ALBAWABA International Sudoku Day, celebrated annually on September 9th, honors one of the most beloved puzzle games in the world. Sudoku has captured the attention of millions with its blend of logic, patience, and problem-solving. But while it is now a global phenomenon, its history and origin are less well-known. So, who invented Sudoku, and how did it become such a popular pastime? Despite its Japanese name, Sudoku's roots trace ...