Junior Frogs
This challenge is based on the game Frogs which you
may have seen before.
There are two green frogs and two brown toads:
A frog or toad can jump over one other creature onto an empty
lilypad or it can slide onto an empty lilypad which is immediately
next to it.
Only one creature, at a time, is allowed on each lilypad.
Now the idea is for the frogs and toads to change places. So,
the frogs will end up on the side where the toads started and
the toads will end up where the frogs began.
The challenge is to do this in as few slides and jumps as
possible.
You could use the interactivity below to help you try out your
ideas.
To move a frog or toad, click on it. If it is not able to
jump or slide, it won't move. The toads and frogs in the
interactivity only move in the direction they are facing.
This button 
takes you back
to the start.
This button
takes you back one step at
a time.
This 
keeps a record for you - you may
also be interested in the grand total of all four parts added
together.
Full screen
version
This text is usually replaced by the Flash movie.
How do you know you have found the smallest possible number of
slides and jumps?
Why not try three frogs and three toads?
What is the smallest number of slides and jumps now?