Sumday
a daily game: make an equation from today's date
Details
- External ID
- 49464247
- Source
- HN
- Company
- —
- Product
- Sumday
- Website domain
- playsumday.com
- Launched
- Aug. 27, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.12634408602150538
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
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 button, but that doesn't need to be your equation.Let me know what you think, I hope you enjoy it!
Enrichment
- Theme
- educational games and interactive learning apps
- Vertical
- Media & entertainment
- Function
- —
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- daily math puzzle game from date
- Manually corrected
- False
Could you build this?
Yes It is a client-side daily math puzzle game similar to Wordle, easily built with standard HTML/CSS/JavaScript and basic arithmetic parsing.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one — 257 launches clear the similarity bar, closest 8 shown.
Attention rank: #239 of 258 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 302 days after the earliest competitor.
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Other launches for this product
- No other launches for this product.