I made a really nice and friendly 3D simulation of the Monty hall problem.
I got inspired by a Monty hall question variation in this community (I can't find it or remember the name).
I also created a nice video that tries to explain the solution which you can find here:
and the simulation for FREE DOWNLOAD here: http://adf.ly/1c8rOR
I worked very hard on this simulation as you can see and would love to hear what you have to say about it :)