Find the listed words in the tile grid. Words can run horizontally, vertically, diagonally, backwards if enabled, and in bends if spiral words are enabled. Blind search hides both words and hints until a word drops.
Some letters are hidden on the underside of a tile. Click a tile you think is hiding part of a word. Correct hidden tiles flip over. When every hidden tile for a word has been revealed, that word drops, changes colour, and is crossed off.
Shared letters stay visible and can still help complete other words. In solo play your final score is based on right flips minus wrong flips, multiplied by the difficulty. In two-player play, each player scores right flips minus wrong flips under the same puzzle constraints.
Hide wrong flips is a harder solo option. Wrong flips still cost lives and count against the score, but they look like ordinary flipped tiles, so only a dropped word confirms that you picked the right hidden letters.
If you lose, the board reveals the missed words so you can see what was hidden. Starting a new solo game before finishing records a reset in your solo stats.