{"product_id":"killer-sudoku-variants-5-different-variants-of-sum-sudoku-puzzles-for-adults-easy-to-hard-9798653108204","title":"Killer Sudoku Variants: 5 different Variants of Sum Sudoku Puzzles for adults (easy to hard)","description":"\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eKeep your mind young and your memory sharp with 450 Killer Sudoku Variety Puzzles Book.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThere are 5 different types of puzzles in this book, Diagonal Killer Sudoku, Jigsaw Killer Sudoku, Killer Windoku, Girandola Killer Sudoku, Antidiagonal Killer Sudoku.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe book has 90 puzzles for each type from easy to hard, a total of 450 puzzles with solutions.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is killer sudoku and how to solve?\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eit starts with an empty grid and only given the sum of caged cells written in small font on the upper left corner of the cage. \u003c\/li\u003e\n\u003cli\u003eNo number can be repeated in any row, column, region or cage. \u003c\/li\u003e\n\u003cli\u003eYou have to work out the summation and find the numbers in the cage, region, row, and columns. \u003c\/li\u003e\n\u003cli\u003eOf course, you will use every tip and trick used for traditional sudoku and more. \u003c\/li\u003e\n\u003cli\u003eThere are many tips to solve traditional sudoku especially elimination and exclusion and logic\u003c\/li\u003e\n\u003cli\u003eBut for killer sudoku, the rule of 45 and unique sum are the most important clues to solve the puzzles. \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagonal Sudoku or Sudoku X \u003c\/strong\u003ehas an extra rule where the numbers 1 to 9 must fit in the diagonal lines and no repetition of any number in the diagonals marked by the gray X lines. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJigsaw \u003c\/strong\u003eSudoku the 3x3 blocks are no longer square, instead it's irregular region of 9 cells. As twisted as it sounds, these puzzles are challenging and addictive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKiller Windoku \u003c\/strong\u003ehas extra four (3x3) blocks (shaded) where the numbers 1 to 9 can fit in without repetition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGirandola \u003c\/strong\u003eKiller Sudoku has an additional rule where the scatted shaded cells must contain the numbers 1 to 9 with no repetition in those shaded cells.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the Anti-diagonal\u003c\/strong\u003e variation, the diagonal lines should only have at most three different numbers. Repeated numbers are okay in the diagonal line, that is why it's called anti-diagonal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: 8 x 11.5 inch (large size) with softcover and paperback binding.\u003c\/li\u003e\n\u003cli\u003ePages: 110 pages with full-page 450 different puzzles. (6 puzzles per page so it's compact for easy carrying and holding).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eStretch your brain with this unique selection of fun and challenging Killer Sudoku Variety. Scroll up and order your copy.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e","brand":"Independently Published","offers":[{"title":"Default Title","offer_id":50382919336210,"sku":"9798653108204","price":7.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/surprise-castle.myshopify.com\/products\/killer-sudoku-variants-5-different-variants-of-sum-sudoku-puzzles-for-adults-easy-to-hard-9798653108204","provider":"Surprise Castle","version":"1.0","type":"link"}