It’s color on a curve, and sure to be an interesting challenge! Part of our popular series, “Krypt Gradient” will test your color perception, the ability to distinguish between different hues. Each of the 631 pieces has been created by a hand-crafted, spiral-inspired cutter, resulting in unique cuts with many odd shapes. Without a traditional illustration and only subtle gradient transitions for direction, patience and focus are essential. Assemble this puzzle for many shades of colorful fun!