D asked:
When I first started on the easy and medium puzzles. I was almost sure that there was always at least one number that you could be sure of that you were adding to the puzzle. I liked it that way. Now that I’m getting into the harder ones, I”m finding there aren’t any that I can be sure of after the first few. There are so few numbers and there’s no ones that I can be sure of where they go.
What am I supposed to do? I mean are there other strategies. Trial and error of numbers when there are hardly any just seems troublesome and like a waste.
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