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Sudoku

Sudoku Practice Round 40

Fixed Sudoku round 40: a easy 9×9 grid with notes, answer checking and a matching printable solution.

Easy12 minutesOnline + PDFAnswer included
00:00Time
0 / 39Progress
Select an empty cell, then enter a number or note.
Preparing your puzzle…The printable files remain available if interactive play cannot load.
How to play: Fill each row, column and 3×3 box with 1–9 exactly once. Use notes, undo, checks and limited hints when needed.

Challenge profile

Use notes for candidates, undo a move, check the grid or spend one of the limited hints. The printable file uses the same starting clues as the online board.

  • Starting position42 fixed clues and 39 cells to solve on the 9 × 9 board.
  • Solving supportCandidate notes, undo, conflict checking and limited hints are available without changing the printed puzzle.
  • Checked outputThe browser board and PDF use the same starting clues and complete solution.

Best for: Families, Students, Adults. Your unfinished progress stays in this browser so you can return later.

Difficulty
Easy
Estimated time
12 minutes
Theme
Number Logic
Grid
9 × 9
Starting clues
42

Questions about this puzzle

Can I play this sudoku online?

Yes. The full activity works in the page, and your progress is saved locally on this device.

Can I print it?

Yes. Download the puzzle PDF for players and the separate answer key when you need the solution.

Does this Sudoku have a matching solution?

Yes. The online grid, printable puzzle and solution file all use the same checked board.

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