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Calcudoku:4×46×68×89×97×7Killer SudokuSudoku
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Killer Sudoku

Difficult    

18 Aug 2012   Hide solution   Rating:
Points: 9 (solved 138 time(s) so far)
abcdefghi
1 
24
9
9
8

1
15
2

6

7
15
4

5
11
3
2 

4

2
15
5

3
22
9

8

6

7

1
3 

6

3

7
13
1

4

5
13
8

2
16
9
4 
30
1

5
17
2

6

8
13
4

3
14
9

7
5 

8

6

3

9

7

2

1

4
13
5
6 

7
26
4

9

5
28
1

3
15
2

6

8
7 
14
3

9

8

4

5

6

7
15
1

2
8 

2
11
1

6
18
7

3

9
14
5

8

4
9 
12
5

7

4

8
3
2

1

9
9
3

6

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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