The primary objective is to complete the knitted pattern at the top of the screen by using the correct colored threads. To do this, you must first create full spools of thread. On the puzzle grid at the bottom, find two spools of the same color and merge them by dragging one onto the other. This action creates a single, full spool which then appears in the holding area above the grid. Once you have a full spool, drag it from the holding area up to the knitting pattern. Match the color of your spool to the corresponding color in the pattern to fill it in. Continue this process of merging spools and applying them to the pattern until the entire design is complete and the level is finished.
Not covered in this video
A useful tip is to plan your merges to clear paths on the grid, allowing you to access and combine other matching spools.