Rock-paper-scissors Bo5
The first named player (upper in the bracket) goes to the seat of the second player.
Set up and agree an ecognizable audible tone (for example: 1-2-3, Rock-paper-scissors or Schere Stein Papier, ...) with your opponent
Rock: wins against scissors, loses to paper and stalemates against itself
Paper wins against Rock, loses to scissors and stalemates against itself
Scissors wins against paper, loses to rock and stalemates against itself
Full rulebook:
http://worldrps.com/game-basics/the-official-rules-of-rock-paper-scissors/