Crack This Code

[AceInfinity]

Actually, "allot" is in the English dictionary, so it is a real word.

Also, glad you got it. Even though I practically gave the answer away on TLF, I think, lol.

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Reading up about it, it's still grammatically incorrect.

1.
To divide or distribute by share or portion; distribute or parcel out; apportion: to allot the available farmland among the settlers.
2.
To appropriate for a special purpose: to allot money for a park.
3.
To assign as a portion; set apart; dedicate.

Yes I know, allot is to allot an amount to something usually, so it's not the same "a lot" you're thinking about. Even so, you'll find words that never were accepted before, but are now accepted into the english language and changed up because of the way we use words improperly anyway.

"F*ck" for example, it used to be a word only for what it was originally meant to mean.

"Learnt" is another. People's laziness with slang and the way of pronouncing "Learned" had made "Learnt" an accepted variation. (On that note it still comes up with a red underlined error in my Firefox intellisense-like realtime lookup for grammar)

Let's not get off topic now though, so back to the challenge, I actually just typed the word Playfair in google and after a few results I found what I was looking for with the tables and all that, which I organized the letters into.