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Show HN: OffChess – Offline chess puzzles app
Hi HN!<p>I'm the developer of rdx, a mildly popular ad-free, privacy and user friendly Reddit client. This time, I made something for a very specific use case: solving chess puzzles with no internet.<p>Why? Well, my Wi-Fi is terrible in the bathroom—and that's where I do some of my best thinking. I tried printing out “mate in X” puzzles to solve offline, but they weren’t fun without interaction. So I built OffChess.<p>OffChess is an iPhone/Android app that contains over 100,000 chess puzzles, fully offline and completely ad-free. You can solve puzzles by category (Mate in 1/2/3/4/5, tactics like pins/forks/skewers, or openings like Sicilian/French, etc). You gain or lose points based on how you perform, so there's a light rating system to keep things engaging.<p>No accounts, no tracking, no monthly subscriptions, no internet required. Just pure, old-school tactical chess training, wherever you are.<p>You can check out the iPhone/iPad app at <a href="https://apps.apple.com/us/app/chess-puzzles-offchess/id6744736661?platform=iphone">https://apps.apple.com/us/app/chess-puzzles-offchess/id67447...</a> or the Android app at <a href="https://play.google.com/store/apps/details?id=com.offchess">https://play.google.com/store/apps/details?id=com.offchess</a><p>Would love feedback, bug reports, or suggestions.<p>Thanks!
SVGs that feel like GIFs
Google can now read your WhatsApp messages
Bootstrapping a side project into a profitable seven-figure business
Open letter accuses BBC board member of having a conflict of interest on Gaza
Open Letter: <a href="https://docs.google.com/document/d/1n3926pSPNwXd8j7I716CBJEzqT_vJjdab6cOQkFCCXk/edit?tab=t.0" rel="nofollow">https://docs.google.com/document/d/1n3926pSPNwXd8j7I716CBJEz...</a>
Supabase MCP can leak your entire SQL database
New sphere-packing record stems from an unexpected source
New sphere-packing record stems from an unexpected source
I used o3 to profile myself from my saved Pocket links
I used o3 to profile myself from my saved Pocket links
Mercury: Ultra-fast language models based on diffusion
Mercury: Ultra-fast language models based on diffusion
Bitchat – A decentralized messaging app that works over Bluetooth mesh networks
Adding a feature because ChatGPT incorrectly thinks it exists
Adding a feature because ChatGPT incorrectly thinks it exists
Why English doesn't use accents
Why English doesn't use accents
A non-anthropomorphized view of LLMs
A non-anthropomorphized view of LLMs
Serving 200M requests per day with a CGI-bin