Sudoku 9 by 9: two tricky puzzles: sudoku puzzle for Grades 6–7, page 1 preview

Sudoku puzzle · Logic & Puzzles

Sudoku 9 by 9: two tricky puzzles · Grades 6–7

Fill two 9 by 9 sudokus so every row, column and 3-by-3 box has 1 to 9 exactly once. About 28 clues each; these need sharp deduction, and each has exactly one solution.

Grades 6–7 · ages 11 to 13
Hard
20 to 30 minutes
1 page
Free

The answer key is a separate page for grown-ups. Sign in to download it.

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What the sheet says

Directions: Fill in the empty squares so every row, every column and every thick-lined box has the numbers 1 to 9 exactly once.

1 28 clues
2 27 clues

What your child practices

Your child practices the logic and puzzles skill “Deduction from clues”: combine clues to eliminate possibilities.

Grades and ages: Grades 6–7, ages 11 to 13
Time: About 20 to 30 minutes
Subject: Logic & Puzzles
Level: Hard for Grades 6–7
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Read every clue or rule before filling anything in. Use a pencil so changes are easy to make. It is one of the harder sheets for Grades 6–7, best once the basics of the skill are secure.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Start with the row, column or box that has the most numbers already filled in.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.