Diving chess
Diving chess is a sport in which chess is played underwater. It was invented by Etan Ilfeld; and, since 2013, it has been included as one of the disciplines in the annual Mind Sports Olympiad.
Diving chess is a sport in which chess is played underwater. It was invented by Etan Ilfeld; and, since 2013, it has been included as one of the disciplines in the annual Mind Sports Olympiad.