Rules of the game

The goal is to collapse the puzzle into a single colored square by swiping to slide the tiles. The trick is that you need to queue all your swipes before seeing the resulting moves.

Squares of the same color combine to the next color in rainbow order:

When a tile combines with a tile that has stopped moving, it will be stopped.

Example:

swiping right:

but swiping left:

as the orange moves into the combined reds.

Yesterday's Solution

Mechanics