## Is it me or is it the puzzle?

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

### Is it me or is it the puzzle?

Hello. I've been enlisted to join the beta testing team on a program called Ichiban Sudoku from a company called Vellosoft.

I'm totally stuck at this point and I'm wondering if it's me or maybe I need to report back to them that they've created a puzzle that doesn't have a logical solution. (Most likely it's me, because I'm not the most experienced sudoku solver in the world, but if it's on the puzzle itself, I've got to let them know.)

Here it is. This is from the genius level.

Code: Select all
`6     128   5     |34    48    28    |7     123   97     4     389   |369   1     2689  |368   5     2368123   128   1389  |7     689   5     |1368  1236  4--------------------------------------------------------8     5     46    |2     7     1     |9     346   3612    3     14    |69    689   689   |45    7     1259     126   7     |5     3     4     |168   126   1268--------------------------------------------------------4     7     2     |8     5     3     |16    9     1613    9     136   |146   2     7     |45    8     355     168   1368  |1469  469   69    |2     34    7`
gonzo

Posts: 4
Joined: 17 March 2006

It's you. No exotic solving tactics are required.
tso

Posts: 798
Joined: 22 June 2005

No need to be genius. Look at the 3 in column 7/box 3 for the next step.
ravel

Posts: 998
Joined: 21 February 2006

I can see the 3in box 3 and in column 7 are the only 3 at column 7.How do u continue?
Kent

Posts: 98
Joined: 28 February 2006

Thanks for the replies, I thought it was probably me . . .

I'm looking at column 7 / box 3 and I still don't see how you solve any of the cells to a 3. Can you tell me which technique it is that I'm missing?
gonzo

Posts: 4
Joined: 17 March 2006

(i.e., what Kent said . . . )
gonzo

Posts: 4
Joined: 17 March 2006

gonzo wrote:(i.e., what Kent said . . . )

In column 7, the only 3's are in box 3. Therefore, 1 of those must be a 3 (else there would be no 3 in column 7).
Therefore, all of the other 3's in box 3 can be removed.

Once you do that, there is only one 3 in row 1.

Tw
Tumbleweed

Posts: 12
Joined: 22 July 2005

What you have go is locked candidates, as all 3's in column 7 are in Box 3 the rest of the 3's in Box 3 can be eliminated.. with me so far ... Now where can 3 go in Row 1.

For more techniques i suggest you check out the links below
http://www.angusj.com/sudoku/hints.php
http://www.simes.clara.co.uk/programs/sudokutechniques.htm

Tumbleweed sumbitted her/his post before i did, so sorry for the repeat post
Crazy Girl

Posts: 189
Joined: 08 November 2005

Ding! The light-bulb just went off. Thanks to both of you for taking the time to reply!

I'll be checking out those links, too. Thanks!
gonzo

Posts: 4
Joined: 17 March 2006