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This thread is aimed at those needing a little help. As this week's puzzle is a numerical one, I can't say the usual bit about 'struggling with a clue'. I don't do the numerical puzzles, so have no idea about how easy it is to help, give answers.

PS I hope the numerical lovers enjoy this!

Posted in the No Answer thread by Mathprofrockstar

In case you don't want to search, here are the only four-digit Fibonacci numbers:

1597, 2584, 4181, 6765

One helpful observation:

Entries that are symmetrically opposite (e.g. A & P, B & O), etc. must obey:

a) if they have an even number of digits, they have opposite parity - one is odd and the other is even

b) if they have an odd number of digits, they have the same parity (both odd or both even)