Sudoku

Sudoku is a logic puzzle game originating from Japan. Your objective is to populate a 9x9 grid with the integers from 1 to 9. You must, however, make sure that every 3x3 square, every horizontal row, and every vertical row has exactly one number from 1 to 9.

How to play Sudoku

Rules

The Sudoku grid of 81 cells is arranged in 9 rows and 9 columns.

Segmented into nine 3x3 areas.

Certain cells already include numerical values referred to as "clues" or "hints."

Your task is to fill in the missing numbers from 1 to 9 so that:

• No numeral is duplicated in any horizontal row.
• No numeral is duplicated in any vertical column.
• No numeral is duplicated within any 3x3 rectangle.

Levels

Sudoku has many levels from easy to difficult.

Easy – has many hints, suitable for beginners.

Medium – requires more reasoning.

Hard – challenges patience and logic.

Expert / Evil – requires advanced strategy and sometimes pencil marks to reason.

Wish you have the most interesting puzzle-solving moments with Sudoku!