{"id":33308,"date":"2025-07-04T00:00:54","date_gmt":"2025-07-04T07:00:54","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=33308"},"modified":"2025-07-05T06:48:47","modified_gmt":"2025-07-05T13:48:47","slug":"one-way-border-sudoku-by-clover","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/","title":{"rendered":"One-Way Border Sudoku by clover!"},"content":{"rendered":"<p><em>This post is part of the <a href=\"https:\/\/www.gmpuzzles.com\/blog\/tag\/gas\/\">Genuinely Approachable Sudoku (GAS)<\/a> series.<\/em><br \/>\n<em>While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?<\/em><\/p>\n<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png\" alt=\"One-Way Border Sudoku by Clover\" \/><\/p>\n<p align=\"center\"><a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.pdf\">PDF<\/a><\/p>\n<p>or <a href=\"https:\/\/gmpuzzles.com\/s\/250704OneW\">solve online<\/a> (using SudokuPad)<\/p>\n<p><b>Author\/Opus:<\/b> This is the 31st puzzle from Clover, part of the Genuinely Approachable Sudoku (<a href=\"https:\/\/sudokutheory.com\/gas\/\">GAS<\/a>) team.<\/p>\n<p><b>Rules:<\/b> Standard Sudoku rules (insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region). Also, when considering the borders between two adjacent 3&#215;3 regions, on one side all three numbers must be less than their direct neighbors across the border. (In other words, if adding < or > symbols to the three edges between adjacent regions, the three symbols must all point the same way.)<\/p>\n<p><b>GAS Time Standards (highlight to view):<\/b> Two party hats (\ud83c\udfa9\ud83e\udd73): <span style=\"color: white; background-color: white;\">6:00<\/span>; One party hat (\ud83e\udd73): <span style=\"color: white; background-color: white;\">11:00<\/span>. All other solvers earn a \ud83e\udd95: <span style=\"color: white; background-color: white;\">consistent Condorraptor<\/span>.<\/p>\n<p><b>Thomas Hits the GAS (highlight to view): <\/b> <span style=\"color: white; background-color: white;\">3:01<\/span>, with <a href=https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/sudokupad-clover-Border_Crossing-a866-d182.replay>SudokuPad replay file<\/a> shared as a download for now (requires loading via settings menu with improvements expected before people should use this regularly).<\/p>\n<p><b>Solution:<\/b> <a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku-soln.pdf\">PDF<\/a> and <a href=\"https:\/\/youtu.be\/e-gd3AgXJ3s\">solving video<\/a> with explanation from GAS team.<\/p>\n<p><b>Note:<\/b> Follow this link for other less common variations of <a href=\"https:\/\/www.gmpuzzles.com\/blog\/tag\/sudoku-3+variation-2\/\">Sudoku<\/a>.<\/p>\n<p><b>Note 2:<\/b>\u00a0Comments on the blog are great! For a more interactive discussion, please also consider using our\u00a0<a href=\"https:\/\/discord.com\/channels\/1059513302847336469\/1380897111599616020\">Daily GAS discussion<\/a>\u00a0post\u00a0on the GMPuzzles Discord. Not a member of the Discord? Click\u00a0<a href=\"https:\/\/discord.gg\/RNNfEBEbQS\">this link<\/a>\u00a0for basic access.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This post is part of the Genuinely Approachable Sudoku (GAS) series. While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution? PDF or solve online (using SudokuPad) Author\/Opus: This is the 31st puzzle from Clover, part of the Genuinely Approachable Sudoku [&hellip;]<\/p>\n","protected":false},"author":444,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,126],"tags":[8,15,56,237],"class_list":["post-33308","post","type-post","status-publish","format-standard","hentry","category-puzzle","category-othersudoku","tag-sudoku-3","tag-wednesdaythursday","tag-variation-2","tag-gas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>One-Way Border Sudoku by clover! - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"One-Way Border Sudoku by clover! - The Art of Puzzles\" \/>\n<meta property=\"og:description\" content=\"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/\" \/>\n<meta property=\"og:site_name\" content=\"The Art of Puzzles\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-04T07:00:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-05T13:48:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png\" \/>\n<meta name=\"author\" content=\"Clover\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@drsudoku\" \/>\n<meta name=\"twitter:site\" content=\"@drsudoku\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Clover\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/\"},\"author\":{\"name\":\"Clover\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/18e8374ccaf31b1bfa1dc36c28c5c56d\"},\"headline\":\"One-Way Border Sudoku by clover!\",\"datePublished\":\"2025-07-04T07:00:54+00:00\",\"dateModified\":\"2025-07-05T13:48:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/\"},\"wordCount\":244,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250704-OneWayBorderSudoku.png\",\"keywords\":[\"sudoku\",\"wed\\\/thurs\",\"variation\",\"gas\"],\"articleSection\":[\"Puzzle\",\"Other Sudoku\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/\",\"name\":\"One-Way Border Sudoku by clover! - The Art of Puzzles\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250704-OneWayBorderSudoku.png\",\"datePublished\":\"2025-07-04T07:00:54+00:00\",\"dateModified\":\"2025-07-05T13:48:47+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/18e8374ccaf31b1bfa1dc36c28c5c56d\"},\"description\":\"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250704-OneWayBorderSudoku.png\",\"contentUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250704-OneWayBorderSudoku.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/07\\\/one-way-border-sudoku-by-clover\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"One-Way Border Sudoku by clover!\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/\",\"name\":\"The Art of Puzzles\",\"description\":\"Grandmaster Puzzles\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/18e8374ccaf31b1bfa1dc36c28c5c56d\",\"name\":\"Clover\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g\",\"caption\":\"Clover\"},\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/author\\\/clover\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"One-Way Border Sudoku by clover! - The Art of Puzzles","description":"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/","og_locale":"en_US","og_type":"article","og_title":"One-Way Border Sudoku by clover! - The Art of Puzzles","og_description":"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?","og_url":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/","og_site_name":"The Art of Puzzles","article_published_time":"2025-07-04T07:00:54+00:00","article_modified_time":"2025-07-05T13:48:47+00:00","og_image":[{"url":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png","type":"","width":"","height":""}],"author":"Clover","twitter_card":"summary_large_image","twitter_creator":"@drsudoku","twitter_site":"@drsudoku","twitter_misc":{"Written by":"Clover","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#article","isPartOf":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/"},"author":{"name":"Clover","@id":"https:\/\/www.gmpuzzles.com\/blog\/#\/schema\/person\/18e8374ccaf31b1bfa1dc36c28c5c56d"},"headline":"One-Way Border Sudoku by clover!","datePublished":"2025-07-04T07:00:54+00:00","dateModified":"2025-07-05T13:48:47+00:00","mainEntityOfPage":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/"},"wordCount":244,"commentCount":0,"image":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png","keywords":["sudoku","wed\/thurs","variation","gas"],"articleSection":["Puzzle","Other Sudoku"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/","url":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/","name":"One-Way Border Sudoku by clover! - The Art of Puzzles","isPartOf":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#primaryimage"},"image":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png","datePublished":"2025-07-04T07:00:54+00:00","dateModified":"2025-07-05T13:48:47+00:00","author":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/#\/schema\/person\/18e8374ccaf31b1bfa1dc36c28c5c56d"},"description":"While this Sudoku looks like a proper classic, a special rule applies along each border between regions. Can you still find the one solution?","breadcrumb":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#primaryimage","url":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png","contentUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250704-OneWayBorderSudoku.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/07\/one-way-border-sudoku-by-clover\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.gmpuzzles.com\/blog\/"},{"@type":"ListItem","position":2,"name":"One-Way Border Sudoku by clover!"}]},{"@type":"WebSite","@id":"https:\/\/www.gmpuzzles.com\/blog\/#website","url":"https:\/\/www.gmpuzzles.com\/blog\/","name":"The Art of Puzzles","description":"Grandmaster Puzzles","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.gmpuzzles.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.gmpuzzles.com\/blog\/#\/schema\/person\/18e8374ccaf31b1bfa1dc36c28c5c56d","name":"Clover","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/f13415f99fbfe56782538f36a02829b51ec31e58312ac076d809c72d6d0e3ab4?s=96&d=mm&r=g","caption":"Clover"},"url":"https:\/\/www.gmpuzzles.com\/blog\/author\/clover\/"}]}},"_links":{"self":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts\/33308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/users\/444"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/comments?post=33308"}],"version-history":[{"count":2,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts\/33308\/revisions"}],"predecessor-version":[{"id":33320,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts\/33308\/revisions\/33320"}],"wp:attachment":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/media?parent=33308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/categories?post=33308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/tags?post=33308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}