Originally Posted by Hessah
|
ok! you lost me here
My Middle Box
How did you derive that the middle column, 4th row cannot be a 5?
|
I checked my piece of scribble paper. Evidently, when I was going through for that box, I typed "1, 4, 5, 6, 8, and 9" for the post, but on paper I forgot the 8. That explains how I mistakenly calculated it...
Aha, that is firsthand proof of how badly people mess up when they're tired.