@Eminybob
"But yesterday was a 6, as I guessed all the other bloody ight words before light!"
In a situation like this where it can be Light,Tight, Fight, Right, Sight etc, you're better off trying to come up with a word from as many as possible of the missing letter choices, ie L,T,F,R,S. eg FIRST.
(That's assuming you have more than one row left to fill, otherwise you have to guess one of the ?ight words)