Interesting mind-reading game

This is cool. I don't know how it works but it somehow knows what numbers I choose and came out with the correct image.

Zhuang was terrified. She said it's a kind of dark magic. Sounds scary. But I still think it's cool.

For those who are curious try this out. For those who are faint-hearted, please do not try more than twice. lol. (If the dark magic word scares you)

Here you go. This is the site: http://www.gangqin.cn/heart.htm

Have fun!