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Show HN: A Chrome extension that gives you chess tactics on new tab pages

https://leetchess.com/
5•0xmattf•2h ago
Hello,

This is something I've wanted to build for awhile (first bought the domain in 2020 (then lost it for a year+)). It's a tactics solver on each new tab page.

There are 5 modes of play:

Easy (<1200 elo)

Medium (1200-1800)

Hard (1800-2400)

Expert (2400+)

Speedrun (solve as many puzzles as possible in 60 seconds).

I'm having a ton of fun with it, and definitely noticing improvements with actual games (definitely solved the most puzzles in my life while developing this extension).

If you check it out, please let me know what you think. Any feedback is good!

Launchyard – Vibe Code a Business

https://launchyard.dev
1•hackmaxim•32s ago•1 comments

HubLite – A native macOS CRM for people who find HubSpot/Salesforce overkill

https://www.innobera.com/hublite/
1•Evian-SP•1m ago•0 comments

Show HN: MemberLane – Paid Communities on Telegram, Discord, and WhatsApp

https://www.memberlane.app
1•grene98•3m ago•0 comments

Reddit is the #1 most cited source across every major AI search platform

https://virtualuncle.com/answer-engine-optimization-aeo-guide-2026/
3•svrbvr•6m ago•0 comments

Kalshi wins appeal against New Jersey in Third Circuit

https://www.dopaminemarkets.com/p/prediction-markets-vs-states-the
1•astorplace•7m ago•0 comments

Show HN: A bespoke magazine for the kid in your life

https://www.juiceboxjournal.com/
1•easymode•9m ago•0 comments

Show HN: Clickly – tool for designers and engineers to build mobile apps

https://clickly.app
1•roskoalexey•15m ago•0 comments

Show HN: Next Moca – control plane for AI agents (pre-seed @ $10M)

https://www.nextmoca.com
1•swanandrao•15m ago•0 comments

Matrix-Kernel-Root

https://github.com/M2KR4R/matrix-kernel-root
1•M2KR4R•16m ago•0 comments

Um método informático para crianças feito com amor

https://www.amazon.com.br/dp/B0DN62YNJF
3•Hanoverdoes•18m ago•1 comments

Anthropic, OpenAI and Google sharing Intel to block Chinese distillation

https://www.bloomberg.com/news/articles/2026-04-06/openai-anthropic-google-unite-to-combat-model-...
2•nikcub•18m ago•0 comments

Building a DIY OpenClaw

https://ben.page/claude-mac
1•j03b•19m ago•0 comments

Bernie Sanders: "AI Is a Threat to Everything the American People Hold Dear"

https://www.wsj.com/opinion/ai-is-a-threat-to-everything-the-american-people-hold-dear-a3286459
4•fortran77•20m ago•3 comments

Real-time tracker for NASA's Artemis II Moon mission

https://artemis.fyi/
1•jsk2600•21m ago•0 comments

GitHub Copilot CLI combines model families for a second opinion

https://github.blog/ai-and-ml/github-copilot/github-copilot-cli-combines-model-families-for-a-sec...
1•salkahfi•22m ago•0 comments

Show HN: CacheZero – Karpathy's LLM wiki idea as one NPM install

1•swarajbachu•25m ago•0 comments

Anthropic expands partnership w Google and Broadcom for multiple GW of compute

https://www.anthropic.com/news/google-broadcom-partnership-compute
1•l1n•26m ago•0 comments

Optimizing Time, Cost, and Generalization in Distributed Large-Batch Training

https://arxiv.org/abs/2603.18112
1•PaulHoule•27m ago•0 comments

PrismML – Announcing 1-bit Bonsai: The First Commercially Viable 1-bit LLMs

https://prismml.com/news/bonsai-8b
1•janandonly•28m ago•0 comments

Zed: A sans for the needs of the 21st century

https://www.typotheque.com/blog/zed-a-sans-for-the-needs-of-21century
1•kaitak•28m ago•0 comments

Show HN: Hippo, biologically inspired memory for AI agents

https://github.com/kitfunso/hippo-memory
5•kitfunso•28m ago•1 comments

An In-Depth Study of Filter-Agnostic Vector Search on PostgreSQL

https://arxiv.org/abs/2603.23710
1•tanelpoder•29m ago•0 comments

Ormah: A living memory layer for your agents. Local. Private. Portable

https://www.ormah.me/
1•r_spade•32m ago•0 comments

Why Are People Injecting Themselves with Peptides?

https://www.newyorker.com/magazine/2026/04/13/why-are-people-injecting-themselves-with-peptides
1•bookofjoe•32m ago•1 comments

Show HN: Luminus, real-time European and UK electricity grid data via MCP

https://github.com/kitfunso/luminus
1•kitfunso•32m ago•0 comments

The Aesthetics of the Japanese Lunchbox by Kenji Ekuan (Book)

https://mitpress.mit.edu/9780262550352/the-aesthetics-of-the-japanese-lunchbox/
1•xbar•40m ago•1 comments

Bitcoin developers are mostly not concerned about quantum risk

https://murmurationstwo.substack.com/p/bitcoin-developers-are-mostly-not
1•greyface-•40m ago•0 comments

Follow-up from Anthropic on usage limits

https://old.reddit.com/r/ClaudeAI/comments/1sat07y/followup_on_usage_limits/
1•Austin_Conlon•41m ago•0 comments

Ask HN: How do you handle marketing as a solo technical founder?

4•lazarkap•41m ago•1 comments

Show HN: Bypass Instagram/TikTok in-app browsers that silently kill conversions

https://nullmark.tech/
1•melvinmorina•41m ago•0 comments