The Fiddler: Solutions

Independent solutions to puzzles from Zach Wissner-Gross's Fiddler on the Proof, the successor to FiveThirtyEight's Riddler. Each chapter states the puzzle with attribution, solves it from scratch, takes on the extra credit, and closes with a short program that confirms the answer numerically.

A working draft, growing as the archive is worked back through. It now spans dozens of puzzles, from the game-show grid of The Floor to fractal dartboards, folded hexagons, and the mutually staring sheep. Every solution was derived without consulting the published answers; the headline answers are checked against the official solutions wherever those are freely available.