The grid allows you to cross-reference every possible option in every category. educated guesses are not required).Ī custom-labeled grid is provided for every puzzle, like the one you see to the right. Each puzzle has only one unique solution, and each can be solved using simple logical processes (i.e. Your goal is to figure out which options are linked together based on a series of given clues. In each puzzle you are given a series of categories, and an equal number of options within each category. Logic puzzles come in all shapes and sizes, but the kind of puzzles we offer here are most commonly referred to as 'logic grid' puzzles. Feel free to solve online just for fun, or, for an added challenge, register a free account and compete against thousands of other solvers to make it into our Logic Puzzle Hall of Fame! Welcome to the world's largest web site devoted to logic puzzles! We've got more than 25,000 unique puzzles available for play, both online and the old fashioned way - with pencil and paper.