From the article: The original problem: >The host acts as noted in the specific version of the problem. >Switching wins the car two-thirds of the time. The

From the article: The original problem: >The host acts as noted in the specific version of the problem. >Switching wins the car two-thirds of the time. The random door pick: >"Monty Fall" or "Ignorant Monty": The host does not know what lies behind the doors, and opens one at random that happens not to reveal the car. >Switching wins the car half of the time.