Big-print sudoku 9 by 9: tricky puzzles: sudoku puzzle for Grade 12, page 1 preview

Sudoku puzzle · Logic & Puzzles

Big-print sudoku 9 by 9: tricky puzzles · Grade 12

Two large 9 by 9 sudokus, one per page, with about 25 clues each. Fill every row, column and 3-by-3 box with 1 to 9 using step-by-step deduction; each puzzle has exactly one solution.

Grade 12 · ages 17 to 18
Hard
30 to 40 minutes
2 pages
Free

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

Make another one like this

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 27 clues
2 25 clues

What your child practices

Your child practices logic and puzzles for Grade 12 with this sudoku puzzle.

Grades and ages: Grade 12, ages 17 to 18
Time: About 30 to 40 minutes
Subject: Logic & Puzzles
Level: Hard for Grade 12
Answer key: Yes, for grown-ups who sign in
Printing: 2 pages, 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 Grade 12, best once the basics of the topic are secure. Its 2 pages split well across two sittings.

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.