select difficulty
No sign-ups, no timers pressuring you, no ads breaking your focus mid-solve. Just a clean sudoku board, five difficulty levels, and a theme for every mood — pick a number, sink in, and let the grid do the rest.
From catppuccin to solarized, switch your board's entire mood in one click. Find the palette that makes numbers click.
Ease in with 38 clues, or go bare-knuckle with 17. Every puzzle is generated fresh and guaranteed to have exactly one solution.
No ads between moves, no popups asking for your email. Just a grid, a numpad, and the quiet satisfaction of solving it.
Sudoku doesn't need a story, a soundtrack, or a tutorial that takes longer than the puzzle itself. Nine rows, nine columns, nine boxes — and one honest rule: every number appears exactly once. That simplicity is exactly why it's stuck around this long. There's no luck to blame and no shortcut to fake. Just you, the grid, and the small, satisfying click of a row finally coming together.
Whether you're solving on a coffee break, winding down before bed, or chasing a faster personal best on expert mode, this version is built to get out of your way. Pick a difficulty, pick a theme, and get solving.