Before Fei Yi departed, the Shu official Lai Min visited him and asked to play a game of weiqi with him. At the time, all the preparations for battle had been made and the troops were ready to march off. While documents attached with feathers kept coming in, Fei Yi continued playing with Lai Min and seemed deeply engrossed in the game. Lai Min told him: "I was actually testing you! You are a trustworthy person and you will definitely be able to defeat the enemy."