{"id":32787,"date":"2025-06-05T09:05:05","date_gmt":"2025-06-05T16:05:05","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=32787"},"modified":"2025-06-02T07:25:26","modified_gmt":"2025-06-02T14:25:26","slug":"just-one-cell-classic-sudoku-by-thomas-snyder-11","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/06\/just-one-cell-classic-sudoku-by-thomas-snyder-11\/","title":{"rendered":"Just One Cell Classic Sudoku by Thomas Snyder"},"content":{"rendered":"<p><i>This second and last puzzle for today was the second Classic puzzle in the Finals.<\/i><\/p>\n<p align=\"center\"><img src=https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250605F2-JOCClassicSudoku.png alt=\"Just One Cell Classic Sudoku by Thomas Snyder\" \/><\/p>\n<p align=\"center\"><a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250605F2-JOCClassicSudoku.pdf\">PDF<\/a><\/p>\n<p>or <a href=\"https:\/\/gmpuzzles.com\/s\/250605FCl2\">solve online in Penpa<\/a>, or also <a href=\"https:\/\/sudokupad.app\/he2svlre19\">solve online in SudokuPad as a new option<\/a> (note: highly recommended to turn off &#8220;Mark Solved Digits&#8221; option if you use that in SudokuPad).<\/p>\n<p><b>Author\/Opus:<\/b> This is the 576th puzzle from Thomas Snyder, aka Dr. Sudoku.<\/p>\n<p><b>Rules:<\/b> This Sudoku does not have a unique solution for the full grid (it actually has a large number of solutions), but there is exactly one cell in which a number can be logically placed that is fixed across all solutions. Find this cell and its unique value.<\/p>\n<p>This puzzle follows Classic Sudoku rules, so no number repeats in any row, column, or bold region.<\/p>\n<p><b>Time Standards:<\/b> This competition had 1-point (easy), 2-point (medium), 3-point (hard), or higher value puzzles. This would have been <span style=\"color: white; background-color: white;\">3 points (hard category), roughly 2.5-3 minute target<\/span>.<\/p>\n<p><b>Solution:<\/b> <a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2025\/250605F2-JOCClassicSudoku-soln.pdf\">PDF<\/a><\/p>\n<p><b>Note:<\/b> Follow this link for other <a href=\"https:\/\/www.gmpuzzles.com\/blog\/tag\/justonecellsudoku\/\">Just One Cell 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\/1373740902815760424\/1373740902815760424\">Just One Cell Sudoku Discussion post<\/a>\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 second and last puzzle for today was the second Classic puzzle in the Finals. PDF or solve online in Penpa, or also solve online in SudokuPad as a new option (note: highly recommended to turn off &#8220;Mark Solved Digits&#8221; option if you use that in SudokuPad). Author\/Opus: This is the 576th puzzle from Thomas [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[236,3],"tags":[235],"class_list":["post-32787","post","type-post","status-publish","format-standard","hentry","category-just-one-cell-sudoku","category-puzzle","tag-justonecellsudoku"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Just One Cell Classic Sudoku by Thomas Snyder - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"This Just One Cell Sudoku challenges you to find one uniquely determinable cell by sudoku logic. Originally part of SudokuCon in 2025.\" \/>\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\/06\/just-one-cell-classic-sudoku-by-thomas-snyder-11\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Just One Cell Classic Sudoku by Thomas Snyder - The Art of Puzzles\" \/>\n<meta property=\"og:description\" content=\"This Just One Cell Sudoku challenges you to find one uniquely determinable cell by sudoku logic. Originally part of SudokuCon in 2025.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gmpuzzles.com\/blog\/2025\/06\/just-one-cell-classic-sudoku-by-thomas-snyder-11\/\" \/>\n<meta property=\"og:site_name\" content=\"The Art of Puzzles\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-05T16:05:05+00:00\" \/>\n<meta name=\"author\" content=\"drsudoku\" \/>\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=\"drsudoku\" \/>\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\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/\"},\"author\":{\"name\":\"drsudoku\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/16f28006b2b31c98ce6d8d1affd60275\"},\"headline\":\"Just One Cell Classic Sudoku by Thomas Snyder\",\"datePublished\":\"2025-06-05T16:05:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/\"},\"wordCount\":210,\"commentCount\":1,\"keywords\":[\"justonecellsudoku\"],\"articleSection\":[\"Just One Cell Sudoku\",\"Puzzle\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/\",\"url\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/2025\\\/06\\\/just-one-cell-classic-sudoku-by-thomas-snyder-11\\\/\",\"name\":\"Just One Cell Classic Sudoku by Thomas Snyder - The Art of Puzzles\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#website\"},\"datePublished\":\"2025-06-05T16:05:05+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.gmpuzzles.com\\\/blog\\\/#\\\/schema\\\/person\\\/16f28006b2b31c98ce6d8d1affd60275\"},\"description\":\"This Just One Cell Sudoku challenges you to find one uniquely determinable cell by sudoku logic. 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