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Mathematical context. The general problem of solving Sudoku puzzles on n2 × n2 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.
Times style is to always capitalize the first letter of a clue, regardless of whether the clue is a complete sentence or whether the first word is a proper noun. On occasion, this is used to deliberately create difficulties for the solver; e.g., in the clue [John, for one], it is ambiguous whether the clue is referring to the proper name John ...
Larger grids are also possible, or different irregular shapes (under various names such as Suguru, Tectonic, Jigsaw Sudoku etc.). The Times offers a 12×12-grid "Dodeka Sudoku" with 12 regions of 4×3 squares. Dell Magazines regularly publishes 16×16 "Number Place Challenger" puzzles (using the numbers 1–16 or the letters A-P).
Sudoku. Completely fill the 9x9 grid, using the values 1 through 9 only once in each 3x3 section of the puzzle. By Masque Publishing. Advertisement. Advertisement. Feedback. Help. Join AOL ...
A Sudoku variant with prime N (7×7) and solution. (with Japanese symbols). Overlapping grids. The classic 9×9 Sudoku format can be generalized to an N×N row-column grid partitioned into N regions, where each of the N rows, columns and regions have N cells and each of the N digits occur once in each row, column or region.
Use Alexa to print your personal to-do lists, crosswords and games from The Los Angeles Times, recipes and educational worksheets for children, among other items. The new Alexa Print feature is ...
LinkedIn describes them as “thinking-oriented games,” though the format will likely look familiar to fans of The New York Times Games app. Each game can only be played once a day, and players ...
Sudoku solving algorithms. 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.
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