Under the training of the White King, Hei Anjing, and the Black King, Ye Xiajie, their two students, Yun Luan and An Zhe, were taught to memorize all sequences they had shown them. They were trained to remember what they saw and were taught to do it until they could remember the sequence pattern just by seeing it alone. This way, they would be able to somehow predict all possible moves coming after the first move. Among the two, Yun Luan learned well; on the other hand, An Zhe learned the hard way. It was for him to instinctively get the move. Though it wasn't one hundred percent perfect like when Yun Luan does it.