It wasn't very difficult for Zero to understand how the game of chess worked. In fact, he had some practice playing it with his mindscape assistants. Mii and Wii proved to be tough competition combined. The sisters were able to calculate in advance the moves Zero would make and create strategies to counter Zero's moves. It frustrated the teen a lot how they were always steps ahead of him.
While Zero physically slept, he was kept busy in the mindscape playing chess and several other strategy games with his assistants. For some odd reason, Zero thought it was a brilliant idea to play with both Mii and Wii at the same time. The sisters thought that Zero had lost his mind in a high-speed game with Wii based on accumulated experiences and a careful approach with Mii who was constantly baiting Zero. The stress Zero felt was incomparable to the kind of training Merlin and Hua Tuo subjected him to.
