Quiltoku is a logic puzzle in the spirit of Sudoku, played with colours, shapes and patterns instead of numbers. Fill the grid so that every row, every column and every box uses each mark exactly once. If you can spot what is missing from a row, you can play.
Everyone gets the same daily puzzle, and its size and style change with the day of the week: small 4×4 boards, bigger 6×6 and 9×9 grids, and variations such as Latin (no boxes), Double (two puzzles in one) and Scramble.
Prefer to play without the calendar? Climb a ladder of almost five hundred levels across five worlds. New ideas arrive one at a time, each with a short explainer, and you earn stars for beating the target time.
There are no accounts and nothing to install. Your progress stays on your own device, and once the game has loaded it keeps working without a connection. You can add it to your phone's home screen.
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