• http://en.wikipedia.org/wiki/Cheating_in_chess

Por acaso, encontrei um relato sobre o uso de fones de ouvido costurados em um boné que permitiram que um jogador recebesse ajuda durante um torneio de xadrez.

“In the Subroto Mukerjee memorial international rating chess tournament 2006, an Indian chess player was banned from playing competitive chess for ten years due to cheating.^[14] During the tournament at Subroto Park, Umakant Sharma was caught receiving instructions from an accomplice using a chess computer via a Bluetooth-enabled device which had been sewn into his cap.^[15][16]”