Sudoku
The empty cell is only free until its row, column, and box speak
$ sudokuPlace a digit, check the grid, and let the constraints do the arguing.
Enter a value with row-and-column notation such as `1a=5`, use notes to hold candidates, and ask for a check when you want the board to highlight mistakes. Every row, column, and 3x3 box must contain 1 through 9.
The terminal gives you a clean puzzle state and the same logical work as a paper grid, with hints available when you choose to spend the points.
What you will see
Pencil marks become certaintiesreplay
Note candidates, then commit the digit.
How this command behaves
- Built for a solo session
- Save and resume your game
- Track your statistics and high scores
- Runs in the browser; nothing to install
- Playable entirely from the keyboard
Start it from the prompt
Usage
sudoku [--daily | savename]Aliases
sd
Opens the terminal in Sudoku.
Run $ sudoku