Sudoku.game

Rating8.5 (3,101 votes)
ReleasedAugust 2018
TechnologyHTML5
PlatformBrowser (desktop, mobile, tablet)

Sudoku is a timeless puzzle game that challenges your logic and reasoning skills. Played on a 9×9 grid, the goal is to fill every row, column, and 3×3 subgrid with numbers from 1 to 9 — but with one important rule: no number can repeat within any row, column, or subgrid.

How To Play Sudoku Game ?

Each puzzle starts partially filled with numbers. Your job is to fill in the empty cells by following these rules:

  • Each number 1 through 9 can only appear once per row.
  • Each number 1 through 9 can only appear once per column.
  • Each number 1 through 9 can only appear once in each 3×3 box.

Using logic and deduction, you work through the puzzle step-by-step until the entire grid is complete.

Features

  • Simple and clean interface for easy gameplay.
  • Notes-taking tool to help plan your moves.
  • Duplicate numbers automatically highlighted in red.
  • Four difficulty levels to suit beginners and experts alike.

Controls

  • Number input — Choose digits 1-9 from the keypad or keyboard.
  • Notes mode — Toggle to add small candidate numbers for possible answers.
  • Erase/Delete — Remove numbers or notes from a cell.
  • Undo/Redo — Step back or forward through your moves.
  • Auto-check — Highlights mistakes like duplicate numbers in real-time.

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