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Calcudoku:4×45×56×67×79×96×6Killer SudokuSudoku
Level:EasyMediumDifficultEasyDifficultEasyMediumDifficultMediumDifficultDifficultExtraEasyEasyMedium
13 Aug 2012 (solution tomorrow)
     Rating:  
     Points: 5     Solved 172 times so far
abcdefghi
1 
6
10
4
12

6

12

  1  
    Clear    
  2  
    Undo    
  3  
    Bold    
  4  
  Pencil 
  5  
        
  6  
        
  7  
  8  
  9  
2 
13


8
11

17

8
3 

21


17

15


4 
5

15


11

7

5 

7

13
3


17

6 
8

10


17

9

7 

10

15


7

25
8 
17

17


13



9 



19





You can solve the puzzle using the number + arrow keys, or the mouse. Use shift + number to toggle guesses, the space bar to clear a cell, and 'backspace' for undo. Press '=' to highlight the number in a cell.

A Killer Sudoku is the same as a Calcudoku puzzle, except:

  • the operator is always + (and not shown)
  • every 3×3 box has the numbers 1..9 exactly once
  • a cage also can not have duplicate numbers (!)

You can also solve the puzzles on the iPhone/iPod Touch/iPad and the Kindle 3.


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