World's largest sudoku puzzle | Guinness world records | Giant puzzle

The World's Largest Sudoku Puzzle was carved into a hillside in
Chipping Sodbury, near Bristol, England, in view of the M4 motorway.
Measuring 275 ft. by 275 ft., up to a million cars passed by the giant puzzle
in a 7-day period in July, 2005. With Sudoku mania gripping the nation,
Guinness World Records recognized this as The World's Largest Sudoku Puzzle.
This puzzle has 1905 solutions!