Riddler

A modern, smart puzzle book, unlike anything Ive seen before, whose math and logic challenges will stretch your brain in new ways.Will Shortz, New York Times crossword editor and NPR puzzlemasterThe most mind-bending puzzles on the internet appear weekly in Oliver Roeders The Riddler column. Presented by Nate Silvers FiveThirtyEight, this first-ever collection features the columns most popular problems, along with six never-before-published puzzles, all exploring the math implicit in everyday occurences. The simplest require a mere flash of insight, while the toughest involve deep applications of analysis and probability theory. Designed to appeal to a range of skill levels, The Riddler is a must-have for any math or puzzle enthusiast.