{"id":33712,"date":"2025-08-06T00:00:21","date_gmt":"2025-08-06T07:00:21","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=33712"},"modified":"2025-08-07T17:10:11","modified_gmt":"2025-08-08T00:10:11","slug":"sum-nine-sudoku-by-clover","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/","title":{"rendered":"Sum Nine Sudoku by clover!"},"content":{"rendered":"

(This post is part of the Genuinely Approachable Sudoku (GAS)<\/a> series.)
\nIn this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way around the grid to the one solution?<\/em><\/p>\n

\"Sum<\/p>\n

PDF<\/a><\/p>\n

or solve online<\/a> (using SudokuPad)
\nor solve online<\/a> (using Penpa-Plus; originally posted as a backup)<\/p>\n

Author\/Opus:<\/b> This is the 42nd puzzle from Clover, part of the Genuinely Approachable Sudoku (GAS<\/a>) team.<\/p>\n

Rules:<\/b> Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region. Also, if a diamond is given between two adjacent cells, then the numbers in those cells must add to 9. (Note: not all diamonds are given; adjacent cells without a diamond may or may not add to another value than 9.)<\/p>\n

GAS Time Standards (highlight to view):<\/b> Two party hats (\ud83c\udfa9\ud83e\udd73): 6:00<\/span>; One party hat (\ud83e\udd73): 11:00<\/span>. All other solvers earn a \ud83e\udd95: nonogonal Nyasasaurus<\/span><\/span>.<\/p>\n

Thomas Hits the GAS (highlight to view):<\/b> 2:46<\/span>, with Penpa Plus replay<\/a> this time.<\/p>\n

Solution:<\/b> PDF<\/a> and solving video<\/a> with explanation from GAS team.<\/p>\n

Note:<\/b> Follow this link for other less common variations of Sudoku<\/a>.<\/p>\n

Note 2:<\/b>\u00a0Comments on the blog are great! For a more interactive discussion, please also consider using our\u00a0Daily GAS discussion<\/a>\u00a0post\u00a0on the GMPuzzles Discord. Not a member of the Discord? Click\u00a0this link<\/a>\u00a0for basic access.<\/p>\n","protected":false},"excerpt":{"rendered":"

(This post is part of the Genuinely Approachable Sudoku (GAS) series.) In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way around the grid to the one solution? PDF or solve online (using SudokuPad) or solve online (using Penpa-Plus; originally posted as a […]<\/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-33712","post","type-post","status-publish","format-standard","hentry","category-puzzle","category-othersudoku","tag-sudoku-3","tag-wednesdaythursday","tag-variation-2","tag-gas"],"yoast_head":"\nSum Nine Sudoku by clover! - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to 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\/08\/sum-nine-sudoku-by-clover\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sum Nine Sudoku by clover! - The Art of Puzzles\" \/>\n<meta property=\"og:description\" content=\"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to the one solution?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/\" \/>\n<meta property=\"og:site_name\" content=\"The Art of Puzzles\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-06T07:00:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-08T00:10:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.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\\\/08\\\/sum-nine-sudoku-by-clover\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/\"},\"author\":{\"name\":\"Clover\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/18e8374ccaf31b1bfa1dc36c28c5c56d\"},\"headline\":\"Sum Nine Sudoku by clover!\",\"datePublished\":\"2025-08-06T07:00:21+00:00\",\"dateModified\":\"2025-08-08T00:10:11+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/\"},\"wordCount\":228,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250806-SumNineSudoku.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\\\/08\\\/sum-nine-sudoku-by-clover\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/\",\"name\":\"Sum Nine Sudoku by clover! - The Art of Puzzles\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250806-SumNineSudoku.png\",\"datePublished\":\"2025-08-06T07:00:21+00:00\",\"dateModified\":\"2025-08-08T00:10:11+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/18e8374ccaf31b1bfa1dc36c28c5c56d\"},\"description\":\"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to the one solution?\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250806-SumNineSudoku.png\",\"contentUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/puzzles2025\\\/250806-SumNineSudoku.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/08\\\/sum-nine-sudoku-by-clover\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sum Nine 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":"Sum Nine Sudoku by clover! - The Art of Puzzles","description":"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to 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\/08\/sum-nine-sudoku-by-clover\/","og_locale":"en_US","og_type":"article","og_title":"Sum Nine Sudoku by clover! - The Art of Puzzles","og_description":"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to the one solution?","og_url":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/","og_site_name":"The Art of Puzzles","article_published_time":"2025-08-06T07:00:21+00:00","article_modified_time":"2025-08-08T00:10:11+00:00","og_image":[{"url":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.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\/08\/sum-nine-sudoku-by-clover\/#article","isPartOf":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/"},"author":{"name":"Clover","@id":"https:\/\/www.gmpuzzles.com\/blog\/#\/schema\/person\/18e8374ccaf31b1bfa1dc36c28c5c56d"},"headline":"Sum Nine Sudoku by clover!","datePublished":"2025-08-06T07:00:21+00:00","dateModified":"2025-08-08T00:10:11+00:00","mainEntityOfPage":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/"},"wordCount":228,"commentCount":0,"image":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.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\/08\/sum-nine-sudoku-by-clover\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/","url":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/","name":"Sum Nine Sudoku by clover! - The Art of Puzzles","isPartOf":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#primaryimage"},"image":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.png","datePublished":"2025-08-06T07:00:21+00:00","dateModified":"2025-08-08T00:10:11+00:00","author":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/#\/schema\/person\/18e8374ccaf31b1bfa1dc36c28c5c56d"},"description":"In this Sum Nine Sudoku, some pairs of cells that sum to nine are marked with diamonds. Can you find your way to the one solution?","breadcrumb":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#primaryimage","url":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.png","contentUrl":"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250806-SumNineSudoku.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/sum-nine-sudoku-by-clover\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.gmpuzzles.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Sum Nine 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\/33712","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=33712"}],"version-history":[{"count":5,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts\/33712\/revisions"}],"predecessor-version":[{"id":33771,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/posts\/33712\/revisions\/33771"}],"wp:attachment":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/media?parent=33712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/categories?post=33712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/tags?post=33712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}