Henriette finds a wildcard and wins

Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.

Henriette puts an H in E4, then an H in C3. This square turns out to be a wildcard, giving her the chance to place another piece. She chooses to place another H in D1. At the end of the game, she has three pieces on the grid, earning joint first place and 5 points.

(Written by Karl Craven)