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Puzzle VH_057

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Sun Jul 12, 2009 9:34 pm    Post subject: Puzzle VH_057 Reply with quote

Code:
 +-----------------------+
 | 1 . . | 9 . . | . . 3 |
 | . 8 . | . . 6 | . . . |
 | . . 6 | 1 7 . | 9 . . |
 |-------+-------+-------|
 | 5 . 1 | 4 . 7 | 8 . . |
 | . . 8 | . 1 . | 5 . 6 |
 | . 6 . | 8 . 9 | . 1 . |
 |-------+-------+-------|
 | . . 7 | 3 9 . | 6 . . |
 | . . . | . . 2 | . 9 . |
 | 6 . . | . 8 . | . . 1 |
 +-----------------------+

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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Mon Jul 13, 2009 2:05 pm    Post subject: Reply with quote

Still another nice VH puzzle.
Quote:
Ignoring the Type 1 UR, I used
x-wing 2 in r69c37,
xy-wing 34-7 with pivot 34 in r9c8 and a transport,
xy-wing 23-4 with pivot 23 in r4c2 and a transport.

Ted
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gindaani



Joined: 06 Mar 2009
Posts: 79

PostPosted: Mon Jul 13, 2009 9:21 pm    Post subject: Reply with quote

After the basics, I had:
Code:

+---------------+-------+----------------+
| 1    457 45   | 9 2 8 | 47   6    3    |
| 479  8   49   | 5 3 6 | 1    247  247  |
| 23   23  6    | 1 7 4 | 9    58   58   |
+---------------+-------+----------------+
| 5    23  1    | 4 6 7 | 8    23   9    |
| 479  479 8    | 2 1 3 | 5    47   6    |
| 2347 6   234  | 8 5 9 | 2347 1    247  |
+---------------+-------+----------------+
| 248  45  7    | 3 9 1 | 6    2458 2458 |
| 38   1   35   | 6 4 2 | 37   9    578  |
| 6    49  2349 | 7 8 5 | 234  234  1    |
+---------------+-------+----------------+

Play this puzzle online at the Daily Sudoku site

I don't see any Type 1 UR to ignore. Laughing
I used:
Quote:
7 skyscraper
4 x-wing
249 xy-wing

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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Mon Jul 13, 2009 9:32 pm    Post subject: Reply with quote

gindaani wrote:
After the basics, I had:
Code:

+---------------+-------+----------------+
| 1    457 45   | 9 2 8 | 47   6    3    |
| 479  8   49   | 5 3 6 | 1    247  247  |
| 23   23  6    | 1 7 4 | 9    58   58   |
+---------------+-------+----------------+
| 5    23  1    | 4 6 7 | 8    23   9    |
| 479  479 8    | 2 1 3 | 5    47   6    |
| 2347 6   234  | 8 5 9 | 2347 1    247  |
+---------------+-------+----------------+
| 248  45  7    | 3 9 1 | 6    2458 2458 |
| 38   1   35   | 6 4 2 | 37   9    578  |
| 6    49  2349 | 7 8 5 | 234  234  1    |
+---------------+-------+----------------+

Play this puzzle online at the Daily Sudoku site

I don't see any Type 1 UR to ignore. Laughing

If you look in col8, I believe that you will find a naked quad 2347 that deletes the 24 in r7c8 and forms a Type 1 UR 58 in r37c89.

Ted
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