Well, yes, agreed. I wondered how Ifor might have made the reference a bit more indirect eg to the individual's initials or name that could have been incorporated in the grid as ringed or highlighted cells?
To be honest I'm glad he didn't as grid staring and word bashing are not good for my eyes or sanity. I tried it with this before doing what you suggest below and got nowhere!
And yes, many thanks Ifor, really enjoyed it....