Your question is Validate Sudoku Correctness. Start with the requirements on the right.
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Samsara may receive structured diagnostic data from a Vehicle Gateway, where each record must satisfy strict validity rules before processing. Given a complete Sudoku grid, determine whether it is valid.
A grid is valid if every row, every column, and each of the nine 3x3 boxes contains every digit from 1 through 9 exactly once.
Implement is_valid_sudoku(grid), where grid is a 9x9 list of lists containing integers. Return True when the grid satisfies all Sudoku rules, otherwise return False.
The grid is guaranteed to be complete and well-formed, so inputs contain only integers from 1 through 9 and always have exactly nine rows and nine columns.
def is_valid_sudoku(grid):