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VH+ by JPF (game 0006)

 
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ravel



Joined: 21 Apr 2006
Posts: 536
PostPosted: Mon Oct 20, 2008 3:01 pm    Post subject: VH+ by JPF (game 0006) Reply with quote
Code:
 +-------+-------+-------+
 | . . 1 | 2 . . | . 3 . |
 | . . 4 | 5 . 6 | . . 2 |
 | 2 7 . | 4 . . | . . . |
 +-------+-------+-------+
 | 6 2 8 | . . . | . 1 . |
 | . . . | . . . | . . . |
 | . 4 . | . . . | 6 9 8 |
 +-------+-------+-------+
 | . . . | . . 3 | . 6 9 |
 | 9 . . | 1 . 4 | 8 . . |
 | . 8 . | . . 5 | 7 . . |
 +-------+-------+-------+ JPF
>>> play online
Quite easy, if you look around the corner.
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Kdelle



Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH
PostPosted: Mon Oct 20, 2008 9:45 pm    Post subject: Reply with quote
Ravel,

HELP!!!! I'm getting nowhere fast with this "quite easy" puzzle! After basics, I'm here:

Code:

+----------------+---------------+----------------+
| 58   569  1    | 2   789   789 | 459  3    4567 |
| 38   39   4    | 5   13789 6   | 19   78   2    |
| 2    7    3569 | 4   1389  189 | 159  58   56   |
+----------------+---------------+----------------+
| 6    2    8    | 379 45    79  | 345  1    457  |
| 1357 1359 359  | 68  4568  18  | 2345 2457 457  |
| 1357 4    35   | 37  15    2   | 6    9    8    |
+----------------+---------------+----------------+
| 145  15   25   | 78  78    3   | 245  6    9    |
| 9    56   7    | 1   26    4   | 8    25   3    |
| 34   8    236  | 69  269   5   | 7    24   1    |
+----------------+---------------+----------------+

Play this puzzle online at the Daily Sudoku site


I don't understand your hint! I thought it might be an ER, but I haven't mastered that technique and can't find one. How about another hint? What am I missing?

Thanks,

Kathy
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Tue Oct 21, 2008 7:21 am    Post subject: Reply with quote
Code:
.---------------------.---------------------.---------------------.
| 58     569    1     | 2      789    789   | 459    3      4567  |
| 38     39     4     | 5      13789  6     | 19     78     2     |
| 2      7      3569  | 4      1389   189   | 159    58     156   |
:---------------------+---------------------+---------------------:
| 6      2      8     | 379    45     79    | 345    1      457   |
| 1357   1359   3579  | 68     14568  18    | 2345   2457   457   |
| 1357   4      357   | 37     15     2     | 6      9      8     |
:---------------------+---------------------+---------------------:
| 1457   15     257   | 78     278    3     | 1245   6      9     |
| 9      356    23567 | 1      267    4     | 8      25     35    |
| 134    8      236   | 69     269    5     | 7      24     134   |
'---------------------'---------------------'---------------------'
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ravel



Joined: 21 Apr 2006
Posts: 536
PostPosted: Tue Oct 21, 2008 7:29 am    Post subject: Reply with quote
Hi Kathy,

you already found the coloring step (r3c9<>1, r6c7<>1), which i saw as a useless skyscraper (r69), where you can "transport" the pincer in r6c5 "around the corner" (r2c5) to r2c7.
There is a "useless" wing in your grid, which can be used the same way to solve the puzzle.
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Kdelle



Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH
PostPosted: Thu Oct 23, 2008 9:37 pm    Post subject: Reply with quote
Ravel,

The only "useless" wing I can see is 256 in R78 and I don't see that "transporting" the 2 helps. Am I missing another "useless" wing?

Thanks.

Kathy
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Thu Oct 23, 2008 10:39 pm    Post subject: Reply with quote
not sure which way ravel saw it, but here is a hint for the way I saw it.

Code:
.---------------------.---------------------.---------------------.
| 58    #569    1     | 2      789    789   | 459    3     #4567  |
| 38     39     4     | 5      13789  6     | 19     78     2     |
| 2      7      3569  | 4      1389   189   | 159    58    #56    |
:---------------------+---------------------+---------------------:
| 6      2      8     | 379    45     79    | 345    1      457   |
| 1357   1359   3579  | 68     14568  18    | 2345   2457   457   |
| 1357   4      357   | 37     15     2     | 6      9      8     |
:---------------------+---------------------+---------------------:
| 1457   15     257   | 78     278    3     | 245    6      9     |
| 9     #56     2567  | 1      267    4     | 8      25     3     |
| 34     8      236   | 69     269    5     | 7      24     1     |
'---------------------'---------------------'---------------------'

the marked cells above form a useless wing and you can extend the pincers of one side quite nicely.
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Kdelle



Joined: 20 Mar 2008
Posts: 59
Location: Hudson, NH
PostPosted: Fri Oct 24, 2008 2:35 am    Post subject: Reply with quote
Norm, thanks.

I must have made a bad elimination early on.
Once I used your grid, that transported W wing did the trick....I could see it in mine, but could not solve it.

Really appreciate the help!

Kathy
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