Picture-perfect logic puzzles . . . in vibrant two-color! Now, when youre cracking a code to solve a conundrum, youre also creating art. Simply use the numbers around the grid—some in color, some in black—to guide you as you fill in the squares. Gradually an image will emerge, and youll be rewarded with a completed picture by the end. Not only do these puzzles sharpen logical thinking and cognitive skills, theyre tons of fun!