Fifteen Puzzle

Blog Feeds: RSS Feed RSS | Atom
Weekly Performance Display
for user on task
All time best single score/min =
All time best single score/move =
Note: Dates are end-of-week (Saturday)

Grand total time in task =
Creating graph
Graph: Ave Score per Minute for Week

15 Puzzle

Many of us remember playing with small plastic versions of the 15 Puzzle when we were young. The puzzle was invented in upstate New York in 1880 and caused a craze in both the US and Europe. Many people work out techniques for systematically solving the puzzle. Here in the Brain Gym, the goal is to solve it as fast as possible with as few moves as possible. Even when you have worked out techniques for getting to the solution, that takes concentration that builds up mental muscle.

Top Scores
Site Map
Amazon Picks:
Support Strong Brain:
Shop at Amazon
Click Here
Wait Wait Wait Wait