PaperKind puzzles · Kids · 4×4
Kids Sudoku 4×4
NameTime
Fill every empty square so that each row, each column and each 2×2 box contains the numbers 1 to 4 exactly once.
34131342
Printable Sudoku
Printable Sudoku, from first grids to hard puzzles.
Print a Sudoku on A4, solve it with a pencil and check it against its own solution sheet. Choose a level below, or make a fresh puzzle in the generator.
By difficulty and format
Find the right level
Kids Sudoku4×4 puzzles start with about 8 of 16 squares filled; 6×6 puzzles start with about 20 of 36.Easy SudokuEasy 9×9 puzzles start with about 38 of 81 squares filled.Medium SudokuMedium 9×9 puzzles start with about 32 of 81 squares filled.Hard SudokuHard 9×9 puzzles start with about 26 of 81 squares filled.
The rule
How to play Sudoku
A standard Sudoku is a 9×9 grid divided into nine 3×3 boxes. Some squares already contain numbers. Your task is to fill every empty square so that each row, each column and each box contains the numbers 1 to 9 exactly once.
Smaller grids follow the same rule. A 4×4 puzzle uses 1 to 4 and four 2×2 boxes; a 6×6 puzzle uses 1 to 6 and six boxes of 2 rows by 3 columns.
Solving tips
How to solve a Sudoku, step by step
- Scan one number at a time. Pick a number and look at each box. If the number is missing from a box, find which squares in that box are blocked by the same number in their row or column. If only one square is left, it goes there.
- Look for nearly full groups. A row, column or box with one or two empty squares is often quick to finish.
- Use pencil marks. On medium and hard puzzles, write the possible numbers small in each square and cross them off as the grid fills up.
- Never guess blindly. Each PaperKind puzzle has exactly one solution, so there is always a logical next step — even if it takes a while to spot.
- Check at the end. Compare with the solution sheet. If something is wrong, look for the first number that repeats in a row, column or box.
Printable examples
Sample Sudoku puzzles with solutions
Solutions are hidden until you choose Show solution. You can also print each solution on its own page.
PaperKind puzzles · Kids · 4×4Solution
Kids Sudoku 4×4 — solution
Completed grid. Bold numbers were the starting clues.
3412213412434321
PaperKind puzzles · Easy · 9×9
Easy Sudoku
NameTime
Fill every empty square so that each row, each column and each 3×3 box contains the numbers 1 to 9 exactly once.
26741479155726896125429671732676158843
PaperKind puzzles · Easy · 9×9Solution
Easy Sudoku — solution
Completed grid. Bold numbers were the starting clues.
269754813347981562185362974572638491896417325413529687958173246734296158621845739
PaperKind puzzles · Medium · 9×9
Medium Sudoku
NameTime
Fill every empty square so that each row, each column and each 3×3 box contains the numbers 1 to 9 exactly once.
97135842583494653873274634719569
PaperKind puzzles · Medium · 9×9Solution
Medium Sudoku — solution
Completed grid. Bold numbers were the starting clues.
947213586183645279256798143872461395465389721391527864639172458718954632524836917
Related
More to print
The Sudoku generator makes a new puzzle at any level. For children, pair kids Sudoku with the Kids Worksheets maths and English sheets, which also come with answers.
Want a change from numbers? Try the crosswords or spot the difference.
Questions