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by Puzzpond Designs (Author)
Improve Your Mental Focus, Boost Your Brain Powers, and enjoy your time solving the Killer Sudoku puzzles.
Sudoku games have been scientifically proven to improve mental focus, Sharpen the memory as well as protecting the brain from neurodegenerative disorders.
Killer Sudoku cheat sheet for unique sum combinations included What is killer Sudoku, aka Sum Sudoku or sumdoku? And how to solve them?
- You start with an empty grid and only given the sum of caged cells written in small font on the upper left corner of the cage. You have to work out the summation and find the numbers in the cage, region, row, and columns.
- Of course, you will use every tip and trick used for traditional Sudoku and more.
- As any Sudoku puzzles, numbers from 1 to 9 to be placed in a row or column or region with no repetition.
- There are many tips to solve traditional Sudoku especially elimination and exclusion and logic. But for killer Sudoku the rule of 45 and unique sum are one of the most important clues to solve the puzzle. (More instruction and tips can be found inside the book.)
Features:
- Size: 8 x 11.5 inch (large size) with softcover and paperback binding so easy store and use.
- Pages: 132 pages with full-page 400 different puzzles. Plus the solutions of all the puzzles at the end.
- Plus 10+ Bonus puzzles of different Sudoku variant
- Killer Sudoku cheat sheet for unique sum combinations included.
Improve your mental focus with this unique selection of easy, fun killer Sudoku puzzles. Scroll up and order your copy.
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Shipping information
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- Store 7994 Shipping policy
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Every product we offer is:
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Return Eligibility
Items must be unused, unworn, and in original condition with all tags, packaging, and accessories included. Items showing any signs of wear or damage will not be accepted.
Return Window
Return requests must be made within 14 days of delivery.
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Customers are responsible for return shipping costs unless the item is defective, damaged, or incorrect.
Luxury Items
Items valued over $1,000 may be subject to a 7% restocking fee upon approved return.
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Shipping Policy
Complimentary shipping is offered on orders over $300. Orders below this threshold are subject to standard shipping rates at checkout.
