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Calcudoku size:4×45×56×67×78×810×10Killer SudokuSudoku
Level:EasyMediumDifficultEasyMediumDifficultMediumMediumDifficultMediumExtraMediumEasyMedium
15 Aug 2012   Show solution   Rating:
Points: 7 (solved 228 time(s) so far)
abcdefghi
1 
9

11
9

13

12

2 
16


16

14

18

3 

14


26



8
4 
10
10

10



7

5 


14

12

18

14
6 
12
15

5





7 




19
12

11

8 


7


15
14

17
9 
17








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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