## Help with Superior 44

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### Help with Superior 44

I love the Times Superiors but have been stuck on 44 for a while. Any clues to what I should be looking for would be great.
anderson

Posts: 2
Joined: 14 June 2006

Code: Select all
` *-----------* |...|82.|.7.| |3..|5..|..1| |.24|..1|...| |---+---+---| |.71|...|5..| |2..|...|..8| |..5|...|62.| |---+---+---| |...|7..|36.| |1..|..9|..7| |.5.|.36|...| *-----------*`
Sped

Posts: 126
Joined: 26 March 2006

There's a triple in Box 3 for starters; 4, 8, 9 can each exist in any one of three cells but not in the other cells in that box:
Code: Select all
`---------------------------* |49       7        3469   | |2489     48       1      | |89       58       369    |-+-------------------------|`

Which reduces to:
Code: Select all
`---------------------------* |49       7        36     | |2        48       1      | |89       5        36     |-+-------------------------|`
underquark

Posts: 299
Joined: 06 September 2005

underquark wrote:There's a triple in Box 3 for starters; 4, 8, 9

"For starters" is right!

Hi, anderson,

Assuming you got this far with singles and doubles:

Code: Select all
`+-------------------+-----------------+-----------------+| 569    1     69   | 8    2     34   | 49  7     34569 || 3      689   6789 | 5    4679  47   | 2   489   1     || 56789  2     4    | 369  679   1    | 89  3589  3569  |+-------------------+-----------------+-----------------+| 4689   7     1    | 369  4689  2    | 5   349   349   || 2      3469  369  | 369  4569  345  | 7   1     8     || 489    3489  5    | 1    4789  3478 | 6   2     349   |+-------------------+-----------------+-----------------+| 489    489   289  | 7    1     58   | 3   6     259   || 1      36    36   | 2    58    9    | 48  458   7     || 789    5     2789 | 4    3     6    | 1   89    29    |+-------------------+-----------------+-----------------+`

Remove 489 from all but r1c7, r3c7, r2c8 as instructed by underquark

Also remove excess candidates to expose this triple
r2c3=78, r7c3=28, r9c3=278

That gets you to here

Code: Select all
`+------------------+-----------------+--------------+| 569    1     69  | 8    2     34   | 49  7    356 || 3      689   78  | 5    4679  47   | 2   489  1   || 56789  2     4   | 369  679   1    | 89  35   356 |+------------------+-----------------+--------------+| 4689   7     1   | 369  4689  2    | 5   349  349 || 2      3469  369 | 369  4569  345  | 7   1    8   || 489    3489  5   | 1    4789  3478 | 6   2    349 |+------------------+-----------------+--------------+| 489    489   28  | 7    1     58   | 3   6    259 || 1      36    36  | 2    58    9    | 48  458  7   || 789    5     278 | 4    3     6    | 1   89   29  |+------------------+-----------------+--------------+`

where my expertise runs out. Good Luck.

I will post this on the forum where more experts reside
http://forum.enjoysudoku.com/viewforum.php?f=17
entitled "Stuck"

Mac
QBasicMac

Posts: 441
Joined: 13 July 2005

Look at the 4s in box 6 and column 9.

Then look at the 9s in box 3 and column 7.

Then you'll find a triple.

It's all pairs and singles from there.
Sped

Posts: 126
Joined: 26 March 2006

It may not have been needed, but I also used an x-y wing of 4,8,9 in boxes 3 and 9 to eliminate the 9 at R2C8.
Hud

Posts: 570
Joined: 29 October 2005

Sped wrote:Then look at the 9s in box 3 and column 7.

Yep, missed that as pointed out on the other forum.

After that, no more tricks - just doubles and singles.

Mac
QBasicMac

Posts: 441
Joined: 13 July 2005

Thanks all with the help, all sorted, some times you cant see the trees for the wood.
anderson

Posts: 2
Joined: 14 June 2006