20131123 SDK

 1 7 8 | 2 4 9 | 6 3 5
 6 5 4 | 8 1 3 | 7 2 9
 9 2 3 | 5 7 6 | 8 4 1
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 4 8 2 | 3 6 1 | 9 5 7
 3 9 1 | 7 5 2 | 4 8 6
 5 6 7 | 4 9 8 | 3 1 2
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 2 4 9 | 1 8 7 | 5 6 3
 7 1 5 | 6 3 4 | 2 9 8
 8 3 6 | 9 2 5 | 1 7 4

solved it