Free medium sudoku online
Sudoku is the number puzzle found in newspapers all over the world. It needs no arithmetic, only logic. Every puzzle here is made fresh when you press New game and has exactly one solution. These medium puzzles suit most players: not trivial, never unfair.
How to play sudoku
- Fill the grid so that every row, every column and every 3×3 box contains each of the numbers 1 to 9 exactly once.
- Tap a square, then tap a number below the grid. On a computer you can use the number and arrow keys.
- A number shown in red does not belong in that square.
- Switch on Notes to pencil small candidate numbers into a square.
- Erase clears a square and Undo takes back your last step.
Sudoku tips
- Start with the number that appears most often and look for the boxes where it is still missing.
- Look for a row, column or box with only one or two empty squares.
- When a square can hold only two numbers, note them. Pairs of notes often unlock the rest.
Other levels: Easy Sudoku · Hard Sudoku.
More free games
- Klondike Solitaire
- Klondike Turn 3
- Spider Solitaire
- Spider Solitaire 2 Suits
- Spider Solitaire 4 Suits
- FreeCell
- Pyramid Solitaire
- TriPeaks Solitaire
- Golf Solitaire
- Yukon Solitaire
- Russian Solitaire
- Scorpion Solitaire
- Forty Thieves Solitaire
- Baker’s Game
- Seahaven Towers
- Easthaven Solitaire
- Spiderette Solitaire
- Double Klondike Solitaire
- Crescent Solitaire
- Canfield Solitaire
- Simple Simon Solitaire
- Beleaguered Castle Solitaire
- Australian Patience
- Westcliff Solitaire
- Aces Up Solitaire
- Minesweeper
- Minesweeper Intermediate
- Minesweeper Expert
- Sudoku
- Easy Sudoku
- Hard Sudoku
- Mahjong Solitaire
- Addiction Solitaire
- Peg Solitaire
- Memory Card Game