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Calcudoku:4×45×56×67×78×87×7Killer SudokuSudoku
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Killer Sudoku

Medium        

15 Aug 2012   Show solution   Rating:
Points: 7 (solved 223 time(s) so far)
14

11

5

15
7

7
26
18


21


27










14

8
13

8


16

13


25

6




8




15
11

16
18
8

7
17

9



19



5

9




9


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.