{"id":21164,"date":"2022-07-03T09:00:31","date_gmt":"2022-07-03T16:00:31","guid":{"rendered":"https:\/\/www.gmpuzzles.com\/blog\/?p=21164"},"modified":"2022-07-31T11:02:35","modified_gmt":"2022-07-31T18:02:35","slug":"sunday-stumper-japanese-sums-battleships-by-john-bulten","status":"publish","type":"post","link":"https:\/\/www.gmpuzzles.com\/blog\/2022\/07\/sunday-stumper-japanese-sums-battleships-by-john-bulten\/","title":{"rendered":"Sunday Stumper: Japanese Sums (Battleships) by John Bulten"},"content":{"rendered":"<p><i>Since 2021, we have posted some extra difficult <a href=https:\/\/www.gmpuzzles.com\/blog\/tag\/sundaystumper\/>Sunday Stumpers<\/a>, about once a month. These will be quite tough puzzles, but with a logical path to be found (and solution videos to help). This seventh Sunday Stumper of 2022 is a variation of Japanese Sums by John Bulten.<\/i><\/p>\n<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2022\/220703-JapaneseSumsBattleships-Yamato.png\" alt=\"Japanese Sums (Battleships) by John Bulten\"><\/p>\n<p align=\"center\"><a href=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2022\/220703-JapaneseSumsBattleships-Yamato.pdf\">PDF<\/a><\/p>\n<p>or <a href=https:\/\/gmpuzzles.com\/s\/220703Yama>solve online<\/a> (using our beta test of Penpa-Edit tools; use tab to shift between number entry and shading modes.)<\/p>\n<p><b>Theme:<\/b> Yamato<\/p>\n<p><b>Author\/Opus:<\/b> This is the 88th puzzle from our contributing puzzlemaster John Bulten.<\/p>\n<p><b>Rules:<\/b> Standard Japanese Sums rules: Place the numbers in the indicated range (1-9) in some of the cells so that no number is repeated in any row or column. Numbers on the outside of the grid indicate the sums of adjacent number groups in that row or column, in order. Each sum is separated by at least one unused cell. A ? can represent any sum of 1 or larger.<\/p>\n<p>Also, all unused cells must form an <i>unknown<\/i> fleet of 1-cell wide ships in the grid. Each segment of a ship occupies a single cell, and ships do not touch each other, even diagonally.<\/p>\n<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/www.gmpuzzles.com\/images\/puzzles2022\/JapaneseSumsBattleships-Example.png\" alt=\"Japanese Sums Example\" width=500><\/p>\n<p><b>Difficulty:<\/b> 5 stars<\/p>\n<p><b>Time Standards (highlight to view):<\/b> <span style=\"color:white;background-color:white;\">Grandmaster = 18:30, Master = 30:00, Expert = 1:00:00<\/span><\/p>\n<p><b>Solution:<\/b> <a href=https:\/\/www.gmpuzzles.com\/images\/puzzles2022\/220703-JapaneseSumsBattleships-Yamato-R4b-soln.pdf>PDF<\/a> and <a href=https:\/\/youtu.be\/7a6Ql45qDCg>solving video<\/a>.<\/p>\n<p><b>Note:<\/b> Follow this link for other <a href=\"https:\/\/www.gmpuzzles.com\/blog\/category\/numberplacement\/japanese-sums\/\">Japanese Sums<\/a> puzzles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Since 2021, we have posted some extra difficult Sunday Stumpers, about once a month. These will be quite tough puzzles, but with a logical path to be found (and solution videos to help). This seventh Sunday Stumper of 2022 is a variation of Japanese Sums by John Bulten. PDF or solve online (using our beta [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[199,3,55],"tags":[56,86,182],"class_list":["post-21164","post","type-post","status-publish","format-standard","hentry","category-japanese-sums","category-puzzle","category-variation","tag-variation-2","tag-japanesesums","tag-sundaystumper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sunday Stumper: Japanese Sums (Battleships) by John Bulten - The Art of Puzzles<\/title>\n<meta name=\"description\" content=\"Can you match wits with veteran puzzlemaker John Bulten and crack this Japanese Sums\/Battleships combination?\" \/>\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\/2022\/07\/sunday-stumper-japanese-sums-battleships-by-john-bulten\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sunday Stumper: Japanese Sums (Battleships) by John Bulten - 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