4 of Diamonds

4 of Diamonds

Players:An
Additional Players: Taketo Serizawa
Player Limit: None
Time Limit: Until the water reaches the electrical wires

Rules

  • Once all players enter the room, it begins to fill with water. Dangling from the ceiling are 4 severed electrical wires
  • In the room there is one light-bulb and a door to an adjacent room where there are three switches
  • There is one switch that connects to the light-bulb
  • With the door closed, players may flip any switch. While the door is open, players may only flip the switch once
  • The door will not close if there are people in both rooms or a switch is flipped
  • It is GAME CLEAR if players can unanimously answer which switch turns on the light
  • If the water level rises and the surface of the water touches the high current lines, it's GAME OVER

Solution

The solution is surprisingly simple. Close the door, and flip switch A on for until the water is just a few inch sea from the wires. Turn the switch off, immediately open the door, and flip switch B. If it doesn't turn on, it's not switch B. Then feel the light bulb. If it's hot, the answer is A. If not, then it's C. This can be done in any order with any switch.