Loading game
Unfortunately, there are no active events at the moment. Come back and check this section later!
While we are preparing the New Event you can complete the Daily Challenge or play Classic and Killer Sudoku.
Event Completed
Event ends in:
clock
Great Job!
You've unlocked all the postcard cells! The reward is yours!
To Main Page
sudoku app icon
Sudoku.com - Number Games
Easybrain
To start playing, select a postcard cell. Different colors correspond to different difficulties: easy, medium, hard, expert.
Unlock all the cells to open a unique postcard and get a reward!
Hurry! The event will only be available for a limited time!
Sudoku Tips and Articles
How to Solve Sudoku Puzzles – A Complete Walkthrough, Part 3
How to Solve Sudoku Puzzles – A Complete Walkthrough, Part 3

In the previous article in this series on how to solve Sudoku puzzles, we solved 1/3 of the grid using process of elimination and paying attention to which numbers were missing, and then tying up the loose ends and finishing up where our thought process led us. Now it’s time to look to some different parts of the grid and see what we can see.

Continue Reading
3 Reasons to Play Sudoku Online Rather than on Paper
3 Reasons to Play Sudoku Online Rather than on Paper

In the early days of the Sudoku craze, Sudoku used to be played with pen and paper. Commuters played Sudoku on newspapers on their laps, or in paper Sudoku books with dozens or hundreds of pages of puzzles. The reason for this legacy of pen and paper is because Sudoku used to be published in newspapers – in fact, the first number puzzles similar to modern Sudoku puzzles appeared in a French newspaper in 1895.

Continue Reading