Rock-paper-scissors-lizard-Spock: Difference between revisions

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	] of rock-paper-scissors-lizard-Spock. Rows represent available choices for player 1, columns those for player 2. Numbers in cells show utility (payoff) for player 1, player 2.]]
	'''Rock-paper-scissors-lizard-Spock''' is an expansion of the classic selection method game ]. It operates on the same basic principle, but includes two additional weapons: the ] (formed by the hand as a sock-puppet-like mouth) and ]<ref>{{cite news \|url=http://www.timesonline.co.uk/tol/comment/leading_article/article1080425.ece \|archiveurl=https://web.archive.org/web/20100531231332/http://www.timesonline.co.uk/tol/comment/leading_article/article1080425.ece \|archivedate=May 31, 2010 \|title=... and paper scissors \|work=The Times \|date=June 11, 2005 \|accessdate=2010-11-04}}</ref> (formed by the '']'' ]). This reduces the chances of a round ending in a tie (from 1/3 to 1/5). The game was invented by Sam Kass with Karen Bryla, as "Rock Paper Scissors Spock Lizard".<ref name=kass>{{cite web \|url=http://www.samkass.com/theories/RPSSL.html \|title=Rock Paper Scissors Spock Lizard \|publisher=Sam Kass \|accessdate=2010-11-04}}</ref>{{npsn\|date=April 2014}}

	The game was mentioned in four episodes of '']''. According to an interview with Kass, the series producers did not ask for permission to use the game, but he was later referenced in the episode "]" from the ], for which he thanked them on his website.<ref>{{cite web \|title=The True Story behind RPS, Lizard, Spock \|url=http://h30565.www3.hp.com/t5/Feature-Articles/The-Real-Story-and-Some-of-the-Math-Behind-the-Famous-Rock-Paper/ba-p/3551 \|archiveurl=http://web.archive.org/web/20120519182326/http://h30565.www3.hp.com/t5/Feature-Articles/The-Real-Story-and-Some-of-the-Math-Behind-the-Famous-Rock-Paper/ba-p/3551 \|archivedate=May 19, 2012 \|accessdate=January 10, 2014}}</ref>{{self-published-inline\|date=April 2014}}<ref name=kass/>

	==Rules==
	Each player picks a hand-shape, then all players reveal their choices at the same time. The winner is the one who defeats the others. The rules of rock-paper-scissors-lizard-Spock are:
	*Scissors cut<!-- Although concerned with a single instance of scissors, dictionaries confirm that 'scissors' is a plural noun so should always carry a plural verb --> Paper
	*Paper covers Rock
	*Rock crushes Lizard
	*Lizard poisons Spock
	*Spock smashes Scissors<!-- For source info see Talk: Spock "Smashes" Scissors -->
	*Scissors decapitate<!-- Although concerned with a single instance of scissors, dictionaries confirm that 'scissors' is a plural noun so should always carry a plural verb --> Lizard
	*Lizard eats Paper
	*Paper disproves Spock
	*Spock vaporizes Rock
	*Rock crushes Scissors

	There are fifteen<!-- this figure includes ties and so cannot be changed to ten. --> possible pairings of the five gestures (including ties). Each gesture beats two of the other gestures and is beaten by the remaining two. In a tie, the process is repeated until a winner is found. The original rules (rock beats scissors, scissors beats paper, paper beats rock) remain the same.

	==Guinness Book of World Records==
	The current ] for largest tournament of rock-paper-scissors was completed using rock-paper-scissors-lizard-Spock.<ref>{{cite web\|title=OOMBA SOFTWARE HELPS GEN CON ATTENDEES BREAK LARGEST ROCK, PAPER, SCISSORS TOURNAMENT RECORD\|url=http://www.guinnessworldrecords.com/set-a-record/record-services-for-corporates/news/2014/9/oomba-software-helps-gen-con-attendees-break-largest-rock-paper-scissors-tournament-record-60279/\|website=http://www.guinnessworldrecords.com/\|accessdate=7 October 2014}}</ref> The tournament contained 2,950 participants and was achieved by ], Inc. (USA) at ] 2014 in Indianapolis, Indiana, USA, on 17 August 2014.<ref>http://www.guinnessworldrecords.com.au/world-records/3000/largest-tournament-of-rock-paper-scissors</ref>

	==References==
	{{reflist}}

	{{The Big Bang Theory}}

	{{DEFAULTSORT:Rock-Paper-Scissors-Lizard-Spock}}
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Revision as of 16:56, 28 November 2014

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Rock-paper-scissors#Additional weapons