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Dec 9 VH

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Clement

Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

Posted: Sun Dec 08, 2013 10:20 pm Post subject: Dec 9 VH

Code:

+-------------+------------+----------+
| 235 1 2347 | 247 57 9 | 34 6 8 |
| 35 47 8 | 147 567 46 | 134 9 2 |
| 6 9 *24 | 124 8 3 | 145 7 #45 |
+-------------+------------+----------+
| 9 8 56 | 3 4 7 | 56 2 1 |
| 7 3 46 | 5 2 1 | 46 8 9 |
| 1 *24 45-2 | 6 9 8 | 7 3 #45 |
+-------------+------------+----------+
| 23 27 237 | 9 1 5 | 8 4 6 |
| 8 5 9 | 47 367 46 | 2 1 37 |
| 4 6 1 | 8 37 2 | 9 5 37 |
+-------------+------------+----------+

W-Wing 24 in BOX 14 with SL 4 in col 9; r6c3<>2; stte.

hughwill

Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

Posted: Sun Dec 08, 2013 11:39 pm Post subject: Dec 9 VH

After basics:

Code:

+------------+------------+-----------+
| 235 1 37 | 247 57 9 | 345 6 8 |
| 35 47 8 | 147 567 46 | 1345 9 2 |
| 6 9 24 | 124 8 3 | 145 7 45 |
+------------+------------+-----------+
| 9 8 56 | 3 4 7 | 56 2 1 |
| 7 3 46 | 5 2 1 | 46 8 9 |
| 1 24 245 | 6 9 8 | 7 3 45 |
+------------+------------+-----------+
| 23 27 37 | 9 1 5 | 8 4 6 |
| 8 5 9 | 47 367 46 | 2 1 37 |
| 4 6 1 | 8 37 2 | 9 5 37 |
+------------+------------+-----------+

Play this puzzle online at the Daily Sudoku site

The hidden pair 37 in c3 allows for a 357 XY-Wing 1 step solution
in r12.

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Mon Dec 09, 2013 5:03 am Post subject:

I couldn't find any of the standard VH moves, such as your XY-Wing. Now I know why; I screwed up the basics.

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