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Products that do what Daily Unfold does
A paper was folded and punched, where do the holes end up?
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I built a daily puzzle where a piece of paper is folded and hole-punched, and you predict where all the holes end up when it's unfolded. It's the kind of thing I used to do in grade school with actual paper and scissors, and it turns out the mental version is a surprisingly good spatial reasoning challenge. Three difficulties each day: easy is a 4×4 grid with one fold, hard is 6×6 with three folds. It's built with Next.js. The puzzles are generated deterministically on the fly using a daily seed. The engine runs a forward simulation of the paper folds using 2D coordinate mirroring, then…
Mar 2026 · dailyunfold.com
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2022 · twentyletters.com
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Countle is a daily puzzle game, a la Wordle, where you use 6 given numbers to produce of a sequence of calculations to reach a target number. In other words, it's a daily round of the "Numbers Game" from the British game show Countdown. Sample numbers round: https://www.youtube.com/watch?v=pfa3MHLLSWI A new puzzle appears every day!
2022 · countle.org
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2024 · triword.net
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Hi hn - I co-own a diner where I co-host a puzzle night that is kind of like a diner-themed escape room. At the last one, I made a puzzle that was crossword-like clues nested in brackets. People at the diner seemed to like it, so I resolved to make it a real game and Bracket City was born: https://bracket.city. I love crosswords, so it's been fun to write crossword-like clues: [it contains MSG] as well as clues that would not make it into a crossword: [___ hard place] I write all the puzzles and post a new one at midnight ET every day of the week. Still working on a lot of…
2025 · bracket.city
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I've been playing Wordle and remembered this puzzle game I used to play with my grandfather. It's inspired by the block puzzles in many newspapers but made to be shorter: just guess the nine letter word. So I made a quick thing to play with my family like we used to. I thought you guys might enjoy it.
2022 · nineletterwordgame.com
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Hey HN! I just finished building a puzzle game called Corral, and I’d love to share it with you. It’s a logic puzzle played on a rectangular grid, where some of the cells contain numbers. Your goal is to mark which cells are inside a single continuous loop that encloses all the numbers. For each numbered cell, the number tells you how many cells are visible in the four orthogonal directions (up, down, left, right) until a wall of the loop is hit, plus the cell itself. So a cell with a 2 must see one empty cell before hitting the loop boundary. Gameplay is all about deduction: you can mark…
2025 · mohammed321.github.io
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2024 · aaronson.org
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I built Flexboxle, a daily puzzle game where you use Flexbox to rearrange blocks to match a target goal state. How it works: * Your goal is to arrange a set of blocks into a specific pattern using Tailwind CSS Flexbox classes (and ) * After every submission, every block is graded as perfect (green), close (yellow), or wrong (gray) * You have 6 attempts per puzzle * The game checks block positions, not your specific CSS so there can be multiple solutions that work * There is a new puzzle every day so come back tomorrow for a new challenge The trickiest part of building this game was making it…
Jan 2026 · flexboxle.com
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