{"id":35281,"date":"2026-03-08T00:00:56","date_gmt":"2026-03-08T08:00:56","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=35281"},"modified":"2026-03-15T09:13:01","modified_gmt":"2026-03-15T16:13:01","slug":"zipper-lines-sudoku-by-bill-murphy-2","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2026\/03\/zipper-lines-sudoku-by-bill-murphy-2\/","title":{"rendered":"Zipper Lines Sudoku by Bill Murphy"},"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>This W (or M) pattern reappears but now with a different rule zipping everything together with a key sum value tied to the center cell.<\/em><\/p>\n<p align=\"center\"><img src=https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/260308-ZipperLinesSudoku-WIsForWumbo.png alt=\"Zipper Lines Sudoku by Bill Murphy\" \/><\/p>\n<p align=\"center\"><a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/260308-ZipperLinesSudoku-WIsForWumbo.pdf\">PDF<\/a><\/p>\n<p>or <a href=\"https:\/\/gmpuzzles.com\/s\/260308Wisf\">solve online<\/a> (using SudokuPad)<\/p>\n<p><b>Theme:<\/b> W is for Wumbo<\/p>\n<p><b>Author\/Opus:<\/b> This is the 92nd puzzle from Bill Murphy, part of the Genuinely Approachable Sudoku (<a href=\"https:\/\/sudokutheory.com\/gas\/\">GAS<\/a>) team.<\/p>\n<p><b>Rules:<\/b> Standard Sudoku rules (insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region). For each line, the numbers in each pair of cells an equal distance away from the center of the line must sum up to the value in the central cell of the line. (For example, R2C4 + R3C3 = R2C3 = 5 from the Zipper Lines rule.)<\/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;\">Mermaidman&#8217;s Machairasaurus<\/span>.<\/p>\n<p><b>Thomas Hits the GAS (highlight to view):<\/b> <span style=\"color: white; background-color: white;\">3:08<\/span>, with <a href=https:\/\/www.gmpuzzles.com\/images\/puzzles2026\/sudokupad-Bill_Murph-W_is_for_Wumbo-a918-d189.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\/260308-ZipperLinesSudoku-WIsForWumbo-soln.pdf\">PDF<\/a> and <a href='https:\/\/youtu.be\/82rocraB_Y4'>solving video<\/a> with explanation 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>\u00a0Comments on the blog are great! For a more interactive discussion, please also consider using our\u00a0<a href=\"https:\/\/discord.com\/channels\/1059513302847336469\/1380897111599616020\">Daily GAS discussion<\/a>\u00a0post\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 post is part of the Genuinely Approachable Sudoku (GAS) series.) This W (or M) pattern reappears but now with a different rule zipping everything together with a key sum value tied to the center cell. PDF or solve online (using SudokuPad) Theme: W is for Wumbo Author\/Opus: This is the 92nd puzzle from Bill [&hellip;]<\/p>\n","protected":false},"author":443,"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-35281","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 v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Zipper Lines Sudoku by Bill Murphy - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"This W (or M) pattern reappears but now with a different rule zipping everything together with a key sum value tied to the center cell.\" \/>\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\/03\/zipper-lines-sudoku-by-bill-murphy-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zipper Lines Sudoku by Bill Murphy - 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