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Morniura SudokuGuide

KIDS · GENTLE START

Sudoku for kids

For children, Sudoku is not arithmetic. It is a pattern game about noticing rules. Start with 4×4 for quick wins, then use 6×6 to introduce notes and more careful scanning.

Start with 4×4

4×4 uses only digits 1–4 and finishes quickly. Children can see the core rule clearly: no repeated digit in a row, column, or box.

  • Use Easy 4×4 for the first few rounds.
  • Ask why a digit fits instead of asking for speed.
  • When they stall, cross out digits already visible in the row and column together.
Example: on a 4×4 board, row, column, and box clues reduce one empty cell to a single candidate.1234341221434321
Example: on a 4×4 board, row, column, and box clues reduce one empty cell to a single candidate.

Printable sheets help focus

Some children think more calmly on paper. Print 4×4 or 6×6 sheets, let them mark candidates with a pencil, then reopen the same page online when they want to play on a device.

When to try 6×6

Move to 6×6 Easy or Normal when your child can explain 4×4 solves without help. The extra candidates make note-taking useful without becoming overwhelming.

Practice order

  1. Pick 4×4 EasyKeep the first board short and focused on one rule.
  2. Cross out visible digitsRemove candidates already seen in the row, column, and box.
  3. Explain the singleSay why one candidate remains before placing it.
  4. Mix paper and web playAlternate printable sheets with online rounds for repetition.

Solve one 4×4 cell together

Step 1 of 4

4×4 kids Sudoku example123434122143421
4×4 kids Sudoku example

A small 4×4 board with one blank cell. Look around that cell together and name the visible digits.