To complete a level, you must fill in the knitting pattern at the top of the screen. The step-by-step process involves examining the pattern to see which colors are needed. On the puzzle board below, you tap on groups of adjacent, same-colored discs to collect them. Collecting the number of discs indicated on them creates a corresponding spool of thread. You then drag this spool to the matching color section on the knitting pattern to fill it. Repeat this process for all the colors until the pattern is complete.
As a precaution, always pay attention to the number on the discs, as this indicates the exact quantity required to create a spool.
For a helpful trick, strategically collect discs in a way that causes the remaining ones to fall and form larger, more convenient groups for your next move. Planning ahead by matching the available discs to the colors needed in the pattern will help you solve the puzzle more efficiently.