Warning, this is not for the faint hearted. You may think you like a challenge, but will you be up for this seemingly endless puzzle that is over 21 feet long (that's approximately 6.5 metres) containing 8,929 empty squares? You may start off swiftly, but the difficulty level increases as you progress. It folds-up and is contained in a sturdy slipcase and in case you need it the solution is at the end.
At 21 feet, 9 3/4 inches long, and with 8,929 empty squares to fill, this huge puzzle adds big excitement to the popular game. It's composed of 167 regular-sized (9x9) puzzles, linked together at 3x3 corners. Each individual sudoku's starting numbers are symmetrically placed, and no more than 30 numbers are given. Also, each 9x9 puzzle has a unique solution-and the difficulty level increases as you progress from left to right for a formidable sudoku!