Valid Sudoku

by Apollo Wayne @Shinerising

Sudoku is a famous paper and pencil game. The goal of Sudoku is to fill a 9x9 grid with numbers so that each row, column and 3x3 section contain all of the digits between 1 and 9. You'll be given a finished 9x9 grid, and you need to determine if it's a valid Sudoku solution. Return true if it is, and false if it is not. ```ts type Matrix = [ [9, 5, 7, 8, 4, 6, 1, 3, 2], [2, 3, 4, 5, 9, 1, 6, 7, 8], [1, 8, 6, 7, 3, 2, 5, 4, 9], [8, 9, 1, 6, 2, 3, 4, 5, 7], [3, 4, 5, 9, 7, 8, 2, 6, 1], [6, 7, 2, 1, 5, 4, 8, 9, 3], [4, 6, 8, 3, 1, 9, 7, 2, 5], [5, 2, 3, 4, 8, 7, 9, 1, 6], [7, 1, 9, 2, 6, 5, 3, 8, 4] ] type result = ValidSudoku ; // expected to be true ```