{"product_id":"easy-mathematical-puzzles-calcudoku-puzzles-100-large-print-puzzles-9781718099319","title":"Easy Mathematical Puzzles: CalcuDoku Puzzles - 100 Large Print Puzzles","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\u003elogic brain teasers with answers - puzzles and brain teasers - math brain teasers for adults - mind challenging games - mind twisters - math riddles and answers - puzzles and games for adults - brain challenge - good brain teasers - funny puzzles - brain puzzles with answers - puzzle and brain games - mental puzzles - fun brain games for adults - easy brain teasers - brain twister puzzle - riddles and brain teasers with answers - best brain teaser games - logic puzzles with answers - challenging puzzle games\u003c\/p\u003e","brand":"Independently Published","offers":[{"title":"Paperback","offer_id":45547376640151,"sku":"9781718099319","price":931.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781718099319.webp?v=1767127538","url":"https:\/\/atlanticbooks.com\/products\/easy-mathematical-puzzles-calcudoku-puzzles-100-large-print-puzzles-9781718099319","provider":"Atlantic Books","version":"1.0","type":"link"}