{"product_id":"9781435146631","title":"Challenging Sudoku 1","description":"[Challenging Sudoku 1]\u003cp\u003e[\u003cb\u003e9781435146631\u003c\/b\u003e]\u003c\/p\u003e\u003cp\u003e[front cover]\u003c\/p\u003e\u003cp\u003eChallenging Sudoku 1\u003c\/p\u003e\u003cp\u003eFrank Longo\u003c\/p\u003e\u003cp\u003e[spine] Longo Challenging[SL1]  Sudoku 1 [logo]\u003c\/p\u003e\u003cp\u003e[back cover]\u003c\/p\u003e\u003cp\u003e[headline] Master these Baffling Sudoku Puzzles!\u003c\/p\u003e\u003cp\u003eIf you want to step it up a notch when it comes to your favorite puzzles, look no further! This fun book offers a series of challenging sudoku that gradually increase with difficulty. Start with techniques[CEB2] [SL3]   such as Subsets and Interaction. Next, X-Wings, Swordfish, and other fiendish upper-level strategies will test your skills. At last you’ll be ready to use XYZ-Wings, Jellyfish, One-Sided Gordonian Rectangles, and other complex steps to battle the hardest numerical monsters.\u003c\/p\u003e\u003cp\u003e [bar code] Printed in the United States of America\u003c\/p\u003e\u003cp\u003e [SL1]Do you want the author(s) names to appear on the spine?\u003c\/p\u003e\u003cp\u003e [CEB2]Wait for Peter’s confirm\u003c\/p\u003e\u003cp\u003e [SL3]Please confirm that you’ll using all the techniques mentioned in the copy.  Yes. Confirmed. PG\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Fall River Press","offers":[{"title":"Default Title","offer_id":47300813226224,"sku":"9781435146631","price":5.98,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781435146631_p0.jpg?v=1763754081","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781435146631","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}