This puzzle’s pleasing palette will have you meditating on color theory as you solve it. 33 wooden balls, each in a slightly different color, can be arranged as you choose on the board—your goal is to jump them over each other, one by one, until just one is left. Whether you set up the balls according to the color wheel or choose your own pattern, you’ll enjoy watching the colors interact with each other as you spend some quality screen-free time in a flow state. Sustainably made by the British B-corporation Block Design, the Gradient Wooden Solitaire Game includes instructions as well as a bright blue cotton pouch for storage and board measures 0.7h x 7.8" diam. For ages 12+.