45 lines
2.5 KiB
Markdown
45 lines
2.5 KiB
Markdown
## Sudoku In a Line
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This demo began as a demonstration of the many ways a Sudoku board could be created using PySimpleGUI. It ended up being more complete application. The "build-a-Sudoku-board" port of the code can be represented in a somewhat boring single line of code.
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```python
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sg.Window('Sudoku',[[sg.Frame('',[[sg.I(random.randint(1,9), justification='r', size=(3,1),key=(frow*3+row,fcol*3+col)) for col in range(3)] for row in range(3)]) for fcol in range(3)] for frow in range(3)]+ [[sg.B('Exit')]]).read()
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```
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This layout uses list comprehensions to create the classic Sudoku board that is 9 boxes each consisting of 9 numbers. The single line of code produces this window when run on Windows 10:
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The board isn't a "valid" one. It's filled with random digits.
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Building it out further required adding on a board generator and then a few fun features. The board generation was discovered by searching through GitHub. I finally settled on this elegantly simple implementaiton found in this GitHub Repository:
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https://github.com/MorvanZhou/sudoku
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A big thanks is thus owed to Morvan Zhou for creating these puzzles for our enjoyment.
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You begin the game with a board much like this one:
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You can check your progress at any point by clicking `Check`. This will color each cell depending on the status of the cell.
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* If the answer is correct, the background will be white (or whatever is normal for the theme you're using)
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* If the answer is incorrect, the background color will turn red
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* If the answer is blank, the background will turn yellow
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It makes it easy to see what you've won the game. There's also a popup that's displayed when you click `Check` and the board has been correctly solved. Click `Solve` and the answers are all filled in for you.
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If you wish to start a new game click `New Game`. The "Mask Rate" determines what percentage of the cells are erased at the beginning.
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If you wish to run this program using Trinket without the debugger, the "Published" version is here:
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https://pysimplegui.trinket.io/sites/sudoku
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<iframe src='https://trinket.io/embed/pygame/bb346ef125?start=result' width='100%' height='600' frameborder='0' marginwidth='0' marginheight='0' allowfullscreen></iframe>
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