Since his father had told him that Caleb was unbeatable at chess and that he wanted to get Caleb's attention, he asked him to give him 3 tries to beat him.
Caleb had accepted, sure to win this bet, and he had even told him that if he lost he would find him another fighter to train him and that they would only meet again during missions in a strictly professional context.
Kelan had naturally accepted his stupid terms and Caleb had experienced for the first time the determination of the men of the Lan family.
Kelan had a brilliant mind and following his father's advice in addition to his physical training he had also developed his intellectual faculties.
He had let Caleb win the first two games to observe his playing style and then he had crushed him in the third game.
Caleb was so surprised to be beaten that he had asked him to play another game, but he had lost again and that's how their ambiguous relationship began.