I see, but still there's a lot of reasonings just for counting the letters. And ridiculous reasonings like:
FedEx"? Five letters? F-E-D-E-X? No, that's six. Wait, FedEx is two syllables: Fed-Ex. Five letters? F-E-D-E-X? That's five letters? F, E, D, E, X. Yes, five letters. FedEx.
Definitely a lot of letter counting. It's not not a factor. I think the real problem is that the search space for each problem is enormous. When it gets stuck, it just gets stuck enumerating candidates that meet some but not all of the constraints.
FedEx"? Five letters? F-E-D-E-X? No, that's six. Wait, FedEx is two syllables: Fed-Ex. Five letters? F-E-D-E-X? That's five letters? F, E, D, E, X. Yes, five letters. FedEx.