Leap Frog IQ Test
Here’s a fun little puzzle called the Leap Frog IQ Test. Supposedly, this test is given to second grade children in China, and should be solvable in 3 minutes by someone with an IQ above 50. I’m not sure about that, but I did have fun solving it.
It’s an interactive Flash-based puzzle, but I’ll explain how it works just for edification. You start with green frogs on the left and brown frogs on the right. The goal is to perform a switcheroo of green and brown frogs. The rules are:
- Green frogs can only move to the right and brown frogs to the left.
- Only one frog is allowed on a rock at a time.
- A frog can move to the open rock or jump over one other frog to reach it.
It reminds me a little bit of the Tower of Hanoi puzzle. I’m not sure if the Frog puzzle is also recursive, but my solution is algorithmic with two steps.