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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 36 times so far,
abcdefghi
1 
8
9
21
22

15
13

16
2 




14




3 
8
7




12
13

4 


11
15

16


4
5 
13






12

6 
13

14


26
11

12
7 

24





14

8 
10


13


13

14
9 

12







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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