---
format: "aidr-story-markdown/v1"
id: "452d8360d69bcf1f20947905a2aaa84cd67729b1fbb243e1816afb3dc9d54988"
canonical_url: "https://aidr.today/452d8360?lang=en"
title: "Astra and Claude Help Solve 11 Squares Packing in Lean"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-06T17:23:38.000Z"
category: "Research"
topics: ["anthropic","llm"]
source_urls: ["https://huggingnews.com/ai/astra-and-claude-help-solve-11-squares-packing-in-lean-76c3c0fb","https://marketbrief.now/ai/astra-and-claude-help-solve-11-squares-packing-in-lean-76c3c0fb"]
summary: "A team of mathematics researchers used the automated theorem prover Lean with AI models Astra and Claude to formally verify the optimal packing of 11 squares, completing a long-term resolution of the geometry puzzle."
---

# Astra and Claude Help Solve 11 Squares Packing in Lean

> [Open the canonical story](<https://aidr.today/452d8360?lang=en>)

**Published:** 2026-10-06T17:23:38.000Z
**Category:** Research
**Topics:** anthropic, llm

## Summary

A team of mathematics researchers used the automated theorem prover Lean with AI models Astra and Claude to formally verify the optimal packing of 11 squares, completing a long\-term resolution of the geometry puzzle\.

## Sources

- [Story source](<https://huggingnews.com/ai/astra-and-claude-help-solve-11-squares-packing-in-lean-76c3c0fb>)
- [Story source](<https://marketbrief.now/ai/astra-and-claude-help-solve-11-squares-packing-in-lean-76c3c0fb>)