Super Sudoku 12X12: 100 12X12 Super Sudoku Puzzles: Volume 1
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.