Welcome to SpelGrodan.se

The friendliest Sudoku site in the world.
No app or registration required!



Create a Sudoku account

If you want, you can create a free Sudoku account to register a Nickname, collect Sudoku points, and climb the rankings and levels! Join our community!







Sudoku Leaderboard

NicknamePoints
Solna78

Level: 1

7
Svempa

Level: 1

4
Anna95

Level: 1

2
Peter J

Level: 1

1

Organizer Account

We also offer free organizer accounts for companies, associations, and event centers. Provide your customers with access to digital entertainment, such as Sudoku. After a customer completes a game, a special offer from you is displayed – a convenient way to engage customers and collect email addresses. This makes it easy to send out news, offers, and information about upcoming events. Customers simply scan a QR code with their phone and get started in seconds – no app required!




Create a Sudoku account

Create a free Sudoku account, register a Nickname, collect points, and climb the rankings and levels!











Cafés

SpelGrodan offers all cafés a free organizer account, making it easy for your guests to start playing Sudoku. No app required. Guests simply scan a QR code with their smartphone to access the Sudoku game. Sudoku can be played solo or collaboratively to solve the puzzle. You can then choose to reward completed Sudoku games with, for example, a discount on a cake or similar. The idea is that the Sudoku game should drive additional sales and enhance the experience. It is also possible to collect email addresses if you wish to send out newsletters. Start by creating a free account!

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Solve Sudoku.

There are many different methods for solving Sudoku. Hidden Single and Naked Single are among the most basic techniques for solving a Sudoku.


Create an organizer account on SpelGrodan.se and gain access to the control panel, where you as a company (or organizer) can create targeted offers, among other features, for your customers..





Pubs & Events

SpelGrodan offers pubs and event centers free digital entertainment in the form of Sudoku. In addition to providing Sudoku games, you can reward your guests with offers upon solving Sudoku, such as half-price peanuts at the bar. Show your mobile device upon completing the game. It is also possible to collect email addresses from your guests if you wish to send out newsletters about upcoming events, offers, and news. Start by creating a free account!

Sudoku.

Sudoku is an excellent form of brain exercise that activates the mind and improves memory, concentration, and problem-solving skills. The program can create an unlimited number of Sudoku puzzles with varying difficulty levels. Sudoku is a logical number game that serves as excellent brain training. In Sudoku, you must place the numbers 1 to 9 in such a way that each horizontal row, vertical column, and 3 × 3 box contains each number exactly once.

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