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Calcudoku size:4×45×56×68×812×128×8Killer SudokuSudoku
Level:EasyMediumDifficultEasyMediumDifficultMediumDifficultMediumDifficultDifficultExtraMediumEasyMedium
16 Aug 2012   Show solution
     Rating:  
     Points: 7     Solved 107 times so far,
abcdefghi
1 
12

10

6

9

12
2 
19

11

18
5

22

3 

29

11





4 




7

10
12
7
5 
19

15

14




6 



9

22

14
11
7 

7


12




8 
15
11

19

23



9 







14

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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All puzzles published on this site are © Patrick Min. Send your ideas and suggestions to



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