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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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 Posted: Fri Aug 16, 2013 10:17 pm Post subject: Aug 17 VH |
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| Code: |
+-------------+-----------+-----------+
| 249 2347 6 | 27 1 5 | 39 27 8 |
| 1 237 79 | 8 6 4 | 39 5 27 |
| 5 27 8 | 3 27 9 | 1 6 4 |
+-------------+-----------+-----------+
| 8 247 79 | 12 24 6 | 5 3 19 |
| 24 5 1 | 9 3 8 | 6 247 27 |
| 249 6 3 | 5 247 17 | *48 2-48 19 |
+-------------+-----------+-----------+
| 3 8 4 | 6 9 2 | 7 1 5 |
| 6 9 2 | 17 5 17 | *48 *48 3 |
| 7 1 5 | 4 8 3 | 2 9 6 |
+-------------+-----------+-----------+
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Type 1 UR 48 in r68c78; r6c8=2; stte. |
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roaa
Joined: 18 Apr 2009
Posts: 112
Location: Sweden
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| Posted: Sat Aug 17, 2013 7:39 am Post subject: |
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| An xy-wing 247 forces r3c2=2, which solves it. |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Sat Aug 17, 2013 7:55 am Post subject: 17 Aug VH |
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| Code: |
+------------+-----------+-----------+
| 49 34 6 | 27 1 5 | 39 27 8 |
| 1 237 79 | 8 6 4 | 39 5 27 |
| 5 27 8 | 3 27 9 | 1 6 4 |
+------------+-----------+-----------+
| 8 47 79 | 12 24 6 | 5 3 19 |
| 24 5 1 | 9 3 8 | 6 247 27 |
| 249 6 3 | 5 247 17 | 48 248 19 |
+------------+-----------+-----------+
| 3 8 4 | 6 9 2 | 7 1 5 |
| 6 9 2 | 17 5 17 | 48 48 3 |
| 7 1 5 | 4 8 3 | 2 9 6 |
+------------+-----------+-----------+
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Play this puzzle online at the Daily Sudoku site
A few extra basics to show Roaa's 'double' XY solution. |
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