Martin Schlüter
self-employed (German/Englisch)
Bio
Martin Schlüter is the operator of this website, he also created and programmed it himself. He also wrote most of the texts. He has over 20 years of experience in IT and programming
Other areas of interest include current politics, personal development and international/global current affairs.
Published Articles:
Sudoku competition; challenge your friends!
The online Sudoku also has a competition mode. After a player has solved and checked a Sudoku, he can share his result on social media or via Messenger, so others can solve the same Sudoku via the shared link and get his result displayed as a challenge.
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Sudoku - 120 new Sudoku puzzles every day!
What are the Sudoku rules? - The Sudoku rules are quite simple, each number from 1 to 9 may only appear once in each row, column and quadrant. The Sudoku playing field consists of 9 columns and 9 rows, which are then divided into 9 3 x 3 quadrants.
What determines the difficulty of a Sudoku? - The level of difficulty is determined solely by the techniques required to solve it.
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Sudoku Online - 120 new Sudoku every day!
Sudoku Online - Instructions for use - The online Sudoku can be operated very simply using the mouse.
Select the date, number and difficulty and off you go!
Have fun solving the Sudoku!
Operating instructions for the online Sudoku - By clicking in an empty Sudoku field, 9 small numbers appear.
These small numbers can be shown and hidden individually by a simple mouse click, so you can easily remember which numbers you have already excluded and which not.
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Printable Sudoku - Sudoku PDF
New printable Sudoku every day - Every day there are 24 Sudokus in 5 levels of difficulty. The number of Sudokus per page can be selected, 1, 2, 4, 6 or 12 Sudokus per A4 page, so there is the right size for everyone.
The 24 Sudokus are each divided into 2 PDFs, so each PDF has 12 printable Sudokus with solutions, ideal for printing out. All Sudokus from the PDF files can of course also be solved as online Sudokus.
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Sudoku for websites and print media
Sudoku for websites and print media - We also offer Sudoku for external media, i.e. websites and print media.
Sudoku for your own website - The previously offered version of our Sudoku for other websites is outdated for various reasons, on the one hand it was not responsive, i.e. partly not usable on smartphones, on the other hand an iframe was directly integrated by us, this is sometimes considered questionable in terms of data protection, even if we do not analyze the IP addresses any further.
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