Rock, paper, scissors

Pratyay Agrawal


Screenshot 2020-04-26 at 3 04 51 PM

The table above displays all the possible outcomes in a game of rock, paper, scissors. Out of all possible 9 combinations, three result in a draw, so draws happen a third of the time. This indicates that the other 2/3rd of the time, there is a winner.

We can use psychology and mathematical probability game theory to find the predicted outcome of rock, paper, scissors played between two players.

We use three psychological assumptions after the first turn is over:

So, based on the conditions above, after the first game, the loser should go backwards, or use the third object which wasn’t used in the first turn. For example, Player A takes rock and Player B takes Scissors in the first turn, Player B should choose Paper in the second turn as Player A is most likely to choose rock again. Hope you liked reading this article and use this trick with the person next to you right now!

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