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Calcudoku:4×46×68×89×98×8Killer SudokuSudoku
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Killer Sudoku

Difficult    

18 Aug 2012   Hide solution   Rating:
Points: 9 (solved 88 time(s) so far)
abcdefghi
1 
16
7
16
5

2

9
11
1

6
15
4

3

8
2 

3
21
9
3
1

2
24
8

4
13
6
13
5

7
3 

6

4

8
10
7

3

5

2
10
9

1
4 
20
8

7
18
6

3

4

2
17
9

1
9
5
5 

5

3

9
18
6

7
10
1

8
8
2

4
6 
15
2
13
1

4

8
7
5

9
8
7

6
9
3
7 

9

8
25
5

4

2
10
3

1
15
7

6
8 

4
9
6

3

1

9

7
8
5

8
15
2
9 

1

2

7
19
5

6

8

3

4

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