{"product_id":"logic-grid-puzzles-for-adults-mathrax-puzzles-9781793051127","title":"Logic Grid Puzzles For Adults: Mathrax Puzzles","description":"\u003cp\u003e\u003cb\u003eMathrax\u003c\/b\u003e consists of a square grid. The goal is to fill in each cell with numbers from 1 to N, where N is the size of the puzzle's side. No number may appear twice in any row or column. Circles with additional conditions may be situated on intersections of lines inside the grid; a circle may contain: - A number and a sign of mathematical operation (addition, subtraction, multiplication, division) - a number is a result of an operation execution with numbers in diagonally adjacent cells. - A letter \"E\" (\"even\") - all numbers in four cells are even. - A letter \"O\" (\"odd\") - all numbers in four cells are odd.\u003c\/p\u003e\u003cp\u003e============\u003cbr\u003eKEYWORDS\/TAGS: \u003c\/p\u003e\u003cp\u003e logic games - logic game puzzle - logic puzzles - logic puzzle books for adults - logic puzzle books for teens - logic puzzle for adults - logic puzzles riddles - brainteasers for adults - brainteaser puzzles for adults - brainteaser books for adults - brainteaser adults - brainteaser for adults - brainteaser games for adults - brainteaser jigsaw puzzles - logic puzzle large print \u003c\/p\u003e\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50363233337618,"sku":"9781793051127","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_e500009e-60a1-4cd0-9561-85f1258ddb0b.jpg?v=1728408601","url":"https:\/\/surprise-castle.myshopify.com\/products\/logic-grid-puzzles-for-adults-mathrax-puzzles-9781793051127","provider":"Surprise Castle","version":"1.0","type":"link"}