Sudoku Classic & Killer

Place numbers 1-9 in every row, column, and 3x3 box. No repeats allowed. Sounds simple? Try Expert mode and see how far you get.

Game Modes

• Classic Sudoku: the timeless logic puzzle you know and love
• Killer Sudoku: cages with target sums add a whole new layer of strategy
• Daily Challenge: a fresh puzzle every day with a unique seed, come back tomorrow for more

Difficulty

• Easy: perfect for beginners and quick sessions
• Medium: a solid challenge for regular players
• Hard: requires advanced techniques and careful thinking
• Expert: only for true Sudoku masters

Features

• Smart hints system (3 per day, earn more by watching a short video)
• Pencil notes for tracking candidates
• Unlimited undo
• Mistake counter (3 lives per game)
• Watch a video to continue after a mistake
• Timer with best time tracking per mode and difficulty
• 8 unlockable color themes (earn them by winning games)
• Full keyboard support on desktop
• Works on any device: phone, tablet, desktop
• 6 languages: English, Russian, German, French, Spanish, Turkish
• Auto-saves your progress

How fast can you solve it? Challenge yourself daily and climb the difficulty ladder!

Controls

• Left mouse button / 1-9 = place a number
• Arrow Keys = navigate between cells
• Backspace / Delete = erase
• Ctrl+Z = undo
• N = toggle Notes mode