How long does it take to solve Sudoku?

There is no single expected time for a Sudoku puzzle. The starting grid, the deductions you know and whether you use help all affect the attempt. A difficulty label alone is not enough to predict a finishing time.

What should a beginner aim for?

Start by explaining your placements and completing a puzzle correctly. If you are learning the rules, stopping to check a lesson is part of that practice. Try the beginner course before treating the timer as a target.

Why two puzzles at the same level can take different times

You might recognise a useful move immediately in one grid and overlook it in another. A mistake that needs undoing also changes the time. Difficulty names belong to the publisher's grading system; an Easy puzzle from one source need not match an Easy puzzle elsewhere. Our difficulty guide helps you choose a level on this site.

Make a useful personal comparison

• Use puzzles from the same source and difficulty.
• Record whether you used notes, hints or an answer key.
• Separate first attempts from puzzles you have solved before.
• Note interruptions and decide consistently whether your recorded time includes them.
• Look at several attempts before deciding that your pace has changed.

Keep a small solving log

Write one line after each session: puzzle date or identifier, difficulty, completed or unfinished, time if you measured it, help used and one observation. For example: “Medium; unfinished; checked a lesson; revisit the top-right box.” An unfinished attempt can still tell you what to practise.

What if I have only a short break?

Choose a comfortable level and stop when you need to. On paper, mark the area you want to revisit. You do not need to finish a whole grid for the session to be worthwhile. The focus guide includes a simple way to leave a clear restart point.

When you want to work on speed

Use the speed-practice routine to review where you pause, or follow the four-week practice plan. Choose a puzzle through daily Sudoku or the site's generated printable downloads.