Bubblecar said:

The Rev Dodgson said:

Bubblecar said:

If Amy has B, Bob has T, Carol has A and Doug has I, Doug wouldn’t know whether it was BAIT or RIGS.

If Amy has G, Bob has R, Carol has S and Doug has I, Doug wouldn’t know whether it was BAIT or RIGS.

That’s how we know Doug didn’t get I.

So what did Bob get, in your scheme?

I was just reviewing that, and I think there may be a fatal flaw in my reasoning.

I’ll have to come back to it later though.

I’ll discuss it with the dog on his walk this afternoon.