Sduko

Sudoku, a Japanese term meaning “single number,” has a rich history. It traces its roots back to the late 18th century in Switzerland, where a mathematician named Leonhard Euler developed a puzzle called “Latin Squares.” However, the modern Sudoku we know today was popularized in Japan in the 1980s. Its global acclaim began in the early 2000s when newspapers worldwide started featuring Sudoku puzzles.

At its core, Sudoku is played on a 9×9 grid, divided into nine 3×3 subgrids. The objective is to fill in the entire grid with numbers from 1 to 9, ensuring that each row, column, and subgrid contains every number exactly once. It may sound simple, but as you dive deeper, Sudoku unveils its complexity.

Begin by identifying the easiest numbers to place. Look for rows, columns, or subgrids with a significant number of given digits. Fill in the obvious choices before moving on to more challenging areas. Scan rows, columns, and subgrids for missing numbers. Cross-reference with existing numbers to deduce potential placements. This technique helps uncover hidden patterns. Identify rows, columns, or subgrids with a single missing number. Deduce its value by eliminating possibilities based on neighboring numbers.