Thursday 19 January 2012

Row 6

Now, we'll follow the same procedure for the 7s.


Again, we have only one possible placement fo the 7 in blocks 3 and 4.
Now we can safely enter those numbers and remove any 7s from the corresponding rows or columns.
And that leaves only one possibility for the 7 in block 6. And it also nails down the 8 in block 3! Now, we're making progress.

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