
Pharaoh Sudoku - Free Brain Game by Pharaohs Pride USA
Play free Sudoku puzzles with five difficulty levels, daily challenges, hints and scoring.
@elgayar007 · X
Check out what I just built with Lovable!
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Play free Sudoku puzzles with five difficulty levels, daily challenges, hints and scoring.
@elgayar007 · X
Check out what I just built with Lovable!

Calculate and compare Survivor.io damage scenarios with custom ATK and skill inputs.
Survivor.io Calculator — 《弹壳特攻队》伤害与升级计算器,用统一参数比较装备、技能和升级方案

Five historical figures debate your hardest life question and deliver a consensus verdict.
u/Rcoo232 · Reddit
I built a council of 5 historical figures that debates your hardest life decision (based on Karpathy's LLM Council) A few weeks ago, I came across Karpathy's "LLM Council" concept. You ask multiple Agents the same question independently, have them anonymously peer-review each other, then synthesise a final answer. The peer-review round is the genius part; models get surprisingly honest when critiquing anonymised responses. I turned it into a consumer product where the council members are hi

A daily puzzle game where you spot AI-generated errors to sharpen critical thinking.
u/CogniKing · Reddit
Play Parry — a 2-minute daily puzzle about catching AI's mistakes: spot the planted flaw, catch the answer that's lying to you I have been recently fascinated with puzzles as a way to help improve my BS-radar when using AI. I designed Parry to help with this - One puzzle a day - find the one flaw hidden in a confident paragraph, pick which of two AI answers actually helps you (one is subtly useless), call a claim true/false. Free, no account, nothing you input leaves your devi

Drop floors to stack a tower as high as possible, with each height representing a real building.
u/eashish93 · Reddit
I made a tower stacking game where every height you pass is a real building highrise.lol - tap to drop a floor, stack it as high as you can. Every height you pass is a real building. Free, no signup. Built with Claude Opus 5. Three things I got wrong. I thought the game was the hard part. It wasn't. Anyone can POST a fake score, so I rebuilt the physics to let the server replay your whole run from a seed and a list of taps and check it itself. That touched everything.

Interactive lessons in math, programming, data analysis, AI, and science.
@BruceWayne95290 · X
just leaving a comment cause its 1am and im vibe coding, will come back tomorrow (on an alt account for open claw fyi) I've worked with the following brands: vytadose, bajabeachco, jaje health, eric javits, 4knines, welleco, coatdefence

Test your prompt injection skills against AI agents in an interactive competitive challenge.
ibrahim_abdu777 · HN
We are giving away $100K > over the next 12 months to hack AI agents

Adjust neural network weights to fit data curves in this browser-based game.
Gooblebrai

Train your concentration with interactive games including Schulte Tables, Stroop Tests, and reaction time challenges.
Focus Game — 专注力训练小游戏集合,包含 Schulte Table、Stroop Test、Reaction Time Test 等浏览器训练工具

Interactive demo for experimenting with grading mechanics.
@TheEduardoRFS · X
I vibe coded a demo for grading, not in a great shape but it's fun to play a bit.

Roll down a narrowing track dodging blocks, with ten sliders controlling steepness, width, obstacles, and speed.
novlrdotcom · HN
Slope remade in HTML5 to load instantly on any browser, any device

Take quick online tests and get instant results to track your progress.
Nalife520 · V2EX
做了一个在线反应、记忆与专注力测试网站 最近做了一个叫 [PickTests]( https://picktests.com/) 的在线测试站。 反应时间、序列记忆、瞄准训练这些东西,网上其实已经有很多了。真正让我想重新做一遍的,是不少页面要么堆了很多不必要的内容,要么广告和装饰比测试本身更抢注意力,到了手机上也不一定顺手。 所以我给这个项目定了一个比较克制的方向: 不急着增加更多测试,先把每一个已有的测试认真做好。 目前上线了 6 个测试: - 反应时间 - 瞄准训练 - 序列记忆 - 数字记忆 - 多目标追踪 - 斯特鲁普测试 首页:[反应测试]( https://picktests.com/zh/) 网站使用纯 HTML 、CSS 和 JavaScript ,没有账号系统。成绩保存在当前浏览器,打开页面就可以开始。 我现在主要在调整这些细节: - 操作是不是足够顺手 - 测试节奏会不会太快或太慢 - 结果能不能一眼看懂 - 动效和反馈会不会太多 - 手机、平板和电脑上的体验是否一致 目前最想先做好的页面