{"product_id":"complex-math-puzzles-calcudoku-puzzles-the-best-japanese-puzzles-collection-9781719873512","title":"Complex Math Puzzles: CalcuDoku Puzzles - The Best Japanese Puzzles Collection","description":"\u003cp\u003e • Author(s): Jeff Heldt\u003cbr\u003e • Publisher: Independently Published\u003cbr\u003e • Publisher Imprint: Independently Published\u003cbr\u003e • BISAC: Logic \u0026amp; Brain Teasers\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalcuDoku\u003c\/b\u003e is a mathematical and logical puzzle loosely similar to sudoku. It was invented by a Japanese mathematics teacher Tetsuya Miyamoto. The objective is to fill the grid in with the digits 1 through N (where N is the number of rows or columns in the grid) such that: - Each row contains exactly one of each digit. - Each column contains exactly one of each digit. - Each bold-outlined group of cells (block) contains digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (-), multiplication (×), and division ( ). - Unlike Killer Sudoku, digits may repeat within a block.\u003c\/p\u003e\u003cp\u003ecalcudoku puzzle books - math puzzle books for adults - math puzzle books - math puzzle for adults - mathematical puzzles - mathematical puzzle books - mathematical puzzle books for adults - mathematical puzzles with answers - mathematical puzzle games - mathematical puzzle books - mathematical games and puzzle - mathematical crossword puzzle with answers - mathematical jigsaw puzzle - japanese mathematical puzzle - mathematical logic puzzle - mathematical matrix puzzle - mathematical mind puzzle - mathematical matching puzzle - math puzzles for middle school - math puzzle brain teasers\u003c\/p\u003e","brand":"Independently Published","offers":[{"title":"Paperback","offer_id":45538917712023,"sku":"9781719873512","price":915.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781719873512.webp?v=1767117443","url":"https:\/\/atlanticbooks.com\/products\/complex-math-puzzles-calcudoku-puzzles-the-best-japanese-puzzles-collection-9781719873512","provider":"Atlantic Books","version":"1.0","type":"link"}