Your objective is to rearrange the tiles on the grid and form a complete and perfect gradient across the board.

There's no winning or losing - just aim for the best time in the fewest moves.

Two opposite corners are locked in place, and define the start and end colours of the finished gradient.

Drag any tile onto another to swap their two positions. Keep going until every colour sits where it belongs.

A successfully placed tile will pulse and chime, and a dot appears to show it's correctly positioned.

Work from the corners inwards. The edges blend between two known colours, so they're easiest to read; fill the middle once the borders are set.

Done with today's grid? Head to the Archive for a different puzzle every day since launch.