Use of Boltzmann machines

Hi! I would like to try to code a Boltzmann machine and try it out on some example. Buut as I google I cannot find much examples of uses of Boltzmann machines (I always found only the restricted one). The only problem I found was travelling salesman. Can you give me some more examples of problems where Boltzmann machines can be applied?

Thank you! (also sorry if my english is not perfect)