A 4 card trick.

Can you shuffle the options and come out on top?

This famous reasoning problem was actually part of a psychological experiment called the Wason selection task. Let’s see if you can crack wassup with Wason.

The game;

Imagine four cards lying on a table.
Each card has a number on one side and a colour on the other.
The sides you can see show: 3, 8, Red, and Yellow.

The Rule;

You are given a rule to test:

“If a card shows an even number on one side, then the other side must be red.”

The Puzzle;

Which card or cards do you need to turn over to check whether this rule is being followed?