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June 20 DB

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Sat Jun 20, 2009 1:30 pm    Post subject: June 20 DB Reply with quote
The June 20 DB has a simple solution, or a number of complex ones.

Solutions: Bug+1, or a variety oif xy-chains will do it.


Earl


Code:

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

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