Winning Strategy for Rock-Paper-Scissors Unfolded
Rock-paper-scissors is a hand game that has its existence for about 2,000 years. Despite being around for such a long time, there is no clear strategy to win the game.
A team of Chinese researchers might be of some help as they have observed players changing or keeping the strategies in the game. And, on the basis of the observation, researchers have found a basic rule that could be exploited.
An experiment was carried out having 360 students by researchers from Zhejiang University in China. The total was divided into sub-groups and was made them play 300 rounds of rock-paper-scissors in random pairings. After winning a round, the team received some amount of money.
This made the researchers to observe how the players used the three play options as they won or lost. The researchers noticed, "If a player wins over her opponent in one play, her probability of repeating the same action in the next play is considerably higher than her probabilities of shifting actions".
Another pattern noticed by researchers was if players lose one, two or more times, they are more likely to change the pattern of playing game. They will shift to the pattern of the game for defeating the one who has beaten them in the last game.
To cite an example, if player A has lost by playing scissors to player B's rock, the former player would use paper to beat player's B rock. But player B would keep playing the hand that has been winning. This approach is known as 'win-stay, lose-shift' strategy by researchers. So, now you know how to turn out as a winner in the game.
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