International Sudoku Day Cards

International Sudoku Day is celebrated to promote the popular logic-based number puzzle 'Sudoku,' which enhances cognitive skills and provides entertainment worldwide. The day encourages enthusiasts to solve Sudoku puzzles, learn more about its history, and share the game with others. Sudoku has become a global phenomenon since its creation in the late 20th century, fostering mental exercise and problem-solving skills across all age groups.