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Calcudoku size:4×45×56×67×78×88×8Killer SudokuSudoku
Level:EasyMediumDifficultEasyMediumDifficultMediumMediumDifficultMediumExtraMediumEasyMedium
8 Aug 2012   Show solution   Rating:
Points: 7 (solved 6 time(s) so far)
abcdefghi
1 
10

10

17
3
15
10

2 
16


8




11
3 
24

13

13

14


4 





9

15

5 
13
11

21


18
7

6 


16

16



18
7 
9
23



9



8 



4


12


9 


16


12

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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