I’m a huge fan of all sorts of puzzles (especially logic puzzles with a mathematical flair). As an enthusiast and sometimes-creator of escape rooms, I love creating various types of original puzzle—some of them which work online are exhibited here, as well as non-original puzzles I have heard elsewhere and loved.
Logic Puzzles: deduce the unique answer satisfying a set of constraints in a pure environment.
- Find ten numbers which answer ten interlinked questions.
- Determine the behaviour of three mystery logic gates.
State Exploration:
Design an algorithm to prod at your environment and deduce some critical feature.
- Deduce the number of carriages while trapped on a circular train.
Strategy Finding: design a winning strategy to a game.
- Lock your opponent off from travelling in a bridge battle.
Optimisation: find a rule to maximise or minimise the score or time taken, for example.
- Weigh up 12 coins to find the fake (with some bonus puzzles).
- Find the fastest route through a subway system.
Probability: estimate the probability or expected value of some event given a set of information.
- Some “easy” introductory puzzles about anthropics.
- Crack five locks by pure chance.
- Play on the famed Monty Hall gameshow (and some variants).
Number Puzzles: frequently of the form “find a number which satisfies all of a list of constraints”.
- A trivia-style quiz where you sort numbers in the form of cryptic clues.
Other Mathematical Puzzles: these rely on other mathematics to solve, such as higher-dimensional thinking or integration.
- 🚧 None to see here yet! Check back soon.
Word Puzzles: match patterns in words, arrange letters, find words which meet constraints, and so on.
- Bracket City, a clone of the original so that I can make and share my own.