Grid Works is the ultimate mind game, featuring 60 multi-dimensional challenges. The object of the game is to break the code with logic and deductive reasoning using the positive and negative visual clues in each color and pattern-matching challenge.

Difficulty level ranges from warm-up to expert. I spent about 30 minutes sampling the different difficulty levels, and boy do they get tough! However I was delighted when I would complete a puzzle. The solutions are provided to check your answers.

Grid Worksí compact spiral-bound design with magnetic foam pieces makes it ideal for travel.