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Calcudoku:4×45×56×67×79×98×8Killer SudokuSudoku
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Killer Sudoku

Easy        

13 Aug 2012   Show solution   Rating:
Points: 5 (solved 229 time(s) so far)
8
7

9

14
11
13
11

20

20
12




14

19


8

16







5

4
6


6

16

10

8
18

15

7


15


4

21


10

20


21


3

9

11


4

10


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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Many more Sudoku variations are at Planet Sudoku.