# Why do people collect bells and whistles

## Schnick, Schnack, Schnuck - that's how you win

Whoever plays "Schnick, Schnack, Schnuck" or "Schere, Stein, Papier", as the decision-making aid is also called, presumably assumes that only luck helps to win. Computer scientists at the Chinese Zhejiang University have found out which tricks you can use to gain a statistically significant advantage - that is, usually win. And so are the winning rules

### 1. "Schnick, Schnack, Schnuck" rule

If your opponent is a “real guy”, choose “paper”. Because men like to choose the hard "stone" - which is then wrapped up by the "paper" and defeated.

### 2. "Schnick, Schnack, Schnuck" rule

Winners usually stay with the same symbol, losers change it. So you often switch to "stone" if he won the previous round. And when one symbol loses, losers often choose another. "Professionals" are less changeable.

### 3. "Schnick, Schnack, Schnuck" rule

Beginners are reluctant to use the same sign more than twice. This means that if a casual player has chosen “stone” more than twice in a row, the experienced player can be almost certain that his opponent will choose “paper” or “scissors” on the next round. And if the layman lost the last time (to “paper”), he will probably choose “scissors” according to rule no. 2 - against which the professional wins with “stone”.

### 4. "Schnick, Schnack, Schnuck" rule

A UK team discovered a fourth rule: make your pick, then play with your eyes closed. This is how you make sure that your opponent does not influence you. Because certain movements of the other person are enough to dissuade us from our actual choice. Protected against such manipulation by your opponent, you derive a small statistical advantage from it.

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