{"id":13856,"date":"2021-01-01T07:00:23","date_gmt":"2021-01-01T15:00:23","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?page_id=13856"},"modified":"2022-01-15T08:05:26","modified_gmt":"2022-01-15T16:05:26","slug":"even-odd-sudoku-ri","status":"publish","type":"page","link":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/","title":{"rendered":"Even\/Odd Sudoku R&#038;I"},"content":{"rendered":"<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png\" alt=\"Example Even\/Odd Sudoku and solution\" width=\"500\"><\/p>\n<p><b>Rules:<\/b> Standard <a href=\"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\">Sudoku<\/a> rules (insert a number in the indicated range into each cell so that no number repeats in any row, column, or bold region). Also, cells with a square contain an even number; cells with a circle contain an odd number.<\/p>\n<p><b>Answer String:<\/b> Enter the row\/column marked &#8220;A&#8221;, followed by a comma, followed by the row\/column marked &#8220;B&#8221;. Rows are entered from left to right and columns from top to bottom. This example has the key &#8220;687345129,546791238&#8221;.<\/p>\n<p><b>(Brief) History of Even\/Odd Sudoku:<\/b> Descended from Sudoku, as a variation that includes number properties as additional limits in the cells.<\/p>\n<p><b>History of this example:<\/b> This Even\/Odd Sudoku &#8220;Ring Cycle&#8221; was written by Thomas Snyder for our Grandmaster Puzzles blog <a href=https:\/\/www.gmpuzzles.com\/blog\/2015\/01\/evenodd-sudoku-thomas-snyder-4\/>post on 1\/29\/2015<\/a>.<\/p>\n<p><b>Sources for Even\/Odd Sudoku:<\/b> Follow this link for <a href=\"https:\/\/www.gmpuzzles.com\/blog\/tag\/evenoddsudoku\/\">Even\/Odd Sudoku puzzles<\/a> on this website. If you are new to this puzzle type, here are our <a href=https:\/\/www.gmpuzzles.com\/blog\/tag\/evenoddsudoku+mondaytuesday\/>easiest Even\/Odd Sudoku<\/a> to get started on. More Even\/Odd Sudoku puzzles can be found in <a href=\"https:\/\/shop.gmpuzzles.com\/collections\/the-art-of-sudoku-2\"><i>The Art of Sudoku 2<\/i><\/a> and <a href=https:\/\/shop.gmpuzzles.com\/products\/masterpiece-sudoku-mix-1-even-odd-sudoku><i>Masterpiece Sudoku Mix 1<\/i><\/a>. <\/p>\n<p><b>Design rules for contributors:<\/b> A Grandmaster Even\/Odd Sudoku will have a unique solution that can be reached by logic alone. Generally, a Grandmaster Even\/Odd Sudoku has a symmetric layout of numbers and a symmetric or thematic layout of marked even\/odd cells in the grid.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rules: Standard Sudoku rules (insert a number in the indicated range into each cell so that no number repeats in any row, column, or bold region). Also, cells with a square contain an even number; cells with a circle contain an odd number. Answer String: Enter the row\/column marked &#8220;A&#8221;, followed by a comma, followed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":91,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-13856","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Even\/Odd Sudoku R&amp;I - The Art of Puzzles<\/title>\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\/sudoku-rules-and-info\/even-odd-sudoku-ri\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Even\/Odd Sudoku R&amp;I - The Art of Puzzles\" \/>\n<meta property=\"og:description\" content=\"Rules: Standard Sudoku rules (insert a number in the indicated range into each cell so that no number repeats in any row, column, or bold region). Also, cells with a square contain an even number; cells with a circle contain an odd number. Answer String: Enter the row\/column marked &#8220;A&#8221;, followed by a comma, followed [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/\" \/>\n<meta property=\"og:site_name\" content=\"The Art of Puzzles\" \/>\n<meta property=\"article:modified_time\" content=\"2022-01-15T16:05:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@drsudoku\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/\",\"name\":\"Even\\\/Odd Sudoku R&I - The Art of Puzzles\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/blog\\\/GM-EvenOddSudoku-Ex.png\",\"datePublished\":\"2021-01-01T15:00:23+00:00\",\"dateModified\":\"2022-01-15T16:05:26+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/blog\\\/GM-EvenOddSudoku-Ex.png\",\"contentUrl\":\"https:\\\/\\\/www.gmpuzzles.com\\\/images\\\/blog\\\/GM-EvenOddSudoku-Ex.png\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/even-odd-sudoku-ri\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sudoku Rules and Info\",\"item\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/sudoku-rules-and-info\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Even\\\/Odd Sudoku R&#038;I\"}]},{\"@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\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Even\/Odd Sudoku R&I - The Art of Puzzles","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\/sudoku-rules-and-info\/even-odd-sudoku-ri\/","og_locale":"en_US","og_type":"article","og_title":"Even\/Odd Sudoku R&I - The Art of Puzzles","og_description":"Rules: Standard Sudoku rules (insert a number in the indicated range into each cell so that no number repeats in any row, column, or bold region). Also, cells with a square contain an even number; cells with a circle contain an odd number. Answer String: Enter the row\/column marked &#8220;A&#8221;, followed by a comma, followed [&hellip;]","og_url":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/","og_site_name":"The Art of Puzzles","article_modified_time":"2022-01-15T16:05:26+00:00","og_image":[{"url":"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_site":"@drsudoku","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/","url":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/","name":"Even\/Odd Sudoku R&I - The Art of Puzzles","isPartOf":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/#primaryimage"},"image":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png","datePublished":"2021-01-01T15:00:23+00:00","dateModified":"2022-01-15T16:05:26+00:00","breadcrumb":{"@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/#primaryimage","url":"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png","contentUrl":"https:\/\/www.gmpuzzles.com\/images\/blog\/GM-EvenOddSudoku-Ex.png"},{"@type":"BreadcrumbList","@id":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/even-odd-sudoku-ri\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.gmpuzzles.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Sudoku Rules and Info","item":"https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/"},{"@type":"ListItem","position":3,"name":"Even\/Odd Sudoku R&#038;I"}]},{"@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"}]}},"_links":{"self":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/pages\/13856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/comments?post=13856"}],"version-history":[{"count":5,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/pages\/13856\/revisions"}],"predecessor-version":[{"id":19065,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/pages\/13856\/revisions\/19065"}],"up":[{"embeddable":true,"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/pages\/91"}],"wp:attachment":[{"href":"https:\/\/www.gmpuzzles.com\/blog\/wp-json\/wp\/v2\/media?parent=13856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}