Calcudoku logo

How to solve Video      Forum Timed Rankings Books Specials Print
Calcudoku:4×46×68×89×97×7Killer SudokuSudoku
Select level:EasyMediumDifficultEasyMediumDifficultMediumDifficultDifficultExtraDifficultEasyMedium

Killer Sudoku

Difficult    

18 Aug 2012   Hide solution   Rating:
Points: 9 (solved 115 time(s) so far)
abcdefghi
1 
16
6
18
5

4
15
8
12
7

1
11
3

2
21
9
2 

8

9
4
3

5

2

4

6

1

7
3 

2
14
7

1
16
9

3
20
6

5
15
8

4
4 
28
7

3
16
8

4
11
5
12
2

9

6

1
5 

9

4

2

1

6

3

7
15
5

8
6 

1

6

5
25
7
17
8

9
15
4

3

2
7 

5
17
2

9

6

1
23
7

8
20
4
14
3
8 
7
3

8

7

2
13
4

5

1

9

6
9 

4
10
1

6

3

9

8

2

7

5

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.

Do you enjoy this site? Support it by becoming a subscriber! (no ads, more puzzles, free books)

The last 20 solved puzzles (       = by subscriber):total
Cell size for 9×9:  small medium large
   
All puzzles published on this site are © Patrick Min. Send your ideas and suggestions to



Server time: Saturday 25 October 2014, 20:53:29 Central European Time. Page processing time: 0.039 sec. Page load time sec.