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Calcudoku:4×45×56×68×812×128×8Killer SudokuSudoku
Level:EasyMediumDifficultEasyMediumDifficultEasyMediumDifficultMediumDifficultno-opEasyEasyMedium
12 Aug 2012 (solution tomorrow)
     Rating:  
     Points: 5     Solved 65 times so far
abcdefghi
1 
7

11
10
9
15

9

  1  
    Clear    
  2  
    Undo    
  3  
    Bold    
  4  
  Pencil 
  5  
        
  6  
        
  7  
  8  
  9  
2 
7
11



11
18

5
3 


17
8
1


16

4 
7
14

12


12

12
5 




18


8

6 
10
18

6

19


7
7 

4


22


8

8 
21

8


14
17

13
9 









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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