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Products that do what Sumday – a daily game: make an equation from today's date does
Hi all! This is a game I made where you try to make an equation from today's date, using every digit in order. I had a substitute math teacher in middle school who did this on the whiteboard one day, and I've been doing it for fun every so often since. I was inspired by wordle to make it into a daily web game, but unlike wordle and other games in that genre, you don't need to guess one specific solution. Any valid equation works. I found that mechanic more enjoyable and let me focus on just the math. Each day does have a "canonical" solution that you can gradually reveal with the Hint…
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I made this game for my children to play, as they are heavily into Wordle, and I thought they'd also like something maths based! Every puzzle is solvable and has at least one solution (usually more). There is a kids mode in the settings, plus a hard mode for extra difficulty.
2022 · summle.net
- 2IM
Hey, maker here. After launching a daily word search game, I randomly thought of this math game while driving. Finally got around to making it and I think it turned out pretty cool. It’s a math search game that’s meant to help you practice your quick addition, subtraction, multiplication, and division skills. I’m hoping it’ll help people (even those like me who aren’t big on math) learn and increase their speeds. (There are also some settings you can enable to make the game harder) If you try it out, please let me know if you found it fun, if you have anything you’d like me to add, or if you…
2024 · worchle.com
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2022 · mathler.com
- 4WA
Mentally calculating the day-of-the-week for any date in history sounds like an impossible task for a normal person, but the algorithm is actually pretty simple to learn. Although there are tutorials for this elsewhere online, and little quizzes available, there didn't seem to be anything well optimised with multiple practice modes etc. I originally created a basic version of this just for myself, but a small group of friends and family found it interesting and gave suggestions such as the daily game. Multi-lingual support is a bit rudimentary at the moment, it will only translate the month…
2023 · benjoffe.com
- 5FI
Hello, HN! Figure is a little side project I’ve been working on. Someone described it as Bejeweled meets Wordle. I built the puzzle interface and website in Next.js and React, which was a first for me and overall a great learning experience. The daily puzzle data is queued up in a PostgreSQL table. Another table stores anonymous solve stats. Once a day, a cron job hits a serverless API that promotes the next puzzle as “live” and prompts Next.js to update the prebaked static site with the new data. The game state is managed with Redux and your stats are persisted to localStorage. Framer…
2022 · figure.game
- 6IM
2024 · triword.net
- 7CCountle▲152
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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Hey there! I'm the brains behind the math crossword game on my site. This game is all about making math a little more fun – users just drag and drop numbers to fill in the blanks and move on to the next level if they get it right. Let me know if face any issues or have any suggestions! :)
2024 · scientific.place
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Hey folks, I built Hisorty, a small daily game where you sort historical events in chronological order (strongly inspired by Wordle mechanics). Each day you get 6 events and 3 attempts to place them correctly. I found it surprisingly tricky to design those puzzles so the difficulty is just about right. Would love feedback on: - difficulty balance - UI/UX - whether the concept feels engaging long-term Happy to answer any questions about how I built it.
Apr 2026 · hisorty.app
- 14IM
I've been playing with this for quite some time and I think it's finally ready for public consumption. All feedback welcome.
2025 · madmonk13.github.io
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14d ago · tinkerandsee.com
- 17SM
Please let us know what you think. We would be so so grateful for feedback from the community. Thank you in advance!
2023 · mindlygames.com
- 18NL
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
- 19AD
2020 · arcadejack.com
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- 21M6
I built a minimal browser game where you have to make 67 from four numbers. https://simondarcyonline.com/67/
Dec 2025 · simondarcyonline.com
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Daily math puzzle. Can you reach 67?
Feb 2026 · the67numbergame.github.io
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Howdy HN. I wanted an excuse to do some lightweight JS/TS development and to get reacquainted with the Cloudflare stack, so I put together a daily word game. It's partially inspired by NYT's Spelling Bee and Wordle. The main goal is to find a specific word each day that uses each provided letter at least once. There's a secondary goal of finding as many words as possible. Right now progress is all stored on-device, but in the future I might add leaderboards or other competitive elements. Hope y'all enjoy!
2025 · wotd.is
- 24MY
A fun little game idea I had last year after building a personal kb based bit manipulator to have a better sense of the binary space. All sounds and graphics are my own.
2025 · 24bitsa.day
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