What's the highest scoring word you can play in Scrabble ?Given that there a small number of words available, you're forced to go with 'tirribi' scoring 9 points.
How many words can you make using this combination of letters?From this page of words starting with 'tir' that contain 'b', you have 2 entries that are available in total.
How many characters are in the biggest word on this list?'tirribi'.