may need a bit of figuring out.

As before, you can resize your browser window to make the puzzle bigger or smaller as you want. To fill in a number that you definitely know, use your mouse to left-click on the square and select the number. If you're not sure but want to mark a possibility (for example, the 2 can either be here or here), then right-click on the square instead and select the number. This possibility will be written smaller and grey in the corner of the square, like a pencil mark to remind you.

• Square
• 1
• 4
• 7
• is
• 2
• 5
• 8
• -
• 3
• 6
• 9

The code running here is from the ActivityWorkshop, and the numbers were generated using the free (GPL'd) software Sudoku Sensei. This example is coded as `N2x01-059` which means a single level 2 rule is needed to solve it, and it starts with 59 empty squares. It's this level 2 rule which bumps the complexity up to medium.

How To Solve Them // About the helper // Puzzle 1 // Puzzle 2 // Puzzle 3 // Puzzle 4 // Puzzle 5 // Puzzle 6 // Puzzle 7 // Puzzle 8 // Puzzle 9 // Puzzle 10 // puzzle 8 // puzzle 6 // puzzle 4 // puzzle 9 // progress // puzzle 5 // puzzle 1 // puzzle 3 // puzzle 7 // puzzle 10 // puzzle 2 // Blank Puzzle