as if game chess weren't challenging enough imagine playing at the bottom of a swimming pool. some of the worlds top chess players recently did that an event is South Africa diving chess a hybrid sport created in 2021 is played underwater on a weighted magnetic chessboard players take diving down to make their then resurfacing for air while their opponent moves chess grandmaster hand niemann won the thouament to become the first american frestyle diving chess champion. from book called the week junior