FACTS ABOUT UNIVERSAL CROSSWORD PUZZLE - UNIVERSAL CROSSWORD REVEALED

Willing to tackle a monster? This colossal Sudoku problem just isn't with the feint of coronary heart! Remedy the puzzle so that every 4x4 box over the gigantic 16x16 grid consists of the figures 0-9 and letters A-F.Sudoku X is Sudoku by using a twist - the X throughout the middle of your puzzle won't be able to have any repeated quantities!Andrews