Pull Request now includes Tetris!

completed: warmups
tower of Hanoi (with saving via YAML)
Mastermind(no saving, but yes AI)

Single block Tetris, with high scores saved, plus a difficulty setting as well. (Boring under about level 8).
This right here is super memory intensive if you have a huge dictionary.  It's opening the entire file and copying every line into an array.  You could just look directly at the file line instead of pushing it to the array at all