He-Man and the Masters of the Universe (1983)

S2E4 The Gamesman

Lord Todd, a chess master from a distant land, arrives at Palace Eternia and quickly captivates the Royal Family with his delightful gifts and exceptional chess abilities. In gratitude for King Randor's hospitality, he invites Teela to visit his home, Castle Star. The pair sets off for their adventure. Meanwhile, Man-At-Arms receives an urgent summons from The Sorceress at Grayskull, who reveals that a formidable evil has crossed over to Eternia from another dimension—and its stronghold is none other than Castle Star...