Kudoku - Killer Sudoku Puzzle

Killer Sudoku is Sudoku plus one idea: every dotted cage tells you what its digits add up to. That single clue turns guesswork into pure deduction — and Kudoku is built to make it click. NEW TO KILLER SUDOKU? An interactive tutorial teaches the rules on a real board. Fill every row, column and 3×3 box with 1–9, make each cage hit its target sum, and never repeat a digit inside a cage. A couple of minutes and you are solving. 25,000 PUZZLES, FIVE TRACKS Easy, Medium, Hard, Expert and Master — 5,000 validated boards each, graded by the reasoning a board actually needs, so difficulty climbs instead of jumping. Every level is a fresh board, and every track is free to play in order. A DAILY CHALLENGE WORTH KEEPING One new puzzle a day, a streak to protect and a badge for every month you complete. Missed dates stay in the calendar. HELL MODE — FREE FOR EVERYONE One run. Five lives for the whole descent, not five per floor. A correct digit scores, a longer combo multiplies what it scores, and clearing a floor without a single slip doubles the bonus. A wrong digit costs a life and your combo — never points. Nineteen designed floors, and then it keeps going deeper. Premium buys no advantage here: no hints, no Auto Notes, the same rules for everyone. How deep you get earns a rank you keep and a poster you can share. BUILT FOR THINKING • Cage-aware pencil notes and hints that reveal the next logical digit • A consistency wall that fills in on every day you play • Best times, solve counts and personal trends • Plays offline, saves every game, no account required • No ads, ever KUDOKU PREMIUM (OPTIONAL) Unlimited hints (free play includes 3 per day), one-tap Auto Notes, matching-note highlight, last-cell hints, your full pace history, all 25,000 levels unlocked instantly with unlimited mistakes, extra board themes. Premium offers monthly or yearly auto-renewing subscriptions or a one-time Lifetime purchase. Prices and available trial offers are shown before purchase. Manage or cancel subscriptions in Google Play. Restore purchases from the Premium screen. One cage at a time. Download Kudoku. Privacy Policy: https://gentleflow.github.io/legal/kudoku/android/privacy/ Terms of Use: https://gentleflow.github.io/legal/kudoku/android/terms/