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How to solve Videos      Forum Timed Rankings Books Specials Print
23 May 2017
Rating: 
★★★
 Points: 7     Solved 27 times
abcdefghi
1 
8

5
15

7
12
12
8
  1  
Clear
  2  
Undo
  3  
Bold
  4  
 Pencil
  5  
  6  
  7  
  8  
  9  
2 
16


16





3 
15

15

24

8

9
4 

10

8


9


5 
12

15

20

16


6 



9

18

12
10
7 

12







8 
18


20


12
25

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.


Undo Clear all cells Clear all non-bolded
total
All puzzles published on this site are © Patrick Min. Send your ideas and suggestions to



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