{"id":32678,"date":"2025-05-30T09:05:21","date_gmt":"2025-05-30T16:05:21","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=32678"},"modified":"2025-06-25T07:31:51","modified_gmt":"2025-06-25T14:31:51","slug":"just-one-cell-killer-sudoku-by-thomas-snyder","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2025\/05\/just-one-cell-killer-sudoku-by-thomas-snyder\/","title":{"rendered":"Just One Cell Killer Sudoku by Thomas Snyder"},"content":{"rendered":"

This is the first of two qualifier puzzles posting today in this style (following an easy warm-up); both are roughly the same difficulty with harder Killers coming tomorrow.<\/i><\/p>\n

\"Just<\/p>\n

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

or solve online in Penpa<\/a>, or also solve online in SudokuPad as a new option<\/a> (note: highly recommended to turn off “Mark Solved Digits” option if you use that in SudokuPad).<\/p>\n

Author\/Opus:<\/b> This is the 573rd puzzle from Thomas Snyder, aka Dr. Sudoku.<\/p>\n

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

This puzzle follows Killer Sudoku rules, so no number repeats in any row, column, or bold region. The sum of the numbers in each cage must equal the value given in the upper-left corner of that cage. Numbers cannot repeat inside a cage.<\/p>\n

Time Standards:<\/b> This competition had 1-point (easy), 2-point (medium), 3-point (hard), or higher value puzzles. This was worth 1 point (easy category), roughly .75-1 minute target<\/span>.<\/p>\n

Solution:<\/b> PDF<\/a><\/p>\n

Note:<\/b> Follow this link for other Just One Cell Sudoku<\/a>.<\/p>\n

Note 2:<\/b>\u00a0Comments on the blog are great! For a more interactive discussion, please also consider using our\u00a0Just One Cell Sudoku Discussion post<\/a>\u00a0on the GMPuzzles Discord. Not a member of the Discord? Click\u00a0this link<\/a>\u00a0for basic access.<\/p>\n","protected":false},"excerpt":{"rendered":"

This is the first of two qualifier puzzles posting today in this style (following an easy warm-up); both are roughly the same difficulty with harder Killers coming tomorrow. PDF or solve online in Penpa, or also solve online in SudokuPad as a new option (note: highly recommended to turn off “Mark Solved Digits” option if […]<\/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-32678","post","type-post","status-publish","format-standard","hentry","category-just-one-cell-sudoku","category-puzzle","tag-justonecellsudoku"],"yoast_head":"\nJust One Cell Killer 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. 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