## problem with a very hard puzzle

Advanced methods and approaches for solving Sudoku puzzles

### problem with a very hard puzzle

i can't solve this puzzle.. can someone help me please? it drives me nuts!!

thanking you in advance!

if you can't see:
Code: Select all
`|000|700|100||781|002|005|[u]|950|001|007|[/u]|800|000|573||073|000|800|[u]|540|000|000|[/u]|208|600|459||405|800|760|[u]|007|004|000|[/u]`
Paz_S

Posts: 8
Joined: 11 June 2005

First of all, you can also place the number 3 in column 1. (Look at box 9, and then figure out what that means for box 7 and finally for column 1).

Then you should look at row 6. You will find a pair in that row and after that you can fill in the number 3.
Animator

Posts: 469
Joined: 08 April 2005

i didn't understand.. :/
Paz_S

Posts: 8
Joined: 11 June 2005

Paz

look at box 9 - which cells can 3 go in?

Now look at column 1. Which cells cannot have a 3 in them?
Arnie

Posts: 49
Joined: 19 May 2005

oh!!!! i understood!!!
niceeee
thank you!!!
Paz_S

Posts: 8
Joined: 11 June 2005