
CubeUnstuck
Rubix Cube solver & voice-guided tutor.
What it does
Most solvers just spit out complex algorithms that treat you like a robot. CubeUnstuck is a browser-based tutor that teaches you how to solve your specific scramble. Scan your real cube via camera to get a 3D digital twin. Then, follow hands-free, voice-guided steps using the beginner-friendly Layer-by-Layer method. It even detects impossible states (like twisted corners)! It’s the anti-YouTube tutorial: you get real understanding and "aha!" moments with zero reading required.
Does the same job
all alternatives →- RCRubiks Cube SolverJul 2026 · speedcube.com.br · ▲23
Speedcube is an open-source platform for speedcubers featuring a Rubik's Cube solver, competition timer, algorithm library, and AI-assisted cube recognition directly in the browser. Built with React, TypeScript, Rust, and Python, the project aims to become an all-in-one platform for cubers—from beginners to competitive solvers. http://github.com/williamisnotdefined/rubiks-cube-solver/
A puzzle I couldn't solve for a year – cubers cracked it in an hour16d ago · skimmiq.com · ▲18Dev here. I created a puzzle that looks like Rubik's cube but works differently. Instead of turning faces, closed bands of 12 stickers slide around the cube. Every scramble is solvable. I built on-device AI solvers that solve it in about 60 moves (sometimes substantially less than that) I'm not even a cuber so since I created it I've been thinking that no human can solve it. Until this Tuesday when I showed it to r/Cubers. It took them about an hour to find a solution. The first human solve was about 240 moves using mostly (how they call it) 4-move commutators:…
Rubik N×N SolverJun 2026 · 8gwifi.org · ▲5Solve 3×3–10×10 cubes in your browser with animated 3D steps
- IMI'm building the “chess.com” of speed cubing2022 · cubedesk.io · ▲140
Scroll through all 43252003274489856000 Rubik's Cube states27d ago · everycube.alen.is · ▲295Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

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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.
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Launched alongside, April 2026
the whole month →
- AG
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
- IB
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
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- BC
Life & fun · Apr 2026 · sam-burns.com
- IB
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app