Fermi Chain
A Wordle-style game for building estimation skills
Fermi Chain launched on May 9, 2025 with 7 votes, #3,816 of 7,905 launches that month.
What it does
A daily estimation game where you chain together factors to make wild estimates with the goal of hitting the right order of magnitude.
Does a similar job
all alternatives →- FAFermi – A Wordle-style game for order-of-magnitude thinking2025 · fermi-game.andrewnoble.me · ▲52
I always thought it was cool when someone could make a plausible estimate from reasonable guesses. I recently learned that these are sometimes named after Enrico Fermi, the famous physicist, and its the same technique used to create his famous Fermi paradox. You build a rough logic chain using a few sliders and fixed quantities (e.g. weeks per year), and the goal is to get within an order of magnitude of the true answer. The math is simple; the thinking is the game. Would love feedback.
- WSWordle-style game for Fermi questions2025 · fermiquestions.org · ▲35
Some months ago @andrewrn tried to create a Wordle-style site for order-of-magnitude thinking. This was a wonderful idea, but the actual site was somewhat over-engineered and confusing. (https://news.ycombinator.com/item?id=43632278) In the past week, I looked at this idea again and built a very simple site which gives you a new Fermi estimation question every day: How many new cars were sold in the US in 2024?; How many humans have ever lived (including those currently alive)?; How many chickens are slaughtered for meat every year? To win, you need a guess within ±20% of the…
Figure is a daily logic puzzle game2022 · figure.game · ▲417Hello, HN! Figure is a little side project I’ve been working on. Someone described it as Bejeweled meets Wordle. I built the puzzle interface and website in Next.js and React, which was a first for me and overall a great learning experience. The daily puzzle data is queued up in a PostgreSQL table. Another table stores anonymous solve stats. Once a day, a cron job hits a serverless API that promotes the next puzzle as “live” and prompts Next.js to update the prebaked static site with the new data. The game state is managed with Redux and your stats are persisted to localStorage. Framer…
Online challenge: Build a CPU from scratch2018 · nandgame.com · ▲143An educational puzzle game. Solve a series of tasks where you build increasingly powerful components. Starts with the simplest logical components and ends up with a programmable computer.
WordLines – A zero-knowledge proof-based blockchain puzzle game2022 · github.com · ▲83Mobile ZK Puzzle Game with NFT rewards. Contribute to nalinbhardwaj/wordlines development by creating an account on GitHub.
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