{"id":25902773,"url":"https://github.com/scriptraccoon/pentomino-tilings","last_synced_at":"2026-06-09T10:31:51.216Z","repository":{"id":206782860,"uuid":"717324407","full_name":"ScriptRaccoon/pentomino-tilings","owner":"ScriptRaccoon","description":"Computation and Visualization of Pentomino Tilings","archived":false,"fork":false,"pushed_at":"2024-01-26T00:04:46.000Z","size":508,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-11-30T08:59:45.265Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"https://pentomino-tilings.netlify.app","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/ScriptRaccoon.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2023-11-11T05:44:36.000Z","updated_at":"2023-11-12T09:07:27.000Z","dependencies_parsed_at":"2023-11-12T10:22:24.408Z","dependency_job_id":"fdb40cdb-460c-4b05-bfe1-2e96fa416527","html_url":"https://github.com/ScriptRaccoon/pentomino-tilings","commit_stats":null,"previous_names":["scriptraccoon/pentomino-tilings"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/ScriptRaccoon/pentomino-tilings","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ScriptRaccoon%2Fpentomino-tilings","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ScriptRaccoon%2Fpentomino-tilings/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ScriptRaccoon%2Fpentomino-tilings/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ScriptRaccoon%2Fpentomino-tilings/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ScriptRaccoon","download_url":"https://codeload.github.com/ScriptRaccoon/pentomino-tilings/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ScriptRaccoon%2Fpentomino-tilings/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":34103355,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-06-09T02:00:06.510Z","response_time":63,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-03-03T03:17:20.036Z","updated_at":"2026-06-09T10:31:51.198Z","avatar_url":"https://github.com/ScriptRaccoon.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Exact cover problem and pentomino tilings\n\nThe [pentomino](https://en.wikipedia.org/wiki/Pentomino) tilings of a rectangle, where every one of the 12 pentominoes appears exactly one, can be interpreted as an [exact cover problem](https://en.wikipedia.org/wiki/Exact_cover) and hence enumerated with [Knuth's algorithm](https://en.wikipedia.org/wiki/Knuth%27s_Algorithm_X). This repository contains\n\n-   a Python implementation of this algorithm (see `/scripts`, the results are written to `/public/data`)\n-   a visualization of these made with Svelte, which is deployed at https://pentomino-tilings.netlify.app\n\nThe exact cover algorithm in `exactcover.py` may not be optimized, but the code is incredibly short because we use Python sets (not incidence matrices) and generators - we don't need the usual \"select and deselect\" step.\n\n![Screenshot](public/screenshot.jpg)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fscriptraccoon%2Fpentomino-tilings","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fscriptraccoon%2Fpentomino-tilings","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fscriptraccoon%2Fpentomino-tilings/lists"}