Printable Logic Puzzles

A logic grid puzzle gives you a short story, a list of clues and a grid. Each person matches exactly one item in every category, and no two people share an item. The grid has a square for every possible match: you put an X where a clue rules a match out, and a dot where you know it is true. When every row and column has its dot, the puzzle is solved.

Here is how the first easy puzzle starts: Three friends are each going to a different place this summer, each traveling a different way. One of its clues reads: “The person who is going to Alaska is not traveling by train.”

Every puzzle is built from a hidden solution, then the clues are trimmed until none can be removed. A computer solver that only uses the reasoning steps a person would use must reach exactly one answer, and a second check tries every possible answer to confirm that only one fits all the clues. So you will never need to guess, and the answer key is always right.

• Kids and beginners: the easy puzzles, with three people and five or six clues.
• Classrooms: medium puzzles make a great partner activity; students explain each mark to each other.
• Adults and seniors: hard puzzles are a quiet, satisfying challenge that needs no general knowledge.