Sudoku is a number-based puzzle which has already achieved immense popularity in Japan and the UK. Meanwhile, people across the world have developed an enthusiasm for this magical numeric square.
You can already get started by solving sudoku online or on paper. The great thing about it is that by becoming a member on our site, you take part in world competition. Gather points for your country and your region and of course, for yourself. We rank the top players for every day, every month and every year. You can register free of charge here and get started right away! Your membership brings you even more advantages: if at first you don't succeed, you can save your game in progress and continue at any point in the future, exactly where you left off. Should you at any point get the feeling that you cannot get any further, you don't need to call it quits – we'll reveal you a number!
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RulesThe rules are simple - but the solution isn't always easy! | ![]() |
Hints and tipsThere are various approaches which can take. Here are few examples. | |||