{"product_id":"krazydad-psycho-killer-sudoku-volume-jim-bumgardner-9781946855312","title":"Krazydad Psycho Killer Sudoku Volume 2: 360 Tough to Insane Puzzles","description":"Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you try them, you'll find it very hard to go back to boring plain old Sudoku! This book has 360 puzzles, in order of difficulty ranging from Tough to Insane, using the same grading system as my puzzle website, Krazydad.com. Each puzzle has a single, unique solution. The puzzles are arranged 4-per-page. If you find them too small, check out my LARGE PRINT Killer Sudoku books, which have one large puzzle per page.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Jim Bumgardner\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1946855316\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781946855312\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Tiny Lobster\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 10\/26\/2018\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 130\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.70lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 11.00h x 8.50w x 0.28d\u003cbr\u003e\u003cb\u003eLarge Print\u003c\/b\u003e","brand":"Jim Bumgardner","offers":[{"title":"Paperback","offer_id":48519686258943,"sku":"9781946855312","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_cfde48d9-ccbc-4070-9a2e-e38aeb6652be.jpg?v=1778738207","url":"https:\/\/www.whiterainbookhouse.com\/products\/krazydad-psycho-killer-sudoku-volume-jim-bumgardner-9781946855312","provider":"WR Book House","version":"1.0","type":"link"}