Sudoku for kids
Small boards to learn on: 4 × 4 and 6 × 6.
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Example
Example: a 12-puzzle sudoku book for a first grader, 4 × 4 with the answers
A six-year-old has just learned the rule and wants a whole book of them. Settings: Board 4 × 4 (for young children), How many puzzles 12, Difficulty Easy, Puzzles per sheet Six, Answer pages at the back, Heading “Mia’s Sudoku Book”, Letter.
- Every easy 4 × 4 starts with 10 of its 16 numbers given, so 6 squares are left to fill, and each puzzle has exactly one answer that can be found without guessing.
- Six puzzles fit on a Letter sheet, two across and three down, each about 2.4 in (61 mm) square: squares of about 0.6 in, roomy for a pencil.
- The puzzles are numbered No. 1 to No. 12; the answer pages repeat the same layout under “Mia’s Sudoku Book — Answers”.
- When the 4 × 4s go easily, move to Medium (8 given), then to the 6 × 6 at Easy.
| Difficulty | 4 × 4: given / to fill | 6 × 6: given / to fill |
|---|---|---|
| Easy | 10 / 6 | 22 / 14 |
| Medium | 8 / 8 | 18 / 18 |
| Hard | 6 / 10 | 14 / 22 |
| Expert | 5 / 11 | 12 / 24 |
sudoku.pdf, 4 pages: 2 puzzle sheets and 2 answer sheets to keep back. Every download makes new puzzles, so the next book is one click away.
How it works
- Choose 4 × 4 for a first sudoku, or 6 × 6 once the rules are clear.
- Choose the level and how many puzzles; six fit on a page.
- Download the PDF; the answers are on the pages at the back.
Frequently asked questions
- How is a 4 × 4 sudoku played?
- Each row, each column and each of the four 2 × 2 boxes holds the numbers 1 to 4 once. On a 6 × 6 the boxes are two rows by three columns and the numbers go to 6.
- What age is it for?
- Children who can count to four can start on the easy 4 × 4 at about five or six; the 6 × 6 suits seven to nine; the 9 × 9 comes after.
- Does every puzzle have one answer?
- Yes. A square is only emptied if a solver still finds exactly one way to finish the grid, so it can always be solved by reasoning.
- How big are the puzzles on the page?
- On US Letter: one to a sheet is about 6.9 in square, two about 3.7 in, four about 3.5 in and six about 2.4 in. At six to a sheet a 4 × 4 has squares of about 0.6 in and a 6 × 6 about 0.4 in; for small hands, print fewer to a sheet.
- Can I print the puzzles without the answers?
- Yes: untick Answer pages at the back. Left ticked, the answers come after the puzzles on pages of their own, in the same order and layout, so they can be kept back and used to check.
- Is it free?
- Yes. The free plan adds a small line at the foot of the last page; Pro leaves it off.