Blank Sudoku Grid
A blank sudoku grid to print
An empty 9x9 grid with the three-by-three blocks ruled heavier than the cells, on a sheet you can actually write on. No puzzle printed in it and no solution on the back: just the grid, for the times you want to fill it in yourself.
What do people use an empty grid for?
Three things, mostly. Setting a puzzle by hand for someone else to solve. Copying a newspaper sudoku onto a clean sheet, because solving in a two-centimetre margin with a biro is miserable. And teaching the method, where the teacher decides how many givens the class gets rather than the publisher.
Where are the actual puzzles?
Not here, and that is deliberate. Plenty of sites do nothing but generate sudoku puzzles at difficulty levels with the solutions attached, and they do it well. This is the sheet for the other half of the problem: when you already have the puzzle and want somewhere decent to work it out.
How big are the boxes?
The grid fills the printable width of the page, so a 9x9 on A4 gives cells around 10 mm across. That is enough room to pencil candidates into the corners, which is the reason to solve on paper at all. If you need a plain grid to rule your own sizes, use graph paper.
