Alternatives
Products that do what Riddle AI does
Brain Teasers Riddle
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This is the first iteration of a short game I’m making that tries to interactively explain some of my favorite math questions / ideas. My goal is mostly to get the player curious and not necessarily to explain absolutely everything. There were a lot of fun technical parts to building this: - For implementation reasons, it’s much easier if the lines all have integer intersection points with each other. To do this, when a new line is added I “cheat” by rounding intersections to integers and then splitting the old lines at the intersection into new linds (with potentially different slopes)…
2024 · rahulilango.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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Built and open-sourced in the era before AI. I’m sure you know where to find the code.
Apr 2026 · mehuleo.github.io
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2022 · doodleai.darraghoriordan.com
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75 brain teasers where the obvious answer is wrong
Jun 2026 · play.google.com
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Create fun, brain-teasing riddles instantly—free & no signup
Feb 2026 · toolifypro.com
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Hi HN, I've been experimenting on-and-off over the years trying to automatically generate crosswords [1]. Recently I've been feeling like my results are good enough that I want to share them and see what other people think. I'm not trying to claim that these could appear in, say, the NYT in their current state, but honestly the velocity of progress makes me feel like I will inevitably be able to automatically generate NYT-quality crosswords within just a year or so. A write-up is here: https://abstractnonsense.com/crosswords.html And you can play the crosswords here:…
2024 · abstractnonsense.com
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