I had an interview through a headhunter for a contract position. They were quick to respond, and overall, the experience was good.

I didn't get the position, and I think my lack of experience was a contributing factor. They required 3+ years of experience, which I do not quite have yet.

Given a grid of letters, find every possible combination of letters. Then, pass each combination to a given function that checks to see if it is a real word. You cannot repeat letters, and the letters in the word must be adjacent to each other.

For example, if you start at row 1, column 1, the only letters that can be next are (1,2), (2,1), and (2,2).