Welcome to this superb collection of 100 brand new 12 x 12 sudoku puzzles. 12 x 12 sudoku puzzles work just the same as regular 9 x 9 sudoku puzzles, but on a larger scale Infact whereas a normal sudoku has 81 squares in it, a 12x12 sudoku has 144 squares in it. Here are the rules of 12 x 12 sudoku: - Place each number from 1 - 12 exactly once in each row, column and 4x3 bold-lined box that compose the grid