ATTENTION!
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open puzzles placed on this site.
FILES TO DOWNLOAD:
 
Sudoku solver in the form of Excel spreadsheet
(it can solve all puzzles placed on this site except these specified as 'diabolic').
Download file >>

 
Sudoku is a logic puzzle, believed to originate from Japan, in which the aim is to enter digits from
1 to 9 in each free cell of a 9x9 grid (some of the cells are filled at start), so that each row, each column and each of the
3x3 subgrids (also called squares or regions) contain only one instance of each digit. The puzzle became very popular in
Europe after British The Times launched it on November 12, 2004.


7 


6 
1 



8 


4 



3 

5 


9 

2 

4 
1 


5 




9 

3 

8 

7 

6 

2 


9 

3 


5 
6 

2 

7 


8 

7 



8 


4 



5 
6 


9 


Completing the puzzle requires only the logical thinking. There should be no need to use the
method of trials and errors. The above example of sudoku puzzle shows the most frequently used method of cell elimination.
In this case it allows to point the only cell of the center square where '9' can be put.
The same way the location of '8' in righttop square can be assigned.
From the dropdown lists placed in the lefttop area of the current page you can choose sudoku puzzles
with different levels of difficulty. Furthermore, you can click the 'Enter own sudoku' button placed a bit
lower and define your own puzzle. Puzzles can be solved directly on screen  each sudoku opens in quite a small window,
which can be easily located among other applications on your desktop. If you run out of ideas, in every moment you can get some
hints through the builtin sudoku solver. Each sudoku can be also transformed into a clear print version, so you can solve the
puzzle traditionally  with pencil and a piece of paper.
HAVE A GOOD FUN!
