To play Knotwords, start with the daily Mini or Classic puzzle. Each puzzle presents a grid with letters placed in specific sections. Your goal is to arrange these letters to form valid words both horizontally (across) and vertically (down). Begin by focusing on smaller sections of the grid, identifying possible words based on the given letters. As you fill in words, the puzzle guides you toward the solution. Use the zoom feature on larger puzzles for better visibility, especially on smaller screens like an iPhone. If stuck, try rearranging letters in a section to form different valid words, as some puzzles may have alternate solutions.