{"id":34394,"date":"2025-10-28T00:00:12","date_gmt":"2025-10-28T07:00:12","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=34394"},"modified":"2025-10-31T06:17:15","modified_gmt":"2025-10-31T13:17:15","slug":"fortress-xvxv-pairs-sudoku-by-philip-newman","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/10\/fortress-xvxv-pairs-sudoku-by-philip-newman\/","title":{"rendered":"Fortress XVXV Pairs Sudoku by Philip Newman"},"content":{"rendered":"

(This post is part of the Genuinely Approachable Sudoku (GAS)<\/a> series.)
\nPhilip brings another two-variation Sudoku with this Fortress (gray cells larger than surrounding white cells) and XVXV Pairs (5\/10\/15 edge sums) challenge. It should make you go “?” for sure, but “Will It GAS?”<\/em><\/p>\n

\"Fortress<\/p>\n

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

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

Theme:<\/b> Will It GAS?<\/p>\n

Author\/Opus:<\/b> This is the 51st puzzle from Philip Newman, part of the Genuinely Approachable Sudoku (GAS<\/a>) team.<\/p>\n

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). A number in a gray cell must be larger than any number in an adjacent white cell that shares an edge. (To assist solvers, this is shown like a greater than\/less than shape in how the gray cells are drawn.) Also, whenever a V, X, or XV reflecting the numbers 5, 10, or 15 in Roman numerals, is placed on the edge between cells, the numbers in the two adjacent cells must sum to exactly 5, 10, or 15. (Pairs of cells without a V, X or XV can have any sum value.)<\/p>\n

GAS Time Standards (highlight to view):<\/b> Two party hats (\ud83c\udfa9\ud83e\udd73): 7:30<\/span>; One party hat (\ud83e\udd73): 16:00<\/span>. All other solvers earn a \ud83e\udd95: Protective Punatitan<\/span>.<\/p>\n

Thomas Hits the GAS (highlight to view): <\/b> 4:16<\/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 less common variations of Sudoku<\/a>.<\/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.) Philip brings another two-variation Sudoku with this Fortress (gray cells larger than surrounding white cells) and XVXV Pairs (5\/10\/15 edge sums) challenge. It should make you go “?” for sure, but “Will It GAS?” PDF or solve online (using SudokuPad) Theme: Will It GAS? […]<\/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-34394","post","type-post","status-publish","format-standard","hentry","category-puzzle","category-othersudoku","tag-sudoku-3","tag-wednesdaythursday","tag-variation-2","tag-gas"],"yoast_head":"\nFortress XVXV Pairs Sudoku by Philip Newman - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"Philip brings another two-variation Fortress XVXV Pairs Sudoku. 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