Sumday
a daily game: make an equation from today's date
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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!
HN · launched Aug 27, 2026 · 5 upvotes (top 87%) · 0 views
Niche: browser puzzle games · 310 launches, 26 in the last 7 days ▼ -7% · Explore this niche →
Category and tags
- Horizontal
- B2C
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 310 launches in browser puzzle games →
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 : 614 launches clear the similarity bar, closest 8 shown.
Attention rank: #593 of 615 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 302 days after the earliest competitor.
- Totle, daily math puzzle game; Saturday puzzles have the fewest answers · hn · 2026-11-09 · 7 upvotes · similarity 0.63
- Make 67 · hn · 2025-12-30 · 5 upvotes · similarity 0.56
- Math Game · ph · 2026-09-12 · 1 upvotes · similarity 0.55
- Jointter · hn · 2026-10-31 · 15 upvotes · similarity 0.55
- Daily Logic Games · ph · 2026-11-03 · 1 upvotes · similarity 0.55
- Dayzle · ph · 2026-10-13 · 1 upvotes · similarity 0.53
- digito. math puzzle · ph · 2026-09-09 · 1 upvotes · similarity 0.52
- Here's What You Do Daily Games · ph · 2026-09-21 · 1 upvotes · similarity 0.51
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