Two Chess Masters have a duel of wits
Having The Chessmaster as your main character may be awesome, but it has its downsides like him easily becoming a Mary Tzu due to no enemies. Rule of Drama means that such a character must have a rival who is as awesome, or even better. The two must then fight. Usually, this causes a Serial Escalation of Crowning Moments of Awesome. May result in Xanatos Speed Chess and a Gambit Pileup.