{"product_id":"jigsaw-sudoku-vol-4-160-very-twisted-puzzles-9781480041233","title":"Jigsaw Sudoku vol. 4: 160 very twisted puzzles","description":"Jigsaw Sudoku Volume 4 - 160 Very Twisted Puzzles\u003cp\u003eThe subtitle says \"very twisted\" and it delivers. By Volume 4, DJAPE has refined his Jigsaw Sudoku designs to be more creative and more challenging than the earlier volumes. The irregular regions are twistier, the solving paths are less obvious, and the puzzles reward solvers who have developed genuine fluency with the Law of Leftovers technique.\u003c\/p\u003e\u003cp\u003e160 puzzles across multiple difficulty levels. Each puzzle has its own unique jigsaw region design - no two layouts repeat. The same rules as always: each row, column, and irregular 9-cell region must contain digits 1-9.\u003c\/p\u003e\u003cp\u003eIf you have solved Volumes 1-3, these puzzles represent a step up in design sophistication. If this is your first Jigsaw book, it works as a standalone - the rules are self-contained - but you may want to start with an earlier volume for a gentler introduction.\u003c\/p\u003e\u003cp\u003e160 puzzles. 6 x 9 inch format. All solutions included. From DJAPE - 250+ puzzle books, PhD in Computer Science, Washington Post since 2006.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Djape\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Createspace Independent Publishing Platform\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 10\/05\/2012\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 102\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.32lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.21d\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9781480041233\u003cbr\u003e\u003cp\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003eDJAPE is the author of over 40 puzzle books and a dozen of puzzle games for Amazon Kindle, ranging from Sudoku variants such as Killer Sudoku and Samurai Sudoku to Kakuro, TriDoku, Hidoku, CalcuDoku and Picross\/Hanjie\/Griddlers\/Nonograms puzzles. Also, Djape contributes regularly to newspapers and magazines across the globe, including \u003cstrong\u003eThe Washington Post\u003c\/strong\u003e. Currently Djape is working on his \u003cstrong\u003ePhD\u003c\/strong\u003e thesis in \u003cstrong\u003eComputer Science\u003c\/strong\u003e. Likes \u003cstrong\u003esailing\u003c\/strong\u003e, dancing tango, playing \u003cstrong\u003ebridge\u003c\/strong\u003e and traveling.\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003ci\u003eThis title is not returnable\u003c\/i\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Createspace Independent Publishing Platform","offers":[{"title":"Paperback","offer_id":45254405488755,"sku":"9781480041233","price":14.13,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9255\/0515\/files\/img_f823d097-7068-457a-9bf3-61fac102c8a8.jpg?v=1784204223","url":"https:\/\/bookstorenmore.com\/products\/jigsaw-sudoku-vol-4-160-very-twisted-puzzles-9781480041233","provider":"Bookstore N More","version":"1.0","type":"link"}