## Need more brain

Post the puzzle or solving technique that's causing you trouble and someone will help

### Need more brain

I'm quite new to Sudoku and this puzzle drives me crazy.
This is the original Sudoku:

Code: Select all
`. . . | 6 . . | . . .. . 3 | 9 . . | . . .. . 5 | 7 . 1 | 4 8 .------------------------. . . | . . . | 9 4 2. . . | . . . | . . .6 3 8 | . . . | 5 . .------------------------. 7 2 | 3 . 5 | 1 . .. . . | . . 9 | 6 . .. . . | . . 8 | . . .`

Logic brings me to:
Code: Select all
`. . . | 6 . 3 | . . 9. . 3 | 9 . 4 | . 6 .9 6 5 | 7 2 1 | 4 8 3------------------------. . . | 8 3 6 | 9 4 2. . 9 | 5 1 7 | 8 3 66 3 8 | 4 9 2 | 5 . .------------------------. 7 2 | 3 6 5 | 1 9 .3 . . | . . 9 | 6 . .. 9 6 | . . 8 | 3 . .`

And now I'm stucked.
Can it be ambiguous??

Can anybody give me a hint?

THX.
wise

Posts: 3
Joined: 08 June 2005

Perhaps there is no further logical step, some puzzles (though not any of Pappocom's) require trial-and-error. Where did the puzzle come from?
Last edited by simes on Sun Dec 11, 2011 2:37 pm, edited 1 time in total.
simes

Posts: 324
Joined: 11 March 2005
Location: UK

simes wrote:Perhaps there is no further logical step, some puzzles (though not any of Pappocom's) require trial-and-error. Where did the puzzle come from?

A friend gave me the puzzle, but it's from "The Guardian" I think .
wise

Posts: 3
Joined: 08 June 2005

This puzzle has multiple solutions... so I'm guessing your friend left out a clue... or that the puzzle is intented to have multiple solutions.
Animator

Posts: 469
Joined: 08 April 2005

This puzzle has multiple solutions... so I'm guessing your friend left out a clue... or that the puzzle is intented to have multiple solutions.

Thanks so far.
I'll check it.
wise

Posts: 3
Joined: 08 June 2005

I verified it myself and it is missing a clue.

r4c3 has to be the number 1.

Original puzzle: http://image.guardian.co.uk/sys-files/Guardian/documents/2005/05/25/GdnSudoku016_050526.pdf (other Guardian puzzles: http://www.guardian.co.uk/sudoku )
Animator

Posts: 469
Joined: 08 April 2005