We like to receive at
your suggestions for improvements and additions to this website.

a

b

c

d

e

f

g

h

i

1

A

2

B

3

C

4

D

5

E

6

F

7

G

8

H

9

I

LEV
PUZ

When solving a killer sudoku
you must follow all the rules of the standard sudoku.

A Killer Sudoku is divided into regions and the sum of the digits in each region is indicated
in the upper left cell of each region. This variant is very challenging and pushes your puzzle solving skills to their limits.