Four River Puzzle Game

I would like to introduce a new puzzle game. It uses Mahjong characters but the puzzle is much much simpler.

Please go to this website (I don't think your office network is blocking this)

http://puzzles.about.com/library/java/blfourrivers.htm

How to play the puzzle (quoting from the web)

In this strategy puzzle, the challenge is to identify identical tiles which can be paired and thus removed. In order to qualify, the corresponding tiles must be able to be connected by a path which changes direction no more than twice with no intervening tiles to block the way. It's a race against the clock. Less than 4 minutes is average. Less than 3 minutes is good and anything under two minutes is exceptional. There's also a hint feature if you get stuck.

My latest best time is 1.02. But the current world's record is 0.43. What will yours be??? This is my evidence yea...

Since I've nothing better to do, I might as well show you how to play the game:

Step 1

Step 2

Step 3

A picture is worth a thousand word. Hopefully the pictures above are capable to serve as a guide.