The Fed says this is a cube of $1M. They're off by half a million (calvin.sh)

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.

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.

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.

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/iPad app at https://apps.apple.com/us/app/chess-puzzles-offchess/id67447... or the Android app at https://play.google.com/store/apps/details?id=com.offchess

Would love feedback, bug reports, or suggestions.

Thanks!

Comments (19)

laurentlb · 7m ago

Nice project!

As it was not clear from the description, there's a one-time payment (4.29€) to get more than 7 puzzles in a day.

Lichess also offers a good alternative to this, although their offline support is limited.

tangoalpha · 3m ago

Nice app. Using moto edge 60 pro. The app navigation gets hidden under the phone navigation icons. I'd like to pay. Except without user login, I am unable to figure out if the purchase can be linkedin to my 2-3 devices (each of which may use a different Google account)

stavros · 29m ago

This is a nice app, but I have one bug report: When I tap on a piece, and it can capture another piece, it looks like it just can't move that way. Capturable pieces should have their background change somehow, to indicate that I can capture them.

avadhesh18 · 1m ago

Yeah, that’s more me being lazy than an actual bug. I left it like that assuming most people would figure it out anyway — but you’re right, it’s bad design. I’ll add a border around the "capturable" pieces.

Upvoter33 · 9m ago

That’s more of a feature request not a bug report

mhitza · 36m ago

I have TacticMaster (available on F-droid) but your app looks more polished and will have to give it a try as well.

bambax · 19m ago

Very nice! but why not a webapp as well (for those of us who seldom use their phone and can get bored at the office)?

rprouse · 38m ago

The app is full screen on my Samsung mobile so your bottom navigation is underneath the onscreen Android navigation and unusable. Happy to submit an issue and screenshots if you have a GitHub repo.

Other than that, it is working nicely so far.

avadhesh18 · 6m ago

I'm really sorry about your experience. Could you please let me know your device name and screen size? I will make sure to fix this, along with any other bugs people report here and push an update to the app stores by tonight.

stavros · 30m ago

Same here, there's some text at the top that's below my clock and icons:

https://imgz.org/ibGDKfuf/

tajd · 48m ago

This looks really cool! I can't remember what article I was reading the other day but it was advocating for local first software as being the true goal of creating user friendly software -> this app absolutely meet's that goal. Looking forwards to using it.

chatmasta · 41m ago

Awesome. I’ve never understood why Lichess limits the offline download to 50 puzzles.

djexjms · 31m ago

For what it's worth, the entire Lichess corpus of puzzles (over five million positions with solutions and theming tags) is available for download in CSV format at https://database.lichess.org/#puzzles

defrost · 10m ago

Nice. Any retrograde chess puzzles with this?

avadhesh18 · 7m ago

Not yet but interesting idea, I might add these as a category in the future.

eajr · 1h ago

Very cool app. Chess.com costs too much and lichess is rather ugly and has barebones puzzle support. I like how you can choose different categories. Will be using this from now on. Btw you have "Egnlish Opening" misspelled.

avadhesh18 · 9m ago

Thanks for your generous reply and Oh my god how did I miss that, will fix in the next update.

poloniculmov · 15m ago

Try lichess' beta app, it's much more user friendly, even if it's missing a couple of features.

khoury · 40m ago

Very cool looking! Downloaded. What tech did you build it with? :)