Medium Sudoku Online
Medium Sudoku puzzles with fewer numbers filled in than Easy, for players who know the rules and want more of a test.
How do you play Medium Sudoku?
A medium Sudoku gives you fewer numbers than an easy one. Start by filling the squares where only one number fits. When that slows down, switch Notes on and pencil in the possible numbers for each empty square. Then look for places where the notes leave one choice. Logic is always enough.
Sudoku rules
- The grid has 9 rows, 9 columns and nine 3 x 3 boxes. Some numbers are already filled in.
- Fill every empty square with a number from 1 to 9.
- Each row, each column and each 3 x 3 box must contain every number from 1 to 9 exactly once.
- Every puzzle has exactly one solution, and you can always find the next number by logic.
- A wrong number counts as a mistake. After three mistakes, you can watch a short ad for one more chance.
Medium Sudoku tips
- Fill in all the simple squares first, then turn Notes on for the rest.
- Keep your notes up to date. When you place a number, remove it from the notes in the same row, column and box.
- Look for two squares in one row, column or box that can hold only the same two numbers.
- If you get stuck, scan each number from 1 to 9 again. A new placement often opens up others.
More ways to play Sudoku
Medium Sudoku questions
How is medium Sudoku different from easy Sudoku?
Medium puzzles have fewer numbers filled in, so you need to look further before each step. Pencil notes become more useful.
How do you solve a medium Sudoku?
Fill in the simple squares first. Then pencil in the possible numbers for the empty squares and look for a square or number with only one choice left.
Can medium Sudoku be solved without guessing?
Yes. Every puzzle here has exactly one solution and can be solved by logic.
Is medium Sudoku free to play here?
Yes. It is free with no download and no sign-up, and it never uses real money.
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