{"id":23897703,"url":"https://github.com/omerkel/eulersquare","last_synced_at":"2026-02-28T02:02:56.717Z","repository":{"id":9254668,"uuid":"11078804","full_name":"OMerkel/eulersquare","owner":"OMerkel","description":"Leonhard Euler's Magic Square","archived":false,"fork":false,"pushed_at":"2020-01-04T21:12:41.000Z","size":3734,"stargazers_count":4,"open_issues_count":0,"forks_count":1,"subscribers_count":5,"default_branch":"master","last_synced_at":"2025-01-04T17:17:12.390Z","etag":null,"topics":["demonstrator","education","educational-game","entertainment","magic-square","mathematics","mobile","mobile-app","mobile-game","puzzle","puzzle-game","single-player-game","solitaire","solitaire-game"],"latest_commit_sha":null,"homepage":"http://omerkel.github.io/eulersquare/html5/src","language":"HTML","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/OMerkel.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}},"created_at":"2013-06-30T22:19:34.000Z","updated_at":"2023-02-15T21:54:43.000Z","dependencies_parsed_at":"2022-09-01T03:51:32.626Z","dependency_job_id":null,"html_url":"https://github.com/OMerkel/eulersquare","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OMerkel%2Feulersquare","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OMerkel%2Feulersquare/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OMerkel%2Feulersquare/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/OMerkel%2Feulersquare/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/OMerkel","download_url":"https://codeload.github.com/OMerkel/eulersquare/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":240286510,"owners_count":19777354,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":["demonstrator","education","educational-game","entertainment","magic-square","mathematics","mobile","mobile-app","mobile-game","puzzle","puzzle-game","single-player-game","solitaire","solitaire-game"],"created_at":"2025-01-04T17:17:16.214Z","updated_at":"2025-11-14T02:01:33.321Z","avatar_url":"https://github.com/OMerkel.png","language":"HTML","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003cimg alt=\"Euler Square icon\" width=\"64\" src=\"html5/src/img/icons/euler-64.png\" /\u003e Euler Square\n====================\n\nLeonhard Euler's Magic Square\n\n* \u003cem\u003eStart an\u003c/em\u003e \u003cb\u003eEuler Square\u003c/b\u003e \u003cem\u003esolitaire game and solve the puzzle on your own at\u003c/em\u003e\n    * http://omerkel.github.io/eulersquare/html5/src\n    * http://omerkel.github.io/eulersquare/html5/src/index_de.html (German language)\n\n__Keywords:__ _Leonhard Euler, Euler Square, Euler'sches Quadrat,\nMagic Square, Graeco-Latin square, Griechisch-Lateinisches Quadrat,\nJavascript, Firefox OS, Geeksphone, Mobile device,\nCatherine the Great, Katharina die Gro\u0026szlig;e, 36 officers problem,\nthirty-six officers problem, Albrecht D\u0026uuml;rer, Melencolia \u0026sect; I_\n\nTo get more detailed background information visit the\ninfo page while Euler Square puzzle is running.\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg width=\"100%\" ondragstart=\"return false;\" alt=\"Application as installed in FirefoxOS (B2G), own work, Oliver Merkel, Creative Commons Attribution-Share Alike license\" src=\"doc/img/eulerb2g.png\" /\u003e\u003c/td\u003e\n\u003ctd\u003e\u003cimg width=\"100%\" ondragstart=\"return false;\" alt=\"Euler Square application showing gameplay in MS IE10 on Win8 desktop instead of smaller resolution device, own work, Oliver Merkel, Creative Commons License, This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.\" src=\"doc/img/euler_ie10gameplay.png\" /\u003e\u003c/td\u003e\n\u003c/tr\u003e\u003ctr\u003e\n\u003ctd\u003eApplication as installed in FirefoxOS (B2G), own work, Oliver Merkel,\u003cbr /\u003e\u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003e\u003cimg alt=\"Creative Commons License\" style=\"border-width:0\" src=\"http://i.creativecommons.org/l/by-sa/3.0/88x31.png\" /\u003e\u003c/a\u003e\u003cbr /\u003eThis work is licensed under a \u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003eCreative Commons Attribution-ShareAlike 3.0 Unported License\u003c/a\u003e.\u003c/td\u003e\n\u003ctd\u003eEuler Square application showing gameplay in MS IE10 on Win8 desktop instead of smaller resolution device, own work, Oliver Merkel,\u003cbr /\u003e\u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003e\u003cimg alt=\"Creative Commons License\" style=\"border-width:0\" src=\"http://i.creativecommons.org/l/by-sa/3.0/88x31.png\" /\u003e\u003c/a\u003e\u003cbr /\u003eThis work is licensed under a \u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003eCreative Commons Attribution-ShareAlike 3.0 Unported License\u003c/a\u003e.\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/table\u003e\n\nBeware: Spoiler\n===============\n\nIf you still plan to solve the Euler Square puzzle on your own from scratch then do not look too closely onto the next screenshots.\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg width=\"100%\" ondragstart=\"return false;\" alt=\"Screenshot of an initial version of Euler Square in Firefox OS Simulator. This 10x10 Graeco-Latin Square has a valid 3x3 Graeco-Latin Square included, own work, Oliver Merkel, Creative Commons Attribution-Share Alike license\" src=\"doc/img/euler10b2g.png\" /\u003e\u003c/td\u003e\n\u003ctd\u003e\u003cimg width=\"100%\" ondragstart=\"return false;\" alt=\"Euler Square of order seven on a Geeksphone Peak mobile device, own work, Oliver Merkel, Creative Commons Attribution-Share Alike license\" src=\"doc/img/euler_square_7_geeksphone_peak.jpg\" /\u003e\u003c/td\u003e\n\u003c/tr\u003e\u003ctr\u003e\n\u003ctd\u003eScreenshot of an initial version of Euler Square in Firefox OS Simulator. This 10x10 Graeco-Latin Square has a valid 3x3 Graeco-Latin Square included, own work, Oliver Merkel,\u003cbr /\u003e\u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003e\u003cimg alt=\"Creative Commons License\" style=\"border-width:0\" src=\"http://i.creativecommons.org/l/by-sa/3.0/88x31.png\" /\u003e\u003c/a\u003e\u003cbr /\u003eThis work is licensed under a \u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003eCreative Commons Attribution-ShareAlike 3.0 Unported License\u003c/a\u003e.\u003c/td\u003e\n\u003ctd\u003eEuler Square of order seven on a Geeksphone Peak mobile device, own work, Oliver Merkel,\u003cbr /\u003e\u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003e\u003cimg alt=\"Creative Commons License\" style=\"border-width:0\" src=\"http://i.creativecommons.org/l/by-sa/3.0/88x31.png\" /\u003e\u003c/a\u003e\u003cbr /\u003eThis work is licensed under a \u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003eCreative Commons Attribution-ShareAlike 3.0 Unported License\u003c/a\u003e.\u003ctd\u003e\n\u003c/tr\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cimg width=\"100%\" ondragstart=\"return false;\" alt=\"Another 10x10 solution with tiles of same inner and outer color on long diagonal only, own work, Oliver Merkel, Creative Commons Attribution-Share Alike license\" src=\"doc/img/euler_another10x10.png\" /\u003e\u003c/td\u003e\n\u003c/tr\u003e\u003ctr\u003e\n\u003ctd\u003eAnother solution sized 10x10. This solution has tiles of same inner and outer color on long diagonal only, own work, Oliver Merkel,\u003cbr /\u003e\u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003e\u003cimg alt=\"Creative Commons License\" style=\"border-width:0\" src=\"http://i.creativecommons.org/l/by-sa/3.0/88x31.png\" /\u003e\u003c/a\u003e\u003cbr /\u003eThis work is licensed under a \u003ca rel=\"license\" href=\"http://creativecommons.org/licenses/by-sa/3.0\"\u003eCreative Commons Attribution-ShareAlike 3.0 Unported License\u003c/a\u003e.\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/table\u003e\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fomerkel%2Feulersquare","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fomerkel%2Feulersquare","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fomerkel%2Feulersquare/lists"}