{"product_id":"2940013182691","title":"Sudoku Puzzle Secrets: The Ultimate Guide!","description":"TABLE OF CONTENTS\u003cbr\u003e\u003cbr\u003eINTRODUCTION ………………………………………….. 04 \u003cbr\u003eCHAPTER 1: HISTORY OF SUDOKU ………………… 06\u003cbr\u003e\u003cbr\u003eCHAPTER 2: SUDOKU EXPLAINED …………………. 08\u003cbr\u003eVariants ………………………………………………… 08\u003cbr\u003eJapanese Variants ………………………………….. 10\u003cbr\u003eTerminology and Rules ……………………………. 12\u003cbr\u003e\u003cbr\u003eCHAPTER 3: THE MATH BEHIND SUDOKU ……….. 13\u003cbr\u003eA Latin Square ………………………………………… 14\u003cbr\u003eUnique Grids …………………………………………… 15\u003cbr\u003e\u003cbr\u003eCHAPTER 4: CONSTRUCTION OF THE PUZZLE ….. 16\u003cbr\u003eCHAPTER 5: SOLUTION METHODS–SCANNING ... 18\u003cbr\u003eCross-Hatching And Counting ……………………. 20\u003cbr\u003e\u003cbr\u003eCHAPTER 6: BEGINNING THE CHALLENGE ………. 21\u003cbr\u003eGuessing ………………………………………………… 23\u003cbr\u003eStarting The Game …………………………………… 23\u003cbr\u003e\u003cbr\u003eCHAPTER 7: CHANGE OF STRATEGY ………………… 28\u003cbr\u003eSearching For The Lone Number ………………… 28\u003cbr\u003eTwins …………………………………………………….. 30\u003cbr\u003eTriplets …………………………………………………… 32\u003cbr\u003e\u003cbr\u003eCHAPTER 8: ELIMINATE THE EXTRANEOUS ……… 34\u003cbr\u003eThree Numbers Exclusively ………………………. 38\u003cbr\u003eStep Up The Action …………………………………… 39\u003cbr\u003e\u003cbr\u003eCHAPTER 9: WHEN EVERYTHING ELSE FAILS …... 41\u003cbr\u003eAriadne’s Thread ……………………………………… 42\u003cbr\u003e\u003cbr\u003eCHAPTER 10: SOLVING A DIABOLICAL PUZZLE … 43\u003cbr\u003e\u003cbr\u003eCHAPTER 11: SAMPLE SUDOKU PUZZLES …………. 47\u003cbr\u003e\u003cbr\u003eCHAPTER 12: SOLUTIONS ……………………………… 53\u003cbr\u003e\u003cbr\u003eCONCLUSION ………………………………………………. 58","brand":"BDP","offers":[{"title":"Default Title","offer_id":47069836706032,"sku":"2940013182691","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013182691_p0.jpg?v=1763589023","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013182691","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}