This reminds me of the anime Hikaru no Go. In one episode, prodigy named Touya Akira (the main rival of the main character) is being bullied by his schoolmates. They challenge him to a 3-board match (he has to play three games simultaneously, each against a different person) with his eyes closed. Because of his reputation, he accepts the challenge. He calls out his moves and the opposing player places the stone. The opposing players also call out their own moves so that Akira can know what's happening in each of the games. he has to construct and track what the three boards look like constantly using only his memory. The one game of the three where he starts losing is the one where the opposing player is the least experienced. It's not the skill that starts defeating Akira. Rather, it's the idiocy of the amateur who doesn't know what he's doing, making it more difficult for Akira to track what the game actually looks like, because it's harder to remember and track nonsensical moves.