Marbledoku: Logic Puzzle

Every racer needs their own space.

Marbledoku is a calm logic puzzle starring the marble racers from Daily Marble, the marble race channel. Seat one racer in every row, every column and every colour patch, and don't let any two racers touch, not even corner to corner. Every board has exactly one answer, and you can always reach it by logic. No guessing needed.

TAP, THINK, SEAT • Tap a square once to cross it out, twice (or hold) to seat a racer • Auto dots mark the squares a racer can't use, so you can focus on the thinking • Bump two racers together and they'll tell you about it

LEARN AS YOU GO • A short hands-on tutorial teaches the rules in a minute • Lesson cards explain each new trick the first time a board needs it: locked lanes, squeezes, shared lanes, potholes and pole sitters

SIX TEAM WORLDS, 120 LEVELS • The Garden, the Thicket, the Trench, the Lantern, the Kiln and the Long Night • Boards grow from 5×5 to 9×9, with potholes, pole sitters and expert puzzles • Each world is hosted by a racer who appears on every board

RACER POWERS • Pit Stop seats a racer in the right spot; X-ray and Scan show you where to look • Take a hint when you're stuck. Solve with no help for three stars

A NEW BOARD EVERY DAY • The daily 8×8 is the same for every player • Hosted by the winner of the latest Daily Marble race • Keep your streak going and share your time with friends

AND MORE • Meet all 24 racers and watch them race on YouTube • A group photo of your racers every time you solve a board • Colour-blind shapes, music, sound and vibration you can turn off • Remove Ads once, keep it forever (restores on a new phone) • Plays offline