## SUPERIOR SUDOKU 18 - part 2

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### SUPERIOR SUDOKU 18 - part 2

I see that there has been another post on this but I am stuck at a different point and would appreciate anyone's help. I am particularly disappointed as I have used two X wings but to no avail. Sorry to be dim. Thanks.

|---|24 24 -|---|
|---|- 16 16|---|
|---|79 79 -|---|

|- 26 17|126 --|167 --|
|26 --|1679 679 27|-- 12|
|-- 17|126 --|167 36 123|

|26 --|- 167 27|--17|
|- 26 -|2467 24 -|- 36 37|
|---|-- 16|16 --|
NKL

Posts: 10
Joined: 06 October 2005

### Re: SUPERIOR SUDOKU 18 - part 2

Code: Select all
`               | 24   24        |                               |      16   16   |                               | 79   79        |                ---------------+----------------+----------------     26   17   | 126            | 167            26             | 1679 679  27   |           12             17   | 126            | 167  36   123  ---------------+----------------+----------------26             |      176  27   |           17        26        | 2467 24        |      36   37                  |           16   | 16             `

I can't see anything from this - possibly colouring may be needed. But I can't dub into Simple Sudoku without the original puzzle - all the clues/numbers you've already entered. Just the remaining candidates don't seem to be enough.

If no-one gives the next step, can you post the puzzle, as you've completed to this point?
Shazbot

Posts: 220
Joined: 24 September 2005

I think the original puzzle was solved with Xwings but here you have a swordfish of 2s r148 c245 => eliminate 2 at r6c4.

That gives a triple in r6 => eliminate 1 at r6c9 => r6c9 must be 2 => solution.

Actually you don't need the triple.

PS : I like it when Shazbot gets to a puzzle first - he always sets it out so nicely!
emm

Posts: 987
Joined: 02 July 2005

### Re: SUPERIOR SUDOKU 18 - part 2

If you look at the other post for this Puzzle you will find that you can solve the Puzzle with an X - Wing on 2, in R5C1, R7C1, R5C6, R7C6 (* cells). which allows you to eliminate the 2's in R5C4 & R5C9. Leading to a Naked Single (**).

Shazbot wrote:
Code: Select all
`               | 24   24        |                               |      16   16   |                               | 79   79        |                ---------------+----------------+----------------     26   17   | 126            | 167            26*            | 1679 679  27*  |           12(**)             17   | 126            | 167  36   123  ---------------+----------------+----------------26*            |      176  27*  |           17        26        | 2467 24        |      36   37                  |           16   | 16             `

Shazbot the original code:

- 7 - - - - - 1 6
- - 2 3 - - 9 - 5
- - 6 - - 5 - 8 -
- - - - 5 - - - 8
- 3 - - - - - 4 -
9 - - - 8 - - - -
- 9 - 8 - - 4 - -
1 - 5 - - 9 8 - -
7 8 - - - - - 2 -

this can also be found at:
http://www.timesonline.co.uk/sudoku
Crazy Girl

Posts: 189
Joined: 08 November 2005

Thanks Crazy Girl, I did have a look for references to the puzzle in other posts but none stood out (only #11 and #14 if I remember), so I went to that site, but didn't have enough time to figure out where it was. I know now - thanks.

em wrote:PS : I like it when Shazbot gets to a puzzle first - he always sets it out so nicely!

Shazbot

Posts: 220
Joined: 24 September 2005

Thanks to Crazy Girl. I had looked at the first post but I had seen the x wing of 2s and applied it, however, I had not applied it across to column 9. Another step in logic learnt for me. Thanks.
NKL

Posts: 10
Joined: 06 October 2005

Well, I never! Gender can be such a confusing issue. The very thing I have accused others of previously and I am guilty of it too. Sorry!

PS : Now your music poll response fits!
emm

Posts: 987
Joined: 02 July 2005

### Re: SUPERIOR SUDOKU 18 - part 2

NKL wrote:I see that there has been another post on this but I am stuck at a different point and would appreciate anyone's help. I am particularly disappointed as I have used two X wings but to no avail. Sorry to be dim. Thanks.

|---|24 24 -|---|
|---|- 16 16|---|
|---|79 79 -|---|

|- 26 17|126 --|167 --|
|26 --|1679 679 27|-- 12|
|-- 17|126 --|167 36 123|

|26 --|- 167 27|--17|
|- 26 -|2467 24 -|- 36 37|
|---|-- 16|16 --|

I have a solution, i can send it to you just give me your email so i can send it. thanks! just wanna help out.
foxface

Posts: 4
Joined: 08 December 2005

Thanks but my post of 1st December was to say that I had solved it after the other replies.
NKL

Posts: 10
Joined: 06 October 2005