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Show HN: Sumday – a daily puzzle: make an equation from today's date

https://www.playsumday.com/
3•buzzy_hacker•59m ago
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!

Show HN: Algolassi – A developer-focused site for .NET, MAUI, Blazor and SQL

https://algolassi.online/
1•noobplus•35s ago•0 comments

Kubernetes cleans house, bins legacy kube-DNS, IPVS, and cgroup v1

https://www.theregister.com/devops/2026/08/26/kubernetes-cleans-house-bins-legacy-kube-dns-ipvs-a...
1•croemer•39s ago•0 comments

First patient to undergo live AI-assisted brain surgery has tumor removed

https://www.bbc.com/news/articles/cjwg5n7y68xo
1•DGAP•1m ago•0 comments

Got tired of reconnecting MCPs every time, so we built the personal MCP wallet

https://mochipi.dev
1•luigipederzani•1m ago•0 comments

Detection Is a Research Discipline, Not a Rule Library

https://vega.io/blog/detection-is-a-research-discipline-not-a-rule-library
1•gk1•2m ago•0 comments

Show HN: 1Presence – AI with memory at scale, layered recall and a vault you own

https://1presence.com/
1•Cloud9Trader•4m ago•0 comments

So Long, TUI Sidebar

https://ampcode.com/news/so-long-tui-sidebar
2•tosh•7m ago•0 comments

AC2 Protocol: The missing security layer for AI agents

https://www.ac2protocol.org
3•josephcecala•7m ago•2 comments

The Unwelcoming States of America

https://www.economist.com/leaders/2026/08/27/the-unwelcoming-states-of-america
4•tumdum_•7m ago•0 comments

Harness Engineering

https://Habitat-Thinking.github.io/ai-literacy-superpowers/plugins/ai-literacy-superpowers/explan...
4•tomrod•8m ago•0 comments

Scientists Discover Vast Underground 'Anomaly' on Mars

https://www.404media.co/scientists-discover-vast-underground-anomaly-on-mars/
3•Brajeshwar•9m ago•0 comments

The engineer's case for building private markets technology

https://engineering.vega-alts.com/the-engineers-case-for-building-private-markets-technology-ab4a...
3•gk1•9m ago•0 comments

Years of reported brain injuries linked to a Six Flags roller coaster

https://www.cnn.com/2026/08/27/us/six-flags-rollercoaster-brain-injury-invs
2•cwwc•10m ago•2 comments

Show HN: Nanointerpret – LLM Interpretability Playground

https://nanointerpret.pages.dev/
3•belluxx•10m ago•0 comments

Selling SaaS in India

https://embedworkflow.com/blog/selling-saas-in-india/
4•ewf•11m ago•0 comments

Remembering Rishi Sanyal, DPReview's Former Science Editor

https://www.dpreview.com/news/remembering-rishi-sanyal-dpreviews-former-science-editor-a-rare-mix...
2•10729287•11m ago•0 comments

Trade (and Tariffs)

https://xkcd.com/3290/
9•throw0101d•13m ago•0 comments

Schools should be businesses, but what's the product?

https://saigaddam.medium.com/schools-should-be-businesses-but-whats-the-product-eadd042d841a
2•ChaitanyaSai•14m ago•0 comments

Watch AI Agents play a game for real money

https://agentofempires.com/
2•Jrothmann•14m ago•1 comments

Never Launch Alone

https://launchgenius.app
8•leejamiesj•17m ago•1 comments

Apple threat notifications and spyware: what everyone should know

https://www.accessnow.org/apple-threat-notifications-and-spyware/
2•ricobecks•17m ago•0 comments

U.S. considers fresh round of tariffs on semiconductors, report says

https://www.cnbc.com/2026/08/27/trump-semiconductor-tech-tariffs.html
4•mikhael•17m ago•0 comments

Show HN: Pause – weekly curated 1:1 coffee matches for London professionals

https://joinpause.co/
17•tanaysaboo123•18m ago•6 comments

Three UK airports hit by cyber-attack with data of 8.7M customers accessed

https://www.theguardian.com/business/2026/aug/27/uk-airports-operator-cyber-attack-customer-data-...
4•chrisjj•18m ago•0 comments

AI Artist

2•thallukrish•20m ago•0 comments

Show HN: The lightweight Claude and LMStudio, and memory across sessions.

https://call-me-vera.vercel.app
2•kofdai•21m ago•0 comments

FrameOS

https://frameos.net/
2•mariusandra•22m ago•0 comments

Ask HN: If I am 16 what should I learn? Which books should read?

2•AmirMakirr•23m ago•1 comments

Omarchy Linux is good,don't use itThere are better Linux Minimalist Alternatives

https://grigio.org/omarchy-linux-is-good-but-dont-use-it-there-are-better-linux-minimalist-altern...
3•grigio•24m ago•1 comments

X-engine correlator on a Ryzen NPU

https://destevez.net/2026/08/x-engine-correlator-on-a-ryzen-npu/
2•kersny•25m ago•0 comments