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Online Sudoku
With a single klick in an empty Sudokufield, 9 little numbers will appear.
By clicking a number, you can hide it or make it visible. You then have the option to mark any number that is ruled out and any number that is not.You can use two colors - black and green. It is all up to you whether to use only one color or both
When you double click on a little number, this number will be the one that would appear on the field. If not satisfied with your choice of number, just click on it again to go back to the option of 9 little numbers
After pressing the "Examine" button, all of the wrongly entered numbers will be underlined and a little question mark is placed next to the number. You can change this number by double clicking on it. If you do so, the 9 little numbers will appear once again and you can make your choice once more.
Sudoku Online - Smartphone / Tablet
On smartphones or tablets the small numbers are too small to switch or activate them and doubleclick isn't working to confirm the right number.So there is an extra control window in the mobile/tablet mode for this.
A mouseclick or fingertouch into a field with the small numbers open a window to operate the small numbers.
For every small number you find 4 control buttons, to switch the small number to black or green, to delete or confirm it.
At opening of the control window the actual status for every small number is marked with a colored frame.
Advice: On Android 4.3 or older the buildin webbrowser (Internet) has problems to show the control window, please use here then an other webbrowser!
Online Sudoku on a smartphone
Sudokus to print out
We recommend you to download the sudokus as PDF Files and print them out. There will be 24 new Sudokus everyday. These will have 5 levels each. All in all, you will be getting 120 fresh Sudokus to print out everyday.
The Sudokus in the PDF files are identical to those ones you can solve online.