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May 19 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 686
Location: Dar es Salaam Tanzania

PostPosted: Fri May 18, 2012 10:55 pm    Post subject: May 19 VH Reply with quote

After the Basics
Code:

+------------+-----------+------------+
| 8   7  2   | 69  5 1   | 4   69 3   |
| 345 6  345 | 89  2 48  | 589 7  1   |
| 9   1  45  | 3   7 468 | 2   -56 58  |
+------------+-----------+------------+
| 7   2  19  | 168 3 5   | 689 4  89  |
| 56  8  19  | 16  4 7   | 3   59 2   |
| 456 3  456 | 2   9 68  | 568 1  7   |
+------------+-----------+------------+
| 2   5  7   | 4   8 9   | 1   3  6   |
| 36  49 36  | 7   1 2   | 59  8  459 |
| 1   49 8   | 5   6 3   | 7   2  49  |
+------------+-----------+------------+
XY-Wing 59 89 58 pivoted in r4c9; r3c8<>5 solves it.
Also Type 1 UR 49in r89c29; r8c9<>49.
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