Raku Sudoku – logic puzzle

Pure Sudoku. No ads, no subscriptions. Try it free – upgrade once, play forever.

A premium classic Sudoku experience – no ads, no subscriptions.

Raku Sudoku is designed for players who value clarity, focus, and thoughtful gameplay. Six difficulty levels from Easy to Ludicrous, including legendary 17-clue puzzles curated by mathematician Gordon Royle – the purest and most challenging grids in classic Sudoku.

Pay once. Play forever. No distractions.

Features · Clean, distraction-free design · Six difficulty levels — Easy to Ludicrous · Legendary 17-clue puzzles by Gordon Royle · Notes, error checking, and hints · Progress tracking and highscores · Game Center leaderboards