BrainRash Brain Games
Sudoku — Worlds & Daily Logic
Six worlds. 180 handcrafted puzzles. One brilliant brain — yours. Every puzzle is verified to have exactly one logical solution, so you never have to guess.
Climb six Worlds
Easy, Medium, Hard, Expert, Master, Grandmaster — 30 levels each. Earn up to 3 stars per level: solve it, beat par time, use zero hints.
One puzzle, every day
A fresh Daily Challenge that's identical for every player on Earth. Build a streak, browse your calendar of victories, and refill your hint pouch.
Smart hints that teach
The hint engine finds the next logical move — naked singles, hidden singles — and fixes mistakes first, so you learn real solving techniques.
Made to be played
Pencil notes, undo, conflict highlighting, six gorgeous themes, optional sounds and haptics, and a hands-on tutorial that teaches by doing.
Compete & share
Game Center leaderboards for best times in every World, achievements for streaks and perfect solves, and shareable result cards.
Yours, offline, forever
No account. No ads. No internet required. Full VoiceOver support, a color-blind-safe palette, larger-digit mode, and Dynamic Type friendly text.
Need help?
Visit our dedicated support page for FAQs and to contact the team directly.
Sudoku Support & FAQ