In total, how many words are there using these particular combinations of letters?From this page of words starting with 'gdi' that contain 'f', you have solely 1 combination which can be selected.
In Scrabble, what is the most points you can get using words starting with 'gdi' that contain 'f'?Given that only 1 result to pick from, you're obliged to use 'gdinfo' scoring 11 points.