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Calcudoku:4×45×56×67×78×88×8Killer SudokuSudoku
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Killer Sudoku

Medium        

15 Aug 2012   Show solution   Rating:
Points: 7 (solved 25 time(s) so far)
11
11
15

15

18

7



6

21
11


9

7

10


11
9
14


13


15



11


15


18

23
15

8

3





13


25
15


12


14




18





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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The last 20 solved puzzles (       = by subscriber):total
Cell size for 9×9:  small medium large
   

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Many more Sudoku variations are at Planet Sudoku.