{"id":33682,"date":"2025-08-05T00:00:21","date_gmt":"2025-08-05T07:00:21","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=33682"},"modified":"2025-08-22T08:52:49","modified_gmt":"2025-08-22T15:52:49","slug":"disparity-sudoku-by-philip-newman","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/08\/disparity-sudoku-by-philip-newman\/","title":{"rendered":"Disparity Sudoku by Philip Newman"},"content":{"rendered":"

(This post is part of the Genuinely Approachable Sudoku (GAS)<\/a> series.)
\nFollowing Philip’s last “Irregular” Sudoku, this puzzle requires having an even and odd number on opposite sides of each bold boundary, making a more challenging variation until you plan for the disparities.<\/em><\/p>\n

\"Disparity<\/p>\n

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

or solve online<\/a> (using SudokuPad)<\/p>\n

Author\/Opus:<\/b> This is the 23rd puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS<\/a>) team.<\/p>\n

Rules:<\/b> Standard Sudoku<\/a> rules: Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region. Across the bold region boundaries, the numbers must be of opposite parity (i.e., even on one side and odd on the other). For example in this puzzle: if R1C6 is odd, R1C7 must be even. If R1C6 is even, R1C7 must be odd.<\/p>\n

GAS Time Standards (highlight to view):<\/b> Two party hats (\ud83c\udfa9\ud83e\udd73): 8:30<\/span>; One party hat (\ud83e\udd73): 18:00<\/span>. All other solvers earn a \ud83e\udd95: August Aepysaurus<\/span>.<\/p>\n

Thomas Hits the GAS (highlight to view):<\/b> 5:08 on an earlier grid with four fewer givens<\/span>, with 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

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

Note:<\/b> Follow this link for other classic Sudoku<\/a>. If you are new to this puzzle type, here are our easiest Sudoku<\/a> to get started on. More Sudoku including variations can be found in these books<\/a> in our e-store. Also, visit this page to purchase all of the puzzles from the\u00a016th World Sudoku Championship<\/a> including classic Sudoku.<\/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.) Following Philip’s last “Irregular” Sudoku, this puzzle requires having an even and odd number on opposite sides of each bold boundary, making a more challenging variation until you plan for the disparities. PDF or solve online (using SudokuPad) Author\/Opus: This is the 23rd puzzle […]<\/p>\n","protected":false},"author":442,"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-33682","post","type-post","status-publish","format-standard","hentry","category-puzzle","category-othersudoku","tag-sudoku-3","tag-wednesdaythursday","tag-variation-2","tag-gas"],"yoast_head":"\nDisparity Sudoku by Philip Newman - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"This irregular Sudoku requires having an even and odd number on opposite sides of each bold boundary, making a challenging variation.\" \/>\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\/disparity-sudoku-by-philip-newman\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Disparity Sudoku by Philip Newman - 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