Monty Hall Problem Simulator

• The goal of this game is to choose the winning door from three available doors. Behind the winning door is a new car, and behind the other two doors are goats.
• First, the player must choose one of the three doors.
• Next, the game show host will reveal a goat from behind one of the other two doors (the host always knows where the car is and will never reveal it).
• Lastly, the player can either open the door they chose first, or they can switch to the other closed door. If the door they open reveals a new car, the player wins!

Despite being very simple at its core, the Monty Hall problem is an oddly confusing probability puzzle that has confounded people for decades, including some otherwise really smart folks who simply don't believe the counterintuitive results.

Here, you can play an interactive, simulated version of the Monty Hall problem (loosely based on the original version of Let's Make a Deal) as many times as you want to try to figure out which strategy works best (and more important, why it works – even though it seems like it shouldn't).