Printable
Medium printable Sudoku
About 35 givens. Most cells still fall into place on their own, but now and then you'll have to look at the grid from another angle. The morning-coffee level.
Free to copy: schools, libraries, care homes and clubs may reproduce and hand out these sheets at no cost.
The step up from easy
With six fewer givens than an easy puzzle, there isn't always a cell with only one possible number. That's when the opposite question helps: where in this box can the 7 still go? If there's only one spot, that's a hidden single.
Roughly one medium puzzle in four needs that technique at least once. The rest can be solved with naked singles – they're just better hidden.
Several puzzles per sheet
Four puzzles per page is a good balance of readability and paper. For travel or a booklet for the week, six fit on a sheet as well; ten sheets make 60 puzzles.
Stuck?
Before you check the answer, write every remaining possibility into the tricky cells. A cell with a single candidate often jumps out once you do. We walk through each step on the techniques page.
By difficulty: Daily puzzle· Mixed· Easy· Medium· Hard· Expert
More: Kids’ Sudoku· Blank grid· 4 per page· 6 per page
Rules · Techniques · Play