How to Play Blind Soccer

Blind soccer was developed in Spain in the 1920s. The rules are complicated, but they permit a spirited game with demanding challenges for athletes.

All of the players are blindfolded, except for the goalies and, for each time, a guide who stands behind the opposing team's goal and shouts suggestions to the players. The ball makes a sound when it moves and players have to say "voy", which is Spanish for "go" when moving toward the ball (or where they think the ball is).

It would be interesting to see similar adaptive versions for other sports, such as stock car racing, paintball, and field hockey.

-via Amusing Planet