Logic Puzzles for iPad and Android Tablets Similarly, if A = B, and B =/= D, then A must not equal D. For example, if A = B, and B = C, then A must equal C. 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. 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).Ĭontinue doing this for every clue you're given. Similarly, if you know that Bryant was born in 1971, you can add an O in the appropriate box. 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.
You can eliminate pairs you know aren't true with an X, and pencil in pairs you know are related with an O. 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.
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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.
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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! So, clear off your coffee table, sharpen your pencils and get ready to boost your mind.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. There are seven specific ways that puzzles are good for your brain.
We all know that puzzles are incredibly beneficial for children because of the physical and cognitive brain skills they foster but did you know that adult brains can benefit from puzzles too? The types and varieties of puzzles are almost endless. In modern times, jigsaw puzzles were invented by John Spilsbury in 1767, crossword puzzles were first published in newspapers in 1913, and the Rubik's Cube was created in 1974. Riddles are mentioned in the Bible, puzzle jugs date to the 1700 BCE in Cyprus, and magic squares were introduced in China around 700 BCE. Puzzles have existed in various forms since the time of the ancient world. The popularity of puzzles today in the digital age is part of a very long history. Whether your puzzle of choice is a 1,000-piece jigsaw, the New York Times Sunday crossword puzzle, a wood brain teaser, or a 3D mechanical puzzle, doesn't really matter because all puzzles share one key element, they power your brain. Puzzles are a great family activity or solo pastime.
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