> For the complete documentation index, see [llms.txt](https://eduapps.gitbook.io/python-intro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://eduapps.gitbook.io/python-intro/6.-exercise-paper-scissors-stone-game.md).

# 6. Exercise: Paper, Scissors, Stone game

Let's use what we have learn so far to build a simple game: Paper, Scissors, Stone.

First, we want to map out the logic of the game, which will help us build a series of `if...elsif...` statements. There can only be finite number of results, as shown below:

| Human (you) | Computer | Result   |
| ----------- | -------- | -------- |
| Paper       | Scissors | You lose |
| Paper       | Stone    | You win  |
| Paper       | Paper    | Draw     |
| Scissors    | Paper    | You win  |
| Scissors    | Stone    | You lose |
| Scissors    | Scissors | Draw     |
| Stone       | Scissors | You win  |
| Stone       | Paper    | You lose |
| Stone       | Stone    | Draw     |

Now, we are ready to capture the above logic into a series of `if...elsif...` statements:

```python
if human== "paper" and computer  == "scissors":
  print("You lose")
elif human== "paper" and computer == "stone":
  print("You win")
elif human== "paper" and computer == "paper":
  print("Draw")
elif human== "scissors" and computer == "paper":
  print("You win")
elif human== "scissors" and computer == "stone":
  print("You lose")
elif human== "scissors" and computer == "scissors":
  print("Draw")
elif human== "stone" and computer == "scissors":
  print("You win")
elif human== "stone" and computer == "paper":
  print("You lose")
elif human== "stone" and computer == "stone":
  print("Draw")
```

You can also add a user input using `input()` function, randomized the computer choice using `random.randin()` function, as well as adding an `else` "end all" condition to improve the game:

```python
import random

human = input("Your choice? ")

comp = random.randint(1,3)
if comp==1:
  computer = "paper"
elif comp==2:
  computer = "scissors"
elif comp==3:
  computer = "stone"
print("Computer choice: " + computer)

if human== "paper" and computer  == "scissors":
  print("You lose")
elif human== "paper" and computer == "stone":
  print("You win")
elif human== "paper" and computer == "paper":
  print("Draw")
elif human== "scissors" and computer == "paper":
  print("You win")
elif human== "scissors" and computer == "stone":
  print("You lose")
elif human== "scissors" and computer == "scissors":
  print("Draw")
elif human== "stone" and computer == "scissors":
  print("You win")
elif human== "stone" and computer == "paper":
  print("You lose")
elif human== "stone" and computer == "stone":
  print("Draw")
else:
  print("Invalid input.")
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://eduapps.gitbook.io/python-intro/6.-exercise-paper-scissors-stone-game.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.