Verify Sudoku Board

Given a partially completed 9×9 Sudoku board, determine if the current state of the board adheres to the rules of the game:

• Each row and column must contain unique numbers between 1 and 9, or be empty (represented as 0).

• Each of the nine 3×3 subgrids that compose the grid must contain unique numbers between 1 and 9, or be empty.

Note: You are asked to determine whether the current state of the board is valid given these rules, not whether the board is solvable.

Example:

Output: False

Constraints:

• Assume each integer on the board falls in the range of [0, 9].