So I was playing Rock, Paper, Scissors with my daughter the other day. (It was her idea; I didn’t tell her about the game, my previous blog post about Rock, Paper, Scissors, nor about the new rpsmatch.com site). She won, and I lost a few rounds. Then I noticed: she wasn’t using “Paper”!
So I thought of this variation on the game: one player is not allowed to use one of the weapons. All other rules stay the same.
To make it more interesting, the other player would not know which weapon is not allowed. How to do that? The handicapped player chooses one card from 3, each card showing a different weapon. The player is not allowed to use that weapon. Only after the winner is determined is the card shown to the other player for verification. If the handicapped player cheated by using the forbidden weapon, then they lost!
I doubt this change gives the non-handicapped player an advantage. But you never know. The number of draws should decrease, though. Then again, maybe not. Would be nice to figure it out (mathematically)!
The game for three players is played like the original version, with this order
Lizard beats Scissors
Scissors beats Paper
Paper beats Rock
Rock beats Lizard
Count to three, and on three, each player chooses one of the weapons with their hand.
How to determine the winner with the extra weapon?
What you do is look at the sequence of weapons chosen. For example, here
Player Blue: Lizard, Player Yellow: Scissors, Player Purple: Paper
Player Blue chose Lizard, Player Yellow chose Scissors, and Player Purple chose Paper. Lizard beats Scissors, Scissors beats Paper. So you would say Player Blue, who chose Lizard, won, right?
What to do when two players choose the same weapon? Let’s say like this:
Player Blue and Player Yellow: Scissors, Player Purple: Paper
Both Player Blue and Player Yellow chose Scissors, Player Purple chose Paper. Scissors beats Paper. There are two winners, so now Player Blue and Player Yellow play a round of 2-player Rock-Paper-Scissors to determine the winner.
Let’s look at this case,
Player Blue and Player Purple: Paper, Player Yellow: Scissors
both Player Blue and Player Purple chose Paper, and Player Yellow chose Scissors. Scissors beats Paper, so Player Yellow won. No need for a 2-player round.
Obviously, if all players choose the same weapon, then it is a draw, and the game starts from the top.
Two different versions of this game
Now we come to a case that has no equivalent in the 2-player version:
Player Blue and Player Yellow: Lizard, Player Purple: Paper
Two player chose the same weapon, and the other player chose a weapon that neither beats the other weapon directly, or is beaten by it. (They are opposite in the circle).
Here I see two options. Either this is declared a draw, or the player who chose the single weapon is declared the winner. I think time will tell which is the better choice.
I’ll try to explain the advantage of adding another weapon in a separate post. Stay tuned!
Thanks go to my friends Sara and Gerry who played this game with me yesterday. Sara won.
Put a website together that allows you to play the game over the Internet: rpsmatch.com. You can either play with one (standard “Rock, Paper, Scissors”), or two other players (“Rock, Paper, Scissors, Lizard”). Operated by my company, The Buckmaster Institute, Inc.
// This probably still needs some editing, will keep updating //