Try to build six color China Towers.
You should be smart and skillful.
Every tower has 7 floors (bricks).
Initially all bricks are shuffled randomly.
Ok, move bricks using 2 rules.
Rule 1. Move any brick to empty space.
Rule 2. Put small brick to large brick of the same color, but you can not put large brick to small brick or to brick of another color.
The best results and names are collected on the site iphone.bashni.org.
The best smart players are Taiwan, China, USA, Russia, Japan and Germany people.
There are 33 puzzles corresponded 33 biggest China and Taiwan cities. Try to solve optimal these puzzle and take highest IQ in the Earth.
Also you will know about large China cities, population and Chinese letters.