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Messages posted by Stickywulf
 
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shiro wrote:What is next logical move?



Look at Row 5 Column 9 (R5C9). It must be either 1 or 4. If we pretend that it does equal 4 then we find out quickly that this can't be true. Follow the logical steps below:

Let R5C9 = 4
Then R4C8=1
Then R7C8=9
Then R7C2=1
Then R5C2=4 .... but R5C2 can't equal 4 since we let R5C9 equal 4.

Therefore R5C9 can't be 4, and so R5C9=1

I think this might be known as a "jellyfish" if you want to Google more information.
Instead of tapping the button you must hold it down.
 
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