Krillion
A daily trivia game where rare answers send you deeper
What it does
Seven prompts a day, same for everyone. Rare answers sink you deeper. Obvious ones barely count. One in a krillion.
Play Krillion free: take today’s Daily Dive, explore the 100-prompt Unlimited archive, discover themed modes, and climb the global leaderboards.
Krillion is a free open-answer knowledge game. Every day brings seven prompts, one short timer for each prompt, and a scoring system that rewards valid ideas beyond the first obvious response. The Daily Dive gives every player the same seven open-answer prompts for the day. A prompt asks for a member of a broad category, such as a city, food, fictional character, scientific idea, animal, invention, or work of art. There are no multiple-choice buttons. You decide on one answer, type it in your own words, and send it before the 25-second window closes. This format tests recall and judgment rather than recognition. A correct response must belong to the category, but there can be many correct…from krillion.me
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Krillion Wiki10d ago · krillion-wiki.online · ▲1Today's Krillion answers, hints, archives, and strategy

- CCountle2022 · countle.org · ▲152
Countle is a daily puzzle game, a la Wordle, where you use 6 given numbers to produce of a sequence of calculations to reach a target number. In other words, it's a daily round of the "Numbers Game" from the British game show Countdown. Sample numbers round: https://www.youtube.com/watch?v=pfa3MHLLSWI A new puzzle appears every day!
- IMI made a little math game named Summle2022 · summle.net · ▲189
I made this game for my children to play, as they are heavily into Wordle, and I thought they'd also like something maths based! Every puzzle is solvable and has at least one solution (usually more). There is a kids mode in the settings, plus a hard mode for extra difficulty.

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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, August 2026
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Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com