Sudoku Explained

Easy printable sudoku

Forty-two clues, and nothing on the sheet needs more than a naked or a hidden single. The gentlest setting the grader will produce.

Difficulty Easy

What "easy" means here

Forty-two clues, and every board can be finished by scanning alone. No candidate grid, no pairs, no patterns — you read a row, find the digit that has one home, and move on. That is the whole job.

The 42 is not a target we aimed for. It is where the generator stops: it digs clues out of a full board one at a time, and the moment the remaining board needs anything more expensive than a single, it puts the clue back. On 600 out of 600 boards, that is exactly 42 clues. The number is a by-product of the rule, not a setting.

Why most "easy" sheets are harder than this

Most printable sites measure difficulty by the clue count. It is easy to count and a poor guide. A 30-clue board can collapse to singles if the clues are placed kindly, and a 34-clue board can need an X-Wing if they are placed cruelly.

This generator rates the puzzle instead: it solves the board with the same technique engine the game on this site uses, cheapest technique first, and keeps the puzzle only if the solve never needed anything above a single. So "easy" describes the work, not the clue count. If you have ever printed an "easy" sheet and hit a wall on puzzle three, that gap is the reason.

Who this sheet is for

  • Learning the rules. Nothing here requires pencil marks, so you can concentrate on what a unit is and why a digit has only one home.
  • Printing for someone else. A classroom, a waiting room, a parent who plays on paper and does not want a lesson attached.
  • Warm-up. Ten minutes before a harder sheet, to get the scanning habit back.

If singles already feel automatic, this sheet will bore you within two puzzles. That is the correct response — the medium sheet adds pairs and box-line work without changing the scanning habit.

Printing notes

Turn candidate marks off. On a singles-only board the marks do nothing but clutter the grid: no cell ever requires you to compare two lists, so the faint 3×3 text is noise. The one-per-page layout is the kindest for a first-time player, because the digits are large enough to write over.

Leave scale at 100%. "Fit to page" shrinks the grid and thins the box lines, and on an easy board the box lines are most of what you are using to scan.