Lock all four columns, left to right. Only the live column, outlined in gold, can lock.
A column locks when it holds a single-colour run from 9 down to 1 and nothing else. It turns gold and is out of play, then the next column goes live.
Tap a tile to pick it up along with everything on top of it. Then tap a column to drop it there.
You can drop a tile or stack on any column, as long as it isn't locked.
A stack only moves together if it's all one colour and counts down in order.
Target is the number of moves our solver took to beat the deal. Every deal is checked winnable.
Stuck? Hint works out a good next move from wherever you are and picks up the tiles for you. Tap the glowing column or press Play hint to make the move.
There's one new deal every day. Solve it to keep your streak going, and check your scores under Stats.