This giant CMYK gradient jigsaw puzzle is an awesome brain-teaser Get immersed in this trippy brain teaser of a puzzle — which also makes a great gift for your stoner friends.

Thanks to the subtle shifts of color that make up the logic to solve the puzzle, you'll find yourself immersed in all the deviations of the rainbow.

1,000 Colours is one giant CMYK gradient split into 1,000 pieces with — you guessed it — a shade for each tile.