Four players are selected, two are then blindfolded. The other two are guides. They then attempt to play a game of pool (either 8 or 9 ball). Their guides have to direct them to the cue ball, tell them where to hit it, how hard and any other information needed to play a shot. They can"t help them physically with the actual shot though. The game has to be played as normal, following all rules. The team who pot the either the 8 or 9 ball legally are the winners. All players can then swap or the loosing team has to stay on the table.
Source: From the original site.