I’m not ashamed to admit it: I enjoy playing around with Wikipedia’s random-article function. Don’t judge me. I’m obviously not the only one. Web developer Jim Blackler took my dirty little secret one step further with Quizipedia, the quiz game built from fragments of random Wikipedia articles. The questions aren’t ridiculously hard, but Quizipedia is an unforgiving task master. One wrong answer and you lose. Pro tip: use the “pass” button to come back to particularly tough ones.