I did this competition in college, and I was obsessed! This post brings up a lot of nostalgia for me. I partnered with my EE friends, and I built the software. I devised my implementation of the flood-fill by writing VB scripts in excel spreadsheets. I would draw out the maze in the spreadsheet by coloring the cells, then I would use VBA to navigate the maze and color in the solution.

Of course, the final implementation was written in C and loaded on a microcontroller. Back in those days my options were much more limited. I can only imagine what's available these days.

I actually had the itch to tinker with micromouse again not too long ago, but I became dismayed with the difficulty in setting up a physical maze for the robot. I think access to the mazes themselves is the biggest limiting factor.