Brain Teaser Printable Logic Puzzles For Adults
Heli Whetzel
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. 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!
What is a Logic Puzzle?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. In each puzzle you are given a series of categories, and an equal number of options within each category. Each option is used once and only once. Your goal is to figure out which options are linked together based on a series of given clues. Each puzzle has only one unique solution, and each can be solved using simple logical processes (i.e. educated guesses are not required).
A custom-labeled grid is provided for every puzzle, like the one you see to the right. The grid allows you to cross-reference every possible option in every category. You can eliminate pairs you know aren't true with an X, and pencil in pairs you know are related with an O. If you know, for example, that Lauren wasn't born in 1961, you can add an X in the box where the Lauren column and 1961 row meet. Similarly, if you know that Bryant was born in 1971, you can add an O in the appropriate box. Furthermore, since every option can only be used once in any given puzzle, you can eliminate the four other options for Bryant in that category (1937, 1946, 1961, 1975) and the four other options for 1971 (Anahi, Jayden, Lauren and Nikolas).
Continue doing this for every clue you're given. Eventually you will have filled in enough X's and O's on the board that you will then be able to use simple logic to deduce the solution to the puzzle. For example, if A = B, and B = C, then A must equal C. Similarly, if A = B, and B =/= D, then A must not equal D.
The logic puzzles you've come to love from Puzzle Baron, now on your favorite tablet! New features like multi-level undo, auto-x abilities and custom error checking make logic solving a breeze. Try it now on your favorite tablet by choosing the appropriate link below!
Why Register a Free Account?You'll never have to register an account to play on this site, but there are several reasons you may want to play as a registered user:
The Puzzle Baron family of web sites has served millions and millions of puzzle enthusiasts since its inception in 2006. From jigsaw puzzles to acrostics, logic puzzles to drop quotes, numbergrids to wordtwist and even sudoku and crossword puzzles, we run the gamut in word puzzles, printable puzzles and logic games.
Our Math puzzles for kids are fun and benefit math students!
By solving our math number and logic puzzles and brain teasers students are actively developing analytical and problem solving skills. Puzzles are not just fun, but also benefit student learning. Math teasers can be used as warmers, homework or remedial learning and teaching materials. After each chapter or topic, puzzles can be used to assess student learning and ability. This way we can use math puzzles as instruments in student learning.
The puzzles on this site are based on the following math topics:
- multiples and factors
- even and odd numbers
- addition and subtraction
- number patterns
- multiplication
- prime numbers
- exponents
Are math puzzles come with answers and can be very challenging. If yo have any suggestions, please contact us.
Want even more of a challenge? These 4x6 puzzles are even more difficult than our "Challenging" puzzles. Make sure you set aside at least 30 minutes for each of these sizable brain teasers... We will publish a brand new 4x6 puzzle here every Friday morning. (2 pages per puzzle)
Make sure you have at least a good 45-60 minutes to spare for these brain crunchers! Our largest puzzle-size published to date, these 4x7 stumpers will definitely keep you on your toes. A new 4x7 puzzle is published here every Tuesday morning. (2 pages per puzzle)
Stuck on a puzzle and need a hint? Or do you just want to check your solution to make sure it's correct? Either way, we've got you covered! Just find the unique puzzle id for the puzzle you're working on (ex: K901BF) and enter it below to find the information you need.
All of our printable puzzles are available in PDF format. You will need Adobe Reader - a free download - to view and print them. Most computers will already have this installed, but if yours doesn't, click here to get Adobe Reader
64591212e2