Alternatives
Products that do what Cipher Arena does
A Multiplayer Cryptogram Web App for Puzzle Enthusiasts
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2018 · github.com
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Hi HN! 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…
2025 · offchess.com
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2014 · cseweb.ucsd.edu
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2022 · github.com
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2024 · webcrypto-private-messages.vercel.app
- 23ML
2020 · morelettersinc.com
- 24SZ
2022 · zk-treasure-hunt.glitch.me
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