frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Open in hackernews

Show HN: Summle – A little maths Game

https://summle.net
18•kirchhoff•3d ago

Comments

kirchhoff•3d ago
I made the site a few years ago, but I've refined it and added some features over time. Hopefully it's worth another mention!
bertwagner•3d ago
Fun game, reminds me of the numbers round of Countdown. I would love to be able to use keyboard shortcuts instead of having to click.
pngeez•3d ago
Love this, I’m adding it to my daily rotation.
one-note•5h ago
Neat! Reminds me of 8 out of 10 cats does countdown. Only note is it’d be nice if the prior “yellow” square would be auto-injected if you click an operator when there’s no number on the left cell.

And maybe if it had more “big” numbers, the expert mode is still pretty easy.

jldugger•3h ago
> Reminds me of 8 out of 10 cats does countdown.

... "8 out of 10 cats" is a comedy troupe. Countdown is the name of the game, and in particular the Numbers Round: https://en.wikipedia.org/wiki/Countdown_(game_show)#Numbers_...

stephenlf•4h ago
Fun little game. How does the engine know that a solution is optimal?

Touching the back wall of the Apple store

https://blog.lauramichet.com/touching-the-back-wall-of-the-apple-store/
54•nivethan•3d ago•18 comments

I made my VM think it has a CPU fan

https://wbenny.github.io/2025/06/29/i-made-my-vm-think-it-has-a-cpu-fan.html
449•todsacerdoti•14h ago•115 comments

My home servers are not a homelab

https://blog.nradk.com/posts/homelab/
34•nradk•2h ago•37 comments

Cell Towers Can Double as Cheap Radar Systems for Ports and Harbors (2014)

https://spectrum.ieee.org/cell-tower-signals-can-improve-port-security
52•transpute•6h ago•26 comments

The Book of Shaders

https://thebookofshaders.com/
61•max_•3d ago•9 comments

Ask HN: What Are You Working On? (June 2025)

120•david927•7h ago•430 comments

Amber insect fossils reveal "zombie" fungi likely lived alongside dinosaurs

https://www.cnn.com/2025/06/24/science/amber-insect-zombie-fungi-fossil
19•jackgavigan•3d ago•2 comments

Revisiting Knuth's "Premature Optimization" Paper

https://probablydance.com/2025/06/19/revisiting-knuths-premature-optimization-paper/
84•signa11•3d ago•43 comments

Show HN: Octelium – FOSS Alternative to Teleport, Cloudflare, Tailscale, Ngrok

https://github.com/octelium/octelium
297•geoctl•16h ago•123 comments

We accidentally solved robotics by watching 1M hours of YouTube

https://ksagar.bearblog.dev/vjepa/
86•alexcos•11h ago•68 comments

Bloom Filters by Example

https://llimllib.github.io/bloomfilter-tutorial/
202•ibobev•16h ago•30 comments

Finding a former Australian prime minister’s passport number on Instagram (2020)

https://mango.pdf.zone/finding-former-australian-prime-minister-tony-abbotts-passport-number-on-instagram/
93•guiambros•5h ago•30 comments

4-10x faster in-process pub/sub for Go

https://github.com/kelindar/event
118•kelindar•12h ago•26 comments

WorldVLA: Towards Autoregressive Action World Model

https://arxiv.org/abs/2506.21539
10•chrsw•4h ago•1 comments

The $25k car is going extinct?

https://media.hubspot.com/why-the-25000-car-is-going-extinct
88•pseudolus•12h ago•174 comments

Nearly 20% of cancer drugs defective in 4 African nations

https://www.dw.com/en/nearly-20-of-cancer-drugs-defective-in-4-african-nations/a-73062221
77•woldemariam•4h ago•43 comments

The Chan-Zuckerbergs stopped funding social causes

https://www.washingtonpost.com/technology/2025/06/29/mark-zuckerberg-priscilla-chan-school-closure/
60•1vuio0pswjnm7•3h ago•30 comments

Many ransomware strains will abort if they detect a Russian keyboard installed (2021)

https://krebsonsecurity.com/2021/05/try-this-one-weird-trick-russian-hackers-hate/
224•air7•9h ago•129 comments

Anticheat Update Tracking

https://not-matthias.github.io/posts/anticheat-update-tracking/
25•not-matthias•6h ago•4 comments

China Dominates 44% of Visible Fishing Activity Worldwide

https://oceana.org/press-releases/china-dominates-44-of-visible-fishing-activity-worldwide/
103•scubakid•6h ago•58 comments

The Medley Interlisp Project: Reviving a Historical Software System [pdf]

https://interlisp.org/documentation/young-ccece2025.pdf
81•pamoroso•13h ago•7 comments

Show HN: Rust -> WASM, K-Means Color Quantization Crate for Image-to-Pixel-Art

https://github.com/gametorch/image_to_pixel_art_wasm
33•gametorch•3d ago•4 comments

Commodore acquired for a 'low seven figure' price – CEO from retro community

https://www.tomshardware.com/video-games/retro-gaming/commodore-acquired-for-a-low-seven-figure-price-new-acting-ceo-comes-from-the-retro-community
53•amichail•5h ago•11 comments

Error handling in Rust

https://felix-knorr.net/posts/2025-06-29-rust-error-handling.html
107•emschwartz•7h ago•90 comments

Loss of key US satellite data could send hurricane forecasting back 'decades'

https://www.theguardian.com/us-news/2025/jun/28/noaa-cuts-hurricane-forecasting-climate
266•trauco•10h ago•123 comments

Modelling API rate limits as diophantine inequalities

https://vivekn.dev/blog/rate-limit-diophantine
45•viveknathani_•2d ago•5 comments

Ask HN: Is the header CSS broken for you?

21•LorenDB•2h ago•7 comments

Use keyword-only arguments in Python dataclasses

https://chipx86.blog/2025/06/29/tip-use-keyword-only-arguments-in-python-dataclasses/
8•Bogdanp•3h ago•2 comments

ICE test train reaches speeds of up to 405.0 km/h

https://www.deutschebahn.com/de/presse/pressestart_zentrales_uebersicht/ICE-Testzug-faehrt-bis-zu-405-0-km-h-und-sammelt-wichtige-Erkenntnisse-fuer-den-Hochgeschwindigkeitsverkehr-13428394
12•doener•5h ago•3 comments

Reverse Engineering the Microchip CLB

http://mcp-clb.markomo.me/
24•_Microft•6h ago•5 comments