Almost impossible

Too easy, should have had some red herrings.

And correct me if I'm wrong, but doesn't pi include all sequences of digits?

JamesD, I only wish one could upvote comments on this, because that is an inspired remark

This is a "How clever am I" question!.. and is total pants

Not exactly in keeping with the game.
I say 'not exactly' - I mean it's utter bollocks.

To be fair, there are other similar grids.

I don't think some of this criticism is fair. It certainly isn't a general knowledge- based grid but then nor is one based on Pokémon or a dozen other subjects which appear from time to time, and at least if you are not comfortable with numbers you can get out in a few seconds rather than puzzle for three minutes to find you had 0% chance.

Agree with you ,toast!Belated happy new year!