{"id":35735,"date":"2026-05-18T00:00:50","date_gmt":"2026-05-18T07:00:50","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=35735"},"modified":"2026-05-17T19:36:27","modified_gmt":"2026-05-18T02:36:27","slug":"x-sums-sudoku-by-philip-newman","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2026\/05\/x-sums-sudoku-by-philip-newman\/","title":{"rendered":"X-Sums Sudoku by Philip Newman"},"content":{"rendered":"<p>(This post is part of the <a href='https:\/\/www.gmpuzzles.com\/blog\/tag\/gas\/'>Genuinely Approachable Sudoku (GAS)<\/a> series.)<br \/>\n<em>Today&#8217;s X-Sums Sudoku features only double-digit totals. (What? The 1s are doubled!)<\/em><\/p>\n<p align='center'><img src='https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/260518-XSumsSudoku-DoubleDigits.png' alt='X-Sums Sudoku by Philip Newman' \/><\/p>\n<p align='center'><a href='https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/260518-XSumsSudoku-DoubleDigits.pdf'>PDF<\/a><\/p>\n<p>or <a href='https:\/\/www.gmpuzzles.com\/s\/260518Doub'>solve online<\/a> (using SudokuPad)<\/p>\n<p><b>Theme:<\/b> Double Digits<\/p>\n<p><b>Author\/Opus:<\/b> This is the 118th puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (<a href='https:\/\/sudokutheory.com\/gas\/'>GAS<\/a>) team.<\/p>\n<p><b>Rules:<\/b> Standard <a href='https:\/\/www.gmpuzzles.com\/blog\/sudoku-rules-and-info\/'>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). Also, the clues outside the grid indicate the sum of the first X numbers placed in the corresponding direction, where X is equal to the first number placed in that direction (e.g., if R9C1 is 3, then the three numbers in R9C1 (i.e., 3) and R8C1 and R7C1 all add up to 17).<\/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'>7:00<\/span>; One party hat (\ud83e\udd73): <span style='color: white;background-color: white'>13:00<\/span>. All other solvers earn a \ud83e\udd95: <span style='color: white;background-color: white'>Impish Inawentu<\/span>.<\/p>\n<p><b>Thomas Hits the GAS (highlight to view):<\/b> <span style='color: white;background-color: white'>3:29<\/span>, with <a href='https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/sudokupad-Philip_New-2026_05_18_Double_Digits-a1030-d210.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\/puzzles2026\/260518-XSumsSudoku-DoubleDigits-soln.pdf'>PDF<\/a>; solving video with explanation to be added later 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> Comments on the blog are great! For a more interactive discussion, please also consider using our <a href='https:\/\/discord.com\/channels\/1059513302847336469\/1380897111599616020'>Daily GAS discussion<\/a> post on the GMPuzzles Discord. Not a member of the Discord? Click <a href='https:\/\/discord.gg\/RNNfEBEbQS'>this link<\/a> for basic access.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(This post is part of the Genuinely Approachable Sudoku (GAS) series.) Today&#8217;s X-Sums Sudoku features only double-digit totals. (What? The 1s are doubled!) PDF or solve online (using SudokuPad) Theme: Double Digits Author\/Opus: This is the 118th puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS) team. Rules: Standard Sudoku rules (insert a [&hellip;]<\/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-35735","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 v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>X-Sums Sudoku by Philip Newman - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"Today&#039;s X-Sums Sudoku features only double-digit totals. (What? The 1s are doubled!)\" \/>\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\/2026\/05\/x-sums-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=\"X-Sums Sudoku by Philip Newman - The Art of Puzzles\" \/>\n<meta property=\"og:description\" content=\"Today&#039;s X-Sums Sudoku features only double-digit totals. (What? 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