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The post 20 Printable Sudoku Puzzles to Test Your Smarts appeared first on Reader's Digest. You want to start with the easy ones, but if you're an expert, you can skip to the extra hard puzzles.
Daily Sudoku puts a whole new twist on the classic game you know and love! Play for score as you enter numbers with the clock ticking away, but don't guess or you'll lose points and the Perfect Bonus!
A typical Sudoku puzzle. A standard Sudoku contains 81 cells, in a 9×9 grid, and has 9 boxes, each box being the intersection of the first, middle, or last 3 rows, and the first, middle, or last 3 columns. Each cell may contain a number from one to nine, and each number can only occur once in each row, column, and box.
Sudoku. Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle. By Masque Publishing
'digit-single'; originally called Number Place) [1] is a logic-based, [2] [3] combinatorial [4] number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid (also called "boxes", "blocks", or "regions") contains all of the ...
The general problem of solving Sudoku puzzles on n 2 ×n 2 grids of n×n blocks is known to be NP-complete. [8] A puzzle can be expressed as a graph coloring problem. [9] The aim is to construct a 9-coloring of a particular graph, given a partial 9-coloring. The Sudoku graph has 81 vertices, one vertex for each cell.
SUDOKU. Play the USA TODAY Sudoku Game.. JUMBLE. Jumbles: MACAW HOUSE WIDGET DIGEST. Answer: They loved their “talkative” kitty and thought she was — THE CAT’S MEOW
[4] [5] [7] In MAA Reviews (a publication of the Mathematical Association of America), reviewer Mark Hunacek called it called it "a delightful book which I thoroughly enjoyed reading" and said "a person with very limited background in mathematics, or a person without much experience solving Sudoku puzzles, could still find something of interest ...