Story

From the Scrabble Rules:

1 Point - A, E, I, L, N, O, R, S, T and U.
4 Points - F, H, V, W and Y.
8 Points - J and X.
Blank tiles have no point value.

So he got 1 extra point for the extra vowel. Sucks that he didn't have a real Y, as the blank as a Y is still worth no points.

One of the things I don't like about scrabble is that it doesn't reward fancy words (like "CHLORODYNE") but instead rewards placement of rare letters on special tiles. So you can place 10 character fancy words all night and still get beat by someone placing "OX", where the X is on a tripple letter score square.