Puzzles

Master of QYI Puzzle Series: Challenging Brainteaser Puzzles to Print and Play

by Nelson Doyle, Sep 1, 2008

This brainteaser puzzle series consist of sixty individual puzzles that vary in difficulty depending on the player’s reasoning and problem-solving skills and the puzzle design. Beware, because these brainteasers are extremely addictive and solving one QYI Puzzle will not be enough to satisfy your puzzle craving.

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History of Sudoku

by Lutheneior, Mar 23, 2007

A brief look at the history of Sudoku, and how it became so popular.

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Rubik's Cube, Back in Black

by Dr. Choc, Apr 7, 2007

Pertaining to the revival of the legendary Cube.

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How to Solve a Rubik's Cube

by correll, Jun 17, 2007

Are the stickers on your Rubik's cube wearing out? I have made this guide for a six step process for solving your very first Rubik's cube.

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Sudoku

by twist3d, Jul 8, 2007

Learn how to solve a Sudoku puzzle.

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The Most Difficult Riddle Ever Made

by ucla biker, Jul 28, 2007

In my (admittedly biased) opinion, this "A man walks into a bar..." riddle is the most difficult of its kind ever made. If you enjoy logic puzzles and have a lot of spare time, give it a go!

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