easy_solve | Solve easy sudokus |
find_empty | Find the first empty cell in a sudoku grid |
get_box | Get the smaller 3 by 3 grid in a sudoku |
print_board | Pretty print a sudoku board |
sample_boards | Sample sudoku grids |
solve_sudoku | Solve a sudoku |
valid | check if a number can be placed in a certain position. |
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