四阶魔方教程视频:

1：//v.youku.com/v_show/id_XMzE1MzAwMjIw.html
2：//v.youku.com/v_show/id_XMzA4NDY4NzMy.html

3：//v.youku.com/v_show/id_XMzA4NDc0NDM2.html

4：//v.youku.com/v_show/id_XMzA4NDg0NDg0.html
5 ：//v.youku.com/v_show/id_XMzA4NTA1OTQ0.html

5-1：//v.youku.com/v_show/id_XMzA4NTA1OTQ0.html

5-2：//v.youku.com/v_show/id_XMzA4NDk5NjI0.html
6：//v.youku.com/v_show/id_XMzA4NTEyNDEy.html