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Hi HN!I&#x27;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.Why? Well, my Wi-Fi is terrible in the bathroom—and that&#x27;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.OffChess is an iPhone&#x2F;Android app that contains over 100,000 chess puzzles, fully offline and completely ad-free. You can solve puzzles by category (Mate in 1&#x2F;2&#x2F;3&#x2F;4&#x2F;5, tactics like pins&#x2F;forks&#x2F;skewers, or openings like Sicilian&#x2F;French, etc). You gain or lose points based on how you perform, so there&#x27;s a light rating system to keep things engaging.No accounts, no tracking, no monthly subscriptions, no internet required. Just pure, old-school tactical chess training, wherever you are.You can check out the iPhone&#x2F;iPad app at <a href="https:&#x2F;&#x2F;apps.apple.com&#x2F;us&#x2F;app&#x2F;chess-puzzles-offchess&#x2F;id6744736661?platform=iphone">https:&#x2F;&#x2F;apps.apple.com&#x2F;us&#x2F;app&#x2F;chess-puzzles-offchess&#x2F;id67447...</a> or the Android app at <a href="https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.offchess">https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.offchess</a>Would love feedback, bug reports, or suggestions.Thanks!

Show HN: OffChess – Offline chess puzzles app

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Hey HN,I built Jukebox because I got frustrated with group music apps and Spotify’s limitations (not everyone has Spotify, and collaborative playlists are still too easily dominated by one person). Jukebox is a web app that lets you create a group queue—anyone can join via link, add YouTube songs, and the system automatically rotates songs so everyone gets a fair turn (no more playlist hogs).Web-based, no accounts, no installs.Drop in a YouTube link or search and add music instantly.Songs rotate in round-robin order (so even if one person adds ten songs, nobody else is skipped).Entirely open source (MIT), self-hostable with Docker, privacy-friendly.Live demo: <a href="https:&#x2F;&#x2F;jukeboxhq.com" rel="nofollow">https:&#x2F;&#x2F;jukeboxhq.com</a>Code: <a href="https:&#x2F;&#x2F;github.com&#x2F;skeptrunedev&#x2F;jukebox">https:&#x2F;&#x2F;github.com&#x2F;skeptrunedev&#x2F;jukebox</a>I made this as a stress-relief project while pivoting my actual startup (Trieve) and used it to practice UI&#x2F;UX (neo-brutalist design, drag-and-drop), plus experiment with AI pair coding.Would love your feedback or feature ideas!

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