Make: More Electronics

Chapter 23. Experiment 23: A Puzzling Project

Here’s another relatively simple experiment with logic, enabling a two-player game that seems deceptively easy—until you play it yourself. Like the Hot Slot game, I’m going to come back to it later in the book. In Experiment 32, I’ll suggest ways to upgrade the user input when I start to explore the world of sensors. For the time being, though, the game will be playable with pushbutton switches.

Background: The British King of Puzzles

Before the advent of television—before there was even radio!—British newspapers used to entertain their readers with little games and puzzles. These were much more challenging than today’s crossword puzzles.

King of the British puzzle-makers was Henry Ernest Dudeney, ...