6×6 Number Sudoku — Medium
Fewer clues, more thinking: this 6×6 number sudoku, medium level, gives children aged 7-9 two puzzles with 20 numbers given and 16 to find.
1 A4 page · for home and classroom use
Sudoku 6×6 — medium
How to use this worksheet
- In the left puzzle the third column is already complete. The bottom row reads gap, 4, 1, 5, 6, 3, so the gap is 2.
- At the start, only three squares in the left puzzle have a single possible number. Find them, then watch how each new number opens up others.
- For squares with two or three options, write small pencil notes and come back later.
- Check both puzzles against the key.
What this worksheet teaches
Each 6×6 puzzle has six boxes of 2 rows by 3 squares, and every row, column and box must contain 1 to 6 once. With 20 numbers given instead of 24, children meet squares that cannot be solved immediately and learn to postpone them. Each puzzle has exactly one solution and never needs guessing. Choosing which square to tackle next becomes a real planning skill here.
Pencil marks for the stubborn squares
When a square has more than one possible number, write the options small in its corner, such as 2 and 5. As the grid fills, cross out the options that become impossible. When one option remains, write it in full. Pencil marks mean nothing has to be kept in memory.